These are a subset of raw image files from the Mark IV Data Disk 18a.
Tom Droege collected the images on April 13, 2001.  Each raw image 
is 8328960 bytes (about 8 Megabytes) in size.  There are 24 files, 
so the total data volume is about 200 Megabytes.

  This particular subset of the raw images can serve as a test for
the reduction and analysis pipeline written by Michael Richmond.

  Below is a list of the files in the subset.  There is a list of the
properties of each file (exposure time, RA and Dec) in the accompanying
file "make_list.out".  Beware -- the FITS header values of RA and Dec
are systematically off by about a half-degree.

                                        Michael Richmond  
					May 20, 2001

# darks
hira2011765.fits I        2452012.76537   99.5 dark      192.8    0.0 
hvra2011765.fits V        2452012.76535   99.5 dark      192.8    0.0 
hira2011780.fits I        2452012.78067  100.5 dark      198.3    0.0 
hvra2011780.fits V        2452012.78065  100.5 dark      198.3    0.0 
hira2011795.fits I        2452012.79594  100.3 dark      203.8    0.0 
hvra2011795.fits V        2452012.79593  100.3 dark      203.8    0.0 
hira2011811.fits I        2452012.81123   99.8 dark      209.3    0.0 
hvra2011811.fits V        2452012.81122   99.7 dark      209.3    0.0 
hira2011826.fits I        2452012.82650  100.1 dark      214.8    0.0 
hvra2011826.fits V        2452012.82648  100.1 dark      214.8    0.0 

# night-sky images, with moderate cloud cover
hira2011797.fits I        2452012.79786  100.3 object    204.5    0.0 
hira2011799.fits I        2452012.79977  100.2 object    205.3    0.0 
hvra2011797.fits V        2452012.79784  100.5 object    204.5    0.0 
hvra2011799.fits V        2452012.79976  100.3 object    205.3    0.0 
hira2011801.fits I        2452012.80168   99.4 object    205.8    0.0 
hira2011803.fits I        2452012.80359   99.9 object    206.5    0.0 
hira2011805.fits I        2452012.80550   99.8 object    207.3    0.0 
hira2011807.fits I        2452012.80742   99.9 object    208.0    0.0 
hira2011809.fits I        2452012.80932   99.9 object    208.5    0.0 
hvra2011801.fits V        2452012.80167   99.5 object    205.8    0.0 
hvra2011803.fits V        2452012.80358  100.0 object    206.5    0.0 
hvra2011805.fits V        2452012.80549   99.8 object    207.3    0.0 
hvra2011807.fits V        2452012.80740  100.0 object    208.0    0.0 
hvra2011809.fits V        2452012.80931  100.0 object    208.5    0.0