PDS_VERSION_ID                = PDS3
RECORD_TYPE                   = STREAM
OBJECT                        = TEXT
  NOTE                        = "Comments on MGS Thermal
    Emission Spectrometer (TES) Archive Volumes (ERRATA.TXT)"
  PUBLICATION_DATE            = 1999-07-12
END_OBJECT                    = TEXT
END


COMMENTS ON MGS TES ARCHIVE VOLUMES MGST_0021 THROUGH MGST_0044

     This document contains comments and errata concerning the MGS
Thermal Emission Spectrometer Archive Volumes MGST_0021 through
MGST_0044.

1. Nonstandard file names in SOFTWARE directory

     A few files in the SOFTWARE/SRC directory do not conform to the
ISO 9660 8.3 filename standard. Specifically, the file MAKEFILE does
not have an extension, and the files IO_LABLIB3.C and IO_LABLIB3.H
have more than 8 characters in the filename.

2. Errors in DATA/MARS directory on Volume MGST_0041

     On Volume MGST_0041, for orbits 422 through 425 the SPECTRAL_MASK
field in the RAD004103.TAB file contains an incorrect value.  All 
SPECTRAL_MASK values equal to 31 indicate that Mask 00 was used during
data collection.  

3. Nonstandard keyword in DATA/MARS/*.FMT files and associated software

     On Volume MGST_0021, the DATA/MARS/*.FMT files contain the keyword
PRIMARY_KEYS;  on subsequent volumes, this keyword was modified to 
PRIMARY_KEY and the associated software was adjusted to accomodate the 
change.  Therefore, the software on MGST_0021 is incompatable with the
DATA/MARS/*.FMT files on any volume produced later.  The revised 
software and corresponding *.FMT files can be used to manipulate the 
MGST_0021 data located in the DATA/MARS/*.TAB or DATA/MARS/*.VAR files.

4. Errors in CATALOG directory on Volume MGST_0021

     On Volume MGST_0021, some files in the CATALOG directory do not 
conform to the PDS standard for names of catalog object files. 
Specifically,

     HOST.CAT should be INSTHOST.CAT,
     TESINST.CAT should be INST.CAT,
     TSDRDS.CAT should be DATASET.CAT,
     PERSONEL.CAT should be PERSON.CAT, and
     REFS.CAT should be REF.CAT.

     Also on Volume MGST_0021, the file TARGET.CAT is missing from the
CATALOG directory.

     Also on Volume MGST_0021, the file REFS.CAT is missing the
following reference:    

     OBJECT                        = REFERENCE 
      REFERENCE_KEY_ID             = "ASMAR&RENZETTI1993"
      REFERENCE_DESC               = "Asmar, S.W., and N.A. 
            Renzetti, The Deep Space Network as an Instrument 
            for Radio Science Research, Jet Propulsion Laboratory
            Publication 80-93, Rev. 1, 15 April 1993."
     END_OBJECT                    = REFERENCE

5. Errors in DOCUMENT directory on Volume MGST_0021

     On Volume MGST_0021, the files SDPSIS.PDF and SDPSIS.ASC, section 
3.1 lists a sample label with the statement TABLE = "xxx". It should be 
^TABLE = "xxx".

     On Volume MGST_0021, the PDS label files ARCHSIS.LBL, PROCESS.LBL,
and SDPSIS.LBL in the DOCUMENT directory all have the keyword 
DESCRIPTION. It should be called NOTE to conform to PDS standards for
text object labels.  

     On Volume MGST_0021, the files ARCHSIS.ASC, PROCESS.ASC, and 
SDPSIS.ASC in the DOCUMENT directory are not PDS-compliant because 
they contain TAB characters and have some lines longer than 80 
characters.