Spacecraft information: ATLAS CENTAUR R/B
| Launched | 25 May 1977 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 10025 |
| COSPAR ID | 1977-041B |
| Observing |
Current orbital elements
| Inclination | 21.681° |
| Eccentricity | 0.71839 |
| RA ascending node | 20.266 hr |
| Argument perigee | 48.373° |
| Mean anomaly | 45.906° |
| Orbital period | 646.092 min |
| Epoch of osculation | 01 Feb 2026, 22:10 |
Derived Quantities
| Min Altitude | 600.6 km |
| Mean Altitude | 18385.5 km |
| Peak Altitude | 36170.4 km |
Launched alongside
INTELSAT 4A-F4Orbital History
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