Ysurac / FlightAirMap

search-php.php

Indentation +69 added lines, -69 removed lines

@@ -4,55 +4,55 @@ 
 require_once('require/class.Language.php');
 $Spotter = new Spotter();
 if (isset($_GET['start_date'])) {
-        //for the date manipulation into the query
-        if($_GET['start_date'] != "" && $_GET['end_date'] != ""){
-                $start_date = $_GET['start_date'].":00";
-                $end_date = $_GET['end_date'].":00";
-                $sql_date = $start_date.",".$end_date;
-        } else if($_GET['start_date'] != ""){
-                $start_date = $_GET['start_date'].":00";
-                $sql_date = $start_date;
-        } else if($_GET['start_date'] == "" && $_GET['end_date'] != ""){
-                $end_date = date("Y-m-d H:i:s", strtotime("2014-04-12")).",".$_GET['end_date'].":00";
-                $sql_date = $end_date;
-        } else $sql_date = '';
+		//for the date manipulation into the query
+		if($_GET['start_date'] != "" && $_GET['end_date'] != ""){
+				$start_date = $_GET['start_date'].":00";
+				$end_date = $_GET['end_date'].":00";
+				$sql_date = $start_date.",".$end_date;
+		} else if($_GET['start_date'] != ""){
+				$start_date = $_GET['start_date'].":00";
+				$sql_date = $start_date;
+		} else if($_GET['start_date'] == "" && $_GET['end_date'] != ""){
+				$end_date = date("Y-m-d H:i:s", strtotime("2014-04-12")).",".$_GET['end_date'].":00";
+				$sql_date = $end_date;
+		} else $sql_date = '';
 } else $sql_date = '';
 
 if (isset($_GET['highest_altitude'])) {
-        //for altitude manipulation
-        if($_GET['highest_altitude'] != "" && $_GET['lowest_altitude'] != ""){
-                $end_altitude = $_GET['highest_altitude'];
-                $start_altitude = $_GET['lowest_altitude'];
-                $sql_altitude = $start_altitude.",".$end_altitude;
-        } else if($_GET['highest_altitude'] != ""){
-                $end_altitude = $_GET['highest_altitude'];
-                $sql_altitude = $end_altitude;
-        } else if($_GET['highest_altitude'] == "" && $_GET['lowest_altitude'] != ""){
-                $start_altitude = $_GET['lowest_altitude'].",60000";
-                $sql_altitude = $start_altitude;
-        } else $sql_altitude = '';
+		//for altitude manipulation
+		if($_GET['highest_altitude'] != "" && $_GET['lowest_altitude'] != ""){
+				$end_altitude = $_GET['highest_altitude'];
+				$start_altitude = $_GET['lowest_altitude'];
+				$sql_altitude = $start_altitude.",".$end_altitude;
+		} else if($_GET['highest_altitude'] != ""){
+				$end_altitude = $_GET['highest_altitude'];
+				$sql_altitude = $end_altitude;
+		} else if($_GET['highest_altitude'] == "" && $_GET['lowest_altitude'] != ""){
+				$start_altitude = $_GET['lowest_altitude'].",60000";
+				$sql_altitude = $start_altitude;
+		} else $sql_altitude = '';
 } else $sql_altitude = '';
 
 //calculuation for the pagination
 if(!isset($_GET['limit']))
 {
-        if (!isset($_GET['number_results']))
-        {
-                $limit_start = 0;
-                $limit_end = 25;
-                $absolute_difference = 25;
-        } else {
-                if ($_GET['number_results'] > 1000){
-                        $_GET['number_results'] = 1000;
-                }
-                $limit_start = 0;
-                $limit_end = $_GET['number_results'];
-                $absolute_difference = $_GET['number_results'];
-        }
+		if (!isset($_GET['number_results']))
+		{
+				$limit_start = 0;
+				$limit_end = 25;
+				$absolute_difference = 25;
+		} else {
+				if ($_GET['number_results'] > 1000){
+						$_GET['number_results'] = 1000;
+				}
+				$limit_start = 0;
+				$limit_end = $_GET['number_results'];
+				$absolute_difference = $_GET['number_results'];
+		}
 }  else {
-        $limit_explode = explode(",", $_GET['limit']);
-        $limit_start = $limit_explode[0];
-        $limit_end = $limit_explode[1];
+		$limit_explode = explode(",", $_GET['limit']);
+		$limit_start = $limit_explode[0];
+		$limit_end = $limit_explode[1];
 }
 
 $absolute_difference = abs($limit_start - $limit_end);
@@ -95,39 +95,39 @@ 
   {
 	  
 	array_push($flights, array(
-                            "id" => $spotter_item['spotter_id'], 
+							"id" => $spotter_item['spotter_id'], 
 							"ident" => $spotter_item['ident'], 
 							"registration" => $spotter_item['registration'], 
 							"aircraft_icao" => $spotter_item['aircraft_type'], 
-                            "aircraft_name" => $spotter_item['aircraft_name'], 
-                            "aircraft_manufacturer" => $spotter_item['aircraft_manufacturer'],
+							"aircraft_name" => $spotter_item['aircraft_name'], 
+							"aircraft_manufacturer" => $spotter_item['aircraft_manufacturer'],
 							"airline_name" => $spotter_item['airline_name'], 
-                            "airline_icao" => $spotter_item['airline_icao'], 
-                            "airline_iata" => $spotter_item['airline_iata'], 
-                            "airline_country" => $spotter_item['airline_country'], 
-                            "airline_callsign" => $spotter_item['airline_callsign'], 
-                            "airline_type" => $spotter_item['airline_type'],
-                            "departure_airport_city" => $spotter_item['departure_airport_city'], 
-                            "departure_airport_country" => $spotter_item['departure_airport_country'], 
-                            "departure_airport_iata" => $spotter_item['departure_airport_iata'], 
-                            "departure_airport_icao" => $spotter_item['departure_airport_icao'], 
-                            "departure_airport_latitude" => $spotter_item['departure_airport_latitude'], 
-                            "departure_airport_longitude" => $spotter_item['departure_airport_longitude'], 
-                            "departure_airport_altitude" => $spotter_item['departure_airport_altitude'], 
-                            "arrival_airport_city" => $spotter_item['arrival_airport_city'], 
-                            "arrival_airport_country" => $spotter_item['arrival_airport_country'], 
-                            "arrival_airport_iata" => $spotter_item['arrival_airport_iata'], 
-                            "arrival_airport_icao" => $spotter_item['arrival_airport_icao'], 
-                            "arrival_airport_latitude" => $spotter_item['arrival_airport_latitude'], 
-                            "arrival_airport_longitude" => $spotter_item['arrival_airport_longitude'], 
-                            "arrival_airport_altitude" => $spotter_item['arrival_airport_altitude'],
-                            "latitude" => $spotter_item['latitude'], 
-                            "longitude" => $spotter_item['longitude'], 
-                            "altitude" => $spotter_item['altitude'], 
-                            "ground_speed" => $spotter_item['ground_speed'], 
-                            "heading" => $spotter_item['heading'], 
-                            "heading_name" => $spotter_item['heading_name'], 
-                            "waypoints" => $spotter_item['waypoints'],
+							"airline_icao" => $spotter_item['airline_icao'], 
+							"airline_iata" => $spotter_item['airline_iata'], 
+							"airline_country" => $spotter_item['airline_country'], 
+							"airline_callsign" => $spotter_item['airline_callsign'], 
+							"airline_type" => $spotter_item['airline_type'],
+							"departure_airport_city" => $spotter_item['departure_airport_city'], 
+							"departure_airport_country" => $spotter_item['departure_airport_country'], 
+							"departure_airport_iata" => $spotter_item['departure_airport_iata'], 
+							"departure_airport_icao" => $spotter_item['departure_airport_icao'], 
+							"departure_airport_latitude" => $spotter_item['departure_airport_latitude'], 
+							"departure_airport_longitude" => $spotter_item['departure_airport_longitude'], 
+							"departure_airport_altitude" => $spotter_item['departure_airport_altitude'], 
+							"arrival_airport_city" => $spotter_item['arrival_airport_city'], 
+							"arrival_airport_country" => $spotter_item['arrival_airport_country'], 
+							"arrival_airport_iata" => $spotter_item['arrival_airport_iata'], 
+							"arrival_airport_icao" => $spotter_item['arrival_airport_icao'], 
+							"arrival_airport_latitude" => $spotter_item['arrival_airport_latitude'], 
+							"arrival_airport_longitude" => $spotter_item['arrival_airport_longitude'], 
+							"arrival_airport_altitude" => $spotter_item['arrival_airport_altitude'],
+							"latitude" => $spotter_item['latitude'], 
+							"longitude" => $spotter_item['longitude'], 
+							"altitude" => $spotter_item['altitude'], 
+							"ground_speed" => $spotter_item['ground_speed'], 
+							"heading" => $spotter_item['heading'], 
+							"heading_name" => $spotter_item['heading_name'], 
+							"waypoints" => $spotter_item['waypoints'],
 							"date" => date("c", strtotime($spotter_item['date_iso_8601']))
 						)
 			); 	

aircraft-statistics-airline.php

Indentation +2 added lines, -2 removed lines

@@ -4,8 +4,8 @@
 require_once('require/class.Language.php');
 
 if (!isset($_GET['aircraft_type'])) {
-        header('Location: '.$globalURL.'/aircraft');
-        die();
+		header('Location: '.$globalURL.'/aircraft');
+		die();
 }
 $aircraft_type = filter_input(INPUT_GET,'aircraft_type',FILTER_SANITIZE_STRING);
 $Spotter = new Spotter();

search-yaml.php

Indentation +104 added lines, -104 removed lines

@@ -4,55 +4,55 @@ 
 require_once('require/class.Language.php');
 $Spotter = new Spotter();
 if (isset($_GET['start_date'])) {
-        //for the date manipulation into the query
-        if($_GET['start_date'] != "" && $_GET['end_date'] != ""){
-                $start_date = $_GET['start_date'].":00";
-                $end_date = $_GET['end_date'].":00";
-                $sql_date = $start_date.",".$end_date;
-        } else if($_GET['start_date'] != ""){
-                $start_date = $_GET['start_date'].":00";
-                $sql_date = $start_date;
-        } else if($_GET['start_date'] == "" && $_GET['end_date'] != ""){
-                $end_date = date("Y-m-d H:i:s", strtotime("2014-04-12")).",".$_GET['end_date'].":00";
-                $sql_date = $end_date;
-        } else $sql_date = '';
+		//for the date manipulation into the query
+		if($_GET['start_date'] != "" && $_GET['end_date'] != ""){
+				$start_date = $_GET['start_date'].":00";
+				$end_date = $_GET['end_date'].":00";
+				$sql_date = $start_date.",".$end_date;
+		} else if($_GET['start_date'] != ""){
+				$start_date = $_GET['start_date'].":00";
+				$sql_date = $start_date;
+		} else if($_GET['start_date'] == "" && $_GET['end_date'] != ""){
+				$end_date = date("Y-m-d H:i:s", strtotime("2014-04-12")).",".$_GET['end_date'].":00";
+				$sql_date = $end_date;
+		} else $sql_date = '';
 } else $sql_date = '';
 
 if (isset($_GET['highest_altitude'])) {
-        //for altitude manipulation
-        if($_GET['highest_altitude'] != "" && $_GET['lowest_altitude'] != ""){
-                $end_altitude = $_GET['highest_altitude'];
-                $start_altitude = $_GET['lowest_altitude'];
-                $sql_altitude = $start_altitude.",".$end_altitude;
-        } else if($_GET['highest_altitude'] != ""){
-                $end_altitude = $_GET['highest_altitude'];
-                $sql_altitude = $end_altitude;
-        } else if($_GET['highest_altitude'] == "" && $_GET['lowest_altitude'] != ""){
-                $start_altitude = $_GET['lowest_altitude'].",60000";
-                $sql_altitude = $start_altitude;
-        } else $sql_altitude = '';
+		//for altitude manipulation
+		if($_GET['highest_altitude'] != "" && $_GET['lowest_altitude'] != ""){
+				$end_altitude = $_GET['highest_altitude'];
+				$start_altitude = $_GET['lowest_altitude'];
+				$sql_altitude = $start_altitude.",".$end_altitude;
+		} else if($_GET['highest_altitude'] != ""){
+				$end_altitude = $_GET['highest_altitude'];
+				$sql_altitude = $end_altitude;
+		} else if($_GET['highest_altitude'] == "" && $_GET['lowest_altitude'] != ""){
+				$start_altitude = $_GET['lowest_altitude'].",60000";
+				$sql_altitude = $start_altitude;
+		} else $sql_altitude = '';
 } else $sql_altitude = '';
 
 //calculuation for the pagination
 if(!isset($_GET['limit']))
 {
-        if (!isset($_GET['number_results']))
-        {
-                $limit_start = 0;
-                $limit_end = 25;
-                $absolute_difference = 25;
-        } else {
-                if ($_GET['number_results'] > 1000){
-                        $_GET['number_results'] = 1000;
-                }
-                $limit_start = 0;
-                $limit_end = $_GET['number_results'];
-                $absolute_difference = $_GET['number_results'];
-        }
+		if (!isset($_GET['number_results']))
+		{
+				$limit_start = 0;
+				$limit_end = 25;
+				$absolute_difference = 25;
+		} else {
+				if ($_GET['number_results'] > 1000){
+						$_GET['number_results'] = 1000;
+				}
+				$limit_start = 0;
+				$limit_end = $_GET['number_results'];
+				$absolute_difference = $_GET['number_results'];
+		}
 }  else {
-        $limit_explode = explode(",", $_GET['limit']);
-        $limit_start = $limit_explode[0];
-        $limit_end = $limit_explode[1];
+		$limit_explode = explode(",", $_GET['limit']);
+		$limit_start = $limit_explode[0];
+		$limit_end = $limit_explode[1];
 }
 
