SIMPLE = T / FITS STANDARD BITPIX = -32 / FITS BITS/PIXEL (FLOATING POINT) NAXIS = 2 / NUMBER OF AXES NAXIS1 = 897 / X AXIS NO. PIX NAXIS2 = 897 / Y AXIS NO. PIX BLANK = 0.00000000 / ARRAY NULL VALUE (NATURAL 0.0 SET TO 1.E-10) HISTORY Created by tiftofits version 1 on 2005-10-20 at 13:43:50 HISTORY 1-3 pixel sized dust and emulsion pits removed by Laplacian filter HISTORY Derived from above by CAFITIMAGE on 2006-09-14 at 18:01:38 HISTORY Image: Vignetting function; (FVAL/CANCAK)/VIGMX where: HISTORY FVAL is the evaluated image fit, HISTORY CANCAK is the limb darkening function, HISTORY VIGMX is the maximum of FVAL/CANCAK . HISTORY Background: Off-image area is H & D'ed original data. BSCALE = 1.0000000 / REAL = DATA*BSCALE + BZERO BZERO = 0.0000000 / BUNIT = 'INTENSITY' / ARBITRARY UNITS ORIGIN = 'MT. WILSON' / TELESCOP= '60 FT' / OBJECT = 'SUN' / DATA-TYP= 'CA SPECTROHELIOGRM' / DATE-OBS= '1965-02-07' / YEAR-MO-DA TAVG-UT = 19.4833336 / AVERAGE TIME, U.T. LAMBDA = 3933.6818848 / WAVELENGTH (ANGSTROMS) OBS_B0 = -6.489064 / SUN TILT OBS_CR = 1490.6936 / CARRINGTON ROTATION OBS_L0 = 110.3101 / LONGITUDE OF THE CENTRAL MERIDIAN XSCALE = 2.80180 / ARCSEC PER X PIXEL YSCALE = 2.80180 / ARCSEC PER Y PIXEL SCALPIX1= Infinity / X PIXELS PER INCH SCALPIX2= Infinity / Y PIXELS PER INCH CRPIX1 = 434.0196228 / Ref point1. CRPIX2 = 409.9316101 / Ref point2. CDELT1 = 0.00288021 / Solar Scale Axis 1. CDELT2 = 0.00284336 / Solar Scale Axis 2. RX-RY = -4.50000000 / Radius x minus Radius y. GRADXP = 593.42517090 / Average Slope X plus. GRADXM = 554.64331055 / Average Slope X minus. GRADYP = 410.17926025 / Average Slope Y plus. GRADYM = 348.54089355 / Average Slope Y minus. SCSLOPXP= 42.06250000 / Scattered Light Slope X plus. SCSLOPXM= 70.25000000 / Scattered Light Slope X minus. SCSLOPYP= 85.37500000 / Scattered Light Slope Y plus. SCSLOPYM= 69.18750000 / Scattered Light Slope Y minus. YEAR = 1965 / Year MONTH = 2 / Month DAY = 7 / Day IMAGE_NO= 9 / Image_No SCANID = '20050930-8' / ScanId PLATE_NO= 'CB690' / plate_no PLTYPECD= 3 / PlateTypeCode OBSTYPE = 'K2-SN' / ObsType TIME = '11:29:00' / time IMAGQUAL= 2 / Image_Qual LGBOOKPG= '650207_0218' / Logbook_Page CORANGLE= 88 / Correction_angle LGCOMMNT= 'Clouds very near' / LogComments TGCOMMNT= 'NIL' / TagComments EXTRES = 1 / ExtRes EXTQUAL = 0.9752458201777385 / ExtQual FILENAME= 'K19650207-09-20050930-8'/ FileName IMAGWDTH= 3757 / ImageWidth IMAGLNGT= 3757 / ImageLength EXSUBSAM= 1 / ExtSubSample SCRESUNI= 2 / ScanResUnit SCANXRES= 849.7987060546875 / ScanXres SCANYRES= 849.923583984375 / ScanYres POSINSCN= 1 / PosInScan HORPOSNM= 1 / HorPosNum HORPOS = 'A' / HorPos PLXOFFST= 0 / PlateXoffset PLYOFFST= 0 / PlateYoffset IMXOFFST= 459 / ImageXoffset IMYOFFST= 152 / ImageYoffset BACKGRND= 0.8520310418968268 / Bgmean BKGSTDEV= 0.1203775227747719 / Bgstddev LGDTDATE= '10/13/2005 10:45:01'/ LogDataEntryDate LGSERIAL= NIL / LogSerial TGDTDATE= '10/12/2005 13:43:09'/ TagDataEntryDate TGSERIAL= 12778 / TagSerial EXFILLOC= '/1965/2/' / ExtFileLoc SCFILLOC= '/2005/09/30/' / ScanFileLoc SCFRAME = 3 / ScanFrame EXTDATE = 'Wed Oct 19 13:44:34 2005'/ ExtDate SERIAL = 87 / Serial NPIXDUST= 81123 / Number of dust and pit pixels replaced. RADIUS_X= 347.20 / X-direction Radius RADIUS_Y= 351.70 / Y-direction Radius AVE_INTS= 24747.0898438 / Average Intensity