Spacecraft information: ATLAS CENTAUR R/B
| Launched | 25 September 1975 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 8331 |
| COSPAR ID | 1975-091B |
| Observing |
Current orbital elements
| Inclination | 21.501° |
| Eccentricity | 0.72428 |
| RA ascending node | 15.044 hr |
| Argument perigee | 56.496° |
| Mean anomaly | 352.816° |
| Orbital period | 647.851 min |
| Epoch of osculation | 29 Dec 2025, 21:53 |
Derived Quantities
| Min Altitude | 467.2 km |
| Mean Altitude | 18430.5 km |
| Peak Altitude | 36393.7 km |
Launched alongside
INTELSAT 4A-F1Orbital History
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