 $absolute_difference = abs($limit_start - $limit_end);
@@ -94,70 +94,70 @@ 
   foreach($spotter_array as $spotter_item)
   {
 	   	
-    $output .= ' - id: '.$spotter_item['spotter_id'];
-    $output .= "\n";
-    $output .= ' - ident: '.$spotter_item['ident'];
-    $output .= "\n";
-    $output .= ' - registration: '.$spotter_item['registration'];
-    $output .= "\n";
-    $output .= ' - aircraft_icao: '.$spotter_item['aircraft_type'];
-    $output .= "\n";
-    $output .= ' - aircraft_name: '.$spotter_item['aircraft_name'];
-    $output .= "\n";
-    $output .= ' - aircraft_manufacturer: '.$spotter_item['aircraft_manufacturer'];
-    $output .= "\n";
-    $output .= ' - airline_name: '.$spotter_item['airline_name'];
-    $output .= "\n";
-    $output .= ' - airline_icao: '.$spotter_item['airline_icao'];
-    $output .= "\n";
-    $output .= ' - airline_iata: '.$spotter_item['airline_iata'];
-    $output .= "\n";
-    $output .= ' - airline_country: '.$spotter_item['airline_country'];
-    $output .= "\n";
-    $output .= ' - airline_callsign: '.$spotter_item['airline_callsign'];
-    $output .= "\n";
-    $output .= ' - airline_type: '.$spotter_item['airline_type'];
-    $output .= "\n";
-    $output .= ' - departure_airport_city: '.$spotter_item['departure_airport_city'];
-    $output .= "\n";
-    $output .= ' - departure_airport_country: '.$spotter_item['departure_airport_country'];
-    $output .= "\n";
-    $output .= ' - departure_airport_iata: '.$spotter_item['departure_airport_iata'];
-    $output .= "\n";
-    $output .= ' - departure_airport_icao: '.$spotter_item['departure_airport_icao'];
-    $output .= "\n";
-    $output .= ' - departure_airport_latitude: '.$spotter_item['departure_airport_latitude'];
-    $output .= "\n";
-    $output .= ' - departure_airport_altitude: '.$spotter_item['departure_airport_altitude'];
-    $output .= "\n";
-    $output .= ' - arrival_airport_city: '.$spotter_item['arrival_airport_city'];
-    $output .= "\n";
-    $output .= ' - arrival_airport_country: '.$spotter_item['arrival_airport_country'];
-    $output .= "\n";
-    $output .= ' - arrival_airport_iata: '.$spotter_item['arrival_airport_iata'];
-    $output .= "\n";
-    $output .= ' - arrival_airport_icao: '.$spotter_item['arrival_airport_icao'];
-    $output .= "\n";
-    $output .= ' - arrival_airport_latitude: '.$spotter_item['arrival_airport_latitude'];
-    $output .= "\n";
-    $output .= ' - arrival_airport_altitude: '.$spotter_item['arrival_airport_altitude'];
-    $output .= "\n";    
-    $output .= ' - latitude: '.$spotter_item['latitude'];
-    $output .= "\n";
-    $output .= ' - longitude: '.$spotter_item['longitude'];
-    $output .= "\n";
-    $output .= ' - altitude: '.$spotter_item['altitude'];
-    $output .= "\n";
-    $output .= ' - ground_speed: '.$spotter_item['ground_speed'];
-    $output .= "\n";
-    $output .= ' - heading: '.$spotter_item['heading'];
-    $output .= "\n";
-    $output .= ' - heading_name: '.$spotter_item['heading_name'];
-    $output .= "\n";
-    $output .= ' - waypoints: '.$spotter_item['waypoints'];
-    $output .= "\n";
-    $output .= ' - date: '.date("c", strtotime($spotter_item['date_iso_8601']));
-    $output .= "\n\n";
+	$output .= ' - id: '.$spotter_item['spotter_id'];
+	$output .= "\n";
+	$output .= ' - ident: '.$spotter_item['ident'];
+	$output .= "\n";
+	$output .= ' - registration: '.$spotter_item['registration'];
+	$output .= "\n";
+	$output .= ' - aircraft_icao: '.$spotter_item['aircraft_type'];
+	$output .= "\n";
+	$output .= ' - aircraft_name: '.$spotter_item['aircraft_name'];
+	$output .= "\n";
+	$output .= ' - aircraft_manufacturer: '.$spotter_item['aircraft_manufacturer'];
+	$output .= "\n";
+	$output .= ' - airline_name: '.$spotter_item['airline_name'];
+	$output .= "\n";
+	$output .= ' - airline_icao: '.$spotter_item['airline_icao'];
+	$output .= "\n";
+	$output .= ' - airline_iata: '.$spotter_item['airline_iata'];
+	$output .= "\n";
+	$output .= ' - airline_country: '.$spotter_item['airline_country'];
+	$output .= "\n";
+	$output .= ' - airline_callsign: '.$spotter_item['airline_callsign'];
+	$output .= "\n";
+	$output .= ' - airline_type: '.$spotter_item['airline_type'];
+	$output .= "\n";
+	$output .= ' - departure_airport_city: '.$spotter_item['departure_airport_city'];
+	$output .= "\n";
+	$output .= ' - departure_airport_country: '.$spotter_item['departure_airport_country'];
+	$output .= "\n";
+	$output .= ' - departure_airport_iata: '.$spotter_item['departure_airport_iata'];
+	$output .= "\n";
+	$output .= ' - departure_airport_icao: '.$spotter_item['departure_airport_icao'];
+	$output .= "\n";
+	$output .= ' - departure_airport_latitude: '.$spotter_item['departure_airport_latitude'];
+	$output .= "\n";
+	$output .= ' - departure_airport_altitude: '.$spotter_item['departure_airport_altitude'];
+	$output .= "\n";
+	$output .= ' - arrival_airport_city: '.$spotter_item['arrival_airport_city'];
+	$output .= "\n";
+	$output .= ' - arrival_airport_country: '.$spotter_item['arrival_airport_country'];
+	$output .= "\n";
+	$output .= ' - arrival_airport_iata: '.$spotter_item['arrival_airport_iata'];
+	$output .= "\n";
+	$output .= ' - arrival_airport_icao: '.$spotter_item['arrival_airport_icao'];
+	$output .= "\n";
+	$output .= ' - arrival_airport_latitude: '.$spotter_item['arrival_airport_latitude'];
+	$output .= "\n";
+	$output .= ' - arrival_airport_altitude: '.$spotter_item['arrival_airport_altitude'];
+	$output .= "\n";    
+	$output .= ' - latitude: '.$spotter_item['latitude'];
+	$output .= "\n";
+	$output .= ' - longitude: '.$spotter_item['longitude'];
+	$output .= "\n";
+	$output .= ' - altitude: '.$spotter_item['altitude'];
+	$output .= "\n";
+	$output .= ' - ground_speed: '.$spotter_item['ground_speed'];
+	$output .= "\n";
+	$output .= ' - heading: '.$spotter_item['heading'];
+	$output .= "\n";
+	$output .= ' - heading_name: '.$spotter_item['heading_name'];
+	$output .= "\n";
+	$output .= ' - waypoints: '.$spotter_item['waypoints'];
+	$output .= "\n";
+	$output .= ' - date: '.date("c", strtotime($spotter_item['date_iso_8601']));
+	$output .= "\n\n";
   }
  }
 

ident-statistics-registration.php

Indentation +2 added lines, -2 removed lines

@@ -3,8 +3,8 @@
 require_once('require/class.Spotter.php');
 require_once('require/class.Language.php');
 if (!isset($_GET['ident'])) {
-        header('Location: '.$globalURL.'/ident');
-        die();
+		header('Location: '.$globalURL.'/ident');
+		die();
 }
 $Spotter = new Spotter();
 $ident = filter_input(INPUT_GET,'ident',FILTER_SANITIZE_STRING);

sitemap.php

Indentation +107 added lines, -107 removed lines

@@ -15,9 +15,9 @@ 
 		foreach($spotter_array as $spotter_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/flightid/'.$spotter_item['spotter_id'].'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>weekly</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/flightid/'.$spotter_item['spotter_id'].'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>weekly</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -32,9 +32,9 @@ 
 		foreach($aircraft_types as $aircraft_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/aircraft/'.$aircraft_item['aircraft_icao'].'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>daily</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/aircraft/'.$aircraft_item['aircraft_icao'].'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>daily</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -49,9 +49,9 @@ 
 		foreach($aircraft_registrations as $aircraft_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/registration/'.$aircraft_item['registration'].'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>daily</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/registration/'.$aircraft_item['registration'].'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>daily</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -65,9 +65,9 @@ 
 		foreach($airline_names as $airline_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/airline/'.$airline_item['airline_icao'].'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>daily</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/airline/'.$airline_item['airline_icao'].'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>daily</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -81,9 +81,9 @@ 
 		foreach($airport_names as $airport_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/airport/'.$airport_item['airport_icao'].'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>daily</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/airport/'.$airport_item['airport_icao'].'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>daily</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -97,9 +97,9 @@ 
 		foreach($manufacturer_names as $manufacturer_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/manufacturer/'.strtolower(str_replace(" ", "-", $manufacturer_item['aircraft_manufacturer'])).'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>daily</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/manufacturer/'.strtolower(str_replace(" ", "-", $manufacturer_item['aircraft_manufacturer'])).'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>daily</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -113,9 +113,9 @@ 
 		foreach($country_names as $country_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/country/'.strtolower(str_replace(" ", "-", $country_item['country'])).'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>daily</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/country/'.strtolower(str_replace(" ", "-", $country_item['country'])).'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>daily</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -130,9 +130,9 @@ 
 		{
 			if (ctype_alnum($ident_item['ident'])) {
 				$output .= '<url>';
-				    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/ident/'.$ident_item['ident'].'</loc>';
-				    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-				    $output .= '<changefreq>daily</changefreq>';
+					$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/ident/'.$ident_item['ident'].'</loc>';
+					$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+					$output .= '<changefreq>daily</changefreq>';
 				$output .= '</url>';
 			}
 		}
@@ -147,9 +147,9 @@ 
 		foreach($date_names as $date_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/date/'.date("Y-m-d", strtotime($date_item['date'])).'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>daily</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/date/'.date("Y-m-d", strtotime($date_item['date'])).'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>daily</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -163,9 +163,9 @@ 
 		foreach($route_names as $route_item)
 		{
 			$output .= '<url>';
-			    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/route/'.$route_item['airport_departure_icao'].'/'.$route_item['airport_arrival_icao'].'</loc>';
-			    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-			    $output .= '<changefreq>daily</changefreq>';
+				$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/route/'.$route_item['airport_departure_icao'].'/'.$route_item['airport_arrival_icao'].'</loc>';
+				$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+				$output .= '<changefreq>daily</changefreq>';
 			$output .= '</url>';
 		}
 	$output .= '</urlset>';
@@ -177,117 +177,117 @@ 
 		
 		/* STATIC PAGES */
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/latest</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/latest</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/highlights</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/highlights</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/aircraft</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/aircraft</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/airline</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/airline</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/airport</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/airport</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/search</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/search</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/about</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>weekly</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/about</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>weekly</changefreq>';
 		$output .= '</url>';
 		
 		
 		/* STATISTIC PAGES */
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/aircraft</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/aircraft</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/registration</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/registration</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/manufacturer</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/manufacturer</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airline</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airline</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airline-country</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airline-country</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airport-departure</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airport-departure</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airport-departure-country</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airport-departure-country</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airport-arrival</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airport-arrival</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airport-arrival-country</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/airport-arrival-country</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/route-airport</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/route-airport</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/route-waypoint</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/route-waypoint</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/callsign</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/callsign</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/date</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/date</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 		$output .= '<url>';
-		    $output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/time</loc>';
-		    $output .= '<lastmod>'.date("c", time()).'</lastmod>';
-		    $output .= '<changefreq>daily</changefreq>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/statistics/time</loc>';
+			$output .= '<lastmod>'.date("c", time()).'</lastmod>';
+			$output .= '<changefreq>daily</changefreq>';
 		$output .= '</url>';
 	$output .= '</urlset>';
 	
@@ -297,37 +297,37 @@ 
 	$output .= '<?xml version="1.0" encoding="UTF-8"?>';
 	$output .= '<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/static</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/static</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/flight</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/flight</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/aircraft</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/aircraft</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/registration</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/registration</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/airline</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/airline</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/airport</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/airport</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/manufacturer</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/manufacturer</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/country</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/country</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/ident</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/ident</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/date</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/date</loc>';
 		$output .= '</sitemap>';
 		$output .= '<sitemap>';
-	    	$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/route</loc>';
+			$output .= '<loc>'.'http://'.$_SERVER['HTTP_HOST'].$globalURL.'/sitemap/route</loc>';
 		$output .= '</sitemap>';
 	$output .= '</sitemapindex>';
 	

archive-geojson.php

Indentation +8 added lines, -8 removed lines

@@ -9,10 +9,10 @@ 
 $Common = new Common();
 
 if (isset($_GET['download'])) {
-    if ($_GET['download'] == "true")
-    {
+	if ($_GET['download'] == "true")
+	{
 	header('Content-disposition: attachment; filename="flightairmap.json"');
-    }
+	}
 }
 header('Content-Type: text/javascript');
 
