Koen Van der Auwera M33_ALTAIR60EDF_ZWO585MC_25x120s_AFF_kvda

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3840 / length of data axis 1

NAXIS2 = 2160 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

PROGRAM = 'Siril 1.4.0-beta4' / Software that created this HDU

FILENAME= 'M33_Light_007.fits'

DATE = '2025-10-07T14:22:12' / UTC date that FITS file was created

DATE-OBS= '2025-09-26T03:18:33.122000' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light Frame' / Type of image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

EXPTIME = 120. / [s] Exposure time duration

TELESCOP= 'ALTAIR 60ED 285@F\4.8' / Telescope used to acquire this image

FOCALLEN= 282.427 / [mm] Focal length

CENTALT = 59.27759 / [deg] Altitude of telescope

CENTAZ = 256.0784 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 2.9 / [um] Pixel X axis size

YPIXSZ = 2.9 / [um] Pixel Y axis size

INSTRUME= 'ZWO CCD ASI585MC Pro' / Instrument name

CCD-TEMP= -4. / [degC] CCD temperature

GAIN = 252 / Sensor gain

OFFSET = 10 / Sensor gain offset

FOCPOS = 4374 / [step] Focuser position

FOCTEMP = 12.39 / [degC] Focuser temperature

STACKCNT= 24 / Stack frames

LIVETIME= 2880. / [s] Exposure time after deadtime correction

EXPSTART= 2460944.63047238 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460944.66653491 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M33 ' / Name of the object of interest

AIRMASS = 1.162987 / Airmass at frame center (Gueymard 1993)

SITELAT = 44.21667 / [deg] Observation site latitude

SITELONG= 3.733333 / [deg] Observation site longitude

OBJCTRA = '01 33 51.346' / [H M S] Image center Right Ascension

OBJCTDEC= '+30 43 54.340' / [D M S] Image center Declination

RA = 23.4639414522693 / [deg] Image center Right Ascension

DEC = 30.7317611951257 / [deg] Image center Declination

CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions

CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000. / Equatorial equinox

CRPIX1 = 1920.5 / Axis1 reference pixel

CRPIX2 = 1080.5 / Axis2 reference pixel

CRVAL1 = 23.4639414522693 / [deg] Axis1 reference value

CRVAL2 = 30.7317611951257 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000588343541611957 / [deg] X pixel size

CDELT2 = 0.000588298038962793 / [deg] Y pixel size

PC1_1 = -0.99980948754387 / Linear transformation matrix (1, 1)

PC1_2 = 0.0195189297161632 / Linear transformation matrix (1, 2)

PC2_1 = -0.0192970232107256 / Linear transformation matrix (2, 1)

PC2_2 = -0.999813795111472 / Linear transformation matrix (2, 2)

A_ORDER = 3 / SIP polynomial degree, axis 1, pixel-to-sky

A_0_0 = 0.

A_1_0 = 0.

A_0_1 = 0.

A_2_0 = 1.07633023399987E-07

A_1_1 = -1.03472319180805E-07

A_0_2 = 1.32930877148794E-08

A_3_0 = -6.57151224594346E-10

A_2_1 = 2.19309594585955E-12

A_1_2 = -6.159783259075E-10

A_0_3 = 7.93413632800894E-11

B_ORDER = 3 / SIP polynomial degree, axis 2, pixel-to-sky

B_0_0 = 0.

B_1_0 = 0.

B_0_1 = 0.

B_2_0 = -2.15550446034261E-08

B_1_1 = 9.83105344833731E-08

B_0_2 = -1.28414967164704E-07

B_3_0 = 6.34817643575336E-12

B_2_1 = -6.34857530992924E-10

B_1_2 = 1.09957798042837E-11

B_0_3 = -7.13488957249123E-10

AP_ORDER= 3 / SIP polynomial degree, axis 1, sky-to-pixel

AP_0_0 = 0.0010251321176434

AP_1_0 = -8.76095863777682E-06

AP_0_1 = -2.24111701317955E-07

AP_2_0 = -1.09126412217438E-07

AP_1_1 = 1.04476756931874E-07

AP_0_2 = -1.44075117066647E-08

AP_3_0 = 6.64463016878538E-10

AP_2_1 = -2.27804775793203E-12

AP_1_2 = 6.24575281634439E-10

AP_0_3 = -7.94670122482519E-11

BP_ORDER= 3 / SIP polynomial degree, axis 2, sky-to-pixel

BP_0_0 = -8.86207801563109E-05

BP_1_0 = -2.42201345358436E-07

BP_0_1 = -5.93827281658577E-06

BP_2_0 = 2.17884611100473E-08

BP_1_1 = -9.93412857448403E-08

BP_0_2 = 1.28982123758204E-07

BP_3_0 = -6.37600494261096E-12

BP_2_1 = 6.41773348315693E-10

BP_1_2 = -1.05777688734352E-11

BP_0_3 = 7.19818562269301E-10

PLTSOLVD= T / Siril internal solver

HISTORY Background extraction (Correction: Subtraction)

HISTORY Plate Solve

HISTORY Photometric CC (algorithm: PCC)

HISTORY Photometric CC (algorithm: PCC)

HISTORY Saturation enhancement (amount=0.45)

HISTORY SCNR (type=average neutral, amount=1.00, preserve=true)

HISTORY GHS pivot: 0.000, amount: 1.54, local: 0.00 [0.00 1.00]

HISTORY GHS pivot: 0.000, amount: 2.88, local: 0.00 [0.00 1.00]

HISTORY GHS pivot: 0.000, amount: 1.76, local: 3.26 [0.00 1.00]

HISTORY GHS LINEAR BP: 0.04

HISTORY GHS pivot: 0.195, amount: 1.82, local: 0.00 [0.00 1.00]

HISTORY GHS LINEAR BP: 0.01

HISTORY GHS pivot: 0.000, amount: 1.65, local: 0.00 [0.00 0.73]

HISTORY GHS LINEAR BP: 0.01

HISTORY GHS SAT pivot: 0.233, amount: 3.70, local: 0.00 [0.00 1.00]

HISTORY GHS LINEAR BP: 0.01

HISTORY Background neutralization

FRAME = 'Light ' / Frame Type

APTDIA = 6.000E+01 / Telescope diameter (mm)

SCALE = 2.099193E+00 / arcsecs per pixel

RADECSYS= 'FK5 ' / RADECSYS

SECPIX1 = 2.0991930515E+00 / SECPIX1

SECPIX2 = 2.0991930515E+00 / SECPIX2

COMMENT Generated by INDI

WB_R = 5.500E+01 / White Balance - Red

WB_B = 7.500E+01 / White Balance - Blue

END

Done