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Proceedings Paper

Optical design for CETUS: a wide-field 1.5m aperture UV payload being studied for a NASA probe class mission study
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Paper Abstract

We are developing a NASA Headquarters selected Probe-class mission concept called the Cosmic Evolution Through UV Spectroscopy (CETUS) mission, which includes a 1.5-m aperture diameter large field-of-view (FOV) telescope optimized for UV imaging, multi-object spectroscopy, and point-source spectroscopy. The optical system includes a Three Mirror Anastigmatic (TMA) telescope that simultaneously feeds three separate scientific instruments: the near-UV (NUV) Multi-Object Spectrograph (MOS) with a next-generation Micro-Shutter Array (MSA); the two-channel camera covering the far-UV (FUV) and NUV spectrum; and the point-source spectrograph covering the FUV and NUV region with selectable R~ 40,000 echelle modes and R~ 2,000 first order modes. The optical system includes fine guidance sensors, wavefront sensing, and spectral and flat-field in-flight calibration sources. This paper will describe the current optical design of CETUS.

Paper Details

Date Published: 5 September 2017
PDF: 9 pages
Proc. SPIE 10401, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems, 104011P (5 September 2017); doi: 10.1117/12.2286680
Show Author Affiliations
Robert A. Woodruff, Woodruff Consulting (United States)
Tony Hull, Kendrick Aerospace Consulting LLC (United States)
The Univ. of New Mexico (United States)
Sara R. Heap, NASA Goddard Space Flight Ctr. (United States)
William Danchi, NASA Goddard Space Flight Ctr. (United States)
Stephen E. Kendrick, Kendrick Aerospace Consulting LLC (United States)
Lloyd Purves, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 10401:
Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems
Tony B. Hull; Dae Wook Kim; Pascal Hallibert, Editor(s)

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