Project: datamanagement
Issue DM-2981: polygon masking in CoaddPsf
We need to create polygon-based masks of the usable area of the focal plane, persist them with exposure, and include them in coaddition of PSFs and aperture corrections. This includes HSC issues HSC-972, HSC-973, HSC-974, HSC-975, HSC-976. At least some of this will be blocked by DM-833, which is the port issue for coaddition of aperture corrections.
Story points: 8