To compute the integrated brightness and mass of a region from
a fits image (e.g. SMM, MK3, MK4, LASCO C2) use the program:
fm10.pro
You need to copy over all the .pro files in this subdirectory to run
fm10.pro

This program assumes all of the coronal 
material is located in the plane-of-the-sky.

You can integrate over an image:
	IDL>  fm10, 'cme_fits_file'

or you can compute the EXCESS brightness
and mass by specifying a background image:
The 2nd image (ref_fits_file) will be subtracted
from the first image (cme_fits_file)
e.g. CME image minus a pre-CME image)
	IDL> fm10, 'cme_fits_file', 'ref_fits_file'

IN fm10, you need to select a method for determining the area over
which you wish to integrate:
methods include keyboard input,or mouse cursor to define a wedge or
a polygon:

Keyboard input to define curved wedge [kc]
Mouse cursor   to define curved wedge [mc]
Keyboard input to define wedge        [kw]
Mouse cursor   to define wedge        [mw]
Mouse cursor   to define polygon      [p]
Read disk file to define polygon      [f]
Cursor position                       [c]
Quit program                          [q]
action: 

When using keyboard input you must use radial and angular min/max values
that are within the SMM image field-of-view, since SMM images are in quadrants, 
not full sun.

SMM field-of-view is from 1.8 to 4.1 solar radii 
at all position angles, and out to 6 solar radii at selected angles in the 
corners of a square field-of-view.


OUTPUT:

The program produces 3 output files:

1. An ascii file ending in .fm that contains the 
integrated absolute brightness and mass in the selected image area

2. A gif file of the SMM (or other white light) image containing an
overlay that shows the area of brightness/mass integration. 

3. An ascii file ending in .pv that contains the coordinates of the
polygon vertices used to compute the brightness and mass. 
You can input the .pv file to the program if you wish to integrate 
many images over the same polygon.