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HEAO-3

HEAO-3 was NASA's third High Energy Astronomy Observatory, launched into low Earth orbit on September 20, 1979 to survey hard X-rays and gamma rays and measure cosmic-ray composition.

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Identity

Aliases
HEAO-3HEAO-CHigh Energy Astronomy Observatory 3
Name
HEAO-3
Status
completed

Details

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Description
HEAO-3 was NASA's third High Energy Astronomy Observatory, launched into low Earth orbit on September 20, 1979 to survey hard X-rays and gamma rays and measure cosmic-ray composition.
Destination
Low Earth orbit
End Date
1981-05-29
Outcome
HEAO-3 completed its high-energy sky survey and cosmic-ray measurements, including a high-resolution gamma-ray line survey, before ending operations in May 1981.
Start Date
1979-09-20
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Creation Time
August 1, 2026 at 16:27:42 UTC
Updated Time
August 1, 2026 at 16:27:42 UTC

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