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Meteosat 8
European weather satellite (2002–2022)
European weather satellite (2002–2022)
| Field | Value |
|---|---|
| name | Meteosat 8 |
| image | Meteosat Geostasjonær satellitt.jpg |
| image_caption | Artist's view of a Second Generation Meteosat (MSG) |
| mission_type | Weather satellite |
| operator | EUMETSAT/ESA |
| COSPAR_ID | 2002-040B |
| SATCAT | 27509 |
| mission_duration | ≥ 14 years |
| spacecraft_type | MSG |
| manufacturer | Alcatel Space |
| launch_mass | 2040 kg |
| power | 600 watts |
| instruments | DCS (Data Collection Service) |
| GEOSAR (Geostationary Search and Rescue) | |
| GERB (Geostationary Earth Radiation Budget) | |
| SEVIRI (Spinning Enhanced Visible Infra-Red Imager) | |
| launch_date | UTC |
| launch_rocket | Ariane 5G V155 |
| launch_site | Kourou ELA-3 |
| launch_contractor | Arianespace |
| disposal_type | raised 740km above Geostationary Ring, spin reduced to 20rpm, propulsion systems passivated, electronics deactivated |
| deactivated | October 2022 |
| last_contact | |
| orbit_reference | Geocentric |
| orbit_regime | Geostationary |
| orbit_period | 24 hours |
| orbit_longitude | 3.4° West (2004-2008) |
| 9.5° East (2008-2013) | |
| 3.5° East (2013-2016) | |
| 41.5° East (2016-2022) | |
| apsis | gee |
GEOSAR (Geostationary Search and Rescue) GERB (Geostationary Earth Radiation Budget) SEVIRI (Spinning Enhanced Visible Infra-Red Imager)
9.5° East (2008-2013) 3.5° East (2013-2016) 41.5° East (2016-2022)
Meteosat 8 was a weather satellite, also known as MSG 1. The Meteosat series are operated by EUMETSAT under the Meteosat Transition Programme (MTP) and the Meteosat Second Generation (MSG) program. Notable for imaging the first meteor to be predicted to strike the Earth, 2008 TC3.{{cite web
While Meteosat 8 meteorological instruments are working, solid state power amplifier SSPA-C failed in October 2002.
On 22 May 2007, the satellite experienced an unexpected orbit change. This was initially assessed as due to a hit by an unknown object, but that was later assessed not to be credible.{{cite web
In May 2012 Meteosat-8 switched to operating in an Earth Sensor Mode due to a problem with the Sun sensor data on board. After modifying the ground image processing system the Rapid Scan Service image quality was restored back to nominal.{{cite web
On 29 June 2016, EUMETSAT approved the proposal of relocating Meteosat-8 to 41.5°E, for the continuation of the Indian Ocean Data Coverage (IODC), replacing Meteosat-7. Meteosat-8 arrived at 41.5°E on 21 September. The distribution of IODC Meteosat-8 data, in parallel to Meteosat-7 data, started on 20 October. On 1 February 2017, Meteosat-8 replaced Meteosat-7 as the official EUMETSAT geostationary satellite for the Indian Ocean.
Meteosat-8 had used up most of its available fuel by 2020, leaving the remaining fuel to be used for safe removal to an altitude 740km above the geostationary ring and slowing the satellite's spin rate. Although not designed to comply with the more recent ISO-24113 guidelines for space debris mitigation, EUMETSAT chose to do so in the case of Meteosat-8 as it had done so the year before for the polar-orbiting Metop-A. Meteosat-8 was finally decommissioned in October 2022 after twenty years in orbit.
References
References
- (29 June 2016). "EUMETSAT Approves New Strategy and Move of Meteosat-8 Over the Indian Ocean". EUMETSAT.
- (January 2018). "Indian Ocean AMVs: Moving to Meteosat-8 and assessing alternative options".
- (2017-02-01). "Following a decision of the EUMETSAT Council in June 2016, Meteosat-8 replaced Meteosat-7 as the EUMETSAT geostationary satellite observing the Indian Ocean today.". EUMETSAT.
- (7 July 2016). "The distribution of IODC Meteosat-8 data, in parallel to Meteosat-7 data, is planned to start in October.". EUMETSAT.
- "Where old satellites go to die".
- (15 April 2020). "Meteosat Second Generation (MSG) provides images of the full Earth disc, and data for weather forecasts.".
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