SIMPLE  =                    T  / FITS STANDARD                                 BITPIX  =                  -32  / FITS BITS/PIXEL (FLOATING POINT)              NAXIS   =                    2  / NUMBER OF AXES                                NAXIS1  =                  900  / X AXIS NO. PIX                                NAXIS2  =                  900  / 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 13:07:03                HISTORY 1-3 pixel sized dust and emulsion pits removed by Laplacian filter      HISTORY Derived from above by CAFITIMAGE on 2006-09-14 at 17:48:56              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= '1965-01-11'          / YEAR-MO-DA                                    TAVG-UT =           18.3166676  / AVERAGE TIME, U.T.                            LAMBDA  =         3933.6818848  / WAVELENGTH (ANGSTROMS)                        OBS_B0  =            -4.261613  / SUN TILT                                      OBS_CR  =            1489.7043  / CARRINGTON ROTATION                           OBS_L0  =             106.4428  / LONGITUDE OF THE CENTRAL MERIDIAN             XSCALE  =              2.77481  / ARCSEC PER X PIXEL                            YSCALE  =              2.77481  / ARCSEC PER Y PIXEL                            SCALPIX1=  Infinity             / X PIXELS PER INCH                             SCALPIX2=  Infinity             / Y PIXELS PER INCH                             CRPIX1  =          428.9910889  / Ref point1.                                   CRPIX2  =          471.6054993  / Ref point2.                                   CDELT1  =           0.00284381  / Solar Scale Axis 1.                           CDELT2  =           0.00282507  / Solar Scale Axis 2.                           RX-RY   =          -2.33333325  / Radius x minus Radius y.                      GRADXP  =         325.22485352  / Average Slope X plus.                         GRADXM  =         301.18710327  / Average Slope X minus.                        GRADYP  =         219.86250305  / Average Slope Y plus.                         GRADYM  =         319.08749390  / Average Slope Y minus.                        SCSLOPXP=          52.87500000  / Scattered Light Slope X plus.                 SCSLOPXM=          53.43750000  / Scattered Light Slope X minus.                SCSLOPYP=          51.37500000  / Scattered Light Slope Y plus.                 SCSLOPYM=          77.62500000  / Scattered Light Slope Y minus.                YEAR    =                 1965  / Year                                          MONTH   =                    1  / Month                                         DAY     =                   11  / Day                                           IMAGE_NO=                   15  / Image_No                                      SCANID  =         '20050920-1'  / ScanId                                        PLATE_NO=              'CB665'  / plate_no                                      PLTYPECD=                    3  / PlateTypeCode                                 OBSTYPE =              'K2-SN'  / ObsType                                       TIME    =           '10:19:00'  / time                                          IMAGQUAL=                    2  / Image_Qual                                    LGBOOKPG=        '650101_0113'  / Logbook_Page                                  CORANGLE=                104.4  / Correction_angle                              LGCOMMNT= 'Cirrus and contrails'/ LogComments                                   TGCOMMNT=                'NIL'  / TagComments                                   EXTRES  =                    1  / ExtRes                                        EXTQUAL =   0.9946737246491272  / ExtQual                                       FILENAME= 'K19650111-15-20050920-1'/ FileName                                   IMAGWDTH=                 3757  / ImageWidth                                    IMAGLNGT=                 3757  / ImageLength                                   EXSUBSAM=                    1  / ExtSubSample                                  SCRESUNI=                    2  / ScanResUnit                                   SCANXRES=     849.903564453125  / ScanXres                                      SCANYRES=    849.7374267578125  / ScanYres                                      POSINSCN=                    1  / PosInScan                                     HORPOSNM=                    1  / HorPosNum                                     HORPOS  =                  'A'  / HorPos                                        PLXOFFST=                    0  / PlateXoffset                                  PLYOFFST=                    0  / PlateYoffset                                  IMXOFFST=                  515  / ImageXoffset                                  