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Spacecraft information: GEOS-1
Launch Details
| Launched | 19 April 1977 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | European Space Agency |
| NORAD ID | 9931 |
| COSPAR ID | 1977-029A |
| Alternative names |
GEOSTATIONARY SCIENTIFIC SATELLITE-1 |
| Observing |
Current orbital elements
| Inclination | 27.135° |
| Eccentricity | 0.65803 |
| RA ascending node | 4.818 hr |
| Argument perigee | 260.347° |
| Mean anomaly | 25.033° |
| Orbital period | 734.042 min |
| Epoch of osculation | 20 Dec 2025, 04:15 |
Derived Quantities
| Min Altitude | 2846.9 km |
| Mean Altitude | 20584.1 km |
| Peak Altitude | 38321.3 km |
Orbital History
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