Spacecraft information: OSCAR 31
| Launched | 24 August 1988 |
| Flight ended | – |
| Status | Unknown |
| Category |
Navy Navigation Satellite System (NNSS)
|
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 19420 |
| COSPAR ID | 1988-074B |
| Observing |
Current orbital elements
| Inclination | 90.047° |
| Eccentricity | 0.00931 |
| RA ascending node | 1.409 hr |
| Argument perigee | 207.201° |
| Mean anomaly | 273.179° |
| Orbital period | 107.254 min |
| Epoch of osculation | 29 Apr 2026, 06:48 |
Derived Quantities
| Min Altitude | 1037.1 km |
| Mean Altitude | 1106.7 km |
| Peak Altitude | 1176.4 km |
Orbital History
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