BITPIX = 8 / Bits per pixel NAXIS = 2 / Number of axes NAXIS1 = 5500 / Axis length NAXIS2 = 5500 / Axis length PCOUNT = 0 / No 'random' parameters GCOUNT = 1 / Only one group ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator EXTNAME = 'SCI ' / Extension name EXTVER = 1 / Extension version IRAF-TLM= '20:07:13 (03/02/2008)' / Time of last modification DATE = '2008-02-04T00:46:07' / Date FITS file was generated INHERIT = T / inherit the primary header EXPNAME = 'j9np05x8q ' / exposure identifier BUNIT = 'ELECTRONS/SEC' / brightness units CCDCHIP = '-999 ' / CCD chip (1 or 2) WCSAXES = 2 / number of World Coordinate System axes CRPIX1 = 2750.0 / x-coordinate of reference pixel CRPIX2 = 2750.0 / y-coordinate of reference pixel CRVAL1 = 177.42223804 / first axis value at reference pixel CRVAL2 = 48.423940185 / second axis value at reference pixel CTYPE1 = 'RA---TAN' / the coordinate type for the first axis CTYPE2 = 'DEC--TAN' / the coordinate type for the second axis CD1_1 = -1.388888888888889E-05 / partial of first axis coordinate w.r.t. x CD1_2 = 0.0 / partial of first axis coordinate w.r.t. y CD2_1 = 0.0 / partial of second axis coordinate w.r.t. x CD2_2 = 1.388888888888889E-05 / partial of second axis coordinate w.r.t. y LTV1 = 0.0000000E+00 / offset in X to subsection start LTV2 = 0.0000000E+00 / offset in Y to subsection start LTM1_1 = 1.0 / reciprocal of sampling rate in X LTM2_2 = 1.0 / reciprocal of sampling rate in Y ORIENTAT= 0.0 / position angle of image y axis (deg. e of n) RA_APER = 1.774185193322E+02 / RA of aperture reference position DEC_APER= 4.842535857991E+01 / Declination of aperture reference position PA_APER = -74.666 / Position Angle of reference aperture center (de VAFACTOR= 1.000067933973E+00 / velocity aberration plate scale factor CENTERA1= 2073 / subarray axis1 center pt in unbinned dect. pix CENTERA2= 1035 / subarray axis2 center pt in unbinned dect. pix SIZAXIS1= 4096 / subarray axis1 size in unbinned detector pixels SIZAXIS2= 2048 / subarray axis2 size in unbinned detector pixels BINAXIS1= 1 / axis1 data bin size in unbinned detector pixels BINAXIS2= 1 / axis2 data bin size in unbinned detector pixels PHOTMODE= 'ACS WFC1 F606W MJD#54086.4925' / observation con PHOTFLAM= 7.8624926E-20 / inverse sensitivity, ergs/cm2/Ang/electron PHOTZPT = -2.1100000E+01 / ST magnitude zero point PHOTPLAM= 5.9211182E+03 / Pivot wavelength (Angstroms) PHOTBW = 6.7224353E+02 / RMS bandwidth of filter plus detector NCOMBINE= 3 / number of image sets combined during CR rejecti FILLCNT = 0 / number of segments containing fill ERRCNT = 0 / number of segments containing errors PODPSFF = F / podps fill present (T/F) STDCFFF = F / ST DDF fill present (T/F) STDCFFP = 'x5569 ' / ST DDF fill pattern (hex) WFCMPRSD= F / was WFC data compressed? (T/F) CBLKSIZ = 0 / size of compression block in 2-byte words LOSTPIX = 0 / #pixels lost due to buffer overflow COMPTYP = 'None ' / compression type performed (Partial/Full/None) NGOODPIX= 