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Copy file name to clipboardexpand all lines: doc/DESI_SPECTRO_REDUX/SPECPROD/exposures-SPECPROD.rst
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.. rst-class:: columns
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====================== ======== =================
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Name Type Units Description
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====================== ======== =================
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NIGHT int32 Observing night
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EXPID int32 DESI Exposure number
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TILEID int32 DESI Tile ID
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TILERA float64 deg RA of tile given in fiberassign file
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TILEDEC float64 deg DEC of tile given in fiberassign fileDEC of tile given in fiberassign file
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MJD float64 Modified Julian Date when shutter was opened for this exposure.
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SURVEY char[7] Survey name
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PROGRAM char[6] Program name
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FAPRGRM char[*] Fiberassign program name
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FAFLAVOR char[*] Fiberassign flavor name
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EXPTIME float64 s Length of time shutter was open.
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EFFTIME_SPEC float64 s Effective exposure time for nominal conditions derived from the TSNR2 fits to the spectroscopy
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GOALTIME float64 s Goal for total effective exposure time for the tile
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GOALTYPE char[6] The intended observing conditions for the tile
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MINTFRAC float64 Minimum fraction of GOALTIME acceptable for considering a tile complete
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AIRMASS float32 Average airmass during this exposure.
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EBV float64 Galactic extinction E(B-V) reddening from SFD98_
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SEEING_ETC float64 arcsec Average FWHM atmospheric seeing during this exposure as measured by ETC.
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EFFTIME_ETC float32 s Effective exposure time for nominal conditions inferred from ETC data
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TSNR2_ELG float32 ELG template (S/N)^2 summed over B,R,Z
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TSNR2_QSO float32 QSO template (S/N)^2 summed over B,R,Z
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TSNR2_LRG float32 LRG template (S/N)^2 summed over B,R,Z
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TSNR2_LYA float64 LYA template (S/N)^2 summed over B,R,Z
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TSNR2_BGS float32 BGS template (S/N)^2 summed over B,R,Z
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TSNR2_GPBDARK float32 GPBDARK template (S/N)^2 summed over B,R,Z
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TSNR2_GPBBRIGHT float32 GPBBRIGHT template (S/N)^2 summed over B,R,Z
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TSNR2_GPBBACKUP float32 GPBBACKUP template (S/N)^2 summed over B,R,Z
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LRG_EFFTIME_DARK float32 s Effective exposure time for nominal dark conditions inferred for LRG targets
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ELG_EFFTIME_DARK float32 s Effective exposure time for nominal dark conditions inferred for ELG targets
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BGS_EFFTIME_BRIGHT float32 s Effective exposure time for nominal bright conditions inferred for BGS targets
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LYA_EFFTIME_DARK float64 s Effective exposure time for nominal dark conditions inferred for LYA targets
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GPB_EFFTIME_DARK float32 s Effective exposure time for nominal dark conditions inferred for GPB targets
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GPB_EFFTIME_BRIGHT float32 s Effective exposure time for nominal bright conditions inferred for GPB targets
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GPB_EFFTIME_BACKUP float32 s Effective exposure time for nominal backup conditions inferred for GPB targets
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TRANSPARENCY_GFA float64 Average airmass during this exposure as measured by GFA.
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SEEING_GFA float64 arcsec Average FWHM atmospheric seeing during this exposure as measured by GFA.
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FIBER_FRACFLUX_GFA float64 Fraction of the flux entering the fiber relative to nominal 1.1" seeing using the PSF inferred from the GFAs
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FIBER_FRACFLUX_ELG_GFA float64 Fraction of the flux entering the fiber relative to nominal 1.1" seeing using the PSF inferred from the GFAs for a source with an ELG profile (0.45" exponential galaxy profile)
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FIBER_FRACFLUX_BGS_GFA float64 Fraction of the flux entering the fiber relative to nominal 1.1" seeing using the PSF inferred from the GFAs for a source with a BGS profile (deV profile, half light radius of 1.5")
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FIBERFAC_GFA float64 Fraction of light entering a fiber relative to expectations for 1.1" seeing, transparency 1, for an object with a PSF profile, measured by comparing the flux integrated over a 107 micron diameter circle on the GFA images centered at the PlateMaker expectations for where stars should land.