Value AVE_IRMS= 215.7801971 / Ave. RMS Intensity Variation over 5x5 Arrays SUNEAR_F= 1.0134467 / Sun-Earth Distance Factor RADSCORE= 1 / Radius Solution Demerits, < 6 is good COMMENT Minimum and maximum allowed fit values: DRKMN_1 = 3199.707 / MINIMUM VALUE FOR OFF-IMAGE SIDES. DRKMX_1 = 4729.567 / MAXIMUM VALUE FOR OFF-IMAGE SIDES. DRKMN_2 = 3209.706 / MINIMUM VALUE FOR OFF-IMAGE TOP & BOTTOM. DRKMX_2 = 8289.241 / MAXIMUM VALUE FOR OFF-IMAGE TOP & BOTTOM. DRKMN_3 = -2198.276 / MINIMUM VALUE FOR IMAGE. DRKMX_3 = 1565.150 / MAXIMUM VALUE FOR IMAGE. HISTORY Fitting function for the off-image area or the image. HISTORY C1 - C15 are fit coefficients, R is the center-to HISTORY limb angle at point for the image fit; for the background, HISTORY R is the radius at point. A is the angle-around-the-image, HISTORY starting at (CRPIX1+min(RADIUS_X,RADIUS_Y),CRPIX2). HISTORY V is the evaluated fit value. HISTORY V = C1 + C2*R**2 + C3*R**3 + C4*SIN(A)*R + C5*COS(A)*R + HISTORY C6*SIN(A)*R**2 + C7*COS(A)*R**2 + C8*SIN(A)*R**3 + HISTORY C9*COS(A)*R**3 + C10*SIN(2A)*R**2 + C11*COS(2A)*R**2 + HISTORY C12*SIN(2A)*R**3 + C13*COS(2A)*R**3 + C14*SIN(3A)*R**3 + HISTORY C15*COS(3A)*R**3 COMMENT Background fit coefficients: COFB_01 = 0.19169785204876E+01 / Background COFB_02 =-0.20547875620427E-04 / Background COFB_03 = 0.27169426208799E-07 / Background COFB_04 =-0.40703640604310E-02 / Background COFB_05 =-0.16608427820459E-02 / Background COFB_06 = 0.17111864461240E-04 / Background COFB_07 = 0.78512973851123E-05 / Background COFB_08 =-0.16387164566168E-07 / Background COFB_09 =-0.89411580637478E-08 / Background COFB_10 =-0.68875081883375E-06 / Background COFB_11 =-0.57131151603961E-05 / Background COFB_12 = 0.17310266543901E-08 / Background COFB_13 = 0.84012157138806E-08 / Background COFB_14 =-0.12094101056410E-08 / Background COFB_15 = 0.33727534981459E-09 / Background COMMENT Image fit coefficients: COFA_01 = 0.47665927961662E+01 / Image COFA_02 =-0.14878437045313E+01 / Image COFA_03 = 0.67771481072031E-01 / Image COFA_04 =-0.18499775549989E-02 / Image COFA_05 =-0.62073159448028E+00 / Image COFA_06 = 0.11629189610762E+01 / Image COFA_07 = 0.12476061100512E+01 / Image COFA_08 =-0.71128039903842E+00 / Image COFA_09 =-0.58938822697112E+00 / Image COFA_10 =-0.18370884191346E+00 / Image COFA_11 = 0.21402280267617E+00 / Image COFA_12 = 0.99645711760251E-01 / Image COFA_13 =-0.18591508758323E+00 / Image COFA_14 = 0.55390085883593E-01 / Image COFA_15 =-0.24739888768587E-01 / Image COMMENT Canonical limb darkening coefficients: COMMENT V = 1.0 - 0.2187436*X - 0.2759476*X**2 - 0.4847618*X**10 CANCAK_1= 1.0 / X = 1. - COS(RHO) CANCAK_2= 0.2187436 / RHO=Center-to-limb angle CANCAK_3= 0.2759476 / CANCAK_4= 0.4847618 / HISTORY Linearized according to the characteristic stepwedge curve, COMMENT V is the linearized intensity: COMMENT TIN = input scanner value, higher value = more light COMMENT TINL = TIN/(32767. - TIN) COMMENT TBIA = ABS(TINL - YMIN) COMMENT V = (TBIA/ALPHA)**(1./GAMMA) COMMENT If TINL-YMIN is negative, V = -V ALPHA = 0.13765030 / H & D calibration parameter GAMMA = 1.84011650 / H & D calibration parameter YMIN = 0.12280520 / H & D calibration parameter END >u(O>d>V-4>BO >>>*_J>*G>&>88>-Ɔ>/>+r>.>8=>=Q>*k!> _>BJ>7=\>+o>%y>@~q>.Z>#->#{>.G7>4>@ >;*>0
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