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cframe-CAMERA-EXPID.rst

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cframe-CAMERA-EXPID.fits

Summary

This holds the calibrated spectra for a given camera and exposure. See the datamodel for frame-CAMERA-EXPID.fits <frame-CAMERA-EXPID> files for details of the format.

Naming Convention

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

Regex

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

File Type

FITS, 82 MB

Contents

Number EXTNAME Type Contents
HDU0 FLUX IMAGE Flux, 10^{-17} erg/s/cm2/A
HDU1 IVAR IMAGE Inverse variance, (10^{-17} erg/s/cm2/A)^-2
HDU2 MASK IMAGE Mask (0 = good)
HDU3 WAVELENGTH IMAGE wavelength in Angstrom
HDU4 RESOLUTION IMAGE Resolution Matrix
HDU5 FIBERMAP BINTABLE Fibermap
HDU6 CHI2PIX IMAGE chi2 of fit of PSF model to CCD image
HDU7 SCORES BINTABLE Quality Assurance scores

FITS Header Units

HDU0

EXTNAME = FLUX

2D array of calibrated spectral flux of dimension [nspec, nwave] in units of 1e-17 erg / (s cm2 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). cframe.flux = ( frame.flux / flatfield - sky ) / fluxcalib. This calibration of the total flux is valid for point sources only. For extended sources, one may consider the 'fiber flux', which is the flux one would collect in a 1.5 arcsec diameter aperture centered on the object when observed with a 1 arcsec FWHM Gaussian seeing. The 'fiber flux' can be obtained by multiplying the flux array of each fiber by the corresponding entry in fibermap table column 'PSF_TO_FIBER_SPECFLUX'. This is the quantity to use for comparison with the photometric FIBERFLUX values given for several band passes in the fibermap.

Required Header Keywords

Required Header Keywords Table

keywords

KEY Example Value Type Comment

NAXIS1 NAXIS2

2326 500

int int
EXPID 69022 int Exposure number
EXPFRAME 0 int Frame number
TILEID 80616 int DESI Tile ID
FIBASSGN /data/tiles/SVN_tiles/080/fiberassign-080616.fits str Fiber assign fil
FLAVOR science str Observation type
SEQUENCE DESI str OCS Sequence name
PURPOSE Commissioning str Purpose of observing night
PROGRAM SV1 BGS+MWS tile 80616 str Program name
PROPID 2019B-5000 str Proposal ID
OBSERVER DESIObserver str Names of observers
LEAD RunManager str Lead observer
INSTRUME DESI str Instrument name
OBSERVAT KPNO str Observatory name
OBS-LAT 31.96403 str [deg] Observatory latitude
OBS-LONG -111.59989 str [deg] Observatory east longitude
OBS-ELEV 2097.0 float [m] Observatory elevation
TELESCOP KPNO 4.0-m telescope str Telescope name
CORRCTOR DESI Corrector str Corrector Identification
NIGHT 20201220 int Observing night
TIMESYS UTC str Time system used for date-obs
DATE-OBS 2020-12-21T02:36:32.099838 str [UTC] Observation data and start time
TIME-OBS 02:39:11.845920 str [UTC] Observation start time
MJD-OBS 59204.10870486 float Modified Julian Date of observation
OPENSHUT 2020-12-21T02:36:32.099838 str Time shutter opened
ST 01:10:39.210 str Local Sidereal time at observation start (HH:MM
EXPTIME 300.007 float [s] Actual exposure time
REQRA 356.0 float [deg] Requested right ascension (observer input
REQDEC 29.0 float [deg] Requested declination (observer input)
FOCUS 1426.5,-501.4,81.0,-2.6,42.3,169.2 str Telescope focus settings
VCCD ON str True (ON) if CCD voltage is on
VCCDON 2020-12-09T21:23:19.307761 str Time when CCD voltage was turned on
VCCDSEC 969702.2 float [s] CCD on time in seconds
TRUSTEMP 11.767 float [deg] Average Telescope truss temperature (only
PMIRTEMP 8.925 float [deg] Average primary mirror temperature (nit,e
EQUINOX 2000.0 float Epoch of observation
MOUNTAZ 266.70224 float [deg] Mount azimuth angle
MOUNTDEC 28.999221 float [deg] Mount declination
MOUNTEL 71.039837 float [deg] Mount elevation angle
MOUNTHA 21.769281 float [deg] Mount hour angle
SKYDEC 28.999221 float [deg] Telescope declination (pointing on sky)
SKYRA 355.996551 float [deg] Telescope right ascension (pointing on sk
TARGTDEC 28.999221 float [deg] Target declination (to TCS)
TARGTRA 355.996551 float [deg] Target right ascension (to TCS)
USEETC F bool ETC data available if true
USESKY T bool DOS Control: use Sky Monitor
USEFOCUS T bool DOS Control: use focus
HEXTRIM 0.0,0.0,0.0,0.0,0.0,0.0 str Hexapod trim values
USEROTAT T bool DOS Control: use rotator
ROTOFFST 167.1 float [arcsec] Rotator offset
ROTENBLD T bool Rotator enabled
ROTRATE 0.0 float [arcsec/min] Rotator rate
USEGUIDR T bool DOS Control: use guider
USEDONUT T bool DOS Control: use donuts
SPECGRPH 8 int Spectrograph logical name (SP)
SPECID 2 int Spectrograph serial number (SM)
FEEBOX lbnl050 str CCD Controller serial number
VESSEL 8 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 -135.3315 float [deg C] CCD controller CCD temperature
RADESYS FK5 str Coordinate reference frame of major/minor axes
FILENAME /exposures/desi/specs/20201220/00069022/sp1-00069022.fits.fz str Name
DOSVER trunk str DOS software version
OCSVER 1.2 float OCS software version
CONSTVER DESI:CURRENT str Constants version
INIFILE /data/msdos/dos_home/architectures/kpno/desi.ini str DOS Configuration
AMPSECB [4114:2058, 1:2064] str AMP section for quadrant B
DAC16 39.9961,39.3162 str [V] set value, measured value
CLOCK8 9.9992,2.9993 str [V] high rail, low rail
PRRSECD [2193:4249, 4194:4194] str Row prescan section for quadrant D
CCDPREP purge,clear str CCD prep actions
CLOCK10 9.9992,2.9993 str [V] high rail, low rail
DAC17 20.0008,12.2732 str [V] set value, measured value
ORSECB [2193:4249, 2066:2097] str Row overscan section for quadrant B
DAC15 0.0,0.0148 str [V] set value, measured value
ORSECD [2193:4249, 2098:2129] str Row bias section for quadrant D
DIGITIME 47.5899 float [s] Time to digitize image
BIASSECA [2065:2128, 2:2065] str Bias section for quadrant A
CLOCK9 9.9992,2.9993 str [V] high rail, low rail
CLOCK18 9.0,0.9999 str [V] high rail, low rail
CAMERA r8 str Camera name
CLOCK17 9.0,0.9999 str [V] high rail, low rail
CLOCK5 9.9999,0.0 str [V] high rail, low rail
TRIMSECD [2193:4249, 2130:4193] str Trim section for quadrant D
DETSECD [2058:4114, 2065:4128] str Detector section for quadrant D
DAC0 -9.0002,-8.9507 str [V] set value, measured value
CLOCK15 9.9992,2.9993 str [V] high rail, low rail
TRIMSECA [8:2064, 2:2065] str Trim section for quadrant A
BIASSECB [2129:2192, 2:2065] str Bias section for quadrant B
CLOCK11 9.9992,2.9993 str [V] high rail, low rail
CLOCK12 9.9992,2.9993 str [V] high rail, low rail
AMPSECD [4114:2058, 4128:2065] str AMP section for quadrant D
CLOCK4 9.9999,0.0 str [V] high rail, low rail
PRRSECB [2193:4249, 1:1] str Row prescan section for quadrant B
CCDSECD [2058:4114, 2065:4128] str CCD section for quadrant D
CCDTMING default_lbnl_timing_20180905.txt str CCD timing file
TRIMSECB [2193:4249, 2:2065] str Trim section for quadrant B
CCDSIZE 4194,4256 str CCD size in pixels (rows, columns)
PGAGAIN 3 int Controller gain
PRESECD [4250:4256, 2130:4193] str Prescan section for quadrant D
CLOCK6 9.9999,0.0 str [V] high rail, low rail
CLOCK13 9.9992,2.9993 str [V] high rail, low rail
DAC7 5.9998,6.028 str [V] set value, measured value
DATASECA [8:2064, 2:2065] str Data section for quadrant A
CRYOTEMP1 162.97 float [deg K] Cryostat CCD temperature
OFFSET2 0.4000000059604645,-8.9198 str [V] set value, measured value
OFFSET6 2.0,6.0437 str [V] set value, measured value
DELAYS 20, 20, 25, 40, 7, 3000, 7, 7, 7, 7 str [10] Delay settings
BIASSECD [2129:2192, 2130:4193] str Bias section for quadrant D
PRRSECA [8:2064, 1:1] str Row prescan section for quadrant A
TRIMSECC [8:2064, 2130:4193] str Trim section for quadrant C
CLOCK3 -2.0001,3.9999 str [V] high rail, low rail
CCDNAME CCDSM2R str CCD name
DAC9 -25.0003,-24.768 str [V] set value, measured value
CCDSECC [1:2057, 2065:4128] str CCD section for quadrant C
ORSECA [8:2064, 2066:2097] str Row overscan section for quadrant A
DAC5 5.9998,6.0543 str [V] set value, measured value
CCDSECB [2058:4114, 1:2064] str CCD section for quadrant B
DETSECB [2058:4114, 1:2064] str Detector section for quadrant B
OFFSET0 0.4000000059604645,-8.9507 str [V] set value, measured value
SETTINGS detectors_sm_20191211.json str Name of DESI CCD settings file
DAC11 -25.0003,-24.8422 str [V] set value, measured value
BIASSECC [2065:2128, 2130:4193] str Bias section for quadrant C
CASETEMP 59.8142 float [deg C] CCD controller case temperature
DAC10 -25.0003,-24.7086 str [V] set value, measured value
DAC1 -9.0002,-8.9198 str [V] set value, measured value
DAC14 0.0,0.0594 str [V] set value, measured value
DETECTOR M1-46 str Detector (ccd) identification
CDSPARMS 400, 400, 8, 2000 str CDS parameters
OFFSET3 0.4000000059604645,-8.9095 str [V] set value, measured value
DATASECB [2193:4249, 2:2065] str Data section for quadrant B
ORSECC [8:2064, 2098:2129] str Row overscan section for quadrant C
CRYOPRES2 8.897e-08 str [mb] Cryostat pressure (IP)
AMPSECA [1:2057, 1:2064] str AMP section for quadrant A
OFFSET7 2.0,6.028 str [V] set value, measured value
DAC4 5.9998,6.028 str [V] set value, measured value
DATASECC [8:2064, 2130:4193] str Data section for quadrant C
PRESECC [1:7, 2130:4193] str Prescan section for quadrant C
CLOCK16 9.9999,3.0 str [V] high rail, low rail
CLOCK1 9.9999,0.0 str [V] high rail, low rail
PRESECB [4250:4256, 2:2065] str Prescan section for quadrant B
DAC12 0.0,0.0297 str [V] set value, measured value
DAC8 -25.0003,-24.9312 str [V] set value, measured value
OFFSET4 2.0,6.0332 str [V] set value, measured value
DAC2 -9.0002,-8.9198 str [V] set value, measured value
CCDCFG default_lbnl_20190717.cfg str CCD configuration file
BLDTIME 0.3547 float [s] Time to build image
PRESECA [1:7, 2:2065] str Prescan section for quadrant A
DATASECD [2193:4249, 2130:4193] str Data section for quadrant D
DETSECC [1:2057, 2065:4128] str Detector section for quadrant C
PRRSECC [8:2064, 4194:4194] str Row prescan section for quadrant C
DAC6 5.9998,6.0437 str [V] set value, measured value
DETSECA [1:2057, 1:2064] str Detector section for quadrant A
CLOCK2 9.9999,0.0 str [V] high rail, low rail
DAC3 -9.0002,-8.9095 str [V] set value, measured value
OFFSET1 0.4000000059604645,-8.9198 str [V] set value, measured value
AMPSECC [1:2057, 4128:2065] str AMP section for quadrant C
CLOCK7 -2.0001,3.9999 str [V] high rail, low rail
DAC13 0.0,0.0148 str [V] set value, measured value
CCDSECA [1:2057, 1:2064] str CCD section for quadrant A
OFFSET5 2.0,6.049 str [V] set value, measured value
CLOCK14 9.9992,2.9993 str [V] high rail, low rail
CLOCK0 9.9999,0.0 str [V] high rail, low rail
CPUTEMP 60.8086 float [deg C] CCD controller CPU temperature
REQTIME 300.0 float [s] Requested exposure time
OBSID kp4m20201221t023911 str Unique observation identifier
PROCTYPE RAW str Data processing level
PRODTYPE image str Data product type
CHECKSUM OUDTPU9ROUCROU9R str HDU checksum updated 2022-02-14T08:25:01
DATASUM 737508938 str data unit checksum updated 2022-02-14T08:25:01
GAINA 1.627 float e/ADU (gain applied to image)
SATULEVA 65535.0 float saturation or non lin. level, in ADU, inc. bias
OSTEPA 0.5704803307307884 float ADUs (max-min of median overscan per row)
OMETHA AVERAGE str use average overscan
OVERSCNA 1984.679589024373 float ADUs (gain not applied)
OBSRDNA 2.48375231913931 float electrons (gain is applied)
SATUELEA 103396.3713086573 float saturation or non lin. level, in electrons
GAINB 1.482 float e/ADU (gain applied to image)
SATULEVB 65535.0 float saturation or non lin. level, in ADU, inc. bias
OSTEPB 0.5242006066837348 float ADUs (max-min of median overscan per row)
OMETHB AVERAGE str use average overscan
OVERSCNB 1980.885980481041 float ADUs (gain not applied)
OBSRDNB 2.179252294581384 float electrons (gain is applied)
SATUELEB 94187.1969769271 float saturation or non lin. level, in electrons
GAINC 1.581 float e/ADU (gain applied to image)
SATULEVC 65535.0 float saturation or non lin. level, in ADU, inc. bias
OSTEPC 0.6303264842863427 float ADUs (max-min of median overscan per row)
OMETHC AVERAGE str use average overscan
OVERSCNC 1966.11973127108 float ADUs (gain not applied)
OBSRDNC 2.455388696359903 float electrons (gain is applied)
SATUELEC 100502.3997048604 float saturation or non lin. level, in electrons
GAIND 1.589 float e/ADU (gain applied to image)
SATULEVD 65535.0 float saturation or non lin. level, in ADU, inc. bias
OSTEPD 0.6243009115278255 float ADUs (max-min of median overscan per row)
OMETHD AVERAGE str use average overscan
OVERSCND 1987.970298453192 float ADUs (gain not applied)
OBSRDND 2.518301447806098 float electrons (gain is applied)

