Raw and Elixir data FITS headers for CCD13
The following FITS headers originate from a raw file, as archived, and the Elixir detrended frame. Both are originating from the "ccd13" extension of the same file.

The raw file was generated at the telescope in July 2003 and processed by Elixir in November 2003 (ver. 2.0).


1. Raw data
 SIMPLE  =                    T / Standard FITS
 BITPIX  =                   16 / 16bit 2s complement 0..65535 (BZERO=32768)
 NAXIS   =                    2 / Number of axes
 NAXIS1  =                 2112 / Number of pixel columns
 NAXIS2  =                 4644 / Number of pixel rows
 PCOUNT  =                    0 / Random parameters before each array in a group
 GCOUNT  =                    1 / Number of random groups
 COMMENT
 COMMENT Observation Summary
 COMMENT -------------------
 CMMTOBS = 'N/A     '
 CMMTSEQ = 'DP5[5/5] - Ref + [-3.0 10.0]'
 OBJECT  = 'N6205 fo'
 OBSERVER= 'QSO Team'
 PI_NAME = 'Gregory Fahlman'
 RUNID   = '03AC25  '
 FILENAME= '712672o.ccd13'      / Current filename after processing
 PATHNAME= '/data.MegaPrime/piko/megacam/03AQ06-N12' / Original directory name at acquisiti
 EXTNAME = 'ccd13   '           / CCD number in the mosaic
 EXTVER  =                   13 / Now matches the CCD number in the mosaic
 DATE    = '2003-07-31T10:03:39.60' / UTC Date of file creation
 HSTTIME = 'Thu Jul 31 00:08:48 HST 2003' / Local time in Hawaii
 IMAGESWV= 'CFHT DetCom v4.33 (Jul 17 2003)' / Image creation software version
 COMMENT file 712672o27, raster FULL, etype OBJECT, etime 300, filter filter_name
 COMMENT
 DETECTOR= 'MegaCam '
 COMMENT
 COMMENT Unique amplifier IDs for MegaCam:
 COMMENT
 COMMENT -- -- 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 -- --
 COMMENT 72 73 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 74 75
 COMMENT 76 77 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 78 79
 COMMENT -- -- 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 -- --
 COMMENT
 COMMENT
 COMMENT Detector
 COMMENT --------
 DETSIZE = '[1:23219,1:19354]'  / Total data pixels in full mosaic
 RASTER  = 'FULL    '
 CCDSUM  = '1 1     '           / Binning factors
 CCDBIN1 =                    1 / Binning factor along first axis
 CCDBIN2 =                    1 / Binning factor along second axis
 PIXSIZE1=                 13.5 / Pixel size for axis 1 (microns)
 PIXSIZE2=                 13.5 / Pixel size for axis 2 (microns)
 PIXSCAL1=               0.1850 / Pixel scale for axis 1 (arcsec/pixel)
 PIXSCAL2=               0.1850 / Pixel scale for axis 2 (arcsec/pixel)
 AMPNAME = '13a + 13b'          / List of amplifiers names for this image
 AMPLIST = 'A B     '           / List of amplifiers for this CCD
 CCDSIZE = '[1:2048,1:4612]'    / Detector imaging area size
 DETSEC  = '[12628:10581,14320:9709]' / Mosaic area of the entire readout
 DETSECA = '[12628:11605,14320:9709]' / Mosaic area of the A readout
 DETSECB = '[10581:11604,14320:9709]' / Mosaic area of the B readout
 DATASEC = '[33:2080,1:4612]'   / Imaging area of the entire CCD in raw frame
 ASECA   = '[1:1056,1:4612]'    / Section by A amplifier in raw frame
 DSECA   = '[33:1056,1:4612]'   / Image area of A amplifier in raw frame
 TSECA   = '[33:1056,1:4612]'   / Trim section of A amplifier = DSECA
 BSECA   = '[1:32,1:4644]'      / Overscan of A amplifier in raw frame
 CSECA   = '[1:1024,1:4612]'    / Section in full CCD after BSECA cut out
 ASECB   = '[1057:2112,1:4612]' / Section by B amplifier in raw frame
 DSECB   = '[1057:2080,1:4612]' / Image area of B amplifier in raw frame
 TSECB   = '[1057:2080,1:4612]' / Trim section of B amplifier = DSECB
 BSECB   = '[2081:2112,1:4644]' / Overscan of B amplifier in raw frame
 CSECB   = '[1025:2048,1:4612]' / Section in full CCD after BSECB cut out
 CCD     = 'Marconi/EEV CCD42-90'
 CCDNAME = '8351-17-3'          / Name of the CCD (manufacturer reference)
 CCDNICK = 'Rodolphe'           / Nickname of the CCD
