preproc-CAMERA-EXPID.fits

Summary:

Pre-processed spectrograph CCD raw data.

Naming Convention:

preproc-{camera}-{expid}.fits, where {camera} is the spectrograph camera (e.g. “b0”, “r1”, “z9”), and {expid} is the zero-padded 8-digit exposure ID.

Regex:

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

File Type:

FITS, 194 MB

Contents

Number	EXTNAME	Type	Contents
HDU0	IMAGE	IMAGE	Flat-fielded pixel values in electrons [FLOAT]
HDU1	IVAR	IMAGE	Inverse variance (1/sigma^2) of pixel values [FLOAT]
HDU2	MASK	IMAGE	Bitmask to flag bad pixels or cosmics [INT]
HDU3	READNOISE	IMAGE	Flat-fielded readout noise in electrons [FLOAT]
HDU4	FIBERMAP	BINTABLE	Table with information about the targets

FITS Header Units

HDU0

EXTNAME = IMAGE

2D image with flat-fielded pixel values in electrons. Bias level and dark current have been subtracted. Electronic gains, converting ADC count to electrons have been applied. Pixel values have been divided by a pixel flat field. Additional corrections for some CCDs are electronic amplifier cross-talk correction, and negative trails corrections. The pre-scan and over-scan regions have been removed.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	4114	int
NAXIS2	4128	int
EXPID	68979	int	Exposure number
EXPFRAME	0	int	Frame number
FLAVOR	science	str	Observation type
SEQUENCE	Spectrographs	str	OCS Sequence name
PURPOSE	Commissioning	str	Purpose of observing night
PROGRAM	CALIB DESI-CALIB-00 LEDs only	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	2020-12-20T22:24:15.672815	str	[UTC] Observation data and start time
TIME-OBS	22:24:15.672815	str	[UTC] Observation start time
MJD-OBS	59203.93351473	float	Modified Julian Date of observation
ST	20:57:41.340	str	Local Sidereal time at observation start (HH:MM
EXPTIME	120.037	float	[s] Actual exposure time
DELTARA [1]	0.0	float	[arcsec] Offset], right ascension, observer inp
DELTADEC [1]	0.0	float	[arcsec] Offset], declination, observer input
VCCD	ON	str	True (ON) if CCD voltage is on
VCCDON	2020-12-14T04:22:19.522101	str	Time when CCD voltage was turned on
VCCDSEC	583485.8	float	[s] CCD on time in seconds
EQUINOX	2000.0	float	Epoch of observation
SPECGRPH	5	int	Spectrograph logical name (SP)
SPECID	9	int	Spectrograph serial number (SM)
FEEBOX	lbnl057	str	CCD Controller serial number
VESSEL	26	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	-135.8073	float	[deg C] CCD controller CCD temperature
RADESYS	FK5	str	Coordinate reference frame of major/minor axes
FILENAME	/exposures/desi/specs/20201220/00068979/sp9-00068979.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
DAC3	-9.0002,-8.9919	str	[V] set value, measured value
CLOCK5	9.9999,0.0	str	[V] high rail, low rail
BLDTIME	0.3522	float	[s] Time to build image
CLOCK2	9.9999,0.0	str	[V] high rail, low rail
BIASSECD	[2129:2192, 2130:4193]	str	Bias section for quadrant D
PGAGAIN	3	int	Controller gain
OFFSET5	2.0,5.9964	str	[V] set value, measured value
BIASSECB	[2129:2192, 2:2065]	str	Bias section for quadrant B
CLOCK4	9.9999,0.0	str	[V] high rail, low rail
ORSECD	[2193:4249, 2098:2129]	str	Row bias section for quadrant D
DAC2	-9.0002,-8.9404	str	[V] set value, measured value
DAC6	5.9998,6.0437	str	[V] set value, measured value
CCDPREP	purge,clear	str	CCD prep actions
CASETEMP	59.322	float	[deg C] CCD controller case temperature
DAC15	0.0,-0.0148	str	[V] set value, measured value
DAC16	39.9961,39.8706	str	[V] set value, measured value
DAC9	-25.0003,-24.6344	str	[V] set value, measured value
AMPSECB	[4114:2058, 1:2064]	str	AMP section for quadrant B
DAC11	-25.0003,-24.5157	str	[V] set value, measured value
DELAYS	20, 20, 25, 40, 7, 3000, 7, 7, 7, 7	str	[10] Delay settings
CLOCK13	9.9992,2.9993	str	[V] high rail, low rail
PRESECD	[4250:4256, 2130:4193]	str	Prescan section for quadrant D
CDSPARMS	400, 400, 8, 2000	str	CDS parameters
DATASECD	[2193:4249, 2130:4193]	str	Data section for quadrant D
CLOCK15	9.9992,2.9993	str	[V] high rail, low rail
CLOCK18	9.0,0.9999	str	[V] high rail, low rail
CLOCK8	9.9992,2.9993	str	[V] high rail, low rail
OFFSET7	2.0,6.0122	str	[V] set value, measured value
DAC8	-25.0003,-24.946	str	[V] set value, measured value
CCDSECC	[1:2057, 2065:4128]	str	CCD section for quadrant C
CLOCK14	9.9992,2.9993	str	[V] high rail, low rail
CLOCK3	-2.0001,3.9999	str	[V] high rail, low rail
DIGITIME	47.5948	float	[s] Time to digitize image
CLOCK1	9.9999,0.0	str	[V] high rail, low rail
PRRSECD	[2193:4249, 4194:4194]	str	Row prescan section for quadrant D
CLOCK9	9.9992,2.9993	str	[V] high rail, low rail
CCDNAME	CCDSM9R	str	CCD name
DETSECB	[2058:4114, 1:2064]	str	Detector section for quadrant B
CCDSECA	[1:2057, 1:2064]	str	CCD section for quadrant A
DETSECD	[2058:4114, 2065:4128]	str	Detector section for quadrant D
DATASECB	[2193:4249, 2:2065]	str	Data section for quadrant B
CRYOPRES [1]	1.166e-07	str	[mb] Cryostat pressure (IP)
CAMERA	r5	str	Camera name
PRRSECA	[8:2064, 1:1]	str	Row prescan section for quadrant A
DAC1	-9.0002,-8.9507	str	[V] set value, measured value
PRESECC	[1:7, 2130:4193]	str	Prescan section for quadrant C
TRIMSECA	[8:2064, 2:2065]	str	Trim section for quadrant A
TRIMSECD	[2193:4249, 2130:4193]	str	Trim section for quadrant D
CCDCFG	default_lbnl_20190717.cfg	str	CCD configuration file
PRRSECB	[2193:4249, 1:1]	str	Row prescan section for quadrant B
CLOCK12	9.9992,2.9993	str	[V] high rail, low rail
CCDSECB	[2058:4114, 1:2064]	str	CCD section for quadrant B
TRIMSECB	[2193:4249, 2:2065]	str	Trim section for quadrant B
DATASECA	[8:2064, 2:2065]	str	Data section for quadrant A
DAC17	20.0008,12.3342	str	[V] set value, measured value
CLOCK17	9.0,0.9999	str	[V] high rail, low rail
PRESECB	[4250:4256, 2:2065]	str	Prescan section for quadrant B
CLOCK0	9.9999,0.0	str	[V] high rail, low rail
PRESECA	[1:7, 2:2065]	str	Prescan section for quadrant A
ORSECA	[8:2064, 2066:2097]	str	Row overscan section for quadrant A
BIASSECC	[2065:2128, 2130:4193]	str	Bias section for quadrant C
DETSECC	[1:2057, 2065:4128]	str	Detector section for quadrant C
DAC14	0.0,-0.0148	str	[V] set value, measured value
DAC4	5.9998,6.0595	str	[V] set value, measured value
CLOCK16	9.9999,3.0	str	[V] high rail, low rail
AMPSECA	[1:2057, 1:2064]	str	AMP section for quadrant A
OFFSET4	2.0,6.0595	str	[V] set value, measured value
CCDSIZE	4194,4256	str	CCD size in pixels (rows, columns)
OFFSET2	0.4000000059604645,-8.9301	str	[V] set value, measured value
DAC13	0.0,-0.0148	str	[V] set value, measured value
CRYOTEMP [1]	163.02	float	[deg K] Cryostat CCD temperature
OFFSET6	2.0,6.0437	str	[V] set value, measured value
CLOCK6	9.9999,0.0	str	[V] high rail, low rail
DETSECA	[1:2057, 1:2064]	str	Detector section for quadrant A
CCDTMING	default_lbnl_timing_20180905.txt	str	CCD timing file
DETECTOR	M1-52	str	Detector (ccd) identification
OFFSET3	0.4000000059604645,-8.9816	str	[V] set value, measured value
AMPSECC	[1:2057, 4128:2065]	str	AMP section for quadrant C
CLOCK10	9.9992,2.9993	str	[V] high rail, low rail
ORSECC	[8:2064, 2098:2129]	str	Row overscan section for quadrant C
SETTINGS	detectors_sm_20191211.json	str	Name of DESI CCD settings file
CPUTEMP	58.9629	float	[deg C] CCD controller CPU temperature
OFFSET0	0.4000000059604645,-8.755	str	[V] set value, measured value
DAC12	0.0,0.0	str	[V] set value, measured value
DATASECC	[8:2064, 2130:4193]	str	Data section for quadrant C
AMPSECD	[4114:2058, 4128:2065]	str	AMP section for quadrant D
DAC10	-25.0003,-25.0054	str	[V] set value, measured value
CLOCK7	-2.0001,3.9999	str	[V] high rail, low rail
