This OTW code uses columns from an input table of (usually acm) data to determine sets of image at unique sky positions. This code is usually used to sort through the large number of acm images taken in a typical night and identify the images sets associated with unique positions on the sky.

The basic input is a table file (usually ACMDAT.table) because this enabled easier experimentation as the code was developed. It should also be easier to modify in the future when the inevitable alterations to the acm FITS headers occur in the future.

For a more detiled description see:
%  table_onsky_sets.sh --help 
%  table_onsky_sets.sh ACMDAT A N 

Usage: table_onsky_sets.sh ACMDAT A N 
arg1 - basename of input table file 
arg2 - query user about a table merge (Y,N,A=auto_merge) 
arg3 - run in debug/verbose mode 

The traget numbers (iset) are returned in a table file with 
base name = "targets". However, if the target.table file was
mergerd with the inpt table, then the "tarbets" table file 
is deleted. 

There are two useful files always created by this routine: 

table_onsky_sets.out   = summarizes the taget numbers and how many images 
                         there are per target number

table_onsky_sets.RADEC = the Ra,Dec (in sexigeciaml format) of each target.