@@ -91,7 +91,7 @@ 
 				}
 
 				//waypoint plotting
-                /*
+				/*
 				$output .= '{';
 					$output .= '"type": "Feature",';
 						$output .= '"properties": {';
@@ -270,8 +270,8 @@ 
 					$output_time .= (strtotime($spotter_history['date'])*1000).',';
 				}
 				if (isset($output_time)) {
-				    $output_time  = substr($output_time, 0, -1);
-				    $output .= '"time": ['.$output_time.'],';
+					$output_time  = substr($output_time, 0, -1);
+					$output .= '"time": ['.$output_time.'],';
 				}
 
 
@@ -285,8 +285,8 @@ 
 						$output .= '"coordinates": [';
 						
 				if (isset($output_history)) {
-				    $output_history  = substr($output_history, 0, -1);
-				    $output .= $output_history;
+					$output_history  = substr($output_history, 0, -1);
+					$output .= $output_history;
 				}
 				
 						$output .= ']';

require/class.ACARS.php

Indentation +72 added lines, -72 removed lines

@@ -16,11 +16,11 @@ 
 		$this->SI = new SpotterImport($this->db);
 	}
 	/**
-	* Change IATA to ICAO value for ident
-	*
-	* @param String $ident ident
-	* @return String the icao
-	*/
+	 * Change IATA to ICAO value for ident
+	 *
+	 * @param String $ident ident
+	 * @return String the icao
+	 */
 	public function ident2icao($ident) {
 		if (substr($ident,0,2) == 'AF') {
 			if (filter_var(substr($ident,2),FILTER_VALIDATE_INT,array("flags"=>FILTER_FLAG_ALLOW_OCTAL))) $icao = $ident;
@@ -36,11 +36,11 @@ 
 	}
 
 	/**
-	* Deletes all info in the live table
-	*
-	* @return String success or false
-	*
-	*/
+	 * Deletes all info in the live table
+	 *
+	 * @return String success or false
+	 *
+	 */
 	public function deleteLiveAcarsData()
 	{
 		global $globalDBdriver;
@@ -60,11 +60,11 @@ 
 	}
 
 	/**
-	* Deletes all info in the archive table
-	*
-	* @return String success or false
-	*
-	*/
+	 * Deletes all info in the archive table
+	 *
+	 * @return String success or false
+	 *
+	 */
 	public function deleteArchiveAcarsData()
 	{
 		global $globalACARSArchiveKeepMonths, $globalDBdriver;
@@ -85,11 +85,11 @@ 
 
 
 	/**
-	* Parse ACARS data
-	*
-	* @param String ACARS data in acarsdec data
-	*
-	*/
+	 * Parse ACARS data
+	 *
+	 * @param String ACARS data in acarsdec data
+	 *
+	 */
 	public function parse($data) {
 		global $globalDebug, $globalACARSArchive;
 		//$Image = new Image($this->db);
@@ -666,11 +666,11 @@ 
 
 
 	/**
-	* Add ACARS data
-	*
-	* @param String ACARS data in acarsdec data
-	*
-	*/
+	 * Add ACARS data
+	 *
+	 * @param String ACARS data in acarsdec data
+	 *
+	 */
 	function add($data) {
 		global $globalDebug, $globalACARSArchive;
 		$Image = new Image($this->db);
@@ -725,15 +725,15 @@ 
 	}
 
 	/**
-	* Add Live ACARS data in DB
-	*
-	* @param String $ident ident
-	* @param String $registration Registration of the aircraft
-	* @param String $label Label of the ACARS message
-	* @param String $block_id Block id of the ACARS message
-	* @param String $msg_no Number of the ACARS message
-	* @param String $message ACARS message
-	*/
+	 * Add Live ACARS data in DB
+	 *
+	 * @param String $ident ident
+	 * @param String $registration Registration of the aircraft
+	 * @param String $label Label of the ACARS message
+	 * @param String $block_id Block id of the ACARS message
+	 * @param String $msg_no Number of the ACARS message
+	 * @param String $message ACARS message
+	 */
 	public function addLiveAcarsData($ident,$registration,$label,$block_id,$msg_no,$message,$decode = '') {
 		global $globalDebug;
 		date_default_timezone_set('UTC');
@@ -771,15 +771,15 @@ 
 	}
 
 	/**
-	* Add Archive ACARS data in DB
-	*
-	* @param String $ident ident
-	* @param String $registration Registration of the aircraft
-	* @param String $label Label of the ACARS message
-	* @param String $block_id Block id of the ACARS message
-	* @param String $msg_no Number of the ACARS message
-	* @param String $message ACARS message
-	*/
+	 * Add Archive ACARS data in DB
+	 *
+	 * @param String $ident ident
+	 * @param String $registration Registration of the aircraft
+	 * @param String $label Label of the ACARS message
+	 * @param String $block_id Block id of the ACARS message
+	 * @param String $msg_no Number of the ACARS message
+	 * @param String $message ACARS message
+	 */
 	public function addArchiveAcarsData($ident,$registration,$label,$block_id,$msg_no,$message,$decode = '') {
 		global $globalDebug;
 		date_default_timezone_set('UTC');
@@ -813,11 +813,11 @@ 
 	}
 
 	/**
-	* Get Message title from label from DB
-	*
-	* @param String $label
-	* @return String Return ACARS title
-	*/
+	 * Get Message title from label from DB
+	 *
+	 * @param String $label
+	 * @return String Return ACARS title
+	 */
 	public function getTitlefromLabel($label) {
 		$Connection = new Connection($this->db);
 		$this->db = $Connection->db;
@@ -837,10 +837,10 @@ 
 	}
 
 	/**
-	* List all Message title & label from DB
-	*
-	* @return Array Return ACARS data in array
-	*/
+	 * List all Message title & label from DB
+	 *
+	 * @return Array Return ACARS data in array
+	 */
 	public function getAllTitleLabel() {
 		$query = "SELECT * FROM acars_label ORDER BY title";
 		$query_values = array();
@@ -858,11 +858,11 @@ 
 	}
 
 	/**
-	* Get Live ACARS data from DB
-	*
-	* @param String $ident
-	* @return Array Return ACARS data in array
-	*/
+	 * Get Live ACARS data from DB
+	 *
+	 * @param String $ident
+	 * @return Array Return ACARS data in array
+	 */
 	public function getLiveAcarsData($ident) {
 		$query = "SELECT * FROM acars_live WHERE ident = :ident ORDER BY acars_live_id DESC";
 		$query_values = array(':ident' => $ident);
@@ -880,10 +880,10 @@ 
 	}
 
 	/**
-	* Get Latest ACARS data from DB
-	*
-	* @return Array Return ACARS data in array
-	*/
+	 * Get Latest ACARS data from DB
+	 *
+	 * @return Array Return ACARS data in array
+	 */
 	public function getLatestAcarsData($limit = '',$label = '') {
 		global $globalURL, $globalDBdriver;
 		$Image = new Image($this->db);
@@ -980,10 +980,10 @@ 
 	}
 
 	/**
-	* Get Archive ACARS data from DB
-	*
-	* @return Array Return ACARS data in array
-	*/
+	 * Get Archive ACARS data from DB
+	 *
+	 * @return Array Return ACARS data in array
+	 */
 	public function getArchiveAcarsData($limit = '',$label = '') {
 		global $globalURL, $globalDBdriver;
 		$Image = new Image($this->db);
@@ -1085,13 +1085,13 @@ 
 	}
 
 	/**
-	* Add ModeS data to DB
-	*
-	* @param String $ident ident
-	* @param String $registration Registration of the aircraft
-	* @param String $icao
-	* @param String $ICAOTypeCode
-	*/
+	 * Add ModeS data to DB
+	 *
+	 * @param String $ident ident
+	 * @param String $registration Registration of the aircraft
+	 * @param String $icao
+	 * @param String $ICAOTypeCode
+	 */
 	public function addModeSData($ident,$registration,$icao = '',$ICAOTypeCode = '',$latitude = '', $longitude = '') {
 		global $globalDebug, $globalDBdriver;
 		$ident = trim($ident);

require/class.SBS.php

Indentation +70 added lines, -70 removed lines

@@ -1,8 +1,8 @@ 
 <?php
 class SBS {
-    static $latlon = array();
+	static $latlon = array();
     
-    public function parse($buffer) {
+	public function parse($buffer) {
 	// Not yet finished, no CRC checks
 	//echo $buffer."\n";
 	$data = array();
@@ -13,47 +13,47 @@ 
 	$bin = gmp_strval( gmp_init($hex,16), 2);
 	//if (strlen($hex) == 28 && $this->parityCheck($hex,$bin)) {
 	if (strlen($hex) == 28) {
-	    $df = intval(substr($bin,0,5),2);
-	    //$ca = intval(substr($bin,5,3),2);
-	    // Only support DF17 for now
-	    //if ($df == 17 || ($df == 18 && ($ca == 0 || $ca == 1 || $ca == 6))) {
-	    if (($df == 17 || $df == 18) && ($this->parityCheck($hex,$bin) || $typehex == '@')) {
+		$df = intval(substr($bin,0,5),2);
+		//$ca = intval(substr($bin,5,3),2);
+		// Only support DF17 for now
+		//if ($df == 17 || ($df == 18 && ($ca == 0 || $ca == 1 || $ca == 6))) {
+		if (($df == 17 || $df == 18) && ($this->parityCheck($hex,$bin) || $typehex == '@')) {
 		$icao = substr($hex,2,6);
 		$data['hex'] = $icao;
 		$tc = intval(substr($bin,32,5),2);
 		if ($tc >= 1 && $tc <= 4) {
-		    //callsign
-		    $csbin = substr($bin,40,56);
-		    $charset = str_split('#ABCDEFGHIJKLMNOPQRSTUVWXYZ#####_###############0123456789######');
-		    $cs = '';
-		    $cs .= $charset[intval(substr($csbin,0,6),2)];
-		    $cs .= $charset[intval(substr($csbin,6,6),2)];
-		    $cs .= $charset[intval(substr($csbin,12,6),2)];
-		    $cs .= $charset[intval(substr($csbin,18,6),2)];
-		    $cs .= $charset[intval(substr($csbin,24,6),2)];
-		    $cs .= $charset[intval(substr($csbin,30,6),2)];
-		    $cs .= $charset[intval(substr($csbin,36,6),2)];
-		    $cs .= $charset[intval(substr($csbin,42,6),2)];
-		    $cs = str_replace('_','',$cs);
-		    $cs = str_replace('#','',$cs);
-		    $callsign = $cs;
-		    $data['ident'] = $callsign;
+			//callsign
+			$csbin = substr($bin,40,56);
+			$charset = str_split('#ABCDEFGHIJKLMNOPQRSTUVWXYZ#####_###############0123456789######');
+			$cs = '';
+			$cs .= $charset[intval(substr($csbin,0,6),2)];
+			$cs .= $charset[intval(substr($csbin,6,6),2)];
+			$cs .= $charset[intval(substr($csbin,12,6),2)];
+			$cs .= $charset[intval(substr($csbin,18,6),2)];
+			$cs .= $charset[intval(substr($csbin,24,6),2)];
+			$cs .= $charset[intval(substr($csbin,30,6),2)];
+			$cs .= $charset[intval(substr($csbin,36,6),2)];
+			$cs .= $charset[intval(substr($csbin,42,6),2)];
+			$cs = str_replace('_','',$cs);
+			$cs = str_replace('#','',$cs);
+			$callsign = $cs;
+			$data['ident'] = $callsign;
 		} elseif ($tc >= 9 && $tc <= 18) {
-		    // Check Q-bit
-		    $q = substr($bin,47,1);
-		    if ($q) {
+			// Check Q-bit
+			$q = substr($bin,47,1);
+			if ($q) {
 			$n = intval(substr($bin,40,7).substr($bin,48,4),2);
 			$alt = $n*25-1000;
 			$data['altitude'] = $alt;
-		    }
-		    // Check odd/even flag
-		    $oe = substr($bin,53,1);
-		    //if ($oe) => odd else even
-		    //  131072 is 2^17 since CPR latitude and longitude are encoded in 17 bits.
-		    $cprlat = intval(substr($bin,54,17),2)/131072.0;
-		    $cprlon = intval(substr($bin,71,17),2)/131072.0;
-		    if ($oe == 0) $this::$latlon[$icao] = array('latitude' => $cprlat,'longitude' => $cprlon,'created' => time());
-		    elseif (isset($this::$latlon[$icao]) && (time() - $this::$latlon[$icao]['created']) < 10) {
+			}
+			// Check odd/even flag
+			$oe = substr($bin,53,1);
+			//if ($oe) => odd else even
+			//  131072 is 2^17 since CPR latitude and longitude are encoded in 17 bits.
+			$cprlat = intval(substr($bin,54,17),2)/131072.0;
+			$cprlon = intval(substr($bin,71,17),2)/131072.0;
+			if ($oe == 0) $this::$latlon[$icao] = array('latitude' => $cprlat,'longitude' => $cprlon,'created' => time());
+			elseif (isset($this::$latlon[$icao]) && (time() - $this::$latlon[$icao]['created']) < 10) {
 			$cprlat_odd = $cprlat;
 			$cprlon_odd = $cprlon;
 			$cprlat_even = $this::$latlon[$icao]['latitude'];
@@ -66,53 +66,53 @@ 
 			if ($lat_odd >= 270) $lat_odd = $lat_odd - 360;
 			// check latitude zone
 			if ($this->cprNL($lat_even) == $this->cprNL($lat_odd)) {
-			    if ($this::$latlon[$icao]['created'] > time()) {
+				if ($this::$latlon[$icao]['created'] > time()) {
 				$ni = $this->cprN($lat_even,0);
 				$m = floor($cprlon_even*($this->cprNL($lat_even)-1) - $cprlon_odd * $this->cprNL($lat_even)+0.5);
 				$lon = (360.0/$ni)*($m%$ni+$cprlon_even);
 				$lat = $lat_even;
 				if ($lon > 180) $lon = $lon -360;
 				if ($lat > -91 && $lat < 91 && $lon > -181 && $lon < 181) {
-				    //if ($globalDebug) echo 'cs : '.$cs.' - hex : '.$hex.' - lat : '.$lat.' - lon : '.$lon;
-				    $data['latitude'] = $lat;
-				    $data['longitude'] = $lon;
+					//if ($globalDebug) echo 'cs : '.$cs.' - hex : '.$hex.' - lat : '.$lat.' - lon : '.$lon;
+					$data['latitude'] = $lat;
+					$data['longitude'] = $lon;
 				}
-			    } else {
+				} else {
 				$ni = $this->cprN($lat_odd,1);
 				$m = floor($cprlon_even*($this->cprNL($lat_odd)-1) - $cprlon_odd * $this->cprNL($lat_odd)+0.5);
 				$lon = (360.0/$ni)*($m%$ni+$cprlon_odd);
 				$lat = $lat_odd;
 				if ($lon > 180) $lon = $lon -360;
 				if ($lat > -91 && $lat < 91 && $lon > -181 && $lon < 181) {
-				    //if ($globalDebug) echo 'icao : '.$icao.' - hex : '.$hex.' - lat : '.$lat.' - lon : '.$lon.' second'."\n";
-				    $data['latitude'] = $lat;
-				    $data['longitude'] = $lon;
+					//if ($globalDebug) echo 'icao : '.$icao.' - hex : '.$hex.' - lat : '.$lat.' - lon : '.$lon.' second'."\n";
+					$data['latitude'] = $lat;
+					$data['longitude'] = $lon;
+				}
 				}
-			    }
 			} else echo "Not cprNL";
 			unset($this::$latlon[$icao]);
-		    }
+			}
 		} elseif ($tc == 19) {
-		    // speed & heading
-		    $v_ew_dir = intval(substr($bin,45,1));
-		    $v_ew = intval(substr($bin,46,10),2);
-		    $v_ns_dir = intval(substr($bin,56,1));
-		    $v_ns = intval(substr($bin,57,10),2);
-		    if ($v_ew_dir) $v_ew = -1*$v_ew;
-		    if ($v_ns_dir) $v_ns = -1*$v_ns;
-		    $speed = sqrt($v_ns*$v_ns+$v_ew*$v_ew);
-		    $heading = atan2($v_ew,$v_ns)*360.0/(2*pi());
-		    if ($heading <0) $heading = $heading+360;
-		    $data['speed'] = $speed;
-		    $data['heading'] = $heading;
+			// speed & heading
+			$v_ew_dir = intval(substr($bin,45,1));
+			$v_ew = intval(substr($bin,46,10),2);
+			$v_ns_dir = intval(substr($bin,56,1));
+			$v_ns = intval(substr($bin,57,10),2);
+			if ($v_ew_dir) $v_ew = -1*$v_ew;
+			if ($v_ns_dir) $v_ns = -1*$v_ns;
+			$speed = sqrt($v_ns*$v_ns+$v_ew*$v_ew);
+			$heading = atan2($v_ew,$v_ns)*360.0/(2*pi());
+			if ($heading <0) $heading = $heading+360;
+			$data['speed'] = $speed;
+			$data['heading'] = $heading;
+		}
 		}
-	    }
-	    if (isset($data)) {
+		if (isset($data)) {
 		//print_r($data);
 		return $data;
-	    }
-        }
-    }
+		}
+		}
+	}
 
