PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM
OBJECT                = TEXT
  INTERCHANGE_FORMAT    = ASCII
  PUBLICATION_DATE      = 2005-07-01
  NOTE                  = "Description of contents of CALIB directory"
END_OBJECT            = TEXT
END

       The CALIB directory contains a brief description of the files within
       the directory (this file), Leapsecond kernel files, Spacecraft Clock
       Conversion files,  Boresight Calibration Reports, HGA Pattern
       Calibration Reports, and USO Characterization Reports. All files in
       the CALIB directory are ASCII text files with variable length records
       delimited by ASCII carriage-return line-feed pairs. All file names in
       this directory contain the string 'yymmdd', where yy, mm, dd indicate
       the year, month, and day respectively of the file creation.

       If a file was not used during collection of the data in this volume or
       if there was no expectation that the file would be needed
       during processing of the data, the file is not included in the CALIB
       directory.

       Leapsecond kernel files are a record of leap seconds
       (past and predicted) that allow proper conversion between ephemeris
       time and UTC. File names are of the form:

                  LSK_yymmdd.TLS

       Each file LSK_yymmdd.TLS is accompanied by a PDS detached minimal
       label with name LSK_yymmdd.LBL.

       Spacecraft Clock Conversion files allow time measured by the
       Spacecraft clock to be converted to other time systems (e.g.,
       ephemeris time or UTC). File names are of the form:

                 TSC_yymmdd.SCK

       Each file TSC_yymmdd.SCK is accompanied by a PDS detached minimal
       Label with name TSC_yymmdd.LBL.

       The Calibration Reports are produced by the Radio Science Systems
       Group (RSSG) at JPL.  Each of these files has a prepended (attached)
       PDS label. The naming convention for these files is:

       BORESIGHT_yymmdd.TXT      Boresight Calibration Report