The Moons And Jupiter Imaging Spectrometer (MAJIS) is the visible and near-infrared imaging spectrometer onboard the European Space Agency (ESA)’s Jupiter Icy Moons Explorer mission. Before its integration into the spacecraft, the instrument undergoes an extensive ground calibration to establish its baseline performances. This process prepares the imaging spectrometer for flight operations by characterizing the behavior of the instrument under various operative conditions and uncovering instrumental distortions that may depend on instrumental commands. Two steps of the on-ground calibration campaigns were held at the instrument level to produce the data. Additional in-flight measurements have recently been obtained after launch during the Near-Earth Commissioning Phase. In this article, we present the analyses of these datasets, focusing on the characterization of the spectral performances. First, we describe and analyze the spectral calibration datasets obtained using both monochromatic sources and polychromatic sources coupled with solid and gas samples. Then, we derive the spectral sampling and the spectral response function over the entire field of view. These spectral characteristics are quantified for various operational parameters of MAJIS, such as temperature and spectral binning. The derived on-ground performances are then compared with in-flight measurements obtained after launch and presented in the framework of the MAJIS performance requirements.
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March 2024
Research Article|
March 07 2024
Calibration of MAJIS (Moons And Jupiter Imaging Spectrometer). III. Spectral calibration
Paolo Haffoud
;
Paolo Haffoud
a)
(Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
a)Author to whom correspondence should be addressed: [email protected]
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François Poulet
;
François Poulet
(Conceptualization, Data curation, Funding acquisition, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
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Mathieu Vincendon;
Mathieu Vincendon
(Conceptualization, Data curation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
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Gianrico Filacchione
;
Gianrico Filacchione
(Conceptualization, Formal analysis, Methodology, Supervision, Writing – review & editing)
2
Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica
, Rome 00133, Italy
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Alessandra Barbis;
Alessandra Barbis
(Formal analysis, Investigation, Resources)
3
Leonardo Company
, via delle Officine Galileo, 1, Campi Bisenzio 50013, Italy
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Pierre Guiot
;
Pierre Guiot
(Investigation, Resources)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
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Benoit Lecomte;
Benoit Lecomte
(Investigation, Resources)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
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Yves Langevin
;
Yves Langevin
(Conceptualization, Formal analysis, Funding acquisition, Methodology, Supervision, Writing – review & editing)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
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Giuseppe Piccioni
;
Giuseppe Piccioni
(Conceptualization, Funding acquisition, Supervision)
2
Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica
, Rome 00133, Italy
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Cydalise Dumesnil;
Cydalise Dumesnil
(Data curation, Project administration, Resources)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
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Sébastien Rodriguez
;
Sébastien Rodriguez
(Investigation, Methodology)
4
Institut de Physique du Globe de Paris, CNRS-Université Paris-Cité
, Paris 75005, France
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John Carter
;
John Carter
(Conceptualization, Funding acquisition, Investigation, Resources)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
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Stefani Stefania
;
Stefani Stefania
(Investigation, Resources)
2
Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica
, Rome 00133, Italy
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Leonardo Tommasi;
Leonardo Tommasi
(Conceptualization, Investigation, Resources, Supervision)
3
Leonardo Company
, via delle Officine Galileo, 1, Campi Bisenzio 50013, Italy
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Federico Tosi
;
Federico Tosi
(Conceptualization)
2
Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica
, Rome 00133, Italy
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Cédric Pilorget
Cédric Pilorget
(Investigation, Resources, Writing – review & editing)
1
Institut d’Astrophysique Spatial, CNRS-Université Paris-Saclay
, Orsay 91400, France
5Institut Universitaire de France, Paris, France
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a)Author to whom correspondence should be addressed: [email protected]
Rev. Sci. Instrum. 95, 031301 (2024)
Article history
Received:
November 25 2023
Accepted:
February 12 2024
Citation
Paolo Haffoud, François Poulet, Mathieu Vincendon, Gianrico Filacchione, Alessandra Barbis, Pierre Guiot, Benoit Lecomte, Yves Langevin, Giuseppe Piccioni, Cydalise Dumesnil, Sébastien Rodriguez, John Carter, Stefani Stefania, Leonardo Tommasi, Federico Tosi, Cédric Pilorget; Calibration of MAJIS (Moons And Jupiter Imaging Spectrometer). III. Spectral calibration. Rev. Sci. Instrum. 1 March 2024; 95 (3): 031301. https://doi.org/10.1063/5.0188944
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