 MAXLIN  =                65535 / Level at 1% linearity departure (ADU) = Average
 MAXLINA =                65535 / Level at 1% linearity departure (ADU) A amp
 MAXLINB =                65535 / Level at 1% linearity departure (ADU) B amp
 SATURATE=                65535 / Saturation value (ADU)
 GAIN    =               1.6900 / Converting gain (e-/ADU) = Average [A,B] amps
 GAINA   =               1.6600 / Converting gain of A amplifier (e-/ADU)
 GAINB   =               1.7200 / Converting gain of B amplifier (e-/ADU)
 RDNOISE =                    3 / Read noise (electrons) = Average [A,B] amps
 RDNOISEA=                    3 / Read noise (electrons) A amplifier
 RDNOISEB=                    4 / Read noise (electrons) B amplifier
 DARKCUR =                  3.0 / Dark current (e-/pixel/hour)
 QEPOINTS= '48%@350 86%@450 83%@550 78%@650 62%@750 38%@850 12%@950' / QE%@wavele
 CONSWV  = 'Not implemented'    / Controller software DSPID and SERNO versions
 DETSTAT = 'temp_status'        / temp_status_comment
 DETTEM  =    -133.000006103516 / Temp. Cold Plate (C)
 INHERIT =                    F / No need to inherit global headers
 TIMESYS = 'Null    '           / Time System for DATExxxx
 OBSTYPE = 'OBJECT  '           / Observation/ Exposure type
 EXPTYPE = 'OBJECT  '           / OBSTYPE is the new name for this
 EXPNUM  =               712672 / CFHT odometer number
 OBSID   =               712672 / CFHT odometer number
 EXPTIME =              300.148 / Measured integration time (seconds)
 EXPREQ  =                  300 / Requested integration time (seconds)
 DARKTIME=               300.00 / Dark current time (seconds)
 ORIGIN  = 'CFHT    '           / Canada-France-Hawaii Telescope
 CRPIX1  =               1066.2 / WCS Coordinate reference pixel
 CRPIX2  =               4633.7 / WCS Coordinate reference pixel
 CD1_1   =            5.194E-05 / WCS Coordinate scale matrix
 CD1_2   =                  0.0 / WCS Coordinate scale matrix
 CD2_1   =                  0.0 / WCS Coordinate scale matrix
 CD2_2   =           -5.194E-05 / WCS Coordinate scale matrix
 INSTRUME= 'MegaPrime'
 INSTMODE= 'Normal  '           / Instrument Mode
 REGMODE = 'Normal  '           / Registration Mode
 RAOFF   =                  0.0 / Right ascension compensation
 DECOFF  =                  0.0 / Declination compensation
 OBJRA   = '16:41:41.44'        / Right ascension of object
 OBJDEC  = '+36:27:37.0'        / Declination of object
 BZERO   =              32768.0 / Zero factor
 BSCALE  =                  1.0 / Scale factor
 BIASSEC = '[0:0,0:0]'          / Dual amplifiers readout - see BSECA & BSECB
 SHUTOPEN=               0.0000 / Shutter blade opening time (msec)
 SHUTCLOS=               0.0000 / Shutter blade closing time (msec)
 FILTER  = 'i.MP9701'           / Name of filter in position
 FILTERID=                   25 / Holder ID (see also FILTER)
 QRUNID  = '03AQ06  '           / Q RunID
 QOBSERVE= 'Mary Laychak'       / Name of Q Observer
 QCOORD  = 'Pierre Martin'      / Name of Q Coordinator
 QID     = 30000600000000003295
 QOBSEQID= 10001200000000008004
 QICSEQID= 10001200000000011418
 QOBITER =                    2
 QOFFID  = 10000200000000000574
 REL_DATE= '2004-08-31T00:00:00' / UTC Release Date
 COMMENT
 COMMENT Telescope
 COMMENT ---------
 COMMENT
 TELESCOP= 'CFHT 3.6m'          / Hawaii Big Island, Mauna Kea
 LATITUDE=             19.82610 / Latitude (degrees N)
 LONGITUD=            -155.4708 / Longitude (degrees E)
 TELSTAT = 'Null    '           / Telescope Control System status
 DATE-OBS= '2003-07-31'         / Date at start of observation (UTC)
 UTIME   = '10:03:39.60'        / Time at start of observation (UT)
 UTC-OBS = '10:03:39.60'        / Time at start of observation (UTC)
 MJDATE  =        52851.4192083 / Modified Julian Date at start of observation
 MJD-OBS =        52851.4192083 / Modified Julian Date at start of obs.
