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TERRA
Launch Details
| Launched | 17 December 1999 |
| Flight ended | – |
| Status | Extended mission |
| Categories |
Assorted bright
Earth Resources Tracking and Data Relay Satellite System (TDRSS) Space & Earth Science Active satellites |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 25994 |
| COSPAR ID | 1999-068A |
| Observing |
Current orbital elements
| Inclination | 97.983° |
| Eccentricity | 0.00009 |
| RA ascending node | 23.124 hr |
| Argument perigee | 262.107° |
| Mean anomaly | 137.770° |
| Orbital period | 98.572 min |
| Epoch of osculation | 20 Oct 2025, 05:42 |
Derived Quantities
| Min Altitude | 696.9 km |
| Mean Altitude | 697.5 km |
| Peak Altitude | 698.2 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
ATLAS 2A CENTAUR R/B