DAC0	-9.0002,-8.7653	str	[V] set value, measured value
CLOCK11	9.9992,2.9993	str	[V] high rail, low rail
DAC7	5.9998,6.0122	str	[V] set value, measured value
OFFSET1	0.4000000059604645,-8.9507	str	[V] set value, measured value
DAC5	5.9998,5.9964	str	[V] set value, measured value
ORSECB	[2193:4249, 2066:2097]	str	Row overscan section for quadrant B
CCDSECD	[2058:4114, 2065:4128]	str	CCD section for quadrant D
PRRSECC	[8:2064, 4194:4194]	str	Row prescan section for quadrant C
TRIMSECC	[8:2064, 2130:4193]	str	Trim section for quadrant C
BIASSECA	[2065:2128, 2:2065]	str	Bias section for quadrant A
REQTIME	120.0	float	[s] Requested exposure time
OBSID	kp4m20201220t222415	str	Unique observation identifier
PROCTYPE	RAW	str	Data processing level
PRODTYPE	image	str	Data product type
CHECKSUM	JfhdMZgdJfgdJZgd	str	HDU checksum updated 2022-01-29T00:45:28
DATASUM	38776208	str	data unit checksum updated 2022-01-29T00:45:28
GAINA	1.684	float	e/ADU (gain applied to image)
SATULEVA	33000.0	float	saturation or non lin. level, in ADU, inc. bias
OSTEPA	0.6500495005602716	float	ADUs (max-min of median overscan per row)
OMETHA	AVERAGE	str	use average overscan
OVERSCNA	1972.92976646288	float	ADUs (gain not applied)
OBSRDNA	3.218229918807175	float	electrons (gain is applied)
SATUELEA	52249.58627327651	float	saturation or non lin. level, in electrons
GAINB	1.655	float	e/ADU (gain applied to image)
SATULEVB	47000.0	float	saturation or non lin. level, in ADU, inc. bias
OSTEPB	0.6179795354764792	float	ADUs (max-min of median overscan per row)
OMETHB	AVERAGE	str	use average overscan
OVERSCNB	1975.23548556518	float	ADUs (gain not applied)
OBSRDNB	3.153470147761547	float	electrons (gain is applied)
SATUELEB	74515.98527138963	float	saturation or non lin. level, in electrons
GAINC	1.467	float	e/ADU (gain applied to image)
SATULEVC	65535.0	float	saturation or non lin. level, in ADU, inc. bias
OSTEPC	0.5848174212296726	float	ADUs (max-min of median overscan per row)
OMETHC	AVERAGE	str	use average overscan
OVERSCNC	1959.467167892971	float	ADUs (gain not applied)
OBSRDNC	2.894849081776217	float	electrons (gain is applied)
SATUELEC	93265.30666470101	float	saturation or non lin. level, in electrons
GAIND	1.509	float	e/ADU (gain applied to image)
SATULEVD	65535.0	float	saturation or non lin. level, in ADU, inc. bias
OSTEPD	0.4709297982626595	float	ADUs (max-min of median overscan per row)
OMETHD	AVERAGE	str	use average overscan
OVERSCND	1992.393350767962	float	ADUs (gain not applied)
OBSRDND	2.694583892275785	float	electrons (gain is applied)
SATUELED	95885.79343369114	float	saturation or non lin. level, in electrons
FIBERMIN [1]	2500	int
LONGSTRN	OGIP 1.0	str	The OGIP Long String Convention may be used.
MODULE	CI	str	Image Sources/Component
FRAMES [1]	None	Unknown	Number of Frames in Archive
COSMSPLT	F	bool	Cosmics split exposure if true
MAXSPLIT	0	int	Number of allowed exposure splits
SPLITIDS [1]	68979	str	List of expids for split exposures
OBSTYPE	FLAT	str	Spectrograph observation type
MANIFEST	F	bool	DOS exposure manifest
OBJECT		str	Object name
SEQID [1]	3 requests	str	Exposure sequence identifier
SEQNUM	2	int	Number of exposure in sequence
SEQTOT [1]	3	int	Total number of exposures in sequence
OPENSHUT	None	Unknown	Time shutter opened
CAMSHUT	open	str	Shutter status during observation
WHITESPT [1]	T	bool	Telescope is at whitespot
ZENITH [1]	F	bool	Telescope is at zenith
SEANNEX [1]	F	bool	Telescope is at SE annex
BEYONDP [1]	F	bool	Telescope is beyond pole
FIDUCIAL [1]	off	str	Fiducials status during observation
AIRMASS [1]	1.521306	float	Airmass
FOCUS [1]	1163.9,-689.8,370.4,13.8,24.2,-0.0	str	Telescope focus settings
TRUSTEMP [1]	13.267	float	[deg] Average Telescope truss temperature (only
PMIRTEMP [1]	7.35	float	[deg] Average primary mirror temperature (nit,e
PMREADY [1]	F	bool	Primary mirror ready
PMCOVER [1]	open	str	Primary mirror cover
PMCOOL [1]	on	str	Primary mirror cooling
DOMSHUTU [1]	not open	str	Upper dome shutter
DOMSHUTL [1]	not open	str	Lower dome shutter
DOMLIGHH [1]	off	str	High dome lights
DOMLIGHL [1]	off	str	Low dome lights
DOMEAZ [1]	253.289	float	[deg] Dome azimuth angle
DOMINPOS [1]	F	bool	Dome is in position
GUIDOFFR [1]	0.0	float	[arcsec] Cummulative guider offset (RA)
GUIDOFFD [1]	-0.0	float	[arcsec] Cummulative guider offset (dec)
MOONDEC [1]	-9.830944	float	[deg] Moon declination at start of exposure
MOONRA [1]	350.511461	float	[deg] Moon RA at start of exposure
MOUNTAZ [1]	73.49407	float	[deg] Mount azimuth angle
MOUNTDEC [1]	31.962703	float	[deg] Mount declination
MOUNTEL [1]	41.035778	float	[deg] Mount elevation angle
MOUNTHA [1]	-58.479517	float	[deg] Mount hour angle
INCTRL [1]	F	bool	DESI in control
INPOS [1]	T	bool	Mount in position
MNTOFFD [1]	-0.0	float	[arcsec] Mount offset (dec)
MNTOFFR [1]	-0.0	float	[arcsec] Mount offset (RA)
PARALLAC [1]	-73.492813	float	[deg] Parallactic angle
SKYDEC [1]	31.962703	float	[deg] Telescope declination (pointing on sky)
SKYRA [1]	12.901561	float	[deg] Telescope right ascension (pointing on sk
TARGTDEC [1]	31.963299	float	[deg] Target declination (to TCS)
TARGTRA [1]	6.305086	float	[deg] Target right ascension (to TCS)
TARGTAZ [1]	75.558672	float	[deg] Target azimuth
TARGTEL [1]	46.429343	float	[deg] Target elevation
TRGTOFFD [1]	0.0	float	[arcsec] Telescope target offset (dec)
TRGTOFFR [1]	0.0	float	[arcsec] Telescope target offset (RA)
ZD [1]	48.964222	float	[deg] Telescope zenith distance
TCSST [1]	20:57:41.291	str	Local Sidereal time reported by TCS (HH:MM:SS)
TCSMJD [1]	59203.933945	float	MJD reported by TCS
ADCCORR	F	bool	Correct pointing for ADC setting if True
ADC1PHI [1]	114.980003	float	[deg] ADC 1 angle
ADC2PHI [1]	162.869907	float	[deg] ADC 2 angle
ADC1HOME [1]	F	bool	ADC 1 at home position if True
ADC2HOME [1]	F	bool	ADC 2 at home position if True
ADC1NREV [1]	0.0	float	ADC 1 number of revs
ADC2NREV [1]	-1.0	float	ADC 2 number of revs
ADC1STAT [1]	STOPPED	str	ADC 1 status
ADC2STAT [1]	STOPPED	str	ADC 2 status
HEXPOS [1]	1163.9,-689.8,370.4,13.8,24.2,-0.0	str	Hexapod position
HEXTRIM [1]	0.0,0.0,0.0,0.0,0.0,0.0	str	Hexapod trim values
ROTOFFST [1]	0.0	float	[arcsec] Rotator offset
ROTENBLD [1]	T	bool	Rotator enabled
ROTRATE [1]	0.0	float	[arcsec/min] Rotator rate
RESETROT	F	bool	DOS Control: reset hex rotator
GUIDMODE	catalog	str	Guider mode
USEAOS [1]	F	bool	DOS Control: AOS data available if true
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 [1]	-18.2	float	Telescope air dew point
TAIRFLOW [1]	1.121	float	Telescope air flow
TAIRITMP [1]	10.5	float	[deg] Telescope air in temperature
TAIROTMP [1]	5.5	float	[deg] Telescope air out temperature
TAIRTEMP [1]	11.86	float	[deg] Telescope air temperature
TCASITMP [1]	0.0	float	[deg] Telescope Cass Cage in temperature
TCASOTMP [1]	9.6	float	[deg] Telescope Cass Cage out temperature
TCSITEMP [1]	7.4	float	[deg] Telescope center section in temperature
TCSOTEMP [1]	10.2	float	[deg] Telescope center section out temperature
TCIBTEMP [1]	0.0	float	[deg] Telescope chimney IB temperature
TCIMTEMP [1]	0.0	float	[deg] Telescope chimney IM temperature
TCITTEMP [1]	0.0	float	[deg] Telescope chimney IT temperature
TCOSTEMP [1]	0.0	float	[deg] Telescope chimney OS temperature
TCOWTEMP [1]	0.0	float	[deg] Telescope chimney OW temperature
TDBTEMP [1]	7.4	float	[deg] Telescope dec bore temperature
TFLOWIN [1]	7.7	float	Telescope flow rate in
TFLOWOUT [1]	8.3	float	Telescope flow rate out
TGLYCOLI [1]	-1.8	float	[deg] Telescope glycol in temperature
