Intelsat VA F-11


Intelsat VA F-11 → Intelsat 511
Mission typeCommunication
COSPAR ID1985-055A [1]
SATCAT no.15873
Mission duration7 years (planned)
Spacecraft properties
BusIntelsat VA
ManufacturerFord Aerospace
Launch mass1981 kg
Dry mass1098 kg [2]
Dimensions1.66 x 2.1 x 1.77 metres
Power1800 watts
Start of mission
Launch date30 June 1985, 00:44:00 UTC [3]
RocketAtlas G-Centaur D1AR (AC-64)
Launch siteCCAFS, LC-36B
ContractorGeneral Dynamics
End of mission
DisposalGraveyard orbit
DeactivatedAugust 2003
Orbital parameters
Reference systemGeocentric orbit [1]
RegimeGeostationary orbit
Longitude27.5° West (1985-1991) [4]
63.0 East (1991-1992)
177.0° East (1992-1995)
180.0° East (1995-1998)
29.5° West (1998-2003)
Epoch30 June 1985
Band26 C-band
6 Ku-band
Intelsat V

Intelsat VA F-11, then named Intelsat 511, was a communications satellite operated by Intelsat. Launched in 1985, it was the eleventh of fifteen Intelsat V satellites to be launched. The Intelsat VA series was constructed by Ford Aerospace, based on the Intelsat VA satellite bus. Intelsat VA F-11 was part of an advanced series of satellites designed to provide greater telecommunications capacity for Intelsat's global network.


The satellite was box-shaped, measuring 1.66 by 2.1 by 1.77 metres; solar arrays spanned 15.9 metres tip to tip. The arrays, supplemented by nickel-hydrogen batteries during eclipse, provided 1800 watts of power at mission onset, approximately 1280 watts at the end of its seven-year design life. The payload housed 26 C-band and 6 Ku-band transponders. It could accommodate 15,000 two-way voice circuits and two TV channels simultaneously. It also provided maritime communications for ships at sea.[5]


The satellite was successfully launched into space on 30 June 1985, at 00:44:00 UTC, by means of an Atlas G-Centaur-D1AR vehicle from the Cape Canaveral Air Force Station, Florida, United States. It had a launch mass of 1981 kg.[4] The satellite was deactivated in August 2003.


  1. ^ a b "Display: Intelsat 5A F-11 1985-055A". NASA. 14 May 2020. Retrieved 29 June 2020. This article incorporates text from this source, which is in the public domain.
  2. ^ "Intelsat-5A". Gunter's Space Page. Retrieved April 23, 2017.
  3. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved April 23, 2017.
  4. ^ a b "Intelsat 511". TSE. Retrieved 29 June 2020.
  5. ^ "Display: Intelsat 5A F-15 1989-086A". NASA. 14 May 2020. Retrieved 29 June 2020. This article incorporates text from this source, which is in the public domain.