SIMPLE = T /T conforms to standard FITS format BITPIX = 32 /32-bit integer data NAXIS = 2 /number of axes in array NAXIS1 = 791 /number of pixels in X axis (samples) NAXIS2 = 781 /number of pixels in Y axis (rows) OBJECT = 'P/HALLEY ' /object name FILE-NUM= 404851 /disc file name code DATE-OBS= '12/04/89' /Mid-UT date of observation TIME-OBS= 0.18611 /decimal part of day (mid-UT) DATE-REL= '01/06/89' /date released to archive DISCIPLN= 'NEAR NUCLEUS' /IHW net LONG-OBS= '248/24/02' /observatory east longitude LAT--OBS= '+31/57/50' /observatory latitude SYSTEM = '46950102' /observing system code OBSERVER= 'BELTON,M/MEECH,K ' /observer's name SUBMITTR= 'THOMPSON,T ' /submitter's name SPEC-EVT= F /special event in image if T DAT-FORM= 'STANDARD ' /type of data OBSVTORY= 'KITT PEAK NATIONAL' /observatory name ELEV-OBS= 2120 /elevation of observatory in meters TELESCOP= 'MAYALL 4.0M ' /telescope used APERTURE= 4.00 /telescope aperture in meters TELEFL = 10.417 /effective focal length in meters PLTSCALE= 19.80 /platescale in arcsec per mm CROTA1 = 270.0 /position angle of sample axis, N->E SENSE = T /PA counterclockwise (T) DETECTOR= 'TI 2 CCD ' /detector used DIGITIZE= ' ' /type of digitizer used if not detector APSIZE = 0.015 /size of pixels in mm FILTER = 'MOULDR ' /filter used EXPOSURE= 200.0 /exposure duration in seconds AIRM-MID= 1.290 /calculated air mass at mid-exposure QUALITY = 'POOR ' /general quality of image DATE-WRT= '30/05/89' /date this file was written ORIGIN = 'NOAO ' /tape writing institution BUNIT = 'REL. INT. ' /units of the intensity values COMETMAX= 1200 /maximum tape value in comet image SKYMIN = 700 /approximate minimum background level COMMENT SCATTERED LIGHT END