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Spacecraft information: DELTA 2 R/B
Launch Details
| Launched | 28 May 1991 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 21393 |
| COSPAR ID | 1991-037B |
| Observing |
Current orbital elements
| Inclination | 24.974° |
| Eccentricity | 0.07905 |
| RA ascending node | 8.245 hr |
| Argument perigee | 117.989° |
| Mean anomaly | 250.284° |
| Orbital period | 104.379 min |
| Epoch of osculation | 11 Dec 2025, 23:43 |
Derived Quantities
| Min Altitude | 392.0 km |
| Mean Altitude | 972.5 km |
| Peak Altitude | 1553.0 km |
Orbital History
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