Spacecraft information: CAT 4
| Launched | 19 December 1981 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Europe's Spaceport, Kourou, French Guiana |
| Owner | European Space Agency |
| NORAD ID | 13011 |
| COSPAR ID | 1981-122B |
| Observing |
Current orbital elements
| Inclination | 10.387° |
| Eccentricity | 0.65235 |
| RA ascending node | 11.627 hr |
| Argument perigee | 245.169° |
| Mean anomaly | 35.986° |
| Orbital period | 437.144 min |
| Epoch of osculation | 07 Apr 2026, 18:40 |
Derived Quantities
| Min Altitude | 262.2 km |
| Mean Altitude | 12708.9 km |
| Peak Altitude | 25155.7 km |
Orbital History
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