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INTELSAT 21
Launch Details
| Launched | 18 August 2012 |
| Flight ended | – |
| Status | Operational |
| Categories |
Geostationary
Intelsat Active satellites |
| Launch site | Sea Launch Platform (mobile) |
| Owner | International Telecommunications Satellite Organization (INTELSAT) |
| NORAD ID | 38749 |
| COSPAR ID | 2012-045A |
| Alternative names |
IS-21 |
| Observing |
Current orbital elements
| Inclination | 0.018° |
| Eccentricity | 0.00027 |
| RA ascending node | 6.898 hr |
| Argument perigee | 129.811° |
| Mean anomaly | 16.443° |
| Orbital period | 1436.126 min |
| Epoch of osculation | 31 Oct 2025, 17:49 |
Derived Quantities
| Min Altitude | 35782.9 km |
| Mean Altitude | 35794.3 km |
| Peak Altitude | 35805.7 km |
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.
Launched alongside
BLOCK DM-SL R/B