PDS_VERSION_ID                     = PDS3                                    
RECORD_TYPE                        = STREAM                                  
OBJECT                             = TEXT                                    
  PUBLICATION_DATE                 = 2017-05-12                              
  NOTE                             = "Description of this BROWSE directory." 
END_OBJECT                         = TEXT                                    
END                                                                          

The BROWSE directory within the Mercury Energetic Particle and Plasma
Spectrometer (EPPS) MESSEPPS_DDR data volume contains viewable image products
that are intended to complement the corresponding data products in the DATA
directory within the volume.

Subdirectory EPS_PA_DIST:
                                                              
The EPS_PA_DIST directory contains pitch-angle distribution function              
spectrograms provided as browse plots for selected energetic electron        
events based on the selection criteria outlined in Ho et al.                 
(2012, JGR) during the Mercury Orbit phase.                                  
                                                                             
The pitch angle spectrogram browse products were a one-time delivery         
included in release 9. The pitch angle value table DDRs are included          
in both releases 9 and 11. The pitch angle value tables in release 11        
include the entire EPS data set covering the Mercury Orbit Year 2.           

Subdirectory BROWSE/EPS_PA_DAILY_SPECTROGRAM:

This directory contains plots of the daily pitch angle distributions. Each
file is a PNG format image that corresponds to a TAB file in the
DATA/EPS_PA_DAILY_SPECTROGRAM directory. As is the case with the DATA
directory, the BROWSE/EPS_PA_DAILY_SPECTROGRAM directory is further
organized by year and month with each year directory containing from one to
twelve month directories. These products are provided only for the on orbit
phases of the mission. The plot PNG products are accompanied by PDS labels.

EPS_PASD_IMAGE_<yyyydoy>_DDR_V<nn>.PNG
yyyy = the year in which the data were collected
doy  = the day of the year in which the data were collected
nn   = the product version number

For example the file below is a PNG image file containing data collected in
day 100 (April 10) of 2014:
BROWSE/EPS_PA_DAILY_SPECTOGRAM/2014/APR/EPS_PASD_IMAGE_2014100_DDR_V01.PNG