Spacecraft information: IUS R/B(1)
| Launched | 3 May 1989 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 19970 |
| COSPAR ID | 1989-033C |
| Observing |
Current orbital elements
| Inclination | 27.969° |
| Eccentricity | 0.58986 |
| RA ascending node | 18.505 hr |
| Argument perigee | 109.942° |
| Mean anomaly | 320.273° |
| Orbital period | 344.901 min |
| Epoch of osculation | 20 Mar 2026, 11:04 |
Derived Quantities
| Min Altitude | 310.8 km |
| Mean Altitude | 9920.3 km |
| Peak Altitude | 19529.9 km |
Orbital History
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