TGLYCOLO [1]	0.0	float	[deg] Telescope glycol out temperature
THINGES [1]	12.9	float	[deg] Telescope hinge S temperature
THINGEW [1]	11.7	float	[deg] Telescope hinge W temperature
TPMAVERT [1]	7.304	float	[deg] Telescope mirror averagetemperature
TPMDESIT [1]	7.0	float	[deg] Telescope mirror desired temperature
TPMEIBT [1]	7.3	float	[deg] Telescope mirror EIB temperature
TPMEITT [1]	7.3	float	[deg] Telescope mirror EIT temperature
TPMEOBT [1]	7.4	float	[deg] Telescope mirror EOB temperature
TPMEOTT [1]	7.2	float	[deg] Telescope mirror EOT temperature
TPMNIBT [1]	7.4	float	[deg] Telescope mirror NIB temperature
TPMNITT [1]	7.3	float	[deg] Telescope mirror NIT temperature
TPMNOBT [1]	7.7	float	[deg] Telescope mirror NOB temperature
TPMNOTT [1]	7.6	float	[deg] Telescope mirror NOT temperature
TPMRTDT [1]	6.96	float	[deg] Telescope mirror RTD temperature
TPMSIBT [1]	7.4	float	[deg] Telescope mirror SIB temperature
TPMSITT [1]	7.0	float	[deg] Telescope mirror SIT temperature
TPMSOBT [1]	7.4	float	[deg] Telescope mirror SOB temperature
TPMSOTT [1]	7.2	float	[deg] Telescope mirror SOT temperature
TPMSTAT [1]	soft air	str	Telescope mirror status
TPMWIBT [1]	7.2	float	[deg] Telescope mirror WIB temperature
TPMWITT [1]	7.1	float	[deg] Telescope mirror WIT temperature
TPMWOBT [1]	7.6	float	[deg] Telescope mirror WOB temperature
TPMWOTT [1]	8.1	float	[deg] Telescope mirror WOT temperature
TPCITEMP [1]	7.7	float	[deg] Telescope primary cell in temperature
TPCOTEMP [1]	7.7	float	[deg] Telescope primary cell out temperature
TPR1HUM [1]	0.0	float	Telescope probe 1 humidity
TPR1TEMP [1]	0.0	float	[deg] Telescope probe1 temperature
TPR2HUM [1]	0.0	float	Telescope probe 2 humidity
TPR2TEMP [1]	0.0	float	[deg] Telescope probe2 temperature
TSERVO [1]	7.0	float	Telescope servo setpoint
TTRSTEMP [1]	13.2	float	[deg] Telescope top ring S temperature
TTRWTEMP [1]	13.4	float	[deg] Telescope top ring W temperature
TTRUETBT [1]	-4.8	float	[deg] Telescope truss ETB temperature
TTRUETTT [1]	11.5	float	[deg] Telescope truss ETT temperature
TTRUNTBT [1]	10.9	float	[deg] Telescope truss NTB temperature
TTRUNTTT [1]	11.8	float	[deg] Telescope truss NTT temperature
TTRUSTBT [1]	11.1	float	[deg] Telescope truss STB temperature
TTRUSTST [1]	10.8	float	[deg] Telescope truss STS temperature
TTRUSTTT [1]	12.4	float	[deg] Telescope truss STT temperature
TTRUTSBT [1]	13.6	float	[deg] Telescope truss TSB temperature
TTRUTSMT [1]	13.7	float	[deg] Telescope truss TSM temperature
TTRUTSTT [1]	12.5	float	[deg] Telescope truss TST temperature
TTRUWTBT [1]	10.9	float	[deg] Telescope truss WTB temperature
TTRUWTTT [1]	11.6	float	[deg] Telescope truss WTT temperature
ALARM [1]	F	bool	UPS major alarm or check battery
ALARM-ON [1]	F	bool	UPS active alarm condition
BATTERY [1]	100.0	float	[%] UPS Battery left
SECLEFT [1]	5772.0	float	[s] UPS Seconds left
UPSSTAT [1]	System Normal - On Line(7)	str	UPS Status
INAMPS [1]	64.3	float	[A] UPS total input current
OUTWATTS [1]	4500.0,6800.0,4100.0	str	[W] UPS Phase A, B, C output watts
COMPDEW [1]	-12.0	float	[deg C] Computer room dewpoint
COMPHUM [1]	7.8	float	[%] Computer room humidity
COMPAMB [1]	19.4	float	[deg C] Computer room ambient temperature
COMPTEMP [1]	24.9	float	[deg C] Computer room hygrometer temperature
DEWPOINT [1]	5.7	float	[deg C] (outside) dewpoint
HUMIDITY [1]	7.0	float	[%] (outside) humidity
PRESSURE [1]	794.7	float	[torr] (outside) air pressure
OUTTEMP [1]	0.0	float	[deg C] outside temperature
WINDDIR [1]	82.0	float	[deg] wind direction
WINDSPD [1]	23.3	float	[m/s] wind speed
GUST [1]	18.1	float	[m/s] Wind gusts speed
AMNIENTN [1]	13.3	float	[deg C] ambient temperature north
CFLOOR [1]	8.1	float	[deg C] temperature on C floor
NWALLIN [1]	13.6	float	[deg C] temperature at north wall inside
NWALLOUT [1]	8.8	float	[deg C] temperature at north wall outside
WWALLIN [1]	12.8	float	[deg C] temperature at west wall inside
WWALLOUT [1]	9.4	float	[deg C] temperature at west wall outside
AMBIENTS [1]	14.6	float	[deg C] ambient temperature south
FLOOR [1]	12.3	float	[deg C] temperature at floor (LCR)
EWALLCMP [1]	10.2	float	[deg C] temperature at east wall, computer room
EWALLCOU [1]	9.5	float	[deg C] temperature at east wall, Coude room
ROOF [1]	10.0	float	[deg C] temperature on roof
ROOFAMB [1]	9.9	float	[deg C] ambient temperature on roof
DOMEBLOW [1]	12.1	float	[deg C] temperature at dome back, lower
DOMEBUP [1]	12.5	float	[deg C] temperature at dome back, upper
DOMELLOW [1]	14.4	float	[deg C] temperature at dome left, lower
DOMELUP [1]	19.3	float	[deg C] temperature at dome left, upper
DOMERLOW [1]	12.3	float	[deg C] temperature at dome right, lower
DOMERUP [1]	12.8	float	[deg C] temperature at dome right, upper
PLATFORM [1]	15.3	float	[deg C] temperature at platform
SHACKC [1]	15.2	float	[deg C] temperature at shack ceiling
SHACKW [1]	13.2	float	[deg C] temperature at shack wall
STAIRSL [1]	12.6	float	[deg C] temperature at stairs, lower
STAIRSM [1]	13.3	float	[deg C] temperature at stairs, mid
STAIRSU [1]	13.6	float	[deg C] temperature at stairs, upper
TELBASE [1]	8.5	float	[deg C] temperature at telescope base
UTILWALL [1]	11.6	float	[deg C] temperature at utility room wall
UTILROOM [1]	12.4	float	[deg C] temperature in utilitiy room
EXCLUDED		str	Components excluded from this exposure
MOONSEP [1]	53.303	float	[deg] Moon Separation
TCSMFDEC [1]	2	int	TCS moving filter length (dec)
TRANSPAR [1]	None	Unknown	ETC/PM transparency
TCSGRA [1]	0.15	float	TCS simple gain (RA)
SEEING [1]	None	float	[arcsec] ETC/PM seeing
TCSKDEC [1]	0.01 0.04 0.01	str	TCS Kalman (dec)
TCSPIDEC [1]	0.9,0.0,0.0,0.0	str	TCS PI settings (P, I (gain, error window, satu
TCSPIRA [1]	0.9,0.0,0.0,0.0	str	TCS PI settings (P, I (gain, error window, satu
SEQSTART [1]	2021-07-07T00:53:59.919044	str	Start time of sequence processing
TCSMFRA [1]	2	int	TCS moving filter length (RA)
NTSSURVY [1]	na	str	NTS survey name
SUNRA [1]	106.440846	float	[deg] Sun RA at start of exposure
SUNDEC [1]	22.575648	float	[deg] Sun declination at start of exposure
TCSGDEC [1]	0.15	float	TCS simple gain (dec)
TCSKRA [1]	0.01 0.04 0.01	str	TCS Kalman (RA)
SP6REDT [1]	139.99	float	[K] SP6 red temperature
ETCTEFF [1]	188.90274	float	[s] ETC effective exposure time
USEDONUT [1]	T	bool	DOS Control: use donuts
SP3REDP [1]	7.09e-08	float	[mb] SP3 red pressure
SP2NIRP [1]	7.628e-08	float	[mb] SP2 NIR pressure
TGFAPROC [1]	4.7487	float	[s] PlateMaker GFAPROC processing time
SP6NIRT [1]	139.99	float	[K] SP6 NIR temperature
GUIEXPID [1]	91269	int	Guider exposure id at start of spectro exp.
SP9NIRP [1]	4.982e-08	float	[mb] SP9 NIR pressure
SP1REDP [1]	7.756e-08	float	[mb] SP1 red pressure
GUIDECAM [1]	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str	Guide cameras used for t
REQADC [1]	348.89,10.34	str	[deg] requested ADC angles
SP8REDP [1]	5.299e-08	float	[mb] SP8 red pressure
SP6BLUP [1]	7.73e-08	float	[mb] SP6 blue pressure
USEPOS [1]	T	bool	Fiber positioner data available if true
FSFRMNUM [1]	4	int	Sky frame number at end of spectro exp.
SKYTIME [1]	60.0	float	[s] sky camera exposure time (acquisition)
ETCREAL [1]	359.955383	float	[s] ETC real open shutter time
FGFRMNUM [1]	53	int	Guider frame number at end of spectro exp.
SP2BLUT [1]	162.99	float	[K] SP2 blue temperature
SP8NIRT [1]	139.99	float	[K] SP8 NIR temperature
POSMVALL [1]	T	bool	Positioning Control: move all positioners
SP0BLUP [1]	8.506e-08	float	[mb] SP0 blue pressure
SP6REDP [1]	6.497e-08	float	[mb] SP6 red pressure
USEFOCUS [1]	T	bool	DOS Control: use focus
