LSScats

$DESI_ROOT/vac/RELEASE/lss/VERSION/LSScats contains the directories for full (including information on all targets) and clustering (only information needed for clustering measurements and weights/cuts to optimize those clustering measurements). Files detailing the estimated n(z) in units of (h/Mpc)^3 are also here.

Catalogs were created for the four extra-galactic DESI target types: LRG, ELG, QSO, and BGS. For all except QSO, catalogs are produced for additional sub-type definitions. In the cases where the sub-type corresponds to a bitname from SV3 targeting, we use that name:

• The additional LRG selection, named LRG_main, keeps only targets that satisfy the main survey selection (see Zhou et al. (2022) for details).

• The ELG sample is cut in three additional ways. First, ELG_HIP contains only the ~75% of the ELG sample that is at higher priority (see Raichoor et al. (2022) for more details). Then, for each of ELG and ELG_HIP, we also remove QSO targets.

• QSO targets have the highest priority and one may wish to therefore treat any targets that satisfy both the QSO and ELG selections within the QSO analysis.

• Finally, there are two BGS samples: BGS_ANY and BGS_BRIGHT. BGS_ANY is the combination of both the BGS_BRIGHT and BGS_FAINT BGS selections. See Hahn et al. (2023) for more details.

• TARGET_PHOTSYS_nz.txt : Target densities as a function of redshift
• clustering
• full