# This is a cubic distortion for the WF2
# taken from the WFPC2 Instrument Handbook
cubic 
-812.003 1.95172e-2 -2.18805 -1.51015e-6 5.06693e-6
1.04063e-6 -4.55094e-10 7.50249e-8 -1.51652e-9 7.34568e-8
 
766.592 2.18607 2.02006e-2 -3.79469e-6 -2.99518e-6
1.05789e-7 -7.47857e-8 -1.67666e-9 -7.55302e-8 3.02579e-10