=========================== biasnight-CAMERA-NIGHT.fits =========================== :Summary: Master bias frame for the preprocessing of the night data :Naming Convention: ``biasnight-CAMERA-NIGHT.fits.gz``, where ``CAMERA`` is *e.g.*, "b0", "r5", etc. and ``NIGHT`` is the observation night in YYYYMMDD format. :Regex: ``biasnight-[brz][0-9]-[0-9]{8}\.fits\.gz`` :File Type: FITS, 20 MB Contents ======== ====== ======= ===== =================== Number EXTNAME Type Contents ====== ======= ===== =================== HDU0_ BIAS IMAGE bias image ====== ======= ===== =================== FITS Header Units ================= HDU0 ---- EXTNAME = BIAS 2D image with the master bias to subtract to the raw images of the night. Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords table .. rst-class:: keywords ======== ===================================== ===== ======================================= KEY Example Value Type Comment ======== ===================================== ===== ======================================= NAXIS1 4256 int NAXIS2 4194 int TELESCOP KPNO 4.0-m telescope str Telescope name INSTRUME DESI str Instrument name SPECGRPH 8 int Spectrograph logical name (SP) SPECID 2 int Spectrograph serial number (SM) DETECTOR M1-42 str Detector (ccd) identification CAMERA z8 str Camera name CCDNAME CCDSM2Z str CCD name CCDPREP purge,clear str CCD prep actions CCDSIZE 4194,4256 str CCD size in pixels (rows, columns) CCDTEMP -136.0659 float [deg C] CCD controller CCD temperature CPUTEMP 57.3633 float [deg C] CCD controller CPU temperature CASETEMP 57.3533 float [deg C] CCD controller case temperature CCDTMING flatdark_lbnl_timing.txt str CCD timing file CCDCFG default_lbnl_20210128.cfg str CCD configuration file SETTINGS detectors_sm_20210128.json str Name of DESI CCD settings file VESSEL 9 int Cryostat serial number FEEVER v20160312 str CCD Controller version FEEBOX lbnl055 str CCD Controller serial number PRESECA [1:7, 2:2065] str Prescan section for quadrant A PRRSECA [8:2064, 1:1] str Row prescan section for quadrant A DATASECA [8:2064, 2:2065] str Data section for quadrant A TRIMSECA [8:2064, 2:2065] str Trim section for quadrant A BIASSECA [2065:2128, 2:2065] str Bias section for quadrant A ORSECA [8:2064, 2066:2097] str Row overscan section for quadrant A CCDSECA [1:2057, 1:2064] str CCD section for quadrant A DETSECA [1:2057, 1:2064] str Detector section for quadrant A AMPSECA [1:2057, 1:2064] str AMP section for quadrant A PRESECB [4250:4256, 2:2065] str Prescan section for quadrant B PRRSECB [2193:4249, 1:1] str Row prescan section for quadrant B DATASECB [2193:4249, 2:2065] str Data section for quadrant B TRIMSECB [2193:4249, 2:2065] str Trim section for quadrant B BIASSECB [2129:2192, 2:2065] str Bias section for quadrant B ORSECB [2193:4249, 2066:2097] str Row overscan section for quadrant B CCDSECB [2058:4114, 1:2064] str CCD section for quadrant B DETSECB [2058:4114, 1:2064] str Detector section for quadrant B AMPSECB [4114:2058, 1:2064] str AMP section for quadrant B PRESECC [1:7, 2130:4193] str Prescan section for quadrant C PRRSECC [8:2064, 4194:4194] str Row prescan section for quadrant C DATASECC [8:2064, 2130:4193] str Data section for quadrant C TRIMSECC [8:2064, 2130:4193] str Trim section for quadrant C BIASSECC [2065:2128, 2130:4193] str Bias section for quadrant C ORSECC [8:2064, 2098:2129] str Row overscan section for quadrant C CCDSECC [1:2057, 2065:4128] str CCD section for quadrant C DETSECC [1:2057, 2065:4128] str