 SIDTIME = '20:16:16.37'        / Sidereal time at start of observation
 LST-OBS = '20:16:16.37'        / Sidereal time at start of exposure
 EPOCH   =               2000.0 / Equinox of coordinates
 EQUINOX =               2000.0 / Equinox of coordinates
 RADECSYS= 'FK5     '           / Coordinate system for equinox (FK4/FK5/GAPPT)
 RA      = '16:41:41.19'        / Object right ascension
 DEC     = '36:27:46.9'         / Object declination
 RA_DEG  =            250.42163 / Object right ascension in degrees
 DEC_DEG =            36.463028 / Object declination in degrees
 CRVAL1  =            250.42163 / WCS Ref value (RA in decimal degrees)
 CRVAL2  =            36.463028 / WCS Ref value (DEC in decimal degrees)
 CTYPE1  = 'RA---TAN'           / WCS Coordinate type
 CTYPE2  = 'DEC--TAN'           / WCS Coordinate type
 NGUIDER =                    2 / TCS Number of guiders
 NGUISTAR=                    2 / TCS number of guide stars/probes in use
 GUINAME = 'South field guider (North probe)' / TCS guider name
 GUIEQUIN=               2000.0 / TCS guider equinox
 GUIRADEC= 'FK5     '           / TCS guider system for equinox
 GUIRA   = '16:41:30.97'        / TCS guider right ascension
 GUIDEC  = '35:48:23.3'         / TCS guider declination
 GUIRAPM =                 0.00 / TCS guider right ascension proper motion arcsec
 GUIDECPM=                 0.00 / TCS guider declination proper motion arcsec
 GUIOBJN = 'GSC2.2_N1322132438' / TCS guider object name
 GUIMAGN =                 13.6 / TCS guider object magnitude
 XPROBE  =               -7.965 / Telescope bonnette guide probe X position
 YPROBE  =               14.592 / Telescope bonnette guide probe Y position
 ZPROBE  =              -12.298 / Telescope bonnette guide probe Z position
 GUIFLUX =                -9999 / TCS guider flux
 GUIFWHX =              -9999.9 / TCS guider average x FWHM in pixels
 GUIFWHY =              -9999.9 / TCS guider average y FWHM in pixels
 SKYFLUX =                    0 / TCS total sky flux
 GUINAME1= 'North field guider (South probe)' / TCS guider #1 identification
 GUIEQUI1=               2000.0 / TCS guider #1 equinox
 GUIRADE1= 'FK5     '           / TCS guider #1 system for equinox
 GUIRA1  = '16:41:44.81'        / TCS guider #1 right ascension
 GUIDEC1 = '37:06:43.2'         / TCS guider #1 declination
 GUIRAPM1=                 0.00 / TCS guider #1 right ascen proper motion arcsec
 GUIDEPM1=                 0.00 / TCS guider #1 declination proper motion arcsec
 GUIOBJN1= 'GSC2.2_N1323131114' / TCS guider #1 object name
 GUIMAGN1=                 13.6 / TCS guider #1 object magnitude
 GUIPOSX1=                4.557 / TCS guider #1 probe x position
 GUIPOSY1=                9.370 / TCS guider #1 probe y position
 GUIPOSZ1=              -12.300 / TCS guider #1 probe z position
 GUIFLUX1=                -9999 / TCS guider #1 flux
 GUIFWHX1=              -9999.9 / TCS guider #1 average x FWHM in pixels
 GUIFWHY1=              -9999.9 / TCS guider #1 average y FWHM in pixels
 GUINAME2= 'South field guider (North probe)' / TCS guider #2 identification
 GUIEQUI2=               2000.0 / TCS guider #2 equinox
 GUIRADE2= 'FK5     '           / TCS guider #2 system for equinox
 GUIRA2  = '16:41:30.97'        / TCS guider #2 right ascension
 GUIDEC2 = '35:48:23.3'         / TCS guider #2 declination
 GUIRAPM2=                 0.00 / TCS guider #2 right ascen proper motion arcsec
 GUIDEPM2=                 0.00 / TCS guider #2 declination proper motion arcsec
 GUIOBJN2= 'GSC2.2_N1322132438' / TCS guider #2 object name
 GUIMAGN2=                 13.6 / TCS guider #2 object magnitude
 GUIPOSX2=               -7.965 / TCS guider #2 probe x position
 GUIPOSY2=               14.592 / TCS guider #2 probe y position
 GUIPOSZ2=              -12.298 / TCS guider #2 probe z position
 GUIFLUX2=                -9999 / TCS guider #2 flux
 GUIFWHX2=              -9999.9 / TCS guider #2 average x FWHM in pixels
 GUIFWHY2=              -9999.9 / TCS guider #2 average y FWHM in pixels
 AIRMASS =                1.537 / Airmass at start of observation
 TELALT  =              -9999.9 / Telescope altitude at start of observation, deg
 TELAZ   =              -9999.9 / Telescope azimuth at start of observation, deg