7989891 / number of good pixels SDQFLAGS= 31743 / serious data quality flags GOODMIN = -5.3676025E+02 / minimum value of good pixels GOODMAX = 7.2058703E+04 / maximum value of good pixels GOODMEAN= 6.7877518E+01 / mean value of good pixels SOFTERRS= 0 / number of soft error pixels (DQF=1) SNRMIN = -1.9064358E+00 / minimum signal to noise of good pixels SNRMAX = 2.2024928E+02 / maximum signal to noise of good pixels SNRMEAN = 6.0961838E+00 / mean value of signal to noise of good pixels MEANDARK= 1.1840605E+00 / average of the dark values subtracted MEANBLEV= 2.2629797E+03 / average of all bias levels subtracted MEANFLSH= 0.000000 / Mean number of counts in post flash exposure OCRVAL1 = 177.4441691152 / first axis value at reference pixel OCRVAL2 = 48.42061024184 / second axis value at reference pixel OCRPIX2 = 1024.0 / y-coordinate of reference pixel OCRPIX1 = 2100.0 / x-coordinate of reference pixel ONAXIS2 = 2048 / Axis length ONAXIS1 = 4096 / Axis length OCD2_2 = 3.75523E-06 / partial of second axis coordinate w.r.t. y OCD2_1 = -1.30646E-05 / partial of second axis coordinate w.r.t. x OORIENTA= -74.41816056503205 / position angle of image y axis (deg. e of n) OCTYPE1 = 'RA---TAN' / the coordinate type for the first axis OCD1_1 = -4.6268E-06 / partial of first axis coordinate w.r.t. x OCD1_2 = -1.34662E-05 / partial of first axis coordinate w.r.t. y OCTYPE2 = 'DEC--TAN' / the coordinate type for the second axis WCSCDATE= '19:47:01 (03/02/2008)' / Time WCS keywords were copied. A_0_2 = 2.166159529762128E-06 B_0_2 = -7.216881450774451E-06 A_1_1 = -5.197457646683463E-06 B_1_1 = 6.184432357744781E-06 A_2_0 = 8.551277582556504E-06 B_2_0 = -1.746491877058669E-06 A_0_3 = 1.081935198202655E-11 B_0_3 = -4.175472049274933E-10 A_1_2 = -5.234870743692412E-10 B_1_2 = -6.169265268681388E-11 A_2_1 = -3.977154774728731E-11 B_2_1 = -5.08571616738621E-10 A_3_0 = -4.730444829222792E-10 B_3_0 = 8.567635427816318E-11 A_0_4 = 1.493561711660489E-14 B_0_4 = -9.957049065547887E-15 A_1_3 = -2.456997553774615E-14 B_1_3 = 1.217430115688482E-14 A_2_2 = 3.467912671043783E-14 B_2_2 = -3.661432592865741E-14 A_3_1 = 1.971022971660309E-15 B_3_1 = -3.779506805487477E-15 A_4_0 = 2.374301062402315E-14 B_4_0 = -1.768765382600472E-14 A_ORDER = 4 B_ORDER = 4 HISTORY The following throughput tables were used: crotacomp$hst_ota_007_syn.fit HISTORY s, cracscomp$acs_wfc_im123_004_syn.fits, cracscomp$acs_f606w_005_syn.fit HISTORY s, cracscomp$acs_wfc_ebe_win12f_005_syn.fits, cracscomp$acs_wfc_ccd1_mjd HISTORY _019_syn.fits[mjd#] O_CRVAL1= 177.42240795 O_CRVAL2= 48.42415805 G_CRVAL1= 177.422183024 G_CRVAL2= 48.4239612725 G_DRA = -0.809732 G_DDEC = -0.708399 G_RMSRA = 0.681434 G_RMSDEC= 0.49296 G_NMATCH= 39 S_CRVAL1= 177.42223804 S_CRVAL2= 48.423940185 S_DRA = -0.611676 S_DDEC = -0.784314 S_RMSRA = 0.122604 S_RMSDEC= 0.181365 S_NMATCH= 49 T_CRVAL1= 177.422216173 T_CRVAL2= 48.4240292658 T_DRA = -0.690399 T_DDEC = -0.463623 T_RMSRA = 0.235472 T_RMSDEC= 0.17343 T_NMATCH= 2