IUS R/B(1)
| Launched | 12 November 1990 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20931 |
| COSPAR ID | 1990-095C |
| Observing |
IUS R/B(1)
| Launched | 12 November 1990 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20931 |
| COSPAR ID | 1990-095C |
| Observing |