GOES 7
GOES 7
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 Artist's impression of a GOES-D series satellite | |
| Mission type | Weather satellite |
|---|---|
| Operator | NOAA / NASA (1987-1999) Peacesat (1999-2012) |
| COSPAR ID | 1987-022A |
| SATCAT no. | 17561 |
| Mission duration | 3-7 years (planned) 25 years (achieved) |
| Spacecraft properties | |
| Bus | HS-371 |
| Manufacturer | Hughes |
| Start of mission | |
| Launch date | 26 February 1987, 23:05 (1987-02-26UTC23:05Z) UTC |
| Rocket | Delta 3914 |
| Launch site | Cape Canaveral LC-17A |
| Contractor | McDonnell Douglas |
| End of mission | |
| Disposal | Decommissioned |
| Deactivated | 12 April 2012 (2012-04-13) |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 75° West (1987-1989) 98° West (1989-1992) 112° West (1992-1995) 135° West (1995-1999) 95° West (1999) 175° West (1999-2012) |
| Slot | GOES-EAST (1987-1989) GOES-WEST (1995-1999) |
| Eccentricity | 0.0002306 |
| Perigee | 35,879 kilometres (22,294 mi) |
| Apogee | 35,898 kilometres (22,306 mi) |
| Inclination | 15.09° |
| Period | 24 hours |
GOES 7, known as GOES-H before becoming operational, is an American satellite. It was originally built as a weather satellite, and formed part of the US National Oceanic and Atmospheric Administration's Geostationary Operational Environmental Satellite system. Originally built as a ground spare,[1] GOES-H was launched in 1987 due to delays with the next series of satellites. It was operated by NOAA until 1999, before being leased to Peacesat, who use it as a communications satellite.[2] As of 2009, it was operational over the Pacific Ocean, providing communications for the Pacific Islands. On April 12, 2012, the spacecraft was finally decommissioned and moved to a graveyard orbit.[3]
Contents
1 Launch
2 Operations
3 See also
4 References
Launch[edit]
GOES-H was launched aboard a McDonnell Douglas Delta 3914 rocket, flying from Launch Complex 17A at the Cape Canaveral Air Force Station.[4] The launch occurred at 23:05 GMT on 26 February 1987.[4] The launch had originally been scheduled for late 1986, but was delayed after GOES-G failed to achieve orbit.[5] It was built by Hughes Space and Communications, based on the HS-371 satellite bus,[6] and was the last of five GOES-D series satellites to be launched.[7]
Operations[edit]
GOES 7 image
Following launch, GOES 7 was positioned in geostationary orbit at a longitude of 75° West,[8] where it underwent on-orbit testing before being activated in the GOES-EAST slot of the constellation.
Due to the loss of GOES-G, and delays in the development of the GOES-I series spacecraft, no reserve satellites were available in the late 1980s and early 1990s. After the imager on the GOES 6 satellite failed in 1989, GOES 7 was left as the only operational GOES satellite.[9] It was moved to 98° West to cover the whole of the continental United States. In 1992, Meteosat 3 was leased from Eumetsat to take over GOES-EAST operations, allowing GOES 8 to be moved 112° West. When GOES 8 entered service in 1995, it replaced Meteosat 3, and GOES 7 was moved to the GOES-WEST position at 135° West. It remained in service until its retirement from service in 1996,[10] at which time it was moved to 95° West. It was then transferred to Peacesat, and positioned at 175° West[11][12] until its final retirement and disposal in 2012.
It is the only satellite to have been operated as both GOES-EAST and GOES-WEST in the course of normal operations. GOES 10 has been used as both GOES-EAST and GOES-WEST, however its operations as GOES-EAST were as a backup during an outage of GOES 12, and the satellite was not moved to the GOES-EAST orbital position.
See also[edit]
- 1987 in spaceflight
- List of GOES satellites
References[edit]
^ "International Satellite Directory - Hughes Aircraft - GOES". Flight International. 1985-01-12. p. 45..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
^ "GOES-7 Satellite". Peacesat. Retrieved 2009-06-13.
^ "NOAA retires GOES-7 after 25 years as a weather and communications satellite". NOAA News. NOAA. 2012-04-12. Retrieved 2014-06-02.
^ ab McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-06-13.
^ "Atlas grounding follows Delta failure". Flight International. 1986-05-17. p. 44.
^ Krebs, Gunter. "GOES 4, 5, 6, G, 7". Gunter's Space Page. Retrieved 2009-06-13.
^ Wade, Mark. "GOES". Encyclopedia Astronautica. Retrieved 2009-06-13.
^ Sample, Sharron. "GOES-7". Encyclopedia Astronautica. Retrieved 2009-06-13.
^ "GOES 'Fiasco' causes US crisis". Flight International. 1991-07-16. p. 21.
^ "GOES-7". ESE 40th Anniversary. NASA. 1999-04-22. Retrieved 2009-06-23.
^ "GOES-7 TRANSITIONED TO HAWAII FOR USE BY PEACESAT STATION, NOAA ANNOUNCES". NOAA. 1999-06-15. Archived from the original on 2016-12-11. Retrieved 2009-06-13.
^ "Goes 07". TSE. Retrieved 2009-06-13.
Geostationary Operational Environmental Satellites | ||
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List of GOES satellites
Categories:
- 1987 in spaceflight
- Spacecraft launched in 1987
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