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Spacecraft information: STEX
Launch Details
| Launched | 2 October 1998 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 25489 |
| COSPAR ID | 1998-055A |
| Alternative names |
SPACE TECHNOLOGY EXPERIMENT |
| Observing |
Current orbital elements
| Inclination | 84.983° |
| Eccentricity | 0.00105 |
| RA ascending node | 22.117 hr |
| Argument perigee | 53.536° |
| Mean anomaly | 306.680° |
| Orbital period | 99.184 min |
| Epoch of osculation | 22 Jun 2026, 16:39 |
Derived Quantities
| Min Altitude | 719.3 km |
| Mean Altitude | 726.7 km |
| Peak Altitude | 734.2 km |
Orbital History
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