HIST electron data
R. Selesnick, February 2005

The files each cover one year from 1996 through 2001.
In the file names YYYY is the year:

histeYYYY.txt
	unix text files containing spin averaged electron intensities.
	Each data point is a 384 second average.
	All data are included for which the dipole L is less than 10
	or the radial distance R is less than 3 Earth radii.
	Data gaps are indicated by intensity values of -1.
	Columns are labeled at the top of each file.  They are:
	1. year
	2. UT decimal day of year
	3. radial distance R in Earth radii
	4. dipole L shell
	5-11. intensity in units of electrons/(cm2.s.sr.MeV) for the
	      labeled energies (0.8, 1.1, 1.6, 2.2, 3.2, 4.5, 6.4 MeV)

histePYYYY.txt
	same as above except for intensity perpendicular to the
	magnetic field instead of spin averaged, and the L shell is replaced
	by dipole magnetic local time (MLT).

histeYYYY.pdf
	summary plots of the histeYYYY.txt data files.
	The intensity versus time is plotted with each orbit lined up at
	closest approach.
	A plot of L versus time in the same format is also included.

histePYYYY.pdf
	summary plots of the ratio of perpendicular to spin averaged intensity 
	in the same format as above.  This is a measure of the anisotropy.
	A plot of MLT versus time is also included.

histeLYYYY.pdf
	summary plots of intensity in L versus time format.

histe.pro
	IDL programs for reading the histe data files and making the
	summary plots.  Plotting instructions are in comments at the
	top of the file.