A question for DP0 in addition to trying to use HSC data as an LSST-like precursor (with DP0 being actually-LSST-like as an additional reference), but with a focus on future LSST data previews and eventual data releases. Ultimately my question boils down to whether the DP0 schema are reduced in column number as compared with future releases or are these available columns something to begin building expected workflows from?
More specifically, within the
Source schema there are available numerous flags for various fail-states within the pipeline processing (e.g.
psfFlux_flag_edge) that are not available in the
Object catalog; here you only get access to the “General Failure Flags” of e.g.
It would be beneficial to have access to the more nuanced flags in the coadded image outputs for quality cuts; are they not included out of necessity (either in DP0 or all future DRs)?
If it is not possible to include extra terms, where can I find more information on which sub-flags are combined to the generic failure flag? I have been looking at HSC as precursor data as well and have not found much to go on to elucidate on what possible errors may have occurred to trigger the “generic” flag. Further, even within the
Source catalog there are fewer flags included in the DP0 schema than as compared with HSC PDR3 – are any of these extra HSC-only flags still rolled into the generic e.g.
cmodel_flag states (and just not included in the output DP0 schema)?
Finally, can I double check if the
centroid_flag columns from
Source are equivalent to the
*_centroid_flag flags for each filter in
Object in terms of sub-flag combinations otherwise? I.e., are they both the same in terms of being something like
flag_A OR flag_b OR flag_C?