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FIBERFAC_ELG_GFA float64 Same as FIBERFAC_GFA except for an ELG profile
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FIBERFAC_BGS_GFA float64 Same as FIBERFAC_GFA except for a BGS profile
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AIRMASS_GFA float64 Average airmass during this exposure as measured by GFA.
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SKY_MAG_AB_GFA float64 Sky background in the GFA passband, measured from the GFA backgrounds.
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SKY_MAG_G_SPEC float64 Sky background measured in the spectroscopy integrated over the DECam g passband, AB mags.
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SKY_MAG_R_SPEC float64 Sky background measured in the spectroscopy integrated over the DECam r passband, AB mags.
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SKY_MAG_Z_SPEC float64 Sky background measured in the spectroscopy integrated over the DECam z passband, AB mags.
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EFFTIME_GFA float64 s Effective exposure time for nominal conditions inferred from GFA data
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EFFTIME_DARK_GFA float64 s Effective exposure time for nominal dark conditions inferred from GFA data
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EFFTIME_BRIGHT_GFA float64 s Effective exposure time for nominal bright conditions inferred from GFA data
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EFFTIME_BACKUP_GFA float64 s Effective exposure time for nominal backup conditions inferred from GFA data
TILERA float64 deg RA of tile given in fiberassign file
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TILEDEC float64 deg DEC of tile given in fiberassign fileDEC of tile given in fiberassign file
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MJD float64 Modified Julian Date when shutter was opened for this exposure.
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SURVEY char[7] Survey name
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PROGRAM char[6] Program name
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FAPRGRM char[*] Fiberassign program name
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FAFLAVOR char[*] Fiberassign flavor name
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EXPTIME float64 s Length of time shutter was open.
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EFFTIME_SPEC float64 s Effective exposure time for nominal conditions derived from the TSNR2 fits to the spectroscopy
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GOALTIME float64 s Goal for total effective exposure time for the tile
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GOALTYPE char[6] The intended observing conditions for the tile
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MINTFRAC float64 Minimum fraction of GOALTIME acceptable for considering a tile complete
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AIRMASS float32 Average airmass during this exposure.
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EBV float64 Galactic extinction E(B-V) reddening from SFD98_
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SEEING_ETC float64 arcsec Average FWHM atmospheric seeing during this exposure as measured by ETC.
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EFFTIME_ETC float32 s Effective exposure time for nominal conditions inferred from ETC data
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TSNR2_ELG float32 ELG template (S/N)^2 summed over B,R,Z
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TSNR2_QSO float32 QSO template (S/N)^2 summed over B,R,Z
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TSNR2_LRG float32 LRG template (S/N)^2 summed over B,R,Z
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TSNR2_LYA float64 LYA template (S/N)^2 summed over B,R,Z
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TSNR2_BGS float32 BGS template (S/N)^2 summed over B,R,Z
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TSNR2_GPBDARK float32 GPBDARK template (S/N)^2 summed over B,R,Z
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TSNR2_GPBBRIGHT float32 GPBBRIGHT template (S/N)^2 summed over B,R,Z
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TSNR2_GPBBACKUP float32 GPBBACKUP template (S/N)^2 summed over B,R,Z
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LRG_EFFTIME_DARK float32 s Effective exposure time for nominal dark conditions inferred for LRG targets
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ELG_EFFTIME_DARK float32 s Effective exposure time for nominal dark conditions inferred for ELG targets
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BGS_EFFTIME_BRIGHT float32 s Effective exposure time for nominal bright conditions inferred for BGS targets
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LYA_EFFTIME_DARK float64 s Effective exposure time for nominal dark conditions inferred for LYA targets
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GPB_EFFTIME_DARK float32 s Effective exposure time for nominal dark conditions inferred for GPB targets
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GPB_EFFTIME_BRIGHT float32 s Effective exposure time for nominal bright conditions inferred for GPB targets
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GPB_EFFTIME_BACKUP float32 s Effective exposure time for nominal backup conditions inferred for GPB targets
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TRANSPARENCY_GFA float64 Average airmass during this exposure as measured by GFA.
