NGC253 · 08/09/2026 · 07:26:34 UTC · 4 BANDAS
NGC 253
Composición RGB generada de forma determinista con 000 → rojo, 001 → verde y 002 → azul. La banda adicional se conserva por separado.
Cambia entre RGB y cada filtro para comparar lo que registró el sensor. Los FITS originales permanecen intactos.
Sobre esta observación
NGC 253, conocida como la Galaxia del Escultor, es una gran galaxia espiral situada a unos 13 millones de años luz. La vemos casi de canto, por eso aparece como una franja alargada y brillante atravesada por zonas oscuras de polvo.
Es una galaxia de brote estelar: en su interior se están formando estrellas a un ritmo especialmente intenso, sobre todo cerca del centro. Ese vigor la convierte en uno de los ejemplos más cercanos y fáciles de estudiar de este tipo de actividad galáctica.
Curiosidad: NGC 253 es la galaxia dominante del Grupo del Escultor, uno de los conjuntos de galaxias más próximos a nuestro Grupo Local.
The Schools’ Observatory / Las Cumbres Observatory · Observación solicitada por JeiJoLand
- Objeto
- NGC253
- Primera toma (UTC)
- 2026-09-08 07:26:34.338
- Bandas
- ip, rp, gp, zs
- Exposición total
- 805.116 s
- Telescopio
- 0m4-14
- Observatorio
- LCOGT node at McDonald Observatory
- Resolución por banda
- 9576 × 6388 px
Banda 1 · ip · cabecera FITS
SIMPLE = T / Fits standard
BITPIX = 16 / Bits per pixel
NAXIS = 2 / Number of axes
NAXIS1 = 9576 / Axis length
NAXIS2 = 6388 / Axis length
EXTEND = F / File may contain extensions
BSCALE = 1.000000E0 / REAL = TAPE*BSCALE + BZERO
BZERO = 3.276800E4 /
ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator
DATE = '2026-09-08T07:48:32' / Date FITS file was generated
IRAF-TLM= '2026-09-08T07:48:28' / Time of last modification
ZDITHER0= 1396 / dithering offset when quantizing floats
DATADICV= 'LCOGT-DIC.FITS-0.11.0' / Version number of the data dictionary
HDRVER = 'LCOGT-HDR-1.4.0' / Version number of the headers
SITEID = 'elp ' / ID code of the Observatory site
SITE = 'LCOGT node at McDonald Observatory' / Site of the Observatory
ENCID = 'aqwa ' / ID code of the Enclosure
ENCLOSUR= 'Aqawan-01' / Building containing Telescope
TELID = '0m4a ' / ID code of the Telescope
TELESCOP= '0m4-14 ' / The Name of the Telescope
LATITUDE= 30.6800415 / [deg North] Telescope Latitude
LONGITUD= -104.0150660 / [deg East] Telescope Longitude
HEIGHT = 2030.000 / [m] Altitude of Telescope above sea level
OBSGEO-X= -1330017.310 / [m] Cartesian X co-ord of telescope (WGS84)
OBSGEO-Y= -5328438.752 / [m] Cartesian Y co-ord of telescope (WGS84)
OBSGEO-Z= 3236472.371 / [m] Cartesian Z co-ord of telescope (WGS84)
OBSTYPE = 'EXPOSE ' / Observation type
FRAMENUM= 247 / Running frame number
MOLTYPE = 'EXPOSE ' / Molecule type
MOLNUM = 148 / Molecule number
MOLFRNUM= 1 / Exposure number within molecule
FRMTOTAL= 1 / Total number of exposures within molecule
ORIGNAME= 'elp0m414-sq31-20260907-0247-e00.fits' / Fname written by ICS
OBSTELEM= 'N/A ' / Link to observation telemetry
TIMESYS = 'UTC ' / Time system used
DATE-OBS= '2026-09-08T07:26:34.338' / [UTC] Start date and time of the observati
DAY-OBS = '20260907' / [UTC] Date at start of local observing night
UTSTART = '07:26:34.338' / [UTC] The start time of the observation
UTSTOP = '07:29:55.617' / [UTC] The finish time of the observation
MJD-OBS = 61291.3101167 / [UTC days] Start date/time (Modified Julian Dat
EXPTIME = 201.279 / [s] Actual exposure length
REQTIME = 201.2790000 / [s] Requested exposure length
SUBREAD = F / Is this a stacked (subread) image
NSUBREAD= 1 / Number of stacked (subread) images
SEXPTIME= 201.2790000 / [s] Subread exposure length
FILTER1 = 'ip ' / The first filter wheel filter type
FILTERI1= 'SDSS-IP-017' / The first filter wheel filter id
FILTER2 = 'NOTPRESENT' / The second filter wheel filter type
FILTERI2= 'NOTPRESENT' / The second filter wheel filter id
FILTER3 = 'NOTPRESENT' / The third filter wheel filter type
FILTERI3= 'NOTPRESENT' / The third filter wheel filter id
FILTER = 'ip ' / Filter used
FWID = 'p4fw50-32' / Filter Wheel ID
INSTRUME= 'sq31 ' / Instrument used
INSSTATE= 'OKAY ' / The instrument status
ICSVER = 'PR-1200@0xbc75897' / Version number of the ICS software
CONFMODE= 'full_frame' / Camera mode configuration
CONFNAME= 'N/A ' / The instrument configuration used
DETECTOR= 'sony ' / Detector type
DETECTID= 'qhy600m ' / Detector serial number
GAIN = 1.0 / [electrons/count] Pixel gain
RDNOISE = 3.1000000 / [electrons/pixel] Read noise
DARKCURR= 0.0100000 / [electrons/pixel/s @ 200K] Dark current
SATURATE= 46200.0 / [ADU] Saturation level
MAXLIN = 46200.0 / [ADU] Non-linearity level
RDSPEED = 10.0000000 / [kpix/s] Readout speed used
DETSIZE = '[1:9600,1:6422]' / [pixel] Detector size
AMPNAME = 'default ' / Amplifier name
CCDSEC = '[1:9600,1:6422]' / [pixel] Region of CCD read
CCDSUM = '1 1 ' / CCD on-chip summing/binning
BIASSEC = '[24:9600,6390:6419]' / [binned pixel] Section of bias/overscan data
DATASEC = '[1:9576,1:6388]' / [binned pixel] Data section
TRIMSEC = '[1:9576,1:6388]' / [binned pixel] Section of useful data
ROI = 'UNKNOWN ' / [binned pixel] Region of interest or MULTIPLE
DETSEC = '[1:9576,1:6388]' / [binned pixel] Section of useful data
CCDXPIXE= 0.0000038 / [m] Size of pixels, in X
CCDYPIXE= 0.0000038 / [m] Size of pixels, in Y
PIXSCALE= 0.7400000 / [arcsec/pixel] Nominal pixel scale on sky
CCDSTEMP= 5.0000000 / [deg C] CCD required temperature
CCDATEMP= 5.0000000 / [deg C] CCD actual temperature
CCDSESIG= 'N/A ' / [mK] CCD temp control servo error signal
DRKTCOEF= 0.0550000 / [1/deg C] Dark-scaling temperature coefficient
TELMODE = 'AUTOMATIC' / Telescope mode
TAGID = 'UNSPECIFIED' / Time Allocation Group ID
USERID = 'schoolsobs3' / User ID
PROPID = 'TSO2026B-001' / Proposal ID
GROUPID = '36301C000t004' / Group ID
OBSID = 'UNSPECIFIED' / Observation ID
OBSNOTE = 'UNSPECIFIED' / Observation Note
SCHEDNAM= 'POND ' / Name of scheduler in control
TRACKNUM= '2686507 ' / Request DB tracking number
REQNUM = '4382709 ' / Request DB request number
MOLUID = '1062372660' / Molecule unique ID
BLKTYPE = 'POND ' / Group type
BLKUID = '833632828' / Group unique ID
BLKSDATE= '2026-09-08T07:26:21' / [UTC] Block start date
BLKEDATE= '2026-09-08T07:42:10' / [UTC] Block end date
BLKNOMEX= 949.0000000 / [s] Block nominal exec time
BLKMNPH = 0.7000000 / [(0-1)] Maximum lunar phase required
BLKMNDST= 60.0000000 / [deg] Minimum lunar distance required
BLKSEECO= 'N/A ' / Minimum seeing required
BLKTRNCO= 'N/A ' / Minimum transparency required
BLKAIRCO= '2.0 ' / Maximum airmass required
SCHEDSEE= 3.4074592 / [arcsec] Estimated seeing when group scheduled
SCHEDTRN= 'N/A ' / [(0-1)] Estimated transparency when group sched
TRIGGER = 'N/A ' / External trigger ID
MOSAIC = 'UNSPECIFIED' / Mosaic Pattern Description
DITHER = 'UNSPECIFIED' / Dither Pattern Description
OBRECIPE= 'N/A ' / Observing Recipes required/used
PCRECIPE= 'N/A ' / Processing Recipes required/used
PPRECIPE= 'N/A ' / Post-Processing Recipes required/used
RA = '00:47:33.4714' / [HH:MM:SS.sss] RA where telescope is pointing
DEC = '-25:16:47.558' / [sDD:MM:SS.ss] Dec where telescope is pointing
RADESYS = 'ICRS ' / [[FK5,ICRS]] Fundamental coord. system of the o
LST = '23:40:01.71' / [HH:MM:SS.ss] LST at start of current observati
CAT-RA = '00:47:33.120' / [HH:MM:SS.sss] Catalog RA of the object
CAT-DEC = '-25:17:17.16' / [sDD:MM:SS.ss] Catalog Dec of the object
CAT-EPOC= 2000.0000000 / [Year] Catalog epoch of the coordinates
OFST-RA = '00:47:33.120' / [HH:MM:SS.sss] Catalog RA plus pointing offsets
OFST-DEC= '-25:17:17.16' / [sDD:MM:SS.ss] Catalog Dec plus pointing offset
TPT-RA = '00:48:03.246' / [HH:MM:SS.sss] Telescope demand RA
TPT-DEC = '-24:54:43.32' / [sDD:MM:SS.ss] Telescope demand Dec
SRCTYPE = 'EXTRASOLAR' / Source type
PM-RA = 0.0000000 / [sec/year] Proper motion in RA of the object
PM-DEC = 0.0000000 / [arcsec/year] Proper motion in Dec of the objec
PARALLAX= 0.0000000 / [arcsec] Parallax of the object
RADVEL = 0.0000000 / [km/s] Radial velocity of the object
RATRACK = 0.0000000 / [arcsec/s] Non-sidereal tracking in RA
DECTRACK= 0.0000000 / [arcsec/s] Non-sidereal tracking in Dec
TRACFRAC= 1.0000000 / Fraction of ephemeris rate applied
TELSTATE= 'OKAY ' / Current telescope status
ENGSTATE= 'UNKNOWN ' / Engineering override state
TCSSTATE= 'OKAY ' / TCS state
TCSVER = '3.7 ' / Version number of the TCS software
TPNTMODL= '20260908070834' / Version number of the pointing model
UT1-UTC = -0.0004300 / [s] UT1-UTC
POLARMOX= 0.2039000 / [arcsec] Polar motion X
POLARMOY= 0.3348000 / [arcsec] Polar motion Y
EOPSRC = 'IERS BULL. A 2026/09/03' / Source of the EOP Values
ROLLERDR= 0.0000000 / [rad] Driven roller encoder angle
ROLLERND= 0.0000000 / [rad] Non-driven roller encoder angle
AZDMD = 161.6227334 / [deg] Azimuth axis demand
AZIMUTH = 161.6227463 / [deg] Azimuth axis position
AZSTAT = 'OKAY ' / Azimuth axis state
ALTDMD = 31.7985953 / [deg] Altitude axis demand
ALTITUDE= 31.7986198 / [deg] Altitude axis position
ALTSTAT = 'OKAY ' / Altitude axis state
ROTTYPE = 'NONE ' / Selected image derotator
ROTMODE = 'FIXED ' / Rotator mode
ROTDMD = 0.0000000 / [deg] Rotator axis demand
ROTANGLE= 'N/A ' / [deg] Rotator axis position
ROTSKYPA= -0.1600000 / [deg] Rotator position angle
ROTSTAT = 'OFF ' / Rotator axis state
AIRMASS = 1.8873592 / Effective mean airmass
