sframe-CAMERA-EXPID.fits

Summary:

fiber-flatfielded and sky-subtracted but not flux calibrated per-camera spectra.

Naming Convention:

sframe-{CAMERA}-{EXPID}.fits, where {CAMERA} is one of the spectrograph cameras (e.g. z1) and {EXPID} is the 8-digit exposure ID.

Regex:

sframe-[brz][0-9]-[0-9]{8}\.fits

File Type:

FITS, 70 MB

Contents

Number	EXTNAME	Type	Contents
HDU0	FLUX	IMAGE	flatfielded sky subtracted photons
HDU1	IVAR	IMAGE	Inverse variance of FLUX
HDU2	MASK	IMAGE	Bad value mask; 0=good
HDU3	WAVELENGTH	IMAGE	Wavelength grid of the extraction
HDU3	RESOLUTION	IMAGE	Resolution matrix
HDU5	FIBERMAP	BINTABLE	Fibermap
HDU6	CHI2PIX	IMAGE	chi2 of PSF fit to CCD pixels

FITS Header Units

HDU0

EXTNAME = FLUX

2D array of fiber flat-fielded and sky subtracted flux of dimension [nspec, nwave] in units of electrons per Angstrom. nspec is the number of fibers per camera. nwave in the length of the wavelength array. The spectra of all fibers share the same wavelength grid (given in HDU WAVELENGTH). sframe.flux = frame.flux / flatfield - sky .

