28 August 2014 A preliminary optical design for the JANUS camera of ESA's space mission JUICE
Author Affiliations +
Abstract
The JANUS (Jovis, Amorum ac Natorum Undique Scrutator) will be the on board camera of the ESA JUICE satellite dedicated to the study of Jupiter and its moons, in particular Ganymede and Europa. This optical channel will provide surface maps with plate scale of 15 microrad/pixel with both narrow and broad band filters in the spectral range between 0.35 and 1.05 micrometers over a Field of View 1.72 × 1.29 degrees2. The current optical design is based on TMA design, with on-axis pupil and off-axis field of view. The optical stop is located at the secondary mirror providing an effective collecting area of 7854 mm2 (100 mm entrance pupil diameter) and allowing a simple internal baffling for first order straylight rejection. The nominal optical performances are almost limited by the diffraction and assure a nominal MTF better than 63% all over the whole Field of View. We describe here the optical design of the camera adopted as baseline together with the trade-off that has led us to this solution.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. Greggio, D. Magrin, R. Ragazzoni, M. Munari, G. Cremonese, M. Bergomi, M. Dima, J. Farinato, L. Marafatto, V. Viotto, S. Debei, V. Della Corte, P. Palumbo, H. Hoffmann, R. Jaumann, H. Michaelis, N. Schmitz, P. Schipani, L. Lara, "A preliminary optical design for the JANUS camera of ESA's space mission JUICE", Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 914343 (28 August 2014); doi: 10.1117/12.2056375; https://doi.org/10.1117/12.2056375
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

The optical design concept of SPICA-SAFARI
Proceedings of SPIE (September 21 2012)
Prime focus coma corrector for the MMT with off the...
Proceedings of SPIE (August 16 2000)
Large-objective optical system for TV night observation
Proceedings of SPIE (April 15 1993)
The narrow angle camera of the MPCS suite for the...
Proceedings of SPIE (August 05 2010)

Back to Top