| Mission type | Communications |
|---|---|
| Operator | Intelsat |
| COSPAR ID | 1971-006A |
| SATCAT no. | 04881 |
| Mission duration | 7 years (planned) |
| Spacecraft properties | |
| Bus | HS-312 |
| Manufacturer | Hughes Aircraft |
| Launch mass | 1,414 kilograms (3,117 lb) |
| BOL mass | 730 kilograms (1,610 lb) |
| Start of mission | |
| Launch date | January 26, 1971, 00:36:03 UTC[1] |
| Rocket | Atlas SLV-3C Centaur-D |
| Launch site | Cape Canaveral LC-36A |
| Orbital parameters | |
| Reference system | Geocentric[2] |
| Regime | Geostationary[2] |
| Eccentricity | 0.00645[2] |
| Perigee altitude | 35,801 kilometers (22,246 mi)[2] |
| Apogee altitude | 36,349 kilometers (22,586 mi)[2] |
| Inclination | 0.6°[2] |
| Period | 1,450.8 minutes[2] |
| Epoch | January 26, 1971[2] |
| Transponders | |
| Band | 12 IEEE C-band |
| Bandwidth | 40 MHz |
Intelsat IV | |
Intelsat IV F-2 was a geostationary communication satellite built by Hughes and owned by Intelsat. The satellite was based on the HS-312 platform and its estimated useful life was 7 years.