Spacecraft information: IUS R/B(1)
| Launched | 5 October 1990 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20843 |
| COSPAR ID | 1990-090C |
| Observing |
Current orbital elements
| Inclination | 28.270° |
| Eccentricity | 0.66828 |
| RA ascending node | 4.766 hr |
| Argument perigee | 146.530° |
| Mean anomaly | 283.531° |
| Orbital period | 473.808 min |
| Epoch of osculation | 20 May 2026, 21:26 |
Derived Quantities
| Min Altitude | 307.2 km |
| Mean Altitude | 13761.4 km |
| Peak Altitude | 27215.5 km |
Orbital History
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