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The Copernicus Sentinel 4 mission: a geostationary imaging UVN spectrometer for air quality monitoring
Author(s): G. Bazalgette Courrèges-Lacoste; M. Sallusti; G. Bulsa; G. Bagnasco; Ben Veihelmann; S. Riedl; D. J. Smith; R. Maurer
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Paper Abstract

Sentinel-4 is an imaging UVN (UV-VIS-NIR) spectrometer, developed by Airbus Defence and Space under ESA contract in the frame of the joint EU/ESA COPERNICUS program. The mission objective is the operational monitoring of trace gas concentrations for atmospheric chemistry and climate applications – hence the motto of Sentinel-4 “Knowing what we breathe”. Sentinel-4 will provide accurate measurements of key atmospheric constituents such as ozone, nitrogen dioxide, sulfur dioxide, methane, and aerosol properties over Europe and adjacent regions from a geostationary orbit (see Fig. 1). In the family of already flown UVN spectrometers (SCIAMACHY, OMI, GOME and GOME 2) and of those spectrometers currently under development (Sentinel-5p and Sentinel-5), Sentinel-4 is unique in being the first geostationary UVN mission. Furthermore, thanks to its 60-minutes repeat cycle measurements and high spatial resolution (8x8 km2), Sentinel-4 will increase the frequency of cloud-free observations, which is necessary to assess troposphere variability. Two identical Sentinel-4 instruments (PFM and FM-2) will be embarked, as Customer Furnished Item (CFI), fully verified, qualified and calibrated respectively onto two EUMETSAT satellites: Meteosat Third Generation-Sounder 1 and 2 (MTG-S1 and MTG-S2), whose Flight Acceptance Reviews are presently planned respectively in Q4 2021 and Q1 2030. This paper gives an overview of the Sentinel-4 system1 architecture, its design and development status, current performances and the key technological challenges.

Paper Details

Date Published: 29 September 2017
PDF: 9 pages
Proc. SPIE 10423, Sensors, Systems, and Next-Generation Satellites XXI, 1042307 (29 September 2017); doi: 10.1117/12.2282158
Show Author Affiliations
G. Bazalgette Courrèges-Lacoste, European Space Research and Technology Ctr. (Netherlands)
M. Sallusti, European Space Research and Technology Ctr. (Netherlands)
G. Bulsa, European Space Research and Technology Ctr. (Netherlands)
G. Bagnasco, European Space Research and Technology Ctr. (Netherlands)
Ben Veihelmann, European Space Research and Technology Ctr. (Netherlands)
S. Riedl, Airbus Defence and Space (Germany)
D. J. Smith, Airbus Defence and Space (Germany)
R. Maurer, Airbus Defence and Space (Germany)


Published in SPIE Proceedings Vol. 10423:
Sensors, Systems, and Next-Generation Satellites XXI
Steven P. Neeck; Jean-Loup Bézy; Toshiyoshi Kimura, Editor(s)

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