PDS_VERSION_ID                = PDS3
RECORD_TYPE                   = STREAM
OBJECT                        = TEXT
  NOTE                        = "Comments on MGS Thermal
    Emission Spectrometer (TES) Archive Volumes (ERRATA.TXT)"
  PUBLICATION_DATE            = 1999-08-24
END_OBJECT                    = TEXT
END


COMMENTS ON MGS TES ARCHIVE VOLUMES MGST_0021 THROUGH MGST_0010

     This document contains comments and errata concerning the MGS
Thermal Emission Spectrometer Archive Volumes MGST_0021 through
MGST_0010.

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. Nonstandard file sizes in DATA/MARS/ directory on Volumes MGST_0001 
   through MGST_0008 

    The following TES Standard Data Products contain only one orbit of 
size 130 to 250 Mb; this is significantly larger than the documented 
100 Mb per product (see DOCUMENT/ARCHSIS.ASC section 3.2): 
       MGST_0001:  TES000101, TES000102            
       MGST_0002:  TES000201, TES000202            
       MGST_0003:  TES000301, TES000302            
       MGST_0004:  TES000401, TES000402, TES000403 
       MGST_0005:  TES000501, TES000502, TES000503 
       MGST_0006:  TES000601, TES000602            
       MGST_0007:  TES000701, TES000702, TES000703 
       MGST_0008:  TES000801, TES000802, TES000803 


3. Errors in DOCUMENT/PROCESS.ASC and PROCESS.PDF on Volumes MGST_0061 
   through MGST_0010 

     While converting the document text files PROCESS.ASC and PROCESS.PDF,
superscript and subscript formats were lost and could potentially lead to 
confusion.  The documents should be read with the understanding that 
       10-6     indicates    10, or another value, raised to the -6 power; 
       cm-1     indicates    cm, or another unit, raised to the -1 power; 
      d2?/d?2   indicates    the second derivative is taken;
the equation on line 476 should read 
      dIRF/dT = 3*af*(detector_temp)^2 + 2*bf*detector_temp + cf; 
and the equation on line 493 should read 
      Corr_IRF = IRF + dIRF/dT *deltaT + d2IRF/dT2 * deltaT^2 / 2! . 


4. Errors in DOCUMENT directory on Volumes MGST_0061 through MGST_0044 

     On Volumes MGST_0061 and MGST_0041 through MGST_0044, the files 
SDPSIS.PDF and SDPSIS.ASC, section 3.1 lists a sample label with the 
nested PDS object "PRIMARY_KEYS". It should be "PRIMARY_KEY".


5. 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 accommodate the 
change.  Therefore, the software on MGST_0021 is incompatible 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.


6. 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


7. 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.