fba-version-4.0.0ΒΆ
The subpriority/fba-version-4.0.0 directory holds files recording the desitarget/1.0.0
SUBPRIORITY values used by fiberassign/4.0.0 for some initial DESI Main
Survey tiles. As of these versions of the DESI code, fiberassign was
overwriting the SUBPRIORITY column, meaning that that column recorded
different values to those originally populated by desitarget.
Files in this directory were used to enforce consistent values of SUBPRIORITY
for targets in the desitarget/1.1.1 targeting run used for the
bulk of the DESI Main Survey.
The circumstances that led to the need to enforce SUBPRIORITY values is included
in a README file in this directory.
The subpriority files themselves have names that resemble subpriorities-<TTYPE>.fits,
where TTYPE is one of bright, dark or sky for bright-time and dark-time
targets and sky locations, respectively.