Pixel-level calibration in the Kepler Science Operations Center pipeline

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

doi:10.1117/12.857678

19 July 2010 Pixel-level calibration in the Kepler Science Operations Center pipeline

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

Author Affiliations +

Proceedings Volume 7740, Software and Cyberinfrastructure for Astronomy; 77401X (2010) https://doi.org/10.1117/12.857678
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

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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, and Stephen T. Bryson "Pixel-level calibration in the Kepler Science Operations Center pipeline", Proc. SPIE 7740, Software and Cyberinfrastructure for Astronomy, 77401X (19 July 2010); https://doi.org/10.1117/12.857678

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