PDS_VERSION_ID = PDS3 RECORD_TYPE = "STREAM" OBJECT = TEXT PUBLICATION_DATE = 2018-11-15 NOTE = "Description of the CALIB directory" END_OBJECT = TEXT END CALIB Directory Content The CALIB folder contains the calibration database used by OsiCalliope to generate the calibrated images. All information is readable using either a text editor (ascii format) or a standard PDS data file reader. The CALIB folder has the following structure: CALIB --|-- ABSCAL : Folder containing the DN/s to W/m^2/sr/nm | conversion factors to radiometric | calibrate the images. | |-- BADPIXELS : Folder containing a list of bad pixels on | the CCDs and their correction method. | |-- BIAS : Folder containing the bias offsets for | the various operational modes of OSIRIS | |-- DISTORTION : Folder containing the geometric | distorsion correction parameters for the | cameras | |-- EXPOSURE : Folder containing data for exposure | time correction. | |-- FILTERS : Folder containing the NAC and WAC filter | transmission curves as supplied by the | manufacturer, the WAC narrow band | correction files, and the WAC narrow band | angular transmission files | |-- FLATFIELDS : Folder containing the flatfields for | the various filter combinations | |-- THROUGHPUT : Folder containing the the parameters used | for the determination of the camera | throughput | |-- OSICALLIOPE_V??.TXT : Configuration file used by OsiCalliope with general calibration and configuration parameters and a list of files and versions used by OsiCalliope. The description of the file name convention of these files can be found in the EAICD under ./DOCUMENT/EAICD. The content of the files is described in the calibration documents under ./DOCUMENT/CALIB.