Marisat 1: Difference between revisions
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'''Marisat 1''' (or '''Marisat F1''') is a [[communications satellite]] operated by [[COMSAT]]. Marisat 1 was the first of a series of COMSAT maritime [[communications]] [[satellite]]s. |
'''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]] [[satellite]]s. |
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== Satellite == |
== Satellite == |
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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 [[transponder]]s, 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'''. |
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 [[transponder]]s, 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'''. |
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== Launch == |
== Launch == |
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Marisat 1 was launched by a [[Delta (rocket family)|Delta]] rocket from [[Cape Canaveral Air Force Station]], [[Florida]], at 22:32 UTC on February 19, 1976.<ref name="nssdc">{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/ |
Marisat 1 was launched by a [[Delta (rocket family)|Delta]] rocket from [[Cape Canaveral Air Force Station]], [[Florida]], at 22:32 UTC on February 19, 1976.<ref name="nssdc">{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1976-017A|title=Marisat 1|work=NSSDC Master Catalog|accessdate=May 23, 2017}} {{PD-notice}}</ref> |
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== See also == |
== See also == |
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Latest revision as of 03:53, 7 August 2020
| Mission type | Communications |
|---|---|
| Operator | COMSAT[1]→Inmarsat |
| COSPAR ID | 1976-017A |
| SATCAT no. | 08697 |
| Mission duration | 21 years |
| Spacecraft properties | |
| Spacecraft type | HS-356 |
| Manufacturer | Hughes |
| Launch mass | 665.0 kg (1,466.1 lb) |
| BOL mass | 362 kg (798 lb) |
| Start of mission | |
| Launch date | February 19, 1976, 22:32 UTC[2] |
| Rocket | Delta 2914 |
| Launch site | Cape Canaveral LC-17B |
| End of mission | |
| Deactivated | April 1, 1997 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 105° W |
| Eccentricity | 0.00195[3] |
| Perigee altitude | 35,867 kilometres (22,287 mi)[3] |
| Apogee altitude | 35,703 kilometres (22,185 mi)[3] |
| Inclination | 2.4°[3] |
| Period | 1,436.1 minutes[3] |
| Epoch | February 19, 1976[3] |
| Transponders | |
| Band | 1 L band, 1 C band and 3 UHF |
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[edit]
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[edit]
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[edit]
References[edit]
- ^ 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.
- ^ a b c d e f g "Marisat 1". NSSDC Master Catalog. Retrieved May 23, 2017.
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