***Observing Log*** SIMPLE = T / Proper FITS format used BITPIX = 16 / 2 byte-pixel per data point NAXIS = 2 / CCD array NAXIS1 = 50 / Fastest varying axis in array NAXIS2 = 1024 / Next axis CCDSEG = '[376:575,1:1024]' / Frame format FILE = 'CC66774.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[Rm]/[Rci]/Tn/WxL' / Name(s) or ID(s) DATE-OBS= '20/07/99' / Universal Date: DD/MM/YY TIME-OBS= '08:00:00' / start Universal time ENDTIME = '08:00:12' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 5.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5184 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 47.00 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2698 / telescope focus FOCUSSP = 4.76 / spectrograph focus SLITWID = 306 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT 06:00 UT CCD Temp -100.6C COMMENT INSTRUME= 'cass-ccd' / Data acquisition instrument DETECTOR= 'DDOCCD ' / CSF-THX-31156 Thomson 1024x1024 ccd ORIGSEC = '[1:1024,1:1024]' / Original frame format TELESCOP= '1.88M ' / Telescope CREATOR = 'CCD5NT v6.0' / Program that created this FITS file FILTER = 'h ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 80 / % relative humidity TEMP-DOM= 18.6 / temperature: deg C, Dome floor air TEMP-CSE= 16.4 / temperature: deg C, pri cast TEMP-SEC= 15 / temperature: deg C, sec air TEMP-PRI= 16.6 / temperature: deg C, pri air TEMP-CON= 22.785 / temperature: deg C, CE200 box TEMP-HRK= 18.657 / temperature: deg C, heated Rack TEMP-CS1= 18.7 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 20.1 / temperature: deg C, Cass, position2 TEMP-EC1= / temperature: deg C, Eche, position1 TEMP-EC2= / temperature: deg C, Eche, position2 TEMP-TUB= / temperature: deg C, telescope tube TEMP-CEL= / temperature: deg C, mirror cell Ï ***Observing Log*** SIMPLE = T / Proper FITS format used BITPIX = 16 / 2 byte-pixel per data point NAXIS = 2 / CCD array NAXIS1 = 50 / Fastest varying axis in array NAXIS2 = 1024 / Next axis CCDSEG = '[376:575,1:1024]' / Frame format FILE = 'CC66775.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[Rm]/[Rci]/Tn/WxL' / Name(s) or ID(s) DATE-OBS= '20/07/99' / Universal Date: DD/MM/YY TIME-OBS= '08:00:21' / start Universal time ENDTIME = '08:00:33' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 5.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5184 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 47.00 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2698 / telescope focus FOCUSSP = 4.76 / spectrograph focus SLITWID = 306 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT 06:00 UT CCD Temp -100.6C COMMENT INSTRUME= 'cass-ccd' / Data acquisition instrument DETECTOR= 'DDOCCD ' / CSF-THX-31156 Thomson 1024x1024 ccd ORIGSEC = '[1:1024,1:1024]' / Original frame format TELESCOP= '1.88M ' / Telescope CREATOR = 'CCD5NT v6.0' / Program that created this FITS file FILTER = 'h ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 80 / % relative humidity TEMP-DOM= 18.6 / temperature: deg C, Dome floor air TEMP-CSE= 16.4 / temperature: deg C, pri cast TEMP-SEC= 15 / temperature: deg C, sec air TEMP-PRI= 16.6 / temperature: deg C, pri air TEMP-CON= 22.753 / temperature: deg C, CE200 box TEMP-HRK= 18.654 / temperature: deg C, heated Rack TEMP-CS1= 18.7 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 20.1 / temperature: deg C, Cass, position2 TEMP-EC1= / temperature: deg C, Eche, position1 TEMP-EC2= / temperature: deg C, Eche, position2 TEMP-TUB= / temperature: deg C, telescope tube TEMP-CEL= / temperature: deg C, mirror cell Ï ***Observing Log*** SIMPLE = T / Proper FITS format used BITPIX = 16 / 2 byte-pixel per data point NAXIS = 2 / CCD array NAXIS1 = 50 / Fastest varying axis in array NAXIS2 = 1024 / Next axis CCDSEG = '[376:575,1:1024]' / Frame format FILE = 'CC66776.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[Rm]/[Rci]/Tn/WxL' / Name(s) or ID(s) DATE-OBS= '20/07/99' / Universal Date: DD/MM/YY TIME-OBS= '08:00:42' / start Universal time ENDTIME = '08:00:54' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 5.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5184 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 47.00 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2698 / telescope focus FOCUSSP = 4.76 / spectrograph focus SLITWID = 306 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT 06:00 UT CCD Temp -100.6C COMMENT INSTRUME= 'cass-ccd' / Data acquisition instrument DETECTOR= 'DDOCCD ' / CSF-THX-31156 Thomson 1024x1024 ccd ORIGSEC = '[1:1024,1:1024]' / Original frame format TELESCOP= '1.88M ' / Telescope CREATOR = 'CCD5NT v6.0' / Program that created this FITS file FILTER = 'h ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 80 / % relative humidity TEMP-DOM= 18.6 / temperature: deg C, Dome floor air TEMP-CSE= 16.4 / temperature: deg C, pri cast TEMP-SEC= 15 / temperature: deg C, sec air TEMP-PRI= 16.6 / temperature: deg C, pri air TEMP-CON= 22.810 / temperature: deg C, CE200 box TEMP-HRK= 18.672 / temperature: deg C, heated Rack TEMP-CS1= 18.8 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 20.1 / temperature: deg C, Cass, position2 TEMP-EC1= / temperature: deg C, Eche, position1 TEMP-EC2= / temperature: deg C, Eche, position2 TEMP-TUB= / temperature: deg C, telescope tube TEMP-CEL= / temperature: deg C, mirror cell Ï