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2326	int
NAXIS2	500	int
EXPID	69022	int	Exposure number
EXPFRAME	0	int	Frame number
TILEID	80616	int	DESI Tile ID
FIBASSGN	/data/tiles/SVN_tiles/080/fiberassign-080616.fits	str	Fiber assign fil
FLAVOR	science	str	Observation type
SEQUENCE	DESI	str	OCS Sequence name
PURPOSE	Commissioning	str	Purpose of observing night
PROGRAM	SV1 BGS+MWS tile 80616	str	Program name
PROPID	2019B-5000	str	Proposal ID
OBSERVER	DESIObserver	str	Names of observers
LEAD	RunManager	str	Lead observer
INSTRUME	DESI	str	Instrument name
OBSERVAT	KPNO	str	Observatory name
OBS-LAT	31.96403	str	[deg] Observatory latitude
OBS-LONG	-111.59989	str	[deg] Observatory east longitude
OBS-ELEV	2097.0	float	[m] Observatory elevation
TELESCOP	KPNO 4.0-m telescope	str	Telescope name
CORRCTOR	DESI Corrector	str	Corrector Identification
NIGHT	20201220	int	Observing night
TIMESYS	UTC	str	Time system used for date-obs
DATE-OBS	2020-12-21T02:36:32.099838	str	[UTC] Observation data and start time
TIME-OBS	02:39:11.845920	str	[UTC] Observation start time
MJD-OBS	59204.10870486	float	Modified Julian Date of observation
OPENSHUT	2020-12-21T02:36:32.099838	str	Time shutter opened
ST	01:10:39.210	str	Local Sidereal time at observation start (HH:MM
EXPTIME	300.007	float	[s] Actual exposure time
REQRA	356.0	float	[deg] Requested right ascension (observer input
REQDEC	29.0	float	[deg] Requested declination (observer input)
FOCUS	1426.5,-501.4,81.0,-2.6,42.3,169.2	str	Telescope focus settings
VCCD	ON	str	True (ON) if CCD voltage is on
VCCDON	2020-12-14T17:48:28.296248	str	Time when CCD voltage was turned on
VCCDSEC	550592.7	float	[s] CCD on time in seconds
TRUSTEMP	11.767	float	[deg] Average Telescope truss temperature (only
PMIRTEMP	8.925	float	[deg] Average primary mirror temperature (nit,e
EQUINOX	2000.0	float	Epoch of observation
MOUNTAZ	266.70224	float	[deg] Mount azimuth angle
MOUNTDEC	28.999221	float	[deg] Mount declination
MOUNTEL	71.039837	float	[deg] Mount elevation angle
MOUNTHA	21.769281	float	[deg] Mount hour angle
SKYDEC	28.999221	float	[deg] Telescope declination (pointing on sky)
SKYRA	355.996551	float	[deg] Telescope right ascension (pointing on sk
TARGTDEC	28.999221	float	[deg] Target declination (to TCS)
TARGTRA	355.996551	float	[deg] Target right ascension (to TCS)
USEETC	F	bool	ETC data available if true
USESKY	T	bool	DOS Control: use Sky Monitor
USEFOCUS	T	bool	DOS Control: use focus
HEXTRIM	0.0,0.0,0.0,0.0,0.0,0.0	str	Hexapod trim values
USEROTAT	T	bool	DOS Control: use rotator
ROTOFFST	167.1	float	[arcsec] Rotator offset
ROTENBLD	T	bool	Rotator enabled
ROTRATE	0.0	float	[arcsec/min] Rotator rate
USEGUIDR	T	bool	DOS Control: use guider
USEDONUT	T	bool	DOS Control: use donuts
SPECGRPH	3	int	Spectrograph logical name (SP)
SPECID	6	int	Spectrograph serial number (SM)
FEEBOX	lbnl074	str	CCD Controller serial number
VESSEL	11	int	Cryostat serial number
FEEVER	v20160312	str	CCD Controller version
FEEPOWER	ON	str	FEE power status
FEEDMASK	2134851391	int	FEE dac mask
FEECMASK	1048575	int	FEE clk mask
CCDTEMP	-140.2798	float	[deg C] CCD controller CCD temperature
RADESYS	FK5	str	Coordinate reference frame of major/minor axes
FILENAME	/exposures/desi/specs/20201220/00069022/sp1-00069022.fits.fz	str	Name
DOSVER	trunk	str	DOS software version
OCSVER	1.2	float	OCS software version
CONSTVER	DESI:CURRENT	str	Constants version
INIFILE	/data/msdos/dos_home/architectures/kpno/desi.ini	str	DOS Configuration
CRYOPRES [1]	7.233e-08	str	[mb] Cryostat pressure (IP)
CLOCK7	-2.0001,3.9999	str	[V] high rail, low rail
TRIMSECA	[8:2064, 2:2065]	str	Trim section for quadrant A
CCDNAME	CCDSM6R	str	CCD name
TRIMSECD	[2193:4249, 2130:4193]	str	Trim section for quadrant D
OFFSET2	0.4000000059604645,-8.961	str	[V] set value, measured value
CPUTEMP	56.625	float	[deg C] CCD controller CPU temperature
DAC11	-25.0003,-24.7086	str	[V] set value, measured value
AMPSECA	[1:2057, 1:2064]	str	AMP section for quadrant A
CCDCFG	M1-50_lbnl_20190719.cfg	str	CCD configuration file
TRIMSECB	[2193:4249, 2:2065]	str	Trim section for quadrant B
CLOCK3	-2.0001,3.9999	str	[V] high rail, low rail
CCDSECA	[1:2057, 1:2064]	str	CCD section for quadrant A
CLOCK4	9.9999,0.0	str	[V] high rail, low rail
DAC0	-9.0002,-8.9095	str	[V] set value, measured value
CLOCK10	9.9992,2.9993	str	[V] high rail, low rail
BIASSECA	[2065:2128, 2:2065]	str	Bias section for quadrant A
PRRSECA	[8:2064, 1:1]	str	Row prescan section for quadrant A
DAC7	6.4999,6.4856	str	[V] set value, measured value
AMPSECB	[4114:2058, 1:2064]	str	AMP section for quadrant B
DAC10	-25.0003,-24.9906	str	[V] set value, measured value
DELAYS	20, 20, 25, 30, 7, 3000, 7, 7, 7, 7	str	[10] Delay settings
CCDSECD	[2058:4114, 2065:4128]	str	CCD section for quadrant D
CASETEMP	56.4919	float	[deg C] CCD controller case temperature
CLOCK6	9.9999,0.0	str	[V] high rail, low rail
CLOCK13	9.9992,2.9993	str	[V] high rail, low rail
CLOCK9	9.9992,2.9993	str	[V] high rail, low rail
DAC8	-25.0003,-25.0202	str	[V] set value, measured value
DAC9	-25.0003,-24.6789	str	[V] set value, measured value
ORSECB	[2193:4249, 2066:2097]	str	Row overscan section for quadrant B
CLOCK1	9.9999,0.0	str	[V] high rail, low rail
DETSECC	[1:2057, 2065:4128]	str	Detector section for quadrant C
AMPSECD	[4114:2058, 4128:2065]	str	AMP section for quadrant D
CLOCK5	9.9999,0.0	str	[V] high rail, low rail
ORSECA	[8:2064, 2066:2097]	str	Row overscan section for quadrant A
DAC15	0.0,0.0297	str	[V] set value, measured value
DATASECA	[8:2064, 2:2065]	str	Data section for quadrant A
CCDPREP	purge,clear	str	CCD prep actions
OFFSET7	2.0,6.4908	str	[V] set value, measured value
DAC5	5.9998,6.028	str	[V] set value, measured value
CLOCK12	9.9992,2.9993	str	[V] high rail, low rail
CCDSECB	[2058:4114, 1:2064]	str	CCD section for quadrant B
OFFSET6	2.0,6.0332	str	[V] set value, measured value
DAC4	5.9998,6.028	str	[V] set value, measured value
PRESECC	[1:7, 2130:4193]	str	Prescan section for quadrant C
OFFSET5	2.0,6.028	str	[V] set value, measured value
DAC2	-9.0002,-8.9713	str	[V] set value, measured value
CRYOTEMP [1]	162.97	float	[deg K] Cryostat CCD temperature
PRESECB	[4250:4256, 2:2065]	str	Prescan section for quadrant B
DIGITIME	47.1031	float	[s] Time to digitize image
DAC3	-10.5005,-10.3824	str	[V] set value, measured value
CAMERA	r3	str	Camera name
DETSECB	[2058:4114, 1:2064]	str	Detector section for quadrant B
OFFSET1	0.4000000059604645,-8.8065	str	[V] set value, measured value
DATASECD	[2193:4249, 2130:4193]	str	Data section for quadrant D
SETTINGS	detectors_sm_20191211.json	str	Name of DESI CCD settings file
CLOCK11	9.9992,2.9993	str	[V] high rail, low rail
DAC13	0.0,0.0	str	[V] set value, measured value
CLOCK14	9.9992,2.9993	str	[V] high rail, low rail
CCDSECC	[1:2057, 2065:4128]	str	CCD section for quadrant C
DATASECC	[8:2064, 2130:4193]	str	Data section for quadrant C
CLOCK0	9.9999,0.0	str	[V] high rail, low rail
CLOCK15	9.9992,2.9993	str	[V] high rail, low rail
DAC12	0.0,0.0297	str	[V] set value, measured value
CCDSIZE	4194,4256	str	CCD size in pixels (rows, columns)
OFFSET0	0.4000000059604645,-8.9095	str	[V] set value, measured value
ORSECD	[2193:4249, 2098:2129]	str	Row bias section for quadrant D
DAC16	48.0,46.7082	str	[V] set value, measured value
PRRSECC	[8:2064, 4194:4194]	str	Row prescan section for quadrant C
PRRSECD	[2193:4249, 4194:4194]	str	Row prescan section for quadrant D
BIASSECB	[2129:2192, 2:2065]	str	Bias section for quadrant B
DETSECD	[2058:4114, 2065:4128]	str	Detector section for quadrant D
CLOCK18	9.0,0.9999	str	[V] high rail, low rail
DAC17	20.0008,14.274	str	[V] set value, measured value
CCDTMING	default_lbnl_timing_20180905.txt	str	CCD timing file
DETECTOR	M1-50	str	Detector (ccd) identification
PRRSECB	[2193:4249, 1:1]	str	Row prescan section for quadrant B
TRIMSECC	[8:2064, 2130:4193]	str	Trim section for quadrant C
DAC14	0.0,0.0148	str	[V] set value, measured value
BIASSECD	[2129:2192, 2130:4193]	str	Bias section for quadrant D
CDSPARMS	400, 400, 8, 2000	str	CDS parameters
OFFSET3	0.4000000059604645,-10.3721	str	[V] set value, measured value
PRESECA	[1:7, 2:2065]	str	Prescan section for quadrant A
ORSECC	[8:2064, 2098:2129]	str	Row overscan section for quadrant C
DAC6	5.9998,6.0332	str	[V] set value, measured value
PGAGAIN	3	int	Controller gain
DAC1	-9.0002,-8.8065	str	[V] set value, measured value
DATASECB	[2193:4249, 2:2065]	str	Data section for quadrant B
CLOCK2	9.9999,0.0	str	[V] high rail, low rail
CLOCK16	9.9999,3.0	str	[V] high rail, low rail
PRESECD	[4250:4256, 2130:4193]	str	Prescan section for quadrant D
OFFSET4	2.0,6.0332	str	[V] set value, measured value
CLOCK17	9.0,0.9999	str	[V] high rail, low rail
AMPSECC	[1:2057, 4128:2065]	str	AMP section for quadrant C
CLOCK8	9.9992,2.9993	str	[V] high rail, low rail
DETSECA	[1:2057, 1:2064]	str	Detector section for quadrant A
BIASSECC	[2065:2128, 2130:4193]	str	Bias section for quadrant C
BLDTIME	0.3504	float	[s] Time to build image
REQTIME	300.0	float	[s] Requested exposure time
OBSID	kp4m20201221t023911	str	Unique observation identifier
PROCTYPE	RAW	str	Data processing level
PRODTYPE	image	str	Data product type
CHECKSUM	jjGAmi92jiE8ji98	str	HDU checksum updated 2022-02-14T06:14:04
DATASUM	3075256975	str	data unit checksum updated 2022-02-14T06:14:04
GAINA	1.681	float	e/ADU (gain applied to image)
SATULEVA	28000.0	float	saturation or non lin. level, in ADU, inc. bias
OSTEPA	0.7048677125421818	float	ADUs (max-min of median overscan per row)
OMETHA	AVERAGE	str	use average overscan
OVERSCNA	1979.586454500641	float	ADUs (gain not applied)
OBSRDNA	2.618213792981265	float	electrons (gain is applied)
SATUELEA	43740.31516998442	float	saturation or non lin. level, in electrons
GAINB	1.625	float	e/ADU (gain applied to image)
SATULEVB	57000.0	float	saturation or non lin. level, in ADU, inc. bias
