*** PrimaryHDU *** SIMPLE = T / file does conform to FITS standard BITPIX = 16 / number of bits per data pixel NAXIS = 0 / number of data axes EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H DATA-TYP= 'FLAT ' / Subaru-style exposure type FRAMEID = 'PFSB11092123' / Sequence number in archive EXP-ID = 'PFSE00110921' / PFS exposure visit number DETECTOR= 'n2 ' / Name of the detector/CCD GAIN = 9999. / [e-/ADU] AD conversion factor DET-TMP = 100.9999 / [K] Detector temperature DET-ID = 5 / Subaru/DRP FPA ID for this module and arm DISPAXIS= 1 / Dispersion axis (along rows) DISPERSR= 'VPH_n_1007_1107nm' / Disperser name (arm_fringe/mm_centralNm) WAV-MIN = 940. / [nm] Blue edge of the bandpass WAV-MAX = 1260. / [nm] Red edge of the bandpass WAVELEN = 1107. / [nm] Middle of the bandpass SLIT = 'PFS ' / Identifier of entrance slit SLT-LEN = 1.05 / [arcsec] Fiber diameter SLT-WID = 1.05 / [arcsec] Fiber diameter COMMENT ################################ PFS main IDs W_VISIT = 110921 / PFS exposure visit number W_ARM = 3 / Spectrograph arm 1=b, 2=r, 3=n, 4=medRed W_SPMOD = 2 / Spectrograph module. 1-4 at Subaru W_CAM = 'n2 ' / PFS camera name W_SITE = 'S ' / PFS DAQ location: Subaru, Jhu, Lam, Asiaa W_PFDSGN= 1595054572579411281 / pfsDesign, from pfi W_PFDSNM= 'cobraHome' / pfsDesign name, from pfi W_LGTSRC= 'pfi ' / Light source for this module COMMENT ################################ Time cards EXPTIME = 45. / [s] illumination time from shutter or lamps. DARKTIME= 86.8564 / [s] ramp time, normally W_H4FRMT*W_H4NRED TIMESYS = 'UTC ' / Time System used in the header DATE-OBS= '2024-05-29' / [YMD] Observation start MJD-STR = 60459.18177866 / [d] MJD at exposure start UT-STR = '04:21:45.676' / [HMS] UT at exposure start HST-STR = '18:21:45.676' / [HMS] HST at exposure start LST-STR = '10:28:37.503' / [HMS] LST at exposure start MJD = 60459.18203908 / [d] MJD at mid-exposure UT = '04:22:08.176' / [HMS] UT at mid-exposure HST = '18:22:08.176' / [HMS] HST at mid-exposure LST = '10:29:00.064' / [HMS] LST at mid-exposure MJD-END = 60459.18229949 / [d] MJD at exposure end UT-END = '04:22:30.676' / [HMS] UT at exposure end HST-END = '18:22:30.676' / [HMS] HST at exposure end LST-END = '10:29:22.626' / [HMS] LST at exposure end COMMENT ################################ Cards from pfilamps W_RVPFIL= '1.3.5 ' / pfilamps actor version W_AITNEO= F / Neon lamp state W_AITARG= F / Argon lamp state W_AITKRY= F / Krypton lamp state W_AITXEN= F / Xenon lamp state W_AITHGC= F / Hgcd lamp state W_AITQTH= T / Halogen lamp state W_CLNEOT= 0 / [s] Neon lamp on time W_CLARGT= 0 / [s] Argon lamp on time W_CLKRYT= 0 / [s] Krypton lamp on time W_CLXENT= 0 / [s] Xenon lamp on time W_CLHGCT= 0 / [s] Hgcd lamp on time W_CLQTHT= 45. / [s] Halogen lamp on time W_ENIQTH= F / Halogen lamp state W_ILQTHT= 0 / [s] Halogen lamp on time W_ENIARG= F / Argon lamp state W_ILARGT= 0 / [s] Argon lamp on time W_ENIHGA= F / Hgar lamp state W_ILHGAT= 0. / [s] Hgar lamp on time W_ENIKRY= F / Krypton lamp state W_ILKRYT= 0 / [s] Krypton lamp on time W_ENINEO= F / Neon lamp state W_ILNEOT= 0 / [s] Neon