AMSTART = 1.8932331 / Airmass at start of observation
AMEND = 1.8814854 / Airmass at end of observation
ENC1STAT= 'OPEN ' / Enclosure shutter 1 state
ENC2STAT= 'OPEN ' / Enclosure shutter 2 state
ENCAZ = 73.4500664 / [deg] Enclosure azimuth
ENCWLIGT= 'OFF ' / Enclosure white lights state
ENCRLIGT= 'OFF ' / Enclosure red lights state
FSTATION= 'NASMYTH DRIVE SIDE' / Focal station, e.g. Cassegrain, Nasmyth WS
FOLDSTAT= 'N/A ' / Fold mirror state
FOLDPORT= '0 ' / Fold mirror port
FOLDPOSN= 'N/A, N/A' / [{mm,deg}] Fold mirror position (r, theta)
M1COVER = 'STOWED ' / M1 mirror cover state
M1HRTMN = 'UNKNOWN ' / M1 Hartmann screen state
FOCDMD = 0.0000000 / [mm] Demanded focus position in focal plane
FOCPOSN = -0.0000516 / [mm] Actual focus position in focal plane
FOCTELZP= 5.8336660 / [mm] Telescope default focus
FOCINOFF= 0.0000000 / [mm] Instrument focus offset
FOCTOFF = -0.0092120 / [mm] Thermal correction value
FOCZOFF = 0.0333822 / [mm] Zenith compression correction
FOCAFOFF= -0.0840000 / [mm] Autofocus offset in focal plane
FOCOBOFF= 0.0000000 / [mm] Observer focus offset/defocus in focal pla
FOCFLOFF= -1.0000000 / [mm] Filter focus offset in focal plane
FOCSTAT = 'HALTED ' / Focus state
M2PITCH = 0.0000000 / [arcsec] M2 tilt about vertex in pitch directio
M2ROLL = 0.0000000 / [arcsec] M2 tilt about vertex in roll direction
AUXROLL = 0.0000000 / [arcsec] Auxiliary pointing corrections in roll
AUXPITCH= 0.0000000 / [arcsec] Auxiliary pointing corrections in pitc
COMMENT Original key: "CTYPE1"
_TYPE1 = 'RA---TAN' / Type of WCS Projection
COMMENT Original key: "CTYPE2"
_TYPE2 = 'DEC--TAN' / Type of WCS Projection
COMMENT Original key: "CRPIX1"
_RPIX1 = 4788.5 / [pixel] Coordinate of reference point (axis 1)
COMMENT Original key: "CRPIX2"
_RPIX2 = 3194.5 / [pixel] Coordinate of reference point (axis 2)
COMMENT Original key: "CRVAL1"
_RVAL1 = 11.8894642667 / [deg] RA at the reference pixel
COMMENT Original key: "CRVAL2"
_RVAL2 = -25.2798772277 / [deg] Dec at the reference pixel
COMMENT Original key: "CUNIT1"
_UNIT1 = 'deg ' / Units of RA
COMMENT Original key: "CUNIT2"
_UNIT2 = 'deg ' / Units of Dec
COMMENT Original key: "CD1_1"
_D1_1 = -0.000206342925392 / WCS CD transformation matrix
COMMENT Original key: "CD1_2"
_D1_2 = -2.60025045551E-07 / WCS CD transformation matrix
COMMENT Original key: "CD2_1"
_D2_1 = -2.60025045551E-07 / WCS CD transformation matrix
COMMENT Original key: "CD2_2"
_D2_2 = 0.000206342925392 / WCS CD transformation matrix
WMSSTATE= 'OKAY ' / WMS system state
WMSHUMID= 70.5999985 / [%] Current percentage humidity
WMSTEMP = 19.7000008 / [deg C] External temperature
WMSPRES = 803.4007499 / [mbar] Atmospheric pressure
WINDSPEE= 13.6799998 / [km/h] Windspeed
WINDDIR = 124.0000000 / [deg E of N] Wind direction
WMSRAIN = 'CLEAR ' / Rain alert
WMSMOIST= 264.4666748 / [mV] Moisture level
WMSDEWPT= 14.1999998 / [deg C] Dewpoint
WMSCLOUD= -19.4640000 / [deg C] Boltwood sky temperature
WMSSKYBR= 22.0000000 / [mag/arcsec^2] Measured sky brightness
SKYMAG = 22.0000000 / [mag/arcsec^2] Computed (expected) sky brightne
TUBETEMP= 16.6400000 / [deg C] Temperature of the telescope tube
M1TEMP = 'UNKNOWN ' / [deg C] Primary mirror temperature
FOCTEMP = 16.6450000 / [deg C] Focus temperature
ISSTEMP = 'UNKNOWN ' / [deg C] ISS temperature
REFPRES = 803.4007499 / [mbar] Pressure used in refraction calculation
REFTEMP = 19.7000008 / [deg C] Temperature used in refraction calculat
REFHUMID= 70.5999985 / [%] Humidity used in refraction calculation
AGSTATE = 'IDLE ' / Autoguider software state
AGCAM = 'sq31 ' / Camera used for autoguiding
AGLCKFRC= 0.00 / [%] Fraction of time AG locked
AGMODE = 'ON ' / Autoguider mode
AGRA = 'UNKNOWN ' / [deg] RA of guide star
AGDEC = 'UNKNOWN ' / [deg] Dec of guide star
AGGMAG = 'UNKNOWN ' / [mag] Autoguider guide star mag
AGFWHM = 5.5682262 / [arcsec] Autoguider FWHM
AGNSRC = 0 / Number of potential guide stars
AGDX = 0.0000000 / [pixel] Autoguider correction in X
AGDY = 0.0000000 / [pixel] Autoguider correction in Y
AGMIRDMD= 'UNKNOWN ' / [mm] Autoguider mirror demand
AGMIRPOS= 'N/A, N/A' / Autoguider mirror position
AGMIRST = 'N/A ' / Autoguider mirror state
AGFOCDMD= 'UNKNOWN ' / [mm] Autoguider focus demand
AGFOCUS = 'UNKNOWN ' / [mm] Autoguider focus position
AGFOCOFF= 0.0000000 / [mm] Autoguider relative focus offset
AGFOCST = 'UNKNOWN ' / Autoguider focus state
AGFILTER= 'ip ' / Autoguider filter
AGFILTID= 'SDSS-IP-017' / Autoguider filter id
AGFILST = 'Enabled ' / Autoguider filter state
MOONSTAT= 'DOWN ' / [{UP, DOWN}] Moon position at obs start
MOONFRAC= 0.0968730 / [(0 - 1)] Lunar Illuminated Fraction
MOONDIST= 124.6002043 / [deg] Lunar distance from target
MOONALT = -25.3520246 / [deg] Lunar altitude
SUNDIST = 148.8670759 / [deg] Solar distance from target
SUNALT = -52.8384062 / [deg] Solar altitude
STACK = F / Image is part of a stack
L1PUBDAT= '2026-09-08T07:26:34.338000' / [UTC] Date the frame becomes public
L1IDMASK= 'elp0m411-sq31-20230605-bpm-full_frame.fits.fz' / ID of mask
L1IDRDN = 'elp0m411-sq31-20230530-readnoise-full_frame.fits.fz' / Readnoise map
SATFRAC = 1.08675905740683E-05 / Fraction of Pixels that are Saturated
L1STATOV= '1 ' / Status flag for overscan correction
OVERSCAN= 488.9511287803493 / Overscan value that was subtracted
OVERSCN1= '488.95 ' / Overscan value that was subtracted
BIASLVL = -0.1508728300159365 / Bias level that was removed after overscan
L1IDBIAS= 'elp0m414-sq31-20260907-bias-bin1x1.fits.fz' / ID of bias frame
L1STATBI= 1 / Status flag for bias frame correction
L1IDDARK= 'elp0m414-sq31-20260907-dark-bin1x1.fits.fz' / ID of dark frame
L1STATDA= 1 / Status flag for dark frame correction
DRKTSCAL= 1.0 / Temperature scaling factor applied to dark imag
L1IDFLAT= 'elp0m414-sq31-20260906-skyflat-bin1x1-ip.fits.fz' / ID of flat frame
L1STATFL= 1 / Status flag for flat field correction
L1MEAN = 115.18232853842252 / [counts] Sigma clipped mean of frame background
L1MEDIAN= 115.20942278786505 / [counts] Median of frame background
L1SIGMA = 0.9275911475300789 / [counts] Robust std dev of frame background
L1FWHM = 3.0498938312323487 / [arcsec] Frame FWHM in arcsec
L1FWTM = 1.7392963052517667 / Ratio of FWHM to Full-Width Tenth Max
L1ELLIP = 0.0918669637995272 / Mean image ellipticity (1-B/A)
L1ELLIPA= -2.365811504924148 / [deg] PA of mean image ellipticity
OBSGEO-L= -104.01506600307602 / [deg] Longitude of telescope, East positive
OBSGEO-B= 30.680041446578734 / [deg] Latitude or telescope, North positive
OBSGEO-H= 2030.0002155144325 / [m] Height of telescope
WCSERR = 0 / Error status of WCS fit. 0 for no error
PNTOFST = 29.983254626438598 / [arcsec] offset of requested and solved center
L1ZP = 19.57648180576114 / Instrumental zeropoint [mag]
L1ZPERR = 0.005290066107816571 / Error on Instrumental zeropoint [mag]
L1COLORU= 'r-i ' / Color used for calibration
L1COLOR = -0.07383728866981178 / Color coefficient [mag]
L1COLERR= 0.010893649773633038 / Error on color coefficient [mag]
RLEVEL = 91 / Reduction level
PIPEVER = '1.37.1 ' / Pipeline version
COMMENT Original key: "END"
COMMENT
COMMENT --Start of Astrometry.net WCS solution--
COMMENT --Put in by the new-wcs program--
COMMENT
WCSAXES = 2 / no comment
CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions
CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions
EQUINOX = 2000.0 / Equatorial coordinates definition (yr)
LONPOLE = 180.0 / no comment
LATPOLE = 0.0 / no comment
CRVAL1 = 11.8893657966 / RA of reference point
CRVAL2 = -25.2798010912 / DEC of reference point
CRPIX1 = 4788.5 / X reference pixel
CRPIX2 = 3194.5 / Y reference pixel
CUNIT1 = 'deg ' / X pixel scale units
CUNIT2 = 'deg ' / Y pixel scale units
CD1_1 = -0.000206149979495 / Transformation matrix
CD1_2 = -3.24999569358E-07 / no comment
CD2_1 = -2.50849567902E-07 / no comment
CD2_2 = 0.000206344828217 / no comment
IMAGEW = 9576 / Image width, in pixels.
IMAGEH = 6388 / Image height, in pixels.
A_ORDER = 2 / Polynomial order, axis 1
A_0_0 = 0 / no comment
A_0_1 = 0 / no comment
A_0_2 = -4.44701021331E-08 / no comment
A_1_0 = 0 / no comment
A_1_1 = 5.22138412511E-08 / no comment
A_2_0 = -1.44457545146E-07 / no comment
B_ORDER = 2 / Polynomial order, axis 2
B_0_0 = 0 / no comment
B_0_1 = 0 / no comment
B_0_2 = 5.68283650343E-08 / no comment
B_1_0 = 0 / no comment
B_1_1 = -1.08362400716E-07 / no comment
B_2_0 = 9.92610532463E-09 / no comment
AP_ORDER= 2 / Inv polynomial order, axis 1
AP_0_0 = 1.46248824369E-06 / no comment
AP_0_1 = -2.86462756404E-07 / no comment
AP_0_2 = 4.44700503E-08 / no comment
AP_1_0 = 7.22800543463E-07 / no comment
AP_1_1 = -5.22137906762E-08 / no comment
AP_2_0 = 1.44457434517E-07 / no comment
BP_ORDER= 2 / Inv polynomial order, axis 2
BP_0_0 = -4.05059500401E-07 / no comment
BP_0_1 = 3.15155328294E-07 / no comment
BP_0_2 = -5.6828311006E-08 / no comment
BP_1_0 = -1.48827513368E-07 / no comment
BP_1_1 = 1.08362340469E-07 / no comment
BP_2_0 = -9.92610032102E-09 / no comment
HISTORY Created by the Astrometry.net suite.
HISTORY For more details, see http://astrometry.net.
HISTORY Git URL https://github.com/dstndstn/astrometry.net
HISTORY Git revision 0.93
HISTORY Git date Mon_Dec_19_16:41:15_2022_-0500
HISTORY This is a WCS header was created by Astrometry.net.
COMMENT Original WCS key: "DATE"
_ATE = '2026-09-08T07:49:10' / Date this file was created.
