HEAO-1
HEAO-1 was a NASA X-ray survey mission launched into a nearly circular low Earth orbit on August 12, 1977. Its scanning observatory mapped the high-energy sky repeatedly and monitored sources near the ecliptic poles until January 1979.
Follow this mission
Alerts are unavailable because this mission is no longer active.
Identity
- Aliases
- HEAO-1HEAO-AHigh Energy Astronomy Observatory 1
- Name
- HEAO-1
- Status
- completed
Details
- Astronauts
- -
- Description
- HEAO-1 was a NASA X-ray survey mission launched into a nearly circular low Earth orbit on August 12, 1977. Its scanning observatory mapped the high-energy sky repeatedly and monitored sources near the ecliptic poles until January 1979.
- Destination
- Nearly circular Earth orbit with approximately 445 km apogee and 22.75° inclination; scanning X-ray survey
- End Date
- 1979-01-09
- Outcome
- HEAO-1 completed its principal all-sky survey and ended operations after its attitude-control gas was exhausted.
- Programs
- -
- Start Date
- 1977-08-12
- Vehicle Families
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 16:05:11 UTC
- Updated Time
- August 21, 2026 at 17:22:21 UTC
Other
- Affiliations
- Space Stations
- -
- Vehicles