frame-CAMERA-EXPID.fits

Summary:

Frame files contain the raw extracted electrons from DESI data, without any further calibration.

Naming Convention:

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

Regex:

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

File Type:

FITS, 70 MB

Contents

Number	EXTNAME	Type	Contents
HDU0	FLUX	IMAGE	Extracted flux in electrons per Angstrom
HDU1	IVAR	IMAGE	Inverse variance of the extracted flux
HDU2	MASK	IMAGE	Bad value mask; 0=good
HDU3	WAVELENGTH	IMAGE	Wavelength grid of the extraction (Angstrom)
HDU4	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 extracted flux[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).

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2326	int
NAXIS2	500	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	WdnaWcnXWcnaWcnU	str	HDU checksum updated 2022-01-29T01:11:31
DATASUM	3935488568	str	data unit checksum updated 2022-01-29T01:11:31
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	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
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/20201220/00068979/psf-r5-00068979.fits	str	Input sp
IN_IMG	SPECPROD/preproc/20201220/00068979/preproc-r5-00068979.fits	str
ORIG_PSF	SPECPROD/calibnight/20201220/psfnight-r5-20201220.fits	str
BUNIT	electron/Angstrom	str
TCSPIRA [1]	1.0,0.0,0.0,0.0	str	TCS PI settings (P, I (gain, error window, satu
SEQSTART [1]	2021-02-24T01:22:15.381414	str	Start time of sequence processing
TCSPIDEC [1]	1.0,0.0,0.0,0.0	str	TCS PI settings (P, I (gain, error window, satu
MOONSEP [1]	8.81573236983626	float	[deg] Moon Separation
TCSKRA [1]	0.3 0.003 0.00003	str	TCS Kalman (RA)
TCSMFRA [1]	1	int	TCS moving filter length (RA)
TCSGRA [1]	0.3	float	TCS simple gain (RA)
TCSKDEC [1]	0.3 0.003 0.00003	str	TCS Kalman (dec)
TCSGDEC [1]	0.3	float	TCS simple gain (dec)
TCSMFDEC [1]	1	int	TCS moving filter length (dec)
FOCSTIME [1]	60.0	float	[s] focus GFA exposure time
KEEPSKY [1]	F	bool	DOS Control: keep sky mon. running
PMTRANS [1]	94.62	float	[%] PlateMaker GFAPROC transparency
USESPCTR [1]	T	bool	DOS Control: use spectrographs
SUNRA [1]	12.514241	float	[deg] Sun RA at start of exposure
SP3BLUP [1]	8.133e-08	float	[mb] SP3 blue pressure
BACKLIT [1]	off	str	Fibers are backlit if True
SP6REDT [1]	139.94	float	[K] SP6 red temperature
USEILLUM [1]	T	bool	DOS Control: use illuminator
SP8REDP [1]	3.96e-08	float	[mb] SP8 red pressure
NTSSURVY [1]	na	str	NTS survey name
POSCYCLE [1]	1	int	Number of current iteration
POSTOLER [1]	0.005	float	Positioning Control: in_position tolerance (mm)
SP7REDT [1]	140.01	float	[K] SP7 red temperature
SP0NIRT [1]	139.89	float	[K] SP0 NIR temperature
SP7NIRP [1]	4.311e-08	float	[mb] SP7 NIR pressure
SP0NIRP [1]	5.998e-08	float	[mb] SP0 NIR pressure
SP6NIRT [1]	139.89	float	[K] SP6 NIR temperature
SP1BLUT [1]	163.02	float	[K] SP1 blue temperature
SP3REDT [1]	139.99	float	[K] SP3 red temperature
SP4NIRP [1]	6.683e-08	float	[mb] SP4 NIR pressure
SP5NIRT [1]	139.94	float	[K] SP5 NIR temperature
TGFAPROC [1]	9.0024	float	[s] PlateMaker GFAPROC processing time
SP7BLUP [1]	9.947e-08	float	[mb] SP7 blue pressure
SKYLEVEL [1]	1.364	float	counts?] ETC sky level
SP0REDT [1]	139.96	float	[K] SP0 red temperature
USEOPENL [1]	T	bool	DOS Control: use open loop move
SP0BLUT [1]	163.02	float	[K] SP0 blue temperature
SP2BLUP [1]	8.492e-08	float	[mb] SP2 blue pressure
SP0BLUP [1]	8.499e-08	float	[mb] SP0 blue pressure
POSCNVGD [1]	F	bool	Number of positioners converged
USEFOCUS [1]	T	bool	DOS Control: use focus
ACQCAM [1]	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str	Acquisition cameras used
GUIEXPID [1]	83129	int	Guider exposure id at start of spectro exp.