SP9REDT [1]	140.13	float	[K] SP9 red temperature
SP4NIRP [1]	6.464e-08	float	[mb] SP4 NIR pressure
POSCVFRC [1]	0.6457	float	Fraction of converged positioners
SP8BLUP [1]	8.514e-08	float	[mb] SP8 blue pressure
POSONFRC [1]	1.0	float	Fraction of positioners on target
SP7REDP [1]	4.929e-08	float	[mb] SP7 red pressure
USEILLUM [1]	T	bool	DOS Control: use illuminator
STOPFOCS [1]	T	bool	DOS Control: stop focus
IFFRMNUM [1]	1	int	Focus frame number at start of spectro exp.
SP9NIRT [1]	139.99	float	[K] SP9 NIR temperature
STOPGUDR [1]	T	bool	DOS Control: stop guider
POSENABL [1]	4183	int	Number of enabled positioners
SP5NIRP [1]	9.685e-08	float	[mb] SP5 NIR pressure
ETCFRACP [1]	0.598449	float	ETC transp. weighted avg. FFRAC (PSF)
REACQUIR [1]	F	bool	DOS Control: reacquire same files
ESTTIME [1]	685.169	float	[s] Estimated exposure time for visit (from ETC
SPLITEXP [1]	F	bool	Split exposure part of a visit
SP1BLUT [1]	162.97	float	[K] SP1 blue temperature
POSTOLER [1]	0.005	float	Positioning Control: in_position tolerance (mm)
SBPROF [1]	BGS	str	Profile used by ETC
SP1BLUP [1]	8.436e-08	float	[mb] SP1 blue pressure
TILEID [1]	21088	int	DESI Tile ID
FIBASSGN [1]	/data/tiles/SVN_tiles/021/fiberassign-021088.fits.gz	str	Fiber assign
CONVERGD [1]	F	bool	Positioning loop converged (CNFRC>0.95)
ETCTRANS [1]	0.873803	float	ETC avg. TRANSP normalized to 1
POSRMS [1]	0.0046	float	[micron] RMS of positioner accuracy
SP5BLUT [1]	163.02	float	[K] SP5 blue temperature
SP7NIRP [1]	4.958e-08	float	[mb] SP7 NIR pressure
POSFRACT [1]	0.95	float
ETCTHRUP [1]	0.930508	float	ETC avg. thruput (PSF profile)
POSCNVGD [1]	2701	bool	Number of positioners converged
SP0NIRP [1]	6.295e-08	float	[mb] SP0 NIR pressure
SP6NIRP [1]	2.749e-07	float	[mb] SP6 NIR pressure
USEXSRVR [1]	T	bool	DOS Control: use exposure server
POSDISAB [1]	798	int	Number of disabled positioners
FOCUSCAM [1]	FOCUS1,FOCUS4,FOCUS6,FOCUS9	str	Focus cameras used for this exposure
NTSPROG [1]	BRIGHT	str	NTS program name
SP1REDT [1]	139.99	float	[K] SP1 red temperature
FOCSTIME [1]	60.0	float	[s] focus GFA exposure time
ACTTEFF [1]	188.90274	float	[s] Actual effective exposure time
PETALS [1]	PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9	str	Participating petals
SP0REDT [1]	139.99	float	[K] SP0 red temperature
MAXTIME [1]	5400.0	float	[s] Maximum exposure time for entire visit (fro
SP0NIRT [1]	139.99	float	[K] SP0 NIR temperature
USEFID [1]	T	bool	DOS Control: use fiducials
ISFRMNUM [1]	5	int	Sky frame number at start of spectro exp.
USEETC [1]	T	bool	ETC data available if true
SP3NIRP [1]	4.205e-08	float	[mb] SP3 NIR pressure
SKYCAM [1]	SKYCAM0,SKYCAM1	str	Sky cameras used for this exposure
SP0REDP [1]	5.012e-08	float	[mb] SP0 red pressure
REQDEC [1]	11.479	float	[deg] Requested declination (observer input)
ETCFRACB [1]	0.190657	float	ETC transp. weighted avg. FFRAC (BGS)
SP7REDT [1]	139.99	float	[K] SP7 red temperature
SP7NIRT [1]	139.99	float	[K] SP7 NIR temperature
SLEWANGL [1]	5.812	float	[deg] Slew Angle
ETCSKY [1]	1.373246	float	ETC averaged, normalized sky camera flux
ETCFRACE [1]	0.427971	float	ETC transp. weighted avg. FFRAC (ELG)
SP5NIRT [1]	140.03	float	[K] SP5 NIR temperature
USESPCTR [1]	T	bool	DOS Control: use spectrographs
SP2REDT [1]	139.99	float	[K] SP2 red temperature
ETCPREV [1]	0.0	float	[s] ETC cummulative t_eff for visit
SKYEXPID [1]	91268	int	Sky exposure id at start of spectro exp.
USEFVC [1]	T	bool	DOS Control: use fvc
PMTRANSP [1]	101.86	float	[%] PlateMaker GFAPROC transparency
STOPSKY [1]	T	bool	DOS Control: stop sky monitor
KEEPFOCS [1]	F	bool	DOS Control: keep focus running
SP1NIRT [1]	139.99	float	[K] SP1 NIR temperature
USEOPENL [1]	T	bool	DOS Control: use open loop move
SP4BLUT [1]	162.99	float	[K] SP4 blue temperature
SKYLEVEL [1]	1.359	float	[counts?] ETC sky level
USEGUIDR [1]	T	bool	DOS Control: use guider
VISITIDS [1]	91269	str	List of expids for a visit (same tile)
SP4BLUP [1]	6.4e-08	float	[mb] SP4 blue pressure
SP1NIRP [1]	6.617e-08	float	[mb] SP1 NIR pressure
SP4REDP [1]	5.177e-08	float	[mb] SP4 red pressure
ETCTHRUB [1]	0.877517	float	ETC avg. thruput (BGS profile)
USESPLIT [1]	T	bool	Exposure splits are allowed
SP8BLUT [1]	162.97	float	[K] SP8 blue temperature
SIMGFAP [1]	F	bool	DOS Control: simulate GFAPROC
SP4NIRT [1]	139.99	float	[K] SP4 NIR temperature
REQTEFF [1]	180.0	float	[s] Requested effective exposure time
SP5REDP [1]	6.023e-08	float	[mb] SP5 red pressure
SP7BLUT [1]	162.97	float	[K] SP7 blue temperature
ETCTHRUE [1]	0.907236	float	ETC avg. thruput (ELG profile)
SP3BLUP [1]	9.573e-08	float	[mb] SP3 blue pressure
POSITER [1]	1	int	Positioning Control: max. number of pos. cycles
SP3BLUT [1]	162.99	float	[K] SP3 blue temperature
REQRA [1]	202.544	float	[deg] Requested right ascension (observer input
SP8NIRP [1]	5.185e-08	float	[mb] SP8 NIR pressure
ACQFWHM [1]	1.091989	float	[arcsec] FWHM of guide star PSF in acq. image
FFFRMNUM [1]	6	int	Focus frame number at end of spectro exp.
ETCSPLIT [1]	1	int	ETC split sequence number for this visit
IGFRMNUM [1]	10	int	Guider frame number at start of spectro exp.
USEROTAT [1]	T	bool	DOS Control: use rotator
SP9BLUP [1]	1.21e-07	float	[mb] SP9 blue pressure
SP0BLUT [1]	162.97	float	[K] SP0 blue temperature
SP2NIRT [1]	139.99	float	[K] SP2 NIR temperature
KEEPGUDR [1]	F	bool	DOS Control: keep guider running
SP5REDT [1]	140.03	float	[K] SP5 red temperature
ACQCAM [1]	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str	Acquisition cameras used
SP7BLUP [1]	1.04e-07	float	[mb] SP7 blue pressure
TILERA [1]	202.544	float	RA of tile given in fiberassign file
PMSEEING [1]	1.12	float	[arcsec] PlateMaker GFAPROC seeing
TOTTEFF [1]	187.1934	float	[s] Total effective exposure time for visit
TNFSPROC [1]	11.8836	float	[s] PlateMaker NFSPROC processing time
ETCPROF [1]	BGS	str	ETC source brightness profile
SIMGFACQ [1]	F	bool
BACKLIT [1]	off	str	Fibers are backlit if True
SP3NIRT [1]	139.99	float	[K] SP3 NIR temperature
USESKY [1]	T	bool	DOS Control: use Sky Monitor
POSCYCLE [1]	1	int	Number of current iteration
FOCEXPID [1]	91269	int	Focus exposure id at start of spectro exp.
SP4REDT [1]	140.06	float	[K] SP4 red temperature
SP6BLUT [1]	162.97	float	[K] SP6 blue temperature
ETCVERS [1]	0.1.12-5-g205dbce	str	ETC version
MINTIME [1]	180.0	float	[s] Minimum exposure time (from NTS, used by ET
ETCSEENG [1]	1.092	float	[arcsec] ETC seeing
TILEDEC [1]	11.479	float	DEC of tile given in fiberassign file
ACQTIME [1]	15.0	int	[s] acqusition image exposure time
SP2REDP [1]	5.879e-08	float	[mb] SP2 red pressure
SP8REDT [1]	139.99	float	[K] SP8 red temperature
POSONTGT [1]	4183	int	Number of positioners on target
SP9REDP [1]	1.039e-07	float	[mb] SP9 red pressure
SP5BLUP [1]	1.176e-07	float	[mb] SP5 blue pressure
SP3REDT [1]	140.01	float	[K] SP3 red temperature
SP2BLUP [1]	7.227e-08	float	[mb] SP2 blue pressure
KEEPSKY [1]	F	bool	DOS Control: keep sky mon. running
SP9BLUT [1]	162.99	float	[K] SP9 blue temperature
GUIDTIME [1]	5.0	float	[s] guider GFA exposure time
PMTRANS [1]	99.08	float	[%] PlateMaker GFAPROC transparency
BBKGMAXB [1]	0.4087930861702396	float
BBKGMAXA [1]	0.6506116222504337	float
BBKGMINC [1]	-0.5119155349796523	float
BBKGMAXC [1]	0.443700474442688	float
BBKGMAXD [1]	0.1595466623310998	float
BBKGMIND [1]	-0.4877611679234296	float
BBKGMINA [1]	-0.4375617018822571	float
BBKGMINB [1]	-0.5070931422048309	float
FVCTIME [1]	2.0	float	[s] FVC exposure time
USESPLITS [1]	T	bool	Exposure splits are allowed

