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Intelsat III F-6

From Wikipedia, the free encyclopedia

Intelsat III F-6
Mission typeCommunications
COSPAR ID1970-003A
SATCAT no.04297
Mission duration5 years (planned)
Spacecraft properties
ManufacturerTRW Inc.
Launch mass293 kilograms (646 lb)
BOL mass151 kilograms (333 lb)
Power183 W
Start of mission
Launch dateJanuary 15, 1970, 00:16:03 (1970-01-15UTC00:16:03Z) UTC[1]
RocketDelta M
Launch siteCape Canaveral LC-17A
Orbital parameters
Reference systemGeocentric[2]
Perigee altitude35,773 kilometers (22,228 mi)[2]
Apogee altitude35,801 kilometers (22,246 mi)[2]
Period1,436.1 minutes[2]
EpochJanuary 15, 1970[2]
Intelsat III

Intelsat III F-6 was a communications satellite owned by Intelsat. The satellite had an estimated useful life of 5 years.


The first of eight Intelsat III satellites to be launched, Intelsat III F-6 was built by TRW. It was a 293-kilogram (646 lb) spacecraft equipped with two transponders to be powered by body-mounted solar cells generating 183 watts of power.[3] It had a design life of five years and carried an SVM-2 apogee motor for propulsion.[4]


Intelsat III F-6 was launched on the maiden flight of the Delta M rocket, flying from Launch Complex 17A at the Cape Canaveral Air Force Station. The launch took place on January 15, 1970, with the spacecraft bound for a geosynchronous transfer orbit.[1]

See also


  1. ^ a b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved April 21, 2017.
  2. ^ a b c d e f g h NASA, Goddard Space Flight Center. "INTELSAT 3 F-6". NSSDC Master Catalog. Retrieved April 21, 2017.
  3. ^ Wade, Mark. "Intelsat 3". Encyclopedia Astronautica. Retrieved April 21, 2017.
  4. ^ Krebs, Gunter. "Intelsat-3". Gunter's Space Page. Retrieved April 21, 2017.
This page was last edited on 1 January 2021, at 20:12
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