=========== guide-EXPID =========== :Summary: Raw data from the 6 in-focus GFA cameras captured during a DESI spectrograph exposure. :Naming Convention: ``guide-EXPID.fits.fz``, where ``EXPID`` is the zero-padded 8-digit exposure ID. Sometimes ``EXPID`` takes the form ``EXPID-0000``. Sometimes the ``.fz`` is missing. :Regex: ``guide-[0-9]{8}(-[0-9]{4})?\.fits(\.fz)?`` :File Type: FITS, 732 MB Contents ======== ====== ======== ================ =================== Number EXTNAME Type Contents ====== ======== ================ =================== HDU00_ GUIDER Empty HDU Header keywords only HDU01_ PMGSTARS BINTABLE PlateMaker star table HDU02_ GUIDE5 Compressed IMAGE GUIDE5 image cube HDU03_ GUIDE5T BINTABLE GUIDE5 image cube metadata HDU04_ GUIDE3 Compressed IMAGE GUIDE3 image cube HDU05_ GUIDE3T BINTABLE GUIDE3 image cube metadata HDU06_ GUIDE2 Compressed IMAGE GUIDE2 image cube HDU07_ GUIDE2T BINTABLE GUIDE2 image cube metadata HDU08_ GUIDE7 Compressed IMAGE GUIDE7 image cube HDU09_ GUIDE7T BINTABLE GUIDE7 image cube metadata HDU10_ GUIDE8 Compressed IMAGE GUIDE8 image cube HDU11_ GUIDE8T BINTABLE GUIDE8 image cube metadata HDU12_ GUIDE0 Compressed IMAGE GUIDE0 image cube HDU13_ GUIDE0T BINTABLE GUIDE0 image cube metadata ====== ======== ================ =================== GFA raw data is used to acuquire a new field, guide the telescope, determine the mapping from sky coordinates to focal-plane coordinates, and estimate the accumulated signal to noise in the spectrographs. One option for reducing GFA raw data is to use the ``desietc.gfa`` module. The GUIDEn data will be 3D[nframes, ny, nx] such that ``data[i]`` is the 2D GFA frame number ``i``. Row ``i`` of the GUIDEnT table will contain the metadata about that frame, for example the ``DATE-OBS`` and ``EXPTIME``. The image cubes include the overscan and prescan; ``nx`` is 2248 and `ny` is 1032. The active image area is 2048 by 1032 pixels once overscan and prescan have been removed. Note that other than the blank data primary HDU, the order of the other HDUs is arbitrary and some GUIDEn(T) HDUs may even be missing. The nominal set (0,2,3,5,7,8) is the plan for full DESI, but particularly during commissioning other subsets will appear in the data. Also note that the acquisition image is frame ``i = 0`` when there is an acquisition image (a ``sequence=DESI`` exposure has an acquisition image but a ``sequence=_Split`` exposure does not, for example). Other than the name and number of the HDUs, the structure of this format is identical to the focus GFA raw data. FITS Header Units ================= HDU00 ----- EXTNAME = GUIDER Blank data HDU with a header that contains a lot of exposure-level metadata. Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ===================================================================== ======= =============================================== KEY Example Value Type Comment ======== ===================================================================== ======= =============================================== MODULE GUIDE str Image Sources/Component EXPID 118526 int Exposure number FRAMES 72 int Number of Frames in Archive COSMSPLT F bool Cosmics split exposure if true MAXSPLIT 0 int Number of allowed exposure splits VISITIDS 118524 str List of expids for a visit (same tile) TILEID 4403 int DESI Tile ID FIBASSGN /data/tiles/SVN_tiles/004/fiberassign-004403.fits.gz str Fiber assign FLAVOR science str Observation type OBSTYPE SCIENCE str Spectrograph observation type SEQUENCE DESI str OCS Sequence name MANIFEST F bool DOS exposure manifest OBJECT str Object name PURPOSE Main Survey str Purpose of observing night PROGRAM DARK str Program name NTSSURVY main str NTS survey name NTSPROG DARK str NTS program name SBPROF ELG str Profile used by ETC MAXTIME 5400.0 float [s] Maximum exposure time for entire visit (fro ESTTIME 3705.79 float [s] Estimated exposure time for visit (from ETC MINTIME 300.0 float [s] Minimum exposure time (from NTS, used by ET MIDTIME 915.0 float [s] Exposure midpoint time used by PlateMaker PROPID 2020B-5000 str Proposal ID OBSERVER Jessica Chellino, Corentin Ravoux str Names of observers LEAD Martin Landriau 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 SEQNUM 1 int Number of exposure in sequence NIGHT 20220113 int Observing night SEQSTART 2022-01-14T10:13:58.576904 str Start time of sequence processing TIMESYS UTC str Time system used for date-obs DATE-OBS 2022-01-14T11:03:58.319124 str [UTC] Observation data and start time MJD-OBS 59593.46109166 float Modified Julian Date of observation STARTADJ 2022-01-14T10:14:26.234369 str Time sequence starts adjusting the inst OPENSHUT 2022-01-14T11:03:58.319124 str Time shutter opened CAMSHUT open str Shutter status during observation ST 11:13:16.9528 str Local Sidereal time at observation start (HH:MM EXPTIME 5.0 float [s] Actual exposure time ACQTIME 15.0 float [s] acqusition image exposure time GUIDTIME 5.0 float [s] guider GFA exposure time FOCSTIME 60.0 float [s] focus GFA exposure time SKYTIME 60.0 float [s] sky camera exposure time (acquisition) REQRA 170.239 float [deg] Requested right ascension (observer input REQDEC -7.093 float [deg] Requested declination (observer input) DELTARA None Unknown [arcsec] Offset], right ascension, observer inp DELTADEC None Unknown [arcsec] Offset], declination, observer input 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 AIRMASS 1.331363 float Airmass FOCUS 948.5,-231.1,-91.3,-18.3,10.0,126.3 str Telescope focus settings VCCD ON str True (ON) if CCD voltage is on TRUSTEMP 12.4 float [deg] Average Telescope truss temperature (only PMIRTEMP 11.662 float [deg] Average primary mirror temperature (nit,e 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 165.277 float [deg] Dome azimuth angle DOMINPOS T bool Dome is in position EPOCH 2000.0 float Epoch of observation GUIDOFFR 0.0 float [arcsec] Cummulative guider offset (RA) GUIDOFFD -0.0 float [arcsec] Cummulative guider offset (dec) SUNRA 296.113998 float [deg] Sun RA at start of exposure SUNDEC -21.270133 float [deg] Sun declination at start of exposure MOONDEC 23.881736 float [deg] Moon declination at start of exposure MOONRA 73.512629 float [deg] Moon RA at start of exposure MOONSEP 99.425 float [deg] Moon Separation SLEWANGL 5.795 float [deg] Slew Angle SLEWTIME 31.341 float [s] Slew Time MOUNTAZ 158.328478 float [deg] Mount azimuth angle MOUNTDEC -7.10233 float [deg] Mount declination MOUNTEL 48.640103 float [deg] Mount elevation angle MOUNTHA -14.235346 float [deg] Mount hour angle INCTRL T bool DESI in control INPOS T bool Mount in position MNTOFFD -0.0 float [arcsec] Mount offset (dec) MNTOFFR -0.0 float [arcsec] Mount offset (RA) PARALLAC -18.404235 float [deg] Parallactic angle SKYDEC -7.10233 float [deg] Telescope declination (pointing on sky) SKYRA 170.241629 float [deg] Telescope right ascension (pointing on sk TARGTDEC -7.10233 float [deg] Target declination (to TCS) TARGTRA 170.241629 float [deg] Target right ascension (to TCS) TARGTAZ 158.328478 float [deg] Target azimuth TARGTEL 48.640103 float [deg] Target elevation TRGTOFFD 0.0 float [arcsec] Telescope target offset (dec) TRGTOFFR 0.0 float [arcsec] Telescope target offset (RA) ZD 41.359897 float [deg] Telescope zenith distance TILERA 170.239 float RA of tile given in fiberassign file TILEDEC -7.093 float DEC of tile given in fiberassign file TCSST 10:24:01.508 str Local Sidereal time reported by TCS (HH:MM:SS) TCSMJD 59593.427501 float MJD reported by TCS USETURB T bool Turbulence corrections are applied if true USEETC T bool ETC data available if true SEEING None Unknown [arcsec] ETC/PM seeing TRANSPAR None Unknown ETC/PM transparency SKYLEVEL 4.036 float [unit?] PM/ETC sky level PMSEEING None Unknown [arcsec] PlateMaker GFAPROC seeing PMTRANSP None Unknown [%] PlateMaker GFAPROC transparency ACQCAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Acquisition cameras used GUIDECAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Guide cameras used for t FOCUSCAM FOCUS1,FOCUS4,FOCUS6,FOCUS9 str Focus cameras used for this exposure SKYCAM SKYCAM0,SKYCAM1 str Sky cameras used for this exposure REQADC 316.38,12.3 str [deg] requested ADC angles ADCCORR T bool Correct pointing for ADC setting if True ADC1PHI 316.380005 float [deg] ADC 1 angle ADC2PHI 12.300831 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 1.0 float ADC 2 number of revs ADC1STAT STOPPED str ADC 1 status ADC2STAT STOPPED str ADC 2 status USESKY T bool DOS Control: use Sky Monitor USEFOCUS T bool DOS Control: use focus HEXPOS 948.5,-231.1,-91.3,-18.3,10.0,126.3 str Hexapod position 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 121.0 float [arcsec] Rotator offset ROTENBLD T bool Rotator enabled ROTRATE 0.0 float [arcsec/min] Rotator rate RESETROT F bool DOS Control: reset hex rotator SPLITEXP F bool Split exposure part of a visit USESPLIT T bool Exposure splits are allowed USEPOS T bool Fiber positioner data available if true PETALS PETAL0,PETAL1,PETAL2,PETAL3,PETAL4,PETAL5,PETAL6,PETAL7,PETAL8,PETAL9 str Participating petals USEGUIDR T bool DOS Control: use guider GUIDMODE catalog str Guider mode USEDONUT T bool DOS Control: use donuts USESPCTR T bool DOS Control: use spectrographs SPCGRPHS SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 str Participating spectrograph ILLSPECS SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 str Participating illuminate s CCDSPECS SP0,SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,SP9 str Participating ccd spectrog TDEWPNT -33.473 float Telescope air dew point TAIRFLOW 0.0 float Telescope air flow TAIRITMP 12.7 float [deg] Telescope air in temperature TAIROTMP 12.8 float [deg] Telescope air out temperature TAIRTEMP 11.3 float [deg] Telescope air temperature TCASITMP 6.6 float [deg] Telescope Cass Cage in temperature TCASOTMP 12.3 float [deg] Telescope Cass Cage out temperature TCSITEMP 12.1 float [deg] Telescope center section in temperature TCSOTEMP 12.2 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 12.3 float [deg] Telescope dec bore temperature TFLOWIN 0.0 float Telescope flow rate in TFLOWOUT 0.0 float Telescope flow rate out TGLYCOLI 12.9 float [deg] Telescope glycol in temperature TGLYCOLO 12.6 float [deg] Telescope glycol out temperature THINGES 12.3 float [deg] Telescope hinge S temperature THINGEW 22.3 float [deg] Telescope hinge W temperature TPMAVERT 11.695 float [deg] Telescope mirror averagetemperature TPMDESIT 6.0 float [deg] Telescope mirror desired temperature TPMEIBT 12.2 float [deg] Telescope mirror EIB temperature TPMEITT 11.5 float [deg] Telescope mirror EIT temperature TPMEOBT 12.3 float [deg] Telescope mirror EOB temperature TPMEOTT 12.0 float [deg] Telescope mirror EOT temperature TPMNIBT 12.0 float [deg] Telescope mirror NIB temperature TPMNITT 11.4 float [deg] Telescope mirror NIT temperature TPMNOBT 12.3 float [deg] Telescope mirror NOB temperature TPMNOTT 12.0 float [deg] Telescope mirror NOT temperature TPMRTDT 11.68 float [deg] Telescope mirror RTD temperature TPMSIBT 12.1 float [deg] Telescope mirror SIB temperature TPMSITT 11.5 float [deg] Telescope mirror SIT temperature TPMSOBT 12.1 float [deg] Telescope mirror SOB temperature TPMSOTT 11.8 float [deg] Telescope mirror SOT temperature TPMSTAT ready str Telescope mirror status TPMWIBT 11.9 float [deg] Telescope mirror WIB temperature TPMWITT 11.3 float [deg] Telescope mirror WIT temperature TPMWOBT 11.9 float [deg] Telescope mirror WOB temperature TPMWOTT 11.8 float [deg] Telescope mirror WOT temperature TPCITEMP 12.1 float [deg] Telescope primary cell in temperature TPCOTEMP 12.1 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 12.1 float [deg] Telescope top ring S temperature TTRWTEMP 12.0 float [deg] Telescope top ring W temperature TTRUETBT -1.5 float [deg] Telescope truss ETB temperature TTRUETTT 11.7 float [deg] Telescope truss ETT temperature TTRUNTBT 11.7 float [deg] Telescope truss NTB temperature TTRUNTTT 11.7 float [deg] Telescope truss NTT temperature TTRUSTBT 11.7 float [deg] Telescope truss STB temperature TTRUSTST 10.8 float [deg] Telescope truss STS temperature TTRUSTTT 11.9 float [deg] Telescope truss STT temperature TTRUTSBT 12.4 float [deg] Telescope truss TSB temperature TTRUTSMT 12.5 float [deg] Telescope truss TSM temperature TTRUTSTT 12.3 float [deg] Telescope truss TST temperature TTRUWTBT 11.6 float [deg] Telescope truss WTB temperature TTRUWTTT 11.7 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 5904.0 float [s] UPS Seconds left UPSSTAT System Normal - On Line(7) str UPS Status INAMPS 72.1 float [A] UPS total input current OUTWATTS 4900.0,7600.0,4600.0 str [W] UPS Phase A, B, C output watts COMPDEW -10.4 float [deg C] Computer room dewpoint COMPHUM 14.1 float [%] Computer room humidity COMPAMB 25.2 float [deg C] Computer room ambient temperature COMPTEMP 17.3 float [deg C] Computer room hygrometer temperature DEWPOINT -36.9 float [deg C] (outside) dewpoint HUMIDITY 1.6 float [%] (outside) humidity PRESSURE 793.6 float [torr] (outside) air pressure OUTTEMP 11.0 float [deg C] outside temperature WINDDIR 252.9 float [deg] wind direction WINDSPD 10.7 float [m/s] wind speed GUST 13.0 float [m/s] Wind gusts speed AMNIENTN 16.8 float [deg C] ambient temperature north CFLOOR 11.6 float [deg C] temperature on C floor NWALLIN 17.3 float [deg C] temperature at north wall inside NWALLOUT 11.1 float [deg C] temperature at north wall outside WWALLIN 16.6 float [deg C] temperature at west wall inside WWALLOUT 11.5 float [deg C] temperature at west wall outside AMBIENTS 17.6 float [deg C] ambient temperature south FLOOR 15.8 float [deg C] temperature at floor (LCR) EWALLCMP 11.9 float [deg C] temperature at east wall, computer room EWALLCOU 11.6 float [deg C] temperature at east wall, Coude room ROOF 11.0 float [deg C] temperature on roof ROOFAMB 11.3 float [deg C] ambient temperature on roof DOMEBLOW 11.2 float [deg C] temperature at dome back, lower DOMEBUP 11.3 float [deg C] temperature at dome back, upper DOMELLOW 11.2 float [deg C] temperature at dome left, lower DOMELUP 11.1 float [deg C] temperature at dome left, upper DOMERLOW 11.1 float [deg C] temperature at dome right, lower DOMERUP 10.8 float [deg C] temperature at dome right, upper PLATFORM 10.8 float [deg C] temperature at platform SHACKC 16.6 float [deg C] temperature at shack ceiling SHACKW 16.7 float [deg C] temperature at shack wall STAIRSL 11.2 float [deg C] temperature at stairs, lower STAIRSM 11.0 float [deg C] temperature at stairs, mid STAIRSU 11.1 float [deg C] temperature at stairs, upper TELBASE 11.7 float [deg C] temperature at telescope base UTILWALL 11.4 float [deg C] temperature at utility room wall UTILROOM 10.3 float [deg C] temperature in utilitiy room RADESYS FK5 str Coordinate reference frame of major/minor axes TNFSPROC 7.9838 float [s] PlateMaker NFSPROC 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 USEMIDPT T bool Use exposure midpoint if true 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 F bool DOS Control: reacquire same files EXCLUDED str Components excluded from this exposure DOSVER trunk str DOS software version OCSVER 1.2 float OCS software version PMVER desi-138368 str PlateMaker/Dervish version CONSTVER DESI:CURRENT str Constants version INIFILE /data/msdos/dos_home/architectures/kpno/desi.ini str DOS Configuration REQTIME 1860.0 float [s] Requested exposure time SIMGFACQ F bool TCSKRA 0.01 0.04 0.01 str TCS Kalman (RA) TCSKDEC 0.01 0.04 0.01 str TCS Kalman (dec) TCSGRA 0.15 float TCS simple gain (RA) TCSGDEC 0.15 float TCS simple gain (dec) TCSMFRA 2 int TCS moving filter length (RA) TCSMFDEC 2 int TCS moving filter length (dec) TCSPIRA 0.9,0.0,0.0,0.0 str TCS PI settings (P, I (gain, error window, satu TCSPIDEC 0.9,0.0,0.0,0.0 str TCS PI settings (P, I (gain, error window, satu GSGUIDE2 (664.34,38.87) str GSGUIDE5 (593.78,1504.27),(437.14,545.33) str GSGUIDE3 (537.68,1656.18),(360.10,1393.84) str GSGUIDE7 (223.31,1205.23),(687.61,1805.82) str GSGUIDE8 (479.93,780.28),(548.26,388.92) str GSGUIDE0 (167.25,277.52),(622.59,595.97) str ARCHIVE /exposures/desi/20220113/00118526/guide-00118526.fits.fz str CHECKSUM lFAHlC7GlCAGlC5G str HDU checksum updated 2022-01-14T11:13:59 DATASUM 0 str data unit checksum updated 2022-01-14T11:13:59 ======== ===================================================================== ======= =============================================== Empty HDU. HDU01 ----- EXTNAME = PMGSTARS Binary table of candidate guide/ETC stars detected by PlateMaker. Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 86 int width of table in bytes NAXIS2 18 int number of rows in table CHECKSUM YeEnYZBmYbBmYZBm str HDU checksum updated 2022-01-14T11:13:59 DATASUM 315340011 str data unit checksum updated 2022-01-14T11:13:59 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ============= ======= ===== =================== Name Type Units Description ============= ======= ===== =================== GFA_LOC char[6] PETAL_LOC number RA float64 Star RA in degrees DEC float64 Star Dec in degrees ROW float64 Star y pixel coord COL float64 Star x pixel coord RA_IVAR float64 RA inverse variance DEC_IVAR float64 Dec inverse variance MAG float64 Star magnitude MORPHTYPE int64 Morphological type GUIDE_FLAG int64 Guiding bitmask ETC_FLAG [1]_ int64 ETC bitmask ============= ======= ===== =================== .. [1] Optional ``COL`` is the x pixel coordinate of each star in a convention where the left edge of the image has x = 0. ``ROW`` is the y pixel coordinate of each star in a convention where the bottom edge of the image has y = 0. So in this convention the center of the lower left pixel is (x, y) = (0.5, 0.5) rather than (0, 0). The star MAG is a synthetic version of DECam r created from Gaia photometry, inherited from the fiberassign GFA_TARGETS extension. MORPHTYPE is the GFA_TARGETS morphological type; this may, by definition, always be equal to 0, since the GFA_TARGETS target list should not include resolved galaxies. GUIDE_FLAG is a flag indicating whether each star is suitable for use as a guide star. This may always be equal to 1 by definition, as the PMGSTARS table would simply discard any star not suitable for use as a guide star. ETC_FLAG is a bitmask indicating whether each PlateMaker-selected guide star is suitable for use by the ETC. The main problem case that ETC_FLAG is supposed to address is variable stars, which can be fine for guiding but would mess up ETC transparency estimates. ETC_FLAG = 0 means that a star is usable for the ETC, whereas nonzero ETC_FLAG means that a star should not be used by the ETC. HDU02 ----- EXTNAME = GUIDE5 GUIDE5 image cube Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ==================================================== ======= =============================================== KEY Example Value Type Comment ======== ==================================================== ======= =============================================== NAXIS1 8 int width of table in bytes NAXIS2 74304 int number of rows in table ZTILE3 1 int size of tiles to be compressed BZERO 32768 int offset data range to that of unsigned short BSCALE 1 int default scaling factor DEVICE GUIDE5 str Device/controller name UNIT 5 int Unit number/letter UNITTYPE GUIDE str Image Sources/Component EXPID 118526 int Exposure number FRAMES 72 int Number of Frames in Archive TILEID 4403 int DESI Tile ID FIBASSGN /data/tiles/SVN_tiles/004/fiberassign-004403.fits.gz str Fiber assign FLAVOR science str Observation type SEQUENCE _Split str OCS Sequence name PURPOSE Main Survey str Purpose of observing night PROGRAM DARK str Program name PROPID 2020B-5000 str Proposal ID OBSERVER Jessica Chellino, Corentin Ravoux str Names of observers LEAD Martin Landriau 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 20220113 int Observing night