 MOONANGL=              -9999.9 / Angle from object to moon at start in degrees
 FOCUSID = 'MegaPrime'          / Telescope focus in use
 TELCONF = 'MegaPrime'          / Telescope focus in use
 FOCUSPOS=                 1500 / Telescope focus encoder readout
 TELFOCUS=                 1500 / Telescope focus encoder readout
 BONANGLE=                  0.0 / Telescope bonnette rotation angle in degrees
 ROTANGLE=              -9999.9 / Telescope bonnette rotation angle in degrees
 ISUGAIN =                 0.30 / Instrument Stabilization Unit control gain
 ISURATE =                50.00 / ISU control rate in Hz
 ISUTCSOR=                 1.00 / ISU offload rate in Hz to telescope position
 ISUSTATE= 'Full    '           / ISU control state (Off/Only/TCS/Full/Frozen)
 ISUSTDVX=                 0.00 / ISU most recent minute std dev in x in arcsec
 ISUSTDVY=                 0.00 / ISU most recent minute std dev in y in arcsec
 FSAGAIN =                 0.30 / Focus Stage Assembly movement control gain
 FSARATE =                 0.02 / FSA control rate in Hz
 FSATHRES=                0.100 / FSA movement threshold in mm
 FSASTATE= 'None    '           / FSA control state (Off/On/Paused)
 FSANMOVE=                    0 / FSA number of actual moves in last 10 minutes
 FSAMINZ =                0.000 / FSA minimum position in last 10 minutes
 FSAMAXZ =                0.000 / FSA maximum position in last 10 minutes
 FSAMEANZ=                0.000 / FSA mean position in last 10 minutes
 FSASTDVZ=                0.000 / FSA position std dev in last 10 minutes
 RELHUMID=                6.290 / relative humidity, weathertron
 TEA2INCH=                2.780 / temp, air, two inches above fifth floor deg C
 TEA6FOOT=                3.240 / temp, air, six feet above fifth floor deg C
 TEALOWWS=                1.090 / temp, air, dome lower ws side deg C
 TEAPMIRE=                2.430 / temp, air, primary mirror east deg C
 TEAPMIRW=                2.590 / temp, air, primary mirror west deg C
 TEAPMSPN=                173.0 / temp, air, primary mirror spigot north deg C
 TEAPMSPS=                364.6 / temp, air, primary mirror spigot south deg C
 TEATOPOP=                1.060 / temp, air, dome top opposite ws deg C
 TEATOPWS=                2.340 / temp, air, dome top ws side deg C
 TEATRNGE=                3.150 / temp, air, top ring east deg C
 TEATRNGW=                3.950 / temp, air, top ring west deg C
 TEAUMIRE=                2.210 / temp, air, under primary mirror east deg C
 TEAWTHRT=                4.800 / temp, air, weathertron deg C
 TESCONRM=               -4.200 / temp, surface, floor above control room deg C
 TESFELEV=                2.430 / temp, surface, floor by freight elevatr deg C
 TESPIERN=                9999. / temp, surface, floor by north pier deg C
 TESPIERS=                3.230 / temp, surface, floor by south pier deg C
 TESPMIRW=                2.060 / temp, surface, primary mirror west deg C
 WINDDIR =                9.820 / wind direction (N=0 E=90 S=180 W=270)
 WINDSPED=                12.22 / wind speed, weathertron (knots)
 COMMENT
 COMMENT Processing Pipeline
 COMMENT -------------------
 COMMENT
 CRUNID  = '03Am06  '           / Elixir camera run ID
 HISTORY imsplice: FLIPS ver 2.0 - Elixir by CFHT - Thu Jul 31 2003 -  0:34:53
 HISTORY imsplice: Splicing the two readouts (A&B) per CCD into a unique image
 HISTORY imsplice: Splicing results in all detectors as if read from A amplifier
 HISTORY imsplice: NEXTEND keyword updated (/2) = number of CCDs vs. amplifiers
 HISTORY imsplice: EXTNAME keyword becomes `ccdxx` instead of `ampxx`
 HISTORY imsplice: AMPNAME keyword now covers both amplifiers (eg `29a + 29b')
 HISTORY imsplice: keyword {GAIN, RDNOISE, MAXLIN} replaced by two keywords [A,B]
 HISTORY imsplice: DATASEC and DETSEC keywords now reflect the entire CCD
 HISTORY imsplice: BIASSEC becomes irrelevant -> replaced by BSECA & BSECB
 HISTORY imsplice: New keywords are DETSECA, DETSECB, DSECA, DSECB, TSECA, TSECB
 HISTORY imsplice: New keywords are ASECA, ASECB, CSECA, CSECB
 COMMENT Unique detector IDs for MegaCam (North on top, East to the left)
 COMMENT    --------------------------