lamp on time W_RNGQTH= F / HSC ring lamps state W_RNGLVL= 0. / [V] Average HSC ring lamp level COMMENT ################################ Cards from scr W_RVSCR = '1.0.2 ' / SCR Actor version W_CRRHUM= 24.83 / [%] Relative humidity inside clean room W_CRTEMP= 3.96133275 / [degC] Clean room air temperature W_CRSETP= 3.90544642857143 / [degC] Clean room setpoint temperature W_CRLOOP= 'on ' / Clean room operational state W_CRLGHT= 'off ' / State of ceiling lights COMMENT ################################ Cards from iic W_RVIIC = '2.5.17 ' / IIC actor version COMMENT ################################ Cards from sps W_RVSPS = '1.6.16b ' / SPS actor version W_BIAPOW= 0 / [percent] bia power(%) W_BIAPER= 1000 / [ms] bia strobe period W_BIADTY= 100 / [percent] bia strobe duty cycle W_BIAON = 1000 / [ms] bia pulse high duration W_BIAOFF= 0 / [ms] bia pulse low duration COMMENT ################################ Cards from gen2 W_RVGEN2= '1.5.13-dirty' / Gen2 actor version W_RVG2LB= 'no available value' / Gen2 library version W_G2SERV= 'no available value' / Internal name of Gen2 server used by PFS W_G2SVIP= 'no available value' / IP address of Gen2 server used by PFS OBSERVAT= 'NAOJ ' / Observatory TELESCOP= 'Subaru ' / Telescope INSTRUME= 'PFS ' / Instrument name PROP-ID = 'o24016 ' / Proposal ID OBS-MOD = 'SPEC ' / Observation Mode OBS-ALOC= 'Observation' / Observation or Standby OBSERVER= '\"Moritani, Yabe, Lupton, Loomis\"' / Observers OBJECT = 'flat ' / Internal id for this light source RA = '10:26:07.13' / [HMS] RA of telescope pointing DEC = '+19:57:03.03' / [DMS] DEC of telescope pointing RA2000 = '10:26:07.13' / [HMS] RA of telescope pointing DEC2000 = '+19:57:03.03' / [DMS] DEC of telescope pointing RA_CMD = '19:21:01.36' / [HMS] RA of nominal telescope pointing DEC_CMD = '+41:01:00.85' / [DMS] DEC of nominal telescope pointing W_RAOFF = 0. / [arcsec] RA offset W_DECOFF= 0. / [arcsec] Dec offset W_DTHRA = 0. / [arcsec] Cumulative RA dither offset W_DTHDEC= 0. / [arcsec] Cumulative Dec dither offset W_DTHPA = 0. / [arcsec] Cumulative posAngle dither offset W_AGRA = 0. / [arcsec] Cumulative RA guide offset W_AGDEC = 0. / [arcsec] Cumulative Dec guide offset W_AGINR = -26.671 / [arcsec] Cumulative rotator guide offset WEATHER = 'Fine ' / Weather conditions, per observer SEEING = 9998. / [arcsec] FWHM of star at telescope focus TRANSP = 1. / [frac] Sky transparency RADESYS = 'FK5 ' / The equatorial coordinate system LONPOLE = 180. / [deg] North Pole of the coordinate system EQUINOX = 2000. / [year] Standard FK5 AZIMUTH = 90.0245 / [deg] Azimuth position ALTITUDE= 89.9199 / [deg] Altitude position ZD = 0.0800518799999992 / [deg] Zenith Distance AIRMASS = 1. / Typical airmass during exposure INST-PA = 92.405 / [deg] Inst pos angle at flange INSROT = 0.001699 / [deg] Inst rotation angle TELFOCUS= 'P_OPT2 ' / Focus where inst. is attached FOC-POS = 'PRIME ' / Focus where instrument is attached. FOC-VAL = 3.2 / [um] Focus encoder value ADC-TYPE= 'IN ' / ADC name ADC-STR = 0.01 / [mm] ADC pos angle DOM-HUM = 37. / [%] Dome humidity DOM-PRS = 623.3 / [hPa] Dome