COMMENT -- onefield solver parameters: --
COMMENT Index(0):
COMMENT /usr/share/astrometry/index-tycho2-12.littleendian.fits
COMMENT Index(1):
COMMENT /usr/share/astrometry/index-tycho2-11.littleendian.fits
COMMENT Index(2):
COMMENT /usr/share/astrometry/index-tycho2-10.littleendian.fits
COMMENT Index(3):
COMMENT /usr/share/astrometry/index-tycho2-09.littleendian.fits
COMMENT Index(4):
COMMENT /usr/share/astrometry/index-tycho2-08.littleendian.fits
COMMENT Index(5):
COMMENT /usr/share/astrometry/index-tycho2-07.littleendian.fits
COMMENT Index(6): /usr/share/astrometry/index-2mass-12.fits
COMMENT Index(7): /usr/share/astrometry/index-2mass-11.fits
COMMENT Index(8): /usr/share/astrometry/index-2mass-10.fits
COMMENT Index(9): /usr/share/astrometry/index-2mass-09.fits
COMMENT Index(10): /usr/share/astrometry/index-2mass-08.fits
COMMENT Index(11): /usr/share/astrometry/index-2mass-07-04.fits
COMMENT Index(12): /usr/share/astrometry/index-2mass-06-04.fits
COMMENT Index(13): /usr/share/astrometry/index-2mass-05-04.fits
COMMENT Index(14): /usr/share/astrometry/index-2mass-04-16.fits
COMMENT Index(15): /usr/share/astrometry/index-2mass-03-16.fits
COMMENT Field name:
COMMENT /home/httpd/nso/goobs/indata/tmp/885726tmp36301C000t004.ax
COMMENT y
COMMENT Field scale lower: 0.735407 arcsec/pixel
COMMENT Field scale upper: 0.750263 arcsec/pixel
COMMENT X col name: X
COMMENT Y col name: Y
COMMENT Start obj: 0
COMMENT End obj: 10
COMMENT Solved_in: (null)
COMMENT Solved_out:
COMMENT /home/httpd/nso/goobs/indata/tmp/885726tmp36301C000t004.so
COMMENT lved
COMMENT Parity: 2
COMMENT Codetol: 0.01
COMMENT Verify pixels: 1 pix
COMMENT Maxquads: 0
COMMENT Maxmatches: 0
COMMENT Cpu limit: 300.000000 s
COMMENT Time limit: 0 s
COMMENT Total time limit: 0 s
COMMENT Total CPU limit: 300.000000 s
COMMENT Tweak: yes
COMMENT Tweak AB order: 2
COMMENT Tweak ABP order: 2
COMMENT --
COMMENT -- properties of the matching quad: --
COMMENT index id: 4203
COMMENT index healpix: 16
COMMENT index hpnside: 2
COMMENT log odds: 7479.49
COMMENT odds: inf
COMMENT quadno: 0
COMMENT stars: 0,0,0,0
COMMENT field: 0,0,0,0
COMMENT code error: 0
COMMENT nmatch: 2294
COMMENT nconflict: 103
COMMENT nfield: 5458
COMMENT nindex: 2679
COMMENT scale: 0.742491 arcsec/pix
COMMENT parity: 0
COMMENT quads tried: 0
COMMENT quads matched: 0
COMMENT quads verified: 0
COMMENT objs tried: 1
COMMENT cpu time: 5.36959
COMMENT --
COMMENT
COMMENT --End of Astrometry.net WCS--
COMMENT --(Put in by the new-wcs program)--
COMMENT
OBJECT = 'NGC253'
NSOOBSR = 'JeiJoLand'
NSOFILT = 'isdss'
NSODIST = 10.5493
NSODISTU= 'million light years'
NSOPSCL = 37.8468
NSOPSCLU= 'light years'
END Banda 2 · rp · cabecera FITS
SIMPLE = T / Fits standard
BITPIX = 16 / Bits per pixel
NAXIS = 2 / Number of axes
NAXIS1 = 9576 / Axis length
NAXIS2 = 6388 / Axis length
EXTEND = F / File may contain extensions
BSCALE = 1.000000E0 / REAL = TAPE*BSCALE + BZERO
BZERO = 3.276800E4 /
ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator
DATE = '2026-09-08T07:44:09' / Date FITS file was generated
IRAF-TLM= '2026-09-08T07:44:06' / Time of last modification
ZDITHER0= 5214 / dithering offset when quantizing floats
DATADICV= 'LCOGT-DIC.FITS-0.11.0' / Version number of the data dictionary
HDRVER = 'LCOGT-HDR-1.4.0' / Version number of the headers
SITEID = 'elp ' / ID code of the Observatory site
SITE = 'LCOGT node at McDonald Observatory' / Site of the Observatory
ENCID = 'aqwa ' / ID code of the Enclosure
ENCLOSUR= 'Aqawan-01' / Building containing Telescope
TELID = '0m4a ' / ID code of the Telescope
TELESCOP= '0m4-14 ' / The Name of the Telescope
LATITUDE= 30.6800415 / [deg North] Telescope Latitude
LONGITUD= -104.0150660 / [deg East] Telescope Longitude
HEIGHT = 2030.000 / [m] Altitude of Telescope above sea level
OBSGEO-X= -1330017.310 / [m] Cartesian X co-ord of telescope (WGS84)
OBSGEO-Y= -5328438.752 / [m] Cartesian Y co-ord of telescope (WGS84)
OBSGEO-Z= 3236472.371 / [m] Cartesian Z co-ord of telescope (WGS84)
OBSTYPE = 'EXPOSE ' / Observation type
FRAMENUM= 248 / Running frame number
MOLTYPE = 'EXPOSE ' / Molecule type
MOLNUM = 149 / Molecule number
MOLFRNUM= 1 / Exposure number within molecule
FRMTOTAL= 1 / Total number of exposures within molecule
ORIGNAME= 'elp0m414-sq31-20260907-0248-e00.fits' / Fname written by ICS
OBSTELEM= 'N/A ' / Link to observation telemetry
TIMESYS = 'UTC ' / Time system used
DATE-OBS= '2026-09-08T07:30:07.177' / [UTC] Start date and time of the observati
DAY-OBS = '20260907' / [UTC] Date at start of local observing night
UTSTART = '07:30:07.177' / [UTC] The start time of the observation
UTSTOP = '07:33:28.456' / [UTC] The finish time of the observation
MJD-OBS = 61291.3125741 / [UTC days] Start date/time (Modified Julian Dat
EXPTIME = 201.279 / [s] Actual exposure length
REQTIME = 201.2790000 / [s] Requested exposure length
SUBREAD = F / Is this a stacked (subread) image
NSUBREAD= 1 / Number of stacked (subread) images
SEXPTIME= 201.2790000 / [s] Subread exposure length
FILTER1 = 'rp ' / The first filter wheel filter type
FILTERI1= 'SDSS-RP-012' / The first filter wheel filter id
FILTER2 = 'NOTPRESENT' / The second filter wheel filter type
FILTERI2= 'NOTPRESENT' / The second filter wheel filter id
FILTER3 = 'NOTPRESENT' / The third filter wheel filter type
FILTERI3= 'NOTPRESENT' / The third filter wheel filter id
FILTER = 'rp ' / Filter used
FWID = 'p4fw50-32' / Filter Wheel ID
INSTRUME= 'sq31 ' / Instrument used
INSSTATE= 'OKAY ' / The instrument status
ICSVER = 'PR-1200@0xbc75897' / Version number of the ICS software
CONFMODE= 'full_frame' / Camera mode configuration
CONFNAME= 'N/A ' / The instrument configuration used
DETECTOR= 'sony ' / Detector type
DETECTID= 'qhy600m ' / Detector serial number
GAIN = 1.0 / [electrons/count] Pixel gain
RDNOISE = 3.1000000 / [electrons/pixel] Read noise
DARKCURR= 0.0100000 / [electrons/pixel/s @ 200K] Dark current
SATURATE= 46200.0 / [ADU] Saturation level
MAXLIN = 46200.0 / [ADU] Non-linearity level
RDSPEED = 10.0000000 / [kpix/s] Readout speed used
DETSIZE = '[1:9600,1:6422]' / [pixel] Detector size
AMPNAME = 'default ' / Amplifier name
CCDSEC = '[1:9600,1:6422]' / [pixel] Region of CCD read
CCDSUM = '1 1 ' / CCD on-chip summing/binning
BIASSEC = '[24:9600,6390:6419]' / [binned pixel] Section of bias/overscan data
DATASEC = '[1:9576,1:6388]' / [binned pixel] Data section
TRIMSEC = '[1:9576,1:6388]' / [binned pixel] Section of useful data
ROI = 'UNKNOWN ' / [binned pixel] Region of interest or MULTIPLE
DETSEC = '[1:9576,1:6388]' / [binned pixel] Section of useful data
CCDXPIXE= 0.0000038 / [m] Size of pixels, in X
CCDYPIXE= 0.0000038 / [m] Size of pixels, in Y
PIXSCALE= 0.7400000 / [arcsec/pixel] Nominal pixel scale on sky
CCDSTEMP= 5.0000000 / [deg C] CCD required temperature
CCDATEMP= 5.0000000 / [deg C] CCD actual temperature
CCDSESIG= 'N/A ' / [mK] CCD temp control servo error signal
DRKTCOEF= 0.0550000 / [1/deg C] Dark-scaling temperature coefficient
TELMODE = 'AUTOMATIC' / Telescope mode
TAGID = 'UNSPECIFIED' / Time Allocation Group ID
USERID = 'schoolsobs3' / User ID
PROPID = 'TSO2026B-001' / Proposal ID
GROUPID = '36301C000t004' / Group ID
OBSID = 'UNSPECIFIED' / Observation ID
OBSNOTE = 'UNSPECIFIED' / Observation Note
SCHEDNAM= 'POND ' / Name of scheduler in control
TRACKNUM= '2686507 ' / Request DB tracking number
REQNUM = '4382709 ' / Request DB request number
MOLUID = '1062372660' / Molecule unique ID
BLKTYPE = 'POND ' / Group type
BLKUID = '833632828' / Group unique ID
BLKSDATE= '2026-09-08T07:26:21' / [UTC] Block start date
BLKEDATE= '2026-09-08T07:42:10' / [UTC] Block end date
BLKNOMEX= 949.0000000 / [s] Block nominal exec time
BLKMNPH = 0.7000000 / [(0-1)] Maximum lunar phase required
BLKMNDST= 60.0000000 / [deg] Minimum lunar distance required
BLKSEECO= 'N/A ' / Minimum seeing required
BLKTRNCO= 'N/A ' / Minimum transparency required
BLKAIRCO= '2.0 ' / Maximum airmass required
SCHEDSEE= 3.4074592 / [arcsec] Estimated seeing when group scheduled
SCHEDTRN= 'N/A ' / [(0-1)] Estimated transparency when group sched
TRIGGER = 'N/A ' / External trigger ID
MOSAIC = 'UNSPECIFIED' / Mosaic Pattern Description
DITHER = 'UNSPECIFIED' / Dither Pattern Description
OBRECIPE= 'N/A ' / Observing Recipes required/used
PCRECIPE= 'N/A ' / Processing Recipes required/used
PPRECIPE= 'N/A ' / Post-Processing Recipes required/used
RA = '00:47:33.3898' / [HH:MM:SS.sss] RA where telescope is pointing
DEC = '-25:16:46.916' / [sDD:MM:SS.ss] Dec where telescope is pointing
RADESYS = 'ICRS ' / [[FK5,ICRS]] Fundamental coord. system of the o
LST = '23:43:35.19' / [HH:MM:SS.ss] LST at start of current observati
CAT-RA = '00:47:33.120' / [HH:MM:SS.sss] Catalog RA of the object
CAT-DEC = '-25:17:17.16' / [sDD:MM:SS.ss] Catalog Dec of the object
CAT-EPOC= 2000.0000000 / [Year] Catalog epoch of the coordinates
OFST-RA = '00:47:33.120' / [HH:MM:SS.sss] Catalog RA plus pointing offsets
OFST-DEC= '-25:17:17.16' / [sDD:MM:SS.ss] Catalog Dec plus pointing offset
TPT-RA = '00:48:03.323' / [HH:MM:SS.sss] Telescope demand RA
TPT-DEC = '-24:54:42.17' / [sDD:MM:SS.ss] Telescope demand Dec
SRCTYPE = 'EXTRASOLAR' / Source type
PM-RA = 0.0000000 / [sec/year] Proper motion in RA of the object
PM-DEC = 0.0000000 / [arcsec/year] Proper motion in Dec of the objec
PARALLAX= 0.0000000 / [arcsec] Parallax of the object
RADVEL = 0.0000000 / [km/s] Radial velocity of the object
RATRACK = 0.0000000 / [arcsec/s] Non-sidereal tracking in RA
DECTRACK= 0.0000000 / [arcsec/s] Non-sidereal tracking in Dec
TRACFRAC= 1.0000000 / Fraction of ephemeris rate applied
TELSTATE= 'OKAY ' / Current telescope status
ENGSTATE= 'UNKNOWN ' / Engineering override state
TCSSTATE= 'OKAY ' / TCS state
TCSVER = '3.7 ' / Version number of the TCS software
TPNTMODL= '20260908070834' / Version number of the pointing model
UT1-UTC = -0.0004300 / [s] UT1-UTC
POLARMOX= 0.2039000 / [arcsec] Polar motion X
POLARMOY= 0.3348000 / [arcsec] Polar motion Y
EOPSRC = 'IERS BULL. A 2026/09/03' / Source of the EOP Values
