Thumbnail
Access Restriction
Open

Author Joseph D. Twicken, A. ♦ Ch, Hema ♦ Rasekaran, A. ♦ Jon M. Jenkins, A. ♦ Jay P. Gunter, B. ♦ Forrest Girouard, B. ♦ Todd C. Klaus, B.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Presearch Data Conditioning ♦ Kepler Science Operation Center Pipeline ♦ Flux Light Curve ♦ Long Cadence ♦ Excess Flux ♦ Space Telescope Science Institute ♦ Short Cadence ♦ Stellar Target ♦ Raw Flux Light Curve ♦ General Public ♦ Multi-mission Archive ♦ Nasa Kepler Data Release Policy ♦ Science Processing Pipeline ♦ Short Cadence Pdc ♦ Kepler Science Operation Center ♦ Primary Task ♦ Thirty Minute ♦ Pdc Performance ♦ Science Algorithm ♦ Subsequent Pipeline Module ♦ Systematic Error Correction ♦ Software Component ♦ Transiting Planet Search ♦ Kepler Flight Data
Abstract We describe the Presearch Data Conditioning (PDC) software component and its context in the Kepler Science Operations Center (SOC) Science Processing Pipeline. The primary tasks of this component are to correct systematic and other errors, remove excess flux due to aperture crowding, and condition the raw flux light curves for over 160,000 long cadence (~thirty minute) and 512 short cadence (~one minute) stellar targets. Long cadence corrected flux light curves are subjected to a transiting planet search in a subsequent pipeline module. We discuss science algorithms for long and short cadence PDC: identification and correction of unexplained (i.e., unrelated to known anomalies) discontinuities; systematic error correction; and removal of excess flux due to aperture crowding. We discuss the propagation of uncertainties from raw to corrected flux. Finally, we present examples from Kepler flight data to illustrate PDC performance. Corrected flux light curves produced by PDC are exported to the Multi-mission Archive at Space Telescope [Science Institute] (MAST) and are made available to the general public in accordance with the NASA/Kepler data release policy.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study