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// astronomy · 1989

Cosmic Background Explorer

Decommissioned NASA space observatory. Cosmic Background Explorer was launched on November 18, 1989 aboard a Delta 5920-8 from Vandenberg. Latest status in GCAT: in orbit.

COSPAR 1989-089ANORAD 20322United States

Identity

Name in GCAT
COBE
Common name
Cosmic Background Explorer
International designator
1989-089A
NORAD catalog number
20322
GCAT identifier
S20322
UN registration
ST/SG/SER.E/220

Mission

Mission type
Astronomy
Use
Civil government
Program
DeltaEx
Owner
GSFC
Country
United States
Builder
NASA Goddard Space Flight Center
Platform (bus)
COBE

Launch

Date
November 18, 1989 · 14:34 UTC
Launch record
1989-089Success
Rocket
Delta 5920-8
Spaceport
Vandenberg · pad SLC2W

Orbit and fate

Orbit class (GCAT)
LEO/S
Perigee
886 km
Apogee
896 km
Inclination
99.02°
Status
In orbit
Last known active
May 1, 1997
End of operations
December 1993

Size

Mass
2,206 kg
Dry mass
2,206 kg
Length
4.9 m
Diameter
2.20 m
Span
8.4 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q49445 (CC0).