SATUELED FIBERMIN

100976.2301957579 4000

float int

saturation or non lin. level, in electrons
LONGSTRN OGIP 1.0 str The OGIP Long String Convention may be used.
MODULE CI str Image Sources/Component
COSMSPLT F bool Cosmics split exposure if true
MAXSPLIT 0 int Number of allowed exposure splits
SPLITIDS3 69022 str List of expids for split exposures
OBSTYPE SCIENCE str Spectrograph observation type

MANIFEST OBJECT

F

bool str

DOS exposure manifest Object name
SEQNUM 1 int Number of exposure in sequence
CAMSHUT open str Shutter status during observation
ACQTIME 15.0 float [s] acqusition image exposure time
GUIDTIME 5.0 float [s] guider GFA exposure time
FOCSTIME4 60.0 float [s] focus GFA exposure time
SKYTIME5 60.0 float [s] sky camera exposure time (acquisition)
WHITESPT F bool Telescope is at whitespot
ZENITH F bool Telescope is at zenith
SEANNEX F bool Telescope is at SE annex
BEYONDP F bool Telescope is beyond pole
FIDUCIAL off str Fiducials status during observation
BACKLIT off str Fibers are backlit if True
AIRMASS 1.060311 float Airmass
PMREADY T bool Primary mirror ready
PMCOVER open str Primary mirror cover
PMCOOL off str Primary mirror cooling
DOMSHUTU open str Upper dome shutter
DOMSHUTL open str Lower dome shutter
DOMLIGHH off str High dome lights
DOMLIGHL off str Low dome lights
DOMEAZ 255.166 float [deg] Dome azimuth angle
DOMINPOS T bool Dome is in position
GUIDOFFR -0.052283 float [arcsec] Cummulative guider offset (RA)
GUIDOFFD 0.136634 float [arcsec] Cummulative guider offset (dec)
MOONDEC -8.975162 float [deg] Moon declination at start of exposure
MOONRA 352.538429 float [deg] Moon RA at start of exposure
INCTRL T bool DESI in control
INPOS T bool Mount in position
MNTOFFD -15.76 float [arcsec] Mount offset (dec)
MNTOFFR 29.32 float [arcsec] Mount offset (RA)
PARALLAC 75.635085 float [deg] Parallactic angle
TARGTAZ 267.074049 float [deg] Target azimuth
TARGTEL 70.563787 float [deg] Target elevation
TRGTOFFD 0.0 float [arcsec] Telescope target offset (dec)
TRGTOFFR 0.0 float [arcsec] Telescope target offset (RA)
ZD 19.436213 float [deg] Telescope zenith distance
TILERA 356.0 float RA of tile given in fiberassign file
TILEDEC 29.0 float DEC of tile given in fiberassign file
TCSST 01:13:18.668 str Local Sidereal time reported by TCS (HH:MM:SS)
TCSMJD 59204.110981 float MJD reported by TCS
ACQCAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Acquisition cameras used
GUIDECAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Guide cameras used for t
FOCUSCAM6 FOCUS1,FOCUS4,FOCUS6,FOCUS9 str Focus cameras used for this exposure
SKYCAM7 SKYCAM0,SKYCAM1 str Sky cameras used for this exposure
REQADC 65.78,85.28 str [deg] requested ADC angles
ADCCORR T bool Correct pointing for ADC setting if True
ADC1PHI 65.780005 float [deg] ADC 1 angle
ADC2PHI 85.279991 float [deg] ADC 2 angle
ADC1HOME F bool ADC 1 at home position if True
ADC2HOME F bool ADC 2 at home position if True
ADC1NREV -1.0 float ADC 1 number of revs
ADC2NREV 0.0 float ADC 2 number of revs
ADC1STAT STOPPED str ADC 1 status
ADC2STAT STOPPED str ADC 2 status
HEXPOS 1426.5,-501.3,81.0,-2.6,42.3,171.9 str Hexapod position
RESETROT F bool DOS Control: reset hex rotator
USEPOS T bool Fiber positioner data available if true
PETALS PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9 str Participating petals
POSCYCLE 1 int Number of current iteration
POSONTGT 3626 int Number of positioners on target
POSONFRC 0.8613 float Fraction of positioners on target
POSDISAB 37 int Number of disabled positioners
POSENABL 4210 int Number of enabled positioners
POSRMS 0.0171 float [micron] RMS of positioner accuracy