ROLLERDR= 0.0000000 / [rad] Driven roller encoder angle
ROLLERND= 0.0000000 / [rad] Non-driven roller encoder angle
AZDMD = 162.5299694 / [deg] Azimuth axis demand
AZIMUTH = 162.5299677 / [deg] Azimuth axis position
AZSTAT = 'OKAY ' / Azimuth axis state
ALTDMD = 32.0340317 / [deg] Altitude axis demand
ALTITUDE= 32.0339035 / [deg] Altitude axis position
ALTSTAT = 'OKAY ' / Altitude axis state
ROTTYPE = 'NONE ' / Selected image derotator
ROTMODE = 'FIXED ' / Rotator mode
ROTDMD = 0.0000000 / [deg] Rotator axis demand
ROTANGLE= 'N/A ' / [deg] Rotator axis position
ROTSKYPA= -0.1600000 / [deg] Rotator position angle
ROTSTAT = 'OFF ' / Rotator axis state
AIRMASS = 1.8753676 / Effective mean airmass
AMSTART = 1.8808725 / Airmass at start of observation
AMEND = 1.8698628 / Airmass at end of observation
ENC1STAT= 'OPEN ' / Enclosure shutter 1 state
ENC2STAT= 'OPEN ' / Enclosure shutter 2 state
ENCAZ = 74.2763045 / [deg] Enclosure azimuth
ENCWLIGT= 'OFF ' / Enclosure white lights state
ENCRLIGT= 'OFF ' / Enclosure red lights state
FSTATION= 'NASMYTH DRIVE SIDE' / Focal station, e.g. Cassegrain, Nasmyth WS
FOLDSTAT= 'N/A ' / Fold mirror state
FOLDPORT= '0 ' / Fold mirror port
FOLDPOSN= 'N/A, N/A' / [{mm,deg}] Fold mirror position (r, theta)
M1COVER = 'STOWED ' / M1 mirror cover state
M1HRTMN = 'UNKNOWN ' / M1 Hartmann screen state
FOCDMD = 0.0000000 / [mm] Demanded focus position in focal plane
FOCPOSN = -0.0000516 / [mm] Actual focus position in focal plane
FOCTELZP= 5.8336660 / [mm] Telescope default focus
FOCINOFF= 0.0000000 / [mm] Instrument focus offset
FOCTOFF = -0.0098840 / [mm] Thermal correction value
FOCZOFF = 0.0330584 / [mm] Zenith compression correction
FOCAFOFF= -0.0840000 / [mm] Autofocus offset in focal plane
FOCOBOFF= 0.0000000 / [mm] Observer focus offset/defocus in focal pla
FOCFLOFF= -1.0000000 / [mm] Filter focus offset in focal plane
FOCSTAT = 'HALTED ' / Focus state
M2PITCH = 0.0000000 / [arcsec] M2 tilt about vertex in pitch directio
M2ROLL = 0.0000000 / [arcsec] M2 tilt about vertex in roll direction
AUXROLL = 0.0000000 / [arcsec] Auxiliary pointing corrections in roll
AUXPITCH= 0.0000000 / [arcsec] Auxiliary pointing corrections in pitc
COMMENT Original key: "CTYPE1"
_TYPE1 = 'RA---TAN' / Type of WCS Projection
COMMENT Original key: "CTYPE2"
_TYPE2 = 'DEC--TAN' / Type of WCS Projection
COMMENT Original key: "CRPIX1"
_RPIX1 = 4788.5 / [pixel] Coordinate of reference point (axis 1)
COMMENT Original key: "CRPIX2"
_RPIX2 = 3194.5 / [pixel] Coordinate of reference point (axis 2)
COMMENT Original key: "CRVAL1"
_RVAL1 = 11.8891241124 / [deg] RA at the reference pixel
COMMENT Original key: "CRVAL2"
_RVAL2 = -25.2796989456 / [deg] Dec at the reference pixel
COMMENT Original key: "CUNIT1"
_UNIT1 = 'deg ' / Units of RA
COMMENT Original key: "CUNIT2"
_UNIT2 = 'deg ' / Units of Dec
COMMENT Original key: "CD1_1"
_D1_1 = -0.000206349287307 / WCS CD transformation matrix
COMMENT Original key: "CD1_2"
_D1_2 = -2.21226826506E-07 / WCS CD transformation matrix
COMMENT Original key: "CD2_1"
_D2_1 = -2.21226826506E-07 / WCS CD transformation matrix
COMMENT Original key: "CD2_2"
_D2_2 = 0.000206349287307 / WCS CD transformation matrix
WMSSTATE= 'OKAY ' / WMS system state
WMSHUMID= 70.5000000 / [%] Current percentage humidity
WMSTEMP = 19.7000008 / [deg C] External temperature
WMSPRES = 803.4007499 / [mbar] Atmospheric pressure
WINDSPEE= 13.8239997 / [km/h] Windspeed
WINDDIR = 125.0000000 / [deg E of N] Wind direction
WMSRAIN = 'CLEAR ' / Rain alert
WMSMOIST= 264.4666748 / [mV] Moisture level
WMSDEWPT= 14.1999998 / [deg C] Dewpoint
WMSCLOUD= -19.3580000 / [deg C] Boltwood sky temperature
WMSSKYBR= 22.0000000 / [mag/arcsec^2] Measured sky brightness
SKYMAG = 22.0000000 / [mag/arcsec^2] Computed (expected) sky brightne
TUBETEMP= 16.7650000 / [deg C] Temperature of the telescope tube
M1TEMP = 'UNKNOWN ' / [deg C] Primary mirror temperature
FOCTEMP = 16.7650000 / [deg C] Focus temperature
ISSTEMP = 'UNKNOWN ' / [deg C] ISS temperature
REFPRES = 803.4007499 / [mbar] Pressure used in refraction calculation
REFTEMP = 19.7000008 / [deg C] Temperature used in refraction calculat
REFHUMID= 70.5000000 / [%] Humidity used in refraction calculation
AGSTATE = 'GUIDE_SOURCE_LOST_TEMP' / Autoguider software state
AGCAM = 'sq31 ' / Camera used for autoguiding
AGLCKFRC= 0.00 / [%] Fraction of time AG locked
AGMODE = 'ON ' / Autoguider mode
AGRA = 'UNKNOWN ' / [deg] RA of guide star
AGDEC = 'UNKNOWN ' / [deg] Dec of guide star
AGGMAG = 'UNKNOWN ' / [mag] Autoguider guide star mag
AGFWHM = 0.0000000 / [arcsec] Autoguider FWHM
AGNSRC = 0 / Number of potential guide stars
AGDX = 0.0000000 / [pixel] Autoguider correction in X
AGDY = 0.0000000 / [pixel] Autoguider correction in Y
AGMIRDMD= 'UNKNOWN ' / [mm] Autoguider mirror demand
AGMIRPOS= 'N/A, N/A' / Autoguider mirror position
AGMIRST = 'N/A ' / Autoguider mirror state
AGFOCDMD= 'UNKNOWN ' / [mm] Autoguider focus demand
AGFOCUS = 'UNKNOWN ' / [mm] Autoguider focus position
AGFOCOFF= 0.0000000 / [mm] Autoguider relative focus offset
AGFOCST = 'UNKNOWN ' / Autoguider focus state
AGFILTER= 'rp ' / Autoguider filter
AGFILTID= 'SDSS-RP-012' / Autoguider filter id
AGFILST = 'Enabled ' / Autoguider filter state
MOONSTAT= 'DOWN ' / [{UP, DOWN}] Moon position at obs start
MOONFRAC= 0.0966654 / [(0 - 1)] Lunar Illuminated Fraction
MOONDIST= 124.6398290 / [deg] Lunar distance from target
MOONALT = -24.8471505 / [deg] Lunar altitude
SUNDIST = 148.8292760 / [deg] Solar distance from target
SUNALT = -52.6533651 / [deg] Solar altitude
STACK = F / Image is part of a stack
L1PUBDAT= '2026-09-08T07:30:07.177000' / [UTC] Date the frame becomes public
L1IDMASK= 'elp0m411-sq31-20230605-bpm-full_frame.fits.fz' / ID of mask
L1IDRDN = 'elp0m411-sq31-20230530-readnoise-full_frame.fits.fz' / Readnoise map
SATFRAC = 1.75827883317761E-05 / Fraction of Pixels that are Saturated
L1STATOV= '1 ' / Status flag for overscan correction
OVERSCAN= 489.06495802346427 / Overscan value that was subtracted
OVERSCN1= '489.06 ' / Overscan value that was subtracted
BIASLVL = -0.1508728300159365 / Bias level that was removed after overscan
L1IDBIAS= 'elp0m414-sq31-20260907-bias-bin1x1.fits.fz' / ID of bias frame
L1STATBI= 1 / Status flag for bias frame correction
L1IDDARK= 'elp0m414-sq31-20260907-dark-bin1x1.fits.fz' / ID of dark frame
L1STATDA= 1 / Status flag for dark frame correction
DRKTSCAL= 1.0 / Temperature scaling factor applied to dark imag
L1IDFLAT= 'elp0m414-sq31-20260904-skyflat-bin1x1-rp.fits.fz' / ID of flat frame
L1STATFL= 1 / Status flag for flat field correction
L1MEAN = 130.06072459308186 / [counts] Sigma clipped mean of frame background
L1MEDIAN= 130.09598829151753 / [counts] Median of frame background
L1SIGMA = 1.126678248810768 / [counts] Robust std dev of frame background
L1FWHM = 2.9690462140831437 / [arcsec] Frame FWHM in arcsec
L1FWTM = 1.7035989012830985 / Ratio of FWHM to Full-Width Tenth Max
L1ELLIP = 0.11117663373948086 / Mean image ellipticity (1-B/A)
L1ELLIPA= 16.861544011012963 / [deg] PA of mean image ellipticity
OBSGEO-L= -104.01506600307602 / [deg] Longitude of telescope, East positive
OBSGEO-B= 30.680041446578734 / [deg] Latitude or telescope, North positive
OBSGEO-H= 2030.0002155144325 / [m] Height of telescope
WCSERR = 0 / Error status of WCS fit. 0 for no error
PNTOFST = 30.464346843667336 / [arcsec] offset of requested and solved center
L1ZP = 20.610941723002107 / Instrumental zeropoint [mag]
L1ZPERR = 0.004435790357293357 / Error on Instrumental zeropoint [mag]
L1COLORU= 'r-i ' / Color used for calibration
L1COLOR = -0.06118346190329538 / Color coefficient [mag]
L1COLERR= 0.011493083854079267 / Error on color coefficient [mag]
RLEVEL = 91 / Reduction level
PIPEVER = '1.37.1 ' / Pipeline version
COMMENT Original key: "END"
COMMENT
COMMENT --Start of Astrometry.net WCS solution--
COMMENT --Put in by the new-wcs program--
COMMENT
WCSAXES = 2 / no comment
CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions
CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions
EQUINOX = 2000.0 / Equatorial coordinates definition (yr)
LONPOLE = 180.0 / no comment
LATPOLE = 0.0 / no comment
CRVAL1 = 11.8892205819 / RA of reference point
CRVAL2 = -25.2798482467 / DEC of reference point
CRPIX1 = 4788.5 / X reference pixel
CRPIX2 = 3194.5 / Y reference pixel
CUNIT1 = 'deg ' / X pixel scale units
CUNIT2 = 'deg ' / Y pixel scale units
CD1_1 = -0.000206152453046 / Transformation matrix
CD1_2 = -3.13255119401E-07 / no comment
CD2_1 = -2.51101602218E-07 / no comment
CD2_2 = 0.000206362961413 / no comment
IMAGEW = 9576 / Image width, in pixels.
IMAGEH = 6388 / Image height, in pixels.
A_ORDER = 2 / Polynomial order, axis 1
A_0_0 = 0 / no comment
A_0_1 = 0 / no comment
A_0_2 = -2.62438138735E-08 / no comment
A_1_0 = 0 / no comment
A_1_1 = 6.71936807544E-08 / no comment
A_2_0 = -1.0456736947E-07 / no comment
B_ORDER = 2 / Polynomial order, axis 2
B_0_0 = 0 / no comment
B_0_1 = 0 / no comment
B_0_2 = 7.76741621259E-08 / no comment
B_1_0 = 0 / no comment
B_1_1 = -7.19586277758E-08 / no comment
B_2_0 = 1.71885077232E-08 / no comment
AP_ORDER= 2 / Inv polynomial order, axis 1
AP_0_0 = 7.2517750489E-07 / no comment
AP_0_1 = -2.57209190486E-07 / no comment
AP_0_2 = 2.62437810089E-08 / no comment
AP_1_0 = 4.07092419528E-07 / no comment
AP_1_1 = -6.71936368757E-08 / no comment
AP_2_0 = 1.04567316103E-07 / no comment
BP_ORDER= 2 / Inv polynomial order, axis 2
BP_0_0 = -3.30472640038E-07 / no comment
BP_0_1 = 2.35617698673E-07 / no comment
BP_0_2 = -7.76741303685E-08 / no comment
BP_1_0 = -1.52744373838E-07 / no comment
BP_1_1 = 7.19586037988E-08 / no comment
BP_2_0 = -1.71884990112E-08 / no comment
HISTORY Created by the Astrometry.net suite.
HISTORY For more details, see http://astrometry.net.
HISTORY Git URL https://github.com/dstndstn/astrometry.net
HISTORY Git revision 0.93
HISTORY Git date Mon_Dec_19_16:41:15_2022_-0500
HISTORY This is a WCS header was created by Astrometry.net.
COMMENT Original WCS key: "DATE"
_ATE = '2026-09-08T07:44:49' / Date this file was created.
