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GSTAR 4
Launch Details
| Launched | 19 November 1990 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Europe's Spaceport, Kourou, French Guiana |
| Owner | United States |
| NORAD ID | 20946 |
| COSPAR ID | 1990-100B |
| Observing |
Current orbital elements
| Inclination | 14.146° |
| Eccentricity | 0.00072 |
| RA ascending node | 0.768 hr |
| Argument perigee | 300.684° |
| Mean anomaly | 65.321° |
| Orbital period | 1452.381 min |
| Epoch of osculation | 06 Dec 2025, 07:42 |
Derived Quantities
| Min Altitude | 36081.4 km |
| Mean Altitude | 36111.9 km |
| Peak Altitude | 36142.4 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.