GPS BIIRM-5, GPS 2R-18, SVN 57, PRN 29, SLOT C1 - Norad ID: 32384
| Spacetrack Directory Name | NAVSTAR 61 (USA 199) |
| Alternative name | GPS BIIRM-5, GPS 2R-18, SVN 57, PRN 29, SLOT C1 |
| Group | GPS |
| Follow NAVSTAR 61 (USA 199) | NAVSTAR 61 (USA 199) Tracker |
| Group follow GPS | Tracker GPS |
| Pass predictions NAVSTAR 61 (USA 199) | Pass predictions NAVSTAR 61 (USA 199) |
| Orbit launches |
|
| Days in orbit | 6762 |
| Country/organisation of origin | USA (US) |
| Starting point | AFETR (Kennedy Space Center/Cape Canaveral, USA) |
| Type | Satellite |
| Categories | |
| Perigee | 20141 km |
| Apogee | 20226 km |
| Orbit slope (inclination) | 55.03° |
| Laps per day | 2 |
| Orbit | MEO (Non-Polar Inclined) |
| Height NAVSTAR 61 (USA 199) | 20189.53 km |
NAVSTAR 61 (USA 199), also known as GPS IIR-18(M), is a US satellite used for navigation purposes. Launched on December 20, 2007, from SLC17A at AFETR using the Delta 7925-9.5 launch vehicle, this Series 4000 configuration satellite measures 1.5 meters in length and 1.9 meters in diameter with a span of 19.3 meters. The spacecraft has a dry mass of 910 kg and a launch mass of 1077 kg. It is powered by two deployable solar arrays and batteries, featuring a Box + 2 Pan shape design with an RCS of 2. NAVSTAR 61 was manufactured by LMVF for AFSMC and carries the GPS SVN 57 payload as part of its navigation mission.
satellite NAVSTAR 61 (USA 199) Date of exalting 20.12.2007y. Average height of ISS NAVSTAR 61 (USA 199) hundred 20189.53 km. Average velocity NAVSTAR 61 (USA 199) is 13946.13 km/h. Inclination NAVSTAR 61 (USA 199) satellite 55.17°.