pressure DOM-TMP = 281.75 / [K] Dome temperature DOM-WND = 0. / [m/s] Dome wind speed OUT-HUM = 42.4 / [%] Outside humidity OUT-PRS = 623.3 / [hPa] Outside pressure OUT-TMP = 281.35 / [K] Outside temperature OUT-WND = 2. / [m/s] Outside wind speed M2-POS1 = -2.306373 / [mm] M2 X position M2-POS2 = -4.779982 / [mm] M2 Y position M2-POS3 = 4.718005 / [mm] M2 Z position M2-ANG1 = 1.2003 / [deg] M2 X angle M2-ANG2 = 2.4999 / [deg] M2 Y angle M2-ANG3 = -0.0001 / [deg] M2 Z angle W_M2OFF1= -1.6 / [mm] M2 X offset W_M2OFF2= -2.5 / [mm] M2 Y offset W_M2OFF3= 3.2 / [mm] M2 Z offset AUTOGUID= 'OFF ' / State of autoguider MOON-EL = -9999.99 / [deg] Moon elevation at exposure start MOON-SEP= -9999.99 / [deg] Moon separation at exposure start MOON-ILL= -9999.99 / Moon elevation at exposure start OBS-MTHD= 'Classical' / Observing method (classical vs. queue) W_TSHUTR= 'closed ' / position of the dome shutters W_TDLGHT= 0 / which dome lamps are on W_TFFSFP= 17. / [m] front edge of FF screen W_TFFSRP= 1.5 / [m] rear edge of FF screen W_TFFPOS= 'flat_screen' / name of known position W_TFF1ST= 9998 / status of ring lamp #1 W_TFF2ST= 9998 / status of ring lamp #2 W_TFF3ST= 9998 / status of ring lamp #3 W_TFF4ST= 9998 / status of ring lamp #4 W_TFF1VC= 0. / [V] Command to ring lamp #1 W_TFF2VC= 0. / [V] Command to ring lamp #2 W_TFF3VC= 0. / [V] Command to ring lamp #3 W_TFF4VC= 0. / [V] Command to ring lamp #4 W_TFF1VV= 0. / [V] Measured ring lamp #1 W_TFF2VV= 0. / [V] Measured ring lamp #2 W_TFF3VV= 0. / [V] Measured ring lamp #3 W_TFF4VV= 0. / [V] Measured ring lamp #4 COMMENT ################################ Cards from enu_sm2 W_RVENU = '1.5.20 ' / ENU actor version W_SRFCA = 'FCA4 ' / FCA ID/Number W_ENFCAS= 'OFF ' / slit-hexapod operational state-machine W_ENFCAT= 'SHUTDOWN' / slit-hexapod action state-machine W_ENFCAM= 'operation' / fca operation mode W_ENFCAX= 0.00027 / [mm] FCA FOCUS position, wrt optical axis (+ to W_ENFCAY= -0.00016 / [mm] FCA_Y position, wrt wavelength axis (+ tow W_ENFCAZ= 0.00025 / [mm] FCA_Z position, wrt fibers axis (+ towards W_ENFCAU= 2.0E-05 / [deg] FCA ROLL angle W_ENFCAV= 8.0E-05 / [deg] FCA PITCH angle W_ENFCAW= 2.0E-05 / [deg] FCA YAW angle W_ENFCAP= 'home ' / FCA position W_ENBSHS= 'ONLINE ' / biasha operational state-machine W_ENBSHT= 'IDLE ' / biasha action state-machine W_ENBSHM= 'operation' / biasha operation mode W_ENSHUT= 'close ' / shutters current position W_ENSHTI= 59.588 / [s] time in seconds with shutters fully open du W_ENBIAS= 'off ' / bia current state W_ENRDAS= 'ONLINE ' / rexm operational state-machine W_ENRDAT= 'IDLE ' / rexm action state-machine W_ENRDAM= 'operation' / rda operation mode W_ENRDAP= 'low ' / rda position during integration W_ENTMPS= 'ONLINE ' / temps controller operational state-machine W_ENTMPT= 'IDLE ' / temps controller action state-machine W_ENTMPM= 'operation' / temps operation mode W_ETMP1 = 8.543 / [degC] MOTOR_RDA W_ETMP2 = 4.087 / [degC] MOTOR_SHUTTER_B W_ETMP3 = 4.042 / [degC] MOTOR_SHUTTER_R W_ETMP4 = 7.597 / [degC] BIA_BOX_TOP W_ETMP5 = 7.624 / [degC] BIA_BOX_BOTTOM W_ETMP6 = 3.99 / [degC] FIBER_UNIT_HEXAPOD_BOTTOM W_ETMP7 = 3.915 / [degC] FIBER_UNIT_HEXAPOD_TOP W_ETMP8 = 4.007 / [degC] FIBER_UNIT_FIBER_FRAME_TOP W_ETMP9 = 4.082 / [degC] COLLIMATOR_FRAME_BOTTOM W_ETMP10= 4.022 / [degC] COLLIMATOR_FRAME_TOP W_ETMP11= 4.138 / [degC] BENCH_LEFT_TOP W_ETMP12= 4.258 / [degC] BENCH_LEFT_BOTTOM W_ETMP13= 3.861 / [degC] BENCH_RIGHT_TOP W_ETMP14= 3.844 / [degC] BENCH_RIGHT_BOTTOM W_ETMP15= 4.045 / [degC] BENCH_FAR_TOP W_ETMP16= 4.097 / [degC] BENCH_FAR_BOTTOM W_ETMP17= 3.907 / [degC] BENCH_NEAR_TOP W_ETMP18= 4.088 / [degC] BENCH_NEAR_BOTTOM W_ETMP19= 4.126 / [degC] BENCH_CENTRAL_TOP W_ETMP20= -9999. / [degC] ENU_TEMP_20 W_ENPDUS= 'ONLINE ' / pdu operational state-machine W_ENPDUT= 'IDLE ' / pdu action state-machine W_ENPDUM= 'operation' / pdu operation mode W_ENIISS= 'ONLINE ' / iis operational state-machine W_ENIIST= 'IDLE ' / iis action state-machine W_ENIISM= 'operation' / IIS operation mode COMMENT ################################ Cards from xcu_n2 W_RVXCU = '2.2.14b ' / XCU actor version W_XCOOL1= 'ON ' / Cooler1 control loop state W_XCOOL2= 'ON ' / Cooler2 control loop state W_XCL1ST= 78. / [K] Cooler1 setpoint W_XCL1RJ= 18.88 / [degC] Cooler1 reject temperature W_XCL1TP= 77.99 / [K] Cooler1 tip temperature W_XCL1PW= 181.18 / [W] Cooler1 power W_XCL2ST= 95. / [K] Cooler2 setpoint W_XCL2RJ= 19.93 / [degC] Cooler2 reject temperature W_XCL2TP= 95. / [K] Cooler2 tip temperature W_XCL2PW= 172.92 / [W] Cooler2 power W_XPRESS= 8.8552E-08 / [Torr] Cryostat gauge pressure W_XIP1EN= T / ionpump1 enabled W_XIP1PR= 4.5E-07 / [Torr] ionpump1 pressure W_XIP2EN= T / ionpump2 enabled W_XIP2PR= 5.0E-07 / [Torr] ionpump2 pressure W_XSUP1V= 27.55 / [V] PCM bus 1 input voltage W_XSUP2V= 24.5 / [V] PCM bus 2 input voltage W_XTMP1 = 89.9348 / [K] temp probe #1 W_XTMP2 = 135.7976 / [K] temp probe #2 W_XTMP3 = 92.0991 / [K] temp probe #3 W_XTMP4 = 85.8417 / [K] temp probe #4 W_XTMP5 = 275.6364 / [K] temp probe #5 W_XTMP6 = 105.2481 / [K] temp probe #6 W_XTMP7 = 400. / [K] temp probe #7 W_XTMP8 = 121.1143 / [K] temp probe #8 W_XTMP9 = 122.8892 / [K] temp probe #9 W_XTMP10= 154.0016 / [K] temp probe #10 W_XTMP11= 101.2618 / [K] temp probe #11 W_XTMP12= 100.9999 / [K] temp probe #12 W_XTDBOX= -9998. / [K] Detector Box temp W_XTMANG= 135.7976 / [K] Mangin mirror temp W_XTSPID= -9998. / [K] Spider temp W_XTSPRD= -9998. / [K] Thermal spreader temp W_XTFBAR= 275.6364 / [K] Front Barrel ring temp W_XTDET1= 101.2618 / [K] Detector temp #1 W_XTDET2= 100.9999 / [K] Detector temp #2 W_XTMCL1= 89.9348 / [K] Mirror cell temp #1 W_XTMCL2= 92.0991 / [K] Mirror cell temp #2 W_XTSICS= 85.8417 / [K] SiC spreader temp W_XTSPAN= 105.2481 / [K] Spreader pan temp W_XTSHD1= 121.1143 / [K] Radiation shield temp #1 W_XTSHD2= 122.8892 / [K] Radiation shield temp #2 W_XTASIC= 154.0016 / [K] ASIC temp W_XH1ENA= 3 / asic heater enabled W_XHP1EN= 0 / shield heater enabled W_XH1FRA= 0.523 / frac power to asic heater: 0..1 W_XHP1FR= 0. / Shield heater power: 0 or 1 W_XH2ENA= 3 / ccd heater enabled W_XHP2EN= 0 / spreader heater enabled W_XH2FRA= 0.197 / frac power to ccd heater: 0..1 