Discussed whether Difference Imaging Pipeline (Level 1) had products that could withstand compression.
Discussed what additional resources might best help get this effort rolling (names have been redacted).
Further discussion of tests that need to be performed.
Image (compressed vs. uncompressed) comparison thought to be of only marginal use.
Catalog level comparison should compare, position, mag/flux density, size/shape (and existence). It is thought that Princeton QA effort may have most of this already (and should inform item 2).
May also need comparison of PSF products.
Action items
Krzysztof Findeisen will look into both pipeline products and their downstream use (e.g. whether they are re-used for forced photometry