POSITER POSFRACT

1 0.95

int float

Positioning Control: max. number of pos. cycles
POSTOLER 0.01 float Positioning Control: in_position tolerance (mm)
POSMVALL T bool Positioning Control: move all positioners
GUIDMODE catalog str Guider mode
USEAOS8 F bool DOS Control: AOS data available if true
USESPCTR T bool DOS Control: use spectrographs
SPCGRPHS SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 str Participating spectrograph
ILLSPECS9 SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 str Participating illuminate s
CCDSPECS10 SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 str Participating ccd spectrog
TDEWPNT -16.043 float Telescope air dew point
TAIRFLOW 0.0 float Telescope air flow
TAIRITMP 11.8 float [deg] Telescope air in temperature
TAIROTMP 11.7 float [deg] Telescope air out temperature
TAIRTEMP 10.65 float [deg] Telescope air temperature
TCASITMP 0.0 float [deg] Telescope Cass Cage in temperature
TCASOTMP 10.8 float [deg] Telescope Cass Cage out temperature
TCSITEMP 9.3 float [deg] Telescope center section in temperature
TCSOTEMP 10.8 float [deg] Telescope center section out temperature
TCIBTEMP 0.0 float [deg] Telescope chimney IB temperature
TCIMTEMP 0.0 float [deg] Telescope chimney IM temperature
TCITTEMP 0.0 float [deg] Telescope chimney IT temperature
TCOSTEMP 0.0 float [deg] Telescope chimney OS temperature
TCOWTEMP 0.0 float [deg] Telescope chimney OW temperature
TDBTEMP 9.3 float [deg] Telescope dec bore temperature
TFLOWIN 0.0 float Telescope flow rate in
TFLOWOUT 0.0 float Telescope flow rate out
TGLYCOLI 9.9 float [deg] Telescope glycol in temperature
TGLYCOLO 9.8 float [deg] Telescope glycol out temperature
THINGES 11.4 float [deg] Telescope hinge S temperature
THINGEW 11.2 float [deg] Telescope hinge W temperature
TPMAVERT 8.931 float [deg] Telescope mirror averagetemperature
TPMDESIT 7.0 float [deg] Telescope mirror desired temperature
TPMEIBT 8.6 float [deg] Telescope mirror EIB temperature
TPMEITT 8.6 float [deg] Telescope mirror EIT temperature
TPMEOBT 8.5 float [deg] Telescope mirror EOB temperature
TPMEOTT 9.0 float [deg] Telescope mirror EOT temperature
TPMNIBT 8.4 float [deg] Telescope mirror NIB temperature
TPMNITT 8.9 float [deg] Telescope mirror NIT temperature
TPMNOBT 8.8 float [deg] Telescope mirror NOB temperature
TPMNOTT 9.1 float [deg] Telescope mirror NOT temperature
TPMRTDT 9.0 float [deg] Telescope mirror RTD temperature
TPMSIBT 8.6 float [deg] Telescope mirror SIB temperature
TPMSITT 8.8 float [deg] Telescope mirror SIT temperature
TPMSOBT 8.2 float [deg] Telescope mirror SOB temperature
TPMSOTT 8.9 float [deg] Telescope mirror SOT temperature
TPMSTAT ready str Telescope mirror status
TPMWIBT 8.2 float [deg] Telescope mirror WIB temperature
TPMWITT 9.1 float [deg] Telescope mirror WIT temperature
TPMWOBT 8.3 float [deg] Telescope mirror WOB temperature
TPMWOTT 8.9 float [deg] Telescope mirror WOT temperature
TPCITEMP 8.5 float [deg] Telescope primary cell in temperature
TPCOTEMP 8.6 float [deg] Telescope primary cell out temperature
TPR1HUM 0.0 float Telescope probe 1 humidity
TPR1TEMP 0.0 float [deg] Telescope probe1 temperature
TPR2HUM 0.0 float Telescope probe 2 humidity
TPR2TEMP 0.0 float [deg] Telescope probe2 temperature
TSERVO 40.0 float Telescope servo setpoint
TTRSTEMP 11.4 float [deg] Telescope top ring S temperature
TTRWTEMP 11.0 float [deg] Telescope top ring W temperature
TTRUETBT -4.2 float [deg] Telescope truss ETB temperature
TTRUETTT 11.2 float [deg] Telescope truss ETT temperature
TTRUNTBT 10.9 float [deg] Telescope truss NTB temperature
TTRUNTTT 11.2 float [deg] Telescope truss NTT temperature
TTRUSTBT 10.7 float [deg] Telescope truss STB temperature
TTRUSTST 10.8 float [deg] Telescope truss STS temperature
TTRUSTTT 11.1 float [deg] Telescope truss STT temperature
TTRUTSBT 11.8 float [deg] Telescope truss TSB temperature
TTRUTSMT 11.8 float [deg] Telescope truss TSM temperature
TTRUTSTT 11.8 float [deg] Telescope truss TST temperature
TTRUWTBT 10.5 float [deg] Telescope truss WTB temperature
TTRUWTTT 10.9 float [deg] Telescope truss WTT temperature
ALARM F bool UPS major alarm or check battery
ALARM-ON F bool UPS active alarm condition
BATTERY 100.0 float [%] UPS Battery left
SECLEFT 5178.0 float [s] UPS Seconds left
UPSSTAT System Normal - On Line(7) str UPS Status
INAMPS 70.4 float [A] UPS total input current
OUTWATTS 5000.0,7200.0,4800.0 str [W] UPS Phase A, B, C output watts
COMPDEW -12.9 float [deg C] Computer room dewpoint
COMPHUM 7.4 float [%] Computer room humidity
COMPAMB 19.5 float [deg C] Computer room ambient temperature
COMPTEMP 24.5 float [deg C] Computer room hygrometer temperature
DEWPOINT 11.5 float [deg C] (outside) dewpoint
HUMIDITY 10.0 float [%] (outside) humidity
PRESSURE 795.0 float [torr] (outside) air pressure
OUTTEMP 0.0 float [deg C] outside temperature
WINDDIR 55.0 float [deg] wind direction
WINDSPD 27.3 float [m/s] wind speed
GUST 20.6 float [m/s] Wind gusts speed
AMNIENTN 13.5 float [deg C] ambient temperature north
CFLOOR 8.9 float [deg C] temperature on C floor
NWALLIN 13.9 float [deg C] temperature at north wall inside
NWALLOUT 9.6 float [deg C] temperature at north wall outside
WWALLIN 12.9 float [deg C] temperature at west wall inside
WWALLOUT 10.6 float [deg C] temperature at west wall outside
AMBIENTS 14.8 float [deg C] ambient temperature south
FLOOR 12.6 float [deg C] temperature at floor (LCR)
EWALLCMP 10.8 float [deg C] temperature at east wall, computer room
EWALLCOU 10.6 float [deg C] temperature at east wall, Coude room
ROOF 10.3 float [deg C] temperature on roof
ROOFAMB 10.6 float [deg C] ambient temperature on roof
DOMEBLOW 10.4 float [deg C] temperature at dome back, lower
DOMEBUP 10.7 float [deg C] temperature at dome back, upper
DOMELLOW 10.8 float [deg C] temperature at dome left, lower
DOMELUP 10.8 float [deg C] temperature at dome left, upper
DOMERLOW 10.6 float [deg C] temperature at dome right, lower
DOMERUP 10.5 float [deg C] temperature at dome right, upper
PLATFORM 10.4 float [deg C] temperature at platform
SHACKC 14.4 float [deg C] temperature at shack ceiling
SHACKW 13.7 float [deg C] temperature at shack wall
STAIRSL 10.5 float [deg C] temperature at stairs, lower
STAIRSM 10.4 float [deg C] temperature at stairs, mid
STAIRSU 10.6 float [deg C] temperature at stairs, upper
TELBASE 9.6 float [deg C] temperature at telescope base
UTILWALL 11.1 float [deg C] temperature at utility room wall
UTILROOM 10.9 float [deg C] temperature in utilitiy room
TNFSPROC11 8.1963 float [s] PlateMaker NFSPROC processing time
TGFAPROC12 7.9212 float [s] PlateMaker GFAPROC processing time
SIMGFAP F bool DOS Control: simulate GFAPROC
USEFVC T bool DOS Control: use fvc
USEFID T bool DOS Control: use fiducials
USEILLUM T bool DOS Control: use illuminator
USEXSRVR T bool DOS Control: use exposure server
USEOPENL T bool DOS Control: use open loop move
STOPGUDR T bool DOS Control: stop guider
STOPFOCS T bool DOS Control: stop focus
STOPSKY T bool DOS Control: stop sky monitor
KEEPGUDR F bool DOS Control: keep guider running
KEEPFOCS F bool DOS Control: keep focus running
KEEPSKY F bool DOS Control: keep sky mon. running

REACQUIR EXCLUDED

F

bool str

DOS Control: reacquire same files Components excluded from this exposure

FVCTIME13 SIMGFACQ

2.0 F

float bool

[s] FVC exposure time
POSCNVGD14 F bool Number of positioners converged
GUIEXPID 69022 int Guider exposure id at start of spectro exp.
IGFRMNUM 12 int Guider frame number at start of spectro exp.
FOCEXPID 69022 int Focus exposure id at start of spectro exp.
IFFRMNUM 1 int Focus frame number at start of spectro exp.
SKYEXPID 69022 int Sky exposure id at start of spectro exp.
ISFRMNUM 1 int Sky frame number at start of spectro exp.
FGFRMNUM 46 int Guider frame number at end of spectro exp.
FFFRMNUM 6 int Focus frame number at end of spectro exp.