SP3NIRP [1]	3.566e-08	float	[mb] SP3 NIR pressure
SP5BLUT [1]	162.99	float	[K] SP5 blue temperature
SP9NIRP [1]	5.211e-08	float	[mb] SP9 NIR pressure
USEFVC [1]	T	bool	DOS Control: use fvc
USEGUIDR [1]	T	bool	DOS Control: use guider
IGFRMNUM [1]	14	int	Guider frame number at start of spectro exp.
FGFRMNUM [1]	45	int	Guider frame number at end of spectro exp.
SP4BLUP [1]	6.248e-08	float	[mb] SP4 blue pressure
SP5BLUP [1]	1.115e-07	float	[mb] SP5 blue pressure
SP1REDT [1]	139.89	float	[K] SP1 red temperature
SP9BLUT [1]	163.02	float	[K] SP9 blue temperature
IFFRMNUM [1]	1	int	Focus frame number at start of spectro exp.
SP1NIRT [1]	139.89	float	[K] SP1 NIR temperature
USEFID [1]	T	bool	DOS Control: use fiducials
REQDEC [1]	32.375	float	[deg] Requested declination (observer input)
SP9REDP [1]	5.108e-08	float	[mb] SP9 red pressure
SP2REDP [1]	6.944e-08	float	[mb] SP2 red pressure
USESKY [1]	T	bool	DOS Control: use Sky Monitor
SP6NIRP [1]	2.809e-07	float	[mb] SP6 NIR pressure
SP4NIRT [1]	139.94	float	[K] SP4 NIR temperature
USEPOS [1]	T	bool	Fiber positioner data available if true
SP2BLUT [1]	163.02	float	[K] SP2 blue temperature
ISFRMNUM [1]	0	int	Sky frame number at start of spectro exp.
FOCEXPID [1]	83129	int	Focus exposure id at start of spectro exp.
POSENABL [1]	4056	int	Number of enabled positioners
SUNDEC [1]	5.365754	float	[deg] Sun declination at start of exposure
TILEDEC [1]	32.375	float	DEC of tile given in fiberassign file
POSFRACT [1]	0.95	float
SP9NIRT [1]	139.86	float	[K] SP9 NIR temperature
SPLITEXP [1]	F	bool	Split exposure part of a visit
SP8REDT [1]	139.94	float	[K] SP8 red temperature
SKYEXPID [1]	83129	int	Sky exposure id at start of spectro exp.
SP4REDT [1]	140.01	float	[K] SP4 red temperature
TILERA [1]	127.7	float	RA of tile given in fiberassign file
KEEPGUDR [1]	F	bool	DOS Control: keep guider running
SP3BLUT [1]	163.02	float	[K] SP3 blue temperature
SP0REDP [1]	6.295e-08	float	[mb] SP0 red pressure
SP6BLUT [1]	163.02	float	[K] SP6 blue temperature
SIMGFAP [1]	F	bool	DOS Control: simulate GFAPROC
TILEID [1]	80873	int	DESI Tile ID
SP1NIRP [1]	4.585e-08	float	[mb] SP1 NIR pressure
USEDONUT [1]	T	bool	DOS Control: use donuts
FIBASSGN [1]	/data/tiles/SVN_tiles/080/fiberassign-080873.fits.gz	str	Fiber assign
SP8NIRT [1]	139.99	float	[K] SP8 NIR temperature
SP2NIRT [1]	139.89	float	[K] SP2 NIR temperature
KEEPFOCS [1]	F	bool	DOS Control: keep focus running
VISITIDS [1]	83129	str	List of expids for a visit (same tile)
FFFRMNUM [1]	5	int	Focus frame number at end of spectro exp.
SP8BLUP [1]	7.959e-08	float	[mb] SP8 blue pressure
ACTTEFF [1]	112.2149	float	[s] Actual effective exposure time
POSMVALL [1]	T	bool	Positioning Control: move all positioners
SP6BLUP [1]	6.3e-08	float	[mb] SP6 blue pressure
GUIDTIME [1]	5.0	float	[s] guider GFA exposure time
SEEING [1]	1.3508	float	[arcsec] ETC seeing
SP3REDP [1]	7.919e-08	float	[mb] SP3 red pressure
USEETC [1]	T	bool	ETC data available if true
SP5REDT [1]	139.99	float	[K] SP5 red temperature
SP6REDP [1]	6.337e-08	float	[mb] SP6 red pressure
SP8NIRP [1]	4.827e-08	float	[mb] SP8 NIR pressure
USEROTAT [1]	T	bool	DOS Control: use rotator
SP2NIRP [1]	6.984e-08	float	[mb] SP2 NIR pressure
POSONFRC [1]	0.4768	float	Fraction of positioners on target
PETALS [1]	PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9	str	Participating petals
STOPSKY [1]	T	bool	DOS Control: stop sky monitor
SP7REDP [1]	6.038e-08	float	[mb] SP7 red pressure
GUIDECAM [1]	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str	Guide cameras used for t
SP8BLUT [1]	162.9	float	[K] SP8 blue temperature
TNFSPROC [1]	25.9483	float	[s] PlateMaker NFSPROC processing time
HELIOCOR [1]	0.9999087550219705	float
ACQTIME [1]	15.0	float	[s] acqusition image exposure time
