This document describes the data format for OS tool. OS tool allows you to run AO on an reference_object independent of your a sciense object. ostool will transmits these offsets to the AO system from a table provided by the observer.

1. Files in in text. 
	The columns of data are separated by spaces.
	Lines should be limited to less that 250 characters. 
	Lines begining with '#' are considered comments.

2. Column1 - The UT day in yy-mm-dd format.
   Column2 - The UT time in hh:mm:ss format
	Column3 - The distance between the two object in RA, in arcseconds.
	Column4 - The distance between the two object in DEC, in arcseconds.
	Remaining columns in the line are ignored.

3. Below is a sample. In this experiment, the AO object is
	 Io, and the observed object is Ansa.

	#
	# Io - Jupiter Ring w Ansa, 4/25/03
	#
	# ---------UT-------   -----Offsets-----
	# yy-mm-dd hh:mm:ss     RA (")    Dec (")  
	#
	2003-04-25  5:28:00   47.809   -14.767
	2003-04-25  5:29:00   47.547   -14.686
	2003-04-25  5:30:00   47.285   -14.606
	2003-04-25  5:31:00   47.023   -14.525
	2003-04-25  5:32:00   46.761   -14.444
	2003-04-25  5:33:00   46.499   -14.364