FSFRMNUM HELIOCOR

5 0.9999115198216216

int float

Sky frame number at end of spectro exp.
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 IN_IMG ORIG_PSF BUNIT TSNRALPH IN_FRAME FIBERFLT IN_SKY IN_CALIB BBKGMINC15 BBKGMAXB16 BBKGMINB17 BBKGMIND18 BBKGMAXA19 BBKGMAXC20 BBKGMINA21 BBKGMAXD22

SPECPROD/exposures/20201220/00069022/psf-r8-00069022.fits SPECPROD/preproc/20201220/00069022/preproc-r8-00069022.fits SPECPROD/calibnight/20201220/psfnight-r8-20201220.fits 10**-17 erg/(s cm2 Angstrom) 1.469972702034016 SPECPROD/exposures/20201220/00069022/frame-r8-00069022.fits SPECPROD/exposures/20201220/00069022/fiberflatexp-r8-00069022.fits SPECPROD/exposures/20201220/00069022/sky-r8-00069022.fits SPECPROD/exposures/20201220/00069022/fluxcalib-r8-00069022.fits -0.3364347403909462 0.8957266211094218 -0.04275468459496062 -0.6146250452424397 0.6126625684320178 0.4926723425188555 -0.4336472364870191 0.8117108701207832

str str str str float str str str str float float float float float float float float

Input sp
SP2REDP23 6.448e-08 float [mb] SP2 red pressure
SP8BLUP24 8.153e-08 float [mb] SP8 blue pressure
SP9NIRT25 139.96 float [K] SP9 NIR temperature
SP4REDP26 5.168e-08 float [mb] SP4 red pressure
TCSKDEC27 0.3 0.003 0.00003 str TCS Kalman (dec)
TCSPIRA28 1.0,0.0,0.0,0.0 str TCS PI settings (P, I (gain, error window, satu
SP4BLUT29 163.02 float [K] SP4 blue temperature
TCSMFDEC30 1 int TCS moving filter length (dec)
SP4REDT31 140.03 float [K] SP4 red temperature
SP9REDP32 8.485e-08 float [mb] SP9 red pressure
SP9NIRP33 5.579e-08 float [mb] SP9 NIR pressure
SP5REDP34 4.908e-08 float [mb] SP5 red pressure
SP1REDT35 139.96 float [K] SP1 red temperature
SUNRA36 21.738482 float [deg] Sun RA at start of exposure
SP3BLUT37 163.02 float [K] SP3 blue temperature
SP8NIRP38 4.831e-08 float [mb] SP8 NIR pressure
SP9BLUP39 1.208e-07 float [mb] SP9 blue pressure
SKYLEVEL40 1.133 float counts?] ETC sky level
TCSKRA41 0.3 0.003 0.00003 str TCS Kalman (RA)
SP4BLUP42 6.109e-08 float [mb] SP4 blue pressure
SP2NIRT43 139.96 float [K] SP2 NIR temperature
SP7BLUP44 9.938e-08 float [mb] SP7 blue pressure
SP0NIRP45 5.934e-08 float [mb] SP0 NIR pressure
FRAMES46 47 int Number of Frames in Archive
SP4NIRP47 7.072e-08 float [mb] SP4 NIR pressure
SP1BLUT48 162.97 float [K] SP1 blue temperature
SP6NIRP49 2.873e-07 float [mb] SP6 NIR pressure
SP2REDT50 139.99 float [K] SP2 red temperature
SP6REDT51 139.96 float [K] SP6 red temperature
TCSPIDEC52 1.0,0.0,0.0,0.0 str TCS PI settings (P, I (gain, error window, satu
MOONSEP53 147.894 float [deg] Moon Separation
TOTTEFF54 1403.0837 float [s] Total effective exposure time for visit
SP6NIRT55 139.96 float [K] SP6 NIR temperature
SP5NIRT56 139.99 float [K] SP5 NIR temperature
SPLITEXP57 T bool Split exposure part of a visit
SP4NIRT58 139.96 float [K] SP4 NIR temperature
SP7BLUT59 162.97 float [K] SP7 blue temperature
SP1BLUP60 8.153e-08 float [mb] SP1 blue pressure
SP0REDT61 139.99 float [K] SP0 red temperature
SP2BLUP62 7.737e-08 float [mb] SP2 blue pressure
SUNDEC63 9.120592 float [deg] Sun declination at start of exposure
SP3REDP64 7.227e-08 float [mb] SP3 red pressure
SP5BLUP65 1.126e-07 float [mb] SP5 blue pressure
TCSGRA66 0.3 float TCS simple gain (RA)
ACTTEFF67 621.6407 float [s] Actual effective exposure time
SEEING68 1.0943 float [arcsec] ETC seeing
SP5BLUT69 162.97 float [K] SP5 blue temperature
SP8BLUT70 162.97 float [K] SP8 blue temperature
SP3REDT71 139.99 float [K] SP3 red temperature
SP2NIRP72 9.168e-08 float [mb] SP2 NIR pressure
SP1REDP73 6.17e-08 float [mb] SP1 red pressure
VISITIDS74 84509,84510 str List of expids for a visit (same tile)
SP0REDP75 1.14e-07 float [mb] SP0 red pressure
SP1NIRP76 7.269e-08 float [mb] SP1 NIR pressure
SP0BLUT77 162.97 float [K] SP0 blue temperature
SP9REDT78 139.99 float [K] SP9 red temperature
SP7REDT79 139.99 float [K] SP7 red temperature
REQTEFF80 1400.0 float [s] Requested effective exposure time
SP5NIRP81 6.289e-08 float [mb] SP5 NIR pressure
SP6BLUT82 162.97 float [K] SP6 blue temperature
SP7REDP83 6.326e-08 float [mb] SP7 red pressure
SP1NIRT84 139.96 float [K] SP1 NIR temperature
TCSMFRA85 1 int TCS moving filter length (RA)
SP6BLUP86 7.215e-08 float [mb] SP6 blue pressure
SP2BLUT87 163.02 float [K] SP2 blue temperature
SP3NIRT88 139.99 float [K] SP3 NIR temperature
SEQSTART89 2021-04-13T04:52:57.031162 str Start time of sequence processing
SP8REDP90 8.415e-08 float [mb] SP8 red pressure
SP6REDP91 6.486e-08 float [mb] SP6 red pressure
SP7NIRT92 139.99 float [K] SP7 NIR temperature
USESPLIT93 T bool Exposure splits are allowed
SP9BLUT94 163.02 float [K] SP9 blue temperature
SP8NIRT95 139.96 float [K] SP8 NIR temperature
SP0BLUP96 7.565e-08 float [mb] SP0 blue pressure
SP5REDT97 139.99 float [K] SP5 red temperature
SP3NIRP98 3.653e-08 float [mb] SP3 NIR pressure
SP8REDT99 139.99 float [K] SP8 red temperature
NTSSURVY100 sv3 str NTS survey name
TCSGDEC101 0.3 float TCS simple gain (dec)
SP7NIRP102 1.329e-07 float [mb] SP7 NIR pressure
SP3BLUP103 7.078e-08 float [mb] SP3 blue pressure
SP0NIRT104 139.96 float [K] SP0 NIR temperature
PMSEEING105 2.33 float [arcsec] PlateMaker GFAPROC seeing
PMTRANS106 108.64 float [%] PlateMaker GFAPROC transparency
SEQTOT107 2 int Total number of exposures in sequence
SEQID108 2 requests str Exposure sequence identifier
TRANSPAR109 74.6046588181844 float ETC transparency
SLEWANGL110 0.13 float [deg] Slew Angle
CONVERGD111 F bool Positioning loop converged (CNFRC&gt;0.95)
POSCVFRC112 0.4153 float Fraction of converged positioners
SBPROF113 BGS str Profile used by ETC
ETCVERS114 0.1.12-3-g12b54bb str ETC version
MAXTIME115 5400.0 float [s] Maximum exposure time for entire visit (fro
MINTIME116 60.0 float [s] Minimum exposure time (from NTS, used by ET
ETCTEFF117 68.498291 float [s] ETC effective exposure time
ESTTIME118 1088.936 float [s] Estimated exposure time for visit (from ETC
NTSPROG119 BACKUP str NTS program name
ACQFWHM120 1.080625 float [arcsec] FWHM of guide star PSF in acquisition
PMTRANSP121 96.38 float [%] PlateMaker GFAPROC transparency
ETCFRACE122 0.460059 float ETC transparency weighted average of FFRAC (ELG
ETCTRANS123 0.931484 float ETC averaged TRANSP normalized to 1
ETCREAL124 145.539062 float [s] ETC real open shutter time
ETCSPLIT125 1 int ETC split sequence number for this visit
ETCTHRUP126 1.079734 float ETC averaged thruput (PSF profile)
ETCSKY127 1.606062 float ETC averaged, normalized sky camera flux
ETCSEENG128 1.0806 float [arcsec] ETC seeing
ETCPROF129 PSF str ETC source brightness profile
ETCFRACB130 0.204095 float ETC transparency weighted average of FFRAC (BGS
ETCFRACP131 0.651421 float ETC transparency weighted average of FFRAC (PSF
ETCTHRUB132 1.001377 float ETC averaged thruput (BGS profile)
ETCPREV133 0.0 float [s] ETC cummulative t_eff for visit
ETCTHRUE134 1.039635 float ETC averaged thruput (ELG profile)
USESPLITS135 T bool Exposure splits are allowed

Data: FITS image [float32, 2881x500]

HDU1

EXTNAME = IVAR

Inverse variance of flux (1/sigma^2) in units of (10^{-17} erg/s/cm2/A)^-2. Uncertainties comprise statistical uncertainties from the error propagation of the initial CCD pixel variance, the calibration uncertainties, plus an additional term on bright sky lines to account for the imperfect sky subtraction.