 
 	public function cprNL($lat) {
@@ -177,16 +177,16 @@ 
 	if ($lat < 86.53536998) return 3;
 	if ($lat < 87.00000000) return 2;
 	return 1;
-    }
+	}
     
-    public function cprN($lat,$isodd) {
+	public function cprN($lat,$isodd) {
 	$nl = $this->cprNL($lat) - $isodd;
 	if ($nl > 1) return $nl;
 	else return 1;
-    }
+	}
 
 
-    function parityCheck($msg, $bin) {
+	function parityCheck($msg, $bin) {
 $modes_checksum_table = array(
 0x3935ea, 0x1c9af5, 0xf1b77e, 0x78dbbf, 0xc397db, 0x9e31e9, 0xb0e2f0, 0x587178,
 0x2c38bc, 0x161c5e, 0x0b0e2f, 0xfa7d13, 0x82c48d, 0xbe9842, 0x5f4c21, 0xd05c14,
@@ -208,13 +208,13 @@ 
 	$checksum = intval(substr($msg,22,6),16);
 
 	for ($j = 0; $j < strlen($bin); $j++) {
-	    if ($bin[$j]) $crc = $crc^intval($modes_checksum_table[$j],0);
+		if ($bin[$j]) $crc = $crc^intval($modes_checksum_table[$j],0);
 	}
 	if ($crc == $checksum) return true;
 	else {
-	    //echo "**** CRC ERROR ****\n";
-	    return false;
+		//echo "**** CRC ERROR ****\n";
+		return false;
+	}
 	}
-    }
 }
 ?>

require/libs/Predict/Predict.php

Indentation +791 added lines, -791 removed lines

@@ -52,824 +52,824 @@
  */
 class Predict
 {
-    const de2ra    =  1.74532925E-2;   /* Degrees to Radians */
-    const pi       =  3.1415926535898; /* Pi */
-    const pio2     =  1.5707963267949; /* Pi/2 */
-    const x3pio2   =  4.71238898;      /* 3*Pi/2 */
-    const twopi    =  6.2831853071796; /* 2*Pi  */
-    const e6a      =  1.0E-6;
-    const tothrd   =  6.6666667E-1;    /* 2/3 */
-    const xj2      =  1.0826158E-3;    /* J2 Harmonic */
-    const xj3      = -2.53881E-6;      /* J3 Harmonic */
-    const xj4      = -1.65597E-6;      /* J4 Harmonic */
-    const xke      =  7.43669161E-2;
-    const xkmper   =  6.378135E3;      /* Earth radius km */
-    const xmnpda   =  1.44E3;          /* Minutes per day */
-    const km2mi    =  0.621371;        /* Kilometers per Mile */
-    const ae       =  1.0;
-    const ck2      =  5.413079E-4;
-    const ck4      =  6.209887E-7;
-    const __f      =  3.352779E-3;
-    const ge       =  3.986008E5;
-    const __s__    =  1.012229;
-    const qoms2t   =  1.880279E-09;
-    const secday   =  8.6400E4;        /* Seconds per day */
-    const omega_E  =  1.0027379;
-    const omega_ER =  6.3003879;
-    const zns      =  1.19459E-5;
-    const c1ss     =  2.9864797E-6;
-    const zes      =  1.675E-2;
-    const znl      =  1.5835218E-4;
-    const c1l      =  4.7968065E-7;
-    const zel      =  5.490E-2;
-    const zcosis   =  9.1744867E-1;
-    const zsinis   =  3.9785416E-1;
-    const zsings   = -9.8088458E-1;
-    const zcosgs   =  1.945905E-1;
-    const zcoshs   =  1;
-    const zsinhs   =  0;
-    const q22      =  1.7891679E-6;
-    const q31      =  2.1460748E-6;
-    const q33      =  2.2123015E-7;
-    const g22      =  5.7686396;
-    const g32      =  9.5240898E-1;
-    const g44      =  1.8014998;
-    const g52      =  1.0508330;
-    const g54      =  4.4108898;
-    const root22   =  1.7891679E-6;
-    const root32   =  3.7393792E-7;
-    const root44   =  7.3636953E-9;
-    const root52   =  1.1428639E-7;
-    const root54   =  2.1765803E-9;
-    const thdt     =  4.3752691E-3;
-    const rho      =  1.5696615E-1;
-    const mfactor  =  7.292115E-5;
-    const __sr__   =  6.96000E5;      /*Solar radius - kilometers (IAU 76)*/
-    const AU       =  1.49597870E8;   /*Astronomical unit - kilometers (IAU 76)*/
-
-    /* visibility constants */
-    const SAT_VIS_NONE     = 0;
-    const SAT_VIS_VISIBLE  = 1;
-    const SAT_VIS_DAYLIGHT = 2;
-    const SAT_VIS_ECLIPSED = 3;
-
-    /* preferences */
-    public $minEle     = 10; // Minimum elevation
-    public $timeRes    = 10; // Pass details: time resolution
-    public $numEntries = 20; // Pass details: number of entries
-    public $threshold  = -6; // Twilight threshold
-
-    /**
-     *  Predict the next pass.
-     *
-     * This function simply wraps the get_pass function using the current time
-     * as parameter.
-     *
-     * Note: the data in sat will be corrupt (future) and must be refreshed
-     *       by the caller, if the caller will need it later on (eg. if the caller
-     *       is GtkSatList).
-     *
-     * @param Predict_Sat $sat   The satellite data.
-     * @param Predict_QTH $qth   The observer data.
-     * @param int         $maxdt The maximum number of days to look ahead.
-     *
-     * @return Predict_Pass Pointer instance or NULL if no pass can be
-     *         found.
-     */
-    public function get_next_pass(Predict_Sat $sat, Predict_QTH $qth, $maxdt)
-    {
-        /* get the current time and call the get_pass function */
-        $now = Predict_Time::get_current_daynum();
-
-        return $this->get_pass($sat, $qth, $now, $maxdt);
-    }
-
-    /** Predict first pass after a certain time.
-     *
-     *  @param Predict_Sat $sat   The satellite data.
-     *  @param Predict_QTH $qth   The observer's location data.
-     *  @param float       $start Starting time.
-     *  @param int         $maxdt The maximum number of days to look ahead (0 for no limit).
-     *
-     *  @return Predict_Pass or NULL if there was an error.
-     *
-     * This function will find the first upcoming pass with AOS no earlier than
-     * t = start and no later than t = (start+maxdt).
-     *
-     *  note For no time limit use maxdt = 0.0
-     *
-     *  note the data in sat will be corrupt (future) and must be refreshed
-     *       by the caller, if the caller will need it later on
-     */
-    public function get_pass(Predict_Sat $sat_in, Predict_QTH $qth, $start, $maxdt)
-    {
-        $aos = 0.0;    /* time of AOS */
-        $tca = 0.0;    /* time of TCA */
-        $los = 0.0;    /* time of LOS */
-        $dt = 0.0;     /* time diff */
-        $step = 0.0;   /* time step */
-        $t0 = $start;
-        $tres = 0.0;   /* required time resolution */
-        $max_el = 0.0; /* maximum elevation */
-        $pass = null;
-        $detail = null;
-        $done = false;
-        $iter = 0;      /* number of iterations */
-        /* FIXME: watchdog */
-
-        /*copy sat_in to a working structure*/
-        $sat         = clone $sat_in;
-        $sat_working = clone $sat_in;
-
-        /* get time resolution; sat-cfg stores it in seconds */
-        $tres = $this->timeRes / 86400.0;
-
-        /* loop until we find a pass with elevation > SAT_CFG_INT_PRED_MIN_EL
+	const de2ra    =  1.74532925E-2;   /* Degrees to Radians */
+	const pi       =  3.1415926535898; /* Pi */
+	const pio2     =  1.5707963267949; /* Pi/2 */
+	const x3pio2   =  4.71238898;      /* 3*Pi/2 */
+	const twopi    =  6.2831853071796; /* 2*Pi  */
+	const e6a      =  1.0E-6;
+	const tothrd   =  6.6666667E-1;    /* 2/3 */
+	const xj2      =  1.0826158E-3;    /* J2 Harmonic */
+	const xj3      = -2.53881E-6;      /* J3 Harmonic */
+	const xj4      = -1.65597E-6;      /* J4 Harmonic */
+	const xke      =  7.43669161E-2;
+	const xkmper   =  6.378135E3;      /* Earth radius km */
+	const xmnpda   =  1.44E3;          /* Minutes per day */
+	const km2mi    =  0.621371;        /* Kilometers per Mile */
+	const ae       =  1.0;
+	const ck2      =  5.413079E-4;
+	const ck4      =  6.209887E-7;
+	const __f      =  3.352779E-3;
+	const ge       =  3.986008E5;
+	const __s__    =  1.012229;
+	const qoms2t   =  1.880279E-09;
+	const secday   =  8.6400E4;        /* Seconds per day */
+	const omega_E  =  1.0027379;
+	const omega_ER =  6.3003879;
+	const zns      =  1.19459E-5;
+	const c1ss     =  2.9864797E-6;
+	const zes      =  1.675E-2;
+	const znl      =  1.5835218E-4;
+	const c1l      =  4.7968065E-7;
+	const zel      =  5.490E-2;
+	const zcosis   =  9.1744867E-1;
+	const zsinis   =  3.9785416E-1;
+	const zsings   = -9.8088458E-1;
+	const zcosgs   =  1.945905E-1;
+	const zcoshs   =  1;
+	const zsinhs   =  0;
+	const q22      =  1.7891679E-6;
+	const q31      =  2.1460748E-6;
+	const q33      =  2.2123015E-7;
+	const g22      =  5.7686396;
+	const g32      =  9.5240898E-1;
+	const g44      =  1.8014998;
+	const g52      =  1.0508330;
+	const g54      =  4.4108898;
+	const root22   =  1.7891679E-6;
+	const root32   =  3.7393792E-7;
+	const root44   =  7.3636953E-9;
+	const root52   =  1.1428639E-7;
+	const root54   =  2.1765803E-9;
+	const thdt     =  4.3752691E-3;
+	const rho      =  1.5696615E-1;
+	const mfactor  =  7.292115E-5;
+	const __sr__   =  6.96000E5;      /*Solar radius - kilometers (IAU 76)*/
+	const AU       =  1.49597870E8;   /*Astronomical unit - kilometers (IAU 76)*/
+
+	/* visibility constants */
+	const SAT_VIS_NONE     = 0;
+	const SAT_VIS_VISIBLE  = 1;
+	const SAT_VIS_DAYLIGHT = 2;
+	const SAT_VIS_ECLIPSED = 3;
+
+	/* preferences */
+	public $minEle     = 10; // Minimum elevation
+	public $timeRes    = 10; // Pass details: time resolution
+	public $numEntries = 20; // Pass details: number of entries
+	public $threshold  = -6; // Twilight threshold
+
+	/**
+	 *  Predict the next pass.
+	 *
+	 * This function simply wraps the get_pass function using the current time
+	 * as parameter.
+	 *
+	 * Note: the data in sat will be corrupt (future) and must be refreshed
+	 *       by the caller, if the caller will need it later on (eg. if the caller
+	 *       is GtkSatList).
+	 *
+	 * @param Predict_Sat $sat   The satellite data.
+	 * @param Predict_QTH $qth   The observer data.
+	 * @param int         $maxdt The maximum number of days to look ahead.
+	 *
+	 * @return Predict_Pass Pointer instance or NULL if no pass can be
+	 *         found.
+	 */
+	public function get_next_pass(Predict_Sat $sat, Predict_QTH $qth, $maxdt)
+	{
+		/* get the current time and call the get_pass function */
+		$now = Predict_Time::get_current_daynum();
+
+		return $this->get_pass($sat, $qth, $now, $maxdt);
+	}
+
+	/** Predict first pass after a certain time.
+	 *
+	 *  @param Predict_Sat $sat   The satellite data.
+	 *  @param Predict_QTH $qth   The observer's location data.
+	 *  @param float       $start Starting time.
+	 *  @param int         $maxdt The maximum number of days to look ahead (0 for no limit).
+	 *
+	 *  @return Predict_Pass or NULL if there was an error.
+	 *
+	 * This function will find the first upcoming pass with AOS no earlier than
+	 * t = start and no later than t = (start+maxdt).
+	 *
+	 *  note For no time limit use maxdt = 0.0
+	 *
+	 *  note the data in sat will be corrupt (future) and must be refreshed
+	 *       by the caller, if the caller will need it later on
+	 */
+	public function get_pass(Predict_Sat $sat_in, Predict_QTH $qth, $start, $maxdt)
+	{
+		$aos = 0.0;    /* time of AOS */
+		$tca = 0.0;    /* time of TCA */
+		$los = 0.0;    /* time of LOS */
+		$dt = 0.0;     /* time diff */
+		$step = 0.0;   /* time step */
+		$t0 = $start;
+		$tres = 0.0;   /* required time resolution */
+		$max_el = 0.0; /* maximum elevation */
+		$pass = null;
+		$detail = null;
+		$done = false;
+		$iter = 0;      /* number of iterations */
+		/* FIXME: watchdog */
+
+		/*copy sat_in to a working structure*/
+		$sat         = clone $sat_in;
+		$sat_working = clone $sat_in;
+
+		/* get time resolution; sat-cfg stores it in seconds */
+		$tres = $this->timeRes / 86400.0;
+
+		/* loop until we find a pass with elevation > SAT_CFG_INT_PRED_MIN_EL
             or we run out of time
             FIXME: we should have a safety break
         */
-        while (!$done) {
-            /* Find los of next pass or of current pass */
-            $los = $this->find_los($sat, $qth, $t0, $maxdt); // See if a pass is ongoing
-            $aos = $this->find_aos($sat, $qth, $t0, $maxdt);
-            /* sat_log_log(SAT_LOG_LEVEL_MSG, "%s:%s:%d: found aos %f and los %f for t0=%f", */
-            /*          __FILE__,  */
-            /*          __FUNCTION__, */
-            /*          __LINE__, */
-            /*          aos, */
-            /*          los,  */
-            /*          t0); */
-            if ($aos > $los) {
-                // los is from an currently happening pass, find previous aos
-                $aos = $this->find_prev_aos($sat, $qth, $t0);
-            }
-
-            /* aos = 0.0 means no aos */
-            if ($aos == 0.0) {
-                $done = true;
-            } else if (($maxdt > 0.0) && ($aos > ($start + $maxdt)) ) {
-                /* check whether we are within time limits;
+		while (!$done) {
+			/* Find los of next pass or of current pass */
+			$los = $this->find_los($sat, $qth, $t0, $maxdt); // See if a pass is ongoing
+			$aos = $this->find_aos($sat, $qth, $t0, $maxdt);
+			/* sat_log_log(SAT_LOG_LEVEL_MSG, "%s:%s:%d: found aos %f and los %f for t0=%f", */
+			/*          __FILE__,  */
+			/*          __FUNCTION__, */
+			/*          __LINE__, */
+			/*          aos, */
+			/*          los,  */
+			/*          t0); */
+			if ($aos > $los) {
+				// los is from an currently happening pass, find previous aos
+				$aos = $this->find_prev_aos($sat, $qth, $t0);
+			}
+
+			/* aos = 0.0 means no aos */
+			if ($aos == 0.0) {
+				$done = true;
+			} else if (($maxdt > 0.0) && ($aos > ($start + $maxdt)) ) {
+				/* check whether we are within time limits;
                     maxdt = 0 mean no time limit.
                 */
-                $done = true;
-            } else {
-                //los = find_los (sat, qth, aos + 0.001, maxdt); // +1.5 min later
-                $dt = $los - $aos;
+				$done = true;
+			} else {
+				//los = find_los (sat, qth, aos + 0.001, maxdt); // +1.5 min later
+				$dt = $los - $aos;
 