 COMMENT    ba ba ba ba ba ba ba ba ba
 COMMENT    00 01 02 03 04 05 06 07 08
 COMMENT --------------------------------
 COMMENT ba ba ba ba ba ba ba ba ba ba ba
 COMMENT 36 09 10 11 12 13 14 15 16 17 37
 COMMENT --------------------------------
 COMMENT 38 18 19 20 21 22 23 24 25 26 39
 COMMENT ab ab ab ab ab ab ab ab ab ab ab
 COMMENT --------------------------------
 COMMENT    27 28 29 30 31 32 33 34 35
 COMMENT    ab ab ab ab ab ab ab ab ab
 COMMENT    __________________________
 COMMENT The two upper rows of CCDs are flipped, a=A amp, b=B amp
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 END
 

2. Elixir data
          
 SIMPLE  =                    T / Standard FITS
 BITPIX  =                   16 / 16bit 2s complement 0..65535 (BZERO=32768)
 NAXIS   =                    2 / Number of axes
 NAXIS1  =                 2112 / Number of pixel columns
 NAXIS2  =                 4644 / Number of pixel rows
 PCOUNT  =                    0 / Random parameters before each array in a group
 GCOUNT  =                    1 / Number of random groups
 COMMENT
 COMMENT Observation Summary
 COMMENT -------------------
 CMMTOBS = 'N/A     '
 CMMTSEQ = 'DP5[5/5] - Ref + [-3.0 10.0]'
 OBJECT  = 'N6205 fo'
 OBSERVER= 'QSO Team'
 PI_NAME = 'Gregory Fahlman'
 RUNID   = '03AC25  '
 FILENAME= '712672p13.def'      / Current filename after processing
 PATHNAME= '/data.MegaPrime/piko/megacam/03AQ06-N12' / Original directory name at acquisiti
 EXTNAME = 'ccd13   '           / CCD number in the mosaic
 EXTVER  =                   13 / Now matches the CCD number in the mosaic
 DATE    = '2003-07-31T10:03:39.60' / UTC Date of file creation
 HSTTIME = 'Thu Jul 31 00:08:48 HST 2003' / Local time in Hawaii
 IMAGESWV= 'CFHT DetCom v4.33 (Jul 17 2003)' / Image creation software version
 COMMENT file 712672o27, raster FULL, etype OBJECT, etime 300, filter filter_name
 COMMENT  Fully Characterized and Analysed by Elixir @ CFHT
 DETECTOR= 'MegaCam '
 COMMENT
 COMMENT Unique amplifier IDs for MegaCam:
 COMMENT
 COMMENT -- -- 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 -- --
 COMMENT 72 73 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 74 75
 COMMENT 76 77 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 78 79
 COMMENT -- -- 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 -- --
 COMMENT
 COMMENT
 COMMENT Detector
 COMMENT --------
 DETSIZE = '[1:23219,1:19354]'  / Total data pixels in full mosaic
 RASTER  = 'FULL    '
 CCDSUM  = '1 1     '           / Binning factors
 CCDBIN1 =                    1 / Binning factor along first axis
 CCDBIN2 =                    1 / Binning factor along second axis
 PIXSIZE1=                 13.5 / Pixel size for axis 1 (microns)
 PIXSIZE2=                 13.5 / Pixel size for axis 2 (microns)
 PIXSCAL1=               0.1850 / Pixel scale for axis 1 (arcsec/pixel)
 PIXSCAL2=               0.1850 / Pixel scale for axis 2 (arcsec/pixel)
 AMPNAME = '13a + 13b'          / List of amplifiers names for this image
 AMPLIST = 'A       '           / Data are now as if CCD read from A amp
 CCDSIZE = '[1:2048,1:4612]'    / Detector imaging area size
 DETSEC  = '[12628:10581,14320:9709]' / Mosaic area of the entire readout
 DETSECA = '[12628:11605,14320:9709]' / Mosaic area of the A readout
 DETSECB = '[10581:11604,14320:9709]' / Mosaic area of the B readout
 DATASEC = '[33:2080,1:4612]'   / Imaging area of the entire CCD in raw frame
 IMMODE  =                 1929 / Imaging area mode
 FLATSCAL=          0.000000000 / Mosaic flat-field scaling factor
 IMMODEA =                 1957 / Imaging area mode for A amplifier
 IMMODEB =                 1957 / Imaging area mode for B amplifier
 ASECA   = '[1:1056,1:4612]'    / Section by A amplifier in raw frame
 DSECA   = '[33:1056,1:4612]'   / Image area of A amplifier in raw frame
 TSECA   = '[33:1056,1:4612]'   / Trim section of A amplifier = DSECA
 BSECA   = '[1:32,1:4644]'      / Overscan of A amplifier in raw frame
 CSECA   = '[1:1024,1:4612]'    / Section in full CCD after BSECA cut out
 ASECB   = '[1057:2112,1:4612]' / Section by B amplifier in raw frame
 DSECB   = '[1057:2080,1:4612]' / Image area of B amplifier in raw frame