Required Header Keywords

Required Header Keywords Table

keywords

KEY Example Value Type Comment

NAXIS1 NAXIS2

2881 500

int int
CHECKSUM ZhXFagUETgUEZgUE str HDU checksum updated 2021-07-16T15:54:37
DATASUM 1428281379 str data unit checksum updated 2021-07-16T15:54:37

Data: FITS image [float32, 2881x500]

HDU2

EXTNAME = MASK

Mask of spectral data; 0=good. See the bitmask documentation </bitmasks> 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

keywords

KEY Example Value Type Comment

NAXIS1 NAXIS2 BSCALE BZERO

2881 500 1 2147483648

int int int int
CHECKSUM UA8FU87FUA7FU77F str HDU checksum updated 2021-07-16T15:54:38
DATASUM 413756347 str data unit checksum updated 2021-07-16T15:54:38

Data: FITS image [int32, 2881x500]

HDU3

EXTNAME = WAVELENGTH

1D array of wavelengths. See the frame WAVELENGTH documentation <frame-hdu3-wavelength> for more details.

Required Header Keywords

Required Header Keywords Table

keywords

KEY Example Value Type Comment

NAXIS1 BUNIT

2881 Angstrom

int str
CHECKSUM jbdTkaZRjabRjaZR str HDU checksum updated 2021-07-16T15:54:38
DATASUM 3106662670 str data unit checksum updated 2021-07-16T15:54:38

Data: FITS image [float64, 2881]

HDU4

EXTNAME = RESOLUTION

Resolution matrix stored as a 3D sparse matrix. See the frame RESOLUTION documentation <frame-hdu4-resolution> for more details.

Required Header Keywords

Required Header Keywords Table

keywords

KEY Example Value Type Comment

NAXIS1 NAXIS2 NAXIS3

2881 11 500

int int int
CHECKSUM fiDjhZAiffAifZAi str HDU checksum updated 2021-07-16T15:54:41
DATASUM 2514154349 str data unit checksum updated 2021-07-16T15:54:41

Data: FITS image [float32, 2881x11x500]

HDU5

EXTNAME = FIBERMAP

Fibermap information combining fiberassign request with actual fiber locations. See also the fibermap documentation </DESI_SPECTRO_REDUX/SPECPROD/preproc/NIGHT/EXPID/fibermap-EXPID> page.

Required Header Keywords

Required Header Keywords Table

keywords

KEY Example Value Type Comment
NAXIS1 393 int length of dimension 1

NAXIS2 TILEID TILERA TILEDEC FIELDROT FA_PLAN FA_HA FA_RUN FA_M_GFA136 FA_M_PET137 FA_M_POS138 REQRA REQDEC FIELDNUM FA_VER FA_SURV LONGSTRN GFA SKY SKYSUPP TARG FAFLAVOR FAOUTDIR PMTIME139 RUNDATE SCTARG140 OBSCON MODULE EXPID EXPFRAME COSMSPLT MAXSPLIT SPLITIDS141 FIBASSGN FLAVOR OBSTYPE SEQUENCE MANIFEST OBJECT PURPOSE PROGRAM PROPID OBSERVER LEAD INSTRUME OBSERVAT OBS-LAT OBS-LONG OBS-ELEV TELESCOP CORRCTOR SEQNUM NIGHT TIMESYS DATE-OBS MJD-OBS OPENSHUT CAMSHUT ST ACQTIME GUIDTIME FOCSTIME SKYTIME WHITESPT ZENITH SEANNEX BEYONDP FIDUCIAL BACKLIT AIRMASS FOCUS VCCD TRUSTEMP PMIRTEMP PMREADY PMCOVER PMCOOL DOMSHUTU DOMSHUTL DOMLIGHH DOMLIGHL DOMEAZ DOMINPOS EQUINOX GUIDOFFR GUIDOFFD MOONDEC MOONRA MOUNTAZ MOUNTDEC MOUNTEL MOUNTHA INCTRL INPOS MNTOFFD MNTOFFR PARALLAC SKYDEC SKYRA TARGTDEC TARGTRA TARGTAZ TARGTEL TRGTOFFD TRGTOFFR ZD TCSST TCSMJD USEETC ACQCAM GUIDECAM FOCUSCAM SKYCAM REQADC ADCCORR ADC1PHI ADC2PHI ADC1HOME ADC2HOME ADC1NREV ADC2NREV ADC1STAT ADC2STAT USESKY USEFOCUS HEXPOS HEXTRIM USEROTAT ROTOFFST ROTENBLD ROTRATE RESETROT USEPOS PETALS POSCYCLE POSONTGT POSONFRC POSDISAB POSENABL POSRMS POSITER POSFRACT POSTOLER POSMVALL USEGUIDR GUIDMODE USEAOS142 USEDONUT USESPCTR SPCGRPHS ILLSPECS143 CCDSPECS144 TDEWPNT TAIRFLOW TAIRITMP TAIROTMP TAIRTEMP TCASITMP TCASOTMP TCSITEMP TCSOTEMP TCIBTEMP TCIMTEMP TCITTEMP TCOSTEMP TCOWTEMP TDBTEMP TFLOWIN TFLOWOUT TGLYCOLI TGLYCOLO THINGES THINGEW TPMAVERT TPMDESIT TPMEIBT TPMEITT TPMEOBT TPMEOTT TPMNIBT TPMNITT TPMNOBT TPMNOTT TPMRTDT TPMSIBT TPMSITT TPMSOBT TPMSOTT TPMSTAT TPMWIBT TPMWITT TPMWOBT TPMWOTT TPCITEMP TPCOTEMP TPR1HUM TPR1TEMP TPR2HUM TPR2TEMP TSERVO TTRSTEMP TTRWTEMP TTRUETBT TTRUETTT TTRUNTBT TTRUNTTT TTRUSTBT TTRUSTST TTRUSTTT TTRUTSBT TTRUTSMT TTRUTSTT TTRUWTBT TTRUWTTT ALARM ALARM-ON BATTERY SECLEFT UPSSTAT INAMPS OUTWATTS COMPDEW COMPHUM COMPAMB COMPTEMP DEWPOINT HUMIDITY PRESSURE OUTTEMP WINDDIR WINDSPD GUST AMNIENTN CFLOOR NWALLIN NWALLOUT WWALLIN WWALLOUT AMBIENTS FLOOR EWALLCMP EWALLCOU ROOF ROOFAMB DOMEBLOW DOMEBUP DOMELLOW DOMELUP DOMERLOW DOMERUP PLATFORM SHACKC SHACKW STAIRSL STAIRSM STAIRSU TELBASE UTILWALL UTILROOM RADESYS TNFSPROC TGFAPROC145 SIMGFAP USEFVC USEFID USEILLUM USEXSRVR USEOPENL STOPGUDR STOPFOCS STOPSKY KEEPGUDR KEEPFOCS KEEPSKY REACQUIR FILENAME EXCLUDED DOSVER OCSVER CONSTVER INIFILE REQTIME FVCTIME146 SIMGFACQ POSCNVGD147 GUIEXPID IGFRMNUM FOCEXPID IFFRMNUM SKYEXPID ISFRMNUM FGFRMNUM FFFRMNUM FSFRMNUM FRAMES148 DELTARA149 DELTADEC150 GSGUIDE0151 GSGUIDE2152 GSGUIDE3153 GSGUIDE5154 GSGUIDE7155 GSGUIDE8156 ARCHIVE157 GUIDEFIL COORDFIL TIME-OBS EXPTIME VCCDON VCCDSEC SPECGRPH SPECID FEEBOX VESSEL FEEVER FEEPOWER FEEDMASK FEECMASK CCDTEMP AMPSECB DAC16 CLOCK8 PRRSECD CCDPREP CLOCK10 DAC17 ORSECB DAC15 ORSECD DIGITIME BIASSECA CLOCK9 CLOCK18 CAMERA CLOCK17 CLOCK5 TRIMSECD DETSECD DAC0 CLOCK15 TRIMSECA BIASSECB CLOCK11 CLOCK12 AMPSECD CLOCK4 PRRSECB CCDSECD CCDTMING TRIMSECB CCDSIZE PGAGAIN PRESECD CLOCK6 CLOCK13 DAC7 DATASECA CRYOTEMP158 OFFSET2 OFFSET6 DELAYS BIASSECD PRRSECA TRIMSECC CLOCK3 CCDNAME DAC9 CCDSECC ORSECA DAC5 CCDSECB DETSECB OFFSET0 SETTINGS DAC11 BIASSECC CASETEMP DAC10 DAC1 DAC14 DETECTOR CDSPARMS OFFSET3 DATASECB ORSECC CRYOPRES159 AMPSECA OFFSET7 DAC4 DATASECC PRESECC CLOCK16 CLOCK1 PRESECB DAC12 DAC8 OFFSET4 DAC2 CCDCFG BLDTIME PRESECA DATASECD DETSECC PRRSECC DAC6 DETSECA CLOCK2 DAC3 OFFSET1 AMPSECC CLOCK7 DAC13 CCDSECA OFFSET5 CLOCK14 CLOCK0 CPUTEMP OBSID PROCTYPE PRODTYPE GAINA SATULEVA OSTEPA OMETHA OVERSCNA OBSRDNA SATUELEA GAINB SATULEVB OSTEPB OMETHB OVERSCNB OBSRDNB SATUELEB GAINC SATULEVC OSTEPC OMETHC OVERSCNC OBSRDNC SATUELEC GAIND SATULEVD OSTEPD OMETHD OVERSCND OBSRDND SATUELED FIBERMIN

