SIMPLE = T / Standard FITS format BITPIX = -32 / Image values are 4-byte reals NAXIS = 2 / # of axes NAXIS1 = 385 / # samples per line NAXIS2 = 385 / # lines in image DATE = '2000-09-07' / Date of creation of this file (UTC) OBJECT = 'Aur00' / Name of survey field OBSERVAT= 'Martin ' / Martin Observatory, Virginia Tech TELESCOP= 'SLIC ' / Spectral Line Imaging Camera INSTRUME= '58mm ' / 58mm lens DATE-OBS= '1995-10-23T07:25:00' / Date and time of start of obs. (UTC) COMMENT Start time of observations is approximate to within a few minutes. FILTER = 2 / H-alpha survey filter EXPTIME = 600.0 / Exposure time in seconds (per image) NIMAGES = 12 / Number of images combined GAIN = 2.53 / CCD gain (electrons/ADU) RDNOISE = 6.9 / CCD readout noise (electrons rms) CAMTEMP = -110.5 / Approximate CCD temperature (C) BUNIT = 'R ' / Image (intensity) units are Rayleighs (R) COMMENT 1 R = 10**6/4pi photons/cm**2/s/sr DATAMAX = 1.435094E+03 / Maximum data value (R) DATAMIN = -7.314494E+02 / Minimum data value (R) RADECSYS= 'FK5 ' CTYPE1 = 'RA---TAN' / Coordinate type (gnomonic projection) CRVAL1 = 73.302956561 / RA at reference sample (degrees) CRPIX1 = 196.229 / Reference sample (pixel) CDELT1 = -0.026783931 / Coordinate increment along axis 1 (deg/pixel) CTYPE2 = 'DEC--TAN' / Coordinate type (gnomonic projection) CRVAL2 = 40.396170899 / DEC at reference line (degrees) CRPIX2 = 201.415 / Reference line (pixel) CDELT2 = 0.026783931 / Coordinate increment along axis 2 (deg/pixel) EQUINOX = 2000 CROTA1 = 0.557 / Rotation of axis 1 from RA (degrees) CROTA2 = 0.557 / Rotation of axis 2 from DEC (degrees) COMMENT CROTA1 = CROTA2 = image rotation angle r. If r=0, and the image is COMMENT displayed with pixel coordinate x increasing toward the right and COMMENT pixel coordinate y increasing upward, then RA will increase toward theCOMMENT left and DEC will increase upward, at the coordinate reference pixel. COMMENT If r>0, the DEC axis is rotated by r degrees counterclockwise from theCOMMENT vertical y axis, at the coordinate reference pixel. IMWCS = '2.6.3, 9 July 1999, Doug Mink, SAO' / WCSTools version OHRING = T / Atmospheric OH ring removed (T=yes, F=no) GRADIENT= T / Background gradient removed (T=yes, F=no) CONTINUM= T / Continuum correction applied (T=yes, F=no) HACONV = 0.600 / H-alpha image convolution factor COMMENT Continuum Correction: an appropriately shifted and scaled continuum COMMENT image was subtracted from the H-alpha image. Prior to subtraction the COMMENT H-alpha image was convolved with a narrow gaussian exp(-r**2/HCONV**2)COMMENT (where r and HCONV are in units of pixels) to better match stellar COMMENT widths in the H-alpha image with those in the shifted continuum image.MEDIAN0 = T / Median image value set to 0 (T=yes, F=no) CRADIUS = 190 / Radius of cropped circular image (pixels) COMMENT The IEEE-754 floating point value NaN is used to represent undefined COMMENT (i.e., blank) values outside the circular image. END vv6>eGteh[Y0+_(近% TWh 77PBD{jPH}p.8|2m( Xs)Կ'{ .K'Tp3 j@JtLt h`6 pʧxˀ$ _OR8x(RHp_ 6
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