Data: FITS image [float32, 4114x4128]

HDU1

EXTNAME = IVAR

2D image with the inverse variance (1/sigma^2) of the flat-fielded pixel values. The units are 1/electrons^2. The variance comprises read noise and Poisson noise from the signal (including Poisson noise from the dark current). The Poisson noise is based on a model of the illumination of the CCD to minimize the correlation between the noise realization in the pixel value and the estimated variance. The variance also comprise the noise of the calibration data (master bias and master dark).

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	4114	int
NAXIS2	4128	int
CHECKSUM	MOb9PMb6MMb6MMb6	str	HDU checksum updated 2022-01-29T00:45:32
DATASUM	3688631381	str	data unit checksum updated 2022-01-29T00:45:32

Data: FITS image [float32, 4114x4128]

HDU2

EXTNAME = MASK

2D image with CCD pixels bitmask values. Good pixels have a mask=0. See the bitmask documentation page for the definition of the bits.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	8	int	width of table in bytes
NAXIS2	4128	int	number of rows in table
CHECKSUM	GfAAId07Gd7AGd77	str	HDU checksum updated 2022-01-29T00:45:35
DATASUM	856031529	str	data unit checksum updated 2022-01-29T00:45:35

Data: FITS image [int16 (compressed), 4114x4128]

HDU3

EXTNAME = READNOISE

Flat-fielded read noise in electrons. Read noise abusively includes the Poisson noise from clock induced charges for some CCDs along with the Poisson noise from the dark current and the calibration frame uncertainties.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	4114	int
NAXIS2	4128	int
CHECKSUM	cRUgeQRecQRecQRe	str	HDU checksum updated 2022-01-29T00:45:38
DATASUM	2700029362	str	data unit checksum updated 2022-01-29T00:45:38

Data: FITS image [float32, 4114x4128]

