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Proceedings Paper

Selecting pixels for Kepler downlink
Author(s): Stephen T. Bryson; Jon M. Jenkins; Todd C. Klaus; Miles T. Cote; Elisa V. Quintana; Jennifer R. Hall; Khadeejah Ibrahim; Hema Chandrasekaran; Douglas A. Caldwell; Jeffrey E. Van Cleve; Michael R. Haas
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Paper Abstract

The Kepler mission monitors ~ 165, 000 stellar targets using 42 2200 × 1024 pixel CCDs. Onboard storage and bandwidth constraints prevent the storage and downlink of all 96 million pixels per 30-minute cadence, so the Kepler spacecraft downlinks a specified collection of pixels for each target. These pixels are selected by considering the object brightness, background and the signal-to-noise in each pixel, and maximizing the signal-to- noise ratio of the target. This paper describes pixel selection, creation of spacecraft apertures that efficiently capture selected pixels, and aperture assignment to a target. Engineering apertures, short-cadence targets and custom-specified shapes are discussed.

Paper Details

Date Published: 19 July 2010
PDF: 12 pages
Proc. SPIE 7740, Software and Cyberinfrastructure for Astronomy, 77401D (19 July 2010); doi: 10.1117/12.857625
Show Author Affiliations
Stephen T. Bryson, NASA Ames Research Ctr. (United States)
Jon M. Jenkins, NASA Ames Research Ctr. (United States)
Todd C. Klaus, NASA Ames Research Ctr. (United States)
Miles T. Cote, NASA Ames Research Ctr. (United States)
Elisa V. Quintana, NASA Ames Research Ctr. (United States)
Jennifer R. Hall, NASA Ames Research Ctr. (United States)
Khadeejah Ibrahim, NASA Ames Research Ctr. (United States)
Hema Chandrasekaran, Lawrence Livermore National Lab. (United States)
Douglas A. Caldwell, NASA Ames Research Ctr. (United States)
Jeffrey E. Van Cleve, NASA Ames Research Ctr. (United States)
Michael R. Haas, 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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