| Intelsat V F-9 → Intelsat 509 | |
| Mission Type: | Communication |
| Operator: | Intelsat |
| Cospar Id: | 1984-057A[1] |
| Satcat: | 14077 |
| Mission Duration: | 7 years (planned) Launch failure |
| Spacecraft Bus: | Intelsat-V bus |
| Manufacturer: | Ford Aerospace |
| Bol Mass: | 1012kg (2,231lb)[2] |
| Launch Mass: | 1928.2kg (4,251lb) |
| Launch Date: | UTC[3] |
| Launch Rocket: | Atlas G |
| Launch Site: | Cape Canaveral LC-36B |
| Orbit Epoch: | Planned |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Geostationary |
| Apsis: | gee |
| Programme: | Intelsat V |
| Previous Mission: | Intelsat V F-8 |
| Next Mission: | Intelsat VA F-10 |
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.