vac/ : Value Added Catalogs
- RELEASE
  - lss
  - lya
    - SPECPROD
$DESI_ROOT : represents the top level of the DESI directory tree.
$DESI_SPECTRO_DATA : raw data
$DESI_SPECTRO_REDUX : processed spectro data
$DESI_SPECTRO_SIM : simulated spectro data
$DESI_SPECTRO_CALIB : spectro calibration data
$DESI_SURVEYOPS : data files used for day-to-day survey operations
$DESI_TARGET : target selection and fiber assignment (see also Myers et al. 2023)
$DESIMODEL : data used for simulating DESI
$DESISURVEY_OUTPUT : outputs from desisurvey and surveysim
$PROTODESI : data and logs from the ProtoDESI campaign

Bit Masks in DESI
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Units in data files

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desidatamodel

vac
RELEASE
lya
SPECPROD
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SPECPROD

SPECPROD refers to the spectroscopic production run. For DESI EDR, this is fuji. It forms part of the catalog version.

VERSION

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