Engineering:Sentinel-2B

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Short description: European optical imaging satellite
Sentinel-2B
Sentinel 2-IMG 5873-white (crop).jpg
Model of a Sentinel 2 satellite
Mission typeEarth observation
OperatorEuropean Space Agency (ESA)
COSPAR ID2017-013A
SATCAT no.42063
WebsiteSentinel-2 (ESA)
Mission duration7 years (planned)[1]
6 years, 11 months, 10 days (elapsed)
Spacecraft properties
Spacecraft typeSentinel-2
ManufacturerAirbus Defence and Space
Launch mass1,140 kilograms (2,510 lb)
Dry mass1,017 kilograms (2,242 lb)
Dimensions3.4 by 1.8 by 2.35 metres (11.2 ft × 5.9 ft × 7.7 ft)
Power1700 watts
Start of mission
Launch date7 March 2017, 01:49:24 UTC[2]
RocketVega (VV-09)
Launch siteKourou, SLV
ContractorArianespace
Orbital parameters
Reference systemGeocentric orbit[3]
RegimeLow Earth orbit
Altitude780 km
Inclination98.56°
Period100.45 minutes
Transponders
BandS-band (TT&C support),
X-band and optical laser through European Data Relay System (EDRS) (data acquisition)
Bandwidth64 kbit/s upload (S-band),
128 kbit/s - 2 Mbit/s download
(S-band),
520 Mbit/s download
(X-band / Optical)
Instruments
Multi-Spectral Imager (MSI)
 

Sentinel-2B is a European optical imaging satellite that was launched on 7 March 2017. It is the second Sentinel-2 satellite launched as part of the European Space Agency's Copernicus Programme, and its orbit will be phased 180° against Sentinel-2A. The satellite carries a wide swath high-resolution multispectral imager with 13 spectral bands. It will provide information for agriculture and forestry, among others allowing for prediction of crop yields.[4]

Mission history

A €105 million contract for the construction of the spacecraft was signed in March 2010 by ESA's Director of Earth Observation Programmes and the CEO of Astrium Satellites.[5] It was completed in June 2016,[6][7] and the satellite was transported to the European Space Research and Technology Centre (ESTEC) for the test campaign.[8][9]

Launch

The spacecraft arrived at the Centre Spatial Guyanais on 6 January 2017 for pre-launch operations.[10]

Launch took place at the nominal time of 01:49:24 UTC on 7 March 2017 on board Vega flight VV09. The spacecraft was injected into its target orbit at 02:47:21 UTC.[2][11]

References

  1. "Sentinel-2: The Operational Compernicus Optical High Resolution Land Mission". European Space Agency. 2013. http://esamultimedia.esa.int/docs/S2-Data_Sheet.pdf. 
  2. 2.0 2.1 Clark, Stephen (7 March 2017). "Environmental sentinel launched from French Guiana". Spaceflight Now. https://spaceflightnow.com/2017/03/07/environmental-sentinel-launched-from-french-guiana/. 
  3. "Sentinel 2B - Orbit". Heavens-Above. 9 March 2017. http://heavens-above.com/orbit.aspx?satid=42063. 
  4. "Sentinel-2B Launch Preparations Off to a Flying Start". European Space Agency. 12 January 2017. http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/Sentinel-2/Sentinel-2B_launch_preparations_off_to_a_flying_start. 
  5. "Astrium to build ESA's second Sentinel-2 satellite for GMES". European Space Agency. 31 March 2010. http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/Astrium_to_build_ESA_s_second_Sentinel-2_satellite_for_GMES. 
  6. "Airbus DS completes Sentinel-2B – Satellite News Digest". SupremeSAT. 16 June 2016. http://www.supremesat.com/airbus-ds-completes-sentinel-2b-satellite-news-digest/. 
  7. "Airbus Defence and Space completes second Copernicus "Eye"" (Press release). Airbus Defence and Space. 15 June 2016. Retrieved 1 February 2017.
  8. Porter, G. (21 June 2016). "Sentinel-2B entering LSS". European Space Agency. https://www.flickr.com/photos/europeanspaceagency/27225821014. 
  9. "Noordwijk Witnesses Successful Testing Of Sentinel-2B". Sat News. 17 November 2016. http://satnews.com/story.php?number=1769705059. 
  10. Rider, Honora (12 January 2017). "Sentinel-2B unveiled". European Space Agency. http://blogs.esa.int/eolaunches/2017/01/12/sentinel-2b-unveiled/. 
  11. "Launch Kit: VV09, Sentinel-2B". Arianespace. 27 February 2017. http://www.arianespace.com/wp-content/uploads/2017/02/VV09-launchkit-en.pdf. 

External links