OSTEPB	0.6850349189899134	float	ADUs (max-min of median overscan per row)
OMETHB	AVERAGE	str	use average overscan
OVERSCNB	1997.289875350671	float	ADUs (gain not applied)
OBSRDNB	3.12518985733541	float	electrons (gain is applied)
SATUELEB	89379.40395255515	float	saturation or non lin. level, in electrons
GAINC	1.477	float	e/ADU (gain applied to image)
SATULEVC	59000.0	float	saturation or non lin. level, in ADU, inc. bias
OSTEPC	0.6403308619337622	float	ADUs (max-min of median overscan per row)
OMETHC	AVERAGE	str	use average overscan
OVERSCNC	1974.691977751432	float	ADUs (gain not applied)
OBSRDNC	2.344388520757958	float	electrons (gain is applied)
SATUELEC	84226.37994886114	float	saturation or non lin. level, in electrons
GAIND	1.492	float	e/ADU (gain applied to image)
SATULEVD	62000.0	float	saturation or non lin. level, in ADU, inc. bias
OSTEPD	0.6246898852550657	float	ADUs (max-min of median overscan per row)
OMETHD	AVERAGE	str	use average overscan
OVERSCND	1998.214476179268	float	ADUs (gain not applied)
OBSRDND	2.301320302261815	float	electrons (gain is applied)
SATUELED	89522.66400154053	float	saturation or non lin. level, in electrons
FIBERMIN	1500	int
LONGSTRN	OGIP 1.0	str	The OGIP Long String Convention may be used.
MODULE	CI	str	Image Sources/Component
COSMSPLT	F	bool	Cosmics split exposure if true
MAXSPLIT	0	int	Number of allowed exposure splits
SPLITIDS [1]	69022	str	List of expids for split exposures
OBSTYPE	SCIENCE	str	Spectrograph observation type
MANIFEST	F	bool	DOS exposure manifest
OBJECT		str	Object name
SEQNUM	1	int	Number of exposure in sequence
CAMSHUT	open	str	Shutter status during observation
ACQTIME	15.0	float	[s] acqusition image exposure time
GUIDTIME	5.0	float	[s] guider GFA exposure time
FOCSTIME [1]	60.0	float	[s] focus GFA exposure time
SKYTIME [1]	60.0	float	[s] sky camera exposure time (acquisition)
WHITESPT	F	bool	Telescope is at whitespot
ZENITH	F	bool	Telescope is at zenith
SEANNEX	F	bool	Telescope is at SE annex
BEYONDP	F	bool	Telescope is beyond pole
FIDUCIAL	off	str	Fiducials status during observation
BACKLIT	off	str	Fibers are backlit if True
AIRMASS	1.060311	float	Airmass
PMREADY	T	bool	Primary mirror ready
PMCOVER	open	str	Primary mirror cover
PMCOOL	off	str	Primary mirror cooling
DOMSHUTU	open	str	Upper dome shutter
DOMSHUTL	open	str	Lower dome shutter
DOMLIGHH	off	str	High dome lights
DOMLIGHL	off	str	Low dome lights
DOMEAZ	255.166	float	[deg] Dome azimuth angle
DOMINPOS	T	bool	Dome is in position
GUIDOFFR	-0.052283	float	[arcsec] Cummulative guider offset (RA)
GUIDOFFD	0.136634	float	[arcsec] Cummulative guider offset (dec)
MOONDEC	-8.975162	float	[deg] Moon declination at start of exposure
MOONRA	352.538429	float	[deg] Moon RA at start of exposure
INCTRL	T	bool	DESI in control
INPOS	T	bool	Mount in position
MNTOFFD	-15.76	float	[arcsec] Mount offset (dec)
MNTOFFR	29.32	float	[arcsec] Mount offset (RA)
PARALLAC	75.635085	float	[deg] Parallactic angle
TARGTAZ	267.074049	float	[deg] Target azimuth
TARGTEL	70.563787	float	[deg] Target elevation
TRGTOFFD	0.0	float	[arcsec] Telescope target offset (dec)
TRGTOFFR	0.0	float	[arcsec] Telescope target offset (RA)
ZD	19.436213	float	[deg] Telescope zenith distance
TILERA	356.0	float	RA of tile given in fiberassign file
TILEDEC	29.0	float	DEC of tile given in fiberassign file
TCSST	01:13:18.668	str	Local Sidereal time reported by TCS (HH:MM:SS)
TCSMJD	59204.110981	float	MJD reported by TCS
ACQCAM	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str	Acquisition cameras used
GUIDECAM	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str	Guide cameras used for t
FOCUSCAM [1]	FOCUS1,FOCUS4,FOCUS6,FOCUS9	str	Focus cameras used for this exposure
SKYCAM [1]	SKYCAM0,SKYCAM1	str	Sky cameras used for this exposure
REQADC	65.78,85.28	str	[deg] requested ADC angles
ADCCORR	T	bool	Correct pointing for ADC setting if True
ADC1PHI	65.780005	float	[deg] ADC 1 angle
ADC2PHI	85.279991	float	[deg] ADC 2 angle
ADC1HOME	F	bool	ADC 1 at home position if True
ADC2HOME	F	bool	ADC 2 at home position if True
ADC1NREV	-1.0	float	ADC 1 number of revs
ADC2NREV	0.0	float	ADC 2 number of revs
ADC1STAT	STOPPED	str	ADC 1 status
ADC2STAT	STOPPED	str	ADC 2 status
HEXPOS	1426.5,-501.3,81.0,-2.6,42.3,171.9	str	Hexapod position
RESETROT	F	bool	DOS Control: reset hex rotator
USEPOS	T	bool	Fiber positioner data available if true
PETALS	PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9	str	Participating petals
POSCYCLE	1	int	Number of current iteration
POSONTGT	3626	int	Number of positioners on target
POSONFRC	0.8613	float	Fraction of positioners on target
POSDISAB	37	int	Number of disabled positioners
POSENABL	4210	int	Number of enabled positioners
POSRMS	0.0171	float	[micron] RMS of positioner accuracy
POSITER	1	int	Positioning Control: max. number of pos. cycles
POSFRACT	0.95	float
POSTOLER	0.01	float	Positioning Control: in_position tolerance (mm)
POSMVALL	T	bool	Positioning Control: move all positioners
GUIDMODE	catalog	str	Guider mode
USEAOS [1]	F	bool	DOS Control: AOS data available if true
USESPCTR	T	bool	DOS Control: use spectrographs
SPCGRPHS	SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9	str	Participating spectrograph
ILLSPECS [1]	SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9	str	Participating illuminate s
CCDSPECS [1]	SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9	str	Participating ccd spectrog
TDEWPNT	-16.043	float	Telescope air dew point
TAIRFLOW	0.0	float	Telescope air flow
TAIRITMP	11.8	float	[deg] Telescope air in temperature
TAIROTMP	11.7	float	[deg] Telescope air out temperature
TAIRTEMP	10.65	float	[deg] Telescope air temperature
TCASITMP	0.0	float	[deg] Telescope Cass Cage in temperature
TCASOTMP	10.8	float	[deg] Telescope Cass Cage out temperature
TCSITEMP	9.3	float	[deg] Telescope center section in temperature
TCSOTEMP	10.8	float	[deg] Telescope center section out temperature
TCIBTEMP	0.0	float	[deg] Telescope chimney IB temperature
TCIMTEMP	0.0	float	[deg] Telescope chimney IM temperature
TCITTEMP	0.0	float	[deg] Telescope chimney IT temperature
TCOSTEMP	0.0	float	[deg] Telescope chimney OS temperature
TCOWTEMP	0.0	float	[deg] Telescope chimney OW temperature
TDBTEMP	9.3	float	[deg] Telescope dec bore temperature
TFLOWIN	0.0	float	Telescope flow rate in
TFLOWOUT	0.0	float	Telescope flow rate out
TGLYCOLI	9.9	float	[deg] Telescope glycol in temperature
TGLYCOLO	9.8	float	[deg] Telescope glycol out temperature
THINGES	11.4	float	[deg] Telescope hinge S temperature
THINGEW	11.2	float	[deg] Telescope hinge W temperature
TPMAVERT	8.931	float	[deg] Telescope mirror averagetemperature
TPMDESIT	7.0	float	[deg] Telescope mirror desired temperature
TPMEIBT	8.6	float	[deg] Telescope mirror EIB temperature
TPMEITT	8.6	float	[deg] Telescope mirror EIT temperature
TPMEOBT	8.5	float	[deg] Telescope mirror EOB temperature
TPMEOTT	9.0	float	[deg] Telescope mirror EOT temperature
TPMNIBT	8.4	float	[deg] Telescope mirror NIB temperature
TPMNITT	8.9	float	[deg] Telescope mirror NIT temperature
TPMNOBT	8.8	float	[deg] Telescope mirror NOB temperature
TPMNOTT	9.1	float	[deg] Telescope mirror NOT temperature
TPMRTDT	9.0	float	[deg] Telescope mirror RTD temperature
TPMSIBT	8.6	float	[deg] Telescope mirror SIB temperature
TPMSITT	8.8	float	[deg] Telescope mirror SIT temperature
TPMSOBT	8.2	float	[deg] Telescope mirror SOB temperature
TPMSOTT	8.9	float	[deg] Telescope mirror SOT temperature
TPMSTAT	ready	str	Telescope mirror status
TPMWIBT	8.2	float	[deg] Telescope mirror WIB temperature
TPMWITT	9.1	float	[deg] Telescope mirror WIT temperature
TPMWOBT	8.3	float	[deg] Telescope mirror WOB temperature
TPMWOTT	8.9	float	[deg] Telescope mirror WOT temperature
TPCITEMP	8.5	float	[deg] Telescope primary cell in temperature
TPCOTEMP	8.6	float	[deg] Telescope primary cell out temperature
TPR1HUM	0.0	float	Telescope probe 1 humidity
TPR1TEMP	0.0	float	[deg] Telescope probe1 temperature
TPR2HUM	0.0	float	Telescope probe 2 humidity
TPR2TEMP	0.0	float	[deg] Telescope probe2 temperature
TSERVO	40.0	float	Telescope servo setpoint
TTRSTEMP	11.4	float	[deg] Telescope top ring S temperature
TTRWTEMP	11.0	float	[deg] Telescope top ring W temperature
TTRUETBT	-4.2	float	[deg] Telescope truss ETB temperature
TTRUETTT	11.2	float	[deg] Telescope truss ETT temperature
TTRUNTBT	10.9	float	[deg] Telescope truss NTB temperature
TTRUNTTT	11.2	float	[deg] Telescope truss NTT temperature
TTRUSTBT	10.7	float	[deg] Telescope truss STB temperature
TTRUSTST	10.8	float	[deg] Telescope truss STS temperature
TTRUSTTT	11.1	float	[deg] Telescope truss STT temperature
TTRUTSBT	11.8	float	[deg] Telescope truss TSB temperature
TTRUTSMT	11.8	float	[deg] Telescope truss TSM temperature
TTRUTSTT	11.8	float	[deg] Telescope truss TST temperature
TTRUWTBT	10.5	float	[deg] Telescope truss WTB temperature
TTRUWTTT	10.9	float	[deg] Telescope truss WTT temperature
ALARM	F	bool	UPS major alarm or check battery
ALARM-ON	F	bool	UPS active alarm condition
BATTERY	100.0	float	[%] UPS Battery left
SECLEFT	5178.0	float	[s] UPS Seconds left
UPSSTAT	System Normal - On Line(7)	str	UPS Status
INAMPS	70.4	float	[A] UPS total input current
OUTWATTS	5000.0,7200.0,4800.0	str	[W] UPS Phase A, B, C output watts
COMPDEW	-12.9	float	[deg C] Computer room dewpoint
COMPHUM	7.4	float	[%] Computer room humidity
COMPAMB	19.5	float	[deg C] Computer room ambient temperature
COMPTEMP	24.5	float	[deg C] Computer room hygrometer temperature
DEWPOINT	11.5	float	[deg C] (outside) dewpoint
HUMIDITY	10.0	float	[%] (outside) humidity
PRESSURE	795.0	float	[torr] (outside) air pressure
OUTTEMP	0.0	float	[deg C] outside temperature
WINDDIR	55.0	float	[deg] wind direction
WINDSPD	27.3	float	[m/s] wind speed
GUST	20.6	float	[m/s] Wind gusts speed
AMNIENTN	13.5	float	[deg C] ambient temperature north
CFLOOR	8.9	float	[deg C] temperature on C floor
NWALLIN	13.9	float	[deg C] temperature at north wall inside
