julienguy
commented
8 years ago - Analytic integration of Gauss-Hermite PSF.
- Optimization of legendre degrees for high order Hermite terms.
- Simplification of convergence procedure.
- Reaches 3% accuracy of fit of spot grid PSF (will never get a perfect adjustment because of the way the spot grid PSF shape varies on the CCD : interpolation between spots leaves discontinuity of derivative of shape properties with X and Y in CCD).