All ground-based images that are stored in the Yohkoh database use the
FITS file format. After you have determined the file
name that you wish to read, you can use RFITS or YODAT to read it.
A sample call is:
IDL> img = rfits('/yd0/gbo92_37a/gkm920907.1442', head=head)
The /scale option can be used for data that are stored as byte or
integer, but were originally floating point.