NWALLOUT	9.6	float	[deg C] temperature at north wall outside
WWALLIN	12.9	float	[deg C] temperature at west wall inside
WWALLOUT	10.6	float	[deg C] temperature at west wall outside
AMBIENTS	14.8	float	[deg C] ambient temperature south
FLOOR	12.6	float	[deg C] temperature at floor (LCR)
EWALLCMP	10.8	float	[deg C] temperature at east wall, computer room
EWALLCOU	10.6	float	[deg C] temperature at east wall, Coude room
ROOF	10.3	float	[deg C] temperature on roof
ROOFAMB	10.6	float	[deg C] ambient temperature on roof
DOMEBLOW	10.4	float	[deg C] temperature at dome back, lower
DOMEBUP	10.7	float	[deg C] temperature at dome back, upper
DOMELLOW	10.8	float	[deg C] temperature at dome left, lower
DOMELUP	10.8	float	[deg C] temperature at dome left, upper
DOMERLOW	10.6	float	[deg C] temperature at dome right, lower
DOMERUP	10.5	float	[deg C] temperature at dome right, upper
PLATFORM	10.4	float	[deg C] temperature at platform
SHACKC	14.4	float	[deg C] temperature at shack ceiling
SHACKW	13.7	float	[deg C] temperature at shack wall
STAIRSL	10.5	float	[deg C] temperature at stairs, lower
STAIRSM	10.4	float	[deg C] temperature at stairs, mid
STAIRSU	10.6	float	[deg C] temperature at stairs, upper
TELBASE	9.6	float	[deg C] temperature at telescope base
UTILWALL	11.1	float	[deg C] temperature at utility room wall
UTILROOM	10.9	float	[deg C] temperature in utilitiy room
TNFSPROC [1]	8.1963	float	[s] PlateMaker NFSPROC processing time
TGFAPROC [1]	7.9212	float	[s] PlateMaker GFAPROC processing time
SIMGFAP	F	bool	DOS Control: simulate GFAPROC
USEFVC	T	bool	DOS Control: use fvc
USEFID	T	bool	DOS Control: use fiducials
USEILLUM	T	bool	DOS Control: use illuminator
USEXSRVR	T	bool	DOS Control: use exposure server
USEOPENL	T	bool	DOS Control: use open loop move
STOPGUDR	T	bool	DOS Control: stop guider
STOPFOCS	T	bool	DOS Control: stop focus
STOPSKY	T	bool	DOS Control: stop sky monitor
KEEPGUDR	F	bool	DOS Control: keep guider running
KEEPFOCS	F	bool	DOS Control: keep focus running
KEEPSKY	F	bool	DOS Control: keep sky mon. running
REACQUIR	F	bool	DOS Control: reacquire same files
EXCLUDED		str	Components excluded from this exposure
FVCTIME [1]	2.0	float	[s] FVC exposure time
SIMGFACQ	F	bool
POSCNVGD [1]	F	bool	Number of positioners converged
GUIEXPID	69022	int	Guider exposure id at start of spectro exp.
IGFRMNUM	12	int	Guider frame number at start of spectro exp.
FOCEXPID	69022	int	Focus exposure id at start of spectro exp.
IFFRMNUM	1	int	Focus frame number at start of spectro exp.
SKYEXPID	69022	int	Sky exposure id at start of spectro exp.
ISFRMNUM	1	int	Sky frame number at start of spectro exp.
FGFRMNUM	46	int	Guider frame number at end of spectro exp.
FFFRMNUM	6	int	Focus frame number at end of spectro exp.
FSFRMNUM	5	int	Sky frame number at end of spectro exp.
HELIOCOR	0.9999115198216216	float
NSPEC	500	int	Number of spectra
WAVEMIN	5760.0	float	First wavelength [Angstroms]
WAVEMAX	7620.0	float	Last wavelength [Angstroms]
WAVESTEP	0.8	float	Wavelength step size [Angstroms]
SPECTER	0.10.0	str	https://github.com/desihub/specter
IN_PSF	SPECPROD/exposures/20201220/00069022/psf-r3-00069022.fits	str	Input sp
IN_IMG	SPECPROD/preproc/20201220/00069022/preproc-r3-00069022.fits	str
ORIG_PSF	SPECPROD/calibnight/20201220/psfnight-r3-20201220.fits	str
BUNIT	electron/Angstrom	str
IN_SKY	SPECPROD/exposures/20201220/00069022/sky-r3-00069022.fits	str
FIBERFLT	SPECPROD/exposures/20201220/00069022/fiberflatexp-r3-00069022.fits	str
SP6BLUP [1]	7.899e-08	float	[mb] SP6 blue pressure
TCSMFDEC [1]	1	int	TCS moving filter length (dec)
SLEWANGL [1]	15.646	float	[deg] Slew Angle
SEQTOT [1]	2	int	Total number of exposures in sequence
MOONSEP [1]	111.881	float	[deg] Moon Separation
SP5REDP [1]	9.742e-08	float	[mb] SP5 red pressure
SEQSTART [1]	2021-05-08T10:26:00.785886	str	Start time of sequence processing
CONVERGD [1]	F	bool	Positioning loop converged (CNFRC>0.95)
SP9NIRP [1]	5.455e-08	float	[mb] SP9 NIR pressure
SP3REDP [1]	5.899e-08	float	[mb] SP3 red pressure
SP1BLUT [1]	162.97	float	[K] SP1 blue temperature
SP0BLUT [1]	162.97	float	[K] SP0 blue temperature
SP8REDT [1]	139.99	float	[K] SP8 red temperature
SP3BLUP [1]	7.952e-08	float	[mb] SP3 blue pressure
SP9REDT [1]	139.99	float	[K] SP9 red temperature
SP4NIRP [1]	7.251e-08	float	[mb] SP4 NIR pressure
SP4REDP [1]	5.049e-08	float	[mb] SP4 red pressure
PMSEEING [1]	0.93	float	[arcsec] PlateMaker GFAPROC seeing
SP1NIRP [1]	6.18e-08	float	[mb] SP1 NIR pressure
SP2REDT [1]	139.99	float	[K] SP2 red temperature
SP5REDT [1]	140.06	float	[K] SP5 red temperature
SP4NIRT [1]	139.99	float	[K] SP4 NIR temperature
SP7BLUT [1]	162.99	float	[K] SP7 blue temperature
USESPLIT [1]	T	bool	Exposure splits are allowed
SP1BLUP [1]	7.999e-08	float	[mb] SP1 blue pressure
SP1NIRT [1]	139.96	float	[K] SP1 NIR temperature
SP1REDT [1]	139.99	float	[K] SP1 red temperature
SP8REDP [1]	3.96e-08	float	[mb] SP8 red pressure
SP5BLUT [1]	163.02	float	[K] SP5 blue temperature
TCSGRA [1]	0.3	float	TCS simple gain (RA)
SUNDEC [1]	17.206123	float	[deg] Sun declination at start of exposure
SP7NIRP [1]	4.416e-08	float	[mb] SP7 NIR pressure
PMTRANS [1]	95.5	float	[%] PlateMaker GFAPROC transparency
SP0NIRT [1]	139.99	float	[K] SP0 NIR temperature
SP5NIRP [1]	6.573e-08	float	[mb] SP5 NIR pressure
POSCVFRC [1]	0.3845	float	Fraction of converged positioners
SP7BLUP [1]	1.04e-07	float	[mb] SP7 blue pressure
NTSSURVY [1]	na	Unknown	NTS survey name
SP7REDT [1]	139.99	float	[K] SP7 red temperature
SP2REDP [1]	6.15e-08	float	[mb] SP2 red pressure
SP4REDT [1]	140.06	float	[K] SP4 red temperature
SP6BLUT [1]	162.97	float	[K] SP6 blue temperature
SP7REDP [1]	3.404e-08	float	[mb] SP7 red pressure
SP8NIRP [1]	4.941e-08	float	[mb] SP8 NIR pressure
SP9REDP [1]	5.113e-08	float	[mb] SP9 red pressure
SP8NIRT [1]	139.99	float	[K] SP8 NIR temperature
TCSKRA [1]	0.3 0.003 0.00003	str	TCS Kalman (RA)
TCSMFRA [1]	1	int	TCS moving filter length (RA)
SP0BLUP [1]	7.565e-08	float	[mb] SP0 blue pressure
SP3NIRP [1]	4.105e-08	float	[mb] SP3 NIR pressure
SP1REDP [1]	7.239e-08	float	[mb] SP1 red pressure
SP4BLUP [1]	6.689e-08	float	[mb] SP4 blue pressure
SP3NIRT [1]	140.01	float	[K] SP3 NIR temperature
SP8BLUP [1]	8.311e-08	float	[mb] SP8 blue pressure
SP0REDT [1]	139.99	float	[K] SP0 red temperature
SEQID [1]	2 requests	str	Exposure sequence identifier
SP2BLUP [1]	8.297e-08	float	[mb] SP2 blue pressure
SP2BLUT [1]	163.02	float	[K] SP2 blue temperature
FRAMES [1]	47	int	Number of Frames in Archive
SP2NIRP [1]	4.884e-08	float	[mb] SP2 NIR pressure
SP9BLUP [1]	1.237e-07	float	[mb] SP9 blue pressure
TCSGDEC [1]	0.3	float	TCS simple gain (dec)
SP8BLUT [1]	162.97	float	[K] SP8 blue temperature
SP9BLUT [1]	162.97	float	[K] SP9 blue temperature
SP4BLUT [1]	162.97	float	[K] SP4 blue temperature
TCSPIDEC [1]	1.0,0.0,0.0,0.0	str	TCS PI settings (P, I (gain, error window, satu
SP3REDT [1]	139.99	float	[K] SP3 red temperature
SP6NIRT [1]	139.99	float	[K] SP6 NIR temperature
SP6REDT [1]	139.99	float	[K] SP6 red temperature
SP5NIRT [1]	140.08	float	[K] SP5 NIR temperature
TCSKDEC [1]	0.3 0.003 0.00003	str	TCS Kalman (dec)
SP0NIRP [1]	7.886e-08	float	[mb] SP0 NIR pressure
VISITIDS [1]	87615	str	List of expids for a visit (same tile)
SP0REDP [1]	4.265e-08	float	[mb] SP0 red pressure
SUNRA [1]	45.595565	float	[deg] Sun RA at start of exposure
SP5BLUP [1]	1.153e-07	float	[mb] SP5 blue pressure
SKYLEVEL [1]	0.83	float	counts?] ETC sky level
SP2NIRT [1]	139.99	float	[K] SP2 NIR temperature
SP6REDP [1]	6.491e-08	float	[mb] SP6 red pressure
TCSPIRA [1]	1.0,0.0,0.0,0.0	str	TCS PI settings (P, I (gain, error window, satu
SP7NIRT [1]	139.99	float	[K] SP7 NIR temperature
SP9NIRT [1]	139.99	float	[K] SP9 NIR temperature
SPLITEXP [1]	F	bool	Split exposure part of a visit
SP6NIRP [1]	2.807e-07	float	[mb] SP6 NIR pressure
SP3BLUT [1]	162.99	float	[K] SP3 blue temperature
SBPROF [1]	ELG	str	Profile used by ETC
TOTTEFF [1]	1406.4226	float	[s] Total effective exposure time for visit
REQTEFF [1]	1400.0	int	[s] Requested effective exposure time
ACTTEFF [1]	1406.4226	float	[s] Actual effective exposure time
BBKGMINB [1]	-0.5249611468569187	float
BBKGMAXA [1]	1.179777031725897	float
BBKGMIND [1]	-0.5599583904094981	float
BBKGMINA [1]	-0.9489741260224904	float
BBKGMAXD [1]	0.2726660093392476	float
BBKGMAXB [1]	0.6927871978458614	float
SEEING [1]	1.291	float	[arcsec] ETC seeing
BBKGMAXC [1]	1.270526827094756	float
BBKGMINC [1]	-0.8627791108943093	float
USESPLITS [1]	T	bool	Exposure splits are allowed
ETCTHRUB [1]	0.575924	float	ETC averaged thruput (BGS profile)
ACQFWHM [1]	1.469225	float	[arcsec] FWHM of guide star PSF in acquisition
ESTTIME [1]	1374.714	float	[s] Estimated exposure time for visit (from ETC
ETCSPLIT [1]	1	int	ETC split sequence number for this visit
ETCFRACE [1]	0.302117	float	ETC transparency weighted average of FFRAC (ELG
ETCFRACP [1]	0.392042	float	ETC transparency weighted average of FFRAC (PSF
ETCTHRUP [1]	0.556996	float	ETC averaged thruput (PSF profile)
ETCPREV [1]	0.0	float	[s] ETC cummulative t_eff for visit
ETCTHRUE [1]	0.585204	float	ETC averaged thruput (ELG profile)
ETCREAL [1]	1120.375	float	[s] ETC real open shutter time
TRANSPAR [1]	None	Unknown	ETC/PM transparency
PMTRANSP [1]	101.86	float	[%] PlateMaker GFAPROC transparency
ETCPROF [1]	BGS	str	ETC source brightness profile
ETCVERS [1]	0.1.12-3-g12b54bb	str	ETC version
ETCFRACB [1]	0.136941	float	ETC transparency weighted average of FFRAC (BGS
ETCSKY [1]	2.674912	float	ETC averaged, normalized sky camera flux
NTSPROG [1]	BRIGHT	str	NTS program name
ETCTRANS [1]	0.798438	float	ETC averaged TRANSP normalized to 1
ETCTEFF [1]	223.989487	float	[s] ETC effective exposure time
ETCSEENG [1]	1.4692	float	[arcsec] ETC seeing
MAXTIME [1]	5400.0	float	[s] Maximum exposure time for entire visit (fro
MINTIME [1]	120.0	float	[s] Minimum exposure time (from NTS, used by ET

