[en] The Multi-viewing, Multi-spectral, Multi-polarization Imager (3MI) is one of the payloads on board of the MetOp-SG “Satellite A”, developed to provide information on atmospheric aerosols. The 3MI payload on-ground calibration is very challenging due to its wide FoV (110°) and stringent requirements on radiometric, geometric, polarization and straylight calibration accuracy. CSL has calibrated the EM, PFM and FM2 models. During the FM2 calibration campaign in April 2024, efforts have been made on continuous improvement of the GSEs’ stability and robustness to provide more reliable on-ground calibration results. We have proposed tailored solution to trace our absolute calibration GSE monitoring with the calibration standard during an over 90 days calibration campaign. Particularly, thanks to the periodical absolute radiometric and polarimetric stability measurements during the entire FM2 campaign, we are able to understand the uncertainties observed during the PFM and FM2 campaigns.
Research Center/Unit :
CSL - Centre Spatial de Liège - ULiège
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Michel, Céline ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Clermont, Lionel ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Chouffart, Quentin ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Mazy, Emmanuel ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Dandumont, Colin ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
De Rauw, Dominique ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
La China, Federico
Fuente, Inés
Arts, Mathijs
Fougnie, Bertrand
Zhao, Yuchen ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Language :
English
Title :
On-ground testing facility refinement for calibration of multiviewing, multichannel, multipolarisation imager (3MI) flight model 2
Publication date :
28 July 2025
Event name :
International Conference on Space Optics — ICSO 2024
Event place :
Antibes Juan-les-Pins, France
Event date :
21 octobre 2024 - 25 octobre 2024
Audience :
International
Journal title :
Proceedings of SPIE: The International Society for Optical Engineering
ISSN :
0277-786X
eISSN :
1996-756X
Publisher :
International Society for Optical Engineering, Bellingham, United States - Washington
Volume :
13699
Pages :
12
Peer review/Selection committee :
Editorial Reviewed verified by ORBi
Funders :
ESA - European Space Agency
Funding number :
4500511744/MetOp-SG/CSL
Funding text :
This work is performed under ESA contract 4500511744/MetOp-SG/CSL between Leonardo and Centre Spatial de Liège. The authors are grateful to all the CSL operators for their involvement during the long-lasting test campaign.
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