Rosetta-Alice II: an upgraded UV spectrograph for a Rosetta-type mission

Philippa M. Molyneux; Michael W. Davis; Kurt D. Retherford; Joel Wm. Parker

doi:10.1117/12.2313768

6 July 2018 Rosetta-Alice II: an upgraded UV spectrograph for a Rosetta-type mission

Philippa M. Molyneux, Michael W. Davis, Kurt D. Retherford, Joel Wm. Parker

Proceedings Volume 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray; 1069936 (2018) https://doi.org/10.1117/12.2313768
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The European Space Agency’s (ESA’s) Rosetta mission to comet 67P/Churyumov-Gerasimenko, launched 2004, carried the first in the Southwest Research Institute’s (SwRI’s) Alice series of ultraviolet imaging spectrographs. Subsequent iterations of the instrument are currently operational on NASA’s New Horizons, Lunar Reconnaissance Orbiter (LRO) and Juno missions, launched 2006, 2009 and 2011, respectively, and two further versions of the spectrograph are in development at SwRI for flight on ESA’s JUICE mission to the Jovian system (Phase C) and NASA’s Europa Clipper mission (Phase B). While the basic optical design is similar for all versions of the instrument, developments in microchannel plate (MCP) detector and electronics technology have enhanced the scientific return of the more recent Alice spectrographs, with some corresponding increase in the mass and power of the system. Here, we describe a reevaluation of the Rosetta-Alice (R-Alice) instrument design based on updated technology, lessons learned from subsequent Alice-type instrument development, and a “wish list” of suggested improvements in instrument performance provided by the R-Alice Science Team. The resulting instrument design, which we designate R-Alice II, would form the baseline concept for an ultraviolet instrument proposed by the SwRI UVS/Alice team for future Rosetta-type missions.

Citation Download Citation

Philippa M. Molyneux, Michael W. Davis, Kurt D. Retherford, and Joel Wm. Parker "Rosetta-Alice II: an upgraded UV spectrograph for a Rosetta-type mission", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 1069936 (6 July 2018); https://doi.org/10.1117/12.2313768

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KEYWORDS

Sensors

Microchannel plates

Electronics

Spectrographs

Ultraviolet radiation

Cameras

Comets

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