| Name of Satellite, Alternate Names | GSSAP 1 (Geosynchronous Space Situational Awareness Program, USA 253) |
| Country of Operator/Owner | USA |
| Operator/Owner | Air Force Satellite Control Network |
| Users | Military |
| Purpose | Surveillance |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | |
| Perigee (km) | 35900 |
| Apogee (km) | 35900 |
| Eccentricity | 0 |
| Inclination (degrees) | |
| Period (minutes) | |
| Launch Mass (kg.) | |
| Dry Mass (kg.) | 600 |
| Power (watts) | |
| Date of Launch | 28-07-2014 |
| Expected Lifetime | |
| Contractor | Orbital Sciences Corp. |
| Country of Contractor | USA |
| Launch Site | Cape Canaveral |
| Launch Vehicle | Delta 4M |
| COSPAR Number | 2014-043A |
| NORAD Number | 40099 |
| Comments | Space surveillance of satellites in GEO. |