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Proceedings Paper

The JANUS camera onboard JUICE mission for Jupiter system optical imaging
Author(s): Vincenzo Della Corte; Nicole Schmitz; Michele Zusi; José Maria Castro; Mark Leese; Stefano Debei; Demetrio Magrin; Harald Michalik; Pasquale Palumbo; Ralf Jaumann; Gabriele Cremonese; Harald Hoffmann; Andrew Holland; Luisa Maria Lara; Björn Fiethe; Enrico Friso; Davide Greggio; Miguel Herranz; Alexander Koncz; Alexander Lichopoj; Ignacio Martinez-Navajas; Elena Mazzotta Epifani; Harald Michaelis; Roberto Ragazzoni; Thomas Roatsch; Julio Rodrigo; Emilio Rodriguez; Pietro Schipani; Matthew Soman; Mirco Zaccariotto
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Paper Abstract

JANUS (Jovis, Amorum ac Natorum Undique Scrutator) is the visible camera selected for the ESA JUICE mission to the Jupiter system. Resources constraints, S/C characteristics, mission design, environment and the great variability of observing conditions for several targets put stringent constraints on instrument architecture. In addition to the usual requirements for a planetary mission, the problem of mass and power consumption is particularly stringent due to the long-lasting cruising and operations at large distance from the Sun. JANUS design shall cope with a wide range of targets, from Jupiter atmosphere, to solid satellite surfaces, exosphere, rings, and lightning, all to be observed in several color and narrow-band filters. All targets shall be tracked during the mission and in some specific cases the DTM will be derived from stereo imaging. Mission design allows a quite long time range for observations in Jupiter system, with orbits around Jupiter and multiple fly-bys of satellites for 2.5 years, followed by about 6 months in orbit around Ganymede, at surface distances variable from 104 to few hundreds km. Our concept was based on a single optical channel, which was fine-tuned to cover all scientific objectives based on low to high-resolution imaging. A catoptric telescope with excellent optical quality is coupled with a rectangular detector, avoiding any scanning mechanism. In this paper the present JANUS design and its foreseen scientific capabilities are discussed.

Paper Details

Date Published: 28 August 2014
PDF: 12 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91433I (28 August 2014); doi: 10.1117/12.2056353
Show Author Affiliations
Vincenzo Della Corte, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Nicole Schmitz, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Michele Zusi, INAF - Osservatorio Astronomico di Capodimonte (Italy)
José Maria Castro, Instituto de Astrofísica de Andalucía - CSIC (Spain)
Mark Leese, The Open Univ. (United Kingdom)
Stefano Debei, CISAS - Univ. degli Studi di Padova (Italy)
Demetrio Magrin, INAF - Osservatorio Astronomico di Padova (Italy)
Harald Michalik, Technische Univ. Braunschweig (Germany)
Pasquale Palumbo, Univ. degli Studi di Napoli Parthenope (Italy)
Ralf Jaumann, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Gabriele Cremonese, INAF - Osservatorio Astronomico di Padova (Italy)
Harald Hoffmann, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Andrew Holland, The Open Univ. (United Kingdom)
Luisa Maria Lara, Instituto de Astrofísica de Andalucía - CSIC (Spain)
Björn Fiethe, Technische Univ. Braunschweig (Germany)
Enrico Friso, CISAS - Univ. degli Studi di Padova (Italy)
Davide Greggio, INAF - Osservatorio Astronomico di Padova (Italy)
Miguel Herranz, Instituto de Astrofísica de Andalucía - CSIC (Spain)
Alexander Koncz, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Alexander Lichopoj, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Ignacio Martinez-Navajas, Instituto de Astrofísica de Andalucía - CSIC (Spain)
Elena Mazzotta Epifani, INAF - Osservatorio Astronomico di Capodimonte (Italy)
Harald Michaelis, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Roberto Ragazzoni, INAF - Osservatorio Astronomico di Padova (Italy)
Thomas Roatsch, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Julio Rodrigo, Instituto de Astrofísica de Andalucía - CSIC (Spain)
Emilio Rodriguez, Instituto de Astrofísica de Andalucía - CSIC (Spain)
Pietro Schipani, INAF - Osservatorio Astronomico di Capodimonte (Italy)
Matthew Soman, The Open Univ. (United Kingdom)
Mirco Zaccariotto, CISAS - Univ. degli Studi di Padova (Italy)


Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)

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