
Proceedings Paper
Improving JWST science productivity by changing the detector reset modeFormat | Member Price | Non-Member Price |
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Paper Abstract
For large space missions maximizing the time spent observing science targets by minimizing overhead increases the
scientific return of the mission. On the James Webb Space Telescope (JWST), the baseline mode of resetting the near
infrared detectors is a pixel-by-pixel reset. For the Hawaii-2RG detectors this requires 10.5 seconds. Over the life of the
mission, 2-3% of the total time is spent performing these resets. In this paper, we investigate using the much faster row-by-
row reset mode of the Hawaii-2RG as an alternative. Resets in this mode can be performed in only 40 milliseconds
allowing more time for science. We investigate how the changing of the reset modes affects: thermal stability of the
detectors, total noise, and observed persistence after bright sources are observed. Overall, any negative side effects seem
to be outweighed by the increase in the available exposure time for science during the lifetime of JWST.
Paper Details
Date Published: 28 August 2014
PDF: 9 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91433U (28 August 2014); doi: 10.1117/12.2059825
Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann Jr.; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)
PDF: 9 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91433U (28 August 2014); doi: 10.1117/12.2059825
Show Author Affiliations
Michael W. Regan, Space Telescope Science Institute (United States)
Rachel Anderson, Space Telescope Science Institute (United States)
Rachel Anderson, Space Telescope Science Institute (United States)
Eddie Bergeron, Space Telescope Science Institute (United States)
Douglas Long, Space Telescope Science Institute (United States)
Douglas Long, Space Telescope Science Institute (United States)
Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann Jr.; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)
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