Spacecraft information: INTELSAT 4-F1
| Launched | 21 May 1975 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | International Telecommunications Satellite Organization (INTELSAT) |
| NORAD ID | 7815 |
| COSPAR ID | 1975-042A |
| Observing |
Current orbital elements
| Inclination | 8.618° |
| Eccentricity | 0.00135 |
| RA ascending node | 20.488 hr |
| Argument perigee | 277.751° |
| Mean anomaly | 82.199° |
| Orbital period | 1450.735 min |
| Epoch of osculation | 25 Dec 2025, 18:35 |
Derived Quantities
| Min Altitude | 36022.3 km |
| Mean Altitude | 36079.8 km |
| Peak Altitude | 36137.3 km |
Launched alongside
ATLAS CENTAUR R/BOrbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.