IMYOFFST=                 -184  / ImageYoffset                                  BACKGRND=    0.865482001820764  / Bgmean                                        BKGSTDEV=   0.1405273665549363  / Bgstddev                                      LGDTDATE= '10/13/2005 10:45:01'/ LogDataEntryDate                               LGSERIAL=                  NIL  / LogSerial                                     TGDTDATE= '9/27/2005 10:28:36'/ TagDataEntryDate                                TGSERIAL=                12505  / TagSerial                                     EXFILLOC=           '/1965/1/'  / ExtFileLoc                                    SCFILLOC=       '/2005/09/20/'  / ScanFileLoc                                   SCFRAME =                    3  / ScanFrame                                     EXTDATE = 'Wed Oct 19 12:18:23 2005'/ ExtDate                                   SERIAL  =                   31  / Serial                                        NPIXDUST=                67496  / Number of dust and pit pixels replaced.       RADIUS_X=               351.64  / X-direction Radius                            RADIUS_Y=               353.97  / Y-direction Radius                            AVE_INTS=        21867.5488281  / Average Intensity Value                       AVE_IRMS=          244.2976074  / Ave. RMS Intensity Variation over 5x5 Arrays  SUNEAR_F=            1.0165182  / Sun-Earth Distance Factor                     RADSCORE=                    3  / Radius Solution Demerits, < 6 is good         COMMENT Minimum and maximum allowed fit values:                                 DRKMN_1 =             2329.787  / MINIMUM VALUE FOR OFF-IMAGE SIDES.            DRKMX_1 =             4129.622  / MAXIMUM VALUE FOR OFF-IMAGE SIDES.            DRKMN_2 =             2369.783  / MINIMUM VALUE FOR OFF-IMAGE TOP & BOTTOM.     DRKMX_2 =             7269.334  / MAXIMUM VALUE FOR OFF-IMAGE TOP & BOTTOM.     DRKMN_3 =            -2378.913  / MINIMUM VALUE FOR IMAGE.                      DRKMX_3 =             1611.492  / 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 = 0.49232537972482E+01  / Background                                    COFB_02 =-0.56402105935520E-04  / Background                                    COFB_03 = 0.75638670806857E-07  / Background                                    COFB_04 = 0.32969095106303E-02  / Background                                    COFB_05 =-0.66935537439333E-02  / Background                                    COFB_06 =-0.22874775349026E-04  / Background                                    COFB_07 = 0.33316860881323E-04  / Background                                    COFB_08 = 0.27792142979395E-07  / Background                                    COFB_09 =-0.38760146529015E-07  / Background                                    COFB_10 =-0.97453773946873E-06  / Background                                    COFB_11 =-0.17770844087230E-04  / Background                                    COFB_12 = 0.22687781967670E-08  / Background                                    COFB_13 = 0.33643808548133E-07  / Background                                    COFB_14 =-0.14171770406126E-08  / Background                                    COFB_15 = 0.88653967392583E-09  / Background                                    COMMENT Image fit coefficients:                                                 COFA_01 = 0.58601157456075E+01  / Image                                         COFA_02 =-0.14959545190604E+01  / Image                                         COFA_03 =-0.49154734332265E-01  / Image                                         COFA_04 = 0.23779215062362E+00  / Image                                         COFA_05 =-0.34619336794974E+00  / Image                                         COFA_06 =-0.12850669426000E+01  / Image                                         COFA_07 = 0.63864740525312E+00  / Image                                         COFA_08 = 0.67312068638603E+00  / Image                                         COFA_09 =-0.32549894275608E+00  / Image                                         COFA_10 =-0.17440475629931E+00  / Image                                         COFA_11 = 0.83101020629438E+00  / Image                                         COFA_12 = 0.82172771990009E-01  / Image                                         COFA_13 =-0.50803578393264E+00  / Image                                         COFA_14 = 0.85985731756820E-02  / Image                                         COFA_15 =-0.12152919535404E-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   =           0.03879680  / H & D calibration parameter                   GAMMA   =           1.90011239  / H & D calibration parameter                   YMIN    =           0.09349664  / H & D calibration parameter                   END