Shapelet fits to PANTER PSF Measurements
The current plan is the following: the CCD and the mirror are rotated together with respect to the fixed X-ray source, but, in order to cover the outer PSFs, the CCD is shifted along its plane four times. This will result in a grid of 11 x 11 PSFs, spaced by 6'. In addition, in order to get a denser sampling of smaller off-axis angles, there will be another central grid of 6 x 6 PSFs, also spaced by 6', but displaced with respect to the other grid by 3'. Vadim has produced the attached pdf to illustrate to geometrical situation.