XTENSION= 'IMAGE ' / IMAGE extension BITPIX = -32 / number of bits per data pixel NAXIS = 2 / number of data axes NAXIS1 = 83 / length of data axis 1 NAXIS2 = 83 / length of data axis 2 PCOUNT = 0 / required keyword; must = 0 GCOUNT = 1 / required keyword; must = 1 BSCALE = 1. / True_value = BSCALE * FITS_value + BZERO BZERO = 32768. / True_value = BSCALE * FITS_value + BZERO DATE = '2004-08-25T01:44:57' / file creation date (YYYY-MM-DDThh:mm:ss UT) EXTNAME = 'IMAGE ' / Name of image extension EXTVER = 2 / Extension identifier ORIGIN = 'SDSS-DR1' / Source of the data OBJECT = 'MGC44540' / Object name OBSERVAT= 'APO ' / Name of observatory LATITUDE= 32.78036 / Telescope latitude in deg LONGITUD= -105.8204 / Telescope longitude in deg HEIGHT = 2788. / Telescope height above sea level in m TELESCOP= '2.5m ' / SDSS 2.5m INSTRUME= 'Imaging ' / SDSS Imaging Camera SECPPIX = 0.396 / Pixel size in arcsec DATE-OBS= '1999-03-22' / TAI date of observation TAI = '08:23:09.48' / TAI of observation AZIMUTH = 359.8631 / Azimuth of observation in deg ALT = 57.3064 / Altitude of observation in deg EXPTIME = 53.90746 / Exposure time in s RADECSYS= 'ICRS ' / International Celestial Reference System WCSDIM = 2 / Number of WCS coordinates CTYPE1 = 'RA---TAN' / Type of coordinate on axis 1 CTYPE2 = 'DEC--TAN' / Type of coordinate on axis 2 CRPIX1 = -211.5 / WCS reference point CRPIX2 = 335.5 / WCS reference point CRVAL1 = 199.8146 / WCS reference value CRVAL2 = -0.1047873 / WCS reference value CD1_1 = -0.0001099966 / WCS transformation matrix element CD1_2 = 6.030263E-09 / WCS transformation matrix element CD2_1 = -1.586022E-09 / WCS transformation matrix element CD2_2 = 0.0001100073 / WCS transformation matrix element WAT0_001= 'system=image' WAT1_001= 'wtype=tan axtype=ra' WAT2_001= 'wtype=tan axtype=dec' LTV1 = 533. / Physical coordinate system (PCS) offset LTV2 = -689. / PCS offset LTM1_1 = 0. / PCS transformation matrix element LTM1_2 = 1. / PCS transformation matrix element LTM2_1 = -1. / PCS transformation matrix element LTM2_2 = 0. / PCS transformation matrix element SOFTBIAS= 1000 / SDSS software bias added to all pixel values FLUX20 = 2192.6 / Approximate counts of 20th mag object SKY = 142.16 / Approximate sky brightness in counts