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Intelsat III F-5

From Wikipedia, the free encyclopedia

Intelsat III F-5
Mission typeCommunications
OperatorIntelsat
COSPAR ID1969-064A
SATCAT no.04051
Mission duration5 years planned
Failed to orbit
Spacecraft properties
ManufacturerTRW
Launch mass293 kilograms (646 lb)
BOL mass151 kilograms (333 lb)
Power183 W
Start of mission
Launch dateJuly 26, 1969, 02:06 (1969-07-26UTC02:06Z) UTC[1]
RocketDelta M
Launch siteCape Canaveral LC-17A
End of mission
DeactivatedOctober 14, 1988 (1988-10-15)
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Eccentricity0.07326
Perigee altitude252 kilometers (157 mi)
Apogee altitude1,301 kilometers (808 mi)
Inclination30.3°
Period115.3 minutes
EpochJuly 26, 1969
Intelsat III
 

Intelsat III F-5 was a communications satellite intended to be operated by Intelsat. Launched towards geostationary orbit in 1969 it failed to achieve orbit.

Design

The first of eight Intelsat III satellites to be launched, Intelsat III F-5 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.[2] It had a design life of five years and carried an SVM-2 apogee motor for propulsion.[3]

Launch

Intelsat III F-5 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 July 26, 1969, with the spacecraft bound for a geosynchronous transfer orbit.[1]

Due to a failure in the third phase of the launch process made the satellite not reach the desired orbit.

See also

References

  1. ^ a b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved April 21, 2017.
  2. ^ Wade, Mark. "Intelsat 3". Encyclopedia Astronautica. Retrieved April 21, 2017.
  3. ^ Krebs, Gunter. "Intelsat-3". Gunter's Space Page. Retrieved April 21, 2017.
This page was last edited on 17 January 2021, at 22:03
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