COMMENT -- onefield solver parameters: --
COMMENT Index(0):
COMMENT /usr/share/astrometry/index-tycho2-12.littleendian.fits
COMMENT Index(1):
COMMENT /usr/share/astrometry/index-tycho2-11.littleendian.fits
COMMENT Index(2):
COMMENT /usr/share/astrometry/index-tycho2-10.littleendian.fits
COMMENT Index(3):
COMMENT /usr/share/astrometry/index-tycho2-09.littleendian.fits
COMMENT Index(4):
COMMENT /usr/share/astrometry/index-tycho2-08.littleendian.fits
COMMENT Index(5):
COMMENT /usr/share/astrometry/index-tycho2-07.littleendian.fits
COMMENT Index(6): /usr/share/astrometry/index-2mass-12.fits
COMMENT Index(7): /usr/share/astrometry/index-2mass-11.fits
COMMENT Index(8): /usr/share/astrometry/index-2mass-10.fits
COMMENT Index(9): /usr/share/astrometry/index-2mass-09.fits
COMMENT Index(10): /usr/share/astrometry/index-2mass-08.fits
COMMENT Index(11): /usr/share/astrometry/index-2mass-07-04.fits
COMMENT Index(12): /usr/share/astrometry/index-2mass-06-04.fits
COMMENT Index(13): /usr/share/astrometry/index-2mass-05-04.fits
COMMENT Index(14): /usr/share/astrometry/index-2mass-04-16.fits
COMMENT Index(15): /usr/share/astrometry/index-2mass-03-16.fits
COMMENT Field name:
COMMENT /home/httpd/nso/goobs/indata/tmp/878721tmp36301C001t004.ax
COMMENT y
COMMENT Field scale lower: 0.735429 arcsec/pixel
COMMENT Field scale upper: 0.750286 arcsec/pixel
COMMENT X col name: X
COMMENT Y col name: Y
COMMENT Start obj: 0
COMMENT End obj: 10
COMMENT Solved_in: (null)
COMMENT Solved_out:
COMMENT /home/httpd/nso/goobs/indata/tmp/878721tmp36301C001t004.so
COMMENT lved
COMMENT Parity: 2
COMMENT Codetol: 0.01
COMMENT Verify pixels: 1 pix
COMMENT Maxquads: 0
COMMENT Maxmatches: 0
COMMENT Cpu limit: 300.000000 s
COMMENT Time limit: 0 s
COMMENT Total time limit: 0 s
COMMENT Total CPU limit: 300.000000 s
COMMENT Tweak: yes
COMMENT Tweak AB order: 2
COMMENT Tweak ABP order: 2
COMMENT --
COMMENT -- properties of the matching quad: --
COMMENT index id: 4203
COMMENT index healpix: 16
COMMENT index hpnside: 2
COMMENT log odds: 8002.92
COMMENT odds: inf
COMMENT quadno: 0
COMMENT stars: 0,0,0,0
COMMENT field: 0,0,0,0
COMMENT code error: 0
COMMENT nmatch: 2346
COMMENT nconflict: 118
COMMENT nfield: 6036
COMMENT nindex: 2680
COMMENT scale: 0.742528 arcsec/pix
COMMENT parity: 0
COMMENT quads tried: 0
COMMENT quads matched: 0
COMMENT quads verified: 0
COMMENT objs tried: 1
COMMENT cpu time: 5.3942
COMMENT --
COMMENT
COMMENT --End of Astrometry.net WCS--
COMMENT --(Put in by the new-wcs program)--
COMMENT
OBJECT = 'NGC253'
NSOOBSR = 'JeiJoLand'
NSOFILT = 'rsdss'
NSODIST = 10.5493
NSODISTU= 'million light years'
NSOPSCL = 37.8468
NSOPSCLU= 'light years'
END Banda 3 · gp · cabecera FITS
SIMPLE = T / Fits standard
BITPIX = 16 / Bits per pixel
NAXIS = 2 / Number of axes
NAXIS1 = 9576 / Axis length
NAXIS2 = 6388 / Axis length
EXTEND = F / File may contain extensions
BSCALE = 1.000000E0 / REAL = TAPE*BSCALE + BZERO
BZERO = 3.276800E4 /
ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator
DATE = '2026-09-08T07:42:43' / Date FITS file was generated
IRAF-TLM= '2026-09-08T07:42:40' / Time of last modification
ZDITHER0= 6751 / dithering offset when quantizing floats
DATADICV= 'LCOGT-DIC.FITS-0.11.0' / Version number of the data dictionary
HDRVER = 'LCOGT-HDR-1.4.0' / Version number of the headers
SITEID = 'elp ' / ID code of the Observatory site
SITE = 'LCOGT node at McDonald Observatory' / Site of the Observatory
ENCID = 'aqwa ' / ID code of the Enclosure
ENCLOSUR= 'Aqawan-01' / Building containing Telescope
TELID = '0m4a ' / ID code of the Telescope
TELESCOP= '0m4-14 ' / The Name of the Telescope
LATITUDE= 30.6800415 / [deg North] Telescope Latitude
LONGITUD= -104.0150660 / [deg East] Telescope Longitude
HEIGHT = 2030.000 / [m] Altitude of Telescope above sea level
OBSGEO-X= -1330017.310 / [m] Cartesian X co-ord of telescope (WGS84)
OBSGEO-Y= -5328438.752 / [m] Cartesian Y co-ord of telescope (WGS84)
OBSGEO-Z= 3236472.371 / [m] Cartesian Z co-ord of telescope (WGS84)
OBSTYPE = 'EXPOSE ' / Observation type
FRAMENUM= 249 / Running frame number
MOLTYPE = 'EXPOSE ' / Molecule type
MOLNUM = 150 / Molecule number
MOLFRNUM= 1 / Exposure number within molecule
FRMTOTAL= 1 / Total number of exposures within molecule
ORIGNAME= 'elp0m414-sq31-20260907-0249-e00.fits' / Fname written by ICS
OBSTELEM= 'N/A ' / Link to observation telemetry
TIMESYS = 'UTC ' / Time system used
DATE-OBS= '2026-09-08T07:33:41.348' / [UTC] Start date and time of the observati
DAY-OBS = '20260907' / [UTC] Date at start of local observing night
UTSTART = '07:33:41.348' / [UTC] The start time of the observation
UTSTOP = '07:37:02.627' / [UTC] The finish time of the observation
MJD-OBS = 61291.3150546 / [UTC days] Start date/time (Modified Julian Dat
EXPTIME = 201.279 / [s] Actual exposure length
REQTIME = 201.2790000 / [s] Requested exposure length
SUBREAD = F / Is this a stacked (subread) image
NSUBREAD= 1 / Number of stacked (subread) images
SEXPTIME= 201.2790000 / [s] Subread exposure length
FILTER1 = 'gp ' / The first filter wheel filter type
FILTERI1= 'SDSS-GP-110' / The first filter wheel filter id
FILTER2 = 'NOTPRESENT' / The second filter wheel filter type
FILTERI2= 'NOTPRESENT' / The second filter wheel filter id
FILTER3 = 'NOTPRESENT' / The third filter wheel filter type
FILTERI3= 'NOTPRESENT' / The third filter wheel filter id
FILTER = 'gp ' / Filter used
FWID = 'p4fw50-32' / Filter Wheel ID
INSTRUME= 'sq31 ' / Instrument used
INSSTATE= 'OKAY ' / The instrument status
ICSVER = 'PR-1200@0xbc75897' / Version number of the ICS software
CONFMODE= 'full_frame' / Camera mode configuration
CONFNAME= 'N/A ' / The instrument configuration used
DETECTOR= 'sony ' / Detector type
DETECTID= 'qhy600m ' / Detector serial number
GAIN = 1.0 / [electrons/count] Pixel gain
RDNOISE = 3.1000000 / [electrons/pixel] Read noise
DARKCURR= 0.0100000 / [electrons/pixel/s @ 200K] Dark current
SATURATE= 46200.0 / [ADU] Saturation level
MAXLIN = 46200.0 / [ADU] Non-linearity level
RDSPEED = 10.0000000 / [kpix/s] Readout speed used
DETSIZE = '[1:9600,1:6422]' / [pixel] Detector size
AMPNAME = 'default ' / Amplifier name
CCDSEC = '[1:9600,1:6422]' / [pixel] Region of CCD read
CCDSUM = '1 1 ' / CCD on-chip summing/binning
BIASSEC = '[24:9600,6390:6419]' / [binned pixel] Section of bias/overscan data
DATASEC = '[1:9576,1:6388]' / [binned pixel] Data section
TRIMSEC = '[1:9576,1:6388]' / [binned pixel] Section of useful data
ROI = 'UNKNOWN ' / [binned pixel] Region of interest or MULTIPLE
DETSEC = '[1:9576,1:6388]' / [binned pixel] Section of useful data
CCDXPIXE= 0.0000038 / [m] Size of pixels, in X
CCDYPIXE= 0.0000038 / [m] Size of pixels, in Y
PIXSCALE= 0.7400000 / [arcsec/pixel] Nominal pixel scale on sky
CCDSTEMP= 5.0000000 / [deg C] CCD required temperature
CCDATEMP= 5.0000000 / [deg C] CCD actual temperature
CCDSESIG= 'N/A ' / [mK] CCD temp control servo error signal
DRKTCOEF= 0.0550000 / [1/deg C] Dark-scaling temperature coefficient
TELMODE = 'AUTOMATIC' / Telescope mode
TAGID = 'UNSPECIFIED' / Time Allocation Group ID
USERID = 'schoolsobs3' / User ID
PROPID = 'TSO2026B-001' / Proposal ID
GROUPID = '36301C000t004' / Group ID
OBSID = 'UNSPECIFIED' / Observation ID
OBSNOTE = 'UNSPECIFIED' / Observation Note
SCHEDNAM= 'POND ' / Name of scheduler in control
TRACKNUM= '2686507 ' / Request DB tracking number
REQNUM = '4382709 ' / Request DB request number
MOLUID = '1062372660' / Molecule unique ID
BLKTYPE = 'POND ' / Group type
BLKUID = '833632828' / Group unique ID
BLKSDATE= '2026-09-08T07:26:21' / [UTC] Block start date
BLKEDATE= '2026-09-08T07:42:10' / [UTC] Block end date
BLKNOMEX= 949.0000000 / [s] Block nominal exec time
BLKMNPH = 0.7000000 / [(0-1)] Maximum lunar phase required
BLKMNDST= 60.0000000 / [deg] Minimum lunar distance required
BLKSEECO= 'N/A ' / Minimum seeing required
BLKTRNCO= 'N/A ' / Minimum transparency required
BLKAIRCO= '2.0 ' / Maximum airmass required
SCHEDSEE= 3.4074592 / [arcsec] Estimated seeing when group scheduled
SCHEDTRN= 'N/A ' / [(0-1)] Estimated transparency when group sched
TRIGGER = 'N/A ' / External trigger ID
MOSAIC = 'UNSPECIFIED' / Mosaic Pattern Description
DITHER = 'UNSPECIFIED' / Dither Pattern Description
OBRECIPE= 'N/A ' / Observing Recipes required/used
PCRECIPE= 'N/A ' / Processing Recipes required/used
PPRECIPE= 'N/A ' / Post-Processing Recipes required/used
RA = '00:47:33.3279' / [HH:MM:SS.sss] RA where telescope is pointing
DEC = '-25:16:49.109' / [sDD:MM:SS.ss] Dec where telescope is pointing
RADESYS = 'ICRS ' / [[FK5,ICRS]] Fundamental coord. system of the o
LST = '23:47:09.89' / [HH:MM:SS.ss] LST at start of current observati
CAT-RA = '00:47:33.120' / [HH:MM:SS.sss] Catalog RA of the object
CAT-DEC = '-25:17:17.16' / [sDD:MM:SS.ss] Catalog Dec of the object
CAT-EPOC= 2000.0000000 / [Year] Catalog epoch of the coordinates
OFST-RA = '00:47:33.120' / [HH:MM:SS.sss] Catalog RA plus pointing offsets
OFST-DEC= '-25:17:17.16' / [sDD:MM:SS.ss] Catalog Dec plus pointing offset
TPT-RA = '00:48:03.400' / [HH:MM:SS.sss] Telescope demand RA
TPT-DEC = '-24:54:41.06' / [sDD:MM:SS.ss] Telescope demand Dec
SRCTYPE = 'EXTRASOLAR' / Source type
PM-RA = 0.0000000 / [sec/year] Proper motion in RA of the object
PM-DEC = 0.0000000 / [arcsec/year] Proper motion in Dec of the objec
PARALLAX= 0.0000000 / [arcsec] Parallax of the object
RADVEL = 0.0000000 / [km/s] Radial velocity of the object
RATRACK = 0.0000000 / [arcsec/s] Non-sidereal tracking in RA
DECTRACK= 0.0000000 / [arcsec/s] Non-sidereal tracking in Dec
TRACFRAC= 1.0000000 / Fraction of ephemeris rate applied
TELSTATE= 'OKAY ' / Current telescope status
ENGSTATE= 'UNKNOWN ' / Engineering override state
TCSSTATE= 'OKAY ' / TCS state
TCSVER = '3.7 ' / Version number of the TCS software
TPNTMODL= '20260908070834' / Version number of the pointing model
UT1-UTC = -0.0004300 / [s] UT1-UTC
POLARMOX= 0.2039000 / [arcsec] Polar motion X
POLARMOY= 0.3348000 / [arcsec] Polar motion Y
EOPSRC = 'IERS BULL. A 2026/09/03' / Source of the EOP Values
