Spacecraft information: INTELSAT 503
| Launched | 14 December 1981 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | International Telecommunications Satellite Organization (INTELSAT) |
| NORAD ID | 12994 |
| COSPAR ID | 1981-119A |
| Observing |
Current orbital elements
| Inclination | 11.318° |
| Eccentricity | 0.00468 |
| RA ascending node | 21.825 hr |
| Argument perigee | 268.982° |
| Mean anomaly | 268.346° |
| Orbital period | 1447.659 min |
| Epoch of osculation | 05 May 2026, 07:44 |
Derived Quantities
| Min Altitude | 35821.5 km |
| Mean Altitude | 36019.7 km |
| Peak Altitude | 36218.0 km |
Launched alongside
ATLAS CENTAUR R/BOrbital History
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