STS 31
| Launched | 23 April 1990 |
| Flight ended | 28 April 1990 |
| Status | Decayed |
| Destination | Earth Landing |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20579 |
| COSPAR ID | 1990-037A |
| Observing |
STS 31
| Launched | 23 April 1990 |
| Flight ended | 28 April 1990 |
| Status | Decayed |
| Destination | Earth Landing |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20579 |
| COSPAR ID | 1990-037A |
| Observing |