500 80616 356.0 29.0 -0.00962199210064233 2022-07-01T00:00:00.000 0.0 2020-03-06T00:00:00 0.4 0.4 0.05 356.0 29.0 0 2.0.0.dev2618 sv1 OGIP 1.0 /data/target/catalogs/dr9/0.47.0/gfas /data/target/catalogs/dr9/0.47.0/skies /data/target/catalogs/gaiadr2/0.47.0/skies-supp /data/target/catalogs/dr9/0.47.0/targets/sv1/resolve/bright/ sv1bgsmws /software/datasystems/users/raichoor/fiberassign-test/desi-sv1-20201218/ 2020-12-18T00:00:00.000 2020-03-06T00:00:00 STD_WD,BGS_ANY,MWS_ANY DARKBRIGHT CI 69022 0 F 0 69022 /data/tiles/SVN_tiles/080/fiberassign-080616.fits science SCIENCE DESI F

Commissioning SV1 BGS+MWS tile 80616 2019B-5000 DESIObserver RunManager DESI KPNO 31.96403 -111.59989 2097.0 KPNO 4.0-m telescope DESI Corrector 1 20201220 UTC 2020-12-21T02:36:32.099838 59204.10870486 2020-12-21T02:36:32.099838 open 01:10:39.210 15.0 5.0 60.0 60.0 F F F F off off 1.060311 1426.5,-501.4,81.0,-2.6,42.3,169.2 ON 11.767 8.925 T open off open open off off 255.166 T 2000.0 -0.052283 0.136634 -8.975162 352.538429 266.70224 28.999221 71.039837 21.769281 T T -15.76 29.32 75.635085 28.999221 355.996551 28.999221 355.996551 267.074049 70.563787 0.0 0.0 19.436213 01:13:18.668 59204.110981 F GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 FOCUS1,FOCUS4,FOCUS6,FOCUS9 SKYCAM0,SKYCAM1 65.78,85.28 T 65.780005 85.279991 F F -1.0 0.0 STOPPED STOPPED T T 1426.5,-501.3,81.0,-2.6,42.3,171.9 0.0,0.0,0.0,0.0,0.0,0.0 T 167.1 T 0.0 F T PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9 1 3626 0.8613 37 4210 0.0171 1 0.95 0.01 T T catalog F T T SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 -16.043 0.0 11.8 11.7 10.65 0.0 10.8 9.3 10.8 0.0 0.0 0.0 0.0 0.0 9.3 0.0 0.0 9.9 9.8 11.4 11.2 8.931 7.0 8.6 8.6 8.5 9.0 8.4 8.9 8.8 9.1 9.0 8.6 8.8 8.2 8.9 ready 8.2 9.1 8.3 8.9 8.5 8.6 0.0 0.0 0.0 0.0 40.0 11.4 11.0 -4.2 11.2 10.9 11.2 10.7 10.8 11.1 11.8 11.8 11.8 10.5 10.9 F F 100.0 5178.0 System Normal - On Line(7) 70.4 5000.0,7200.0,4800.0 -12.9 7.4 19.5 24.5 11.5 10.0 795.0 0.0 55.0 27.3 20.6 13.5 8.9 13.9 9.6 12.9 10.6 14.8 12.6 10.8 10.6 10.3 10.6 10.4 10.7 10.8 10.8 10.6 10.5 10.4 14.4 13.7 10.5 10.4 10.6 9.6 11.1 10.9 FK5 8.1963 7.9212 F T T T T T T T T F F F F /exposures/desi/20201220/00069022/desi-00069022.fits.fz

trunk 1.2 DESI:CURRENT /data/msdos/dos_home/architectures/kpno/desi.ini 300.0 2.0 F F 69022 12 69022 1 69022 1 46 6 5 47 None None (980.05,685.98),(878.97,731.68) (372.65,939.43),(784.50,1529.96) (365.22,1423.83),(249.12,411.52) (848.52,78.26),(516.16,1410.54) (540.95,1848.95),(504.68,831.62) (720.29,552.69),(499.80,465.13) /exposures/desi/20201220/00069022/guide-00069022.fits.fz guide-00069022.fits.fz coordinates-00069022.fits 02:39:11.845920 300.007 2020-12-09T21:23:19.307761 969702.2 8 2 lbnl050 8 v20160312 ON 2134851391 1048575 -135.3315 [4114:2058, 1:2064] 39.9961,39.3162 9.9992,2.9993 [2193:4249, 4194:4194] purge,clear 9.9992,2.9993 20.0008,12.2732 [2193:4249, 2066:2097] 0.0,0.0148 [2193:4249, 2098:2129] 47.5899 [2065:2128, 2:2065] 9.9992,2.9993 9.0,0.9999 r8 9.0,0.9999 9.9999,0.0 [2193:4249, 2130:4193] [2058:4114, 2065:4128] -9.0002,-8.9507 9.9992,2.9993 [8:2064, 2:2065] [2129:2192, 2:2065] 9.9992,2.9993 9.9992,2.9993 [4114:2058, 4128:2065] 9.9999,0.0 [2193:4249, 1:1] [2058:4114, 2065:4128] default_lbnl_timing_20180905.txt [2193:4249, 2:2065] 4194,4256 3 [4250:4256, 2130:4193] 9.9999,0.0 9.9992,2.9993 5.9998,6.028 [8:2064, 2:2065] 162.97 0.4000000059604645,-8.9198 2.0,6.0437 20, 20, 25, 40, 7, 3000, 7, 7, 7, 7 [2129:2192, 2130:4193] [8:2064, 1:1] [8:2064, 2130:4193] -2.0001,3.9999 CCDSM2R -25.0003,-24.768 [1:2057, 2065:4128] [8:2064, 2066:2097] 5.9998,6.0543 [2058:4114, 1:2064] [2058:4114, 1:2064] 0.4000000059604645,-8.9507 detectors_sm_20191211.json -25.0003,-24.8422 [2065:2128, 2130:4193] 59.8142 -25.0003,-24.7086 -9.0002,-8.9198 0.0,0.0594 M1-46 400, 400, 8, 2000 0.4000000059604645,-8.9095 [2193:4249, 2:2065] [8:2064, 2098:2129] 8.897e-08 [1:2057, 1:2064] 2.0,6.028 5.9998,6.028 [8:2064, 2130:4193] [1:7, 2130:4193] 9.9999,3.0 9.9999,0.0 [4250:4256, 2:2065] 0.0,0.0297 -25.0003,-24.9312 2.0,6.0332 -9.0002,-8.9198 default_lbnl_20190717.cfg 0.3547 [1:7, 2:2065] [2193:4249, 2130:4193] [1:2057, 2065:4128] [8:2064, 4194:4194] 5.9998,6.0437 [1:2057, 1:2064] 9.9999,0.0 -9.0002,-8.9095 0.4000000059604645,-8.9198 [1:2057, 4128:2065] -2.0001,3.9999 0.0,0.0148 [1:2057, 1:2064] 2.0,6.049 9.9992,2.9993 9.9999,0.0 60.8086 kp4m20201221t023911 RAW image 1.627 65535.0 0.5704803307307884 AVERAGE 1984.679589024373 2.48375231913931 103396.3713086573 1.482 65535.0 0.5242006066837348 AVERAGE 1980.885980481041 2.179252294581384 94187.1969769271 1.581 65535.0 0.6303264842863427 AVERAGE 1966.11973127108 2.455388696359903 100502.3997048604 1.589 65535.0 0.6243009115278255 AVERAGE 1987.970298453192 2.518301447806098 100976.2301957579 4000

int int float float float str float str float float float float float int str str str str str str str str str str str str str str int int bool int str str str str str bool str str str str str str str str str str float str str int int str str float str str str float float float float bool bool bool bool str str float str str float float bool str str str str str str float bool float float float float float float float float float bool bool float float float float float float float float float float float float str float bool str str str str str bool float float bool bool float float str str bool bool str str bool float bool float bool bool str int int float int int float int float float bool bool str bool bool bool str str str float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float str float float float float float float float float float float float float float float float float float float float float float float float float float bool bool float float str float str float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float float str float float bool bool bool bool bool bool bool bool bool bool bool bool bool str str str float str str float float bool bool int int int int int int int int int int Unknown Unknown str str str str str str str str str str float str float int int str int str str int int float str str str str str str str str str str float str str str str str str str str str str str str str str str str str str str str str int str str str str str float str str str str str str str str str str str str str str str str str str float str str str str str str str str str str str str str str str str str str str str str str float str str str str str str str str str str str str str str str str float str str str float float float str float float float float float float str float float float float float float str float float float float float float str float float float int

length of dimension 2
CHECKSUM jfN5jZK5jdK5jZK5 str HDU checksum updated 2022-02-14T08:25:04