REQADC [1]	92.63,97.66	str	[deg] requested ADC angles
SP4BLUT [1]	163.02	float	[K] SP4 blue temperature
SP7NIRT [1]	139.96	float	[K] SP7 NIR temperature
SP9REDT [1]	139.99	float	[K] SP9 red temperature
POSRMS [1]	0.0076	float	[micron] RMS of positioner accuracy
REACQUIR [1]	F	bool	DOS Control: reacquire same files
SP5REDP [1]	5.487e-08	float	[mb] SP5 red pressure
STOPGUDR [1]	T	bool	DOS Control: stop guider
POSONTGT [1]	1934	int	Number of positioners on target
FOCUSCAM [1]	FOCUS1,FOCUS4,FOCUS6,FOCUS9	str	Focus cameras used for this exposure
SP5NIRP [1]	6.003e-08	float	[mb] SP5 NIR pressure
SP1BLUP [1]	7.992e-08	float	[mb] SP1 blue pressure
PMSEEING [1]	1.33	float	[arcsec] PlateMaker GFAPROC seeing
SP9BLUP [1]	1.231e-07	float	[mb] SP9 blue pressure
SKYTIME [1]	60	float	[s] sky camera exposure time (acquisition)
POSITER [1]	1	int	Positioning Control: max. number of pos. cycles
USESPLITS [1]	T	bool	Exposure splits are allowed
SP1REDP [1]	5.506e-08	float	[mb] SP1 red pressure
SP3NIRT [1]	140.01	float	[K] SP3 NIR temperature
SP2REDT [1]	139.96	float	[K] SP2 red temperature
SKYCAM [1]	SKYCAM0,SKYCAM1	str	Sky cameras used for this exposure
SP4REDP [1]	4.945e-08	float	[mb] SP4 red pressure
SP7BLUT [1]	163.02	float	[K] SP7 blue temperature
FSFRMNUM [1]	3	int	Sky frame number at end of spectro exp.
SIMGFACQ [1]	F	bool
REQRA [1]	127.7	float	[deg] Requested right ascension (observer input
USEXSRVR [1]	T	bool	DOS Control: use exposure server
POSDISAB [1]	925	int	Number of disabled positioners
STOPFOCS [1]	T	bool	DOS Control: stop focus
REQTEFF [1]	1000.0	float	[s] Requested effective exposure time
USESPLIT [1]	T	bool	Exposure splits are allowed
TOTTEFF [1]	838.56	float	[s] Total effective exposure time for visit
BBKGMINA [1]	-0.3947016321413652	float
BBKGMINC [1]	-0.2673014085831243	float
BBKGMIND [1]	-0.4786751204310712	float
BBKGMAXA [1]	0.6036115648904081	float
BBKGMAXD [1]	0.2858693184663221	float
BBKGMAXB [1]	0.2978123984653912	float
BBKGMAXC [1]	0.3636081010150568	float
BBKGMINB [1]	-0.2841325038108138	float
POSCVFRC [1]	0.3467	float	Fraction of converged positioners
ETCSPLIT [1]	1	int	ETC split sequence number for this visit
ACQFWHM [1]	1.71791	float	[arcsec] FWHM of guide star PSF in acquisition
TRANSPAR [1]	None	Unknown	ETC/PM transparency
NTSPROG [1]	BRIGHT	str	NTS program name
SLEWANGL [1]	28.856	float	[deg] Slew Angle
ESTTIME [1]	2231.315	float	[s] Estimated exposure time for visit (from ETC
ETCPREV [1]	0.0	float	[s] ETC cummulative t_eff for visit
ETCTRANS [1]	0.719235	float	ETC averaged TRANSP normalized to 1
MINTIME [1]	120.0	float	[s] Minimum exposure time (from NTS, used by ET
ETCTHRUP [1]	0.442956	float	ETC averaged thruput (PSF profile)
ETCTEFF [1]	222.548355	float	[s] ETC effective exposure time
ETCSKY [1]	1.43154	float	ETC averaged, normalized sky camera flux
ETCVERS [1]	0.1.12-3-g12b54bb	str	ETC version
ETCFRACE [1]	0.271983	float	ETC transparency weighted average of FFRAC (ELG
ETCREAL [1]	1054.206299	float	[s] ETC real open shutter time
ETCPROF [1]	BGS	str	ETC source brightness profile
CONVERGD [1]	F	bool	Positioning loop converged (CNFRC>0.95)
ETCSEENG [1]	1.7179	float	[arcsec] ETC seeing
ETCTHRUB [1]	0.469155	float	ETC averaged thruput (BGS profile)
PMTRANSP [1]	104.71	float	[%] PlateMaker GFAPROC transparency
ETCFRACB [1]	0.123838	float	ETC transparency weighted average of FFRAC (BGS
SBPROF [1]	BGS	str	Profile used by ETC
ETCFRACP [1]	0.346107	float	ETC transparency weighted average of FFRAC (PSF
ETCTHRUE [1]	0.474574	float	ETC averaged thruput (ELG profile)
MAXTIME [1]	5400.0	float	[s] Maximum exposure time for entire visit (fro
FVCTIME [1]	2.0	float	[s] FVC exposure time
UPSSTAT [1]	17826.0	float	UPS Status