Data: FITS image [float32, 2326x500]

HDU1

EXTNAME = IVAR

Inverse variance of the flux in HDU0. The unit is 1/(electrons/Angstrom)^2. The noise from neighboring spectral pixels is uncorrelated.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2326	int	Number of wavelengths
NAXIS2	500	int	Number of spectra
CHECKSUM	9UJ3CTG29TG2ATG2	str	HDU checksum updated 2021-07-08T15:52:36
DATASUM	3074959512	str	data unit checksum updated 2021-07-08T15:52:36

Data: FITS image [float32, 2326x500]

HDU2

EXTNAME = MASK

Mask of spectral data; 0=good. See the bitmask documentation page for the definition of the bits. Prior to desispec/0.24.0 and software release 18.9, the MASK HDU was compressed.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2326	int	Number of wavelengths
NAXIS2	500	int	Number of spectra
BSCALE	1	int
BZERO	2147483648	int
CHECKSUM	ZGp6dDn5ZDn5bDn5	str	HDU checksum updated 2021-07-08T15:52:36
DATASUM	47035306	str	data unit checksum updated 2021-07-08T15:52:36

Data: FITS image [int32, 2326x500]

HDU3

EXTNAME = WAVELENGTH

1D array of wavelengths. See the frame WAVELENGTH documentation for more details.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2326	int	Number of wavelengths
BUNIT	Angstrom	str
CHECKSUM	9MZDCMZA9MZAAMZA	str	HDU checksum updated 2021-07-08T15:52:37
DATASUM	456732359	str	data unit checksum updated 2021-07-08T15:52:37

Data: FITS image [float64, 2326]

HDU4

EXTNAME = RESOLUTION

Resolution matrix stored as a 3D sparse matrix. the frame RESOLUTION documentation for more details.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2326	int
NAXIS2	11	int
NAXIS3	500	int
CHECKSUM	LiPqNgMnLgMnLgMn	str	HDU checksum updated 2021-07-08T15:52:39
DATASUM	2191513558	str	data unit checksum updated 2021-07-08T15:52:39

Data: FITS image [float32, 2326x11x500]