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SEEING_GFA float64 arcsec Average FWHM atmospheric seeing during this exposure as measured by GFA.
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FIBER_FRACFLUX_GFA float64 Fraction of the flux entering the fiber relative to nominal 1.1" seeing using the PSF inferred from the GFAs
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FIBER_FRACFLUX_ELG_GFA float64 Fraction of the flux entering the fiber relative to nominal 1.1" seeing using the PSF inferred from the GFAs for a source with an ELG profile (0.45" exponential galaxy profile)
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FIBER_FRACFLUX_BGS_GFA float64 Fraction of the flux entering the fiber relative to nominal 1.1" seeing using the PSF inferred from the GFAs for a source with a BGS profile (deV profile, half light radius of 1.5")
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FIBERFAC_GFA float64 Fraction of light entering a fiber relative to expectations for 1.1" seeing, transparency 1, for an object with a PSF profile, measured by comparing the flux integrated over a 107 micron diameter circle on the GFA images centered at the PlateMaker expectations for where stars should land.
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FIBERFAC_ELG_GFA float64 Same as FIBERFAC_GFA except for an ELG profile
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FIBERFAC_BGS_GFA float64 Same as FIBERFAC_GFA except for a BGS profile
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AIRMASS_GFA float64 Average airmass during this exposure as measured by GFA.
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SKY_MAG_AB_GFA float64 mag arcsec^-2 Sky background in the GFA passband, measured from the GFA backgrounds.
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SKY_MAG_G_SPEC float64 mag arcsec^-2 Sky background measured in the spectroscopy integrated over the DECam g passband, AB mags.
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SKY_MAG_R_SPEC float64 mag arcsec^-2 Sky background measured in the spectroscopy integrated over the DECam r passband, AB mags.
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SKY_MAG_Z_SPEC float64 mag arcsec^-2 Sky background measured in the spectroscopy integrated over the DECam z passband, AB mags.
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EFFTIME_GFA float64 s Effective exposure time for nominal conditions inferred from GFA data
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EFFTIME_DARK_GFA float64 s Effective exposure time for nominal dark conditions inferred from GFA data
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EFFTIME_BRIGHT_GFA float64 s Effective exposure time for nominal bright conditions inferred from GFA data
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EFFTIME_BACKUP_GFA float64 s Effective exposure time for nominal backup conditions inferred from GFA data
Copy file name to clipboardexpand all lines: py/desidatamodel/data/column_descriptions.csv
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@@ -342,6 +342,10 @@ SHAPE_E2_IVAR,float32,,Inverse variance of SHAPE_E2,Inverse variance of SHAPE_E2
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SHAPE_R,float32,arcsec,Half-light radius of galaxy model (>0),Half-light radius of galaxy model (>0)
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SHAPE_R_IVAR,float32,arcsec^-2,Inverse variance of SHAPE_R,Inverse variance of SHAPE_R
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SIGMA_MGII,float32,Angstrom,Fitted param SIGMA (linewidth) by MgII fitter,Fitted parameter SIGMA (linewidth) by MgII fitter (in angstrom?)
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SKY_MAG_AB_GFA,float64,mag arcsec^-2,Sky background in GFA passband,"Sky background in the GFA passband, measured from the GFA backgrounds."
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SKY_MAG_G_GFA,float64,mag arcsec^-2,Sky background in g passband,"Sky background measured in the spectroscopy integrated over the DECam g passband, AB mags."
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SKY_MAG_R_GFA,float64,mag arcsec^-2,Sky background in r passband,"Sky background measured in the spectroscopy integrated over the DECam r passband, AB mags."
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SKY_MAG_Z_GFA,float64,mag arcsec^-2,Sky background in z passband,"Sky background measured in the spectroscopy integrated over the DECam z passband, AB mags."
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SPECTRO,int16,,Spectrograph number [0-9],Spectrograph number [0-9]
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SPECTROID,int32,,Hardware ID of spectrograph (not used),Hardware ID of spectrograph (not used)
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SPECTYPE,char[6],,"Best-fit spectral type: GALAXY, QSO, STAR","Spectral type of Redrock best fit template (e.g. GALAXY, QSO, STAR)"
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