Data: FITS image [float32, 2751x500]

HDU1

EXTNAME = IVAR

Inverse variance of the flux values 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	2751	int	Number of wavelengths
NAXIS2	500	int	Number of spectra
CHECKSUM	YgRiaZOfTdOfYZOf	str	HDU checksum updated 2021-07-08T12:56:13
DATASUM	2402704670	str	data unit checksum updated 2021-07-08T12:56:13

Data: FITS image [float32, 2751x500]

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	2751	int	Number of wavelengths
NAXIS2	500	int	Number of spectra
BSCALE	1	int
BZERO	2147483648	int
CHECKSUM	9GbI9FbG9FbG9FbG	str	HDU checksum updated 2021-07-08T12:56:14
DATASUM	688701	str	data unit checksum updated 2021-07-08T12:56:14

Data: FITS image [int32, 2751x500]

HDU3

EXTNAME = WAVELENGTH

1D array of wavelengths in Angstrom, in vacuum (not in air). For science exposures (in opposition to calibration exposures), the wavelength in is the rest frame of the solar system barycenter. The Doppler factor applied to the observed wavelength at the telescope to convert them to the barycentric frame is saved in header keyword HELIOCOR in HDU0. In other words, WAVELENGTH = BARYCENTRIC_FRAME_WAVELENGTH = HELICOR * OBSERVER_FRAME_WAVELENGTH. Note a single factor has been applied to all fibers despite a small difference in pointing.