HDU5

EXTNAME = FIBERMAP

Fibermap information combining fiberassign request with actual fiber locations. See also the fibermap documentation page.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	385	int	length of dimension 1
NAXIS2	500	int	length of dimension 2
TILEID	80616	int
TILERA	356.0	float
TILEDEC	29.0	float
FIELDROT	-0.00962199210064233	float
FA_PLAN	2022-07-01T00:00:00.000	str
FA_HA	0.0	float
FA_RUN	2020-03-06T00:00:00	str
FA_M_GFA [1]	0.4	float
FA_M_PET [1]	0.4	float
FA_M_POS [1]	0.05	float
REQRA	356.0	float
REQDEC	29.0	float
FIELDNUM	0	int
FA_VER	2.0.0.dev2618	str
FA_SURV	sv1	str
LONGSTRN	OGIP 1.0	str
GFA	/data/target/catalogs/dr9/0.47.0/gfas	str
SKY	/data/target/catalogs/dr9/0.47.0/skies	str
SKYSUPP	/data/target/catalogs/gaiadr2/0.47.0/skies-supp	str
TARG	/data/target/catalogs/dr9/0.47.0/targets/sv1/resolve/bright/	str
FAFLAVOR	sv1bgsmws	str
FAOUTDIR	/software/datasystems/users/raichoor/fiberassign-test/desi-sv1-20201218/	str
PMTIME [1]	2020-12-18T00:00:00.000	str
RUNDATE	2020-03-06T00:00:00	str
SCTARG [1]	STD_WD,BGS_ANY,MWS_ANY	str
OBSCON	DARK|GRAY|BRIGHT	str
MODULE	CI	str
EXPID	69022	int
EXPFRAME	0	int
COSMSPLT	F	bool
MAXSPLIT	0	int
SPLITIDS [1]	69022	str
FIBASSGN	/data/tiles/SVN_tiles/080/fiberassign-080616.fits	str
FLAVOR	science	str
OBSTYPE	SCIENCE	str
SEQUENCE	DESI	str
MANIFEST	F	bool
OBJECT		str
PURPOSE	Commissioning	str
PROGRAM	SV1 BGS+MWS tile 80616	str
PROPID	2019B-5000	str
OBSERVER	DESIObserver	str
LEAD	RunManager	str
INSTRUME	DESI	str
OBSERVAT	KPNO	str
OBS-LAT	31.96403	str
OBS-LONG	-111.59989	str
OBS-ELEV	2097.0	float
TELESCOP	KPNO 4.0-m telescope	str
CORRCTOR	DESI Corrector	str
SEQNUM	1	int
NIGHT	20201220	int
TIMESYS	UTC	str
DATE-OBS	2020-12-21T02:36:32.099838	str
MJD-OBS	59204.10870486	float
OPENSHUT	2020-12-21T02:36:32.099838	str
CAMSHUT	open	str
ST	01:10:39.210	str
ACQTIME	15.0	float
GUIDTIME	5.0	float
FOCSTIME	60.0	float
SKYTIME	60.0	float
WHITESPT	F	bool
ZENITH	F	bool
SEANNEX	F	bool
BEYONDP	F	bool
FIDUCIAL	off	str
BACKLIT	off	str
AIRMASS	1.060311	float
FOCUS	1426.5,-501.4,81.0,-2.6,42.3,169.2	str
VCCD	ON	str
TRUSTEMP	11.767	float
PMIRTEMP	8.925	float
PMREADY	T	bool
PMCOVER	open	str
PMCOOL	off	str
DOMSHUTU	open	str
DOMSHUTL	open	str
DOMLIGHH	off	str
DOMLIGHL	off	str
DOMEAZ	255.166	float
DOMINPOS	T	bool
EQUINOX	2000.0	float
GUIDOFFR	-0.052283	float
GUIDOFFD	0.136634	float
MOONDEC	-8.975162	float
MOONRA	352.538429	float
MOUNTAZ	266.70224	float
MOUNTDEC	28.999221	float
MOUNTEL	71.039837	float
MOUNTHA	21.769281	float
INCTRL	T	bool
INPOS	T	bool
MNTOFFD	-15.76	float
MNTOFFR	29.32	float
PARALLAC	75.635085	float
SKYDEC	28.999221	float
SKYRA	355.996551	float
TARGTDEC	28.999221	float
TARGTRA	355.996551	float
TARGTAZ	267.074049	float
TARGTEL	70.563787	float
TRGTOFFD	0.0	float
TRGTOFFR	0.0	float
ZD	19.436213	float
TCSST	01:13:18.668	str
TCSMJD	59204.110981	float
USEETC	F	bool
ACQCAM	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str
GUIDECAM	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str
FOCUSCAM	FOCUS1,FOCUS4,FOCUS6,FOCUS9	str
SKYCAM	SKYCAM0,SKYCAM1	str
REQADC	65.78,85.28	str
ADCCORR	T	bool
ADC1PHI	65.780005	float
ADC2PHI	85.279991	float
ADC1HOME	F	bool
ADC2HOME	F	bool
ADC1NREV	-1.0	float
ADC2NREV	0.0	float
ADC1STAT	STOPPED	str
ADC2STAT	STOPPED	str
USESKY	T	bool
USEFOCUS	T	bool
HEXPOS	1426.5,-501.3,81.0,-2.6,42.3,171.9	str
HEXTRIM	0.0,0.0,0.0,0.0,0.0,0.0	str
USEROTAT	T	bool
ROTOFFST	167.1	float
ROTENBLD	T	bool
ROTRATE	0.0	float
RESETROT	F	bool
USEPOS	T	bool
PETALS	PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9	str
POSCYCLE	1	int
POSONTGT	3626	int
POSONFRC	0.8613	float
POSDISAB	37	int
POSENABL	4210	int
POSRMS	0.0171	float
POSITER	1	int
POSFRACT	0.95	float
POSTOLER	0.01	float
POSMVALL	T	bool
USEGUIDR	T	bool
GUIDMODE	catalog	str
USEAOS [1]	F	bool
USEDONUT	T	bool
USESPCTR	T	bool
SPCGRPHS	SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9	str
ILLSPECS [1]	SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9	str
CCDSPECS [1]	SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9	str
TDEWPNT	-16.043	float
TAIRFLOW	0.0	float
TAIRITMP	11.8	float
TAIROTMP	11.7	float
TAIRTEMP	10.65	float
TCASITMP	0.0	float
TCASOTMP	10.8	float
TCSITEMP	9.3	float
TCSOTEMP	10.8	float
TCIBTEMP	0.0	float
TCIMTEMP	0.0	float
TCITTEMP	0.0	float
TCOSTEMP	0.0	float
TCOWTEMP	0.0	float
TDBTEMP	9.3	float
TFLOWIN	0.0	float
TFLOWOUT	0.0	float
TGLYCOLI	9.9	float
TGLYCOLO	9.8	float
THINGES	11.4	float
THINGEW	11.2	float
TPMAVERT	8.931	float
TPMDESIT	7.0	float
TPMEIBT	8.6	float
TPMEITT	8.6	float
TPMEOBT	8.5	float
TPMEOTT	9.0	float
TPMNIBT	8.4	float
TPMNITT	8.9	float
TPMNOBT	8.8	float
TPMNOTT	9.1	float
TPMRTDT	9.0	float
TPMSIBT	8.6	float
TPMSITT	8.8	float
TPMSOBT	8.2	float
TPMSOTT	8.9	float
TPMSTAT	ready	str
TPMWIBT	8.2	float
TPMWITT	9.1	float
TPMWOBT	8.3	float
TPMWOTT	8.9	float
TPCITEMP	8.5	float
TPCOTEMP	8.6	float
TPR1HUM	0.0	float
TPR1TEMP	0.0	float
TPR2HUM	0.0	float
TPR2TEMP	0.0	float
TSERVO	40.0	float
TTRSTEMP	11.4	float
TTRWTEMP	11.0	float
TTRUETBT	-4.2	float
TTRUETTT	11.2	float
TTRUNTBT	10.9	float
TTRUNTTT	11.2	float
TTRUSTBT	10.7	float
TTRUSTST	10.8	float
TTRUSTTT	11.1	float
TTRUTSBT	11.8	float
TTRUTSMT	11.8	float
TTRUTSTT	11.8	float
TTRUWTBT	10.5	float
TTRUWTTT	10.9	float
ALARM	F	bool
ALARM-ON	F	bool
BATTERY	100.0	float
SECLEFT	5178.0	float
UPSSTAT	System Normal - On Line(7)	str
INAMPS	70.4	float
OUTWATTS	5000.0,7200.0,4800.0	str
COMPDEW	-12.9	float
COMPHUM	7.4	float
COMPAMB	19.5	float
COMPTEMP	24.5	float
DEWPOINT	11.5	float
HUMIDITY	10.0	float
PRESSURE	795.0	float
OUTTEMP	0.0	float
WINDDIR	55.0	float
WINDSPD	27.3	float
GUST	20.6	float
AMNIENTN	13.5	float
CFLOOR	8.9	float
NWALLIN	13.9	float
NWALLOUT	9.6	float
WWALLIN	12.9	float
WWALLOUT	10.6	float
AMBIENTS	14.8	float
FLOOR	12.6	float
EWALLCMP	10.8	float
EWALLCOU	10.6	float
ROOF	10.3	float
ROOFAMB	10.6	float
DOMEBLOW	10.4	float
DOMEBUP	10.7	float
DOMELLOW	10.8	float
DOMELUP	10.8	float
DOMERLOW	10.6	float
DOMERUP	10.5	float
PLATFORM	10.4	float
SHACKC	14.4	float
SHACKW	13.7	float
STAIRSL	10.5	float
STAIRSM	10.4	float
STAIRSU	10.6	float
TELBASE	9.6	float
UTILWALL	11.1	float
UTILROOM	10.9	float
RADESYS	FK5	str
TNFSPROC	8.1963	float
TGFAPROC [1]	7.9212	float
SIMGFAP	F	bool
USEFVC	T	bool
USEFID	T	bool
USEILLUM	T	bool
USEXSRVR	T	bool
USEOPENL	T	bool
STOPGUDR	T	bool
STOPFOCS	T	bool
STOPSKY	T	bool
KEEPGUDR	F	bool
KEEPFOCS	F	bool
KEEPSKY	F	bool
REACQUIR	F	bool
FILENAME	/exposures/desi/20201220/00069022/desi-00069022.fits.fz	str
EXCLUDED		str
DOSVER	trunk	str
OCSVER	1.2	float
CONSTVER	DESI:CURRENT	str
INIFILE	/data/msdos/dos_home/architectures/kpno/desi.ini	str
REQTIME	300.0	float
FVCTIME [1]	2.0	float
SIMGFACQ	F	bool
POSCNVGD [1]	F	bool
GUIEXPID	69022	int
IGFRMNUM	12	int
FOCEXPID	69022	int
IFFRMNUM	1	int
SKYEXPID	69022	int
ISFRMNUM	1	int
FGFRMNUM	46	int
FFFRMNUM	6	int
FSFRMNUM	5	int
FRAMES [1]	47	int
DELTARA [1]	None	Unknown
DELTADEC [1]	None	Unknown
GSGUIDE0 [1]	(980.05,685.98),(878.97,731.68)	str
GSGUIDE2 [1]	(372.65,939.43),(784.50,1529.96)	str
GSGUIDE3 [1]	(365.22,1423.83),(249.12,411.52)	str
GSGUIDE5 [1]	(848.52,78.26),(516.16,1410.54)	str
GSGUIDE7 [1]	(540.95,1848.95),(504.68,831.62)	str
GSGUIDE8 [1]	(720.29,552.69),(499.80,465.13)	str
ARCHIVE [1]	/exposures/desi/20201220/00069022/guide-00069022.fits.fz	str
GUIDEFIL	guide-00069022.fits.fz	str
COORDFIL	coordinates-00069022.fits	str
TIME-OBS	02:39:11.845920	str
EXPTIME	300.007	float
VCCDON	2020-12-14T17:48:28.296248	str
VCCDSEC	550592.7	float
SPECGRPH	3	int
SPECID	6	int
FEEBOX	lbnl074	str
VESSEL	11	int
FEEVER	v20160312	str
FEEPOWER	ON	str
FEEDMASK	2134851391	int
FEECMASK	1048575	int
CCDTEMP	-140.2798	float
CRYOPRES [1]	7.233e-08	str
CLOCK7	-2.0001,3.9999	str
TRIMSECA	[8:2064, 2:2065]	str
CCDNAME	CCDSM6R	str
TRIMSECD	[2193:4249, 2130:4193]	str
OFFSET2	0.4000000059604645,-8.961	str
CPUTEMP	56.625	float
DAC11	-25.0003,-24.7086	str
AMPSECA	[1:2057, 1:2064]	str
CCDCFG	M1-50_lbnl_20190719.cfg	str
