Spacecraft information: TITAN 34D R/B
| Launched | 25 October 1987 |
| Flight ended | 26 October 1987 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 18442 |
| COSPAR ID | 1987-090B |
| Observing |
Launched alongside
USA 27