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The data files on this disc are binary files.  Floating-point data are in the 
INTEL 32-bit fp format.  Data records at 0.512 second intervals contain the 
following parameters:

   Time, MEA Channels 1-16, MEA Background, MEA Channel 17, Pitch-angle, L, 
        Bmodel, Equatorial Bmodel, Longitude, Latitude, and Altitude.  

The magnetometer was not deployed until about Orbit 50, so pitch-angle is not 
available before then.  The spin rate is also much higher during the first 50 
orbits.

This disc contains a number of utility files in addition to the CRRES MEA data 
files.  The files are as follows:


BACKGND
This is a text file which discusses the background correction in the MEA.


CHEMREL
This ASCII file is a listing of the chemical releases performed by CRRES.  
It includes orbit parameters for the releases and descriptions of the chemical 
packages.


GEFDATA
This file contains the MEA gemetric factors and energy centroids for power-law 
spectra from n=0 to n=-8.  It is an ASCII file used by MEAPLOT.


GEFDESC
This ASCII file describes the MEA geometric-energy factor determination and 
includes various parameters related to the energy response of the individual 
channels.  The calibration data from which the geometric factors were obtained 
are also in this file.


MEA.BMP
Graphic file showing the internal plan of the MEA instrument.


MEADESC
A description of the MEA instrument.  It is the text portion of the instrument 
description paper published in the Journal of Spacecraft and Rockets in the 
July-August 1992 issue.


MEAFOR
FORTRAN listing of the MEAPLOT.EXE program which is used to access the MEA 
data files on this disc.  It is provided for those who wish to make minor 
modifications to the program to accomplish special tasks.  NOTE: Some calls 
are specific to the 16-bit Lahey F77L compiler.  These must be modified if 
the software is to be recompiled with a different compiler.  Please note 
warning at the top of this README file.


MEAPLOT.EXE
DOS-compatible software for a PC.  This program uses the data files contained 
on this disc as input.  It produces and ASCII text file in which variables are 
separated by commas (a .CSV file) for ease of import to spread-sheets and plot 
programs.  It is prompting.  It permits averaging by # of samples, selection 
of limited pitch-angles, error-correction, basic background correction, 
conversion from counts to flux, extraction of numerous ephemeris parameters, 
etc.  It is fully prompting.


SURVEY
This file contains a list of all of the CRRES orbits by orbit number, date, 
day-of-year, start time, stop time, and a short description of features seen 
in the data.

For further information, contact Al Vampola at (310) 375-1012.