TRIMSECB	[2193:4249, 2:2065]	str
CLOCK3	-2.0001,3.9999	str
CCDSECA	[1:2057, 1:2064]	str
CLOCK4	9.9999,0.0	str
DAC0	-9.0002,-8.9095	str
CLOCK10	9.9992,2.9993	str
BIASSECA	[2065:2128, 2:2065]	str
PRRSECA	[8:2064, 1:1]	str
DAC7	6.4999,6.4856	str
AMPSECB	[4114:2058, 1:2064]	str
DAC10	-25.0003,-24.9906	str
DELAYS	20, 20, 25, 30, 7, 3000, 7, 7, 7, 7	str
CCDSECD	[2058:4114, 2065:4128]	str
CASETEMP	56.4919	float
CLOCK6	9.9999,0.0	str
CLOCK13	9.9992,2.9993	str
CLOCK9	9.9992,2.9993	str
DAC8	-25.0003,-25.0202	str
DAC9	-25.0003,-24.6789	str
ORSECB	[2193:4249, 2066:2097]	str
CLOCK1	9.9999,0.0	str
DETSECC	[1:2057, 2065:4128]	str
AMPSECD	[4114:2058, 4128:2065]	str
CLOCK5	9.9999,0.0	str
ORSECA	[8:2064, 2066:2097]	str
DAC15	0.0,0.0297	str
DATASECA	[8:2064, 2:2065]	str
CCDPREP	purge,clear	str
OFFSET7	2.0,6.4908	str
DAC5	5.9998,6.028	str
CLOCK12	9.9992,2.9993	str
CCDSECB	[2058:4114, 1:2064]	str
OFFSET6	2.0,6.0332	str
DAC4	5.9998,6.028	str
PRESECC	[1:7, 2130:4193]	str
OFFSET5	2.0,6.028	str
DAC2	-9.0002,-8.9713	str
CRYOTEMP [1]	162.97	float
PRESECB	[4250:4256, 2:2065]	str
DIGITIME	47.1031	float
DAC3	-10.5005,-10.3824	str
CAMERA	r3	str
DETSECB	[2058:4114, 1:2064]	str
OFFSET1	0.4000000059604645,-8.8065	str
DATASECD	[2193:4249, 2130:4193]	str
SETTINGS	detectors_sm_20191211.json	str
CLOCK11	9.9992,2.9993	str
DAC13	0.0,0.0	str
CLOCK14	9.9992,2.9993	str
CCDSECC	[1:2057, 2065:4128]	str
DATASECC	[8:2064, 2130:4193]	str
CLOCK0	9.9999,0.0	str
CLOCK15	9.9992,2.9993	str
DAC12	0.0,0.0297	str
CCDSIZE	4194,4256	str
OFFSET0	0.4000000059604645,-8.9095	str
ORSECD	[2193:4249, 2098:2129]	str
DAC16	48.0,46.7082	str
PRRSECC	[8:2064, 4194:4194]	str
PRRSECD	[2193:4249, 4194:4194]	str
BIASSECB	[2129:2192, 2:2065]	str
DETSECD	[2058:4114, 2065:4128]	str
CLOCK18	9.0,0.9999	str
DAC17	20.0008,14.274	str
CCDTMING	default_lbnl_timing_20180905.txt	str
DETECTOR	M1-50	str
PRRSECB	[2193:4249, 1:1]	str
TRIMSECC	[8:2064, 2130:4193]	str
DAC14	0.0,0.0148	str
BIASSECD	[2129:2192, 2130:4193]	str
CDSPARMS	400, 400, 8, 2000	str
OFFSET3	0.4000000059604645,-10.3721	str
PRESECA	[1:7, 2:2065]	str
ORSECC	[8:2064, 2098:2129]	str
DAC6	5.9998,6.0332	str
PGAGAIN	3	int
DAC1	-9.0002,-8.8065	str
DATASECB	[2193:4249, 2:2065]	str
CLOCK2	9.9999,0.0	str
CLOCK16	9.9999,3.0	str
PRESECD	[4250:4256, 2130:4193]	str
OFFSET4	2.0,6.0332	str
CLOCK17	9.0,0.9999	str
AMPSECC	[1:2057, 4128:2065]	str
CLOCK8	9.9992,2.9993	str
DETSECA	[1:2057, 1:2064]	str
BIASSECC	[2065:2128, 2130:4193]	str
BLDTIME	0.3504	float
OBSID	kp4m20201221t023911	str
PROCTYPE	RAW	str
PRODTYPE	image	str
GAINA	1.681	float
SATULEVA	28000.0	float
OSTEPA	0.7048677125421818	float
OMETHA	AVERAGE	str
OVERSCNA	1979.586454500641	float
OBSRDNA	2.618213792981265	float
SATUELEA	43740.31516998442	float
GAINB	1.625	float
SATULEVB	57000.0	float
OSTEPB	0.6850349189899134	float
OMETHB	AVERAGE	str
OVERSCNB	1997.289875350671	float
OBSRDNB	3.12518985733541	float
SATUELEB	89379.40395255515	float
GAINC	1.477	float
SATULEVC	59000.0	float
OSTEPC	0.6403308619337622	float
OMETHC	AVERAGE	str
OVERSCNC	1974.691977751432	float
OBSRDNC	2.344388520757958	float
SATUELEC	84226.37994886114	float
GAIND	1.492	float
SATULEVD	62000.0	float
OSTEPD	0.6246898852550657	float
OMETHD	AVERAGE	str
OVERSCND	1998.214476179268	float
OBSRDND	2.301320302261815	float
SATUELED	89522.66400154053	float
FIBERMIN	1500	int
CHECKSUM	9VRaITQX9TQaGTQU	str	HDU checksum updated 2022-02-14T06:14:07
DATASUM	3502588181	str	data unit checksum updated 2022-02-14T06:14:07
SP6BLUP [1]	7.89899999999999e-08	float
TCSMFDEC [1]	1	int
SLEWANGL [1]	15.646	float
TARG2 [1]	DESIROOT/target/catalogs/gaiadr2/0.51.0/targets/sv1/resolve/supp	str
SEQTOT [1]	2	int
MOONSEP [1]	111.881	float
SP5REDP [1]	9.74199999999999e-08	float
SEQSTART [1]	2021-05-08T10:26:00.785886	str
CONVERGD [1]	F	bool
SP9NIRP [1]	5.455e-08	float
SP3REDP [1]	5.899e-08	float
SP1BLUT [1]	162.97	float
SP0BLUT [1]	162.97	float
SP8REDT [1]	139.99	float
SP3BLUP [1]	7.952e-08	float
SP9REDT [1]	139.99	float
SP4NIRP [1]	7.251e-08	float
SP4REDP [1]	5.049e-08	float
PMSEEING [1]	0.93	float
SP1NIRP [1]	6.18e-08	float
SP2REDT [1]	139.99	float
SP5REDT [1]	140.06	float
SP4NIRT [1]	139.99	float
SP7BLUT [1]	162.99	float
USESPLIT [1]	T	bool
SP1BLUP [1]	7.999e-08	float
SP1NIRT [1]	139.96	float
SP1REDT [1]	139.99	float
SP8REDP [1]	3.96e-08	float
SP5BLUT [1]	163.02	float
TARG3 [1]	DESIROOT/target/catalogs/dr9/0.51.0/targets/sv1/resolve/bright	str
TCSGRA [1]	0.3	float
SUNDEC [1]	17.206123	float
SP7NIRP [1]	4.416e-08	float
PMTRANS [1]	95.5	float
SP0NIRT [1]	139.99	float
SP5NIRP [1]	6.57299999999999e-08	float
POSCVFRC [1]	0.3845	float
SP7BLUP [1]	1.04e-07	float
FAARGS [1]	–doclean n –dr dr9 –dtver 0.51.0 –faflavor sv1unwisegreen –m31cen n –pmtime 2021-03-12T00:00:00.000 –priority custom –rundate 2020-01-01T00:00:00 –tiledec 54.98 –tileid 80865 –tilera 242.75	str
NTSSURVY [1]	na	Unknown
SP7REDT [1]	139.99	float
SP2REDP [1]	6.15e-08	float
SP4REDT [1]	140.06	float
SP6BLUT [1]	162.97	float
SP7REDP [1]	3.404e-08	float
SP8NIRP [1]	4.941e-08	float
SP9REDP [1]	5.113e-08	float
SP8NIRT [1]	139.99	float
TCSKRA [1]	0.3 0.003 0.00003	str
SCND [1]	DESIROOT/target/catalogs/dr9/0.51.0/targets/sv1/secondary/dark	str
TCSMFRA [1]	1	int
SP0BLUP [1]	7.565e-08	float
SP3NIRP [1]	4.105e-08	float
SP1REDP [1]	7.239e-08	float
SP4BLUP [1]	6.689e-08	float
SP3NIRT [1]	140.01	float
SP8BLUP [1]	8.31099999999999e-08	float
SP0REDT [1]	139.99	float
SEQID [1]	2 requests	str
SP2BLUP [1]	8.29699999999999e-08	float
DESIROOT [1]	/global/cfs/cdirs/desi	str
SP2BLUT [1]	163.02	float
SP2NIRP [1]	4.884e-08	float
SP9BLUP [1]	1.237e-07	float
TCSGDEC [1]	0.3	float
SP8BLUT [1]	162.97	float
SP9BLUT [1]	162.97	float
SP4BLUT [1]	162.97	float
TCSPIDEC [1]	1.0,0.0,0.0,0.0	str
SP3REDT [1]	139.99	float
SP6NIRT [1]	139.99	float
SP6REDT [1]	139.99	float
SP5NIRT [1]	140.08	float
TCSKDEC [1]	0.3 0.003 0.00003	str
SP0NIRP [1]	7.886e-08	float
SCSTD [1]	STD_WD,STD_FAINT	str
VISITIDS [1]	87615	str
SP0REDP [1]	4.265e-08	float
SUNRA [1]	45.595565	float
SP5BLUP [1]	1.153e-07	float
SKYLEVEL [1]	0.83	float
SP2NIRT [1]	139.99	float
SP6REDP [1]	6.491e-08	float
TCSPIRA [1]	1.0,0.0,0.0,0.0	str
SP7NIRT [1]	139.99	float
SP9NIRT [1]	139.99	float
SPLITEXP [1]	F	bool
SP6NIRP [1]	2.807e-07	float
SP3BLUT [1]	162.99	float
PMCORR [1]	n	str
GOALTYPE [1]	DARK	str
SURVEY [1]	special	str
SCNDMTL [1]	DESIROOT/survey/ops/surveyops/trunk/mtl/main/secondary/dark	str
MINTFRAC [1]	0.85	float
FASCRIPT [1]	./fba_launch-20210513-special	str
MTLTIME [1]	2021-05-13T21:05:00+00:00	str
GOALTIME [1]	1000.0	float
FAPRGRM [1]	dark	str
EBVFAC [1]	1.02471876800862	float
TOO [1]	DESIROOT/survey/ops/surveyops/trunk/mtl/main/ToO/ToO.ecsv	str
SVNDM [1]	136361	str
MTL [1]	DESIROOT/survey/ops/surveyops/trunk/mtl/main/dark	str
SBPROF [1]	ELG	str
SVNMTL [1]	476	str
TOTTEFF [1]	1406.4226	float
REQTEFF [1]	1400.0	int
ACTTEFF [1]	1406.4226	float
BBKGMINB [1]	-0.5249611468569187	float
BBKGMAXA [1]	1.179777031725897	float
BBKGMIND [1]	-0.5599583904094981	float
BBKGMINA [1]	-0.9489741260224904	float
BBKGMAXD [1]	0.2726660093392476	float
BBKGMAXB [1]	0.6927871978458614	float
SEEING [1]	1.291	float
BBKGMAXC [1]	1.270526827094756	float
BBKGMINC [1]	-0.8627791108943093	float
USESPLITS [1]	T	bool
SIMGFAQ [1]	F	bool
SHFTFOCS [1]	220.0	float
ROLE [1]	GUIDERMAN	str
M31CEN [1]	n	str
DTVER [1]	0.50.0	str
DR [1]	dr9	str
PRIORITY [1]	default	str
ETCTHRUB [1]	0.575924	float
ACQFWHM [1]	1.469225	float
ESTTIME [1]	1374.714	float
ETCSPLIT [1]	1	int
ETCFRACE [1]	0.302117	float
ETCFRACP [1]	0.392042	float
ETCTHRUP [1]	0.556996	float
ETCPREV [1]	0.0	float
ETCTHRUE [1]	0.585204	float
ETCREAL [1]	1120.375	float
TRANSPAR [1]	None	Unknown
PMTRANSP [1]	101.86	float
ETCPROF [1]	BGS	str
ETCVERS [1]	0.1.12-3-g12b54bb	str
ETCFRACB [1]	0.136941	float
ETCSKY [1]	2.674912	float
NTSPROG [1]	BRIGHT	str
ETCTRANS [1]	0.798438	float
ETCTEFF [1]	223.989487	float
ETCSEENG [1]	1.4692	float
MAXTIME [1]	5400.0	float
MINTIME [1]	120.0	float

