High Energy Astronomy Observatory 1

Space observatory. High Energy Astronomy Observatory 1 was launched on August 12, 1977 aboard a Atlas SLV-3D Centaur from Cape Canaveral & Kennedy. Latest status in GCAT: reentered (orbital decay) (Mar 15, 1979).

COSPAR 1977-075ANORAD 10217United States

Identity

Name in GCAT: HEAO 1
Common name: High Energy Astronomy Observatory 1
Payload designation: HEAO A
International designator: 1977-075A
NORAD catalog number: 10217
GCAT identifier: S10217
UN registration: ST/SG/SER.E/005

Mission

Mission type: Astronomy
Use: Civil government
Program: HEAO
Owner: NASA MSFC
Country: United States
Builder: TRW Inc.
Platform (bus): HEAO

Launch

Date: August 12, 1977 · 06:29 UTC
Launch record: 1977-075Success
Rocket: Atlas SLV-3D Centaur
Spaceport: Cape Canaveral & Kennedy · pad LC36B

Orbit and fate

Orbit class (GCAT): LLEO/E
Perigee: 428 km
Apogee: 449 km
Inclination: 22.76°
Status: Reentered (orbital decay)
Status date: March 15, 1979
Last known active: Jan 10, 1979
End of operations: Jan 10, 1979

Size

Mass: 2,514 kg
Dry mass: 2,393 kg
Length: 4.2 m
Diameter: 2.70 m
Span: 6.3 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q265594 (CC0).