Spacecraft information: GSTAR 1
| Launched | 7 May 1985 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Europe's Spaceport, Kourou, French Guiana |
| Owner | United States |
| NORAD ID | 15677 |
| COSPAR ID | 1985-035A |
| Observing |
Current orbital elements
| Inclination | 14.393° |
| Eccentricity | 0.00031 |
| RA ascending node | 23.343 hr |
| Argument perigee | 166.049° |
| Mean anomaly | 194.616° |
| Orbital period | 1436.083 min |
| Epoch of osculation | 12 Dec 2025, 00:59 |
Derived Quantities
| Min Altitude | 35780.5 km |
| Mean Altitude | 35793.5 km |
| Peak Altitude | 35806.4 km |
Orbital History
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