 TSECB   = '[1057:2080,1:4612]' / Trim section of B amplifier = DSECB
 BSECB   = '[2081:2112,1:4644]' / Overscan of B amplifier in raw frame
 CSECB   = '[1025:2048,1:4612]' / Section in full CCD after BSECB cut out
 CCD     = 'Marconi/EEV CCD42-90'
 CCDNAME = '8351-17-3'          / Name of the CCD (manufacturer reference)
 CCDNICK = 'Rodolphe'           / Nickname of the CCD
 MAXLIN  =                69582 / Level at 1% linearity departure (ADU)
 MAXLINA =                69582 / Level at 1% linearity departure (ADU) - A amp
 MAXLINB =                69582 / Level at 1% linearity departure (ADU) - B amp
 SATURATE=                69582 / Pixel saturation level (ADU)
 GAIN    =               1.5894 / Converting gain (e-/ADU)
 GAINA   =               1.5612 / Converting gain of A amplifier (e-/ADU)
 GAINB   =               1.6176 / Converting gain of B amplifier (e-/ADU)
 RDNOISE =                    3 / Read noise (electrons) = Average [A,B] amps
 RDNOISEA=                    3 / Read noise (electrons) A amplifier
 RDNOISEB=                    4 / Read noise (electrons) B amplifier
 DARKCUR =                  3.0 / Dark current (e-/pixel/hour)
 QEPOINTS= '48%@350 86%@450 83%@550 78%@650 62%@750 38%@850 12%@950' / QE%@wavele
 CONSWV  = 'Not implemented'    / Controller software DSPID and SERNO versions
 DETSTAT = 'temp_status'        / temp_status_comment
 DETTEM  =    -133.000006103516 / Temp. Cold Plate (C)
 INHERIT =                    F / No need to inherit global headers
 TIMESYS = 'Null    '           / Time System for DATExxxx
 OBSTYPE = 'OBJECT  '           / Observation/ Exposure type
 EXPTYPE = 'OBJECT  '           / OBSTYPE is the new name for this
 EXPNUM  =               712672 / CFHT odometer number
 OBSID   =               712672 / CFHT odometer number
 EXPTIME =              300.148 / Measured integration time (seconds)
 EXPREQ  =                  300 / Requested integration time (seconds)
 DARKTIME=               300.00 / Dark current time (seconds)
 ORIGIN  = 'CFHT    '           / Canada-France-Hawaii Telescope
 CRPIX1  =               1066.2 / WCS Coordinate reference pixel
 CRPIX2  =               4633.7 / WCS Coordinate reference pixel
 CD1_1   =            5.194E-05 / WCS Coordinate scale matrix
 CD1_2   =                  0.0 / WCS Coordinate scale matrix
 CD2_1   =                  0.0 / WCS Coordinate scale matrix
 CD2_2   =           -5.194E-05 / WCS Coordinate scale matrix
 INSTRUME= 'MegaPrime'
 INSTMODE= 'Normal  '           / Instrument Mode
 REGMODE = 'Normal  '           / Registration Mode
 RAOFF   =                  0.0 / Right ascension compensation
 DECOFF  =                  0.0 / Declination compensation
 OBJRA   = '16:41:41.44'        / Right ascension of object
 OBJDEC  = '+36:27:37.0'        / Declination of object
 BZERO   =     34634.4400000000 / Zero factor
 BSCALE  =         1.0600000000 / Scale factor
 BIASSEC = '[0:0,0:0]'          / Dual amplifiers readout - see BSECA & BSECB
 SHUTOPEN=               0.0000 / Shutter blade opening time (msec)
 SHUTCLOS=               0.0000 / Shutter blade closing time (msec)
 FILTER  = 'i.MP9701'           / Name of filter in position
 FILTERID=                   25 / Holder ID (see also FILTER)
 QRUNID  = '03AQ06  '           / Q RunID
 QOBSERVE= 'Mary Laychak'       / Name of Q Observer
 QCOORD  = 'Pierre Martin'      / Name of Q Coordinator
 QID     = 30000600000000003295
 QOBSEQID= 10001200000000008004
 QICSEQID= 10001200000000011418
 QOBITER =                    2
 QOFFID  = 10000200000000000574
 REL_DATE= '2004-08-31T00:00:00' / UTC Release Date
 COMMENT
 COMMENT Telescope
 COMMENT ---------
 COMMENT
 TELESCOP= 'CFHT 3.6m'          / Hawaii Big Island, Mauna Kea
 LATITUDE=             19.82610 / Latitude (degrees N)
 LONGITUD=            -155.4708 / Longitude (degrees E)
 TELSTAT = 'Null    '           / Telescope Control System status
 DATE-OBS= '2003-07-31'         / Date at start of observation (UTC)
 UTIME   = '10:03:39.60'        / Time at start of observation (UT)
 UTC-OBS = '10:03:39.60'        / Time at start of observation (UTC)
 MJDATE  =        52851.4192083 / Modified Julian Date at start of observation
 MJD-OBS =        52851.4192083 / Modified Julian Date at start of obs.
