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HEAO-3 Program

NASA’s HEAO-3 Program launched on 20 September 1979 and operated until 29 May 1981. It carried three high-energy astrophysics instruments: a high-resolution gamma-ray spectrometer surveying hard X-rays and gamma rays, plus two experiments measuring cosmic-ray composition. The mission’s largest-in-orbit germanium spectrometer and major cosmic-ray detectors supported a sky survey of gamma-ray narrow-line emission and cosmic-ray studies.

Identity

Aliases
HEAO-3High Energy Astronomy Observatory-3High Energy Astrophysics Observatory-3HEAO 3
Domains
spaceflight
Name
HEAO-3 Program
Status
completed
Types
scienceresearchoperationsdevelopment

Details

Description
NASA’s HEAO-3 Program launched on 20 September 1979 and operated until 29 May 1981. It carried three high-energy astrophysics instruments: a high-resolution gamma-ray spectrometer surveying hard X-rays and gamma rays, plus two experiments measuring cosmic-ray composition. The mission’s largest-in-orbit germanium spectrometer and major cosmic-ray detectors supported a sky survey of gamma-ray narrow-line emission and cosmic-ray studies.
End Date
1981-05-29
Leads
Parent Program
Participants
-
Start Date
1979-09-20

Assets & Meta

Creation Time
August 13, 2026 at 15:06:42 UTC
Updated Time
August 13, 2026 at 15:06:42 UTC

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