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    GPS 27
            Launch Details
            
                
        
                    | Launched | 14 May 2013 | 
| Flight ended | – | 
| Status | Operational | 
| Categories | 
                                                            
                                    Search & Rescue (SARSAT)                                
                                 GPS Operational Active satellites  | 
                    
| Launch site | Air Force Eastern Test Range, Florida, USA | 
| Owner | United States | 
| NORAD ID | 39166 | 
| COSPAR ID | 2013-023A | 
| Alternative names | 
                                                            USA 242                                 NAVSTAR 68 GPS BIIF-4 GPS 2F-4 SVN 66 PRN 27 SLOT C2  | 
                    
| Observing | 
Current orbital elements
| Inclination | 54.687° | 
| Eccentricity | 0.01355 | 
| RA ascending node | 18.547 hr | 
| Argument perigee | 48.261° | 
| Mean anomaly | 312.878° | 
| Orbital period | 717.971 min | 
| Epoch of osculation | 02 Nov 2025, 07:55 | 
Derived Quantities
| Min Altitude | 19829.3 km | 
| Mean Altitude | 20189.2 km | 
| Peak Altitude | 20549.1 km | 
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.
Launched alongside
ATLAS 5 CENTAUR R/B