Project: datamanagement
Issue DM-4214: Initial tests of ShapeletApprox
This will be part of a wider set of test which I am hoping that Jim will fill in as additional stories under DM-1136 Basically, we hope to see how extensive a Shapelet Approximation must be done for a Psf in order to reach a stable result (stable meaning it would not markedly improve with increase in Shapelet order). For this intial test, I propose to compare SingleGaussian, DoubleGaussian, Full, and 2 higher order models. I will also add a model with inner and outer defined to see if those have a significant effect. It will tell use how the existing models line up and which parameters matter. This test will be done using the great3sims subfield organization, and with a single, randomly chosen Psf image from the 0.7 arcsec FWHM library (raw fwhm from PhoSim, the actual fwhm is closer to 0.8 arcsec) This will probably be just the beginning of more extensive ShapeletApprox tests, so this story should be a sub-story of a larger test project which I am hoping Jim will define.
Story points: 6