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Kepler Mission's Focal Plane Characterization Models Implementation.

Christopher Allen1, Todd Klaus1, Jon Jenkins2

  • 1Orbital Sciences Corporation, NASA Ames Research Center, MS 244-30, PO Box 1, Moffett Field, CA 94035.

Proceedings of Spie--The International Society for Optical Engineering
|February 1, 2019
PubMed
Summary
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The Kepler Mission uses Focal Plane Characterization (FC) Models to remove instrumental effects from CCD data, ensuring high-quality light curves for planet detection. This software library is crucial for the Kepler Science Processing Pipeline.

Area of Science:

  • * Astrophysics
  • * Data Science
  • * Space Instrumentation

Background:

  • * The Kepler Mission's photometer utilizes a complex CCD array.
  • * Time-varying instrumental and systematic effects in pixel data require modeling and removal.
  • * Frequent remeasurement of these effects post-launch is challenging, necessitating interpolation methods.

Purpose of the Study:

  • * To describe the Focal Plane Characterization (FC) Models software library.
  • * To explain how FC Models process Kepler pixel data to remove non-photometric effects.
  • * To detail the software components and their role in the Kepler Science Processing Pipeline.

Main Methods:

  • * Development of a software library (FC Models) comprising Java and MATLAB components.
  • * Implementation of database persistence, operations, model classes, and data importers.
Keywords:
AmesCCDCalibrationFocal Plane CharacteristicsJavaKeplerKepler MissionMATLABNASAextrasolarinfrastructuresoftwarespace telescopetransit photometry

Related Experiment Videos

  • * Utilization of interpolation methods and wrapper functions for effect correction.

    • Main Results:

    • * FC Models provide essential data for nearly every element of the Science Operations Center (SOC) processing chain.
    • * The software enables the removal of non-photometric effects from Kepler light curves.
    • * Unique compound models are incorporated for sky-to-pixel/pixel-to-sky coordinate transformations.

    Conclusions:

    • * FC Models are integral to producing high-quality Kepler light curves for exoplanet detection.
    • * The software effectively addresses instrumental and systematic effects in complex CCD data.
    • * Interpolation and unique coordinate transformation models enhance the accuracy of Kepler data processing.