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2751	int	Number of wavelengths
BUNIT	Angstrom	str
CHECKSUM	9GQG9DPE9DPE9DPE	str	HDU checksum updated 2021-07-08T12:56:14
DATASUM	979185614	str	data unit checksum updated 2021-07-08T12:56:14

Data: FITS image [float64, 2751]

HDU4

EXTNAME = RESOLUTION

Resolution matrix stored as the diagonals of a 3D sparse matrix:

Rdata[nspec, ndiag, nwave]

To convert this into sparse matrices for convolving a model that is sampled at the same wavelengths as the extractions (HDU EXTNAME=’WAVELENGTH’):

from scipy.sparse import spdiags
from astropy.io import fits
import numpy as np

#- read a model and its wavelength vector from somewhere
#- IMPORTANT: cast them to .astype(np.float64) to get native endian

#- read the resolution data
resdata = fits.getdata(framefile, 'RESOLUTION').astype(np.float64)

nspec, nwave = model.shape
convolvedmodel = np.zeros((nspec, nwave))
diags = np.arange(10, -11, -1)

for i in range(nspec):
    R = spdiags(resdata[i], diags, nwave, nwave)
    convolvedmodel[i] = R.dot(model)

Required Header Keywords

Required Header Keywords Table

KEY	Example Value	Type	Comment
NAXIS1	2751	int
NAXIS2	11	int
NAXIS3	500	int
CHECKSUM	YGfeaGcdSGcdYGcd	str	HDU checksum updated 2021-07-08T12:56:17
DATASUM	307167897	str	data unit checksum updated 2021-07-08T12:56:17

Data: FITS image [float32, 2751x11x500]