ROLLERDR= 0.0000000 / [rad] Driven roller encoder angle
ROLLERND= 0.0000000 / [rad] Non-driven roller encoder angle
AZDMD = 163.4487720 / [deg] Azimuth axis demand
AZIMUTH = 163.4487756 / [deg] Azimuth axis position
AZSTAT = 'OKAY ' / Azimuth axis state
ALTDMD = 32.2591126 / [deg] Altitude axis demand
ALTITUDE= 32.2589121 / [deg] Altitude axis position
ALTSTAT = 'OKAY ' / Altitude axis state
ROTTYPE = 'NONE ' / Selected image derotator
ROTMODE = 'FIXED ' / Rotator mode
ROTDMD = 0.0000000 / [deg] Rotator axis demand
ROTANGLE= 'N/A ' / [deg] Rotator axis position
ROTSKYPA= -0.1600000 / [deg] Rotator position angle
ROTSTAT = 'OFF ' / Rotator axis state
AIRMASS = 1.8640893 / Effective mean airmass
AMSTART = 1.8692305 / Airmass at start of observation
AMEND = 1.8589482 / Airmass at end of observation
ENC1STAT= 'OPEN ' / Enclosure shutter 1 state
ENC2STAT= 'OPEN ' / Enclosure shutter 2 state
ENCAZ = 358.9223134 / [deg] Enclosure azimuth
ENCWLIGT= 'OFF ' / Enclosure white lights state
ENCRLIGT= 'OFF ' / Enclosure red lights state
FSTATION= 'NASMYTH DRIVE SIDE' / Focal station, e.g. Cassegrain, Nasmyth WS
FOLDSTAT= 'N/A ' / Fold mirror state
FOLDPORT= '0 ' / Fold mirror port
FOLDPOSN= 'N/A, N/A' / [{mm,deg}] Fold mirror position (r, theta)
M1COVER = 'STOWED ' / M1 mirror cover state
M1HRTMN = 'UNKNOWN ' / M1 Hartmann screen state
FOCDMD = 0.0000000 / [mm] Demanded focus position in focal plane
FOCPOSN = -0.0000516 / [mm] Actual focus position in focal plane
FOCTELZP= 5.8336660 / [mm] Telescope default focus
FOCINOFF= 0.0000000 / [mm] Instrument focus offset
FOCTOFF = -0.0097720 / [mm] Thermal correction value
FOCZOFF = 0.0328286 / [mm] Zenith compression correction
FOCAFOFF= -0.0840000 / [mm] Autofocus offset in focal plane
FOCOBOFF= 0.0000000 / [mm] Observer focus offset/defocus in focal pla
FOCFLOFF= -1.0000000 / [mm] Filter focus offset in focal plane
FOCSTAT = 'HALTED ' / Focus state
M2PITCH = 0.0000000 / [arcsec] M2 tilt about vertex in pitch directio
M2ROLL = 0.0000000 / [arcsec] M2 tilt about vertex in roll direction
AUXROLL = 0.0000000 / [arcsec] Auxiliary pointing corrections in roll
AUXPITCH= 0.0000000 / [arcsec] Auxiliary pointing corrections in pitc
COMMENT Original key: "CTYPE1"
_TYPE1 = 'RA---TAN' / Type of WCS Projection
COMMENT Original key: "CTYPE2"
_TYPE2 = 'DEC--TAN' / Type of WCS Projection
COMMENT Original key: "CRPIX1"
_RPIX1 = 4788.5 / [pixel] Coordinate of reference point (axis 1)
COMMENT Original key: "CRPIX2"
_RPIX2 = 3194.5 / [pixel] Coordinate of reference point (axis 2)
COMMENT Original key: "CRVAL1"
_RVAL1 = 11.8888663533 / [deg] RA at the reference pixel
COMMENT Original key: "CRVAL2"
_RVAL2 = -25.2803082163 / [deg] Dec at the reference pixel
COMMENT Original key: "CUNIT1"
_UNIT1 = 'deg ' / Units of RA
COMMENT Original key: "CUNIT2"
_UNIT2 = 'deg ' / Units of Dec
COMMENT Original key: "CD1_1"
_D1_1 = -0.000206321118586 / WCS CD transformation matrix
COMMENT Original key: "CD1_2"
_D1_2 = -3.95126464567E-07 / WCS CD transformation matrix
COMMENT Original key: "CD2_1"
_D2_1 = -3.95126464567E-07 / WCS CD transformation matrix
COMMENT Original key: "CD2_2"
_D2_2 = 0.000206321118586 / WCS CD transformation matrix
WMSSTATE= 'OKAY ' / WMS system state
WMSHUMID= 71.0000000 / [%] Current percentage humidity
WMSTEMP = 19.6000004 / [deg C] External temperature
WMSPRES = 803.4007499 / [mbar] Atmospheric pressure
WINDSPEE= 15.4439999 / [km/h] Windspeed
WINDDIR = 136.0000000 / [deg E of N] Wind direction
WMSRAIN = 'CLEAR ' / Rain alert
WMSMOIST= 264.4666748 / [mV] Moisture level
WMSDEWPT= 14.1999998 / [deg C] Dewpoint
WMSCLOUD= -19.5880000 / [deg C] Boltwood sky temperature
WMSSKYBR= 22.0000000 / [mag/arcsec^2] Measured sky brightness
SKYMAG = 22.0000000 / [mag/arcsec^2] Computed (expected) sky brightne
TUBETEMP= 16.7400000 / [deg C] Temperature of the telescope tube
M1TEMP = 'UNKNOWN ' / [deg C] Primary mirror temperature
FOCTEMP = 16.7450000 / [deg C] Focus temperature
ISSTEMP = 'UNKNOWN ' / [deg C] ISS temperature
REFPRES = 803.4007499 / [mbar] Pressure used in refraction calculation
REFTEMP = 19.6000004 / [deg C] Temperature used in refraction calculat
REFHUMID= 71.0000000 / [%] Humidity used in refraction calculation
AGSTATE = 'GUIDING_CLOSED_LOOP' / Autoguider software state
AGCAM = 'sq31 ' / Camera used for autoguiding
AGLCKFRC= 95.74 / [%] Fraction of time AG locked
AGMODE = 'ON ' / Autoguider mode
AGRA = 11.8879997 / [deg] RA of guide star
AGDEC = -25.2880990 / [deg] Dec of guide star
AGGMAG = 'UNKNOWN ' / [mag] Autoguider guide star mag
AGFWHM = 0.0000000 / [arcsec] Autoguider FWHM
AGNSRC = 0 / Number of potential guide stars
AGDX = 0.0000000 / [pixel] Autoguider correction in X
AGDY = 0.0000000 / [pixel] Autoguider correction in Y
AGMIRDMD= 'UNKNOWN ' / [mm] Autoguider mirror demand
AGMIRPOS= 'N/A, N/A' / Autoguider mirror position
AGMIRST = 'N/A ' / Autoguider mirror state
AGFOCDMD= 'UNKNOWN ' / [mm] Autoguider focus demand
AGFOCUS = 'UNKNOWN ' / [mm] Autoguider focus position
AGFOCOFF= 0.0000000 / [mm] Autoguider relative focus offset
AGFOCST = 'UNKNOWN ' / Autoguider focus state
AGFILTER= 'gp ' / Autoguider filter
AGFILTID= 'SDSS-GP-110' / Autoguider filter id
AGFILST = 'Enabled ' / Autoguider filter state
MOONSTAT= 'DOWN ' / [{UP, DOWN}] Moon position at obs start
MOONFRAC= 0.0964586 / [(0 - 1)] Lunar Illuminated Fraction
MOONDIST= 124.6767287 / [deg] Lunar distance from target
MOONALT = -24.3362922 / [deg] Lunar altitude
SUNDIST = 148.8420642 / [deg] Solar distance from target
SUNALT = -52.4504958 / [deg] Solar altitude
STACK = F / Image is part of a stack
L1PUBDAT= '2026-09-08T07:33:41.348000' / [UTC] Date the frame becomes public
L1IDMASK= 'elp0m411-sq31-20230605-bpm-full_frame.fits.fz' / ID of mask
L1IDRDN = 'elp0m411-sq31-20230530-readnoise-full_frame.fits.fz' / Readnoise map
SATFRAC = 1.75016869095816E-05 / Fraction of Pixels that are Saturated
L1STATOV= '1 ' / Status flag for overscan correction
OVERSCAN= 489.03631524786203 / Overscan value that was subtracted
OVERSCN1= '489.04 ' / Overscan value that was subtracted
BIASLVL = -0.1508728300159365 / Bias level that was removed after overscan
L1IDBIAS= 'elp0m414-sq31-20260907-bias-bin1x1.fits.fz' / ID of bias frame
L1STATBI= 1 / Status flag for bias frame correction
L1IDDARK= 'elp0m414-sq31-20260907-dark-bin1x1.fits.fz' / ID of dark frame
L1STATDA= 1 / Status flag for dark frame correction
DRKTSCAL= 1.0 / Temperature scaling factor applied to dark imag
L1IDFLAT= 'elp0m414-sq31-20260904-skyflat-bin1x1-gp.fits.fz' / ID of flat frame
L1STATFL= 1 / Status flag for flat field correction
L1MEAN = 77.0951369841389 / [counts] Sigma clipped mean of frame background
L1MEDIAN= 77.09204593913394 / [counts] Median of frame background
L1SIGMA = 0.5103194258451461 / [counts] Robust std dev of frame background
L1FWHM = 3.180423437161945 / [arcsec] Frame FWHM in arcsec
L1FWTM = 1.6589976444550252 / Ratio of FWHM to Full-Width Tenth Max
L1ELLIP = 0.13256585266830628 / Mean image ellipticity (1-B/A)
L1ELLIPA= 19.351114860506296 / [deg] PA of mean image ellipticity
OBSGEO-L= -104.01506600307602 / [deg] Longitude of telescope, East positive
OBSGEO-B= 30.680041446578734 / [deg] Latitude or telescope, North positive
OBSGEO-H= 2030.0002155144325 / [m] Height of telescope
WCSERR = 0 / Error status of WCS fit. 0 for no error
PNTOFST = 28.191825332656943 / [arcsec] offset of requested and solved center
L1ZP = 21.058946422244297 / Instrumental zeropoint [mag]
L1ZPERR = 0.005466854251743314 / Error on Instrumental zeropoint [mag]
L1COLORU= 'g-r ' / Color used for calibration
L1COLOR = -0.08998594980608535 / Color coefficient [mag]
L1COLERR= 0.008727372230840247 / Error on color coefficient [mag]
RLEVEL = 91 / Reduction level
PIPEVER = '1.37.1 ' / Pipeline version
COMMENT Original key: "END"
COMMENT
COMMENT --Start of Astrometry.net WCS solution--
COMMENT --Put in by the new-wcs program--
COMMENT
WCSAXES = 2 / no comment
CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions
CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions
EQUINOX = 2000.0 / Equatorial coordinates definition (yr)
LONPOLE = 180.0 / no comment
LATPOLE = 0.0 / no comment
CRVAL1 = 11.8888828015 / RA of reference point
CRVAL2 = -25.2797802573 / DEC of reference point
CRPIX1 = 4788.5 / X reference pixel
CRPIX2 = 3194.5 / Y reference pixel
CUNIT1 = 'deg ' / X pixel scale units
CUNIT2 = 'deg ' / Y pixel scale units
CD1_1 = -0.00020619344431 / Transformation matrix
CD1_2 = -3.00596013568E-07 / no comment
CD2_1 = -2.48360998221E-07 / no comment
CD2_2 = 0.000206391021939 / no comment
IMAGEW = 9576 / Image width, in pixels.
IMAGEH = 6388 / Image height, in pixels.
A_ORDER = 2 / Polynomial order, axis 1
A_0_0 = 0 / no comment
A_0_1 = 0 / no comment
A_0_2 = -6.86944636949E-08 / no comment
A_1_0 = 0 / no comment
A_1_1 = 6.11733845113E-08 / no comment
A_2_0 = -1.92758997779E-07 / no comment
B_ORDER = 2 / Polynomial order, axis 2
B_0_0 = 0 / no comment
B_0_1 = 0 / no comment
B_0_2 = 7.88471461104E-08 / no comment
B_1_0 = 0 / no comment
B_1_1 = -1.42738588982E-07 / no comment
B_2_0 = 1.9047156722E-08 / no comment
AP_ORDER= 2 / Inv polynomial order, axis 1
AP_0_0 = 3.43448264672E-06 / no comment
AP_0_1 = -4.79899982333E-07 / no comment
AP_0_2 = 6.86943309471E-08 / no comment
AP_1_0 = 1.30682768387E-06 / no comment
AP_1_1 = -6.11732749867E-08 / no comment
AP_2_0 = 1.92758766578E-07 / no comment
BP_ORDER= 2 / Inv polynomial order, axis 2
BP_0_0 = -1.14887325736E-06 / no comment
BP_0_1 = 5.80052342932E-07 / no comment
BP_0_2 = -7.88470101076E-08 / no comment
BP_1_0 = -3.11710443472E-07 / no comment
BP_1_1 = 1.42738445205E-07 / no comment
BP_2_0 = -1.90471331868E-08 / no comment
HISTORY Created by the Astrometry.net suite.
HISTORY For more details, see http://astrometry.net.
HISTORY Git URL https://github.com/dstndstn/astrometry.net
HISTORY Git revision 0.93
HISTORY Git date Mon_Dec_19_16:41:15_2022_-0500
HISTORY This is a WCS header was created by Astrometry.net.
COMMENT Original WCS key: "DATE"
_ATE = '2026-09-08T07:43:23' / Date this file was created.
