Semi-weekly monitoring of the performance and attitude of Kepler using a sparse set of targets

Hema Chandrasekaran; Jon M. Jenkins; Jie Li; Forrest R. Girouard; Joseph D. Twicken; Douglas A. Caldwell; Christopher Allen; Stephen T. Bryson; Todd C. Klaus; Miles T. Cote; Brett A. Stroozas; Jennifer R. Hall; Khadeejah Ibrahim

doi:10.1117/12.856741

19 July 2010 Semi-weekly monitoring of the performance and attitude of Kepler using a sparse set of targets

Hema Chandrasekaran, Jon M. Jenkins, Jie Li, Forrest R. Girouard, Joseph D. Twicken, Douglas A. Caldwell, Christopher Allen, Stephen T. Bryson, Todd C. Klaus, Miles T. Cote, Brett A. Stroozas, Jennifer R. Hall, Khadeejah Ibrahim

Author Affiliations +

Proceedings Volume 7740, Software and Cyberinfrastructure for Astronomy; 77401B (2010) https://doi.org/10.1117/12.856741
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The Kepler spacecraft is in a heliocentric Earth-trailing orbit, continuously observing ~160,000 select stars over ~115 square degrees of sky using its photometer containing 42 highly sensitive CCDs. The science data from these stars, consisting of ~6 million pixels at 29.4-minute intervals, is downlinked only every ~30 days. Additional low-rate Xband communications contacts are conducted with the spacecraft twice a week to downlink a small subset of the science data. This paper describes how we assess and monitor the performance of the photometer and the pointing stability of the spacecraft using such a sparse data set.

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Hema Chandrasekaran, Jon M. Jenkins, Jie Li, Forrest R. Girouard, Joseph D. Twicken, Douglas A. Caldwell, Christopher Allen, Stephen T. Bryson, Todd C. Klaus, Miles T. Cote, Brett A. Stroozas, Jennifer R. Hall, and Khadeejah Ibrahim "Semi-weekly monitoring of the performance and attitude of Kepler using a sparse set of targets", Proc. SPIE 7740, Software and Cyberinfrastructure for Astronomy, 77401B (19 July 2010); https://doi.org/10.1117/12.856741

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