W_XHP2FR= 0. / Spreader heater power: 0 or 1 W_XGATPS= 'Closed ' / actual gatevalve position W_XGATRQ= 'Closed ' / gatevalve request status W_XTBOSP= 0 / [rpm] turbo pump speed W_XM1STP= 1852 / [steps] ccd motor1 steps W_XM1POS= 150.96 / [um] arm 1 vertex offset from home W_XM2STP= 1722 / [steps] ccd motor2 steps W_XM2POS= 141.01 / [um] arm 2 vertex offset from home W_XM3STP= 1906 / [steps] ccd motor3 steps W_XM3POS= 157. / [um] arm 3 vertex offset from home COMMENT ################################ Beam configuration W_SBEMDT= 60458.79992 / [day] Beam configuration time W_SFPADT= 60414.07711 / [day] Last FPA move time W_SHEXDT= 60458.79992 / [day] Last hexapod move time COMMENT ################################ Cards from hx_n2 W_RVHX = '2.7.15 ' / HX actor version W_RVACOR= '2.4.14f ' / tron_actorcore version W_RVAKEY= '1.6.23-dirty' / ics_actorkeys version W_RVHXHL= '3.1.1 ' / hxhal version W_RVPFID= '1.7.46 ' / pfs_instdata version W_RVICUT= '1.7.27a ' / ics_utils version W_SRSAM = 59 / SAM serial number W_SRH4 = 18315 / H4RG serial number W_SRASIC= 120 / ASIC serial number W_H4FIRM= 'no available value' / name of the loaded ASIC firmware image W_H4CONF= 'no available value' / name of the loaded ASIC configuration W_H4NRMP= 1 / number of ramps requested W_H4NGRP= 1 / number of groups requested W_H4NRST= 1 / number of resets requested W_H4NRED= 8 / number of reads requested W_H4NDRP= 0 / number of drops requested W_H4RAMP= 1 / the current ramp number W_H4GRUP= 0 / the current group number W_H4READ= 1 / the current read number W_4SPI01= 0 / H4 SPI register 1 W_4SPI02= 0 / H4 SPI register 2 W_4SPI03= 0 / H4 SPI register 3 W_4SPI04= 0 / H4 SPI register 4 W_4SPI05= 0 / H4 SPI register 5 W_4SPI06= 0 / H4 SPI register 6 W_4SPI07= 0 / H4 SPI register 7 W_4SPI08= 0 / H4 SPI register 8 W_4SPI09= 0 / H4 SPI register 9 W_4SPI10= 0 / H4 SPI register 10 W_4SPI11= 0 / H4 SPI register 11 W_4SPI12= 0 / H4 SPI register 12 W_4SPI13= 0 / H4 SPI register 13 W_4SPI14= 0 / H4 SPI register 14 W_4SPI15= 0 / H4 SPI register 15 W_4VRSTS= 0.2483 / [V] VReset setting W_4DSUBS= 0.5982 / [V] DSub setting W_4VBGS = 1.6989 / [V] VBiasGate setting W_4VBPS = 3.2394 / [V] VBiasPower setting W_4CDRNS= 0.0098 / [V] CellDrain setting W_4DRNS = 0. / [V] Drain setting W_4VDDAS= 3.2883 / [V] VDDA setting W_4VDDS = 3.2198 / [V] VDD setting W_4VRMS = 2. / [V] Vrefmain setting W_4VRSTV= 0.2681 / [V] VReset reading W_4DSUBV= 0.6267 / [V] DSub reading W_4VBGV = 1.926 / [V] VBiasGate reading W_4VRMV = 2.0094 / [V] Vrefmain reading W_FRMTIM= 10.85705 / [s] individual read time, per ASIC W_H4FRMT= 10.85705 / [s] individual read time, per ASIC W_H4IRP = T / whether we are using IRP-enabled firmware W_H4IRPN= 1 / the number of data pixels per ref pixel W_H4IRPO= 1 / how many data pixels before the ref pixel W_H4NCHN= 32 / how many readout channels we have W_H4GNST= 5 / the ASIC preamp gain setting W_H4GAIN= 2.82843 / the ASIC preamp gain factor W_4FMTVR= 3 / Data format version W_H4PTCH= T / PHDU has been patched *** CompImageHDU (RESET_IMAGE_1) *** XTENSION= 'IMAGE ' / binary table extension BITPIX = 16 / data type of original image NAXIS = 2 / dimension of original image NAXIS1 = 4096 / length of original image axis NAXIS2 = 4096 / length of original image axis PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) BZERO = 32768 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor EXTNAME = 'RESET_IMAGE_1' INHERIT = T / Recommend using PHDU cards W_H4RAMP= 1 / the current ramp number W_H4GRUP= 0 / the current group number W_H4READ= 1 / the current read number CHECKSUM= '9TgEHTfB9TfBGTfB' / HDU checksum updated 2024-05-29T04:20:39 DATASUM = '1797356426' / data unit checksum updated 2024-05-29T04:20:39 *** CompImageHDU (RESET_REF_1) *** XTENSION= 'IMAGE ' / binary table extension BITPIX = 16 / data type of original image NAXIS = 2 / dimension of original image NAXIS1 = 4096 / length of original image axis NAXIS2 = 4096 / length of original image axis PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) BZERO = 32768 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor EXTNAME = 'RESET_REF_1' CHECKSUM= 'NAabP5aaNAaaN3aa' / HDU checksum updated 2024-05-29T04:20:40 DATASUM = '1802062981' / data unit checksum updated 2024-05-29T04:20:40 *** CompImageHDU (IMAGE_N) *** XTENSION= 'IMAGE ' / binary table extension BITPIX = 16 / data type of original image NAXIS = 2 / dimension of original image NAXIS1 = 4096 / length of original image axis NAXIS2 = 4096 / length of original image axis PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) BZERO = 32768 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor EXTNAME = 'IMAGE_1 ' INHERIT = T / Recommend using PHDU cards BUNIT = 'ADU ' / Pixel units for rescaled data BLANK = -32768 / Unscaled value used for invalid pixels BIN-FCT1= 1 / X-axis binning BIN-FCT2= 1 / Y-axis binning COMMENT #### Pixel-pixel WCS WCS-ORIG= 'PFS ics_utils' / Origin of WCS values CRPIX1 = 1. / Pixel coordinate of reference point CDELT1 = 1. / Coordinate increment at reference point CTYPE1 = 'LINEAR ' / Coordinate type code CRVAL1 = 0. / Coordinate value at reference point CUNIT1 = 'pixel ' / Coordinate units CRPIX2 = 1. / Pixel coordinate of reference point CDELT2 = 1. / Coordinate increment at reference point CTYPE2 = 'LINEAR ' / Coordinate type code CRVAL2 = 0. / Coordinate value at reference point CUNIT2 = 'pixel ' / Coordinate units W_H4RAMP= 1 / the current ramp number W_H4GRUP= 1 / the current group number W_H4READ= 1 / the current read number CHECKSUM= 'mH7AoH57mH5AmH55' / HDU checksum updated 2024-05-29T04:20:50 DATASUM = '2785877181' / data unit checksum updated 2024-05-29T04:20:50 *** CompImageHDU (REF_N) *** XTENSION= 'IMAGE ' / binary table extension BITPIX = 16 / data type of original image NAXIS = 2 / dimension of original image NAXIS1 = 4096 / length of original image axis NAXIS2 = 4096 / length of original image axis PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) BZERO = 32768 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor EXTNAME = 'REF_1 ' CHECKSUM= 'je2Sjd2Sjd2Sjd2S' / HDU checksum updated 2024-05-29T04:20:51 DATASUM = '1165136479' / data unit checksum updated 2024-05-29T04:20:51