PDS_VERSION_ID         = PDS3
RECORD_TYPE            = STREAM
OBJECT                 = TEXT
  PUBLICATION_DATE     = 2009-03-17
  INTERCHANGE_FORMAT   = ASCII
  NOTE                 = "Description of correction directory contents."
END_OBJECT             = TEXT
END
 
Correction Directory:
---------------------

The files nac_qe_correction.tab and wac_qe_correction.tab contain a normalized
wavelength-dependent correction function to be applied to the quantum 
efficiencies of the NAC and WAC during absolute calibration. 

The file correctionfactors_qecorr.tab contains filter-specific correction 
factors to be applied to each filter combination individually, and 
properly takes into account the quantum efficiency correction described above.
These numbers were derived from analysis of post-Jupiter flight images of
standard stars, along with one observation of Enceladus.

The pol_correction.tab file contains correction factors derived from satellite
observations for a limited set of polarized filter combinations.