=================================== The 'full' LSS catalogs for randoms =================================== :Summary: LSS catalogs containing information on all of the random targets identified as reachable by DESI fiberassign, for one of the input randoms. The files are split by target type, random file number, and whether of not vetos for angular positions have been applied. :Naming Convention: ``{TARGET}_{RANN}_full{VETO}.ran.fits``, where ``{TARGET}`` is the target type: ``QSO``, ``ELG``, ``ELGnotqso``, ``ELG_HIP``, ``ELG_HIPnotqso``, ``LRG``, ``LRG_main``, for dark or ``BGS_ANY``, ``BGS_BRIGHT`` for bright. ``{RANN}`` is the number between 0 and 17 designating the given random file, and ``{VETO}`` is _noveto if vetos have not been applied and blank otherwise. :Regex: ``[a-zA-Z_]+\_[0-9]+\_full[a-z_]{0,7}.ran.fits`` :File Type: FITS, 1 GB Contents ======== ====== ======= ======== =================== Number EXTNAME Type Contents ====== ======= ======== =================== HDU0_ IMAGE Empty HDU HDU1_ LSS BINTABLE Catalog data ====== ======= ======== =================== FITS Header Units ================= HDU0 ---- This HDU has no non-standard required keywords. Empty HDU. HDU1 ---- EXTNAME = LSS Catalog of randoms Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ====== ============= ==== ======================= KEY Example Value Type Comment ====== ============= ==== ======================= NAXIS1 259 int width of table in bytes NAXIS2 4469949 int number of rows in table DESIDR edr str DESI Data Release ====== ============= ==== ======================= Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ========================== ========= ============ =============================================================================================================================== Name Type Units Description ========================== ========= ============ =============================================================================================================================== LOCATION int64 Location on the focal plane PETAL_LOC*1000 + DEVICE_LOC FIBER int32 Fiber ID on the CCDs [0-4999] TARGETID int64 Unique DESI target ID RA float64 deg Target Right Ascension DEC float64 deg Target declination TILEID int64 Unique DESI tile ID ZWARN int64 Redshift warning bitmask from Redrock COADD_FIBERSTATUS int32 bitwise-AND of input FIBERSTATUS FIBERASSIGN_X float32 mm Fiberassign expected CS5 X location on focal plane FIBERASSIGN_Y float32 mm Fiberassign expected CS5 Y location on focal plane PRIORITY int32 Target current priority COADD_NUMEXP int16 Number of exposures in coadd COADD_EXPTIME float32 s Summed exposure time for coadd COADD_NUMNIGHT int16 Number of nights in coadd MEAN_DELTA_X float32 mm Mean (over exposures) fiber difference requested - actual CS5 X location on focal plane RMS_DELTA_X float32 mm RMS (over exposures) of the fiber difference between measured and requested CS5 X location on focal plane MEAN_DELTA_Y float32 mm Mean (over exposures) fiber difference requested - actual CS5 Y location on focal plane RMS_DELTA_Y float32 mm RMS (over exposures) of the fiber difference between measured and requested CS5 Y location on focal plane MEAN_PSF_TO_FIBER_SPECFLUX float32 Mean of input exposures fraction of light from point-like source captured by 1.5 arcsec diameter fiber given atmospheric seeing TSNR2_ELG_B float32 ELG B template (S/N)^2 TSNR2_LYA_B float32 LYA B template (S/N)^2 TSNR2_BGS_B float32 BGS B template (S/N)^2 TSNR2_QSO_B float32 QSO B template (S/N)^2 TSNR2_LRG_B float32 LRG B template (S/N)^2 TSNR2_ELG_R float32 ELG R template (S/N)^2 TSNR2_LYA_R float32 LYA R template (S/N)^2 TSNR2_BGS_R float32 BGS R template (S/N)^2 TSNR2_QSO_R float32 QSO R template (S/N)^2 TSNR2_LRG_R float32 LRG R template (S/N)^2 TSNR2_ELG_Z float32 ELG Z