High Energy Astronomy Observatory 3
id:
high-energy-astronomy-observatory-3-214-3005641
title:
High Energy Astronomy Observatory 3
text:
The last of NASA's three High Energy Astronomy Observatories, HEAO 3 was launched 20 September 1979 on an Atlas-Centaur launch vehicle, into a nearly circular, 43.6 degree inclination low Earth orbit with an initial perigeum of 486.4 km.
The normal operating mode was a continuous celestial scan, spinning approximately once every 20 min about the spacecraft z-axis, which was nominally pointed at the Sun.
Total mass of the observatory at launch was 2,660.0 kilograms (5,864.3 lb). HEAO 3 included t
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/High_Energy_Astronomy_Observatory_3
date created:
2007-12-07T06:09:19Z
date modified:
2024-09-12T14:46:40Z
main entity:
{"identifier":"Q1190799","url":"https://www.wikidata.org/entity/Q1190799"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/c/c1/HEAO-3_observatory_artist%27s_view_0102165.jpg","width":1536,"height":1240}
fields total:
13
integrity:
15