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	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	2500	int
LONGSTRN	OGIP 1.0	str
MODULE	CI	str
FRAMES [1]	None	Unknown
COSMSPLT	F	bool
MAXSPLIT	0	int
SPLITIDS [1]	68979	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	9IArAH5o2HAo9H5o	str	HDU checksum updated 2022-01-29T01:11:34
DATASUM	1239529649	str	data unit checksum updated 2022-01-29T01:11:34
TCSPIRA [1]	1.0,0.0,0.0,0.0	str
SEQSTART [1]	2021-02-24T01:22:15.381414	str
TCSPIDEC [1]	1.0,0.0,0.0,0.0	str
MOONSEP [1]	8.81573236983626	float
TCSKRA [1]	0.3 0.003 0.00003	str
TCSMFRA [1]	1	int
TCSGRA [1]	0.3	float
TCSKDEC [1]	0.3 0.003 0.00003	str
TCSGDEC [1]	0.3	float
TCSMFDEC [1]	1	int
FIELDROT [1]	0.116773054960708	float
FOCSTIME [1]	60.0	float
KEEPSKY [1]	F	bool
SKY [1]	DESIROOT/target/catalogs/dr9/0.51.0/skies	str
PMTRANS [1]	94.62	float
GUIDEFIL [1]	guide-00083129.fits.fz	str
USESPCTR [1]	T	bool
SUNRA [1]	12.514241	float
SP3BLUP [1]	8.133e-08	float
BACKLIT [1]	off	str
SP6REDT [1]	139.94	float
USEILLUM [1]	T	bool
SP8REDP [1]	3.96e-08	float
NTSSURVY [1]	na	str
POSCYCLE [1]	1	int
COORDFIL [1]	coordinates-00083129.fits	str
POSTOLER [1]	0.005	float
SP7REDT [1]	140.01	float
SP0NIRT [1]	139.89	float
SP7NIRP [1]	4.311e-08	float
SP0NIRP [1]	5.998e-08	float
SP6NIRT [1]	139.89	float
SP1BLUT [1]	163.02	float
SP3REDT [1]	139.99	float
SP4NIRP [1]	6.683e-08	float
SP5NIRT [1]	139.94	float
TGFAPROC [1]	9.0024	float
SP7BLUP [1]	9.947e-08	float
GFA [1]	DESIROOT/target/catalogs/dr9/0.51.0/gfas	str
GSGUIDE5 [1]	(806.92,578.08),(449.53,1063.99)	str
SKYLEVEL [1]	1.364	float
TARG [1]	DESIROOT/target/catalogs/dr9/0.51.0/targets/sv1/resolve/dark	str
SP0REDT [1]	139.96	float
USEOPENL [1]	T	bool
SP0BLUT [1]	163.02	float
SP2BLUP [1]	8.492e-08	float
GSGUIDE7 [1]	(884.73,992.68),(494.79,1738.49)	str
SP0BLUP [1]	8.499e-08	float
POSCNVGD [1]	F	bool
USEFOCUS [1]	T	bool
ACQCAM [1]	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str
GSGUIDE0 [1]	(954.26,900.15),(752.14,1756.37)	str
SP3NIRP [1]	3.566e-08	float
SP5BLUT [1]	162.99	float
GUIEXPID [1]	83129	int
SP9NIRP [1]	5.211e-08	float
USEFVC [1]	T	bool
USEGUIDR [1]	T	bool
GSGUIDE2 [1]	(722.18,832.33),(237.62,150.28)	str
GSGUIDE3 [1]	(49.91,660.39),(398.91,1892.18)	str
IGFRMNUM [1]	14	int
FGFRMNUM [1]	45	int
SP4BLUP [1]	6.248e-08	float
SP5BLUP [1]	1.115e-07	float
SP1REDT [1]	139.89	float
SP9BLUT [1]	163.02	float
FA_VER [1]	2.1.1.dev2706	str
IFFRMNUM [1]	1	int
SCSTD [1]	STD_WD,STD_FAINT	str
SP1NIRT [1]	139.89	float
USEFID [1]	T	bool
REQDEC [1]	32.375	float
SP9REDP [1]	5.108e-08	float
SP2REDP [1]	6.944e-08	float
FAARGS [1]	–doclean n –dr dr9 –dtver 0.51.0 –faflavor sv1lrgqso2 –m31cen n –pmtime 2021-03-16T00:00:00.000 –priority custom –rundate 2019-09-16T00:00:00 –tiledec 32.375 –tileid 80873 –tilera 127.7	str
USESKY [1]	T	bool
SP6NIRP [1]	2.809e-07	float
SP4NIRT [1]	139.94	float
SCTARG [1]	STD_WD,LRG,QSO_RF_4PASS,QSO_RF_8PASS,WISE_VAR_QSO,QSO_RED,WD_BINARIES_DARK,BHB,UDG,LOW_MASS_AGN,SPCV	str
FA_RUN [1]	2019-09-16T00:00:00	str
USEPOS [1]	T	bool
SP2BLUT [1]	163.02	float
ARCHIVE [1]	/exposures/desi/20210402/00083129/guide-00083129.fits.fz	str
ISFRMNUM [1]	0	int
SKYSUPP [1]	DESIROOT/target/catalogs/gaiadr2/0.51.0/skies-supp	str
FOCEXPID [1]	83129	int
POSENABL [1]	4056	int
SUNDEC [1]	5.365754	float
TILEDEC [1]	32.375	float
POSFRACT [1]	0.95	float
SP9NIRT [1]	139.86	float
SPLITEXP [1]	F	bool
SP8REDT [1]	139.94	float
SKYEXPID [1]	83129	int
FAOUTDIR [1]	/global/cfs/cdirs/desi/survey/fiberassign/SV1/20210316/	str
RUNDATE [1]	2019-09-16T00:00:00	str
SP4REDT [1]	140.01	float
TILERA [1]	127.7	float
KEEPGUDR [1]	F	bool
POSDISAB [1]	925	int
SP3BLUT [1]	163.02	float
SP0REDP [1]	6.295e-08	float
SP6BLUT [1]	163.02	float
SCND [1]	DESIROOT/target/catalogs/dr9/0.51.0/targets/sv1/secondary/dark	str
SIMGFAP [1]	F	bool
USESPLIT [1]	T	bool
TILEID [1]	80873	int
TARG2 [1]	DESIROOT/target/catalogs/gaiadr2/0.51.0/targets/sv1/resolve/supp	str
SP1NIRP [1]	4.585e-08	float
USEDONUT [1]	T	bool
FIBASSGN [1]	/data/tiles/SVN_tiles/080/fiberassign-080873.fits.gz	str
SP8NIRT [1]	139.99	float
PMTIME [1]	2021-03-16T00:00:00.000	str
SP2NIRT [1]	139.89	float
KEEPFOCS [1]	F	bool
VISITIDS [1]	83129	str
FA_SURV [1]	sv1	str
FFFRMNUM [1]	5	int
SP8BLUP [1]	7.959e-08	float
ACTTEFF [1]	112.2149	float
POSMVALL [1]	T	bool
SP6BLUP [1]	6.3e-08	float
GUIDTIME [1]	5.0	float
SEEING [1]	1.3508	float
