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Spacecraft information: DELTA 2 R/B
Launch Details
| Launched | 12 April 1991 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 21228 |
| COSPAR ID | 1991-028B |
| Observing |
Current orbital elements
| Inclination | 23.999° |
| Eccentricity | 0.11334 |
| RA ascending node | 12.471 hr |
| Argument perigee | 254.982° |
| Mean anomaly | 92.265° |
| Orbital period | 114.687 min |
| Epoch of osculation | 20 Mar 2026, 06:36 |
Derived Quantities
| Min Altitude | 562.1 km |
| Mean Altitude | 1448.3 km |
| Peak Altitude | 2334.6 km |
Orbital History
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