TIMESYS UTC str Time system used for date-obs DATE-OBS 2022-01-14T11:03:58.319124 str [UTC] Observation data and start time MJD-OBS 59593.46109166 float Modified Julian Date of observation OPENSHUT 2022-01-14T11:03:58.319124 str Time shutter opened ST 11:13:16.9528 str Local Sidereal time at observation start (HH:MM ACQTIME 15.0 float [s] acqusition image exposure time GUIDTIME 5.0 float [s] guider GFA exposure time REQRA 170.239 float [deg] Requested right ascension (observer input REQDEC -7.093 float [deg] Requested declination (observer input) DELTARA None Unknown [arcsec] Offset], right ascension, observer inp DELTADEC None Unknown [arcsec] Offset], declination, observer input FOCUS 946.6,-231.6,-83.4,-18.3,9.8,139.4 str Telescope focus settings TRUSTEMP 12.267 float [deg] Average Telescope truss temperature (only PMIRTEMP 11.675 float [deg] Average primary mirror temperature (nit,e EPOCH 2000.0 float Epoch of observation EQUINOX 2000.0 float Equinox of selected coordinate reference frame MOUNTAZ 176.725567 float [deg] Mount azimuth angle MOUNTDEC -7.102329 float [deg] Mount declination MOUNTEL 50.883914 float [deg] Mount elevation angle MOUNTHA -2.081118 float [deg] Mount hour angle SKYDEC -7.102329 float [deg] Telescope declination (pointing on sky) SKYRA 170.24163 float [deg] Telescope right ascension (pointing on sk TARGTDEC -7.102329 float [deg] Target declination (to TCS) TARGTRA 170.24163 float [deg] Target right ascension (to TCS) USEETC T bool ETC data available if true ACQCAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Acquisition cameras used GUIDECAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Guide cameras used for t FOCUSCAM FOCUS1,FOCUS4,FOCUS6,FOCUS9 str Focus cameras used for this exposure SKYCAM SKYCAM0,SKYCAM1 str Sky cameras used for this exposure ADC1PHI None Unknown [deg] ADC 1 angle USESKY T bool DOS Control: use Sky Monitor USEFOCUS T bool DOS Control: use focus HEXPOS 946.7,-231.6,-83.4,-18.3,9.9,138.8 str Hexapod position 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 138.8 float [arcsec] Rotator offset ROTENBLD T bool Rotator enabled ROTRATE 0.513 float [arcsec/min] Rotator rate USEGUIDR T bool DOS Control: use guider USEDONUT T bool DOS Control: use donuts WCSAXES 2 int RADESYS FK5 str Coordinate reference frame of major/minor axes CTYPE1 RA---TAN str CTYPE2 DEC--TAN str CD1_1 5.6345e-05 float CD1_2 -1.6764e-05 float CD2_1 -1.8252e-05 float CD2_2 -5.1779e-05 float SHAPE 1032,2248 str 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 ADCPHI2 None Unknown ROI None Unknown ROIWIDTH None Unknown GEXPMODE normal str GFA readout mode (loop/normal) DEVICEID dev08 str GFA device id (serial number) REQTIME 1860.0 float [s] Requested exposure time CHECKSUM drbFfoZDdobDdoZD str HDU checksum updated 2022-01-14T11:13:59 DATASUM 1908774157 str data unit checksum updated 2022-01-14T11:13:59 ======== ==================================================== ======= =============================================== Data: FITS image [int16 (compressed), 2248x1032x72] HDU03 ----- EXTNAME = GUIDE5T GUIDE5 image cube metadata Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 242 int width of table in bytes NAXIS2 72 int number of rows in table CHECKSUM CZCLCWCKCWCKCWCK str HDU checksum updated 2022-01-14T11:13:59 DATASUM 79233899 str data unit checksum updated 2022-01-14T11:13:59 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ======== ======== ===== =================== Name Type Units Description ======== ======== ===== =================== EXPTIME float64 Exposure time (sec) NIGHT int64 Observing night DATE-OBS char[26] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) TIME-OBS char[15] HH:MM:SS.SSSSSS (UT) MJD-OBS float64 MJD (start of frame) OPENSHUT char[*] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) ST char[*] HH:MM:SS.SS (Local Sidereal Time at frame start) HEXPOS char[34] Hexapod position GAMBNTT float64 GFA ambient temp (C) GFPGAT float64 GFA FPGA temp (C) GFILTERT float64 GFA filter temp (C) GCOLDTEC float64 GFA cold peltier temp (C) GHOTTEC float64 GFA hot peltier temp (C) GCCDTEMP float64 GFA CCD temp (C) GCAMTEMP float64 GFA camera temp (C) GHUMID2 float64 GFA humidity 2 GHUMID3 float64 GFA humidity 3 CRPIX1 float64 Reference pixel in axis1 CRPIX2 float64 Reference pixel in axis2 CRVAL1 float64 Physical value of the reference pixel CRVAL2 float64 Physical value of the reference pixel ======== ======== ===== =================== ``HEXPOS`` is a string containing the six hexapod parameters separated by commas, ordered as X, Y, Z, tip, tilt, rotation (positions in microns, angles in arcseconds). HDU04 ----- EXTNAME = GUIDE3 GUIDE3 image cube Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ==================================================== ======= =============================================== KEY Example Value Type Comment ======== ==================================================== ======= =============================================== NAXIS1 8 int width of table in bytes NAXIS2 74304 int number of rows in table ZTILE3 1 int size of tiles to be compressed BZERO 32768 int offset data range to that of unsigned short BSCALE 1 int default scaling factor DEVICE GUIDE3 str Device/controller name UNIT 3 int Unit number/letter UNITTYPE GUIDE str Image Sources/Component EXPID 118526 int Exposure number FRAMES 72 int Number of Frames in Archive TILEID 4403 int DESI Tile ID FIBASSGN /data/tiles/SVN_tiles/004/fiberassign-004403.fits.gz str Fiber assign FLAVOR science str Observation type SEQUENCE _Split str OCS Sequence name PURPOSE Main Survey str Purpose of observing night PROGRAM DARK str Program name PROPID 2020B-5000 str Proposal ID OBSERVER Jessica Chellino, Corentin Ravoux str Names of observers LEAD Martin Landriau 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 20220113 int Observing night TIMESYS UTC str Time system used for date-obs DATE-OBS 2022-01-14T11:03:58.319124 str [UTC] Observation data and start time MJD-OBS 59593.46109166 float Modified Julian Date of observation OPENSHUT 2022-01-14T11:03:58.319124 str Time shutter opened ST 11:13:16.9528 str Local Sidereal time at observation start (HH:MM ACQTIME 15.0 float [s] acqusition image exposure time GUIDTIME 5.0 float [s] guider GFA exposure time REQRA 170.239 float [deg] Requested right ascension (observer input REQDEC -7.093 float [deg] Requested declination (observer input) DELTARA None Unknown [arcsec] Offset], right ascension, observer inp DELTADEC None Unknown [arcsec] Offset], declination, observer input FOCUS 946.6,-231.6,-83.4,-18.3,9.8,139.4 str Telescope focus settings