I have created a "symlink repository" for HSC at /scratch/parejkoj/hsc (should be group-writeable by lsst_users), which we can use to do a trial run of processing data with the Gaia DR2 catalog in jointcal and/or processCcd. This is easier than moving data or symlinking into the read-only /datasets/ref_cats.
We now have a /datasets/refCats/htm/v1/gaia_DR2 symlink to my /scratch gaia refcat, which we can use to do a trial processing run with this new catalog in jointcal.
Hsin-Fang Chiang: can you please help me start an appropriate HSC run (PDR1, RC2 or something else small-ish I don't really care) using this? I'm not sure what we need to do to test it other than just demonstrating that it runs to completion: it has more sources than Gaia DR1, but not more than PS1, and it's still only usable for astrometry.