priminfo-DR-VERSION

The priminfo-{DR}-{VERSION} directory stores matches between secondary targets and DESI primary targets. Here, DR is the Legacy Surveys data release used to select the primary targets, and VERSION is the release number (tag) of the desitarget code version on GitHub in the format X.Y.Z.

Matches to primary targets are grouped by (nested) HEALPixel number in filenames that resemble targets-no-obscon-hp-{HP}.fits.