DATASUM BBKGMINC160 BBKGMAXB161 BBKGMINB162 BBKGMIND163 BBKGMAXA164 BBKGMAXC165 BBKGMINA166 BBKGMAXD167 SP2REDP168 SP8BLUP169 SP9NIRT170 SP4REDP171 TCSKDEC172 TCSPIRA173 SCND174 SP4BLUT175 TCSMFDEC176 SP4REDT177 SP9REDP178 FAPRGRM179 SP9NIRP180 SP5REDP181 SP1REDT182 SUNRA183 SP3BLUT184 SP8NIRP185 SP9BLUP186 SBPROF187 TCSKRA188 SKYLEVEL189 FAARGS190 SP4BLUP191 SCNDMTL192 SP2NIRT193 SP7BLUP194 EBVFAC195 SP0NIRP196 SP4NIRP197 SP1BLUT198 SP6NIRP199 SURVEY200 SP2REDT201 GOALTIME202 GOALTYPE203 PMCORR204 MTL205 SP6REDT206 TCSPIDEC207 MOONSEP208 TOTTEFF209 SP6NIRT210 SP5NIRT211 SPLITEXP212 SP4NIRT213 DESIROOT214 SP7BLUT215 SP1BLUP216 SP0REDT217 SP2BLUP218 SUNDEC219 SP3REDP220 SP5BLUP221 TCSGRA222 ACTTEFF223 SEEING224 SP5BLUT225 SP8BLUT226 SP3REDT227 SP2NIRP228 SP1REDP229 VISITIDS230 SP0REDP231 SP1NIRP232 SP0BLUT233 SP9REDT234 SP7REDT235 REQTEFF236 SP5NIRP237 SP6BLUT238 SP7REDP239 SP1NIRT240 MTLTIME241 TCSMFRA242 SP6BLUP243 SP2BLUT244 SP3NIRT245 SEQSTART246 SP8REDP247 SP6REDP248 SP7NIRT249 MINTFRAC250 USESPLIT251 SP9BLUT252 SP8NIRT253 SP0BLUP254 SP5REDT255 SP3NIRP256 SP8REDT257 NTSSURVY258 TCSGDEC259 SP7NIRP260 SP3BLUP261 SP0NIRT262 PMSEEING263 PMTRANS264 SEQTOT265 SEQID266 SCSTD267 TARG2268 SIMGFAQ269 USESPLITS270 TRANSPAR271 TOO272 SLEWANGL273 CONVERGD274 POSCVFRC275 FASCRIPT276 SVNDM277 SVNMTL278 ETCVERS279 MAXTIME280 MINTIME281 ETCTEFF282 ESTTIME283 NTSPROG284 ACQFWHM285 PMTRANSP286 ETCFRACE287 ETCTRANS288 ETCREAL289 ETCSPLIT290 ETCTHRUP291 ETCSKY292 ETCSEENG293 ETCPROF294 ETCFRACB295 ETCFRACP296 ETCTHRUB297 ETCPREV298 ETCTHRUE299 SHFTFOCS300 TARG3301 ROLE302 DR303 PRIORITY304 DTVER305 M31CEN306

2198099738 -0.3364347403909462 0.8957266211094218 -0.04275468459496062 -0.6146250452424397 0.6126625684320178 0.4926723425188555 -0.4336472364870191 0.8117108701207832 6.448e-08 8.153e-08 139.96 5.168e-08 0.3 0.003 0.00003 1.0,0.0,0.0,0.0 DESIROOT/target/catalogs/dr9/0.57.0/targets/sv3/secondary/dark/sv3targets-dark-secondary.fits 163.02 1 140.03 8.485e-08 DARK 5.579e-08 4.908e-08 139.96 21.738482 163.02 4.831e-08 1.208e-07 ELG 0.3 0.003 0.00003 1.133 --doclean n --dr dr9 --dtver 0.57.0 --gaiadr gaiadr2 --goaltime 1200.0 --mintfrac 0.9 --pmcorr n --pmtime 2021-04-10T21:28:37 --program DARK --rundate 2021-04-10T21:28:37 --sbprof ELG --sky_per_petal 40 --standards_per_petal 10 --survey sv3 --tiledec 0.056 --tileid 58 --tilera 182.994 6.109e-08 DESIROOT/survey/ops/surveyops/trunk/mtl/sv3/secondary/dark 139.96 9.93799999999999e-08 1.04684301894635 5.934e-08 7.072e-08 162.97 2.873e-07 sv3 139.99 1200.0 DARK n DESIROOT/survey/ops/surveyops/trunk/mtl/sv3/dark 139.96 1.0,0.0,0.0,0.0 147.894 1403.0837 139.96 139.99 T 139.96 /global/cfs/cdirs/desi 162.97 8.153e-08 139.99 7.737e-08 9.120592 7.227e-08 1.126e-07 0.3 621.6407 1.0943 162.97 162.97 139.99 9.168e-08 6.17e-08 84509,84510 1.14e-07 7.269e-08 162.97 139.99 139.99 1400.0 6.289e-08 162.97 6.326e-08 139.96 2021-04-10T21:28:37 1 7.21499999999999e-08 163.02 139.99 2021-04-13T04:52:57.031162 8.415e-08 6.486e-08 139.99 0.9 T 163.02 139.96 7.565e-08 139.99 3.653e-08 139.99 sv3 0.3 1.329e-07 7.078e-08 139.96 2.33 108.64 2 2 requests STD_WD,STD_BRIGHT DESIROOT/target/catalogs/gaiadr2/0.50.0/targets/sv1/resolve/supp F T 74.6046588181844 /data/afternoon_planning/surveyops/trunk/mtl/sv3/ToO/ToO.ecsv 0.13 F 0.4153 /software/datasystems/desiconda/20200924/code/fiberassign/2.5.0/bin/fba_launch 136362 476 0.1.12-3-g12b54bb 5400.0 60.0 68.498291 1088.936 BACKUP 1.080625 96.38 0.460059 0.931484 145.539062 1 1.079734 1.606062 1.0806 PSF 0.204095 0.651421 1.001377 0.0 1.039635 220.0 DESIROOT/target/catalogs/dr9/0.51.0/targets/sv1/resolve/bright GUIDERMAN dr9 default 0.50.0 n

str float float float float float float float float float float float float str str str float int float float str float float float float float float float str str float str float str float float float float float float float str float float str str str float str float float float float bool float str float float float float float float float float float float float float float float float str float float float float float float float float float float str int float float float str float float float float bool float float float float float float str float float float float float float int str str str bool bool float str float bool float str str str str float float float float str float float float float float int float float float str float float float float float float str str str str str str

data unit checksum updated 2022-02-14T08:25:04

Required Data Table Columns

columns

Name Type Units Description

TARGETID PETAL_LOC DEVICE_LOC LOCATION FIBER FIBERSTATUS

int64 int16 int32 int64 int32 int32

Unique DESI target ID Petal location [0-9] Device location on focal plane [0-523] Location on the focal plane PETAL_LOC*1000 + DEVICE_LOC Fiber ID on the CCDs [0-4999] 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 FA_TARGET FA_TYPE OBJTYPE

float32 int64 binary char[3]

Angstrom

Requested wavelength at which targets should be centered on fibers Targeting bit internally used by fiberassign (linked with FA_TYPE) Fiberassign internal target type (science, standard, sky, safe, suppsky) Object type: TGT, SKY, NON, BAD
FIBERASSIGN_X float32 mm Fiberassign expected CS5 X location on focal plane

FIBERASSIGN_Y PRIORITY SUBPRIORITY OBSCONDITIONS RELEASE BRICKID BRICK_OBJID MORPHTYPE

float32 int32 float64 int32 int16 int32 int32 char[4]

mm

Fiberassign expected CS5 Y location on focal plane Target current priority Random subpriority [0-1) to break assignment ties Bitmask of allowed observing conditions Imaging surveys release ID Brick ID from tractor input Imaging Surveys OBJID on that brick 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 MASKBITS REF_ID REF_CAT

float32 int16 int64 char[2]

nanomaggy^-2

Inverse variance of FLUX_Z (AB) Bitwise mask from the imaging indicating potential issue or blending Tyc1*1,000,000+Tyc2*10+Tyc3 for Tycho-2; “sourceid” for Gaia DR2 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 BRICKNAME

float32 char[8]

mas

Reference catalog parallax 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 SERSIC

float32 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 Power-law index for the Sersic profile model (MORPHTYPE=”SER”)

