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Satcom 3R


Designation 12967 / 81114A
Launch date 20 Nov 1981
Country of origin United States
Mission Telecommunications
Geostationary orbit 131°W
Launch vehicle Thor Delta #158
Launch site Cape Canaveral

End of life

Out of service yes

External resources

sat-index articles

Technical data


Prime contractor GE Astro Space
Platform GE-3000
Mass at launch 1070 kg
Mass in orbit approx. 600 kg
Length 1.6 m
Width 1.27 m
Height 1.29 m
Solar array 11.2 m span
Stabilization 3-axis
DC power  
Design lifetime 10 years


Main transponders 18+6
Backup transponders 3+1
Power (18+3) transponders of 5.5 W
(6+1) transponders of 8.5 W
Bandwidth 36 MHz
EIRP max 37 dBW
Polarization linear H/V

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