SP3REDP [1]	7.919e-08	float
USEETC [1]	T	bool
FIELDNUM [1]	0	int
SP5REDT [1]	139.99	float
SP6REDP [1]	6.337e-08	float
SP8NIRP [1]	4.827e-08	float
USEROTAT [1]	T	bool
FA_PLAN [1]	2022-07-01T00:00:00.000	str
SP2NIRP [1]	6.984e-08	float
POSONFRC [1]	0.4768	float
PETALS [1]	PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9	str
STOPSKY [1]	T	bool
SP7REDP [1]	6.038e-08	float
GUIDECAM [1]	GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8	str
SP8BLUT [1]	162.9	float
TNFSPROC [1]	25.9483	float
ACQTIME [1]	15.0	float
REQADC [1]	92.63,97.66	str
SP4BLUT [1]	163.02	float
FAFLAVOR [1]	sv1lrgqso2	str
OBSCON [1]	DARK|GRAY|BRIGHT	str
SP7NIRT [1]	139.96	float
SP9REDT [1]	139.99	float
POSRMS [1]	0.0076	float
REACQUIR [1]	F	bool
SP5REDP [1]	5.487e-08	float
STOPGUDR [1]	T	bool
POSONTGT [1]	1934	int
FOCUSCAM [1]	FOCUS1,FOCUS4,FOCUS6,FOCUS9	str
SP5NIRP [1]	6.003e-08	float
SP1BLUP [1]	7.992e-08	float
PMSEEING [1]	1.33	float
SP9BLUP [1]	1.231e-07	float
SKYTIME [1]	60	float
POSITER [1]	1	int
USESPLITS [1]	T	bool
SP1REDP [1]	5.506e-08	float
SP3NIRT [1]	140.01	float
FA_HA [1]	0.0	float
SP2REDT [1]	139.96	float
SKYCAM [1]	SKYCAM0,SKYCAM1	str
SP4REDP [1]	4.945e-08	float
SP7BLUT [1]	163.02	float
FSFRMNUM [1]	3	int
SIMGFACQ [1]	F	bool
REQRA [1]	127.7	float
GSGUIDE8 [1]	(364.80,1645.04),(69.26,1479.25)	str
DESIROOT [1]	/global/cfs/cdirs/desi	str
USEXSRVR [1]	T	bool
STOPFOCS [1]	T	bool
REQTEFF [1]	1000.0	float
GOALTIME [1]	1200.0	float
SBPROF [1]	ELG	str
EBVFAC [1]	1.07122550132983	float
MTLTIME [1]	2021-04-17T20:00:39	str
GOALTYPE [1]	DARK	str
MTL [1]	DESIROOT/survey/ops/surveyops/trunk/mtl/sv3/dark	str
SURVEY [1]	sv3	str
SCNDMTL [1]	DESIROOT/survey/ops/surveyops/trunk/mtl/sv3/secondary/dark	str
FAPRGRM [1]	DARK	str
TOTTEFF [1]	838.56	float
PMCORR [1]	n	str
MINTFRAC [1]	0.9	float
BBKGMINA [1]	-0.3947016321413652	float
BBKGMINC [1]	-0.2673014085831243	float
BBKGMIND [1]	-0.4786751204310712	float
BBKGMAXA [1]	0.6036115648904081	float
BBKGMAXD [1]	0.2858693184663221	float
BBKGMAXB [1]	0.2978123984653912	float
BBKGMAXC [1]	0.3636081010150568	float
BBKGMINB [1]	-0.2841325038108138	float
FVCTIME [1]	2.0	float
POSCVFRC [1]	0.3467	float
ETCSPLIT [1]	1	int
ACQFWHM [1]	1.71791	float
TRANSPAR [1]	None	Unknown
NTSPROG [1]	BRIGHT	str
SLEWANGL [1]	28.856	float
TOO [1]	/data/afternoon_planning/surveyops/trunk/mtl/sv3/ToO/ToO.ecsv	str
ESTTIME [1]	2231.315	float
ETCPREV [1]	0.0	float
ETCTRANS [1]	0.719235	float
MINTIME [1]	120.0	float
ETCTHRUP [1]	0.442956	float
ETCTEFF [1]	222.548355	float
ETCSKY [1]	1.43154	float
ETCVERS [1]	0.1.12-3-g12b54bb	str
ETCFRACE [1]	0.271983	float
ETCREAL [1]	1054.206299	float
ETCPROF [1]	BGS	str
CONVERGD [1]	F	bool
ETCSEENG [1]	1.7179	float
ETCTHRUB [1]	0.469155	float
PMTRANSP [1]	104.71	float
ETCFRACB [1]	0.123838	float
ETCFRACP [1]	0.346107	float
ETCTHRUE [1]	0.474574	float
MAXTIME [1]	5400.0	float
SIMGFAQ [1]	F	bool
SHFTFOCS [1]	220.0	float
FASCRIPT [1]	../bin/fba_launch	str
ROLE [1]	GUIDERMAN	str
SVNDM [1]	unknown	str
SVNMTL [1]	unknown	str
TARG3 [1]	DESIROOT/target/catalogs/dr9/0.51.0/targets/sv1/resolve/bright	str
DR [1]	dr9	str
M31CEN [1]	n	str
PRIORITY [1]	default	str
DTVER [1]	0.50.0	str
UPSSTAT.undefined [1]	17826.0	float
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 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	int64		Brick ID from tractor input
BRICK_OBJID	int64		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)
MASKBITS	int16		Bitwise mask from the imaging indicating potential issue or blending
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
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
CMX_TARGET [1]	int64		Target selection bitmask for commissioning
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_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_DESI_TARGET [1]	int64		DESI (dark time program) target selection bitmask for SV1
SV1_SCND_TARGET [1]	int64		Secondary target selection bitmask for SV1
SV3_BGS_TARGET [1]	int64		BGS (bright time program) target selection bitmask for SV3
SV3_DESI_TARGET [1]	int64		DESI (dark time program) target selection bitmask for SV3
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
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_MWS_TARGET [1]	int64		MWS (bright time program) target selection bitmask for SV2
SV2_BGS_TARGET [1]	int64		BGS (bright time program) target selection bitmask for SV2

