PDS_VERSION_ID = PDS3                                                         
                                                                              
RECORD_TYPE    = STREAM                                                       
                                                                              
OBJECT     = TEXT                                                             
  NOTE             = "MSI BROWSE Directory information file"                  
  PUBLICATION_DATE = 2001-09-11                                               
END_OBJECT = TEXT                                                             
END                                                                           
                                                                              
***** File BROWINFO.TXT                                                       
                                                                              
This directory (BROWSE/) contains the browse facilities, the MSI Digital      
Image Map (DIM) Browse Facility                                               
for the NEAR Multispectral Imager (MSI) archive.  It consists of a            
directory structure ('BROWSE/BASEMAPS/')                                      
with an HTML table file ('MOSAICS.HTM')                                       
and the associated files for the browse                                       
facility, stored under the subdirectory structure. The HTML and image         
files are accessible to the contemporary, popular browsers.                   
                                                                              
                                                                              
NOTE                                                                          
====                                                                          
                                                                              
The labels and manifest tables ('manifest.tab') written for these             
files and the approach used in archiving this facility make use               
of prototype standards which have not yet been formally incorporated          
into the PDS system. For this reason, support for this facility               
within the PDS is extremely limited. Once the standards have been             
fully accepted and integrated into the PDS archives, the labels and           
files in this directory will be updated by the Small Bodies Node to           
reflect the final version of the standard.                                    
                                                                              
                                                                              
Structure                                                                     
=========                                                                     
                                                                              
The browse facility consists of two parts:                                    
                                                                              
  1. An HTML file containing a table of MSI DIMs, listing                     
     some information and links to various related images and other           
     files; and                                                               
                                                                              
  2. A subdirectory structure containing the referenced files.                
                                                                              
                                                                              
=====================================                                         
MSI Digital Image Map Browse Facility                                         
=====================================                                         
                                                                              
HTML table:  BROWSE/BASEMAPS/MOSAICS.HTM                                      
                                                                              
                                                                              
NEAR Shoemaker - MSI Digital Image Maps                                       
---------------------------------------                                       
                                                                              
Produced by: M. Robinson                                                      
                                                                              
The NEAR Shoemaker spacecraft returned over 160,000 images of the             
surface of 433 Eros. A sampling of mosaic products is provided                
which should give a fair sampling of the mapping possibilities                
of this dataset. A tremendous strength of the imaging experiment was          
the repeat coverage for a given area under varying lighting                   
conditions. Several examples of repeat coverage are presented. A              
global mosaic was created from 100s of images (F4_16_00N000). Due to          
Eros' unusual orbital inclination it was not possible to cover the            
asteroid with uniform lighting conditions, thus gross changes in              
brightness from frame-to-frame are common in the global product.              
                                                                              
Questions concerning the DIMs                                                 
should be directed to Mark Robinson, 1847 Sheridan Road,                      
Evanston, IL, 60208, robinson@earth.northwestern.edu,