PDS_VERSION_ID        = PDS3
RECORD_TYPE           = "STREAM"

OBJECT                = TEXT
  PUBLICATION_DATE    = 2017-06-15
  NOTE                = "Description of the CALIB directory"
END_OBJECT            = TEXT
END

        CALIB Directory Content

The CALIB folder contains the various database information required to 
calibrate OSIRIS images.
The information provided is stored in a format readable by the OSIRIS 
calibration pipeline software. 
All information is either readable using either a text editor (ascii
format) of a std PDS data file reader (PDS image data and PDS table data).

The CALIB folder has the following structure:

   CALIB --|-- ABSCAL               : Folder containing the DN/s to W/m^2/sr/nm
           |                          for various optical filter combinations
           |
           |-- 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 optical 
           |                          distorsion model parameters for the 
           |                          cameras
           |
           |-- EXPOSURE             : Folder containing data for shutter flight
           |                          and thus exposure time correction.
           |
           |-- FLATFIELDS           : Folder containing the flatfields for
                                      the various filter combinations


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.