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Proceedings Paper

Trade-off between TMA and RC configurations for JANUS camera
Author(s): D. Greggio; D. Magrin; M. Munari; R. Paolinetti; A. Turella; M. Zusi; G. Cremonese; S. Debei; V. Della Corte; E. Friso; H. Hoffmann; R. Jaumann; H. Michaelis; R. Mugnuolo; A. Olivieri; P. Palumbo; R. Ragazzoni; N. Schmitz
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Paper Abstract

JANUS (Jovis Amorum Ac Natorum Undique Scrutator) is a high-resolution visible camera designed for the ESA space mission JUICE (Jupiter Icy moons Explorer). The main scientific goal of JANUS is to observe the surface of the Jupiter satellites Ganymede and Europa in order to characterize their physical and geological properties. During the design phases, we have proposed two possible optical configurations: a Three Mirror Anastigmat (TMA) and a Ritchey-Chrétien (RC) both matching the performance requirements. Here we describe the two optical solutions and compare their performance both in terms of achieved optical quality, sensitivity to misalignment and stray light performances.

Paper Details

Date Published: 29 July 2016
PDF: 6 pages
Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 990451 (29 July 2016); doi: 10.1117/12.2231927
Show Author Affiliations
D. Greggio, INAF - Osservatorio Astronomico di Padova (Italy)
Univ. di Padova (Italy)
D. Magrin, INAF - Osservatorio Astronomico di Padova (Italy)
M. Munari, INAF - Osservatorio Astrofisico di Catania (Italy)
R. Paolinetti, Leonardo - Finmeccanica (Italy)
A. Turella, Leonardo - Finmeccanica (Italy)
M. Zusi, INAF - Osservatorio Astronomico di Capodimonte (Italy)
INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
G. Cremonese, INAF - Osservatorio Astronomico di Padova (Italy)
S. Debei, Univ. di Padova (Italy)
V. Della Corte, Univ. degli Studi di Napoli (Italy)
E. Friso, Univ. di Padova (Italy)
H. Hoffmann, German Aerospace Ctr. (Germany)
R. Jaumann, German Aerospace Ctr. (Germany)
H. Michaelis, German Aerospace Ctr. (Germany)
R. Mugnuolo, ASI Ctr. di Geodesia Spaziale (Italy)
A. Olivieri, ASI Ctr. di Geodesia Spaziale (Italy)
P. Palumbo, Univ. degli Studi di Napoli (Italy)
R. Ragazzoni, INAF - Osservatorio Astronomico di Padova (Italy)
N. Schmitz, German Aerospace Ctr. (Germany)


Published in SPIE Proceedings Vol. 9904:
Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
Howard A. MacEwen; Giovanni G. Fazio; Makenzie Lystrup; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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