TRUSTEMP 12.267 float [deg] Average Telescope truss temperature (only PMIRTEMP 11.675 float [deg] Average primary mirror temperature (nit,e EPOCH 2000.0 float Epoch of observation EQUINOX 2000.0 float Equinox of selected coordinate reference frame MOUNTAZ 176.725567 float [deg] Mount azimuth angle MOUNTDEC -7.102329 float [deg] Mount declination MOUNTEL 50.883914 float [deg] Mount elevation angle MOUNTHA -2.081118 float [deg] Mount hour angle SKYDEC -7.102329 float [deg] Telescope declination (pointing on sky) SKYRA 170.24163 float [deg] Telescope right ascension (pointing on sk TARGTDEC -7.102329 float [deg] Target declination (to TCS) TARGTRA 170.24163 float [deg] Target right ascension (to TCS) USEETC T bool ETC data available if true ACQCAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Acquisition cameras used GUIDECAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Guide cameras used for t FOCUSCAM FOCUS1,FOCUS4,FOCUS6,FOCUS9 str Focus cameras used for this exposure SKYCAM SKYCAM0,SKYCAM1 str Sky cameras used for this exposure ADC1PHI None Unknown [deg] ADC 1 angle USESKY T bool DOS Control: use Sky Monitor USEFOCUS T bool DOS Control: use focus HEXPOS 946.7,-231.6,-83.4,-18.3,9.9,138.8 str Hexapod position 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 138.8 float [arcsec] Rotator offset ROTENBLD T bool Rotator enabled ROTRATE 0.513 float [arcsec/min] Rotator rate USEGUIDR T bool DOS Control: use guider USEDONUT T bool DOS Control: use donuts WCSAXES 2 int RADESYS FK5 str Coordinate reference frame of major/minor axes CTYPE1 RA---TAN str CTYPE2 DEC--TAN str CD1_1 3.4943e-05 float CD1_2 4.3939e-05 float CD2_1 4.7823e-05 float CD2_2 -3.2116e-05 float SHAPE 1032,2248 str 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 ADCPHI2 None Unknown ROI None Unknown ROIWIDTH None Unknown GEXPMODE normal str GFA readout mode (loop/normal) DEVICEID dev02 str GFA device id (serial number) REQTIME 1860.0 float [s] Requested exposure time CHECKSUM loGEloDBloDBloDB str HDU checksum updated 2022-01-14T11:14:00 DATASUM 2587335691 str data unit checksum updated 2022-01-14T11:14:00 ======== ==================================================== ======= =============================================== Data: FITS image [int16 (compressed), 2248x1032x72] HDU05 ----- EXTNAME = GUIDE3T GUIDE3 image cube metadata Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 242 int width of table in bytes NAXIS2 72 int number of rows in table CHECKSUM ZA2Ve40TZ90Tb90T str HDU checksum updated 2022-01-14T11:14:00 DATASUM 1996482551 str data unit checksum updated 2022-01-14T11:14:00 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ======== ======== ===== =================== Name Type Units Description ======== ======== ===== =================== EXPTIME float64 Exposure time (sec) NIGHT int64 Observing night DATE-OBS char[26] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) TIME-OBS char[15] HH:MM:SS.SSSSSS (UT) MJD-OBS float64 MJD (start of frame) OPENSHUT char[*] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) ST char[*] HH:MM:SS.SS (Local Sidereal Time at frame start) HEXPOS char[34] Hexapod position GAMBNTT float64 GFA ambient temp (C) GFPGAT float64 GFA FPGA temp (C) GFILTERT float64 GFA filter temp (C) GCOLDTEC float64 GFA cold peltier temp (C) GHOTTEC float64 GFA hot peltier temp (C) GCCDTEMP float64 GFA CCD temp (C) GCAMTEMP float64 GFA camera temp (C) GHUMID2 float64 GFA humidity 2 GHUMID3 float64 GFA humidity 3 CRPIX1 float64 Reference pixel in axis1 CRPIX2 float64 Reference pixel in axis2 CRVAL1 float64 Physical value of the reference pixel CRVAL2 float64 Physical value of the reference pixel ======== ======== ===== =================== HDU06 ----- EXTNAME = GUIDE2 GUIDE2 image cube Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ==================================================== ======= =============================================== KEY Example Value Type Comment ======== ==================================================== ======= =============================================== NAXIS1 8 int width of table in bytes NAXIS2 74304 int number of rows in table ZTILE3 1 int size of tiles to be compressed BZERO 32768 int offset data range to that of unsigned short BSCALE 1 int default scaling factor DEVICE GUIDE2 str Device/controller name UNIT 2 int Unit number/letter UNITTYPE GUIDE str Image Sources/Component EXPID 118526 int Exposure number FRAMES 72 int Number of Frames in Archive TILEID 4403 int DESI Tile ID FIBASSGN /data/tiles/SVN_tiles/004/fiberassign-004403.fits.gz str Fiber assign FLAVOR science str Observation type SEQUENCE _Split str OCS Sequence name PURPOSE Main Survey str Purpose of observing night PROGRAM DARK str Program name PROPID 2020B-5000 str Proposal ID OBSERVER Jessica Chellino, Corentin Ravoux str Names of observers LEAD Martin Landriau 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 20220113 int Observing night TIMESYS UTC str Time system used for date-obs DATE-OBS 2022-01-14T11:03:58.319124 str [UTC] Observation data and start time MJD-OBS 59593.46109166 float Modified Julian Date of observation OPENSHUT 2022-01-14T11:03:58.319124 str Time shutter opened ST 11:13:16.9528 str Local Sidereal time at observation start (HH:MM ACQTIME 15.0 float [s] acqusition image exposure time GUIDTIME 5.0 float [s] guider GFA exposure time REQRA 170.239 float [deg] Requested right ascension (observer input REQDEC -7.093 float [deg] Requested declination (observer input) DELTARA None Unknown [arcsec] Offset], right ascension, observer inp DELTADEC None Unknown [arcsec] Offset], declination, observer input FOCUS 946.6,-231.6,-83.4,-18.3,9.8,139.4 str Telescope focus settings TRUSTEMP 12.267 float [deg] Average Telescope truss temperature (only PMIRTEMP 11.675 float [deg] Average primary mirror temperature (nit,e EPOCH 2000.0 float Epoch of observation EQUINOX 2000.0 float Equinox of selected coordinate reference frame MOUNTAZ 176.725567 float [deg] Mount azimuth angle MOUNTDEC -7.102329 float [deg] Mount declination MOUNTEL 50.883914 float [deg] Mount elevation angle MOUNTHA -2.081118 float [deg] Mount hour angle SKYDEC -7.102329 float [deg] Telescope declination (pointing on sky) SKYRA 170.24163 float [deg] Telescope right ascension (pointing on sk TARGTDEC -7.102329 float [deg] Target declination (to TCS) TARGTRA 170.24163 float [deg] Target right ascension (to TCS) USEETC T bool ETC data available if true ACQCAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Acquisition cameras used GUIDECAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Guide cameras used for t