Detector section for quadrant C AMPSECC [1:2057, 4128:2065] str AMP section for quadrant C PRESECD [4250:4256, 2130:4193] str Prescan section for quadrant D PRRSECD [2193:4249, 4194:4194] str Row prescan section for quadrant D DATASECD [2193:4249, 2130:4193] str Data section for quadrant D TRIMSECD [2193:4249, 2130:4193] str Trim section for quadrant D BIASSECD [2129:2192, 2130:4193] str Bias section for quadrant D ORSECD [2193:4249, 2098:2129] str Row bias section for quadrant D CCDSECD [2058:4114, 2065:4128] str CCD section for quadrant D DETSECD [2058:4114, 2065:4128] str Detector section for quadrant D AMPSECD [4114:2058, 4128:2065] str AMP section for quadrant D DAC0 -9.0002,-9.0331 str [V] set value, measured value DAC1 -9.0002,-8.9816 str [V] set value, measured value DAC2 -9.0002,-8.961 str [V] set value, measured value DAC3 -9.0002,-8.9816 str [V] set value, measured value DAC4 5.9998,6.0437 str [V] set value, measured value DAC5 5.9998,6.0595 str [V] set value, measured value DAC6 5.9998,5.9964 str [V] set value, measured value DAC7 5.9998,6.0069 str [V] set value, measured value DAC8 -25.0003,-25.0796 str [V] set value, measured value DAC9 -25.0003,-25.3467 str [V] set value, measured value DAC10 -25.0003,-25.0648 str [V] set value, measured value DAC11 -25.0003,-25.3467 str [V] set value, measured value DAC12 0.0,-0.0148 str [V] set value, measured value DAC13 0.0,-0.0297 str [V] set value, measured value DAC14 0.0,-0.0297 str [V] set value, measured value DAC15 0.0,-0.0148 str [V] set value, measured value DAC16 39.9961,39.4548 str [V] set value, measured value DAC17 20.0008,12.2854 str [V] set value, measured value CLOCK0 9.9999,0.0 str [V] high rail, low rail CLOCK1 9.9999,0.0 str [V] high rail, low rail CLOCK2 9.9999,0.0 str [V] high rail, low rail CLOCK3 -2.0001,3.9999 str [V] high rail, low rail CLOCK4 9.9999,0.0 str [V] high rail, low rail CLOCK5 9.9999,0.0 str [V] high rail, low rail CLOCK6 9.9999,0.0 str [V] high rail, low rail CLOCK7 -2.0001,3.9999 str [V] high rail, low rail CLOCK8 9.9992,2.9993 str [V] high rail, low rail CLOCK9 9.9992,2.9993 str [V] high rail, low rail CLOCK10 9.9992,2.9993 str [V] high rail, low rail CLOCK11 9.9992,2.9993 str [V] high rail, low rail CLOCK12 9.9992,2.9993 str [V] high rail, low rail CLOCK13 9.9992,2.9993 str [V] high rail, low rail CLOCK14 9.9992,2.9993 str [V] high rail, low rail CLOCK15 9.9992,2.9993 str [V] high rail, low rail CLOCK16 9.9999,3.0 str [V] high rail, low rail CLOCK17 9.0,0.9999 str [V] high rail, low rail CLOCK18 9.0,0.9999 str [V] high rail, low rail OFFSET0 0.4000000059604645,-9.0434 str [V] set value, measured value OFFSET1 0.4000000059604645,-8.9816 str [V] set value, measured value OFFSET2 0.4000000059604645,-8.961 str [V] set value, measured value OFFSET3 0.4000000059604645,-8.9713 str [V] set value, measured value OFFSET4 2.0,6.0385 str [V] set value, measured value OFFSET5 2.0,6.0648 str [V] set value, measured value OFFSET6 2.0,6.0017 str [V] set value, measured value OFFSET7 2.0,6.0017 str [V] set value, measured value DELAYS 20, 20, 25, 40, 7, 3000, 7, 7, 400, 7 str [10] Delay settings CDSPARMS 400, 400, 8, 2000 str CDS parameters PGAGAIN 3 int Controller gain OCSVER 1.2 float OCS software version DOSVER trunk str DOS software version CONSTVER DESI:CURRENT str Constants version BUNIT adu str NIGHT 20210407 int ======== ===================================== ===== ======================================= Data: FITS image [float32, 4256x4194]