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Proceedings Paper

Preliminary calibration results for the HST/cosmic origins spectrograph
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Paper Abstract

We present the preliminary calibration results for the Cosmic Origins Spectrograph, a fourth generation replacement instrument for the Hubble Space Telescope due to be installed in mid-2005. The Cosmic Origins Spectrograph consists of two spectroscopic channels: a far ultraviolet channel that observes wavelengths between 1150 and 2000 Åand a near ultraviolet channel that observes between 1700 and 3200 Å. Each channel supports moderate (R≈20,000) and low (R≈2000) spectral resolution. We discuss the calibration methodology, test configurations, and preliminary end-to-end calibration results. This includes spectral resolution, system efficiency, flat fields, and wavelength scales for each channel. We also present the measured transmission of the Bright Object Aperture (BOA) and the measured spatial resolution.

Paper Details

Date Published: 8 December 2003
PDF: 7 pages
Proc. SPIE 5164, UV/EUV and Visible Space Instrumentation for Astronomy II, (8 December 2003); doi: 10.1117/12.505870
Show Author Affiliations
Erik Wilkinson, Univ. of Colorado/Boulder (United States)
Stephane Beland, Univ. of Colorado/Boulder (United States)
Cynthia S. Froning, Univ. of Colorado/Boulder (United States)
James C. Green, Univ. of Colorado/Boulder (United States)
Steven N. Osterman, Univ. of Colorado/Boulder (United States)
Steven V. Penton, Univ. of Colorado/Boulder (United States)
Thomas Delker, Ball Aerospace & Technologies Corp. (United States)
Dennis Ebbets, Ball Aerospace & Technologies Corp. (United States)
Adrian Martin, Univ. of California/Berkeley (United States)
Jason McPhate, Univ. of California/Berkeley (United States)
John V. Vallerga, Univ. of California/Berkeley (United States)
Scott D. Friedman, Space Telescope Science Institute (United States)
George Hartig, Space Telescope Science Institute (United States)
Charles Keyes, Space Telescope Science Institute (United States)
Claus Leitherer, Space Telescope Science Institute (United States)
Kenneth Sembach, Space Telescope Science Institute (United States)
David J. Sahnow, Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 5164:
UV/EUV and Visible Space Instrumentation for Astronomy II
Oswald H. W. Siegmund, Editor(s)

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