Spacecraft information: ATLAS 42E R/B
| Launched | 12 June 1984 |
| Flight ended | 10 May 1994 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 15040 |
| COSPAR ID | 1984-059B |
| Observing |
Launched alongside
NAVSTAR 9