| Operator | COMSAT[1]→Inmarsat |
|---|---|
| Cospar id | 1976-017A |
| Satcat | 08697 |
| Mission duration | 21 years |
| Manufacturer | Hughes |
| Bol mass | 362 kg (798 lb) |
| Launch mass | 665.0 kg (1,466.1 lb) |
| Launch date | February 19, 1976, 22:32 UTC[2] |
| Launch rocket | Delta 2914 |
| Launch site | Cape Canaveral LC-17B |
| Deactivated | April 1, 1997 |
| Orbit epoch | February 19, 1976[3] |
| Orbit reference | Geocentric |
| Orbit regime | Geostationary |
| Orbit apoapsis | 35,703 kilometres (22,185 mi)[3] |
| Orbit periapsis | 35,867 kilometres (22,287 mi)[3] |
| Orbit inclination | 2.4°[3] |
| Orbit period | 1,436.1 minutes[3] |
| Orbit eccentricity | 0.00195[3] |
| Orbit longitude | 105° W |
| Apsis | gee |
| Trans band | 1 L band, 1 C band and 3 UHF |
| Programme | Marisat |
| Previous mission | None |
| Next mission | Marisat 2 |
Marisat 1 (or Marisat F1) is a communications satellite operated by COMSAT. Marisat 1 was the first of a series of Marisat COMSAT maritime communications satellites.
Satellite
The spacecraft was capable of transmitting voice, data, facsimile and Telex messages to and from ships at sea through special shore stations at Southbury, Connecticut and Saint Paul, CA, which were interconnected with existing domestic terrestrial networks. The system was initially utilized primarily by the U.S. Navy, with a limited amount of satellite capacity provided in different frequency bands (L band), through separate satellite transponders, for maritime communications services to commercial entities and other interested users. At such time as the Navy's requirements terminate (late 1970s) substantial satellite capacity will become available for commercial maritime purposes. Following launch, satellite operation was nominal. It was placed in geosynchronous orbit at 15 degrees west and using propulsion FW-5.
Launch
Marisat 1 was launched by a Delta rocket from Cape Canaveral Air Force Station, Florida, at 22:32 UTC on February 19, 1976.[3]
See also
References
- ^ Krebs, Gunter. "Marisat 1, 2, 3". Gunter's Space Page. Retrieved May 23, 2017.
- ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved May 23, 2017.
- ^ "Marisat 1". NSSDC Master Catalog. Retrieved May 23, 2017.