HDU4

EXTNAME = FIBERMAP

Exposure fibermap trimmed to the fibers of this camera.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	369	int	length of dimension 1
NAXIS2	500	int	length of dimension 2
EXPID	68979	int
EXPFRAME	0	int
FLAVOR	science	str
SEQUENCE	Spectrographs	str
PURPOSE	Commissioning	str
PROGRAM	CALIB DESI-CALIB-00 LEDs only	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
NIGHT	20201220	int
TIMESYS	UTC	str
DATE-OBS	2020-12-20T22:24:15.672815	str
TIME-OBS	22:24:15.672815	str
MJD-OBS	59203.93351473	float
ST	20:57:41.340	str
EXPTIME	120.037	float
DELTARA [1]	0.0	float
DELTADEC [1]	0.0	float
VCCD	ON	str
VCCDON	2020-12-14T04:22:19.522101	str
VCCDSEC	583485.8	float
EQUINOX	2000.0	float
SPECGRPH	5	int
SPECID	9	int
FEEBOX	lbnl057	str
VESSEL	26	int
FEEVER	v20160312	str
FEEPOWER	ON	str
FEEDMASK	2134851391	int
FEECMASK	1048575	int
CCDTEMP	-135.8073	float
RADESYS	FK5	str
FILENAME	/exposures/desi/specs/20201220/00068979/sp9-00068979.fits.fz	str
DOSVER	trunk	str
OCSVER	1.2	float
CONSTVER	DESI:CURRENT	str
INIFILE	/data/msdos/dos_home/architectures/kpno/desi.ini	str
DAC3	-9.0002,-8.9919	str
CLOCK5	9.9999,0.0	str
BLDTIME	0.3522	float
CLOCK2	9.9999,0.0	str
BIASSECD	[2129:2192, 2130:4193]	str
PGAGAIN	3	int
OFFSET5	2.0,5.9964	str
BIASSECB	[2129:2192, 2:2065]	str
CLOCK4	9.9999,0.0	str
ORSECD	[2193:4249, 2098:2129]	str
DAC2	-9.0002,-8.9404	str
DAC6	5.9998,6.0437	str
CCDPREP	purge,clear	str
CASETEMP	59.322	float
DAC15	0.0,-0.0148	str
DAC16	39.9961,39.8706	str
DAC9	-25.0003,-24.6344	str
AMPSECB	[4114:2058, 1:2064]	str
DAC11	-25.0003,-24.5157	str
DELAYS	20, 20, 25, 40, 7, 3000, 7, 7, 7, 7	str
CLOCK13	9.9992,2.9993	str
PRESECD	[4250:4256, 2130:4193]	str
CDSPARMS	400, 400, 8, 2000	str
DATASECD	[2193:4249, 2130:4193]	str
CLOCK15	9.9992,2.9993	str
CLOCK18	9.0,0.9999	str
CLOCK8	9.9992,2.9993	str
OFFSET7	2.0,6.0122	str
DAC8	-25.0003,-24.946	str
CCDSECC	[1:2057, 2065:4128]	str
CLOCK14	9.9992,2.9993	str
CLOCK3	-2.0001,3.9999	str
DIGITIME	47.5948	float
CLOCK1	9.9999,0.0	str
PRRSECD	[2193:4249, 4194:4194]	str
CLOCK9	9.9992,2.9993	str
CCDNAME	CCDSM9R	str
DETSECB	[2058:4114, 1:2064]	str
CCDSECA	[1:2057, 1:2064]	str
DETSECD	[2058:4114, 2065:4128]	str
DATASECB	[2193:4249, 2:2065]	str
CRYOPRES [1]	1.166e-07	str
CAMERA	r5	str
PRRSECA	[8:2064, 1:1]	str
DAC1	-9.0002,-8.9507	str
PRESECC	[1:7, 2130:4193]	str
TRIMSECA	[8:2064, 2:2065]	str
TRIMSECD	[2193:4249, 2130:4193]	str
CCDCFG	default_lbnl_20190717.cfg	str
PRRSECB	[2193:4249, 1:1]	str
CLOCK12	9.9992,2.9993	str
CCDSECB	[2058:4114, 1:2064]	str
TRIMSECB	[2193:4249, 2:2065]	str
DATASECA	[8:2064, 2:2065]	str
DAC17	20.0008,12.3342	str
CLOCK17	9.0,0.9999	str
PRESECB	[4250:4256, 2:2065]	str
CLOCK0	9.9999,0.0	str
PRESECA	[1:7, 2:2065]	str
ORSECA	[8:2064, 2066:2097]	str
BIASSECC	[2065:2128, 2130:4193]	str
DETSECC	[1:2057, 2065:4128]	str
DAC14	0.0,-0.0148	str
DAC4	5.9998,6.0595	str
CLOCK16	9.9999,3.0	str
AMPSECA	[1:2057, 1:2064]	str
OFFSET4	2.0,6.0595	str
CCDSIZE	4194,4256	str
OFFSET2	0.4000000059604645,-8.9301	str
DAC13	0.0,-0.0148	str
CRYOTEMP [1]	163.02	float
OFFSET6	2.0,6.0437	str
CLOCK6	9.9999,0.0	str
DETSECA	[1:2057, 1:2064]	str
CCDTMING	default_lbnl_timing_20180905.txt	str
DETECTOR	M1-52	str
OFFSET3	0.4000000059604645,-8.9816	str
AMPSECC	[1:2057, 4128:2065]	str
CLOCK10	9.9992,2.9993	str
ORSECC	[8:2064, 2098:2129]	str
SETTINGS	detectors_sm_20191211.json	str
CPUTEMP	58.9629	float
OFFSET0	0.4000000059604645,-8.755	str
DAC12	0.0,0.0	str
DATASECC	[8:2064, 2130:4193]	str
AMPSECD	[4114:2058, 4128:2065]	str
DAC10	-25.0003,-25.0054	str
CLOCK7	-2.0001,3.9999	str
DAC0	-9.0002,-8.7653	str
CLOCK11	9.9992,2.9993	str
DAC7	5.9998,6.0122	str
OFFSET1	0.4000000059604645,-8.9507	str
DAC5	5.9998,5.9964	str
ORSECB	[2193:4249, 2066:2097]	str
CCDSECD	[2058:4114, 2065:4128]	str
PRRSECC	[8:2064, 4194:4194]	str
TRIMSECC	[8:2064, 2130:4193]	str
BIASSECA	[2065:2128, 2:2065]	str
REQTIME	120.0	float
OBSID	kp4m20201220t222415	str
PROCTYPE	RAW	str
PRODTYPE	image	str
GAINA	1.684	float
SATULEVA	33000.0	float
OSTEPA	0.6500495005602716	float
OMETHA	AVERAGE	str
OVERSCNA	1972.92976646288	float
OBSRDNA	3.218229918807175	float
SATUELEA	52249.58627327651	float
GAINB	1.655	float
SATULEVB	47000.0	float
OSTEPB	0.6179795354764792	float
OMETHB	AVERAGE	str
OVERSCNB	1975.23548556518	float
OBSRDNB	3.153470147761547	float
SATUELEB	74515.98527138963	float
GAINC	1.467	float
SATULEVC	65535.0	float
OSTEPC	0.5848174212296726	float
OMETHC	AVERAGE	str
OVERSCNC	1959.467167892971	float
OBSRDNC	2.894849081776217	float
SATUELEC	93265.30666470101	float
GAIND	1.509	float
SATULEVD	65535.0	float
OSTEPD	0.4709297982626595	float
OMETHD	AVERAGE	str
OVERSCND	1992.393350767962	float
OBSRDND	2.694583892275785	float
SATUELED	95885.79343369114	float
FIBERMIN [1]	2500	int
LONGSTRN	OGIP 1.0	str
MODULE	CI	str
FRAMES [1]	None	Unknown
COSMSPLT	F	bool
MAXSPLIT	0	int
SPLITIDS [1]	65741	str
OBSTYPE	FLAT	str
MANIFEST	F	bool
OBJECT		str
SEQID [1]	3 requests	str
SEQNUM	2	int
SEQTOT [1]	3	int
OPENSHUT	None	Unknown
CAMSHUT	open	str
WHITESPT [1]	T	bool
ZENITH [1]	F	bool
SEANNEX [1]	F	bool
BEYONDP [1]	F	bool
FIDUCIAL [1]	off	str
AIRMASS [1]	1.521306	float
FOCUS [1]	1163.9,-689.8,370.4,13.8,24.2,-0.0	str
TRUSTEMP [1]	13.267	float
PMIRTEMP [1]	7.35	float
PMREADY [1]	F	bool
PMCOVER [1]	open	str
PMCOOL [1]	on	str
DOMSHUTU [1]	not open	str
DOMSHUTL [1]	not open	str
DOMLIGHH [1]	off	str
DOMLIGHL [1]	off	str
DOMEAZ [1]	253.289	float
DOMINPOS [1]	F	bool
GUIDOFFR [1]	0.0	float
GUIDOFFD [1]	-0.0	float
MOONDEC [1]	-9.830944	float
MOONRA [1]	350.511461	float
MOUNTAZ [1]	73.49407	float
MOUNTDEC [1]	31.962703	float
MOUNTEL [1]	41.035778	float
MOUNTHA [1]	-58.479517	float
INCTRL [1]	F	bool
INPOS [1]	T	bool
MNTOFFD [1]	-0.0	float
MNTOFFR [1]	-0.0	float
PARALLAC [1]	-73.492813	float
SKYDEC [1]	31.962703	float
SKYRA [1]	12.901561	float
TARGTDEC [1]	31.963299	float
TARGTRA [1]	6.305086	float
TARGTAZ [1]	75.558672	float
TARGTEL [1]	46.429343	float
TRGTOFFD [1]	0.0	float
TRGTOFFR [1]	0.0	float
ZD [1]	48.964222	float
TCSST [1]	20:57:41.291	str
TCSMJD [1]	59203.933945	float
ADCCORR	F	bool
ADC1PHI [1]	114.980003	float
ADC2PHI [1]	162.869907	float
ADC1HOME [1]	F	bool
ADC2HOME [1]	F	bool
ADC1NREV [1]	0.0	float
ADC2NREV [1]	-1.0	float
ADC1STAT [1]	STOPPED	str
ADC2STAT [1]	STOPPED	str
HEXPOS [1]	1163.9,-689.8,370.4,13.8,24.2,-0.0	str
HEXTRIM [1]	0.0,0.0,0.0,0.0,0.0,0.0	str
ROTOFFST [1]	0.0	float
ROTENBLD [1]	T	bool
ROTRATE [1]	0.0	float
RESETROT	F	bool
GUIDMODE	catalog	str
USEAOS [1]	F	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 [1]	-18.2	float
TAIRFLOW [1]	1.121	float
TAIRITMP [1]	10.5	float
TAIROTMP [1]	5.5	float
TAIRTEMP [1]	11.86	float
TCASITMP [1]	0.0	float
TCASOTMP [1]	9.6	float
TCSITEMP [1]	7.4	float
TCSOTEMP [1]	10.2	float
TCIBTEMP [1]	0.0	float
TCIMTEMP [1]	0.0	float
TCITTEMP [1]	0.0	float
TCOSTEMP [1]	0.0	float
TCOWTEMP [1]	0.0	float
TDBTEMP [1]	7.4	float
TFLOWIN [1]	7.7	float
TFLOWOUT [1]	8.3	float
TGLYCOLI [1]	-1.8	float
TGLYCOLO [1]	0.0	float
THINGES [1]	12.9	float
THINGEW [1]	11.7	float
TPMAVERT [1]	7.304	float
TPMDESIT [1]	7.0	float
TPMEIBT [1]	7.3	float
TPMEITT [1]	7.3	float
TPMEOBT [1]	7.4	float
TPMEOTT [1]	7.2	float
TPMNIBT [1]	7.4	float
TPMNITT [1]	7.3	float
TPMNOBT [1]	7.7	float
TPMNOTT [1]	7.6	float
TPMRTDT [1]	6.96	float
TPMSIBT [1]	7.4	float
TPMSITT [1]	7.0	float
TPMSOBT [1]	7.4	float
TPMSOTT [1]	7.2	float
TPMSTAT [1]	soft air	str
TPMWIBT [1]	7.2	float
TPMWITT [1]	7.1	float
TPMWOBT [1]	7.6	float
TPMWOTT [1]	8.1	float
TPCITEMP [1]	7.7	float
TPCOTEMP [1]	7.7	float
TPR1HUM [1]	0.0	float
TPR1TEMP [1]	0.0	float
TPR2HUM [1]	0.0	float
TPR2TEMP [1]	0.0	float
TSERVO [1]	7.0	float
TTRSTEMP [1]	13.2	float
TTRWTEMP [1]	13.4	float
TTRUETBT [1]	-4.8	float
TTRUETTT [1]	11.5	float
TTRUNTBT [1]	10.9	float
TTRUNTTT [1]	11.8	float
TTRUSTBT [1]	11.1	float
TTRUSTST [1]	10.8	float
TTRUSTTT [1]	12.4	float
TTRUTSBT [1]	13.6	float
TTRUTSMT [1]	13.7	float
TTRUTSTT [1]	12.5	float
TTRUWTBT [1]	10.9	float
TTRUWTTT [1]	11.6	float
ALARM [1]	F	bool
ALARM-ON [1]	F	bool
BATTERY [1]	100.0	float
SECLEFT [1]	5772.0	float
UPSSTAT [1]	System Normal - On Line(7)	str
INAMPS [1]	64.3	float
OUTWATTS [1]	4500.0,6800.0,4100.0	str
COMPDEW [1]	-12.0	float
COMPHUM [1]	7.8	float
COMPAMB [1]	19.4	float
COMPTEMP [1]	24.9	float
DEWPOINT [1]	5.7	float
HUMIDITY [1]	7.0	float
PRESSURE [1]	794.7	float
OUTTEMP [1]	0.0	float
WINDDIR [1]	82.0	float
WINDSPD [1]	23.3	float
GUST [1]	18.1	float
AMNIENTN [1]	13.3	float
CFLOOR [1]	8.1	float
NWALLIN [1]	13.6	float
NWALLOUT [1]	8.8	float
