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| Titel |
MAJIS, the Moons And Jupiter Imaging Spectrometer, designed for the future ESA/JUICE mission |
| VerfasserIn |
Giuseppe Piccioni, Yves Langevin, Gianrico Filacchione, François Poulet, Federico Tosi, Pascal Eng, Cydalise Dumesnil, Massimo Zambelli, Bortolino Saggin, Sergio Fonti, Davide Grassi, Francesca Altieri |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250095469
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| Publikation (Nr.) |
 EGU/EGU2014-10925.pdf |
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| Zusammenfassung |
| The Moons And Jupiter Imaging Spectrometer (MAJIS) is the VIS-IR spectral mapper
selected for JUICE (Jupiter Icy Moon Explorer), the first Large-class mission in
the ESA Cosmic Vision Programme. Scheduled for a launch in 2022, JUICE will
perform a comprehensive exploration of the Jovian system thanks to several flybys of
Callisto, Ganymede and Europa, before finally entering orbit around Ganymede.
During these phases, MAJIS will acquire hyperspectral data necessary to unveil and
map the surface composition of different geologic units of the satellites. Transfers
between successive satellites’ flybys shall be devoted to remote observations of
Jupiter’s atmosphere and auroras. MAJIS’ instrument design relies on a 75 mm pupil,
f/3.2 aperture TMA telescope matching two Czerny-Turner imaging spectrometers.
A dichroic element is used to split the beam between the two spectral channels.
The VIS-NIR spectral channel covers the 0.4-1.9 μm range with a sampling of 2.3
nm/band. The IR channel works in the 1.5-5.7 μm range with a 6.6 nm/band sampling.
The entire optical structure is passively cooled at cryogenic temperature |
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