Spacecraft information: EUTELSAT 1-F4
| Launched | 15 September 1987 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Europe's Spaceport, Kourou, French Guiana |
| Owner | European Telecommunications Satellite Organization (EUTELSAT) |
| NORAD ID | 18351 |
| COSPAR ID | 1987-078B |
| Alternative names |
ECS 4 |
| Observing |
Current orbital elements
| Inclination | 13.963° |
| Eccentricity | 0.00083 |
| RA ascending node | 22.896 hr |
| Argument perigee | 15.431° |
| Mean anomaly | 347.691° |
| Orbital period | 1459.133 min |
| Epoch of osculation | 11 Dec 2025, 21:46 |
Derived Quantities
| Min Altitude | 36208.2 km |
| Mean Altitude | 36243.4 km |
| Peak Altitude | 36278.6 km |
Orbital History
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