FOCUSCAM FOCUS1,FOCUS4,FOCUS6,FOCUS9 str Focus cameras used for this exposure SKYCAM SKYCAM0,SKYCAM1 str Sky cameras used for this exposure ADC1PHI None Unknown [deg] ADC 1 angle USESKY T bool DOS Control: use Sky Monitor USEFOCUS T bool DOS Control: use focus HEXPOS 946.7,-231.6,-83.4,-18.3,9.9,138.8 str Hexapod position 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 138.8 float [arcsec] Rotator offset ROTENBLD T bool Rotator enabled ROTRATE 0.513 float [arcsec/min] Rotator rate USEGUIDR T bool DOS Control: use guider USEDONUT T bool DOS Control: use donuts WCSAXES 2 int RADESYS FK5 str Coordinate reference frame of major/minor axes CTYPE1 RA---TAN str CTYPE2 DEC--TAN str CD1_1 1.9486e-07 float CD1_2 5.4424e-05 float CD2_1 5.9241e-05 float CD2_2 -1.8383e-07 float SHAPE 1032,2248 str 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 ADCPHI2 None Unknown ROI None Unknown ROIWIDTH None Unknown GEXPMODE normal str GFA readout mode (loop/normal) DEVICEID dev06 str GFA device id (serial number) REQTIME 1860.0 float [s] Requested exposure time CHECKSUM 9iG4AfE49fE4AfE4 str HDU checksum updated 2022-01-14T11:14:01 DATASUM 2955333335 str data unit checksum updated 2022-01-14T11:14:01 ======== ==================================================== ======= =============================================== Data: FITS image [int16 (compressed), 2248x1032x72] HDU07 ----- EXTNAME = GUIDE2T GUIDE2 image cube metadata Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 242 int width of table in bytes NAXIS2 72 int number of rows in table CHECKSUM 7qDGAoD90oDE7oD9 str HDU checksum updated 2022-01-14T11:14:01 DATASUM 2746564241 str data unit checksum updated 2022-01-14T11:14:01 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ======== ======== ===== =================== Name Type Units Description ======== ======== ===== =================== EXPTIME float64 Exposure time (sec) NIGHT int64 Observing night DATE-OBS char[26] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) TIME-OBS char[15] HH:MM:SS.SSSSSS (UT) MJD-OBS float64 MJD (start of frame) OPENSHUT char[*] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) ST char[*] HH:MM:SS.SS (Local Sidereal Time at frame start) HEXPOS char[34] Hexapod position GAMBNTT float64 GFA ambient temp (C) GFPGAT float64 GFA FPGA temp (C) GFILTERT float64 GFA filter temp (C) GCOLDTEC float64 GFA cold peltier temp (C) GHOTTEC float64 GFA hot peltier temp (C) GCCDTEMP float64 GFA CCD temp (C) GCAMTEMP float64 GFA camera temp (C) GHUMID2 float64 GFA humidity 2 GHUMID3 float64 GFA humidity 3 CRPIX1 float64 Reference pixel in axis1 CRPIX2 float64 Reference pixel in axis2 CRVAL1 float64 Physical value of the reference pixel CRVAL2 float64 Physical value of the reference pixel ======== ======== ===== =================== HDU08 ----- EXTNAME = GUIDE7 GUIDE7 image cube Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ==================================================== ======= =============================================== KEY Example Value Type Comment ======== ==================================================== ======= =============================================== NAXIS1 8 int width of table in bytes NAXIS2 74304 int number of rows in table ZTILE3 1 int size of tiles to be compressed BZERO 32768 int offset data range to that of unsigned short BSCALE 1 int default scaling factor DEVICE GUIDE7 str Device/controller name UNIT 7 int Unit number/letter UNITTYPE GUIDE str Image Sources/Component EXPID 118526 int Exposure number FRAMES 72 int Number of Frames in Archive TILEID 4403 int DESI Tile ID FIBASSGN /data/tiles/SVN_tiles/004/fiberassign-004403.fits.gz str Fiber assign FLAVOR science str Observation type SEQUENCE _Split str OCS Sequence name PURPOSE Main Survey str Purpose of observing night PROGRAM DARK str Program name PROPID 2020B-5000 str Proposal ID OBSERVER Jessica Chellino, Corentin Ravoux str Names of observers LEAD Martin Landriau 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 20220113 int Observing night TIMESYS UTC str Time system used for date-obs DATE-OBS 2022-01-14T11:03:58.319124 str [UTC] Observation data and start time MJD-OBS 59593.46109166 float Modified Julian Date of observation OPENSHUT 2022-01-14T11:03:58.319124 str Time shutter opened ST 11:13:16.9528 str Local Sidereal time at observation start (HH:MM ACQTIME 15.0 float [s] acqusition image exposure time GUIDTIME 5.0 float [s] guider GFA exposure time REQRA 170.239 float [deg] Requested right ascension (observer input REQDEC -7.093 float [deg] Requested declination (observer input) DELTARA None Unknown [arcsec] Offset], right ascension, observer inp DELTADEC None Unknown [arcsec] Offset], declination, observer input FOCUS 946.6,-231.6,-83.4,-18.3,9.8,139.4 str Telescope focus settings TRUSTEMP 12.267 float [deg] Average Telescope truss temperature (only PMIRTEMP 11.675 float [deg] Average primary mirror temperature (nit,e EPOCH 2000.0 float Epoch of observation EQUINOX 2000.0 float Equinox of selected coordinate reference frame MOUNTAZ 176.725567 float [deg] Mount azimuth angle MOUNTDEC -7.102329 float [deg] Mount declination MOUNTEL 50.883914 float [deg] Mount elevation angle MOUNTHA -2.081118 float [deg] Mount hour angle SKYDEC -7.102329 float [deg] Telescope declination (pointing on sky) SKYRA 170.24163 float [deg] Telescope right ascension (pointing on sk TARGTDEC -7.102329 float [deg] Target declination (to TCS) TARGTRA 170.24163 float [deg] Target right ascension (to TCS) USEETC T bool ETC data available if true ACQCAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Acquisition cameras used GUIDECAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Guide cameras used for t FOCUSCAM FOCUS1,FOCUS4,FOCUS6,FOCUS9 str Focus cameras used for this exposure SKYCAM SKYCAM0,SKYCAM1 str Sky cameras used for this exposure ADC1PHI None Unknown [deg] ADC 1 angle USESKY T bool DOS Control: use Sky Monitor USEFOCUS T bool DOS Control: use focus HEXPOS 946.7,-231.6,-83.4,-18.3,9.9,138.8 str Hexapod position 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 138.8 float [arcsec] Rotator offset ROTENBLD T bool Rotator enabled ROTRATE 0.513 float [arcsec/min] Rotator rate USEGUIDR T bool DOS Control: use guider USEDONUT T bool DOS Control: use donuts WCSAXES 2 int RADESYS FK5 str Coordinate reference frame of major/minor axes CTYPE1 RA---TAN str CTYPE2 DEC--TAN str CD1_1 2.0968e-07 float CD1_2 -5.443e-05 float CD2_1 -5.9249e-05 float CD2_2 -1.8791e-07 float SHAPE 1032,2248 str 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 ADCPHI2 None Unknown ROI None Unknown ROIWIDTH None Unknown GEXPMODE