WWALLIN [1]	12.8	float
WWALLOUT [1]	9.4	float
AMBIENTS [1]	14.6	float
FLOOR [1]	12.3	float
EWALLCMP [1]	10.2	float
EWALLCOU [1]	9.5	float
ROOF [1]	10.0	float
ROOFAMB [1]	9.9	float
DOMEBLOW [1]	12.1	float
DOMEBUP [1]	12.5	float
DOMELLOW [1]	14.4	float
DOMELUP [1]	19.3	float
DOMERLOW [1]	12.3	float
DOMERUP [1]	12.8	float
PLATFORM [1]	15.3	float
SHACKC [1]	15.2	float
SHACKW [1]	13.2	float
STAIRSL [1]	12.6	float
STAIRSM [1]	13.3	float
STAIRSU [1]	13.6	float
TELBASE [1]	8.5	float
UTILWALL [1]	11.6	float
UTILROOM [1]	12.4	float
EXCLUDED		str
CHECKSUM	oLYrpJYooJYooJYo	str	HDU checksum updated 2022-01-29T00:45:38
DATASUM	1239496881	str	data unit checksum updated 2022-01-29T00:45:38
MOONSEP [1]	53.303	float
TCSMFDEC [1]	2	int
TRANSPAR [1]	None	Unknown
TCSGRA [1]	0.15	float
SEEING [1]	None	float
TCSKDEC [1]	0.01 0.04 0.01	str
TCSPIDEC [1]	0.9,0.0,0.0,0.0	str
TCSPIRA [1]	0.9,0.0,0.0,0.0	str
SEQSTART [1]	2021-07-07T00:53:59.919044	str
TCSMFRA [1]	2	int
NTSSURVY [1]	na	str
SUNRA [1]	106.440846	float
SUNDEC [1]	22.575648	float
TCSGDEC [1]	0.15	float
TCSKRA [1]	0.01 0.04 0.01	str
SP6REDT [1]	139.99	float
ETCTEFF [1]	188.90274	float
USEDONUT [1]	T	bool
SP3REDP [1]	7.09e-08	float
SP2NIRP [1]	7.628e-08	float
TGFAPROC [1]	4.7487	float
SP6NIRT [1]	139.99	float
GUIEXPID [1]	91269	int
SP9NIRP [1]	4.982e-08	float
SP1REDP [1]	7.756e-08	float
GOALTIME [1]	180.0	float
GUIDECAM [1]	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str
REQADC [1]	348.89,10.34	str
SP8REDP [1]	5.299e-08	float
FIELDROT [1]	-0.0491761627957582	float
SP6BLUP [1]	7.73e-08	float
USEPOS [1]	T	bool
FSFRMNUM [1]	4	int
SKYTIME [1]	60.0	float
FGFRMNUM [1]	53	int
ETCREAL [1]	359.955383	float
GSGUIDE5 [1]	(603.93,717.73),(852.56,266.71)	str
SP2BLUT [1]	162.99	float
SCNDMTL [1]	DESIROOT/target/catalogs/mtl/1.1.1/mtl/main/secondary/bright	str
SP8NIRT [1]	139.99	float
POSMVALL [1]	T	bool
SP0BLUP [1]	8.506e-08	float
SP6REDP [1]	6.497e-08	float
USEFOCUS [1]	T	bool
SP9REDT [1]	140.13	float
SP4NIRP [1]	6.464e-08	float
FA_PLAN [1]	2022-07-01T00:00:00.000	str
POSCVFRC [1]	0.6457	float
SP8BLUP [1]	8.51399999999999e-08	float
POSONFRC [1]	1.0	float
GOALTYPE [1]	BRIGHT	str
SP7REDP [1]	4.929e-08	float
USEILLUM [1]	T	bool
SCND [1]	DESIROOT/target/catalogs/dr9/1.1.1/targets/main/secondary/bright/targets-bright-secondary.fits	str
STOPFOCS [1]	T	bool
IFFRMNUM [1]	1	int
SP9NIRT [1]	139.99	float
STOPGUDR [1]	T	bool
POSENABL [1]	4183	int
SP5NIRP [1]	9.685e-08	float
COORDFIL [1]	coordinates-00091269.fits	str
ETCFRACP [1]	0.598449	float
GSGUIDE7 [1]	(802.42,621.97),(808.88,951.00)	str
REACQUIR [1]	F	bool
ESTTIME [1]	685.169	float
SPLITEXP [1]	F	bool
MINTFRAC [1]	0.85	float
SP1BLUT [1]	162.97	float
POSTOLER [1]	0.005	float
SBPROF [1]	BGS	str
SP1BLUP [1]	8.436e-08	float
TILEID [1]	21088	int
FIBASSGN [1]	/data/tiles/SVN_tiles/021/fiberassign-021088.fits.gz	str
TARG [1]	DESIROOT/target/catalogs/dr9/1.1.1/targets/main/resolve/bright	str
FAARGS [1]	–doclean n –dr dr9 –dtver 1.1.1 –gaiadr gaiadr2 –goaltime 180.0 –ha -2.8 –hdr_faprgrm bright –hdr_survey main –log_stdout False –margin_gfa 0.4 –margin_petal 0.4 –margin_pos 0.05 –mintfrac 0.85 –mtltime 2021-05-30T15:42:44+00:00 –pmcorr n –pmtime_utc_str 2021-05-30T15:42:44+00:00 –program BRIGHT –rundate 2021-05-30T15:42:44+00:00 –sbprof BGS –sky_per_petal 40 –sky_per_slitblock 1 –standards_per_petal 10 –steps tiles,sky,gfa,targ,scnd,too,fa,zip,move,qa –survey main –tiledec 11.479 –tileid 21088 –tilera 202.544	str
CONVERGD [1]	F	bool
ETCTRANS [1]	0.873803	float
OBSCON [1]	DARK|GRAY|BRIGHT|BACKUP	str
POSRMS [1]	0.0046	float
SP5BLUT [1]	163.02	float
SP7NIRP [1]	4.958e-08	float
POSFRACT [1]	0.95	float
ETCTHRUP [1]	0.930508	float
POSCNVGD [1]	2701	bool
SP0NIRP [1]	6.295e-08	float
SP6NIRP [1]	2.749e-07	float
MTLTIME [1]	2021-05-30T15:42:44+00:00	str
POSDISAB [1]	798	int
EBVFAC [1]	1.06121245388856	float
USEXSRVR [1]	T	bool
FAPRGRM [1]	bright	str
FOCUSCAM [1]	FOCUS1,FOCUS4,FOCUS6,FOCUS9	str
NTSPROG [1]	BRIGHT	str
SP1REDT [1]	139.99	float
FOCSTIME [1]	60.0	float
GSGUIDE8 [1]	(923.64,1926.73),(806.21,1893.13)	str
FAOUTDIR [1]	/global/cscratch1/sd/raichoor/holding_pen/main-pass0-20210530-nobackup-5.0.0/021/	str
ACTTEFF [1]	188.90274	float
PMTIME [1]	2021-05-30T15:42:44+00:00	str
PETALS [1]	PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9	str
RUNDATE [1]	2021-05-30T15:42:44+00:00	str
SP0REDT [1]	139.99	float
MAXTIME [1]	5400.0	float
FA_RUN [1]	2021-05-30T15:42:44+00:00	str
SP0NIRT [1]	139.99	float
USEFID [1]	T	bool
ISFRMNUM [1]	5	int
GSGUIDE3 [1]	(586.04,1814.56),(175.31,1315.13)	str
SP3NIRP [1]	4.205e-08	float
USEETC [1]	T	bool
MTL [1]	DESIROOT/target/catalogs/mtl/1.1.1/mtl/main/bright	str
SKYCAM [1]	SKYCAM0,SKYCAM1	str
SP0REDP [1]	5.012e-08	float
REQDEC [1]	11.479	float
ETCFRACB [1]	0.190657	float
SVNMTL [1]	unknown	str
SP7REDT [1]	139.99	float
SP7NIRT [1]	139.99	float
SLEWANGL [1]	5.812	float
ETCSKY [1]	1.373246	float
FASCRIPT [1]	/global/common/software/desi/cori/desiconda/20200801-1.4.0-spec/code/fiberassign/5.0.0/bin/fba_launch	str
SP5NIRT [1]	140.03	float
ETCFRACE [1]	0.427971	float
USESPCTR [1]	T	bool
SP2REDT [1]	139.99	float
ETCPREV [1]	0.0	float
FA_VER [1]	5.0.0	str
SKYEXPID [1]	91268	int
USEFVC [1]	T	bool
PMTRANSP [1]	101.86	float
STOPSKY [1]	T	bool
DESIROOT [1]	/global/cfs/cdirs/desi	str
KEEPFOCS [1]	F	bool
SP1NIRT [1]	139.99	float
USEOPENL [1]	T	bool
SP4BLUT [1]	162.99	float
SKYLEVEL [1]	1.359	float
USEGUIDR [1]	T	bool
FAFLAVOR [1]	mainbright	str
VISITIDS [1]	91269	str
TOO [1]	DESIROOT/target/catalogs/mtl/1.1.1/mtl/main/ToO/ToO.ecsv	str
SKYSUPP [1]	DESIROOT/target/catalogs/gaiadr2/1.1.1/skies-supp	str
SP4BLUP [1]	6.4e-08	float
SP1NIRP [1]	6.617e-08	float
SP4REDP [1]	5.177e-08	float
FA_HA [1]	-2.8	float
ETCTHRUB [1]	0.877517	float
USESPLIT [1]	T	bool
SP8BLUT [1]	162.97	float
SIMGFAP [1]	F	bool
SP4NIRT [1]	139.99	float
REQTEFF [1]	180.0	float
SP5REDP [1]	6.023e-08	float
SP7BLUT [1]	162.97	float
ETCTHRUE [1]	0.907236	float
SP3BLUP [1]	9.573e-08	float
PMCORR [1]	n	str
POSITER [1]	1	int
REQRA [1]	202.544	float
SP3BLUT [1]	162.99	float
SP8NIRP [1]	5.185e-08	float
ACQFWHM [1]	1.091989	float
FFFRMNUM [1]	6	int
ETCSPLIT [1]	1	int
IGFRMNUM [1]	10	int
USEROTAT [1]	T	bool
SURVEY [1]	main	str
SP9BLUP [1]	1.21e-07	float
FIELDNUM [1]	0	int
SP0BLUT [1]	162.97	float
SP2NIRT [1]	139.99	float
KEEPGUDR [1]	F	bool
SP5REDT [1]	140.03	float
ACQCAM [1]	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str
SP7BLUP [1]	1.04e-07	float
TILERA [1]	202.544	float
PMSEEING [1]	1.12	float
SKY [1]	DESIROOT/target/catalogs/dr9/1.1.1/skies	str
GFA [1]	DESIROOT/target/catalogs/dr9/1.1.1/gfas	str
TOTTEFF [1]	187.1934	float
TNFSPROC [1]	11.8836	float
ETCPROF [1]	BGS	str
SIMGFACQ [1]	F	bool
BACKLIT [1]	off	str
FA_SURV [1]	main	str
SP3NIRT [1]	139.99	float
ARCHIVE [1]	/exposures/desi/20210605/00091269/guide-00091269.fits.fz	str
USESKY [1]	T	bool
POSCYCLE [1]	1	int
FOCEXPID [1]	91269	int
SP4REDT [1]	140.06	float
SP6BLUT [1]	162.97	float
ETCVERS [1]	0.1.12-5-g205dbce	str
GUIDEFIL [1]	guide-00091269.fits.fz	str
ETCSEENG [1]	1.092	float
TILEDEC [1]	11.479	float
MINTIME [1]	180.0	float
GSGUIDE2 [1]	(183.31,1907.84),(667.21,1409.44)	str
ACQTIME [1]	15.0	int
SP2REDP [1]	5.879e-08	float
SP8REDT [1]	139.99	float
POSONTGT [1]	4183	int
SVNDM [1]	136470	str
SP9REDP [1]	1.039e-07	float
SP5BLUP [1]	1.176e-07	float
SP3REDT [1]	140.01	float
SP2BLUP [1]	7.227e-08	float
KEEPSKY [1]	F	bool
SP9BLUT [1]	162.99	float
GUIDTIME [1]	5.0	float
GSGUIDE0 [1]	(620.31,759.74),(928.19,1625.64)	str
PMTRANS [1]	99.08	float
BBKGMAXB [1]	0.4087930861702396	float
BBKGMAXA [1]	0.6506116222504337	float
BBKGMINC [1]	-0.5119155349796523	float
BBKGMAXC [1]	0.443700474442688	float
BBKGMAXD [1]	0.1595466623310998	float
BBKGMIND [1]	-0.4877611679234296	float
BBKGMINA [1]	-0.4375617018822571	float
BBKGMINB [1]	-0.5070931422048309	float
FVCTIME [1]	2.0	float
SCTARG [1]	MWS_WD,MWS_NEARBY,MWS_BHB,MWS_MAIN_BROAD,MWS_MAIN_FAINT,BACKUP_FAINT,BACKUP_VERY_FAINT,MWS_CALIB,BACKUP_CALIB,MWS_MAIN_CLUSTER_SV,MWS_RRLYR,WD_BINARIES_BRIGHT,WD_BINARIES_DARK	str
SCSTD [1]	STD_WD,STD_BRIGHT	str
TARG2 [1]	DESIROOT/target/catalogs/gaiadr2/0.50.0/targets/sv1/resolve/supp	str
USESPLITS [1]	T	bool
SIMGFAQ [1]	F	bool
DR [1]	dr9	str
DTVER [1]	0.50.0	str
M31CEN [1]	n	str
PRIORITY [1]	default	str
SHFTFOCS [1]	500.0	float
ROLE [1]	GUIDERMAN	str
TARG3 [1]	DESIROOT/target/catalogs/dr9/0.51.0/targets/sv1/resolve/bright	str
FA_M_GFA [1]	0.4	float
FA_M_PET [1]	0.4	float
FA_M_POS [1]	0.05	float

