--- header unit 0: primary ---
SIMPLE = T / Written by IDL: Wed Jul 23 01:06:02 2008
BITPIX = -32 / array data type
NAXIS = 2 / number of array dimensions
NAXIS1 = 128
NAXIS2 = 128
ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator
EXTNAME = 'SCI' / Extension name
EXTVER = 1 / Extension version
DATE = '2005-04-13T11:03:45' / Date FITS file was generated
IRAF-TLM = '11:03:19 (27/08/2007)' / Time of last modification
INHERIT = T / inherit the primary header
EXPNAME = 'j93k4cpsq' / exposure identifier
BUNIT = 'ELECTRONS' / brightness units
  / WFC CCD CHIP IDENTIFICATION
CCDCHIP = '-999' / CCD chip (1 or 2)
  / World Coordinate System and Related Parameters
WCSAXES = 2 / number of World Coordinate System axes
CRPIX1 = 6820.00 / x-coordinate of reference pixel
CRPIX2 = 44.0000 / y-coordinate of reference pixel
CRVAL1 = '       83.800049' / first axis value at reference pixel
CRVAL2 = -5.265 / 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 = -1.388772378451444E-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 = 1.388772378451444E-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 = 8.386070833333E+01 / RA of aperture reference position
DEC_APER = -5.245125000000E+00 / Declination of aperture reference position
PA_APER = 97.5276 / Position Angle of reference aperture center (de
VAFACTOR = 9.999436871868E-01 / velocity aberration plate scale factor
  / READOUT DEFINITION PARAMETERS
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
  / PHOTOMETRY KEYWORDS
PHOTMODE = 'ACS WFC1 F435W' / observation con
PHOTFLAM = 3.1412476E-19 / inverse sensitivity, ergs/cm2/Ang/electron
PHOTZPT = -2.1100000E+01 / ST magnitude zero point
PHOTPLAM = 4.3174038E+03 / Pivot wavelength (Angstroms)
PHOTBW = 2.9347406E+02 / RMS bandwidth of filter plus detector
  / REPEATED EXPOSURES INFO
NCOMBINE = 8 / number of image sets combined during CR rejecti
  / DATA PACKET INFORMATION
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)
  / ON-BOARD COMPRESSION INFORMATION
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)
  / IMAGE STATISTICS AND DATA QUALITY FLAGS
NGOODPIX = 7818196 / number of good pixels
SDQFLAGS = 31743 / serious data quality flags
GOODMIN = 4.9308457E+00 / minimum value of good pixels
GOODMAX = 7.3395438E+04 / maximum value of good pixels
GOODMEAN = 3.5053943E+02 / mean value of good pixels
SOFTERRS = 0 / number of soft error pixels (DQF=1)
SNRMIN = 7.3827159E-01 / minimum signal to noise of good pixels
SNRMAX = 2.1961023E+02 / maximum signal to noise of good pixels
SNRMEAN = 1.7006802E+01 / mean value of signal to noise of good pixels
MEANDARK = 8.2016486E-01 / average of the dark values subtracted
MEANBLEV = 2.2607441E+03 / average of all bias levels subtracted
MEANFLSH = 0.000000 / Mean number of counts in post flash exposure
HISTORY The following throughput tables were used: crotacomp$hst_ota_007_syn.fit
HISTORY s, cracscomp$acs_wfc_im123_004_syn.fits, cracscomp$acs_f435w_004_syn.fit
HISTORY s, cracscomp$acs_wfc_ebe_win12f_005_syn.fits, cracscomp$acs_wfc_ccd1_017
HISTORY _syn.fits
OCRVAL1 = 83.846985660141 / first axis value at reference pixel
OCRVAL2 = -5.2430471379051 / 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 = -1.89298E-06 / partial of second axis coordinate w.r.t. y
OCD2_1 = 1.35717E-05 / partial of second axis coordinate w.r.t. x
OORIENTA = 97.78214033893759 / position angle of image y axis (deg. e of n)
OCTYPE1 = 'RA---TAN' / the coordinate type for the first axis
OCD1_1 = 2.81098E-06 / partial of first axis coordinate w.r.t. x
OCD1_2 = 1.38512E-05 / partial of first axis coordinate w.r.t. y
OCTYPE2 = 'DEC--TAN' / the coordinate type for the second axis
WCSCDATE = '11:11:20 (13/04/2005)' / Time WCS keywords were copied.
A_0_2 = 2.158523085937909E-06
B_0_2 = -7.22058969182945E-06
A_1_1 = -5.176320007117374E-06
B_1_1 = 6.186275523319541E-06
A_2_0 = 8.547649516762922E-06
B_2_0 = -1.731713605385154E-06
A_0_3 = 9.526680850367635E-12
B_0_3 = -4.073703663730309E-10
A_1_2 = -5.235574191806063E-10
B_1_2 = -6.717444787822568E-11
A_2_1 = -4.470468292771582E-11
B_2_1 = -5.06654894180245E-10
A_3_0 = -4.730760978491457E-10
B_3_0 = 8.843846237078725E-11
A_0_4 = 1.314895073168699E-14
B_0_4 = -9.830082670549565E-15
A_1_3 = -2.389955416726597E-14
B_1_3 = 1.263369702042407E-14
A_2_2 = 3.791708241949858E-14
B_2_2 = -3.770533916228691E-14
A_3_1 = 3.803928717004951E-16
B_3_1 = -3.169586360068593E-15
A_4_0 = 2.318824472537294E-14
B_4_0 = -1.874293764095675E-14
A_ORDER = 4
B_ORDER = 4
HISTORY HEXTRACT: Wed Jul 23 01:06:02 2008
HISTORY Original image size was 18000 by 7500
HISTORY Extracted Image: [2180:2307,3706:3833]