| Mission type | Communications |
|---|---|
| Operator | Intelsat |
| COSPAR ID | 1969-064A |
| SATCAT no. | 04051 |
| Mission duration | 5 years planned Failed to orbit |
| Spacecraft properties | |
| Manufacturer | TRW |
| Launch mass | 293 kilograms (646 lb) |
| BOL mass | 151 kilograms (333 lb) |
| Power | 183 W |
| Start of mission | |
| Launch date | July 26, 1969, 02:06 UTC [1] |
| Rocket | Delta M |
| Launch site | Cape Canaveral LC-17A |
| End of mission | |
| Deactivated | October 14, 1988 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Eccentricity | 0.07326 |
| Perigee altitude | 252 kilometers (157 mi) |
| Apogee altitude | 1,301 kilometers (808 mi) |
| Inclination | 30.3° |
| Period | 115.3 minutes |
| Epoch | July 26, 1969 |
Intelsat III | |
Intelsat III F-5 was a communications satellite intended to be operated by Intelsat. Launched towards geostationary orbit in 1969 it failed to achieve orbit.
Design
The fifth of eight Intelsat III satellites to be launched, Intelsat III F-5 was built by TRW. It was a 293-kilogram (646 lb) spacecraft equipped with two transponders to be powered by body-mounted solar cells generating 183 watts of power. [2] It had a design life of five years and carried an SVM-2 apogee motor for propulsion. [3]
Launch
Intelsat III F-5 was launched by a Delta M rocket, flying from Launch Complex 17A at the Cape Canaveral Air Force Station. The launch took place on July 26, 1969, with the spacecraft bound for a geosynchronous transfer orbit. [1]
Due to a failure in the third phase of the launch process, the satellite did not reach the desired orbit.
See also
References
- ^ a b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved April 21, 2017.
- ^ Wade, Mark. "Intelsat 3". Encyclopedia Astronautica. Archived from the original on February 23, 2002. Retrieved April 21, 2017.
- ^ Krebs, Gunter. "Intelsat-3". Gunter's Space Page. Retrieved April 21, 2017.