SIMPLE = T / Fits standard BITPIX = 16 / Bits per pixel NAXIS = 2 / Number of axes NAXIS1 = 2102 / Axis length NAXIS2 = 2092 / Axis length EXTEND = T / File may contain extensions BSCALE = 1.000000E0 / REAL = TAPE*BSCALE + BZERO BZERO = 3.276800E4 / Number to add to data (unsigned int) ORIGIN = 'NOAO-IRAF FITS ' / FITS file originator July 1999 DATE = '2017-07-08T12:11:32' / Date FITS file was generated (yyyy-mm-dd) HISTORY = 'median raw - median bias (fourth lowest of 10 files)' OBJNAM = 'dark ' / Name of the object observed OBSERVAT= 'NFO Webscope ' / observatory OBSERVER= 'A. W. Neely ' COMMENTS= 'no shutter filter ' / density filter on shutter wheel EXPTIME = 120.000000 / actual integration time DARKTIME= 23. / total elapsed time for readout IMAGETYP= 'dark field ' / picture, small, tiny , dark, bias DATE-OBS= '2017-07-08 ' / date (yyyy-mm-dd) at start of exposure UT = '12:11:32 ' / universal time at start of exposure ST = '00:05:14 ' / local sidereal time at start of exposure RA = '11:14:48 ' / right ascension DEC = '+55:00:58 ' / declination EQUINOX = 2000.000000 / epoch of ra and dec ZD = 92.043228 / zenith distance AIRMASS = -28.047701 / airmass TELESCOP= '24" ' / telescope name DETECTOR= '2084x2084 ' / detector KAF-4301e Finger Lake PREFLASH= 0 / preflash time, seconds GAIN = 2.4 / gain, electrons per adu DWELL = 25 / sample integration time RDNOISE = 9.4 / read noise, electrons CAMTEMP = -20.340001 / camera temperature LATITUDE= 32.771 / latitude of Observatory BIASSEC = '[6:8,5:2088] ' / prescan portion of frame TRIMSEC = '[9:2092,5:2088] ' / region to be extracted DATASEC = '[9:2092,5:2088] ' / image portion of frame CCDSEC = '[1:2102,1:2092] ' / orientation to full frame ORIGSEC = '[1:2102,1:2092] ' / original size full frame CCDSUM = '1 1 ' / on chip summation INSTRUME= 'big2048 ' / instrument FILTER = 'N1 ' / instrument filters on filter wheel FILENAME= 'd57943dark.fit ' / filename (p,d,b,f(lat), JD.index.fits) MJD-OBS = 2457943.008704 / julian date + .5 * time of observation HMJD-OBS= 2457943.005321 / heliocentric julian date + .5 * time AIRTEMP = 62.193298 / air ambiant temperature HUMIDITY= 58.000000 / relative humidity CLOUDNUM= 0.500000 / cloud sensor readout (0 - 15) DEW = 'N ' / dew sensor readout(Y or N) WINDSPEE= 0.000000 / windspeed mph GROUPNAM= 'gr97 ' / atis group name TELFOCUS= 79 / current focus position for this filter CTYPE1 = 'RA---TAN' / axis 1 orientation (x) CTYPE2 = 'DEC--TAN' / axis 2 orientation (y) CDELT1 = -2.183E-4 / degrees per pixel increment CDELT2 = -2.183E-4 / degrees per pixel increment CRPIX1 = 1.05000E+3 / reference pixel for RA CRPIX2 = 1.04600E+3 / reference pixel for DEC CRVAL1 = 1.687000E+02 / RA CRVAL2 = 5.501639E+01 / Dec LASTVDIF= 38.3 / Last atmospheric extinction (%V band)