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Intelsat III F-2

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Title: Intelsat III F-2  
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Subject: List of Intelsat satellites, Intelsat III F-1, Intelsat Americas, Intelsat 901, Intelsat 15
Collection: Intelsat Satellites, Spacecraft Launched in 1968
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Intelsat III F-2

Intelsat III F-2
Mission type Communications
Operator Intelsat
COSPAR ID 1968-116A
SATCAT № 3623
Mission duration 5 years planned
1 12 years achieved
Spacecraft properties
Spacecraft type Intelsat III
Manufacturer TRW
Launch mass 293 kilograms (646 lb)
BOL mass 151 kilograms (333 lb)
Power 183 watts
Start of mission
Launch date December 19, 1968, 00:32:00 (1968-12-19T00:32Z) UTC[1]
Rocket Delta M
Launch site Cape Canaveral LC-17A
Contractor NASA
End of mission
Deactivated Did not recognize date. Try slightly modifying the date in the first parameter.
Orbital parameters
Reference system Geocentric
Regime Geosynchronous
Now supersynchronous
Longitude 24° west
Perigee 38,438 kilometers (23,884 mi)
Apogee 39,317 kilometers (24,430 mi)
Inclination 13.73 degrees
Period 26.60 hours
Epoch February 7, 2014, 07:19:51 UTC[2]

Intelsat III F-2 was a communications satellite operated by Intelsat. Launched in 1968 it was operated in geostationary orbit at a longitude of 24 degrees west for around eighteen months.[3]


  • Satellite 1
  • Launch 2
  • Orbit 3
  • See also 4
  • References 5


The second of eight Intelsat III satellites to be launched, Intelsat III F-2 was built by TRW. It was a 293-kilogram (646 lb) spacecraft, with its mass reducing to 151 kilograms (333 lb) by entry into service as it burned propellant to reach its final orbit. The satellite carried an SVM-2 apogee motor for propulsion and was equipped with two transponders powered by body-mounted solar cells generating 183 watts of power.[3] It was designed for a five-year service life.[4]


The launch of Intelsat III F-2 made use of a Delta M rocket flying from Launch Complex 17A at the Cape Canaveral Air Force Station. The launch took place at 00:32:00 UTC on December 19, 1968, with the spacecraft entering a geosynchronous transfer orbit.[1] Intelsat III F-2 subsequently fired its apogee motor to achieve geostationary orbit. It was operated at a longitude of 24° west, over Brazil; however it ceased operations after only a year and a half in orbit, in mid-1971.[5]


Intelsat III F-2 remains in orbit as a derelict satellite. As of February 7, 2014 it was in an orbit with a perigee of 38,438 kilometers (23,884 mi), an apogee of 39,317 kilometers (24,430 mi), inclination of 13.73 degrees and an orbital period of 26.60 hours.[2]

See also


  1. ^ a b
  2. ^ a b
  3. ^ a b
  4. ^
  5. ^
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