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Spacecraft information: PEGASUS R/B
Launch Details
| Launched | 1 April 1998 |
| Flight ended | 7 December 2025 |
| Status | Decayed |
| Launch site | Western Range Airspace |
| Owner | United States |
| NORAD ID | 25281 |
| COSPAR ID | 1998-020B |
| Observing |
Current orbital elements
| Inclination | 97.288° |
| Eccentricity | 0.00081 |
| RA ascending node | 14.224 hr |
| Argument perigee | 254.017° |
| Mean anomaly | 106.025° |
| Orbital period | 87.358 min |
| Epoch of osculation | 08 Dec 2025, 07:05 |
Derived Quantities
| Min Altitude | 145.4 km |
| Mean Altitude | 150.7 km |
| Peak Altitude | 156.0 km |
Launched alongside
TRACEOrbital History
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