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Full Frame Image (FFI) Display
This tool enables you to browse the Kepler field of view using the currently available FFI and FFI Uncertainty images, and to identify specific objects observed by GALEX, SDSS, and 2MASS in the Kepler field, as well as Kepler objects for which data are now public, "dropped," or published. The timestamp in the FFI file names are in the format yyyydddhhmmss, where ddd refers to Day of Year (for example, 114 = April 24 UTC), and times refer to the end of the exposure.See the README.txt file in the FFI ftp directory for more information on the WCS corrections. Notice most objects will appear in different CCD channels during different Kepler seasons.
For FFIs delivered before Oct. 2011, we recommend using SAOImage ds9 to
correctly display the
celestial coordinate system. Outdated WCS keywords exist in the FFI
headers that cause some FITS viewers, eg. Gaia and Skycat, to display the
wrong coordinates. The problem has been remedied in all FFIs delivered after
Sep. 31, 2011.
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