PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM
OBJECT                = TEXT
  PUBLICATION_DATE    = 2017-05-12
  NOTE                = "Description of the DOCUMENT directory contents
                         for the MASCS calibrated and derived data archive
                         volume."
END_OBJECT            = TEXT
END

This subdirectory contains the documentation that will be needed in order to 
understand and analyze the CDR/DDR/DAP data products. Files are stored in 
PDF and ASCII formats.

DOCINFO.TXT: Identifies and describes the function of each file in the
DOCUMENT directory.

UVVS_CDR_DDR_SIS.TXT: The MASCS UVVS CDR/DDR SIS: "MESSENGER MASCS UVVS 
Calibrated and Derived Data Record Software Interface Specification" in 
ASCII text format. Only the text is provided; for illustrations, tables, 
etc. the PDF should be consulted.

UVVS_CDR_DDR_SIS.PDF: The MASCS UVVS CDR/DDR SIS: "MESSENGER MASCS UVVS 
Calibrated and Derived Data Record Software Interface Specification" in 
Adobe Acrobat format.  Note that, in contrast to the .TXT version, the 
illustrations, tables, etc. will display appropriately.

UVVS_CDR_DDR_SIS.LBL: A detached PDS label that describes the text and PDF 
files.

VIRS_CDR_DDR_DAP_SIS.TXT: The MASCS VIRS CDR/DDR/DAP SIS: "MESSENGER MASCS 
VIRS Calibrated Data Record, Derived Data Record, and Derived Analysis 
Product Software Interface Specification" in ASCII text format. Only the 
text is provided; for illustrations, tables, etc. the PDF should be 
consulted.

VIRS_CDR_DDR_DAP_SIS.PDF: The MASCS VIRS CDR/DDR/DAP SIS: "MESSENGER MASCS 
VIRS Calibrated Data Record, Derived Data Record, and Derived Analysis 
Product Software Interface Specification" in Adobe Acrobat format. Note 
that, in contrast to the .TXT version, the illustrations, tables, etc. will 
display appropriately.

VIRS_CDR_DDR_DAP_SIS.LBL: A detached PDS label that describes the text and 
PDF files.

UVVS_EDR2CDR.TXT: Detailed procedures and tables for EDR to CDR calibration.

UVVS_EDR2CDR.LBL: The detached label for the UVVS calibration document.

VIRS_EDR2CDR.TXT: Detailed procedures and tables for EDR to CDR calibration.

VIRS_EDR2CDR.LBL: The detached label for the VIRS calibration document.

UVVS_CDR2DDR.TXT: Detailed procedures and tables for CDR to Atmosphere DDR 
data reduction. 

UVVS_CDR2DDR.LBL: The detached label for the CDR to Atmosphere DDR document.

UVVS_CDR2DDR_SUR.TXT: Detailed procedures and tables for CDR to Surface DDR 
data reduction. 

UVVS_CDR2DDR_SUR.LBL: The detached label for the CDR to Surface DDR document.

VIRS_CDR2DDR.TXT: Detailed procedures and tables for CDR to DDR data 
reduction.

VIRS_CDR2DDR.LBL: The detached label for the CDR to DDR document.

MASCS_CAL_RPT.TXT: The MESSENGER instrument calibration report for MASCS, in 
ASCII text format. Only the text is provided; for illustrations, tables, 
etc. the PDF should be consulted.

MASCS_CAL_RPT.PDF: The MESSENGER instrument calibration report for MASCS, in 
Adobe Acrobat format.  Note that, in contrast to the .TXT version, the 
illustrations, tables, etc. will display appropriately.

MASCS_CAL_RPT.LBL: A detached PDS label that describes the text and PDF 
files.

VIRS_DARK_ANALYSIS_REPORT_1.PDF: "VIRS IR Dark Analysis Report 1: 
Operational Changes" in Adobe Acrobat format. Details the evolving 
understanding of MASCS dark current during Mercury orbit, describing 
temperature dependence and effects on the NIR data in particular. Note that, 
in contrast to the .TXT version, the illustrations, tables, etc. will 
display appropriately.

VIRS_DARK_ANALYSIS_REPORT_1.TXT: "VIRS IR Dark Analysis Report 1: 
Operational Changes" in ASCII text format. Details the evolving 
understanding of MASCS dark current during Mercury orbit, describing 
temperature dependence and effects on the NIR data in particular. Only the 
text is provided; for illustrations, tables, etc. the PDF should be 
consulted.