-                /* get time step, which will give us the max number of entries */
-                $step = $dt / $this->numEntries;
+				/* get time step, which will give us the max number of entries */
+				$step = $dt / $this->numEntries;
 
-                /* but if this is smaller than the required resolution
+				/* but if this is smaller than the required resolution
                     we go with the resolution
                 */
-                if ($step < $tres) {
-                    $step = $tres;
-                }
-
-                /* create a pass_t entry; FIXME: g_try_new in 2.8 */
-                $pass = new Predict_Pass();
-
-                $pass->aos      = $aos;
-                $pass->los      = $los;
-                $pass->max_el   = 0.0;
-                $pass->aos_az   = 0.0;
-                $pass->los_az   = 0.0;
-                $pass->maxel_az = 0.0;
-                $pass->vis      = '---';
-                $pass->satname  = $sat->nickname;
-                $pass->details  = array();
-
-                /* iterate over each time step */
-                for ($t = $pass->aos; $t <= $pass->los; $t += $step) {
-
-                    /* calculate satellite data */
-                    $this->predict_calc($sat, $qth, $t);
-
-                    /* in the first iter we want to store
+				if ($step < $tres) {
+					$step = $tres;
+				}
+
+				/* create a pass_t entry; FIXME: g_try_new in 2.8 */
+				$pass = new Predict_Pass();
+
+				$pass->aos      = $aos;
+				$pass->los      = $los;
+				$pass->max_el   = 0.0;
+				$pass->aos_az   = 0.0;
+				$pass->los_az   = 0.0;
+				$pass->maxel_az = 0.0;
+				$pass->vis      = '---';
+				$pass->satname  = $sat->nickname;
+				$pass->details  = array();
+
+				/* iterate over each time step */
+				for ($t = $pass->aos; $t <= $pass->los; $t += $step) {
+
+					/* calculate satellite data */
+					$this->predict_calc($sat, $qth, $t);
+
+					/* in the first iter we want to store
                         pass->aos_az
                     */
-                    if ($t == $pass->aos) {
-                        $pass->aos_az = $sat->az;
-                        $pass->orbit  = $sat->orbit;
-                    }
-
-                    /* append details to sat->details */
-                    $detail             = new Predict_PassDetail();
-                    $detail->time       = $t;
-                    $detail->pos->x     = $sat->pos->x;
-                    $detail->pos->y     = $sat->pos->y;
-                    $detail->pos->z     = $sat->pos->z;
-                    $detail->pos->w     = $sat->pos->w;
-                    $detail->vel->x     = $sat->vel->x;
-                    $detail->vel->y     = $sat->vel->y;
-                    $detail->vel->z     = $sat->vel->z;
-                    $detail->vel->w     = $sat->vel->w;
-                    $detail->velo       = $sat->velo;
-                    $detail->az         = $sat->az;
-                    $detail->el         = $sat->el;
-                    $detail->range      = $sat->range;
-                    $detail->range_rate = $sat->range_rate;
-                    $detail->lat        = $sat->ssplat;
-                    $detail->lon        = $sat->ssplon;
-                    $detail->alt        = $sat->alt;
-                    $detail->ma         = $sat->ma;
-                    $detail->phase      = $sat->phase;
-                    $detail->footprint  = $sat->footprint;
-                    $detail->orbit      = $sat->orbit;
-                    $detail->vis        = $this->get_sat_vis($sat, $qth, $t);
-
-                    /* also store visibility "bit" */
-                    switch ($detail->vis) {
-                        case self::SAT_VIS_VISIBLE:
-                            $pass->vis[0] = 'V';
-                            break;
-                        case self::SAT_VIS_DAYLIGHT:
-                            $pass->vis[1] = 'D';
-                            break;
-                        case self::SAT_VIS_ECLIPSED:
-                            $pass->vis[2] = 'E';
-                            break;
-                        default:
-                            break;
-                    }
-
-                    // Using an array, no need to prepend and reverse the list
-                    // as gpredict does
-                    $pass->details[] = $detail;
-
-                    // Look up apparent magnitude if this is a visible pass
-                    if ($detail->vis === self::SAT_VIS_VISIBLE) {
-                        $apmag = $sat->calculateApparentMagnitude($t, $qth);
-                        if ($pass->max_apparent_magnitude === null || $apmag < $pass->max_apparent_magnitude) {
-                            $pass->max_apparent_magnitude = $apmag;
-                        }
-                    }
-
-                    /* store elevation if greater than the
+					if ($t == $pass->aos) {
+						$pass->aos_az = $sat->az;
+						$pass->orbit  = $sat->orbit;
+					}
+
+					/* append details to sat->details */
+					$detail             = new Predict_PassDetail();
+					$detail->time       = $t;
+					$detail->pos->x     = $sat->pos->x;
+					$detail->pos->y     = $sat->pos->y;
+					$detail->pos->z     = $sat->pos->z;
+					$detail->pos->w     = $sat->pos->w;
+					$detail->vel->x     = $sat->vel->x;
+					$detail->vel->y     = $sat->vel->y;
+					$detail->vel->z     = $sat->vel->z;
+					$detail->vel->w     = $sat->vel->w;
+					$detail->velo       = $sat->velo;
+					$detail->az         = $sat->az;
+					$detail->el         = $sat->el;
+					$detail->range      = $sat->range;
+					$detail->range_rate = $sat->range_rate;
+					$detail->lat        = $sat->ssplat;
+					$detail->lon        = $sat->ssplon;
+					$detail->alt        = $sat->alt;
+					$detail->ma         = $sat->ma;
+					$detail->phase      = $sat->phase;
+					$detail->footprint  = $sat->footprint;
+					$detail->orbit      = $sat->orbit;
+					$detail->vis        = $this->get_sat_vis($sat, $qth, $t);
+
+					/* also store visibility "bit" */
+					switch ($detail->vis) {
+						case self::SAT_VIS_VISIBLE:
+							$pass->vis[0] = 'V';
+							break;
+						case self::SAT_VIS_DAYLIGHT:
+							$pass->vis[1] = 'D';
+							break;
+						case self::SAT_VIS_ECLIPSED:
+							$pass->vis[2] = 'E';
+							break;
+						default:
+							break;
+					}
+
+					// Using an array, no need to prepend and reverse the list
+					// as gpredict does
+					$pass->details[] = $detail;
+
+					// Look up apparent magnitude if this is a visible pass
+					if ($detail->vis === self::SAT_VIS_VISIBLE) {
+						$apmag = $sat->calculateApparentMagnitude($t, $qth);
+						if ($pass->max_apparent_magnitude === null || $apmag < $pass->max_apparent_magnitude) {
+							$pass->max_apparent_magnitude = $apmag;
+						}
+					}
+
+					/* store elevation if greater than the
                         previously stored one
                     */
-                    if ($sat->el > $max_el) {
-                        $max_el         = $sat->el;
-                        $tca            = $t;
-                        $pass->maxel_az = $sat->az;
-                    }
-
-                    /*     g_print ("TIME: %f\tAZ: %f\tEL: %f (MAX: %f)\n", */
-                    /*           t, sat->az, sat->el, max_el); */
-                }
-
-                /* calculate satellite data */
-                $this->predict_calc($sat, $qth, $pass->los);
-                /* store los_az, max_el and tca */
-                $pass->los_az = $sat->az;
-                $pass->max_el = $max_el;
-                $pass->tca    = $tca;
-
-                /* check whether this pass is good */
-                if ($max_el >= $this->minEle) {
-                    $done = true;
-                } else {
-                    $done = false;
-                    $t0 = $los + 0.014; // +20 min
-                    $pass = null;
-                }
-
-                $iter++;
-            }
-        }
-
-        return $pass;
-    }
-
-    /**
-     * Calculate satellite visibility.
-     *
-     * @param Predict_Sat $sat     The satellite structure.
-     * @param Predict_QTH $qth     The QTH
-     * @param float       $jul_utc The time at which the visibility should be calculated.
-     *
-     * @return int The visiblity constant, 0, 1, 2, or 3 (see above)
-     */
-    public function get_sat_vis(Predict_Sat $sat, Predict_QTH $qth, $jul_utc)
-    {
-        /* gboolean sat_sun_status;
+					if ($sat->el > $max_el) {
+						$max_el         = $sat->el;
+						$tca            = $t;
+						$pass->maxel_az = $sat->az;
+					}
+
+					/*     g_print ("TIME: %f\tAZ: %f\tEL: %f (MAX: %f)\n", */
+					/*           t, sat->az, sat->el, max_el); */
+				}
+
+				/* calculate satellite data */
+				$this->predict_calc($sat, $qth, $pass->los);
+				/* store los_az, max_el and tca */
+				$pass->los_az = $sat->az;
+				$pass->max_el = $max_el;
+				$pass->tca    = $tca;
+
+				/* check whether this pass is good */
+				if ($max_el >= $this->minEle) {
+					$done = true;
+				} else {
+					$done = false;
+					$t0 = $los + 0.014; // +20 min
+					$pass = null;
+				}
+
+				$iter++;
+			}
+		}
+
+		return $pass;
+	}
+
+	/**
+	 * Calculate satellite visibility.
+	 *
+	 * @param Predict_Sat $sat     The satellite structure.
+	 * @param Predict_QTH $qth     The QTH
+	 * @param float       $jul_utc The time at which the visibility should be calculated.
+	 *
+	 * @return int The visiblity constant, 0, 1, 2, or 3 (see above)
+	 */
+	public function get_sat_vis(Predict_Sat $sat, Predict_QTH $qth, $jul_utc)
+	{
+		/* gboolean sat_sun_status;
         gdouble  sun_el;
         gdouble  threshold;
         gdouble  eclipse_depth;
         sat_vis_t vis = SAT_VIS_NONE; */
 
