Data Set Overview
    =================
      Compressed Twice Mosaicked Image Data Records (C2-MIDRs)
      consist of mosaics generated by computing 3x3 pixel arithmetic
      moving averages from the C1-MIDRs.  Each C2-MIDR is in a
      sinusoidal equal area projection and has an origin at 0 degrees
      latitude, with the central meridian defined as the longitude
      bisecting the mosaic.  Each C2-MIDR has 7168 lines (aligned
      with latitudes) and 8192 samples, arranged as 56 1024x1024
      files on CD-ROM.  C2-MIDRs, with their 675 m pixel widths, are
      designed to cover the planet at reasonably high resolution and
      high signal to noise ratio.
 
      The 1024x1024 files have a VICAR2 format, with embedded VICAR2
      labels.  The data have been placed on CD-ROMs with
      documentation, detached Planetary Data System labels, and
      summary tabular information.
 
      One C2-MIDR frame covers 45 degrees of latitude and longitude.
      Thirty-four C2-MIDRs were generated during the first mapping
      cycle.
 
      Note: The C2-MIDRs also exist as photoproducts that have had
            a linear contrast enhancement applied. Photoproducts
            are generated from the 7K x 8K assemblage of files, so
            there is one photoproduct per C2-MIDR.
 
      Finally, in some cases a cross track seam removal process has
      been applied.  See the CONTENTS.TAB file on the relevant MIDR
      CD-ROM volume for information on which MIDRs have been
      seam-corrected.
 
      Please refer to the F-BIDR (MGN-V-RDRS-5-BIDR-FULL-RES-V1.0)
      data set description for more details on radiometric and
      geometric processing of Magellan SAR data.
 
      Processing Level Id            : 5
      Software Flag                  : N
      Processing Start Time          : 1990-09-16
      Processing Stop Time           : UNK
 
 
    Parameters
    ==========
 
      Data Set Parameter 'RADAR SCALED BACKSCATTER CROSS SECTION'
      -----------------------------------------------------------
        Cross section values that are scaled by some procedure, such
        as dividing by theoretical or empirical scattering laws.
 
        Data Set Parameter Name        : RADAR SCALED BACKSCATTER
                                           CROSS SECTION
        Data Set Parameter Unit        : DIMENSIONLESS
        Sampling Parameter Name        : PIXEL
        Sampling Parameter Unit        : KILOMETER
        Minimum Sampling Parameter     : N/A
        Maximum Sampling Parameter     : N/A
        Sampling Parameter Resolution  : 1.35
        Sampling Parameter Interval    : 0.675
        Minimum Available Sampling Int : N/A
        Noise Level                    : UNK
 
 
    Source Instrument Parameters
    ============================
      Instrument Host ID              : MGN
      Data Set Parameter Name         : RADAR SCALED BACKSCATTER
                                          CROSS SECTION
      Instrument Parameter Name       : RADAR ECHO POWER
      Important Instrument Parameters : 1
 
 
    Processing
    ==========
 
      Processing History
      ------------------
        Source Data Set ID          : MGN-V-RDRS-5-MIDR-C1-V1.0
        Software                    : IDPS
        Product Data Set ID         : MGN-V-RDRS-5-MIDR-C2-V1.0
 
 
      Software 'IDPS'
      ---------------
        The Image Data Processing Subsystem (IDPS) consists of a
        suite of VICAR routines, augmented with specialized modules,
        to ingest F-BIDRs, produce C-BIDRs, and generate MIDRs.
 
        Software Name               : IDPS
        Software Type               : N/A
        Software Release Date       : N/A
        Node ID                     : IDPT
        Cognizant Engineer          : N/A
        Software Access Description : N/A

Overview
    ========
      Unknown