Remote Sensing (Dec 2019)

UVSQ-SAT, a Pathfinder CubeSat Mission for Observing Essential Climate Variables

  • Mustapha Meftah,
  • Luc Damé,
  • Philippe Keckhut,
  • Slimane Bekki,
  • Alain Sarkissian,
  • Alain Hauchecorne,
  • Emmanuel Bertran,
  • Jean-Paul Carta,
  • David Rogers,
  • Sadok Abbaki,
  • Christophe Dufour,
  • Pierre Gilbert,
  • Laurent Lapauw,
  • André-Jean Vieau,
  • Xavier Arrateig,
  • Nicolas Muscat,
  • Philippe Bove,
  • Éric Sandana,
  • Ferechteh Teherani,
  • Tong Li,
  • Gilbert Pradel,
  • Michel Mahé,
  • Christophe Mercier,
  • Agne Paskeviciute,
  • Kevin Segura,
  • Alicia Berciano Alba,
  • Ahmed Aboulila,
  • Loren Chang,
  • Amal Chandran,
  • Pierre-Richard Dahoo,
  • Alain Bui

DOI
https://doi.org/10.3390/rs12010092
Journal volume & issue
Vol. 12, no. 1
p. 92

Abstract

Read online

The UltraViolet and infrared Sensors at high Quantum efficiency onboard a small SATellite (UVSQ-SAT) mission aims to demonstrate pioneering technologies for broadband measurement of the Earth’s radiation budget (ERB) and solar spectral irradiance (SSI) in the Herzberg continuum (200−242 nm) using high quantum efficiency ultraviolet and infrared sensors. This research and innovation mission has been initiated by the University of Versailles Saint-Quentin-en-Yvelines (UVSQ) with the support of the International Satellite Program in Research and Education (INSPIRE). The motivation of the UVSQ-SAT mission is to experiment miniaturized remote sensing sensors that could be used in the multi-point observation of Essential Climate Variables (ECV) by a small satellite constellation. UVSQ-SAT represents the first step in this ambitious satellite constellation project which is currently under development under the responsibility of the Laboratory Atmospheres, Environments, Space Observations (LATMOS), with the UVSQ-SAT CubeSat launch planned for 2020/2021. The UVSQ-SAT scientific payload consists of twelve miniaturized thermopile-based radiation sensors for monitoring incoming solar radiation and outgoing terrestrial radiation, four photodiodes that benefit from the intrinsic advantages of Ga 2 O 3 alloy-based sensors made by pulsed laser deposition for measuring solar UV spectral irradiance, and a new three-axis accelerometer/gyroscope/compass for satellite attitude estimation. We present here the scientific objectives of the UVSQ-SAT mission along the concepts and properties of the CubeSat platform and its payload. We also present the results of a numerical simulation study on the spatial reconstruction of the Earth’s radiation budget, on a geographical grid of 1 ° × 1 ° degree latitude-longitude, that could be achieved with UVSQ-SAT for different observation periods.

Keywords