Update On Kepler Photometric Precision And The Radii Of Detectable Planets

Details Update On Kepler Photometric Precision And The Radii Of Detectable Planets Update On Kepler Photometric Precision And The Radii Of Detectable Planets

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.5902m&link_type=abstract

American Astronomical Society, DPS meeting #42, #59.02; Bulletin of the American Astronomical Society, Vol. 42, p.1084

Astronomy and Astrophysics

Astronomy

Scientific paper

The Kepler Mission seeks to detect an 84 parts per million (ppm) deep transit of an Earth like planet around a Sun like star at more than 4-sigma for an 6.5 hour long transit. We present an update on the removal of systematic effects in the long cadence (LC) differential photometry utilizing the first year of science data. In particular we report on the progress towards achieving 20 ppm precision per 6.5 hour long transit for a Kp = 12 mag G12 star. We further discuss how the pointing drift and focus changes; cosmic rays; CCD effects; aperture and PRF photometry and pipeline processing affect the combined Kepler photometric precision in terms of radii of detectable planets.
Funding for this Discovery Mission is provided by NASA's Science Mission Directorate.

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