Intelsat V F-9 → Intelsat 509
Mission typeCommunication
COSPAR ID1984-057A[1]
SATCAT no.14077
Mission duration7 years (planned)
Launch failure
Spacecraft properties
BusIntelsat-V bus
ManufacturerFord Aerospace
Launch mass1,928.2 kilograms (4,251 lb)[2]
BOL mass1,012 kilograms (2,231 lb)[2]
Start of mission
Launch dateJune 9, 1984, 23:03 (1984-06-09UTC23:03Z) UTC[3]
RocketAtlas G
Launch siteCape Canaveral LC-36B
Orbital parameters
Reference systemGeocentric
Intelsat V

Intelsat 509, previously named Intelsat V F-9, was a communications satellite operated by Intelsat. Launched in 1984, it was the ninth of fifteen Intelsat V satellites to be launched. The Intelsat V series was constructed by Ford Aerospace, based on the Intelsat-V satellite bus. Intelsat V F-9 was part of an advanced series of satellites designed to provide greater telecommunications capacity for Intelsat's global network. He also carried a Maritime Communications Services (MCS) package for Inmarsat. However, the launch vehicle failed to put the satellite into a useful orbit.

The satellite launch took place on June 9, 1984, at 23:03 UTC, by means of an Atlas-Centaur G-D1AR vehicle from the Cape Canaveral Air Force Station, Florida, United States. It had a launch mass of 1,928 kg.[4] The Intelsat 509 was equipped with 4 Ku-band transponders more 21 C-band transponders for 12,000 audio circuits and 2 TV channels.


  1. ^ "INTELSAT 5 F-9". National Space Science Data Center. Retrieved April 23, 2017.
  2. ^ a b "Intelsat-5". Gunter's Space Page. Retrieved April 23, 2017.
  3. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved April 23, 2017.
  4. ^ "INTELSAT 509". TSE. Retrieved April 23, 2017.