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Spacecraft information: HEAO 3
Launch Details
| Launched | 19 September 1979 |
| Flight ended | 6 December 1981 |
| Status | Decayed |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 11532 |
| COSPAR ID | 1979-082A |
| Observing |
Launched alongside
ATLAS CENTAUR R/B