File:NGC 4904 hst 08599 814.png

BITPIX = 8 / Bits per pixel NAXIS = 2 / number of array dimensions NAXIS1 = 2000 NAXIS2 = 2000 PCOUNT = 0 / number of parameters GCOUNT = 1 / number of groups CRVAL1 = 195.2348908186111 / right ascension of reference pixel (deg) CRVAL2 = -0.02544230083333333 / declination of reference pixel (deg) CRPIX1 = 1000.0 / x-coordinate of reference pixel CRPIX2 = 1000.0 / y-coordinate of reference pixel CD1_1 = -2.777777777777778E-05 / partial of the right ascension w.r.t. x CD1_2 = 0.0 / partial of the right ascension w.r.t. y CD2_1 = 0.0 / partial of the declination w.r.t. x CD2_2 = 2.777777777777778E-05 / partial of the declination w.r.t. y DATAMIN = -1469.104 / minimum value of the data DATAMAX = 2635.109 / maximum value of the data VAFACTOR= 1.0 / velocity aberration plate scale factor MIR_REVR= T / is the image mirror reversed? ORIENTAT= 0.0 / orientation of the image (deg) FILLCNT = 0 / number of segments containing fill ERRCNT = 0 / number of segments containing errors FPKTTIME= 51737.84789899999 / time of the first packet (Modified Julian Date) LPKTTIME= 51737.848067 / time of the last packet (Modified Julian Date) CTYPE1 = 'RA---TAN' / first coordinate type CTYPE2 = 'DEC--TAN' / second coordinate type DETECTOR= 1 / CCD detector: PC 1, WFC 2-4 DEZERO = 296.6511 / mean bias level from EED extended register BIASEVEN= 296.663 / bias level for even-numbered columns BIASODD = 296.6393 / bias level for odd-numbered columns BIASEVNU= 0 / uncorrected bias level for even-numbered column BIASODDU= 0 / uncorrected bias level for odd-numbered columns GOODMIN = -5.357447 / minimum value of the "good" pixels GOODMAX = 1535.83 / maximum value of the "good" pixels DATAMEAN= 0.3440147 / mean value of the "good" pixels GPIXELS = 554136 / number of "good" pixels (DQF = 0) SOFTERRS= 0 / number of "soft error" pixels (DQF = 1) CALIBDEF= 82450 / number of "calibration defect" pixels (DQF = 2) STATICD = 0 / number of "static defect" pixels (DQF = 4) ATODSAT = 0 / number of "AtoD saturated" pixels (DQF = 8) DATALOST= 0 / number of "data lost" pixels (DQF = 16) BADPIXEL= 0 / number of "generic bad" pixels (DQF = 32) OVERLAP = 0 / number of "image overlap" pixels (DQF = 64) PHOTMODE= 'WFPC2,1,A2D15,F814W,,CAL ' / Photometry mode PHOTFLAM= 3.562050035739814E-19 / Inverse Sensitivity PHOTZPT = -21.1 / Zero point PHOTPLAM= 7995.943 / Pivot wavelength PHOTBW = 646.1171 / RMS bandwidth of the filter MEDIAN = 0.1123588 / middle data value when good qual pixels sorted MEDSHADO= 1.423124 / median pixel value in shadow of pyramid edge HISTWIDE= 0.9396422 / width of the histogram SKEWNESS= 3.604682 / skewness of the histogram MEANC10 = 1.061818 / mean of a 10x10 region at center of chip MEANC25 = 1.083108 / mean of a 25x25 region at center of chip MEANC50 = 1.037958 / mean of a 50x50 region at center of chip MEANC100= 0.9587315 / mean of a 100x100 region at center of chip MEANC200= 0.7189565 / mean of a 200x200 region at center of chip MEANC300= 0.5822383 / mean of a 300x300 region at center of chip BACKGRND= 0.1897258 / estimated background level ZP_CORR = 0.01274354 / delta magnitude induced by UV contamination CTE_1E2 = 0 / expected delta mag from CTE for 100 e- PSF CTE_1E3 = 0 / expected delta mag from CTE for 1000 e- PSF CTE_1E4 = 0 / expected delta mag from CTE for 10000 e- PSF EXTNAME = 'SCI ' / extension name EXPNAME = 'u65w7801r' / 9 character exposure identifier EXTVER = 1 / extension version number INHERIT = T / inherit the primary header ROOTNAME= 'u65w7801r' / rootname of the observation set OCRVAL1 = 195.2454166667 / right ascension of reference pixel (deg) OCRVAL2 = -0.02805555555556 / declination of reference pixel (deg) OCRPIX2 = 424.5 / y-coordinate of reference pixel OCRPIX1 = 420 / x-coordinate of reference pixel ONAXIS2 = 800 ONAXIS1 = 800 OCD2_2 = -1.16277E-05 / partial of the declination w.r.t. y OCD2_1 = 4.96086E-06 / partial of the declination w.r.t. x OORIENTA= 156.9043957550202 / orientation of the image (deg) OCTYPE1 = 'RA---TAN' / first coordinate type OCD1_1 = 1.16331E-05 / partial of the right ascension w.r.t. x OCD1_2 = 4.95858E-06 / partial of the right ascension w.r.t. y OCTYPE2 = 'DEC--TAN' / second coordinate type WCSCDATE= '09:59:26 (13/12/2009)' / Time WCS keywords were copied. OCX10 = 2.277449942466774E-07 OCX11 = 0.045549 OCY10 = 0.04555355565583706 OCY11 = 5.196685210615396E-05 BUNIT = 'COUNTS/S' / Units of science product O_CRVAL1= 195.23514845 O_CRVAL2= -0.02571295 G_CRVAL1= 195.2358570641667 / GSC2 CRVAL1 G_CRVAL2= -0.02600488 / GSC2 CRVAL2 G_DRA = 2.551011 / GSC2 delta RA in arcsec G_DDEC = -1.050948 / GSC2 delta DEC in arcsec G_RMSRA = 0.217265 / GSC2 rms in arcsec G_RMSDEC= 1.395699 / GSC2 rms in arcsec G_NMATCH= 3 / GSC2 number of sources S_CRVAL1= 195.2348908186111 / SDSS CRVAL1 S_CRVAL2= -0.02544230083333333 / SDSS CRVAL2 S_DRA = -0.927473 / SDSS delta RA in arcsec S_DDEC = 0.974337 / SDSS delta DEC in arcsec S_RMSRA = 0.207122 / SDSS rms in arcsec S_RMSDEC= 0.182414 / SDSS rms in arcsec S_NMATCH= 22 / SDSS number of sources T_CRVAL1= 195.2349596380556 / 2MASS CRVAL1 T_CRVAL2= -0.02549513 / 2MASS CRVAL2 T_DRA = -0.679723 / 2MASS delta in arcsec T_DDEC = 0.784152 / 2MASS delta in arcsec T_RMSRA = 0.692551 / 2MASS rms in arcsec T_RMSDEC= 0.427348 / 2MASS rms in arcsec T_NMATCH= 3 / 2MASS number of sources