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// communications · 1978

COMSTAR 3

COMSTAR 3 was launched on June 29, 1978 aboard a Atlas SLV-3D Centaur from Cape Canaveral & Kennedy. Latest status in GCAT: in orbit.

COSPAR 1978-068ANORAD 10975United States

Identity

Name in GCAT
Comstar 203
Common name
COMSTAR 3
Payload designation
Comstar D-3
International designator
1978-068A
NORAD catalog number
10975
GCAT identifier
S10975
UN registration
ST/SG/SER.E/016

Mission

Mission type
Communications
Use
Commercial
Program
Comstar
Owner
Comsat
Country
United States
Builder
Hughes Space and Comms. Co (Hughes Satellite Systems)
Platform (bus)
HS-351

Launch

Date
June 29, 1978 · 22:24 UTC
Launch record
1978-068Success
Spaceport
Cape Canaveral & Kennedy · pad LC36B

Orbit and fate

Orbit class (GCAT)
GEO/D
Perigee
35,467 km
Apogee
35,783 km
Inclination
0.06°
Status
In orbit
Last known active
May 21, 1986
End of operations
May 21, 1986

Size

Mass
748 kg
Dry mass
590 kg
Total mass with attached objects
1,490 kg
Length
3.5 m
Diameter
2.40 m
Span
6.3 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q18327620 (CC0).