In a previous comment thread and the Bosch et al 2018 paper it is made clear that all flux measurements are relative to the photometric reference catalogue. Given this is the case which measurement is chosen in the current PanSTARRS reference catalogue?
Going forward to Rubin, will this decision be repeated? Presumably it is chosen based on the performance of the fitted colour terms in predicting HSC fluxes. Is it for instance the ‘$bandMeanPSFMag’ column from the public release? If we consider point sources as determined by PanSTARRS processing would these therefore be the most tightly correlated with HSC PSF fluxes?
I am constructing a photometric reference for VISTA by positionally cross matching to the PanSTARRS reference. I am currently using ‘curve of growth corrected’ aperture magnitudes but could also use Kron magnitudes. I am bootstrapping to the previous VISTA catalogues in order to produce catalogues with photometry that is consistent with the previous releases but I suppose this isn’t necessarily relevant. I am also experimenting with using the public 2MASS catalogues and colour terms that were calculated from the public VISTA releases.
Many thanks for any input,