-        $eclipse_depth  = 0.0;
-        $zero_vector    = new Predict_Vector();
-        $obs_geodetic   = new Predict_Geodetic();
-
-        /* Solar ECI position vector  */
-        $solar_vector = new Predict_Vector();
-
-        /* Solar observed az and el vector  */
-        $solar_set = new Predict_ObsSet();
-
-        /* FIXME: could be passed as parameter */
-        $obs_geodetic->lon   = $qth->lon * self::de2ra;
-        $obs_geodetic->lat   = $qth->lat * self::de2ra;
-        $obs_geodetic->alt   = $qth->alt / 1000.0;
-        $obs_geodetic->theta = 0;
-
-        Predict_Solar::Calculate_Solar_Position($jul_utc, $solar_vector);
-        Predict_SGPObs::Calculate_Obs($jul_utc, $solar_vector, $zero_vector, $obs_geodetic, $solar_set);
-
-        if (Predict_Solar::Sat_Eclipsed($sat->pos, $solar_vector, $eclipse_depth)) {
-            /* satellite is eclipsed */
-            $sat_sun_status = false;
-        } else {
-            /* satellite in sunlight => may be visible */
-            $sat_sun_status = true;
-        }
-
-        if ($sat_sun_status) {
-            $sun_el = Predict_Math::Degrees($solar_set->el);
-
-            if ($sun_el <= $this->threshold && $sat->el >= 0.0) {
-                $vis = self::SAT_VIS_VISIBLE;
-            } else {
-                $vis = self::SAT_VIS_DAYLIGHT;
-            }
-        } else {
-            $vis = self::SAT_VIS_ECLIPSED;
-        }
-
-        return $vis;
-    }
-
-    /** Find the AOS time of the next pass.
-     *  @author Alexandru Csete, OZ9AEC
-     *  @author John A. Magliacane, KD2BD
-     *  @param Predict_Sat $sat   The satellite data.
-     *  @param Predict_QTH $qth   The observer's location (QTH) data.
-     *  @param float       $start The julian date where calculation should start.
-     *  @param int         $maxdt The upper time limit in days (0.0 = no limit)
-     *  @return The julain date of the next AOS or 0.0 if the satellite has no AOS.
-     *
-     * This function finds the time of AOS for the first coming pass taking place
-     * no earlier that start.
-     * If the satellite is currently within range, the function first calls
-     * find_los to get the next LOS time. Then the calculations are done using
-     * the new start time.
-     *
-     */
-    public function find_aos(Predict_Sat $sat, Predict_QTH $qth, $start, $maxdt)
-    {
-        $t = $start;
-        $aostime = 0.0;
-
-
-        /* make sure current sat values are
+		$eclipse_depth  = 0.0;
+		$zero_vector    = new Predict_Vector();
+		$obs_geodetic   = new Predict_Geodetic();
+
+		/* Solar ECI position vector  */
+		$solar_vector = new Predict_Vector();
+
+		/* Solar observed az and el vector  */
+		$solar_set = new Predict_ObsSet();
+
+		/* FIXME: could be passed as parameter */
+		$obs_geodetic->lon   = $qth->lon * self::de2ra;
+		$obs_geodetic->lat   = $qth->lat * self::de2ra;
+		$obs_geodetic->alt   = $qth->alt / 1000.0;
+		$obs_geodetic->theta = 0;
+
+		Predict_Solar::Calculate_Solar_Position($jul_utc, $solar_vector);
+		Predict_SGPObs::Calculate_Obs($jul_utc, $solar_vector, $zero_vector, $obs_geodetic, $solar_set);
+
+		if (Predict_Solar::Sat_Eclipsed($sat->pos, $solar_vector, $eclipse_depth)) {
+			/* satellite is eclipsed */
+			$sat_sun_status = false;
+		} else {
+			/* satellite in sunlight => may be visible */
+			$sat_sun_status = true;
+		}
+
+		if ($sat_sun_status) {
+			$sun_el = Predict_Math::Degrees($solar_set->el);
+
+			if ($sun_el <= $this->threshold && $sat->el >= 0.0) {
+				$vis = self::SAT_VIS_VISIBLE;
+			} else {
+				$vis = self::SAT_VIS_DAYLIGHT;
+			}
+		} else {
+			$vis = self::SAT_VIS_ECLIPSED;
+		}
+
+		return $vis;
+	}
+
+	/** Find the AOS time of the next pass.
+	 *  @author Alexandru Csete, OZ9AEC
+	 *  @author John A. Magliacane, KD2BD
+	 *  @param Predict_Sat $sat   The satellite data.
+	 *  @param Predict_QTH $qth   The observer's location (QTH) data.
+	 *  @param float       $start The julian date where calculation should start.
+	 *  @param int         $maxdt The upper time limit in days (0.0 = no limit)
+	 *  @return The julain date of the next AOS or 0.0 if the satellite has no AOS.
+	 *
+	 * This function finds the time of AOS for the first coming pass taking place
+	 * no earlier that start.
+	 * If the satellite is currently within range, the function first calls
+	 * find_los to get the next LOS time. Then the calculations are done using
+	 * the new start time.
+	 *
+	 */
+	public function find_aos(Predict_Sat $sat, Predict_QTH $qth, $start, $maxdt)
+	{
+		$t = $start;
+		$aostime = 0.0;
+
+
+		/* make sure current sat values are
             in sync with the time
         */
-        $this->predict_calc($sat, $qth, $start);
-
-        /* check whether satellite has aos */
-        if (($sat->otype == Predict_SGPSDP::ORBIT_TYPE_GEO) ||
-            ($sat->otype == Predict_SGPSDP::ORBIT_TYPE_DECAYED) ||
-            !$this->has_aos($sat, $qth)) {
-
-            return 0.0;
-        }
-
-        if ($sat->el > 0.0) {
-            $t = $this->find_los($sat, $qth, $start, $maxdt) + 0.014; // +20 min
-        }
-
-        /* invalid time (potentially returned by find_los) */
-        if ($t < 0.1) {
-            return 0.0;
-        }
-
-        /* update satellite data */
-        $this->predict_calc($sat, $qth, $t);
-
-        /* use upper time limit */
-        if ($maxdt > 0.0) {
-
-            /* coarse time steps */
-            while (($sat->el < -1.0) && ($t <= ($start + $maxdt))) {
-                $t -= 0.00035 * ($sat->el * (($sat->alt / 8400.0) + 0.46) - 2.0);
-                $this->predict_calc($sat, $qth, $t);
-            }
-
-            /* fine steps */
-            while (($aostime == 0.0) && ($t <= ($start + $maxdt))) {
-
-                if (abs($sat->el) < 0.005) {
-                    $aostime = $t;
-                } else {
-                    $t -= $sat->el * sqrt($sat->alt) / 530000.0;
-                    $this->predict_calc($sat, $qth, $t);
-                }
-            }
-        } else {
-            /* don't use upper time limit */
-
-            /* coarse time steps */
-            while ($sat->el < -1.0) {
-
-                $t -= 0.00035 * ($sat->el * (($sat->alt / 8400.0) + 0.46) - 2.0);
-                $this->predict_calc($sat, $qth, $t);
-            }
-
-            /* fine steps */
-            while ($aostime == 0.0) {
-
-                if (abs($sat->el) < 0.005) {
-                    $aostime = $t;
-                } else {
-                    $t -= $sat->el * sqrt($sat->alt) / 530000.0;
-                    $this->predict_calc($sat, $qth, $t);
-                }
-
-            }
-        }
-
-        return $aostime;
-    }
-
-    /** SGP4SDP4 driver for doing AOS/LOS calculations.
-     *  @param Predict_Sat $sat The satellite data.
-     *  @param Predict_QTH $qth The QTH observer location data.
-     *  @param float       $t   The time for calculation (Julian Date)
-     *
-     */
-    public function predict_calc(Predict_Sat $sat, Predict_QTH $qth, $t)
-    {
-        $obs_set      = new Predict_ObsSet();
-        $sat_geodetic = new Predict_Geodetic();
-        $obs_geodetic = new Predict_Geodetic();
-
-        $obs_geodetic->lon   = $qth->lon * self::de2ra;
-        $obs_geodetic->lat   = $qth->lat * self::de2ra;
-        $obs_geodetic->alt   = $qth->alt / 1000.0;
-        $obs_geodetic->theta = 0;
-
-        $sat->jul_utc = $t;
-        $sat->tsince = ($sat->jul_utc - $sat->jul_epoch) * self::xmnpda;
-
-        /* call the norad routines according to the deep-space flag */
-        $sgpsdp = Predict_SGPSDP::getInstance($sat);
-        if ($sat->flags & Predict_SGPSDP::DEEP_SPACE_EPHEM_FLAG) {
-            $sgpsdp->SDP4($sat, $sat->tsince);
-        } else {
-            $sgpsdp->SGP4($sat, $sat->tsince);
-        }
-
-        Predict_Math::Convert_Sat_State($sat->pos, $sat->vel);
-
-        /* get the velocity of the satellite */
-        $sat->vel->w = sqrt($sat->vel->x * $sat->vel->x + $sat->vel->y * $sat->vel->y + $sat->vel->z * $sat->vel->z);
-        $sat->velo = $sat->vel->w;
-        Predict_SGPObs::Calculate_Obs($sat->jul_utc, $sat->pos, $sat->vel, $obs_geodetic, $obs_set);
-        Predict_SGPObs::Calculate_LatLonAlt($sat->jul_utc, $sat->pos, $sat_geodetic);
-
-        while ($sat_geodetic->lon < -self::pi) {
-            $sat_geodetic->lon += self::twopi;
-        }
-
-        while ($sat_geodetic->lon > (self::pi)) {
-            $sat_geodetic->lon -= self::twopi;
-        }
-
-        $sat->az = Predict_Math::Degrees($obs_set->az);
-        $sat->el = Predict_Math::Degrees($obs_set->el);
-        $sat->range = $obs_set->range;
-        $sat->range_rate = $obs_set->range_rate;
-        $sat->ssplat = Predict_Math::Degrees($sat_geodetic->lat);
-        $sat->ssplon = Predict_Math::Degrees($sat_geodetic->lon);
-        $sat->alt = $sat_geodetic->alt;
-        $sat->ma = Predict_Math::Degrees($sat->phase);
-        $sat->ma *= 256.0 / 360.0;
-        $sat->phase = Predict_Math::Degrees($sat->phase);
-
-        /* same formulas, but the one from predict is nicer */
-        //sat->footprint = 2.0 * xkmper * acos (xkmper/sat->pos.w);
-        $sat->footprint = 12756.33 * acos(self::xkmper / (self::xkmper + $sat->alt));
-        $age = $sat->jul_utc - $sat->jul_epoch;
-        $sat->orbit = floor(($sat->tle->xno * self::xmnpda / self::twopi +
-                        $age * $sat->tle->bstar * self::ae) * $age +
-                        $sat->tle->xmo / self::twopi) + $sat->tle->revnum - 1;
-    }
-
-    /** Find the LOS time of the next pass.
-     *  @author Alexandru Csete, OZ9AEC
-     *  @author John A. Magliacane, KD2BD
-     *  @param Predict_Sat $sat The satellite data.
-     *  @param Predict_QTH $qth The QTH observer location data.
-     *  @param float       $start The time where calculation should start. (Julian Date)
-     *  @param int         $maxdt The upper time limit in days (0.0 = no limit)
-     *  @return The time (julian date) of the next LOS or 0.0 if the satellite has no LOS.
-     *
-     * This function finds the time of LOS for the first coming pass taking place
-     * no earlier that start.
-     * If the satellite is currently out of range, the function first calls
-     * find_aos to get the next AOS time. Then the calculations are done using
-     * the new start time.
-     * The function has a built-in watchdog to ensure that we don't end up in
-     * lengthy loops.
-     *
-     */
-    public function find_los(Predict_Sat $sat, Predict_QTH $qth, $start, $maxdt)
-    {
-        $t = $start;
-        $lostime = 0.0;
-
-
-        $this->predict_calc($sat, $qth, $start);
-
-        /* check whether satellite has aos */
-        if (($sat->otype == Predict_SGPSDP::ORBIT_TYPE_GEO) ||
-            ($sat->otype == Predict_SGPSDP::ORBIT_TYPE_DECAYED) ||
-            !$this->has_aos ($sat, $qth)) {
-
-            return 0.0;
-        }
-
-        if ($sat->el < 0.0) {
-            $t = $this->find_aos($sat, $qth, $start, $maxdt) + 0.001; // +1.5 min
-        }
-
-        /* invalid time (potentially returned by find_aos) */
-        if ($t < 0.01) {
-            return 0.0;
-        }
-
-        /* update satellite data */
-        $this->predict_calc($sat, $qth, $t);
-
-        /* use upper time limit */
-        if ($maxdt > 0.0) {
-
-            /* coarse steps */
-            while (($sat->el >= 1.0) && ($t <= ($start + $maxdt))) {
-                $t += cos(($sat->el - 1.0) * self::de2ra) * sqrt($sat->alt) / 25000.0;
-                $this->predict_calc($sat, $qth, $t);
-            }
-
-            /* fine steps */
-            while (($lostime == 0.0) && ($t <= ($start + $maxdt)))  {
-
-                $t += $sat->el * sqrt($sat->alt) / 502500.0;
-                $this->predict_calc($sat, $qth, $t);
-
-                if (abs($sat->el) < 0.005) {
-                    $lostime = $t;
-                }
-            }
-        } else {
-        /* don't use upper limit */
-
-            /* coarse steps */
-            while ($sat->el >= 1.0) {
-                $t += cos(($sat->el - 1.0) * self::de2ra) * sqrt($sat->alt) / 25000.0;
-                $this->predict_calc($sat, $qth, $t);
-            }
-
-            /* fine steps */
-            while ($lostime == 0.0) {
-
-                $t += $sat->el * sqrt($sat->alt) / 502500.0;
-                $this->predict_calc($sat, $qth, $t);
-
-                if (abs($sat->el) < 0.005)
-                    $lostime = $t;
-            }
-        }
-
-        return $lostime;
-    }
-
-    /** Find AOS time of current pass.
-     *  @param Predict_Sat $sat   The satellite to find AOS for.
-     *  @param Predict_QTH $qth   The ground station.
-     *  @param float       $start Start time, prefereably now.
-     *  @return The time of the previous AOS or 0.0 if the satellite has no AOS.
-     *
-     * This function can be used to find the AOS time in the past of the
-     * current pass.
-     */
-    public function find_prev_aos(Predict_Sat $sat, Predict_QTH $qth, $start)
-    {
-        $aostime = $start;
