***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 = '[381:580,1:1024]' / Frame format FILE = 'CC64906.fts' / File name OBJECT = 'bias ' / Image name IMAGETYP= 'zero ' / Type of observation OBSERVER= '[HI]/Att/Brn/WxL' / Name(s) or ID(s) DATE-OBS= '25/04/99' / Universal Date: DD/MM/YY TIME-OBS= '03:21:18' / start Universal time ENDTIME = '03:21:18' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 0 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5894 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 51.58 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2748 / telescope focus FOCUSSP = 6.85 / spectrograph focus SLITWID = 250 / slit width in microns SLITLEN = / slit length in microns COMMENT average of 4 biases COMMENT Dome T 4.2C rel H 41% at 03:15 UT,ccdtemp -100.4C COMMENT HV=1320V 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 = ' ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 41% / % relative humidity TEMP-DOM= 4.2 / temperature: deg C, Dome floor air TEMP-CSE= .2 / temperature: deg C, pri cast TEMP-SEC= -2.6 / temperature: deg C, sec air TEMP-PRI= -1.6 / temperature: deg C, pri air TEMP-CON= 27.8 / temperature: deg C, CE200 box TEMP-HRK= 8.5 / temperature: deg C, heated Rack TEMP-CS1= 3.6 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 4.6 / 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 = '[381:580,1:1024]' / Frame format FILE = 'CC64907.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[HI]/Att/Brn/WxL' / Name(s) or ID(s) DATE-OBS= '25/04/99' / Universal Date: DD/MM/YY TIME-OBS= '03:23:36' / start Universal time ENDTIME = '03:23:55' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 12.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5894 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 51.58 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2748 / telescope focus FOCUSSP = 6.85 / spectrograph focus SLITWID = 250 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT Dome T 4.2C rel H 41% at 03:15 UT,ccdtemp -100.4C COMMENT HV=1320V 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 = ' ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 41% / % relative humidity TEMP-DOM= 4.2 / temperature: deg C, Dome floor air TEMP-CSE= .2 / temperature: deg C, pri cast TEMP-SEC= -2.6 / temperature: deg C, sec air TEMP-PRI= -1.6 / temperature: deg C, pri air TEMP-CON= 28.0 / temperature: deg C, CE200 box TEMP-HRK= 8.6 / temperature: deg C, heated Rack TEMP-CS1= 4.0 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 4.9 / 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 = '[381:580,1:1024]' / Frame format FILE = 'CC64908.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[HI]/Att/Brn/WxL' / Name(s) or ID(s) DATE-OBS= '25/04/99' / Universal Date: DD/MM/YY TIME-OBS= '03:24:32' / start Universal time ENDTIME = '03:24:51' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 12.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5894 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 51.58 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2748 / telescope focus FOCUSSP = 6.85 / spectrograph focus SLITWID = 250 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT Dome T 4.2C rel H 41% at 03:15 UT,ccdtemp -100.4C COMMENT HV=1320V 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 = ' ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 41% / % relative humidity TEMP-DOM= 4.2 / temperature: deg C, Dome floor air TEMP-CSE= .2 / temperature: deg C, pri cast TEMP-SEC= -2.6 / temperature: deg C, sec air TEMP-PRI= -1.6 / temperature: deg C, pri air TEMP-CON= 28.3 / temperature: deg C, CE200 box TEMP-HRK= 8.6 / temperature: deg C, heated Rack TEMP-CS1= 4.3 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 5.2 / 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 = '[381:580,1:1024]' / Frame format FILE = 'CC64909.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[HI]/Att/Brn/WxL' / Name(s) or ID(s) DATE-OBS= '25/04/99' / Universal Date: DD/MM/YY TIME-OBS= '03:25:00' / start Universal time ENDTIME = '03:25:19' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 12.