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mtl-done-tiles
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:Summary: Record of tiles with MTL updates for primary targets.
:Naming Convention: ``mtl-done-tiles.ecsv``
:Regex: ``mtl-done-tiles\.ecsv``
:File Type: ecsv, 200 KB

Contents
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EXTNAME    Type     Contents
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MTLTILE    TABLE    Tile information
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Required Data Table Columns
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Name         Type    Units Description
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TILEID       int32         Unique tile ID on which MTL updates occurred
TIMESTAMP    str         s UTC/ISO time when MTL updates on tile completed
VERSION      str           Version of desitarget code used to update ledgers
PROGRAM      str           DESI program type - BRIGHT, DARK or BACKUP
ZDATE        int64         Final night (YYYYMMDD) when redshifts were acquired
ARCHIVEDATE  int64         Date (YYYYMMDD) on which redshifts were archived
============ ======= ===== =================================================