Calibration of MAJIS (Moons And Jupiter Imaging Spectrometer). II. Spatial calibration
Journal
Date Issued
2024
Author(s)
•
Haffoud, Paolo
•
Poulet, Francois
•
•
Langevin, Yves
•
Tommasi, Leonardo
•
Barbis, Alessandra
•
Carter, John
•
Guerri, Irene
•
Dumesnil, Cydalise
•
•
Vincendon, Mathieu
•
•
Pilorget, Cedric
•
•
Rodriguez, Sebastien
Abstract
MAJIS, Moons and Jupiter Imaging Spectrometer, is one of the scientific payloads aboard European Space Agency’s Jupiter Icy Moons Explorer mission. This instrument underwent a comprehensive characterization and calibration campaign before integration on the spacecraft. In this work, we report on the measurements of the instrumental spatial responses, including the slit and pixel functions, the knife edge function, the ensquared energy, and the keystone aberration. The measurements were repeated in several positions of the field of view and within the range of MAJIS temperatures during science observations. The goal was to characterize the instrument’s response under a wide set of conditions and at different visible-infrared wavelengths. The experimental setups employed to perform calibrations are described in detail, and the methodology applied to derive the instrumental spatial responses is discussed. After launch, minor changes in the instrument response and the coalignment between the two spectral channels were identified by comparing on-ground data with the first in-flight data returned by MAJIS.
Volume
95
Issue
4
Start page
1
Issn Identifier
0034-6748
Ads BibCode
2024RScI...95d1301F
Rights
open.access
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