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5894 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 51.58 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2748 / telescope focus FOCUSSP = 6.85 / spectrograph focus SLITWID = 250 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT Dome T 4.2C rel H 41% at 03:15 UT,ccdtemp -100.4C COMMENT HV=1320V 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 = ' ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 41% / % relative humidity TEMP-DOM= 4.2 / temperature: deg C, Dome floor air TEMP-CSE= .2 / temperature: deg C, pri cast TEMP-SEC= -2.6 / temperature: deg C, sec air TEMP-PRI= -1.6 / temperature: deg C, pri air TEMP-CON= 28.5 / temperature: deg C, CE200 box TEMP-HRK= 8.6 / temperature: deg C, heated Rack TEMP-CS1= 4.7 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 5.5 / 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 = '[381:580,1:1024]' / Frame format FILE = 'CC64910.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[HI]/Att/Brn/WxL' / Name(s) or ID(s) DATE-OBS= '25/04/99' / Universal Date: DD/MM/YY TIME-OBS= '03:25:28' / start Universal time ENDTIME = '03:25:47' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 12.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5894 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 51.58 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2748 / telescope focus FOCUSSP = 6.85 / spectrograph focus SLITWID = 250 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT Dome T 4.2C rel H 41% at 03:15 UT,ccdtemp -100.4C COMMENT HV=1320V 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 = ' ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 41% / % relative humidity TEMP-DOM= 4.2 / temperature: deg C, Dome floor air TEMP-CSE= .2 / temperature: deg C, pri cast TEMP-SEC= -2.6 / temperature: deg C, sec air TEMP-PRI= -1.6 / temperature: deg C, pri air TEMP-CON= 28.5 / temperature: deg C, CE200 box TEMP-HRK= 8.5 / temperature: deg C, heated Rack TEMP-CS1= 4.7 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 5.5 / 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 = '[381:580,1:1024]' / Frame format FILE = 'CC64911.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[HI]/Att/Brn/WxL' / Name(s) or ID(s) DATE-OBS= '25/04/99' / Universal Date: DD/MM/YY TIME-OBS= '03:25:56' / start Universal time ENDTIME = '03:26:15' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 12.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5894 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 51.58 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2748 / telescope focus FOCUSSP = 6.85 / spectrograph focus SLITWID = 250 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT Dome T 4.2C rel H 41% at 03:15 UT,ccdtemp -100.4C COMMENT HV=1320V 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 = ' ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 41% / % relative humidity TEMP-DOM= 4.2 / temperature: deg C, Dome floor air TEMP-CSE= .2 / temperature: deg C, pri cast TEMP-SEC= -2.6 / temperature: deg C, sec air TEMP-PRI= -1.6 / temperature: deg C, pri air TEMP-CON= 28.4 / temperature: deg C, CE200 box TEMP-HRK= 8.3 / temperature: deg C, heated Rack TEMP-CS1= 4.7 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 5.5 / 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 = '[381:580,1:1024]' / Frame format FILE = 'CC64912.fts' / File name OBJECT = 'Tungsten' / Image name IMAGETYP= 'flat ' / Type of observation OBSERVER= '[HI]/Att/Brn/WxL' / Name(s) or ID(s) DATE-OBS= '25/04/99' / Universal Date: DD/MM/YY TIME-OBS= '03:26:24' / start Universal time ENDTIME = '03:26:43' / End time of exposure RA = ' ' / Right Ascension, hh:mm:ss DEC = ' ' / Declination, +/-dd:mm:ss HA = ' ' / Actual position of telescope EQUINOX = 1900 / Equinox EXPTIME = 12.00 / Exposure time in seconds EXPCOUNT= / Exposure meter counts AIRMASS = / Airmass at start of exposure CENTLAM = 5894 / Central wavelength for observation GRATING = 1800 / Grating description, lines/mm GTILT = 51.58 / Grating Tilt, degrees XGRATING= / Cross Grating, lines/mm XGTILT = / Cross Grating Tilt, degrees FOCUSTEL= 2748 / telescope focus FOCUSSP = 6.85 / spectrograph focus SLITWID = 250 / slit width in microns SLITLEN = / slit length in microns COMMENT COMMENT Dome T 4.2C rel H 41% at 03:15 UT,ccdtemp -100.4C COMMENT HV=1320V 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 = ' ' / Filter ID GAIN = 90 / cgain; =[(Gain_Factor-1)]x30 RELHUMID= 41% / % relative humidity TEMP-DOM= 4.2 / temperature: deg C, Dome floor air TEMP-CSE= .2 / temperature: deg C, pri cast TEMP-SEC= -2.6 / temperature: deg C, sec air TEMP-PRI= -1.6 / temperature: deg C, pri air TEMP-CON= 28.4 / temperature: deg C, CE200 box TEMP-HRK= 8.2 / temperature: deg C, heated Rack TEMP-CS1= 4.7 / temperature: deg C, Cass: CCD-Bridge TEMP-CS2= 5.4 / 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