# Thu 14:19:10 09-Sep-93
# Optical distortion of HST + FOC f/96 relay including COSTAR (f/151).
# The function defined by this fit transforms a position on the photocathode 
# to the corresponding position on the sky.
begin	optref
	xrefmean	509.4757
	yrefmean	508.4286
	xmean		508.8915
	ymean		508.3477
	xshift		5.919991
	yshift		-4.746643
	xscale		0.988906
	yscale		1.010846
	xrotation	359.9051
	yrotation	0.09645579
	surface1	11
			1.	1.
			2.	2.
			2.	2.
			0.	0.
			-100.	-100.
			1124.	1124.
			-100.	-100.
			1124.	1124.
			511.3819	511.9536
			605.2096	-1.018854
			-1.024685	618.6372
	surface2	28
			1.	1.
			5.	4.
			4.	5.
			1.	1.
			-100.	-100.
			1124.	1124.
			-100.	-100.
			1124.	1124.
			-0.3235736	-0.02641475
			-0.01376144	-0.00478122
			-0.8477845	-0.008042289
			-0.0151585	8.178477E-5
			9.113086E-5	-0.035939
			0.001109433	-1.483093
			-0.1041065	-0.03257758
			7.348427E-4	1.668403E-4
			1.666544E-6	-0.06658475
			-1.285649E-5	8.166154E-4
			-0.1339203	6.696858E-7
			-0.03409752	-1.266614E-6
			2.323145E-4	-0.0182707
			9.143020E-6	1.772590E-4
			1.848352E-5	-4.283633E-6
			8.632069E-5	1.726876E-6
			1.460824E-5	-1.517919E-6
			-5.977862E-6	2.202622E-5
			-2.220759E-6	-8.436862E-6
			-6.742767E-6	1.090213E-6