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Proceedings Paper

Pixel-level calibration in the Kepler Science Operations Center pipeline
Author(s): Elisa V. Quintana; Jon M. Jenkins; Bruce D. Clarke; Hema Chandrasekaran; Joseph D. Twicken; Sean D. McCauliff; Miles T. Cote; Todd C. Klaus; Christopher Allen; Douglas A. Caldwell; Stephen T. Bryson
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Paper Abstract

We present an overview of the pixel-level calibration of flight data from the Kepler Mission performed within the Kepler Science Operations Center Science Processing Pipeline. This article describes the calibration (CAL) module, which operates on original spacecraft data to remove instrument effects and other artifacts that pollute the data. Traditional CCD data reduction is performed (removal of instrument/detector effects such as bias and dark current), in addition to pixel-level calibration (correcting for cosmic rays and variations in pixel sensitivity), Kepler-specific corrections (removing smear signals which result from the lack of a shutter on the photometer and correcting for distortions induced by the readout electronics), and additional operations that are needed due to the complexity and large volume of flight data. CAL operates on long (~30 min) and short (~1 min) sampled data, as well as full-frame images, and produces calibrated pixel flux time series, uncertainties, and other metrics that are used in subsequent Pipeline modules. The raw and calibrated data are also archived in the Multi-mission Archive at Space Telescope at the Space Telescope Science Institute for use by the astronomical community.

Paper Details

Date Published: 19 July 2010
PDF: 12 pages
Proc. SPIE 7740, Software and Cyberinfrastructure for Astronomy, 77401X (19 July 2010); doi: 10.1117/12.857678
Show Author Affiliations
Elisa V. Quintana, SETI Institute (United States)
Jon M. Jenkins, SETI Institute (United States)
Bruce D. Clarke, SETI Institute (United States)
Hema Chandrasekaran, Lawrence Livermore National Lab. (United States)
Joseph D. Twicken, SETI Institute (United States)
Sean D. McCauliff, Orbital Sciences Corp. (United States)
Miles T. Cote, NASA Ames Research Ctr. (United States)
Todd C. Klaus, Orbital Sciences Corp. (United States)
Christopher Allen, Orbital Sciences Corp. (United States)
Douglas A. Caldwell, SETI Institute (United States)
Stephen T. Bryson, NASA Ames Research Ctr. (United States)


Published in SPIE Proceedings Vol. 7740:
Software and Cyberinfrastructure for Astronomy
Nicole M. Radziwill; Alan Bridger, Editor(s)

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