COMMENT -- onefield solver parameters: --
COMMENT Index(0):
COMMENT /usr/share/astrometry/index-tycho2-12.littleendian.fits
COMMENT Index(1):
COMMENT /usr/share/astrometry/index-tycho2-11.littleendian.fits
COMMENT Index(2):
COMMENT /usr/share/astrometry/index-tycho2-10.littleendian.fits
COMMENT Index(3):
COMMENT /usr/share/astrometry/index-tycho2-09.littleendian.fits
COMMENT Index(4):
COMMENT /usr/share/astrometry/index-tycho2-08.littleendian.fits
COMMENT Index(5):
COMMENT /usr/share/astrometry/index-tycho2-07.littleendian.fits
COMMENT Index(6): /usr/share/astrometry/index-2mass-12.fits
COMMENT Index(7): /usr/share/astrometry/index-2mass-11.fits
COMMENT Index(8): /usr/share/astrometry/index-2mass-10.fits
COMMENT Index(9): /usr/share/astrometry/index-2mass-09.fits
COMMENT Index(10): /usr/share/astrometry/index-2mass-08.fits
COMMENT Index(11): /usr/share/astrometry/index-2mass-07-04.fits
COMMENT Index(12): /usr/share/astrometry/index-2mass-06-04.fits
COMMENT Index(13): /usr/share/astrometry/index-2mass-05-04.fits
COMMENT Index(14): /usr/share/astrometry/index-2mass-04-16.fits
COMMENT Index(15): /usr/share/astrometry/index-2mass-03-16.fits
COMMENT Field name:
COMMENT /home/httpd/nso/goobs/indata/tmp/876603tmp36301C002t004.ax
COMMENT y
COMMENT Field scale lower: 0.73533 arcsec/pixel
COMMENT Field scale upper: 0.750185 arcsec/pixel
COMMENT X col name: X
COMMENT Y col name: Y
COMMENT Start obj: 0
COMMENT End obj: 10
COMMENT Solved_in: (null)
COMMENT Solved_out:
COMMENT /home/httpd/nso/goobs/indata/tmp/876603tmp36301C002t004.so
COMMENT lved
COMMENT Parity: 2
COMMENT Codetol: 0.01
COMMENT Verify pixels: 1 pix
COMMENT Maxquads: 0
COMMENT Maxmatches: 0
COMMENT Cpu limit: 300.000000 s
COMMENT Time limit: 0 s
COMMENT Total time limit: 0 s
COMMENT Total CPU limit: 300.000000 s
COMMENT Tweak: yes
COMMENT Tweak AB order: 2
COMMENT Tweak ABP order: 2
COMMENT --
COMMENT -- properties of the matching quad: --
COMMENT index id: 4203
COMMENT index healpix: 16
COMMENT index hpnside: 2
COMMENT log odds: 6607.78
COMMENT odds: inf
COMMENT quadno: 0
COMMENT stars: 0,0,0,0
COMMENT field: 0,0,0,0
COMMENT code error: 0
COMMENT nmatch: 2127
COMMENT nconflict: 112
COMMENT nfield: 6157
COMMENT nindex: 2679
COMMENT scale: 0.742653 arcsec/pix
COMMENT parity: 0
COMMENT quads tried: 0
COMMENT quads matched: 0
COMMENT quads verified: 0
COMMENT objs tried: 1
COMMENT cpu time: 5.40339
COMMENT --
COMMENT
COMMENT --End of Astrometry.net WCS--
COMMENT --(Put in by the new-wcs program)--
COMMENT
OBJECT = 'NGC253'
NSOOBSR = 'JeiJoLand'
NSOFILT = 'gsdss'
NSODIST = 10.5493
NSODISTU= 'million light years'
NSOPSCL = 37.8468
NSOPSCLU= 'light years'
END Banda 4 · zs · cabecera FITS
SIMPLE = T / Fits standard
BITPIX = 16 / Bits per pixel
NAXIS = 2 / Number of axes
NAXIS1 = 9576 / Axis length
NAXIS2 = 6388 / Axis length
EXTEND = F / File may contain extensions
BSCALE = 1.000000E0 / REAL = TAPE*BSCALE + BZERO
BZERO = 3.276800E4 /
ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator
DATE = '2026-09-08T07:49:53' / Date FITS file was generated
IRAF-TLM= '2026-09-08T07:49:50' / Time of last modification
ZDITHER0= 813 / dithering offset when quantizing floats
DATADICV= 'LCOGT-DIC.FITS-0.11.0' / Version number of the data dictionary
HDRVER = 'LCOGT-HDR-1.4.0' / Version number of the headers
SITEID = 'elp ' / ID code of the Observatory site
SITE = 'LCOGT node at McDonald Observatory' / Site of the Observatory
ENCID = 'aqwa ' / ID code of the Enclosure
ENCLOSUR= 'Aqawan-01' / Building containing Telescope
TELID = '0m4a ' / ID code of the Telescope
TELESCOP= '0m4-14 ' / The Name of the Telescope
LATITUDE= 30.6800415 / [deg North] Telescope Latitude
LONGITUD= -104.0150660 / [deg East] Telescope Longitude
HEIGHT = 2030.000 / [m] Altitude of Telescope above sea level
OBSGEO-X= -1330017.310 / [m] Cartesian X co-ord of telescope (WGS84)
OBSGEO-Y= -5328438.752 / [m] Cartesian Y co-ord of telescope (WGS84)
OBSGEO-Z= 3236472.371 / [m] Cartesian Z co-ord of telescope (WGS84)
OBSTYPE = 'EXPOSE ' / Observation type
FRAMENUM= 250 / Running frame number
MOLTYPE = 'EXPOSE ' / Molecule type
MOLNUM = 151 / Molecule number
MOLFRNUM= 1 / Exposure number within molecule
FRMTOTAL= 1 / Total number of exposures within molecule
ORIGNAME= 'elp0m414-sq31-20260907-0250-e00.fits' / Fname written by ICS
OBSTELEM= 'N/A ' / Link to observation telemetry
TIMESYS = 'UTC ' / Time system used
DATE-OBS= '2026-09-08T07:37:16.448' / [UTC] Start date and time of the observati
DAY-OBS = '20260907' / [UTC] Date at start of local observing night
UTSTART = '07:37:16.447' / [UTC] The start time of the observation
UTSTOP = '07:40:37.726' / [UTC] The finish time of the observation
MJD-OBS = 61291.3175467 / [UTC days] Start date/time (Modified Julian Dat
EXPTIME = 201.279 / [s] Actual exposure length
REQTIME = 201.2790000 / [s] Requested exposure length
SUBREAD = F / Is this a stacked (subread) image
NSUBREAD= 1 / Number of stacked (subread) images
SEXPTIME= 201.2790000 / [s] Subread exposure length
FILTER1 = 'zs ' / The first filter wheel filter type
FILTERI1= 'PSTR-ZS-131' / The first filter wheel filter id
FILTER2 = 'NOTPRESENT' / The second filter wheel filter type
FILTERI2= 'NOTPRESENT' / The second filter wheel filter id
FILTER3 = 'NOTPRESENT' / The third filter wheel filter type
FILTERI3= 'NOTPRESENT' / The third filter wheel filter id
FILTER = 'zs ' / Filter used
FWID = 'p4fw50-32' / Filter Wheel ID
INSTRUME= 'sq31 ' / Instrument used
INSSTATE= 'OKAY ' / The instrument status
ICSVER = 'PR-1200@0xbc75897' / Version number of the ICS software
CONFMODE= 'full_frame' / Camera mode configuration
CONFNAME= 'N/A ' / The instrument configuration used
DETECTOR= 'sony ' / Detector type
DETECTID= 'qhy600m ' / Detector serial number
GAIN = 1.0 / [electrons/count] Pixel gain
RDNOISE = 3.1000000 / [electrons/pixel] Read noise
DARKCURR= 0.0100000 / [electrons/pixel/s @ 200K] Dark current
SATURATE= 46200.0 / [ADU] Saturation level
MAXLIN = 46200.0 / [ADU] Non-linearity level
RDSPEED = 10.0000000 / [kpix/s] Readout speed used
DETSIZE = '[1:9600,1:6422]' / [pixel] Detector size
AMPNAME = 'default ' / Amplifier name
CCDSEC = '[1:9600,1:6422]' / [pixel] Region of CCD read
CCDSUM = '1 1 ' / CCD on-chip summing/binning
BIASSEC = '[24:9600,6390:6419]' / [binned pixel] Section of bias/overscan data
DATASEC = '[1:9576,1:6388]' / [binned pixel] Data section
TRIMSEC = '[1:9576,1:6388]' / [binned pixel] Section of useful data
ROI = 'UNKNOWN ' / [binned pixel] Region of interest or MULTIPLE
DETSEC = '[1:9576,1:6388]' / [binned pixel] Section of useful data
CCDXPIXE= 0.0000038 / [m] Size of pixels, in X
CCDYPIXE= 0.0000038 / [m] Size of pixels, in Y
PIXSCALE= 0.7400000 / [arcsec/pixel] Nominal pixel scale on sky
CCDSTEMP= 5.0000000 / [deg C] CCD required temperature
CCDATEMP= 5.0000000 / [deg C] CCD actual temperature
CCDSESIG= 'N/A ' / [mK] CCD temp control servo error signal
DRKTCOEF= 0.0550000 / [1/deg C] Dark-scaling temperature coefficient
TELMODE = 'AUTOMATIC' / Telescope mode
TAGID = 'UNSPECIFIED' / Time Allocation Group ID
USERID = 'schoolsobs3' / User ID
PROPID = 'TSO2026B-001' / Proposal ID
GROUPID = '36301C000t004' / Group ID
OBSID = 'UNSPECIFIED' / Observation ID
OBSNOTE = 'UNSPECIFIED' / Observation Note
SCHEDNAM= 'POND ' / Name of scheduler in control
TRACKNUM= '2686507 ' / Request DB tracking number
REQNUM = '4382709 ' / Request DB request number
MOLUID = '1062372660' / Molecule unique ID
BLKTYPE = 'POND ' / Group type
BLKUID = '833632828' / Group unique ID
BLKSDATE= '2026-09-08T07:26:21' / [UTC] Block start date
BLKEDATE= '2026-09-08T07:42:10' / [UTC] Block end date
BLKNOMEX= 949.0000000 / [s] Block nominal exec time
BLKMNPH = 0.7000000 / [(0-1)] Maximum lunar phase required
BLKMNDST= 60.0000000 / [deg] Minimum lunar distance required
BLKSEECO= 'N/A ' / Minimum seeing required
BLKTRNCO= 'N/A ' / Minimum transparency required
BLKAIRCO= '2.0 ' / Maximum airmass required
SCHEDSEE= 3.4074592 / [arcsec] Estimated seeing when group scheduled
SCHEDTRN= 'N/A ' / [(0-1)] Estimated transparency when group sched
TRIGGER = 'N/A ' / External trigger ID
MOSAIC = 'UNSPECIFIED' / Mosaic Pattern Description
DITHER = 'UNSPECIFIED' / Dither Pattern Description
OBRECIPE= 'N/A ' / Observing Recipes required/used
PCRECIPE= 'N/A ' / Processing Recipes required/used
PPRECIPE= 'N/A ' / Post-Processing Recipes required/used
RA = '00:47:33.4603' / [HH:MM:SS.sss] RA where telescope is pointing
DEC = '-25:16:50.151' / [sDD:MM:SS.ss] Dec where telescope is pointing
RADESYS = 'ICRS ' / [[FK5,ICRS]] Fundamental coord. system of the o
LST = '23:50:45.77' / [HH:MM:SS.ss] LST at start of current observati
CAT-RA = '00:47:33.120' / [HH:MM:SS.sss] Catalog RA of the object
CAT-DEC = '-25:17:17.16' / [sDD:MM:SS.ss] Catalog Dec of the object
CAT-EPOC= 2000.0000000 / [Year] Catalog epoch of the coordinates
OFST-RA = '00:47:33.120' / [HH:MM:SS.sss] Catalog RA plus pointing offsets
OFST-DEC= '-25:17:17.16' / [sDD:MM:SS.ss] Catalog Dec plus pointing offset
TPT-RA = '00:48:03.528' / [HH:MM:SS.sss] Telescope demand RA
TPT-DEC = '-24:54:39.82' / [sDD:MM:SS.ss] Telescope demand Dec
SRCTYPE = 'EXTRASOLAR' / Source type
PM-RA = 0.0000000 / [sec/year] Proper motion in RA of the object
PM-DEC = 0.0000000 / [arcsec/year] Proper motion in Dec of the objec
PARALLAX= 0.0000000 / [arcsec] Parallax of the object
RADVEL = 0.0000000 / [km/s] Radial velocity of the object
RATRACK = 0.0000000 / [arcsec/s] Non-sidereal tracking in RA
DECTRACK= 0.0000000 / [arcsec/s] Non-sidereal tracking in Dec
TRACFRAC= 1.0000000 / Fraction of ephemeris rate applied
TELSTATE= 'OKAY ' / Current telescope status
ENGSTATE= 'UNKNOWN ' / Engineering override state
TCSSTATE= 'OKAY ' / TCS state
TCSVER = '3.7 ' / Version number of the TCS software
TPNTMODL= '20260908070834' / Version number of the pointing model
UT1-UTC = -0.0004300 / [s] UT1-UTC
POLARMOX= 0.2039000 / [arcsec] Polar motion X
POLARMOY= 0.3348000 / [arcsec] Polar motion Y
EOPSRC = 'IERS BULL. A 2026/09/03' / Source of the EOP Values
ROLLERDR= 0.0000000 / [rad] Driven roller encoder angle
ROLLERND= 0.0000000 / [rad] Non-driven roller encoder angle
AZDMD = 164.3788542 / [deg] Azimuth axis demand
AZIMUTH = 164.3788622 / [deg] Azimuth axis position
AZSTAT = 'OKAY ' / Azimuth axis state
ALTDMD = 32.4734683 / [deg] Altitude axis demand
ALTITUDE= 32.4738185 / [deg] Altitude axis position
ALTSTAT = 'OKAY ' / Altitude axis state
ROTTYPE = 'NONE ' / Selected image derotator
ROTMODE = 'FIXED ' / Rotator mode
ROTDMD = 0.0000000 / [deg] Rotator axis demand
ROTANGLE= 'N/A ' / [deg] Rotator axis position
ROTSKYPA= -0.1600000 / [deg] Rotator position angle
ROTSTAT = 'OFF ' / Rotator axis state
AIRMASS = 1.8534981 / Effective mean airmass
AMSTART = 1.8582709 / Airmass at start of observation
AMEND = 1.8487253 / Airmass at end of observation
ENC1STAT= 'OPEN ' / Enclosure shutter 1 state
ENC2STAT= 'OPEN ' / Enclosure shutter 2 state
ENCAZ = 357.4092292 / [deg] Enclosure azimuth
ENCWLIGT= 'OFF ' / Enclosure white lights state
ENCRLIGT= 'OFF ' / Enclosure red lights state
FSTATION= 'NASMYTH DRIVE SIDE' / Focal station, e.g. Cassegrain, Nasmyth WS
FOLDSTAT= 'N/A ' / Fold mirror state
FOLDPORT= '0 ' / Fold mirror port
FOLDPOSN= 'N/A, N/A' / [{mm,deg}] Fold mirror position (r, theta)
