Spacecraft information: MAGSAT
| Launched | 29 October 1979 |
| Flight ended | 10 June 1980 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 11604 |
| COSPAR ID | 1979-094A |
| Alternative names |
AEM-3 APPLICATIONS EXPLORER MISSION-3 EXPLORER 61 |
| Observing |
Launched alongside
SCOUT G-1 R/B