Required Data Table Columns

Name	Type	Units	Description
TARGETID	int64		Unique target ID
PETAL_LOC	int16		Focal plane petal location 0-9
DEVICE_LOC	int32		Device location 0-5xx
LOCATION	int64		1000*PETAL_LOC + DEVICE_LOC
FIBER	int32		Fiber number 0-4999
FIBERSTATUS	int32		Fiber status mask; 0=good
TARGET_RA	float64	deg	Barycentric right ascension in ICRS
TARGET_DEC	float64	deg	Barycentric declination in ICRS
PMRA	float32	mas yr^-1	proper motion in the +RA direction (already including cos(dec))
PMDEC	float32	mas yr^-1	Proper motion in the +Dec direction
REF_EPOCH	float32	yr	Reference epoch for Gaia/Tycho astrometry. Typically 2015.5 for Gaia
LAMBDA_REF	float32	Angstrom	Requested wavelength at which targets should be centered on fibers
FA_TARGET	int64		Targeting bit internally used by fiberassign (linked with FA_TYPE)
FA_TYPE	binary		Fiberassign internal target type (science, standard, sky, safe, suppsky)
OBJTYPE	char[3]		Object type: TGT, SKY, NON, BAD
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
SUBPRIORITY	float64		Random subpriority [0-1) to break assignment ties
OBSCONDITIONS	int32		Bitmask of allowed observing conditions
RELEASE	int16		Imaging surveys release ID
BRICKID	int32		Brick ID from tractor input
BRICK_OBJID	int32		Imaging Surveys OBJID on that brick
MORPHTYPE	char[4]		Imaging Surveys morphological type from Tractor
FLUX_G	float32	nanomaggy	Flux in the Legacy Survey g-band (AB)
FLUX_R	float32	nanomaggy	Flux in the Legacy Survey r-band (AB)
FLUX_Z	float32	nanomaggy	Flux in the Legacy Survey z-band (AB)
FLUX_IVAR_G	float32	nanomaggy^-2	Inverse variance of FLUX_G (AB)
FLUX_IVAR_R	float32	nanomaggy^-2	Inverse variance of FLUX_R (AB)
FLUX_IVAR_Z	float32	nanomaggy^-2	Inverse variance of FLUX_Z (AB)
REF_ID	int64		Tyc1*1,000,000+Tyc2*10+Tyc3 for Tycho-2; “sourceid” for Gaia DR2
REF_CAT	char[2]		Reference catalog source for star: “T2” for Tycho-2, “G2” for Gaia DR2, “L2” for the SGA, empty otherwise
GAIA_PHOT_G_MEAN_MAG	float32	mag	Gaia G band magnitude
GAIA_PHOT_BP_MEAN_MAG	float32	mag	Gaia BP band magnitude
GAIA_PHOT_RP_MEAN_MAG	float32	mag	Gaia RP band magnitude
PARALLAX	float32	mas	Reference catalog parallax
BRICKNAME	char[8]		Brick name from tractor input
EBV	float32	mag	Galactic extinction E(B-V) reddening from SFD98
FLUX_W1	float32	nanomaggy	WISE flux in W1 (AB)
FLUX_W2	float32	nanomaggy	WISE flux in W2 (AB)
FLUX_IVAR_W1	float32	nanomaggy^-2	Inverse variance of FLUX_W1 (AB)
FLUX_IVAR_W2	float32	nanomaggy^-2	Inverse variance of FLUX_W2 (AB)
FIBERFLUX_G	float32	nanomaggy	Predicted g-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing
FIBERFLUX_R	float32	nanomaggy	Predicted r-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing
FIBERFLUX_Z	float32	nanomaggy	Predicted z-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing
FIBERTOTFLUX_G	float32	nanomaggy	Predicted g-band flux within a fiber of diameter 1.5 arcsec from all sources at this location in 1 arcsec Gaussian seeing
FIBERTOTFLUX_R	float32	nanomaggy	Predicted r-band flux within a fiber of diameter 1.5 arcsec from all sources at this location in 1 arcsec Gaussian seeing
FIBERTOTFLUX_Z	float32	nanomaggy	Predicted z-band flux within a fiber of diameter 1.5 arcsec from all sources at this location in 1 arcsec Gaussian seeing
MASKBITS	int16		Bitwise mask from the imaging indicating potential issue or blending
SERSIC	float32		Power-law index for the Sersic profile model (MORPHTYPE=”SER”)
SHAPE_R	float32	arcsec	Half-light radius of galaxy model (>0)
SHAPE_E1	float32		Ellipticity component 1 of galaxy model for galaxy type MORPHTYPE
SHAPE_E2	float32		Ellipticity component 2 of galaxy model for galaxy type MORPHTYPE
PHOTSYS	char[1]		‘N’ for the MzLS/BASS photometric system, ‘S’ for DECaLS
PRIORITY_INIT	int64		Target initial priority from target selection bitmasks and OBSCONDITIONS
NUMOBS_INIT	int64		Initial number of observations for target calculated across target selection bitmasks and OBSCONDITIONS
SV1_DESI_TARGET [1]	int64		DESI (dark time program) target selection bitmask for SV1
SV1_BGS_TARGET [1]	int64		BGS (bright time program) target selection bitmask for SV1
SV1_MWS_TARGET [1]	int64		MWS (bright time program) target selection bitmask for SV1
SV1_SCND_TARGET [1]	int64		Secondary target selection bitmask for SV1
DESI_TARGET	int64		DESI (dark time program) target selection bitmask
BGS_TARGET	int64		BGS (Bright Galaxy Survey) target selection bitmask
MWS_TARGET	int64		Milky Way Survey targeting bits
PLATE_RA	float64	deg	Barycentric Right Ascension in ICRS to be used by PlateMaker
PLATE_DEC	float64	deg	Barycentric Declination in ICRS to be used by PlateMaker
NUM_ITER	int64		Number of positioner iterations
FIBER_X	float64	mm	CS5 X location requested by PlateMaker
FIBER_Y	float64	mm	CS5 Y location requested by PlateMaker
DELTA_X	float64	mm	CS5 X requested minus actual position
DELTA_Y	float64	mm	CS5 Y requested minus actual position
FIBER_RA	float64	deg	RA of actual fiber position
FIBER_DEC	float64	deg	DEC of actual fiber position
EXPTIME	float64	s	Length of time shutter was open
SCND_TARGET [1]	int64		Target selection bitmask for secondary programs
SV3_SCND_TARGET [1]	int64		Secondary target selection bitmask for SV3
SV3_MWS_TARGET [1]	int64		MWS (bright time program) target selection bitmask for SV3
SV3_DESI_TARGET [1]	int64		DESI (dark time program) target selection bitmask for SV3
SV3_BGS_TARGET [1]	int64		BGS (bright time program) target selection bitmask for SV3
SV2_MWS_TARGET [1]	int64		MWS (bright time program) target selection bitmask for SV2
SV2_DESI_TARGET [1]	int64		DESI (dark time program) target selection bitmask for SV2
SV2_SCND_TARGET [1]	int64		Secondary target selection bitmask for SV2
SV2_BGS_TARGET [1]	int64		BGS (bright time program) target selection bitmask for SV2
CMX_TARGET [1]	int64		Target selection bitmask for commissioning

[1] (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320)

Optional

HDU6

EXTNAME = CHI2PIX

\(\chi^2\) of PSF fit to CCD pixels per spectrum wavelength bin.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2326	int	Number of wavelengths
NAXIS2	500	int	Number of spectra
CHECKSUM	WY6VaW3VZW3VaW3V	str	HDU checksum updated 2021-07-08T15:52:40
DATASUM	2321269489	str	data unit checksum updated 2021-07-08T15:52:40

Data: FITS image [float32, 2326x500]

Notes and Examples

For the SURVEY=cmx m33 tile (TILEID=80615) tile and all the SURVEY=sv1 tiles (except TILEID=80971-80976, the dc3r2 ones), proper-motion correction was applied at the fiberassign design step; thus the following columns can have different values than in the desitarget products: TARGET_RA, TARGET_DEC, REF_EPOCH, PLATE_RA, PLATE_DEC, and PLATE_REF_EPOCH.

For targets with a non-zero proper motion, FIBER_RA and FIBER_DEC refer to the position at the reference epoch (but note that the proper-motion correction has been applied at the time of the observation, it is just not recorded in FIBER_RA and FIBER_DEC).