[1] (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346,347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394,395,396,397,398,399,400,401,402,403,404,405,406,407,408,409,410,411,412,413,414,415,416,417,418,419,420,421,422,423,424,425,426,427,428,429,430,431,432,433,434,435,436,437,438,439,440,441,442,443,444,445,446,447,448,449,450,451,452,453,454,455,456,457,458,459,460,461,462,463,464,465,466,467,468,469,470,471,472,473,474,475,476,477,478,479,480,481,482,483,484,485,486,487,488,489,490,491,492,493,494,495,496,497,498,499,500,501,502,503,504,505,506,507,508,509,510,511,512,513,514,515,516,517,518,519,520,521,522,523,524,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566,567,568,569,570,571,572,573,574,575,576,577,578,579,580,581,582,583,584,585,586,587,588,589,590,591,592,593,594,595,596,597,598,599,600,601,602,603,604,605,606,607,608,609,610,611,612,613,614,615,616,617,618,619,620,621,622,623,624,625,626,627,628,629,630,631,632,633,634,635,636,637,638,639,640,641,642,643,644,645,646,647,648,649,650,651,652,653,654,655,656,657,658,659,660,661,662,663,664,665,666,667,668,669,670,671,672,673,674,675,676,677,678,679,680,681,682,683,684,685,686,687,688,689,690,691,692,693,694,695,696,697,698,699,700,701,702,703,704,705,706,707,708,709,710,711,712,713,714,715,716,717,718,719,720,721,722,723,724,725,726,727,728,729,730,731,732,733,734,735,736,737,738,739,740,741,742,743,744,745,746,747,748,749,750,751,752,753,754,755,756,757,758,759,760,761,762,763,764,765,766,767,768,769,770,771,772,773,774,775,776,777,778,779)

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	2751	int	Number of wavelengths
NAXIS2	500	int	Number of spectra
CHECKSUM	SCE8VAB5SAB5SAB5	str	HDU checksum updated 2021-07-08T12:56:18
DATASUM	3693165584	str	data unit checksum updated 2021-07-08T12:56:18

Data: FITS image [float32, 2751x500]

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).