LASCO DAILY MEDIAN IMAGES (ROLLED)

created by mk_daily_med.pro


PROCEDURE:

	For a given day, each image that satifies the selection conditions 
(default naxis1=1024, filter and polarizer as requested), up to 25, is selected. 
The median image is computed by taking the median non-zero value of all the images 
for each pixel. This image is then normalized to the median exposure time.  

	If the number of images is less than 7 for a day, a second pass is taken.  In 
the second pass, all images within +/- 2 days of the given day are used, up to 15 per day. 

	For special cases, a list of files may be used to generate a median image, and 
then less than 7 may be used. If less than 25, the number of files used should be in 
the header. 


FILE NAMING scheme:

 	td_fwpw_yymmddr.fts

	where 	t  = telescope [1,2,3]
		d  = d (daily image)
		fw = filter abbreviation from abbrv_filpol.pro
		pw = polarizer abbreviation from abbrv_filpol.pro
		yymmdd = date of the image
		r = r (indicates S/C roll)

See FITS header for additional information about a given image.


Written 2001/12/07 by N. Rich, NRL <nathan@calliope.nrl.navy.mil>.