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Spacecraft information: IUS R/B(1)
Launch Details
| Launched | 1 August 1991 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 21640 |
| COSPAR ID | 1991-054C |
| Observing |
Current orbital elements
| Inclination | 26.465° |
| Eccentricity | 0.66559 |
| RA ascending node | 5.489 hr |
| Argument perigee | 141.508° |
| Mean anomaly | 292.998° |
| Orbital period | 463.088 min |
| Epoch of osculation | 20 Mar 2026, 03:47 |
Derived Quantities
| Min Altitude | 259.5 km |
| Mean Altitude | 13456.6 km |
| Peak Altitude | 26653.6 km |
Orbital History
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