The JANUS camera onboard JUICE mission for Jupiter system optical imaging

DOI: 
10.1117/12.2056353
Publication date: 
01/08/2014
Main author: 
Della Corte V.
IAA authors: 
Castro, J.M.;Lara, L.M.;Herranz, M.;Martinez-Navajas, I.;Rodrigo, J.;Rodriguez, E.
Authors: 
Della Corte V., Schmitz N., Zusi M., Castro J.M., Leese M., Debei S., Magrin D., Michalik H., Palumbo P., Jaumann R., Cremonese G., Hoffmann H., Holland A., Lara L.M., Fiethe B., Friso E., Greggio D., Herranz M., Koncz A., Lichopoj A., Martinez-Navajas I., Mazzotta Epifani E., Michaelis H., Ragazzoni R., Roatsch T., Rodrigo J., Rodriguez E., Schipani P., Soman M., Zaccariotto M.
Journal: 
Proceedings of SPIE - The International Society for Optical Engineering
Publication type: 
Article
Volume: 
9143
Pages: 
Number: 
91433I
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. © 2014 SPIE.
Database: 
SCOPUS
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/2014SPIE.9143E..3ID/abstract
ADS Bibcode: 
2014SPIE.9143E..3ID
Keywords: 
Jupiter system; Planetary imaging; Space instruments; Visible camera