VIRS_DARK_ANALYSIS_REPORT_1.LBL: A detached PDS label that describes the 
text and PDF file.

VIRS_DARK_ANALYSIS_REPORT_2.PDF: "VIRS IR Dark Analysis Report 2: 
Calibration Changes" in Adobe Acrobat format. Describes the adjustments to 
MASCS calibration to improve dark subtraction and account for pixels 
saturated due to temperature. Note that, in contrast to the .TXT version, 
the illustrations, tables, etc. will display appropriately.

VIRS_DARK_ANALYSIS_REPORT_2.TXT: "VIRS IR Dark Analysis Report 2: 
Calibration Changes" in ASCII text format. Describes the adjustments to 
MASCS calibration to improve dark subtraction and account for pixels 
saturated due to temperature. Only the text is provided; for illustrations, 
tables, etc. the PDF should be consulted.

VIRS_DARK_ANALYSIS_REPORT_2.LBL: A detached PDS label that describes the 
text and PDF file.

UVVS_CALIBRATION_CHANGES_PDS7.PDF: "UVVS Calibration Changes for PDS 
Delivery 7" in Adobe Acrobat format. Describes the need for and method of 
removing solar background signal in several emission wavelength regions. 

UVVS_CALIBRATION_CHANGES_PDS7.TXT: "UVVS Calibration Changes for PDS 
Delivery 7" in ASCII text format. Describes the need for and method of 
removing solar background signal in several emission wavelength regions. 

UVVS_CALIBRATION_CHANGES_PDS7.LBL: A detached PDS label that describes the 
text and PDF file.

VIRS_CALIBRATION_CHANGES_PDS9.PDF: "VIRS Calibration Changes for PDS 
Delivery 9" in Adobe Acrobat format. Describes the calibration changes 
implemented to simplify the handling of dark subtractions for VIRS, and an 
adjustment to the DATA_QUALITY_INDEX provided in the data records.

VIRS_CALIBRATION_CHANGES_PDS9.TXT: "VIRS Calibration Changes for PDS 
Delivery 9" in ASCII text format. Describes the calibration changes 
implemented to simplify the handling of dark subtractions for VIRS, and an 
adjustment to the DATA_QUALITY_INDEX provided in the data records. 

VIRS_CALIBRATION_CHANGES_PDS9.LBL: A detached PDS label that describes the 
text and PDF file.

UVVS_CALIBRATION_CHANGES_PDS11.PDF: "MESSENGER MASCS UVVS Calibration Update 
- PDS 11" in Adobe Acrobat format. Describes the UVVS FUV CDR calibration 
sensitivity update. 

UVVS_CALIBRATION_CHANGES_PDS11.TXT: "MESSENGER MASCS UVVS Calibration Update 
- PDS 11" in ASCII text format. Describes the UVVS FUV CDR calibration 
sensitivity update. 

UVVS_CALIBRATION_CHANGES_PDS11.LBL: A detached PDS label that describes the 
text and PDF file.

VIRS_CALIBRATION_CHANGES_PDS11.PDF: "VIRS Calibration Changes for PDS 
Delivery 11" in Adobe Acrobat format. Describes changes to the calibration 
procedure that have been implemented to remedy an observed shift in the 
wavelength scale of the VIRS visible channel. 

VIRS_CALIBRATION_CHANGES_PDS11.TXT: "VIRS Calibration Changes for PDS 
Delivery 11" in ASCII text format. Describes changes to the calibration 
procedure that have been implemented to remedy an observed shift in the 
wavelength scale of the VIRS visible channel. 

VIRS_CALIBRATION_CHANGES_PDS11.LBL: A detached PDS label that describes the 
text and PDF file.

CALCIUM_CHAMBERLAIN_MODELS.PDF: Description of the calcium Chamberlain 
models in Adobe Acrobat format.

CALCIUM_CHAMBERLAIN_MODELS.TXT: Description of the calcium Chamberlain 
models in ASCII text format. Only the text is provided; for equations, 
tables, etc. the PDF should be consulted.

CALCIUM_CHAMBERLAIN_MODELS.LBL: A detached PDS label that describes the 
text and PDF file.