 SIDTIME = '20:16:16.37'        / Sidereal time at start of observation
 LST-OBS = '20:16:16.37'        / Sidereal time at start of exposure
 EPOCH   =               2000.0 / Equinox of coordinates
 EQUINOX =               2000.0 / Equinox of coordinates
 RADECSYS= 'FK5     '           / Coordinate system for equinox (FK4/FK5/GAPPT)
 RA      = '16:41:41.19'        / Object right ascension
 DEC     = '36:27:46.9'         / Object declination
 RA_DEG  =            250.42163 / Object right ascension in degrees
 DEC_DEG =            36.463028 / Object declination in degrees
 CRVAL1  =            250.42163 / WCS Ref value (RA in decimal degrees)
 CRVAL2  =            36.463028 / WCS Ref value (DEC in decimal degrees)
 CTYPE1  = 'RA---TAN'           / WCS Coordinate type
 CTYPE2  = 'DEC--TAN'           / WCS Coordinate type
 NGUIDER =                    2 / TCS Number of guiders
 NGUISTAR=                    2 / TCS number of guide stars/probes in use
 GUINAME = 'South field guider (North probe)' / TCS guider name
 GUIEQUIN=               2000.0 / TCS guider equinox
 GUIRADEC= 'FK5     '           / TCS guider system for equinox
 GUIRA   = '16:41:30.97'        / TCS guider right ascension
 GUIDEC  = '35:48:23.3'         / TCS guider declination
 GUIRAPM =                 0.00 / TCS guider right ascension proper motion arcsec
 GUIDECPM=                 0.00 / TCS guider declination proper motion arcsec
 GUIOBJN = 'GSC2.2_N1322132438' / TCS guider object name
 GUIMAGN =                 13.6 / TCS guider object magnitude
 XPROBE  =               -7.965 / Telescope bonnette guide probe X position
 YPROBE  =               14.592 / Telescope bonnette guide probe Y position
 ZPROBE  =              -12.298 / Telescope bonnette guide probe Z position
 GUIFLUX =                -9999 / TCS guider flux
 GUIFWHX =              -9999.9 / TCS guider average x FWHM in pixels
 GUIFWHY =              -9999.9 / TCS guider average y FWHM in pixels
 SKYFLUX =                    0 / TCS total sky flux
 GUINAME1= 'North field guider (South probe)' / TCS guider #1 identification
 GUIEQUI1=               2000.0 / TCS guider #1 equinox
 GUIRADE1= 'FK5     '           / TCS guider #1 system for equinox
 GUIRA1  = '16:41:44.81'        / TCS guider #1 right ascension
 GUIDEC1 = '37:06:43.2'         / TCS guider #1 declination
 GUIRAPM1=                 0.00 / TCS guider #1 right ascen proper motion arcsec
 GUIDEPM1=                 0.00 / TCS guider #1 declination proper motion arcsec
 GUIOBJN1= 'GSC2.2_N1323131114' / TCS guider #1 object name
 GUIMAGN1=                 13.6 / TCS guider #1 object magnitude
 GUIPOSX1=                4.557 / TCS guider #1 probe x position
 GUIPOSY1=                9.370 / TCS guider #1 probe y position
 GUIPOSZ1=              -12.300 / TCS guider #1 probe z position
 GUIFLUX1=                -9999 / TCS guider #1 flux
 GUIFWHX1=              -9999.9 / TCS guider #1 average x FWHM in pixels
 GUIFWHY1=              -9999.9 / TCS guider #1 average y FWHM in pixels
 GUINAME2= 'South field guider (North probe)' / TCS guider #2 identification
 GUIEQUI2=               2000.0 / TCS guider #2 equinox
 GUIRADE2= 'FK5     '           / TCS guider #2 system for equinox
 GUIRA2  = '16:41:30.97'        / TCS guider #2 right ascension
 GUIDEC2 = '35:48:23.3'         / TCS guider #2 declination
 GUIRAPM2=                 0.00 / TCS guider #2 right ascen proper motion arcsec
 GUIDEPM2=                 0.00 / TCS guider #2 declination proper motion arcsec
 GUIOBJN2= 'GSC2.2_N1322132438' / TCS guider #2 object name
 GUIMAGN2=                 13.6 / TCS guider #2 object magnitude
 GUIPOSX2=               -7.965 / TCS guider #2 probe x position
 GUIPOSY2=               14.592 / TCS guider #2 probe y position
 GUIPOSZ2=              -12.298 / TCS guider #2 probe z position
 GUIFLUX2=                -9999 / TCS guider #2 flux
 GUIFWHX2=              -9999.9 / TCS guider #2 average x FWHM in pixels
 GUIFWHY2=              -9999.9 / TCS guider #2 average y FWHM in pixels
 AIRMASS =                1.537 / Airmass at start of observation
 TELALT  =              -9999.9 / Telescope altitude at start of observation, deg
 TELAZ   =              -9999.9 / Telescope azimuth at start of observation, deg
 MOONANGL=              -9999.9 / Angle from object to moon at start in degrees
 FOCUSID = 'MegaPrime'          / Telescope focus in use
 TELCONF = 'MegaPrime'          / Telescope focus in use
 FOCUSPOS=                 1500 / Telescope focus encoder readout
