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Spacecraft information: 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 | 97.958° |
| Eccentricity | 0.00031 |
| RA ascending node | 8.565 hr |
| Argument perigee | 137.004° |
| Mean anomaly | 285.914° |
| Orbital period | 98.561 min |
| Epoch of osculation | 16 Mar 2026, 06:57 |
Derived Quantities
| Min Altitude | 694.8 km |
| Mean Altitude | 697.0 km |
| Peak Altitude | 699.2 km |
Launched alongside
ATLAS 2A CENTAUR R/BOrbital History
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