Calibration of MAJIS (Moons And Jupiter Imaging Spectrometer): I. On-ground setup description and characterisation
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| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| author | Vincendon, Mathieu Guiot, Pierre Lecomte, Benoît Condamin, Mathieu Poulet, François Arondel, Antoine Barbay, Julien Carter, John De Angelis, Simone Dumesnil, Cydalise Filacchione, Gianrico Haffoud, Paolo Hansotte, Jérémie Langevin, Yves Mayeur, Pierre-Louis Piccioni, Giuseppe Pilorget, Cédric Quirico, Eric Rodriguez, Sébastien |
| author_facet | Vincendon, Mathieu Guiot, Pierre Lecomte, Benoît Condamin, Mathieu Poulet, François Arondel, Antoine Barbay, Julien Carter, John De Angelis, Simone Dumesnil, Cydalise Filacchione, Gianrico Haffoud, Paolo Hansotte, Jérémie Langevin, Yves Mayeur, Pierre-Louis Piccioni, Giuseppe Pilorget, Cédric Quirico, Eric Rodriguez, Sébastien |
| contents | The visible and infrared Moon And Jupiter Imaging Spectrometer (MAJIS), aboard the JUpiter ICy Moons Explorer (JUICE) spacecraft, will characterize the composition of the surfaces and atmospheres of the Jupiter system. Prior to the launch, a campaign was carried out to obtain the measurements needed to calibrate the instrument. The aim was not only to produce data for the calculation of the radiometric, spectral, and spatial transfer functions, but also to evaluate MAJIS performance, such as signal-to-noise ratio and amount of straylight, under near-flight conditions. Here, we first describe the setup implemented to obtain these measurements, based on five optical channels. We notably emphasize the concepts used to mitigate thermal infrared emissions generated at ambient temperatures, since the MAJIS spectral range extends up to 5.6 $μ$m. Then, we characterize the performance of the setup by detailing the validation measurements obtained before the campaign. In particular, the radiometric, geometric, and spectral properties of the setup needed for the inversion of collected data and the calculation of the instrument's calibration functions are presented and discussed. Finally, we provide an overview of conducted measurements with MAJIS, and we discuss unforeseen events encountered during the on-ground calibration campaign. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2502_15661 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Calibration of MAJIS (Moons And Jupiter Imaging Spectrometer): I. On-ground setup description and characterisation Vincendon, Mathieu Guiot, Pierre Lecomte, Benoît Condamin, Mathieu Poulet, François Arondel, Antoine Barbay, Julien Carter, John De Angelis, Simone Dumesnil, Cydalise Filacchione, Gianrico Haffoud, Paolo Hansotte, Jérémie Langevin, Yves Mayeur, Pierre-Louis Piccioni, Giuseppe Pilorget, Cédric Quirico, Eric Rodriguez, Sébastien Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics The visible and infrared Moon And Jupiter Imaging Spectrometer (MAJIS), aboard the JUpiter ICy Moons Explorer (JUICE) spacecraft, will characterize the composition of the surfaces and atmospheres of the Jupiter system. Prior to the launch, a campaign was carried out to obtain the measurements needed to calibrate the instrument. The aim was not only to produce data for the calculation of the radiometric, spectral, and spatial transfer functions, but also to evaluate MAJIS performance, such as signal-to-noise ratio and amount of straylight, under near-flight conditions. Here, we first describe the setup implemented to obtain these measurements, based on five optical channels. We notably emphasize the concepts used to mitigate thermal infrared emissions generated at ambient temperatures, since the MAJIS spectral range extends up to 5.6 $μ$m. Then, we characterize the performance of the setup by detailing the validation measurements obtained before the campaign. In particular, the radiometric, geometric, and spectral properties of the setup needed for the inversion of collected data and the calculation of the instrument's calibration functions are presented and discussed. Finally, we provide an overview of conducted measurements with MAJIS, and we discuss unforeseen events encountered during the on-ground calibration campaign. |
| title | Calibration of MAJIS (Moons And Jupiter Imaging Spectrometer): I. On-ground setup description and characterisation |
| topic | Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2502.15661 |