template (S/N)^2 TSNR2_LYA_Z float32 LYA Z template (S/N)^2 TSNR2_BGS_Z float32 BGS Z template (S/N)^2 TSNR2_QSO_Z float32 QSO Z template (S/N)^2 TSNR2_LRG_Z float32 LRG Z template (S/N)^2 TSNR2_ELG float32 ELG template (S/N)^2 summed over B,R,Z TSNR2_LYA float32 LYA template (S/N)^2 summed over B,R,Z TSNR2_BGS float32 BGS template (S/N)^2 summed over B,R,Z TSNR2_QSO float32 QSO template (S/N)^2 summed over B,R,Z TSNR2_LRG float32 LRG template (S/N)^2 summed over B,R,Z TILELOCID int64 Is 10000*TILEID+LOCATION GOODHARDLOC logical True/False whether the fiber had good hardware ZPOSSLOC logical True/False whether the location could have been assigned to the given target class NTILE int64 Number of tiles target was available on TILES char[51] TILEIDs of those tile, in string form separated by - TILELOCIDS char[159] TILELOCIDs that the target was available for, separated by - RELEASE int16 Imaging surveys release ID BRICKID int32 Brick ID from tractor input BRICKNAME char[8] Brick name from tractor input BRICK_OBJID int32 Imaging Surveys OBJID on that brick NOBS_G int16 Number of images for central pixel in g-band NOBS_R int16 Number of images for central pixel in r-band NOBS_Z int16 Number of images for central pixel in z-band PSFDEPTH_G float32 nanomaggy^-2 PSF-based depth in g-band PSFDEPTH_R float32 nanomaggy^-2 PSF-based depth in r-band PSFDEPTH_Z float32 nanomaggy^-2 PSF-based depth in z-band GALDEPTH_G float32 nanomaggy^-2 Galaxy model-based depth in g-band GALDEPTH_R float32 nanomaggy^-2 Galaxy model-based depth in r-band GALDEPTH_Z float32 nanomaggy^-2 Galaxy model-based depth in z-band PSFDEPTH_W1 float32 nanomaggy^-2 PSF-based depth in WISE W1 PSFDEPTH_W2 float32 nanomaggy^-2 PSF-based depth in WISE W2 PSFSIZE_G float32 arcsec Median PSF size evaluated at the BRICK_PRIMARY objects in this brick in g-band PSFSIZE_R float32 arcsec Median PSF size evaluated at the BRICK_PRIMARY objects in this brick in r-band PSFSIZE_Z float32 arcsec Median PSF size evaluated at the BRICK_PRIMARY objects in this brick in z-band APFLUX_G float32 nanomaggy Total flux in nanomaggies extracted in a 0.75 arcsec radius in the g band at this location APFLUX_R float32 nanomaggy Total flux in nanomaggies extracted in a 0.75 arcsec radius in the r band at this location APFLUX_Z float32 nanomaggy Total flux in nanomaggies extracted in a 0.75 arcsec radius in the z band at this location APFLUX_IVAR_G float32 nanomaggy^-2 Inverse variance of APFLUX_G APFLUX_IVAR_R float32 nanomaggy^-2 Inverse variance of APFLUX_R APFLUX_IVAR_Z float32 nanomaggy^-2 Inverse variance of APFLUX_Z MASKBITS int16 Bitwise mask from the imaging indicating potential issue or blending WISEMASK_W1 binary Bitwise mask for WISE W1 data WISEMASK_W2 binary Bitwise mask for WISE W2 data EBV float32 mag Galactic extinction E(B-V) reddening from SFD98 PHOTSYS char[1] N for the MzLS/BASS photometric system, S for DECaLS HPXPIXEL int64 HEALPixel containing this location at NSIDE=64 in the NESTED scheme GOODPRI logical True/False whether the priority of what was assigned to the location was less or equals to the base priority of the given target class GOODTSNR logical True/False whether the TSNR (class) value used was above the minimum threshold for the given target class ROSETTE_NUMBER int32 Rosette number ID [0-19] (only present in EDR) ROSETTE_R float64 deg Radius from the center of the rosette to the target (only present in EDR) COMP_TILE float64 Assignment completeness for all targets of this type with the same value for TILES LRG_MASK [1]_ binary (lower or uppercase) Imaging mask bits relevant to LRG targets ========================== ========= ============ =============================================================================================================================== .. [1] Only present in LRG samples