-
-        /* make sure current sat values are
+		$this->predict_calc($sat, $qth, $start);
+
+		/* check whether satellite has aos */
+		if (($sat->otype == Predict_SGPSDP::ORBIT_TYPE_GEO) ||
+			($sat->otype == Predict_SGPSDP::ORBIT_TYPE_DECAYED) ||
+			!$this->has_aos($sat, $qth)) {
+
+			return 0.0;
+		}
+
+		if ($sat->el > 0.0) {
+			$t = $this->find_los($sat, $qth, $start, $maxdt) + 0.014; // +20 min
+		}
+
+		/* invalid time (potentially returned by find_los) */
+		if ($t < 0.1) {
+			return 0.0;
+		}
+
+		/* update satellite data */
+		$this->predict_calc($sat, $qth, $t);
+
+		/* use upper time limit */
+		if ($maxdt > 0.0) {
+
+			/* coarse time steps */
+			while (($sat->el < -1.0) && ($t <= ($start + $maxdt))) {
+				$t -= 0.00035 * ($sat->el * (($sat->alt / 8400.0) + 0.46) - 2.0);
+				$this->predict_calc($sat, $qth, $t);
+			}
+
+			/* fine steps */
+			while (($aostime == 0.0) && ($t <= ($start + $maxdt))) {
+
+				if (abs($sat->el) < 0.005) {
+					$aostime = $t;
+				} else {
+					$t -= $sat->el * sqrt($sat->alt) / 530000.0;
+					$this->predict_calc($sat, $qth, $t);
+				}
+			}
+		} else {
+			/* don't use upper time limit */
+
+			/* coarse time steps */
+			while ($sat->el < -1.0) {
+
+				$t -= 0.00035 * ($sat->el * (($sat->alt / 8400.0) + 0.46) - 2.0);
+				$this->predict_calc($sat, $qth, $t);
+			}
+
+			/* fine steps */
+			while ($aostime == 0.0) {
+
+				if (abs($sat->el) < 0.005) {
+					$aostime = $t;
+				} else {
+					$t -= $sat->el * sqrt($sat->alt) / 530000.0;
+					$this->predict_calc($sat, $qth, $t);
+				}
+
+			}
+		}
+
+		return $aostime;
+	}
+
+	/** SGP4SDP4 driver for doing AOS/LOS calculations.
+	 *  @param Predict_Sat $sat The satellite data.
+	 *  @param Predict_QTH $qth The QTH observer location data.
+	 *  @param float       $t   The time for calculation (Julian Date)
+	 *
+	 */
+	public function predict_calc(Predict_Sat $sat, Predict_QTH $qth, $t)
+	{
+		$obs_set      = new Predict_ObsSet();
+		$sat_geodetic = new Predict_Geodetic();
+		$obs_geodetic = new Predict_Geodetic();
+
+		$obs_geodetic->lon   = $qth->lon * self::de2ra;
+		$obs_geodetic->lat   = $qth->lat * self::de2ra;
+		$obs_geodetic->alt   = $qth->alt / 1000.0;
+		$obs_geodetic->theta = 0;
+
+		$sat->jul_utc = $t;
+		$sat->tsince = ($sat->jul_utc - $sat->jul_epoch) * self::xmnpda;
+
+		/* call the norad routines according to the deep-space flag */
+		$sgpsdp = Predict_SGPSDP::getInstance($sat);
+		if ($sat->flags & Predict_SGPSDP::DEEP_SPACE_EPHEM_FLAG) {
+			$sgpsdp->SDP4($sat, $sat->tsince);
+		} else {
+			$sgpsdp->SGP4($sat, $sat->tsince);
+		}
+
+		Predict_Math::Convert_Sat_State($sat->pos, $sat->vel);
+
+		/* get the velocity of the satellite */
+		$sat->vel->w = sqrt($sat->vel->x * $sat->vel->x + $sat->vel->y * $sat->vel->y + $sat->vel->z * $sat->vel->z);
+		$sat->velo = $sat->vel->w;
+		Predict_SGPObs::Calculate_Obs($sat->jul_utc, $sat->pos, $sat->vel, $obs_geodetic, $obs_set);
+		Predict_SGPObs::Calculate_LatLonAlt($sat->jul_utc, $sat->pos, $sat_geodetic);
+
+		while ($sat_geodetic->lon < -self::pi) {
+			$sat_geodetic->lon += self::twopi;
+		}
+
+		while ($sat_geodetic->lon > (self::pi)) {
+			$sat_geodetic->lon -= self::twopi;
+		}
+
+		$sat->az = Predict_Math::Degrees($obs_set->az);
+		$sat->el = Predict_Math::Degrees($obs_set->el);
+		$sat->range = $obs_set->range;
+		$sat->range_rate = $obs_set->range_rate;
+		$sat->ssplat = Predict_Math::Degrees($sat_geodetic->lat);
+		$sat->ssplon = Predict_Math::Degrees($sat_geodetic->lon);
+		$sat->alt = $sat_geodetic->alt;
+		$sat->ma = Predict_Math::Degrees($sat->phase);
+		$sat->ma *= 256.0 / 360.0;
+		$sat->phase = Predict_Math::Degrees($sat->phase);
+
+		/* same formulas, but the one from predict is nicer */
+		//sat->footprint = 2.0 * xkmper * acos (xkmper/sat->pos.w);
+		$sat->footprint = 12756.33 * acos(self::xkmper / (self::xkmper + $sat->alt));
+		$age = $sat->jul_utc - $sat->jul_epoch;
+		$sat->orbit = floor(($sat->tle->xno * self::xmnpda / self::twopi +
+						$age * $sat->tle->bstar * self::ae) * $age +
+						$sat->tle->xmo / self::twopi) + $sat->tle->revnum - 1;
+	}
+
+	/** Find the LOS time of the next pass.
+	 *  @author Alexandru Csete, OZ9AEC
+	 *  @author John A. Magliacane, KD2BD
+	 *  @param Predict_Sat $sat The satellite data.
+	 *  @param Predict_QTH $qth The QTH observer location data.
+	 *  @param float       $start The time where calculation should start. (Julian Date)
+	 *  @param int         $maxdt The upper time limit in days (0.0 = no limit)
+	 *  @return The time (julian date) of the next LOS or 0.0 if the satellite has no LOS.
+	 *
+	 * This function finds the time of LOS for the first coming pass taking place
+	 * no earlier that start.
+	 * If the satellite is currently out of range, the function first calls
+	 * find_aos to get the next AOS time. Then the calculations are done using
+	 * the new start time.
+	 * The function has a built-in watchdog to ensure that we don't end up in
+	 * lengthy loops.
+	 *
+	 */
+	public function find_los(Predict_Sat $sat, Predict_QTH $qth, $start, $maxdt)
+	{
+		$t = $start;
+		$lostime = 0.0;
+
+
+		$this->predict_calc($sat, $qth, $start);
+
+		/* check whether satellite has aos */
+		if (($sat->otype == Predict_SGPSDP::ORBIT_TYPE_GEO) ||
+			($sat->otype == Predict_SGPSDP::ORBIT_TYPE_DECAYED) ||
+			!$this->has_aos ($sat, $qth)) {
+
+			return 0.0;
+		}
+
+		if ($sat->el < 0.0) {
+			$t = $this->find_aos($sat, $qth, $start, $maxdt) + 0.001; // +1.5 min
+		}
+
+		/* invalid time (potentially returned by find_aos) */
+		if ($t < 0.01) {
+			return 0.0;
+		}
+
+		/* update satellite data */
+		$this->predict_calc($sat, $qth, $t);
+
+		/* use upper time limit */
+		if ($maxdt > 0.0) {
+
+			/* coarse steps */
+			while (($sat->el >= 1.0) && ($t <= ($start + $maxdt))) {
+				$t += cos(($sat->el - 1.0) * self::de2ra) * sqrt($sat->alt) / 25000.0;
+				$this->predict_calc($sat, $qth, $t);
+			}
+
+			/* fine steps */
+			while (($lostime == 0.0) && ($t <= ($start + $maxdt)))  {
+
+				$t += $sat->el * sqrt($sat->alt) / 502500.0;
+				$this->predict_calc($sat, $qth, $t);
+
+				if (abs($sat->el) < 0.005) {
+					$lostime = $t;
+				}
+			}
+		} else {
+		/* don't use upper limit */
+
+			/* coarse steps */
+			while ($sat->el >= 1.0) {
+				$t += cos(($sat->el - 1.0) * self::de2ra) * sqrt($sat->alt) / 25000.0;
+				$this->predict_calc($sat, $qth, $t);
+			}
+
+			/* fine steps */
+			while ($lostime == 0.0) {
+
+				$t += $sat->el * sqrt($sat->alt) / 502500.0;
+				$this->predict_calc($sat, $qth, $t);
+
+				if (abs($sat->el) < 0.005)
+					$lostime = $t;
+			}
+		}
+
+		return $lostime;
+	}
+
+	/** Find AOS time of current pass.
+	 *  @param Predict_Sat $sat   The satellite to find AOS for.
+	 *  @param Predict_QTH $qth   The ground station.
+	 *  @param float       $start Start time, prefereably now.
+	 *  @return The time of the previous AOS or 0.0 if the satellite has no AOS.
+	 *
+	 * This function can be used to find the AOS time in the past of the
+	 * current pass.
+	 */
+	public function find_prev_aos(Predict_Sat $sat, Predict_QTH $qth, $start)
+	{
+		$aostime = $start;
+
+		/* make sure current sat values are
             in sync with the time
         */
-        $this->predict_calc($sat, $qth, $start);
-
-        /* check whether satellite has aos */
-        if (($sat->otype == Predict_SGPSDP::ORBIT_TYPE_GEO) ||
-            ($sat->otype == Predict_SGPSDP::ORBIT_TYPE_DECAYED) ||
-            !$this->has_aos($sat, $qth)) {
-
-            return 0.0;
-        }
-
-        while ($sat->el >= 0.0) {
-            $aostime -= 0.0005; // 0.75 min
-            $this->predict_calc($sat, $qth, $aostime);
-        }
-
-        return $aostime;
-    }
-
-    /** Determine whether satellite ever reaches AOS.
-     *  @author John A. Magliacane, KD2BD
-     *  @author Alexandru Csete, OZ9AEC
-     *  @param Predict_Sat $sat The satellite data.
-     *  @param Predict_QTH $qth The observer's location data
-     *  @return bool true if the satellite will reach AOS, false otherwise.
-     *
-     */
-    public function has_aos(Predict_Sat $sat, Predict_QTH $qth)
-    {
-         $retcode = false;
-
-         /* FIXME */
-         if ($sat->meanmo == 0.0) {
-              $retcode = false;
-         } else {
-
-            /* xincl is already in RAD by select_ephemeris */
-            $lin = $sat->tle->xincl;
-            if ($lin >= self::pio2) {
-                $lin = self::pi - $lin;
-            }
-
-            $sma = 331.25 * exp(log(1440.0 / $sat->meanmo) * (2.0 / 3.0));
-            $apogee = $sma * (1.0 + $sat->tle->eo) - self::xkmper;
-
-            if ((acos(self::xkmper / ($apogee + self::xkmper)) + ($lin)) > abs($qth->lat * self::de2ra)) {
-                $retcode = true;
-            } else {
-                $retcode = false;
-            }
-        }
-
-        return $retcode;
-    }
-
-    /** Predict passes after a certain time.
-     *
-     *
-     * This function calculates num upcoming passes with AOS no earlier
-     * than t = start and not later that t = (start+maxdt). The function will
-     *  repeatedly call get_pass until
-     * the number of predicted passes is equal to num, the time has reached
-     * limit or the get_pass function returns NULL.
-     *
-     * note For no time limit use maxdt = 0.0
-     *
-     * note the data in sat will be corrupt (future) and must be refreshed
-     *      by the caller, if the caller will need it later on (eg. if the caller
-     *      is GtkSatList).
-     *
-     * note Prepending to a singly linked list is much faster than appending.
-     *      Therefore, the elements are prepended whereafter the GSList is
-     *      reversed
-     *
-     *
-     * @param Predict_Sat  $sat The satellite data
-     * @param Predict_QTH  $qth The observer's location data
-     * @param float $start The start julian date
-     * @param int   $maxdt The max # of days to look
-     * @param int   $num   The max # of passes to get
-     * @return array of Predict_Pass instances if found, empty array otherwise
-     */
-    public function get_passes(Predict_Sat $sat, Predict_QTH $qth, $start, $maxdt, $num = 0)
-    {
-        $passes = array();
-
-        /* if no number has been specified
+		$this->predict_calc($sat, $qth, $start);
+
+		/* check whether satellite has aos */
+		if (($sat->otype == Predict_SGPSDP::ORBIT_TYPE_GEO) ||
+			($sat->otype == Predict_SGPSDP::ORBIT_TYPE_DECAYED) ||
+			!$this->has_aos($sat, $qth)) {
+
+			return 0.0;
+		}
+
+		while ($sat->el >= 0.0) {
+			$aostime -= 0.0005; // 0.75 min
+			$this->predict_calc($sat, $qth, $aostime);
+		}
+
+		return $aostime;
+	}
+
+	/** Determine whether satellite ever reaches AOS.
+	 *  @author John A. Magliacane, KD2BD
+	 *  @author Alexandru Csete, OZ9AEC
+	 *  @param Predict_Sat $sat The satellite data.
+	 *  @param Predict_QTH $qth The observer's location data
+	 *  @return bool true if the satellite will reach AOS, false otherwise.
+	 *
+	 */
+	public function has_aos(Predict_Sat $sat, Predict_QTH $qth)
+	{
+		 $retcode = false;
+
+		 /* FIXME */
+		 if ($sat->meanmo == 0.0) {
+			  $retcode = false;
+		 } else {
+
+			/* xincl is already in RAD by select_ephemeris */
+			$lin = $sat->tle->xincl;
+			if ($lin >= self::pio2) {
+				$lin = self::pi - $lin;
+			}
+
+			$sma = 331.25 * exp(log(1440.0 / $sat->meanmo) * (2.0 / 3.0));
+			$apogee = $sma * (1.0 + $sat->tle->eo) - self::xkmper;
+
+			if ((acos(self::xkmper / ($apogee + self::xkmper)) + ($lin)) > abs($qth->lat * self::de2ra)) {
+				$retcode = true;
+			} else {
+				$retcode = false;
+			}
+		}
+
+		return $retcode;
+	}
+
+	/** Predict passes after a certain time.
+	 *
+	 *
+	 * This function calculates num upcoming passes with AOS no earlier
+	 * than t = start and not later that t = (start+maxdt). The function will
+	 *  repeatedly call get_pass until
+	 * the number of predicted passes is equal to num, the time has reached
+	 * limit or the get_pass function returns NULL.
+	 *
+	 * note For no time limit use maxdt = 0.0
+	 *
+	 * note the data in sat will be corrupt (future) and must be refreshed
+	 *      by the caller, if the caller will need it later on (eg. if the caller
+	 *      is GtkSatList).
+	 *
+	 * note Prepending to a singly linked list is much faster than appending.
+	 *      Therefore, the elements are prepended whereafter the GSList is
+	 *      reversed
+	 *
+	 *
+	 * @param Predict_Sat  $sat The satellite data
+	 * @param Predict_QTH  $qth The observer's location data
+	 * @param float $start The start julian date
+	 * @param int   $maxdt The max # of days to look
+	 * @param int   $num   The max # of passes to get
+	 * @return array of Predict_Pass instances if found, empty array otherwise
+	 */
+	public function get_passes(Predict_Sat $sat, Predict_QTH $qth, $start, $maxdt, $num = 0)
+	{
+		$passes = array();
+
+		/* if no number has been specified
             set it to something big */
-        if ($num == 0) {
-            $num = 100;
-        }
+		if ($num == 0) {
+			$num = 100;
+		}
 
