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// communications · 1989

TDRS-4

Decommissioned American communications satellite. TDRS-4 was launched on March 13, 1989 aboard a Space Shuttle from Cape Canaveral & Kennedy. Latest status in GCAT: in orbit.

COSPAR 1989-021BNORAD 19883United States

Identity

Name in GCAT
TDRS 4
Common name
TDRS-4
Payload designation
TDRS D
International designator
1989-021B
NORAD catalog number
19883
GCAT identifier
S19883
UN registration
ST/SG/SER.E/212

Mission

Mission type
Communications
Use
Civil government
Program
TDRS
Owner
GSFC
Country
United States
Builder
TRW Inc.
Platform (bus)
TDRS

Launch

Date
March 13, 1989 · 14:57 UTC
Launch record
1989-021Success
Spaceport
Cape Canaveral & Kennedy · pad LC39B

Orbit and fate

Orbit class (GCAT)
GEO/S
Perigee
35,776 km
Apogee
35,788 km
Inclination
0.22°
Status
In orbit
Last known active
Dec 1, 2011
End of operations
Dec 1, 2011

Size

Mass
2,245 kg
Dry mass
1,673 kg
Length
1.3 m
Diameter
2.40 m
Span
17.4 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q7669869 (CC0).