SHAPE_R SHAPE_E1 SHAPE_E2 PHOTSYS PRIORITY_INIT NUMOBS_INIT SV1_DESI_TARGET307 SV1_BGS_TARGET308 SV1_MWS_TARGET309 SV1_SCND_TARGET310 DESI_TARGET BGS_TARGET MWS_TARGET SCND_TARGET311

float32 float32 float32 char[1] int64 int64 int64 int64 int64 int64 int64 int64 int64 int64

arcsec

Half-light radius of galaxy model (&gt;0) Ellipticity component 1 of galaxy model for galaxy type MORPHTYPE Ellipticity component 2 of galaxy model for galaxy type MORPHTYPE &#x27;N&#x27; for the MzLS/BASS photometric system, &#x27;S&#x27; for DECaLS Target initial priority from target selection bitmasks and OBSCONDITIONS Initial number of observations for target calculated across target selection bitmasks and OBSCONDITIONS DESI (dark time program) target selection bitmask for SV1 BGS (bright time program) target selection bitmask for SV1 MWS (bright time program) target selection bitmask for SV1 Secondary target selection bitmask for SV1 DESI (dark time program) target selection bitmask BGS (Bright Galaxy Survey) target selection bitmask Milky Way Survey targeting bits Target selection bitmask for secondary programs
PLATE_RA float64 deg Barycentric Right Ascension in ICRS to be used by PlateMaker

PLATE_DEC NUM_ITER

float64 int64

deg

Barycentric Declination in ICRS to be used by PlateMaker 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 PSF_TO_FIBER_SPECFLUX SV3_MWS_TARGET312 SV3_SCND_TARGET313 SV3_DESI_TARGET314 SV3_BGS_TARGET315 SV2_DESI_TARGET316 SV2_BGS_TARGET317 SV2_MWS_TARGET318 SV2_SCND_TARGET319 CMX_TARGET320

float64 float64 int64 int64 int64 int64 int64 int64 int64 int64 int64

s

Length of time shutter was open fraction of light from point-like source captured by 1.5 arcsec diameter fiber given atmospheric seeing MWS (bright time program) target selection bitmask for SV3 Secondary target selection bitmask for SV3 DESI (dark time program) target selection bitmask for SV3 BGS (bright time program) target selection bitmask for SV3 DESI (dark time program) target selection bitmask for SV2 BGS (bright time program) target selection bitmask for SV2 MWS (bright time program) target selection bitmask for SV2 Secondary target selection bitmask for SV2 Target selection bitmask for commissioning

HDU6

EXTNAME = CHI2PIX

chi2 of PSF fit to CCD data per flux bin. Large values indicate poor fits, e.g. due to unmasked cosmics or other CCD defects.

Required Header Keywords

Required Header Keywords Table

keywords

KEY Example Value Type Comment
NAXIS1 2881 int Number of wavelengths
NAXIS2 500 int Number of spectra
CHECKSUM cBAJe94GcAAGc93G str HDU checksum updated 2021-07-16T15:54:42
DATASUM 3947425746 str data unit checksum updated 2021-07-16T15:54:42

Data: FITS image [float32, 2881x500]

HDU7

EXTNAME = SCORES

Scores / metrics measured from the spectra for use in QA and systematics studies.

Required Header Keywords

Required Header Keywords Table

keywords

KEY Example Value Type Comment
NAXIS1 160 int length of dimension 1
NAXIS2 500 int length of dimension 2
CHECKSUM YanYbZkXZakXaYkX str HDU checksum updated 2021-07-16T15:54:42
DATASUM 3675881366 str data unit checksum updated 2021-07-16T15:54:42

Required Data Table Columns

Although all of the columns below are marked as optional, each file will have the complete set of _C columns where _C (for camera) represents _B, _R, or _Z. These are designed such that the SCORES tables from individual frames can be later combined into a summary table for the exposure.

columns

Name Type Units Description

SUM_RAW_COUNT_Z321 MEDIAN_RAW_COUNT_Z322 MEDIAN_RAW_SNR_Z323 SUM_FFLAT_COUNT_Z324 MEDIAN_FFLAT_COUNT_Z325 MEDIAN_FFLAT_SNR_Z326 SUM_SKYSUB_COUNT_Z327 MEDIAN_SKYSUB_COUNT_Z328 MEDIAN_SKYSUB_SNR_Z329 SUM_CALIB_COUNT_Z330 MEDIAN_CALIB_COUNT_Z331 MEDIAN_CALIB_SNR_Z332 TSNR2_GPBDARK_Z333 TSNR2_ELG_Z334 TSNR2_GPBBRIGHT_Z335 TSNR2_LYA_Z336 TSNR2_BGS_Z337 TSNR2_GPBBACKUP_Z338 TSNR2_QSO_Z339 TSNR2_LRG_Z340 TSNR2_LRG_B341 TSNR2_GPBDARK_B342 MEDIAN_SKYSUB_SNR_B343 MEDIAN_FFLAT_SNR_B344 TSNR2_ELG_B345 TSNR2_BGS_B346 MEDIAN_CALIB_SNR_B347 MEDIAN_FFLAT_COUNT_B348 TSNR2_QSO_B349 MEDIAN_SKYSUB_COUNT_B350 MEDIAN_RAW_COUNT_B351 TSNR2_GPBBRIGHT_B352 TSNR2_LYA_B353 SUM_SKYSUB_COUNT_B354 MEDIAN_CALIB_COUNT_B355 TSNR2_GPBBACKUP_B356 SUM_FFLAT_COUNT_B357 SUM_RAW_COUNT_B358 SUM_CALIB_COUNT_B359 MEDIAN_RAW_SNR_B360 SUM_CALIB_COUNT_R361 MEDIAN_RAW_COUNT_R362 TSNR2_QSO_R363 TSNR2_LRG_R364 TSNR2_LYA_R365 TSNR2_GPBBRIGHT_R366 SUM_SKYSUB_COUNT_R367 SUM_RAW_COUNT_R368 SUM_FFLAT_COUNT_R369 MEDIAN_FFLAT_SNR_R370 TSNR2_BGS_R371 TSNR2_GPBBACKUP_R372 MEDIAN_SKYSUB_SNR_R373 MEDIAN_CALIB_SNR_R374 MEDIAN_FFLAT_COUNT_R375 MEDIAN_RAW_SNR_R376 MEDIAN_SKYSUB_COUNT_R377 MEDIAN_CALIB_COUNT_R378 TSNR2_GPBDARK_R379 TSNR2_ELG_R380

float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64 float64

Sum of raw counts in Z camera Median of raw counts in Z camera Median(raw signal/noise) in Z camera Sum of fiber-flatfielded counts Z camera Median of fiber-flatfielded counts in Z camera Median(S/N) of fiberflatfielded counts in Z camera Sum of sky-subtracted counts in Z camera Median of sky-subtracted counts in Z camera Median(S/N) of sky-subtracted counts in Z camera Sum of calibrated flux in Z camera Median of calibrated flux in Z camera Median(S/N) of calibrated flux in Z camera template (S/N)^2 for dark targets in guider pass band on Z ELG Z template (S/N)^2 template (S/N)^2 for bright targets in guider pass band on Z LYA Z template (S/N)^2 BGS Z template (S/N)^2 from calc_frame_tsnr QSO Z template (S/N)^2 LRG Z template (S/N)^2 LRG B template (S/N)^2 template (S/N)^2 for dark targets in guider pass band on B Median(S/N) of sky-subtracted counts in B camera Median(S/N) of fiberflatfielded counts in B camera ELG B template (S/N)^2 BGS B template (S/N)^2 Median(S/N) of calibrated flux in B camera Median of fiber-flatfielded counts in B camera QSO B template (S/N)^2 Median of sky-subtracted counts in B camera Median of raw counts in B camera template (S/N)^2 for bright targets in guider pass band on B LYA B template (S/N)^2 Sum of sky-subtracted counts in B camera Median of calibrated flux in B camera from calc_frame_tsnr Sum of fiber-flatfielded counts B camera Sum of raw counts in B camera Sum of calibrated flux in B camera Median(raw signal/noise) in B camera Sum of calibrated flux in R camera Median of raw counts in R camera QSO R template (S/N)^2 LRG R template (S/N)^2 LYA R template (S/N)^2 template (S/N)^2 for bright targets in guider pass band on R Sum of sky-subtracted counts in R camera Sum of raw counts in R camera Sum of fiber-flatfielded counts R camera Median(S/N) of fiberflatfielded counts in R camera BGS R template (S/N)^2 from calc_frame_tsnr Median(S/N) of sky-subtracted counts in R camera Median(S/N) of calibrated flux in R camera Median of fiber-flatfielded counts in R camera Median(raw signal/noise) in R camera Median of sky-subtracted counts in R camera Median of calibrated flux in R camera template (S/N)^2 for dark targets in guider pass band on R ELG R template (S/N)^2

Notes and Examples

The TSNR2 columns are for "template signal-to-noise squared". These measure the signal-to-noise squared weighted by which wavelengths matter most for different target types, e.g. QSOs weight blue wavelengths more while ELGs weight redder wavelengths more due to the wavelengths of the observed emission lines. For more details, see section 4.14 of Guy et al 2023.

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 </DESI_TARGET/fiberassign/tiles/TILES_VERSION/TILEXX/fiberassign-TILEID> design step; thus the following columns can have different values than in the desitarget products </DESI_TARGET/TARG_DIR/DR/VERSION/targets/PHASE/RESOLVE/OBSCON/PHASEtargets-OBSCON-RESOLVE-hp-HP>: 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).

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