-        $t = $start;
+		$t = $start;
 
-        for ($i = 0; $i < $num; $i++) {
-            $pass = $this->get_pass($sat, $qth, $t, $maxdt);
+		for ($i = 0; $i < $num; $i++) {
+			$pass = $this->get_pass($sat, $qth, $t, $maxdt);
 
-            if ($pass != null) {
-                $passes[] = $pass;
-                $t = $pass->los + 0.014; // +20 min
+			if ($pass != null) {
+				$passes[] = $pass;
+				$t = $pass->los + 0.014; // +20 min
 
-                /* if maxdt > 0.0 check whether we have reached t = start+maxdt
+				/* if maxdt > 0.0 check whether we have reached t = start+maxdt
                     if yes finish predictions
                 */
-                if (($maxdt > 0.0) && ($t >= ($start + $maxdt))) {
-                    $i = $num;
-                }
-            } else {
-                /* we can't get any more passes */
-                $i = $num;
-            }
-        }
-
-        return $passes;
-    }
-
-    /**
-     * Filters out visible passes and adds the visible aos, tca, los, and
-     * corresponding az and ele for each.
-     *
-     * @param array $passes The passes returned from get_passes()
-     *
-     * @author Bill Shupp
-     * @return array
-     */
-    public function filterVisiblePasses(array $passes)
-    {
-        $filtered = array();
-
-        foreach ($passes as $result) {
-            // Dummy check
-            if ($result->vis[0] != 'V') {
-                continue;
-            }
-
-            $aos    = false;
-            $aos_az = false;
-            $aos    = false;
-            $tca    = false;
-            $los_az = false;
-            $max_el = 0;
-
-            foreach ($result->details as $detail) {
-                if ($detail->vis != Predict::SAT_VIS_VISIBLE) {
-                    continue;
-                }
-                if ($detail->el < $this->minEle) {
-                    continue;
-                }
-
-                if ($aos == false) {
-                    $aos       = $detail->time;
-                    $aos_az    = $detail->az;
-                    $aos_el    = $detail->el;
-                    $tca       = $detail->time;
-                    $los       = $detail->time;
-                    $los_az    = $detail->az;
-                    $los_el    = $detail->el;
-                    $max_el    = $detail->el;
-                    $max_el_az = $detail->el;
-                    continue;
-                }
-                $los    = $detail->time;
-                $los_az = $detail->az;
-                $los_el = $detail->el;
-
-                if ($detail->el > $max_el) {
-                    $tca       = $detail->time;
-                    $max_el    = $detail->el;
-                    $max_el_az = $detail->az;
-                }
-            }
-
-            if ($aos === false) {
-                // Does not reach minimum elevation, skip
-                continue;
-            }
-
-            $result->visible_aos       = $aos;
-            $result->visible_aos_az    = $aos_az;
-            $result->visible_aos_el    = $aos_el;
-            $result->visible_tca       = $tca;
-            $result->visible_max_el    = $max_el;
-            $result->visible_max_el_az = $max_el_az;
-            $result->visible_los       = $los;
-            $result->visible_los_az    = $los_az;
-            $result->visible_los_el    = $los_el;
-
-            $filtered[] = $result;
-        }
-
-        return $filtered;
-    }
-
-    /**
-     * Translates aziumuth degrees to compass direction:
-     *
-     * N (0°), NNE (22.5°), NE (45°), ENE (67.5°), E (90°), ESE (112.5°),
-     * SE (135°), SSE (157.5°), S (180°), SSW (202.5°), SW (225°),
-     * WSW (247.5°), W (270°), WNW (292.5°), NW (315°), NNW (337.5°)
-     *
-     * @param int $az The azimuth in degrees, defaults to 0
-     *
-     * @return string
-     */
-    public function azDegreesToDirection($az = 0)
-    {
-        $i = floor($az / 22.5);
-        $m = (22.5 * (2 * $i + 1)) / 2;
-        $i = ($az >= $m) ? $i + 1 : $i;
-
-        return trim(substr('N  NNENE ENEE  ESESE SSES  SSWSW WSWW  WNWNW NNWN  ', $i * 3, 3));
-    }
+				if (($maxdt > 0.0) && ($t >= ($start + $maxdt))) {
+					$i = $num;
+				}
+			} else {
+				/* we can't get any more passes */
+				$i = $num;
+			}
+		}
+
+		return $passes;
+	}
+
+	/**
+	 * Filters out visible passes and adds the visible aos, tca, los, and
+	 * corresponding az and ele for each.
+	 *
+	 * @param array $passes The passes returned from get_passes()
+	 *
+	 * @author Bill Shupp
+	 * @return array
+	 */
+	public function filterVisiblePasses(array $passes)
+	{
+		$filtered = array();
+
+		foreach ($passes as $result) {
+			// Dummy check
+			if ($result->vis[0] != 'V') {
+				continue;
+			}
+
+			$aos    = false;
+			$aos_az = false;
+			$aos    = false;
+			$tca    = false;
+			$los_az = false;
+			$max_el = 0;
+
+			foreach ($result->details as $detail) {
+				if ($detail->vis != Predict::SAT_VIS_VISIBLE) {
+					continue;
+				}
+				if ($detail->el < $this->minEle) {
+					continue;
+				}
+
+				if ($aos == false) {
+					$aos       = $detail->time;
+					$aos_az    = $detail->az;
+					$aos_el    = $detail->el;
+					$tca       = $detail->time;
+					$los       = $detail->time;
+					$los_az    = $detail->az;
+					$los_el    = $detail->el;
+					$max_el    = $detail->el;
+					$max_el_az = $detail->el;
+					continue;
+				}
+				$los    = $detail->time;
+				$los_az = $detail->az;
+				$los_el = $detail->el;
+
+				if ($detail->el > $max_el) {
+					$tca       = $detail->time;
+					$max_el    = $detail->el;
+					$max_el_az = $detail->az;
+				}
+			}
+
+			if ($aos === false) {
+				// Does not reach minimum elevation, skip
+				continue;
+			}
+
+			$result->visible_aos       = $aos;
+			$result->visible_aos_az    = $aos_az;
+			$result->visible_aos_el    = $aos_el;
+			$result->visible_tca       = $tca;
+			$result->visible_max_el    = $max_el;
+			$result->visible_max_el_az = $max_el_az;
+			$result->visible_los       = $los;
+			$result->visible_los_az    = $los_az;
+			$result->visible_los_el    = $los_el;
+
+			$filtered[] = $result;
+		}
+
+		return $filtered;
+	}
+
+	/**
+	 * Translates aziumuth degrees to compass direction:
+	 *
+	 * N (0°), NNE (22.5°), NE (45°), ENE (67.5°), E (90°), ESE (112.5°),
+	 * SE (135°), SSE (157.5°), S (180°), SSW (202.5°), SW (225°),
+	 * WSW (247.5°), W (270°), WNW (292.5°), NW (315°), NNW (337.5°)
+	 *
+	 * @param int $az The azimuth in degrees, defaults to 0
+	 *
+	 * @return string
+	 */
+	public function azDegreesToDirection($az = 0)
+	{
+		$i = floor($az / 22.5);
+		$m = (22.5 * (2 * $i + 1)) / 2;
+		$i = ($az >= $m) ? $i + 1 : $i;
+
+		return trim(substr('N  NNENE ENEE  ESESE SSES  SSWSW WSWW  WNWNW NNWN  ', $i * 3, 3));
+	}
 }