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Table: desi_dr1.fiberassign
(The bold columns are indexed columns)
| Column Name | Description | Datatype |
|---|---|---|
| device_loc | Device location on focal plane [0-523] | INTEGER |
| elat | Ecliptic latitude | DOUBLE |
| elon | Ecliptic longitude | DOUBLE |
| fa_target | Targeting bit internally used by fiberassign (linked with FA_TYPE) | BIGINT |
| fa_type | Target type (science, standard, sky, safe, suppsky) | SMALLINT |
| fiber | Fiber ID on the CCDs [0-4999] | INTEGER |
| fiberassign_x | Expected CS5 X on focal plane | REAL |
| fiberassign_y | Expected CS5 Y on focal plane | REAL |
| fiberstatus | Fiber status mask. 0=good | INTEGER |
| glat | Galactic latitude | DOUBLE |
| glon | Galactic longitude | DOUBLE |
| htm9 | Ninth level (~10 arcmin resolution) Hierarchical Triangular Mesh index (Szalay et al. 2007) | INTEGER |
| id | Arbitrary primary key composed from targetid, tileid, location | VARCHAR |
| lambda_ref | Wavelength at which targets should be centered on fibers | REAL |
| location | Location on the focal plane PETAL_LOC*1000 + DEVICE_LOC | INTEGER |
| nest4096 | Nested-scheme HEALPix (Gorski et al. 2005) index with Nsides=4096 (~52 arcsec size) | INTEGER |
| parallax | Reference catalog parallax | REAL |
| petal_loc | Petal location [0-9] | SMALLINT |
| pmdec | Reference catalog proper motion in the Dec direction | REAL |
| pmra | Reference catalog proper motion in the RA direction | REAL |
| priority | Target current priority | INTEGER |
| random_id | Random ID in the range 0.0 => 100.0 (not unique) | REAL |
| ref_epoch | Reference epoch for Gaia/Tycho astrometry. Typically 2015.5 for Gaia | REAL |
| ring256 | Ring-scheme HEALPix (Gorski et al. 2005) index with Nsides=256 (~14 arcmin size) | INTEGER |
| subpriority | Random subpriority [0-1] to break assignment ties | DOUBLE |
| target_dec | Target declination | DOUBLE |
| targetid | Unique DESI target ID | BIGINT |
| target_ra | Target right ascension | DOUBLE |
| tileid | Unique DESI tile ID | INTEGER |
