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Meteosat 8

European weather satellite (2002–2022)


European weather satellite (2002–2022)

FieldValue
nameMeteosat 8
imageMeteosat Geostasjonær satellitt.jpg
image_captionArtist's view of a Second Generation Meteosat (MSG)
mission_typeWeather satellite
operatorEUMETSAT/ESA
COSPAR_ID2002-040B
SATCAT27509
mission_duration≥ 14 years
spacecraft_typeMSG
manufacturerAlcatel Space
launch_mass2040 kg
power600 watts
instrumentsDCS (Data Collection Service)
GEOSAR (Geostationary Search and Rescue)
GERB (Geostationary Earth Radiation Budget)
SEVIRI (Spinning Enhanced Visible Infra-Red Imager)
launch_dateUTC
launch_rocketAriane 5G V155
launch_siteKourou ELA-3
launch_contractorArianespace
disposal_typeraised 740km above Geostationary Ring, spin reduced to 20rpm, propulsion systems passivated, electronics deactivated
deactivatedOctober 2022
last_contact
orbit_referenceGeocentric
orbit_regimeGeostationary
orbit_period24 hours
orbit_longitude3.4° West (2004-2008)
9.5° East (2008-2013)
3.5° East (2013-2016)
41.5° East (2016-2022)
apsisgee

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

  1. (29 June 2016). "EUMETSAT Approves New Strategy and Move of Meteosat-8 Over the Indian Ocean". EUMETSAT.
  2. (January 2018). "Indian Ocean AMVs: Moving to Meteosat-8 and assessing alternative options".
  3. (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.
  4. (7 July 2016). "The distribution of IODC Meteosat-8 data, in parallel to Meteosat-7 data, is planned to start in October.". EUMETSAT.
  5. "Where old satellites go to die".
  6. (15 April 2020). "Meteosat Second Generation (MSG) provides images of the full Earth disc, and data for weather forecasts.".
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