| Mission type | Communication | 
|---|---|
| Operator | COMSAT / INTELSAT | 
| COSPAR ID | 1981-119A [1] | 
| SATCAT no. | 12994 | 
| Mission duration | 7 years (planned) | 
| Spacecraft properties | |
| Bus | Intelsat V | 
| Manufacturer | Ford Aerospace | 
| Launch mass | 1928 kg | 
| Dry mass | 1012 kg | 
| Dimensions | 1.66 x 2.1 x 1.77 metres | 
| Power | 1800 watts | 
| Start of mission | |
| Launch date | 15 December 1981, 23:35:00 UTC  | 
| Rocket | Atlas SLV-3D Centaur-D1AR (AC-55) | 
| Launch site | CCAFS, LC-36B | 
| Contractor | General Dynamics | 
| End of mission | |
| Disposal | Graveyard orbit | 
| Deactivated | January 1998 | 
| Orbital parameters | |
| Reference system | Geocentric orbit | 
| Regime | Geostationary orbit | 
| Longitude | 174.0° East (1981-1992) 177.0° West (1992-1995) 157.0° East (1995-1998)  | 
| Epoch | 15 December 1981 | 
| Transponders | |
| Band | 21 C-band 4 Ku-band  | 
Intelsat V   | |

Intelsat V F-3, then named Intelsat 503, was a communications satellite operated by COMSAT. Launched on 15 December 1981, it was the third 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-3 was part of an advanced series of satellites designed to provide greater telecommunications capacity for Intelsat's global network.
Satellite
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. The payload housed 21 C-band and 4 Ku-band transponders. It could accommodate 15,000 two-way voice circuits and two TV channels simultaneously. It had a launch mass of 1928 kg.[2] The satellite was deactivated in January 1998.
Launch
The satellite was successfully launched into space on 15 December 1981 at 23:35:00 UTC, by means of an Atlas SLV-3D Centaur-D1AR vehicle from the Cape Canaveral Air Force Station, Florida, United States.
See also
References
- ↑  "Display: Intelsat 5 F-3 1981-119A". NASA. 14 May 2020. Retrieved 30 June 2020. 
 This article incorporates text from this source, which is in the public domain. - ↑  "Display: Intelsat 5A F-15 1989-086A". NASA. 14 May 2020. Retrieved 30 June 2020. 
 This article incorporates text from this source, which is in the public domain.