Required Data Table Columns

Name	Type	Units	Description
TARGETID	int64		Unique DESI target ID
PETAL_LOC	int16		Petal location [0-9]
DEVICE_LOC	int32		Device location on focal plane [0-523]
LOCATION	int64		Location on the focal plane PETAL_LOC*1000 + DEVICE_LOC
FIBER	int32		Fiber ID on the CCDs [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	10**-3 arcsec yr-1	proper motion in the +RA direction (already including cos(dec))
PMDEC	float32	10**-3 arcsec 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
BRICKNAME	char[8]		Brick name from tractor input
BRICKID	int64		Brick ID from tractor input
BRICK_OBJID	int64		Imaging Surveys OBJID on that brick
MORPHTYPE	char[4]		Imaging Surveys morphological type from Tractor
EBV	float32	mag	Galactic extinction E(B-V) reddening from SFD98
FLUX_G	float32	nanomaggies	Flux in the Legacy Survey g-band (AB)
FLUX_R	float32	nanomaggies	Flux in the Legacy Survey r-band (AB)
FLUX_Z	float32	nanomaggies	Flux in the Legacy Survey z-band (AB)
FLUX_W1	float32	nanomaggies	WISE flux in W1 (AB)
FLUX_W2	float32	nanomaggies	WISE flux in W2 (AB)
FLUX_IVAR_G	float32	nanomaggies**-2	Inverse variance of FLUX_G (AB)
FLUX_IVAR_R	float32	nanomaggies**-2	Inverse variance of FLUX_R (AB)
FLUX_IVAR_Z	float32	nanomaggies**-2	Inverse variance of FLUX_Z (AB)
FLUX_IVAR_W1	float32	nanomaggies**-2	Inverse variance of FLUX_W1 (AB)
FLUX_IVAR_W2	float32	nanomaggies**-2	Inverse variance of FLUX_W2 (AB)
FIBERFLUX_G	float32	nanomaggies	Predicted g-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing
FIBERFLUX_R	float32	nanomaggies	Predicted r-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing
FIBERFLUX_Z	float32	nanomaggies	Predicted z-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing
FIBERTOTFLUX_G	float32	nanomaggies	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	nanomaggies	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	nanomaggies	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
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	10**-3 arcsec	Reference catalog parallax
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
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
SCND_TARGET [1]	int64		Target selection bitmask for secondary programs
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
SV1_MWS_TARGET [1]	int64		MWS (bright time program) target selection bitmask for SV1
SV1_BGS_TARGET [1]	int64		BGS (bright time program) target selection bitmask for SV1
SV1_SCND_TARGET [1]	int64		Secondary target selection bitmask for SV1
SV1_DESI_TARGET [1]	int64		DESI (dark time program) target selection bitmask for SV1
SV3_MWS_TARGET [1]	int64		MWS (bright time program) target selection bitmask for SV3
SV3_SCND_TARGET [1]	int64		Secondary 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
CMX_TARGET [1]	int64		Target selection bitmask for commissioning
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
SV2_DESI_TARGET [1]	int64		DESI (dark time program) target selection bitmask for SV2
SV2_MWS_TARGET [1]	int64		MWS (bright time program) target selection bitmask for SV2

[1] (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346,347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394,395,396,397,398,399,400,401,402,403,404,405,406,407,408,409,410,411,412,413,414,415,416,417,418,419,420,421,422,423,424,425,426,427,428,429,430,431,432,433,434,435,436,437,438,439,440,441,442,443,444,445,446,447,448,449,450,451,452,453,454,455,456,457,458,459,460,461,462,463,464,465,466,467,468,469,470,471,472,473,474,475,476,477,478,479,480,481,482,483,484,485,486,487,488,489,490,491,492,493,494,495,496,497,498,499,500,501,502,503,504,505,506,507,508,509,510,511,512,513,514,515,516,517,518,519,520,521,522,523,524,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566,567,568,569,570,571,572,573,574,575,576,577,578,579,580,581,582,583,584,585,586,587,588,589,590,591,592,593,594,595,596,597,598,599,600,601,602,603,604,605,606,607,608,609,610,611,612,613,614,615,616,617,618,619,620,621,622,623,624,625,626,627,628,629,630,631,632,633,634,635,636,637,638,639,640,641,642,643,644,645,646,647,648,649,650,651,652,653,654,655,656,657,658,659,660,661,662,663,664,665,666,667,668,669,670,671,672,673,674,675,676,677,678,679,680,681,682,683,684,685,686,687,688,689,690,691,692,693,694,695,696,697,698,699,700,701,702,703,704,705,706,707,708,709,710,711,712,713,714,715,716,717,718,719,720,721,722,723,724,725,726,727,728,729,730,731,732,733,734,735,736,737,738,739,740,741,742,743,744,745,746,747,748,749,750,751,752,753,754,755,756,757,758,759,760,761,762,763,764,765,766,767,768,769,770,771,772,773,774,775,776,777,778)

Optional

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).