Spacecraft information: IUS R/B(2)
| Launched | 22 November 1989 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20357 |
| COSPAR ID | 1989-090D |
| Observing |
Current orbital elements
| Inclination | 17.326° |
| Eccentricity | 0.03337 |
| RA ascending node | 22.904 hr |
| Argument perigee | 99.489° |
| Mean anomaly | 264.296° |
| Orbital period | 1446.939 min |
| Epoch of osculation | 14 Mar 2026, 21:33 |
Derived Quantities
| Min Altitude | 34591.4 km |
| Mean Altitude | 36005.7 km |
| Peak Altitude | 37420.0 km |
Orbital History
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