(High Energy Astronomy Observatory 1)
(1977 X-ray observatory space mission)
The High Energy Astronomy Observatory 1 (HEAO-1) was a NASA
spacecraft observing X-rays.
It was launched in 1977 and functioned until 1979.
- LASS aka A1 - Large-area Sky Survey
- CXE aka A2 - Cosmic X-ray Experiment
- MC aka A3 - Modulation Collimator
- Hard X-ray / Low Energy gamma-ray Experiment aka A4
Among its accomplishments were X-ray sky surveys, such as the
HEAO A-1 X-ray Source Catalog.
HEAO-2 was a follow-on project.
|Prefix||Example||Survey/Catalog|| || |
|1H||1H 0323+342||HEAO-1||HEAO A-1 X-ray Source Catalog|| |
|H||H 2356-309||HEAO-1||various surveys on various instruments|| |