M1COVER = 'STOWED ' / M1 mirror cover state
M1HRTMN = 'UNKNOWN ' / M1 Hartmann screen state
FOCDMD = 0.0000000 / [mm] Demanded focus position in focal plane
FOCPOSN = -0.0000516 / [mm] Actual focus position in focal plane
FOCTELZP= 5.8336660 / [mm] Telescope default focus
FOCINOFF= 0.0000000 / [mm] Instrument focus offset
FOCTOFF = -0.0094360 / [mm] Thermal correction value
FOCZOFF = 0.0326108 / [mm] Zenith compression correction
FOCAFOFF= -0.0840000 / [mm] Autofocus offset in focal plane
FOCOBOFF= 0.0000000 / [mm] Observer focus offset/defocus in focal pla
FOCFLOFF= -1.0000000 / [mm] Filter focus offset in focal plane
FOCSTAT = 'HALTED ' / Focus state
M2PITCH = 0.0000000 / [arcsec] M2 tilt about vertex in pitch directio
M2ROLL = 0.0000000 / [arcsec] M2 tilt about vertex in roll direction
AUXROLL = 0.0000000 / [arcsec] Auxiliary pointing corrections in roll
AUXPITCH= 0.0000000 / [arcsec] Auxiliary pointing corrections in pitc
COMMENT Original key: "CTYPE1"
_TYPE1 = 'RA---TAN' / Type of WCS Projection
COMMENT Original key: "CTYPE2"
_TYPE2 = 'DEC--TAN' / Type of WCS Projection
COMMENT Original key: "CRPIX1"
_RPIX1 = 4788.5 / [pixel] Coordinate of reference point (axis 1)
COMMENT Original key: "CRPIX2"
_RPIX2 = 3194.5 / [pixel] Coordinate of reference point (axis 2)
COMMENT Original key: "CRVAL1"
_RVAL1 = 11.8894180303 / [deg] RA at the reference pixel
COMMENT Original key: "CRVAL2"
_RVAL2 = -25.2805975529 / [deg] Dec at the reference pixel
COMMENT Original key: "CUNIT1"
_UNIT1 = 'deg ' / Units of RA
COMMENT Original key: "CUNIT2"
_UNIT2 = 'deg ' / Units of Dec
COMMENT Original key: "CD1_1"
_D1_1 = -0.000205959189881 / WCS CD transformation matrix
COMMENT Original key: "CD1_2"
_D1_2 = -3.12841009894E-07 / WCS CD transformation matrix
COMMENT Original key: "CD2_1"
_D2_1 = -3.12841009894E-07 / WCS CD transformation matrix
COMMENT Original key: "CD2_2"
_D2_2 = 0.000205959189881 / WCS CD transformation matrix
WMSSTATE= 'OKAY ' / WMS system state
WMSHUMID= 70.9000015 / [%] Current percentage humidity
WMSTEMP = 19.6000004 / [deg C] External temperature
WMSPRES = 803.4007499 / [mbar] Atmospheric pressure
WINDSPEE= 15.4800007 / [km/h] Windspeed
WINDDIR = 134.0000000 / [deg E of N] Wind direction
WMSRAIN = 'CLEAR ' / Rain alert
WMSMOIST= 264.4666748 / [mV] Moisture level
WMSDEWPT= 14.1999998 / [deg C] Dewpoint
WMSCLOUD= -19.6080000 / [deg C] Boltwood sky temperature
WMSSKYBR= 22.0000000 / [mag/arcsec^2] Measured sky brightness
SKYMAG = 22.0000000 / [mag/arcsec^2] Computed (expected) sky brightne
TUBETEMP= 16.6850000 / [deg C] Temperature of the telescope tube
M1TEMP = 'UNKNOWN ' / [deg C] Primary mirror temperature
FOCTEMP = 16.6850000 / [deg C] Focus temperature
ISSTEMP = 'UNKNOWN ' / [deg C] ISS temperature
REFPRES = 803.4007499 / [mbar] Pressure used in refraction calculation
REFTEMP = 19.6000004 / [deg C] Temperature used in refraction calculat
REFHUMID= 70.9000015 / [%] Humidity used in refraction calculation
AGSTATE = 'GUIDING_CLOSED_LOOP' / Autoguider software state
AGCAM = 'sq31 ' / Camera used for autoguiding
AGLCKFRC= 100.00 / [%] Fraction of time AG locked
AGMODE = 'ON ' / Autoguider mode
AGRA = 11.8879997 / [deg] RA of guide star
AGDEC = -25.2880990 / [deg] Dec of guide star
AGGMAG = 'UNKNOWN ' / [mag] Autoguider guide star mag
AGFWHM = 0.0000000 / [arcsec] Autoguider FWHM
AGNSRC = 0 / Number of potential guide stars
AGDX = 0.0000000 / [pixel] Autoguider correction in X
AGDY = 0.0000000 / [pixel] Autoguider correction in Y
AGMIRDMD= 'UNKNOWN ' / [mm] Autoguider mirror demand
AGMIRPOS= 'N/A, N/A' / Autoguider mirror position
AGMIRST = 'N/A ' / Autoguider mirror state
AGFOCDMD= 'UNKNOWN ' / [mm] Autoguider focus demand
AGFOCUS = 'UNKNOWN ' / [mm] Autoguider focus position
AGFOCOFF= 0.0000000 / [mm] Autoguider relative focus offset
AGFOCST = 'UNKNOWN ' / Autoguider focus state
AGFILTER= 'zs ' / Autoguider filter
AGFILTID= 'PSTR-ZS-131' / Autoguider filter id
AGFILST = 'Enabled ' / Autoguider filter state
MOONSTAT= 'DOWN ' / [{UP, DOWN}] Moon position at obs start
MOONFRAC= 0.0962524 / [(0 - 1)] Lunar Illuminated Fraction
MOONDIST= 124.7136653 / [deg] Lunar distance from target
MOONALT = -23.8187325 / [deg] Lunar altitude
SUNDIST = 148.8578981 / [deg] Solar distance from target
SUNALT = -52.2297106 / [deg] Solar altitude
STACK = F / Image is part of a stack
L1PUBDAT= '2026-09-08T07:37:16.448000' / [UTC] Date the frame becomes public
L1IDMASK= 'elp0m411-sq31-20230605-bpm-full_frame.fits.fz' / ID of mask
L1IDRDN = 'elp0m411-sq31-20230530-readnoise-full_frame.fits.fz' / Readnoise map
SATFRAC = 6.13126751790719E-06 / Fraction of Pixels that are Saturated
L1STATOV= '1 ' / Status flag for overscan correction
OVERSCAN= 489.0607190497815 / Overscan value that was subtracted
OVERSCN1= '489.06 ' / Overscan value that was subtracted
BIASLVL = -0.1508728300159365 / Bias level that was removed after overscan
L1IDBIAS= 'elp0m414-sq31-20260907-bias-bin1x1.fits.fz' / ID of bias frame
L1STATBI= 1 / Status flag for bias frame correction
L1IDDARK= 'elp0m414-sq31-20260907-dark-bin1x1.fits.fz' / ID of dark frame
L1STATDA= 1 / Status flag for dark frame correction
DRKTSCAL= 1.0 / Temperature scaling factor applied to dark imag
L1IDFLAT= 'elp0m414-sq31-20260906-skyflat-bin1x1-zs.fits.fz' / ID of flat frame
L1STATFL= 1 / Status flag for flat field correction
L1MEAN = 80.50411721962512 / [counts] Sigma clipped mean of frame background
L1MEDIAN= 80.58557263789919 / [counts] Median of frame background
L1SIGMA = 1.0707655865907668 / [counts] Robust std dev of frame background
L1FWHM = 2.7586940693539574 / [arcsec] Frame FWHM in arcsec
L1FWTM = 1.774647233132796 / Ratio of FWHM to Full-Width Tenth Max
L1ELLIP = 0.10564230421095287 / Mean image ellipticity (1-B/A)
L1ELLIPA= 23.308067506027832 / [deg] PA of mean image ellipticity
OBSGEO-L= -104.01506600307602 / [deg] Longitude of telescope, East positive
OBSGEO-B= 30.680041446578734 / [deg] Latitude or telescope, North positive
OBSGEO-H= 2030.0002155144325 / [m] Height of telescope
WCSERR = 0 / Error status of WCS fit. 0 for no error
PNTOFST = 27.40039983417982 / [arcsec] offset of requested and solved center
RLEVEL = 91 / Reduction level
PIPEVER = '1.37.1 ' / Pipeline version
COMMENT Original key: "END"
COMMENT
COMMENT --Start of Astrometry.net WCS solution--
COMMENT --Put in by the new-wcs program--
COMMENT
WCSAXES = 2 / no comment
CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions
CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions
EQUINOX = 2000.0 / Equatorial coordinates definition (yr)
LONPOLE = 180.0 / no comment
LATPOLE = 0.0 / no comment
CRVAL1 = 11.8894897704 / RA of reference point
CRVAL2 = -25.2803925492 / DEC of reference point
CRPIX1 = 4788.5 / X reference pixel
CRPIX2 = 3194.5 / Y reference pixel
CUNIT1 = 'deg ' / X pixel scale units
CUNIT2 = 'deg ' / Y pixel scale units
CD1_1 = -0.0002060234944 / Transformation matrix
CD1_2 = -2.22277427182E-07 / no comment
CD2_1 = -2.99655325681E-07 / no comment
CD2_2 = 0.000206237380337 / no comment
IMAGEW = 9576 / Image width, in pixels.
IMAGEH = 6388 / Image height, in pixels.
A_ORDER = 2 / Polynomial order, axis 1
A_0_0 = 0 / no comment
A_0_1 = 0 / no comment
A_0_2 = 1.00385395746E-07 / no comment
A_1_0 = 0 / no comment
A_1_1 = -3.64178108776E-08 / no comment
A_2_0 = 3.36251392753E-08 / no comment
B_ORDER = 2 / Polynomial order, axis 2
B_0_0 = 0 / no comment
B_0_1 = 0 / no comment
B_0_2 = 1.02559449085E-07 / no comment
B_1_0 = 0 / no comment
B_1_1 = -4.16360728461E-08 / no comment
B_2_0 = 3.29979075442E-08 / no comment
AP_ORDER= 2 / Inv polynomial order, axis 1
AP_0_0 = -1.41844381574E-08 / no comment
AP_0_1 = 1.47138887362E-07 / no comment
AP_0_2 = -1.00385400302E-07 / no comment
AP_1_0 = 9.5424217461E-10 / no comment
AP_1_1 = 3.64178084604E-08 / no comment
AP_2_0 = -3.36251447969E-08 / no comment
BP_ORDER= 2 / Inv polynomial order, axis 2
BP_0_0 = -1.42870561011E-08 / no comment
BP_0_1 = 1.48516632577E-07 / no comment
BP_0_2 = -1.02559452696E-07 / no comment
BP_1_0 = -4.56360892618E-09 / no comment
BP_1_1 = 4.16360707951E-08 / no comment
BP_2_0 = -3.29979132773E-08 / no comment
HISTORY Created by the Astrometry.net suite.
HISTORY For more details, see http://astrometry.net.
HISTORY Git URL https://github.com/dstndstn/astrometry.net
HISTORY Git revision 0.93
HISTORY Git date Mon_Dec_19_16:41:15_2022_-0500
HISTORY This is a WCS header was created by Astrometry.net.
COMMENT Original WCS key: "DATE"
_ATE = '2026-09-08T07:50:27' / Date this file was created.
COMMENT -- onefield solver parameters: --
COMMENT Index(0):
COMMENT /usr/share/astrometry/index-tycho2-12.littleendian.fits
COMMENT Index(1):
COMMENT /usr/share/astrometry/index-tycho2-11.littleendian.fits
COMMENT Index(2):
COMMENT /usr/share/astrometry/index-tycho2-10.littleendian.fits
COMMENT Index(3):
COMMENT /usr/share/astrometry/index-tycho2-09.littleendian.fits
COMMENT Index(4):
COMMENT /usr/share/astrometry/index-tycho2-08.littleendian.fits
COMMENT Index(5):
COMMENT /usr/share/astrometry/index-tycho2-07.littleendian.fits
COMMENT Index(6): /usr/share/astrometry/index-2mass-12.fits
COMMENT Index(7): /usr/share/astrometry/index-2mass-11.fits
COMMENT Index(8): /usr/share/astrometry/index-2mass-10.fits
COMMENT Index(9): /usr/share/astrometry/index-2mass-09.fits
COMMENT Index(10): /usr/share/astrometry/index-2mass-08.fits
COMMENT Index(11): /usr/share/astrometry/index-2mass-07-04.fits
COMMENT Index(12): /usr/share/astrometry/index-2mass-06-04.fits
COMMENT Index(13): /usr/share/astrometry/index-2mass-05-04.fits
COMMENT Index(14): /usr/share/astrometry/index-2mass-04-16.fits
COMMENT Index(15): /usr/share/astrometry/index-2mass-03-16.fits
COMMENT Field name:
COMMENT /home/httpd/nso/goobs/indata/tmp/887512tmp36301C003t004.ax
COMMENT y
COMMENT Field scale lower: 0.734039 arcsec/pixel
COMMENT Field scale upper: 0.748868 arcsec/pixel
COMMENT X col name: X
COMMENT Y col name: Y
COMMENT Start obj: 0
COMMENT End obj: 10
COMMENT Solved_in: (null)
COMMENT Solved_out:
COMMENT /home/httpd/nso/goobs/indata/tmp/887512tmp36301C003t004.so
COMMENT lved
COMMENT Parity: 2
COMMENT Codetol: 0.01
COMMENT Verify pixels: 1 pix
COMMENT Maxquads: 0
COMMENT Maxmatches: 0
COMMENT Cpu limit: 300.000000 s
COMMENT Time limit: 0 s
COMMENT Total time limit: 0 s
COMMENT Total CPU limit: 300.000000 s
COMMENT Tweak: yes
COMMENT Tweak AB order: 2
COMMENT Tweak ABP order: 2
COMMENT --
COMMENT -- properties of the matching quad: --
COMMENT index id: 4208
COMMENT index healpix: -1
COMMENT index hpnside: 0
COMMENT log odds: 176.518
COMMENT odds: 4.57738e+76
COMMENT quadno: 0
COMMENT stars: 0,0,0,0
COMMENT field: 0,0,0,0
COMMENT code error: 0
COMMENT nmatch: 97
COMMENT nconflict: 5
COMMENT nfield: 4380
COMMENT nindex: 98
COMMENT scale: 0.74207 arcsec/pix
COMMENT parity: 0
COMMENT quads tried: 0
COMMENT quads matched: 0
COMMENT quads verified: 0
COMMENT objs tried: 1
COMMENT cpu time: 2.20869
COMMENT --
COMMENT
COMMENT --End of Astrometry.net WCS--
COMMENT --(Put in by the new-wcs program)--
COMMENT
OBJECT = 'NGC253'
NSOOBSR = 'JeiJoLand'
NSOFILT = 'zspans'
NSODIST = 10.5493
NSODISTU= 'million light years'
NSOPSCL = 37.8468
NSOPSCLU= 'light years'
END ¿La conservarías en el Observatorio? Tu voto ayuda a decidir qué observaciones permanecen.