PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM

OBJECT                = TEXT
   PUBLICATION_DATE    = 2009-04-15
   NOTE                = "Description of contents of BROWSE directory
                          in MDIS EDR archive"
END_OBJECT            = TEXT
END

                      BROWSE Directory Contents

Browse products are included optionally in the MDIS archive. They are 
synoptic versions of data products useful to help identify products of 
interest. There may be browse products for all levels of data reduction; 
in this delivery only the browse product for the MDIS EDRs is defined.  

The principal browse product for each EDR is stored in the Portable 
Network Graphics (PNG) format. The data are scaled if necessary from the 
original 12-bit format to an 8-bit format. The dimensions of the PNG file 
are scaled to 128 X 128 regardless of the original image's dimensions, to 
create a "thumbnail." A detached label to the PNG file describes the 
source EDR and the scaling between its raw data values and the PNG file.

If subframing was specified, the full EDR image contains the subframes 
with fill values in those areas that are not within a subframe's boundary.  
This is reflected in the thumbnail for the EDR image; there is not a 
separate thumbnail for each subframe.

In addition to the thumbnails there is an HTML file for each day (based on 
the source EDR file's year and day-of-year in UTC), that displays the 
thumbnails and gives the key parameters for all the EDRs (images) 
collected during that day.  For each EDR links are provided to the 
thumbnail's PNG file and to its detached label. 

The browse products are optional and may not be included in a particular
delivery.

     The following files are found in this directory.

There are no browse products in this delivery.