Project: datamanagement
Issue DM-6170: PSF fitting study
Investigate the [Piff|https://github.com/rmjarvis/Piff/] PSF modelling code. Experiment with applying it to realistic LSST (or precursor) data. Discuss whether it is an improvement over existing techniques, and a recommendation as to whether it should be adopted in the stack. (NB writing the code to incorporate it into the stack is not a requirement of this epic, but may be a desirable side-effect). If Piff is still too immature for this to be useful, investigate Kendrick Smith's [hscpsf|https://github.com/lsst-dm/meas_extensions_hscpsf/] code.
Story points: 15