normal str GFA readout mode (loop/normal) DEVICEID dev01 str GFA device id (serial number) REQTIME 1860.0 float [s] Requested exposure time CHECKSUM HB4WH93VHA3VH73V str HDU checksum updated 2022-01-14T11:14:02 DATASUM 1347049373 str data unit checksum updated 2022-01-14T11:14:02 ======== ==================================================== ======= =============================================== Data: FITS image [int16 (compressed), 2248x1032x72] HDU09 ----- EXTNAME = GUIDE7T GUIDE7 image cube metadata Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 242 int width of table in bytes NAXIS2 72 int number of rows in table CHECKSUM IbGoJaDnIaDnIaDn str HDU checksum updated 2022-01-14T11:14:02 DATASUM 3635643212 str data unit checksum updated 2022-01-14T11:14:02 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ======== ======== ===== =================== Name Type Units Description ======== ======== ===== =================== EXPTIME float64 Exposure time (sec) NIGHT int64 Observing night DATE-OBS char[26] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) TIME-OBS char[15] HH:MM:SS.SSSSSS (UT) MJD-OBS float64 MJD (start of frame) OPENSHUT char[*] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) ST char[*] HH:MM:SS.SS (Local Sidereal Time at frame start) HEXPOS char[34] Hexapod position GAMBNTT float64 GFA ambient temp (C) GFPGAT float64 GFA FPGA temp (C) GFILTERT float64 GFA filter temp (C) GCOLDTEC float64 GFA cold peltier temp (C) GHOTTEC float64 GFA hot peltier temp (C) GCCDTEMP float64 GFA CCD temp (C) GCAMTEMP float64 GFA camera temp (C) GHUMID2 float64 GFA humidity 2 GHUMID3 float64 GFA humidity 3 CRPIX1 float64 Reference pixel in axis1 CRPIX2 float64 Reference pixel in axis2 CRVAL1 float64 Physical value of the reference pixel CRVAL2 float64 Physical value of the reference pixel ======== ======== ===== =================== HDU10 ----- EXTNAME = GUIDE8 GUIDE8 image cube Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ==================================================== ======= =============================================== KEY Example Value Type Comment ======== ==================================================== ======= =============================================== NAXIS1 8 int width of table in bytes NAXIS2 74304 int number of rows in table ZTILE3 1 int size of tiles to be compressed BZERO 32768 int offset data range to that of unsigned short BSCALE 1 int default scaling factor DEVICE GUIDE8 str Device/controller name UNIT 8 int Unit number/letter UNITTYPE GUIDE str Image Sources/Component EXPID 118526 int Exposure number FRAMES 72 int Number of Frames in Archive TILEID 4403 int DESI Tile ID FIBASSGN /data/tiles/SVN_tiles/004/fiberassign-004403.fits.gz str Fiber assign FLAVOR science str Observation type SEQUENCE _Split str OCS Sequence name PURPOSE Main Survey str Purpose of observing night PROGRAM DARK str Program name PROPID 2020B-5000 str Proposal ID OBSERVER Jessica Chellino, Corentin Ravoux str Names of observers LEAD Martin Landriau 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 20220113 int Observing night TIMESYS UTC str Time system used for date-obs DATE-OBS 2022-01-14T11:03:58.319124 str [UTC] Observation data and start time MJD-OBS 59593.46109166 float Modified Julian Date of observation OPENSHUT 2022-01-14T11:03:58.319124 str Time shutter opened ST 11:13:16.9528 str Local Sidereal time at observation start (HH:MM ACQTIME 15.0 float [s] acqusition image exposure time GUIDTIME 5.0 float [s] guider GFA exposure time REQRA 170.239 float [deg] Requested right ascension (observer input REQDEC -7.093 float [deg] Requested declination (observer input) DELTARA None Unknown [arcsec] Offset], right ascension, observer inp DELTADEC None Unknown [arcsec] Offset], declination, observer input FOCUS 946.6,-231.6,-83.4,-18.3,9.8,139.4 str Telescope focus settings TRUSTEMP 12.267 float [deg] Average Telescope truss temperature (only PMIRTEMP 11.675 float [deg] Average primary mirror temperature (nit,e EPOCH 2000.0 float Epoch of observation EQUINOX 2000.0 float Equinox of selected coordinate reference frame MOUNTAZ 176.725567 float [deg] Mount azimuth angle MOUNTDEC -7.102329 float [deg] Mount declination MOUNTEL 50.883914 float [deg] Mount elevation angle MOUNTHA -2.081118 float [deg] Mount hour angle SKYDEC -7.102329 float [deg] Telescope declination (pointing on sky) SKYRA 170.24163 float [deg] Telescope right ascension (pointing on sk TARGTDEC -7.102329 float [deg] Target declination (to TCS) TARGTRA 170.24163 float [deg] Target right ascension (to TCS) USEETC T bool ETC data available if true ACQCAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Acquisition cameras used GUIDECAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Guide cameras used for t FOCUSCAM FOCUS1,FOCUS4,FOCUS6,FOCUS9 str Focus cameras used for this exposure SKYCAM SKYCAM0,SKYCAM1 str Sky cameras used for this exposure ADC1PHI None Unknown [deg] ADC 1 angle USESKY T bool DOS Control: use Sky Monitor USEFOCUS T bool DOS Control: use focus HEXPOS 946.7,-231.6,-83.4,-18.3,9.9,138.8 str Hexapod position 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 138.8 float [arcsec] Rotator offset ROTENBLD T bool Rotator enabled ROTRATE 0.513 float [arcsec/min] Rotator rate USEGUIDR T bool DOS Control: use guider USEDONUT T bool DOS Control: use donuts WCSAXES 2 int RADESYS FK5 str Coordinate reference frame of major/minor axes CTYPE1 RA---TAN str CTYPE2 DEC--TAN str CD1_1 -3.4681e-05 float CD1_2 -4.4134e-05 float CD2_1 -4.804e-05 float CD2_2 3.1872e-05 float SHAPE 1032,2248 str 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 ADCPHI2 None Unknown ROI None Unknown ROIWIDTH None Unknown GEXPMODE normal str GFA readout mode (loop/normal) DEVICEID dev04 str GFA device id (serial number) REQTIME 1860.0 float [s] Requested exposure time CHECKSUM 9KhoAJhn4Jhn9Jhn str HDU checksum updated 2022-01-14T11:14:03 DATASUM 663748813 str data unit checksum updated 2022-01-14T11:14:03 ======== ==================================================== ======= =============================================== Data: FITS image [int16 (compressed), 2248x1032x72] HDU11 ----- EXTNAME = GUIDE8T GUIDE8 image cube metadata Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 241 int width of table in bytes NAXIS2 72 int number of rows in table CHECKSUM EAADG439E99CE999 str HDU checksum updated 2022-01-14T11:14:03 DATASUM 2061256282 str data unit checksum updated 2022-01-14T11:14:03 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ======== ======== ===== =================== Name Type Units Description ======== ======== ===== =================== EXPTIME float64 Exposure time (sec) NIGHT int64 Observing night DATE-OBS char[26] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) TIME-OBS char[15] HH:MM:SS.SSSSSS (UT) MJD-OBS float64 MJD (start of frame) OPENSHUT char[*] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) ST char[*] HH:MM:SS.SS (Local Sidereal Time at frame start) HEXPOS char[34] Hexapod position GAMBNTT float64 GFA ambient temp (C) GFPGAT float64 GFA FPGA temp (C) GFILTERT float64 GFA filter temp (C) GCOLDTEC float64 GFA cold peltier temp (C) GHOTTEC float64 GFA hot peltier temp (C) GCCDTEMP float64 GFA CCD temp (C) GCAMTEMP float64 GFA camera temp (C) GHUMID2 float64 GFA humidity 2 GHUMID3 float64 GFA humidity 3 CRPIX1 float64 Reference pixel in axis1 CRPIX2 float64 Reference pixel in axis2 CRVAL1 float64 Physical value of the reference pixel CRVAL2 float64 Physical value of the reference pixel ======== ======== ===== =================== HDU12 ----- EXTNAME = GUIDE0 GUIDE0 image cube Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ==================================================== ======= =============================================== KEY Example Value Type Comment ======== ==================================================== ======= =============================================== NAXIS1 8 int width of table in bytes NAXIS2 74304 int number of rows in table ZTILE3 1 int size of tiles to be compressed BZERO 32768 int offset data range to that of unsigned short BSCALE 1 int default scaling factor DEVICE GUIDE0 str Device/controller name UNIT 0 int Unit number/letter UNITTYPE GUIDE str Image Sources/Component EXPID 118526 int Exposure number FRAMES 72 int Number of Frames in Archive TILEID 4403 int DESI Tile ID FIBASSGN /data/tiles/SVN_tiles/004/fiberassign-004403.fits.gz str Fiber assign FLAVOR science str Observation type SEQUENCE _Split str OCS Sequence name PURPOSE Main Survey str Purpose of observing night PROGRAM DARK str Program name PROPID 2020B-5000 str Proposal ID OBSERVER Jessica Chellino, Corentin Ravoux str Names of observers LEAD Martin Landriau 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 20220113 int Observing night TIMESYS UTC str Time system used for date-obs DATE-OBS 2022-01-14T11:03:58.319124 str [UTC] Observation data and start time MJD-OBS 59593.46109166 float Modified Julian Date of observation OPENSHUT 2022-01-14T11:03:58.319124 str Time shutter opened ST 11:13:16.9528 str Local Sidereal time at observation start (HH:MM ACQTIME 15.0 float [s] acqusition image exposure time GUIDTIME 5.0 float [s] guider GFA exposure time REQRA 170.239 float [deg] Requested right ascension (observer input REQDEC -7.093 float [deg] Requested declination (observer input) DELTARA None Unknown [arcsec] Offset], right ascension, observer inp DELTADEC None Unknown [arcsec] Offset], declination, observer input FOCUS 946.6,-231.6,-83.4,-18.3,9.8,139.4 str Telescope focus settings TRUSTEMP 12.267 float [deg] Average Telescope truss temperature (only PMIRTEMP 11.675 float [deg] Average primary mirror temperature (nit,e EPOCH 2000.0 float Epoch of observation EQUINOX 2000.0 float Equinox of selected coordinate reference frame MOUNTAZ 176.725567 float [deg] Mount azimuth angle MOUNTDEC -7.102329 float [deg] Mount declination MOUNTEL 50.883914 float [deg] Mount elevation angle MOUNTHA -2.081118 float [deg] Mount hour angle SKYDEC -7.102329 float [deg] Telescope declination (pointing on sky) SKYRA 170.24163 float [deg] Telescope right ascension (pointing on sk TARGTDEC -7.102329 float [deg] Target declination (to TCS) TARGTRA 170.24163 float [deg] Target right ascension (to TCS) USEETC T bool ETC data available if true ACQCAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Acquisition cameras used GUIDECAM GUIDE0,GUIDE2,GUIDE3,GUIDE5,GUIDE7,GUIDE8 str Guide cameras used for t FOCUSCAM FOCUS1,FOCUS4,FOCUS6,FOCUS9 str Focus cameras used for this exposure SKYCAM SKYCAM0,SKYCAM1 str Sky cameras used for this exposure ADC1PHI None Unknown [deg] ADC 1 angle USESKY T bool DOS Control: use Sky Monitor USEFOCUS T bool DOS Control: use focus HEXPOS 946.7,-231.6,-83.4,-18.3,9.9,138.8 str Hexapod position 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 138.8 float [arcsec] Rotator offset ROTENBLD T bool Rotator enabled ROTRATE 0.513 float [arcsec/min] Rotator rate USEGUIDR T bool DOS Control: use guider USEDONUT T bool DOS Control: use donuts WCSAXES 2 int RADESYS FK5 str Coordinate reference frame of major/minor axes CTYPE1 RA---TAN str CTYPE2 DEC--TAN str CD1_1 -5.6334e-05 float CD1_2 1.6861e-05 float CD2_1 1.836e-05 float CD2_2 5.1764e-05 float SHAPE 1032,2248 str 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 ADCPHI2 None Unknown ROI None Unknown ROIWIDTH None Unknown GEXPMODE normal str GFA readout mode (loop/normal) DEVICEID dev10 str GFA device id (serial number) REQTIME 1860.0 float [s] Requested exposure time CHECKSUM X2EZY2DZX2DZX2DZ str HDU checksum updated 2022-01-14T11:14:04 DATASUM 2619950170 str data unit checksum updated 2022-01-14T11:14:04 ======== ==================================================== ======= =============================================== Data: FITS image [int16 (compressed), 2248x1032x72] HDU13 ----- EXTNAME = GUIDE0T GUIDE0 image cube metadata Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 242 int width of table in bytes NAXIS2 72 int number of rows in table CHECKSUM Jo9AJm64Jm6AJm63 str HDU checksum updated 2022-01-14T11:14:04 DATASUM 2766359628 str data unit checksum updated 2022-01-14T11:14:04 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ======== ======== ===== =================== Name Type Units Description ======== ======== ===== =================== EXPTIME float64 Exposure time (sec) NIGHT int64 Observing night DATE-OBS char[26] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) TIME-OBS char[15] HH:MM:SS.SSSSSS (UT) MJD-OBS float64 MJD (start of frame) OPENSHUT char[*] YYYY-MM-DDTHH:MM:SS.SSSSSS (UT) ST char[*] HH:MM:SS.SS (Local Sidereal Time at frame start) HEXPOS char[34] Hexapod position GAMBNTT float64 GFA ambient temp (C) GFPGAT float64 GFA FPGA temp (C) GFILTERT float64 GFA filter temp (C) GCOLDTEC float64 GFA cold peltier temp (C) GHOTTEC float64 GFA hot peltier temp (C) GCCDTEMP float64 GFA CCD temp (C) GCAMTEMP float64 GFA camera temp (C) GHUMID2 float64 GFA humidity 2 GHUMID3 float64 GFA humidity 3 CRPIX1 float64 Reference pixel in axis1 CRPIX2 float64 Reference pixel in axis2 CRVAL1 float64 Physical value of the reference pixel CRVAL2 float64 Physical value of the reference pixel ======== ======== ===== ===================