 TELFOCUS=                 1500 / Telescope focus encoder readout
 BONANGLE=                  0.0 / Telescope bonnette rotation angle in degrees
 ROTANGLE=              -9999.9 / Telescope bonnette rotation angle in degrees
 ISUGAIN =                 0.30 / Instrument Stabilization Unit control gain
 ISURATE =                50.00 / ISU control rate in Hz
 ISUTCSOR=                 1.00 / ISU offload rate in Hz to telescope position
 ISUSTATE= 'Full    '           / ISU control state (Off/Only/TCS/Full/Frozen)
 ISUSTDVX=                 0.00 / ISU most recent minute std dev in x in arcsec
 ISUSTDVY=                 0.00 / ISU most recent minute std dev in y in arcsec
 FSAGAIN =                 0.30 / Focus Stage Assembly movement control gain
 FSARATE =                 0.02 / FSA control rate in Hz
 FSATHRES=                0.100 / FSA movement threshold in mm
 FSASTATE= 'None    '           / FSA control state (Off/On/Paused)
 FSANMOVE=                    0 / FSA number of actual moves in last 10 minutes
 FSAMINZ =                0.000 / FSA minimum position in last 10 minutes
 FSAMAXZ =                0.000 / FSA maximum position in last 10 minutes
 FSAMEANZ=                0.000 / FSA mean position in last 10 minutes
 FSASTDVZ=                0.000 / FSA position std dev in last 10 minutes
 RELHUMID=                6.290 / relative humidity, weathertron
 TEA2INCH=                2.780 / temp, air, two inches above fifth floor deg C
 TEA6FOOT=                3.240 / temp, air, six feet above fifth floor deg C
 TEALOWWS=                1.090 / temp, air, dome lower ws side deg C
 TEAPMIRE=                2.430 / temp, air, primary mirror east deg C
 TEAPMIRW=                2.590 / temp, air, primary mirror west deg C
 TEAPMSPN=                173.0 / temp, air, primary mirror spigot north deg C
 TEAPMSPS=                364.6 / temp, air, primary mirror spigot south deg C
 TEATOPOP=                1.060 / temp, air, dome top opposite ws deg C
 TEATOPWS=                2.340 / temp, air, dome top ws side deg C
 TEATRNGE=                3.150 / temp, air, top ring east deg C
 TEATRNGW=                3.950 / temp, air, top ring west deg C
 TEAUMIRE=                2.210 / temp, air, under primary mirror east deg C
 TEAWTHRT=                4.800 / temp, air, weathertron deg C
 TESCONRM=               -4.200 / temp, surface, floor above control room deg C
 TESFELEV=                2.430 / temp, surface, floor by freight elevatr deg C
 TESPIERN=                9999. / temp, surface, floor by north pier deg C
 TESPIERS=                3.230 / temp, surface, floor by south pier deg C
 TESPMIRW=                2.060 / temp, surface, primary mirror west deg C
 WINDDIR =                9.820 / wind direction (N=0 E=90 S=180 W=270)
 WINDSPED=                12.22 / wind speed, weathertron (knots)
 COMMENT
 COMMENT Processing Pipeline
 COMMENT -------------------
 COMMENT
 CRUNID  = '03Am06  '           / Elixir camera run ID
 HISTORY imsplice: FLIPS ver 2.0 - Elixir by CFHT - Thu Jul 31 2003 -  0:34:53
 HISTORY imsplice: Splicing the two readouts (A&B) per CCD into a unique image
 HISTORY imsplice: Splicing results in all detectors as if read from A amplifier
 HISTORY imsplice: NEXTEND keyword updated (/2) = number of CCDs vs. amplifiers
 HISTORY imsplice: EXTNAME keyword becomes `ccdxx` instead of `ampxx`
 HISTORY imsplice: AMPNAME keyword now covers both amplifiers (eg `29a + 29b')
 HISTORY imsplice: keyword {GAIN, RDNOISE, MAXLIN} replaced by two keywords [A,B]
 HISTORY imsplice: DATASEC and DETSEC keywords now reflect the entire CCD
 HISTORY imsplice: BIASSEC becomes irrelevant -> replaced by BSECA & BSECB
 HISTORY imsplice: New keywords are DETSECA, DETSECB, DSECA, DSECB, TSECA, TSECB
 HISTORY imsplice: New keywords are ASECA, ASECB, CSECA, CSECB
 COMMENT Unique detector IDs for MegaCam (North on top, East to the left)
 COMMENT    --------------------------
 COMMENT    ba ba ba ba ba ba ba ba ba
 COMMENT    00 01 02 03 04 05 06 07 08
 COMMENT --------------------------------
 COMMENT ba ba ba ba ba ba ba ba ba ba ba
 COMMENT 36 09 10 11 12 13 14 15 16 17 37
 COMMENT --------------------------------
 COMMENT 38 18 19 20 21 22 23 24 25 26 39
 COMMENT ab ab ab ab ab ab ab ab ab ab ab
 COMMENT --------------------------------
 COMMENT    27 28 29 30 31 32 33 34 35
 COMMENT    ab ab ab ab ab ab ab ab ab
 COMMENT    __________________________
 COMMENT The two upper rows of CCDs are flipped, a=A amp, b=B amp
 HISTORY imred: FLIPS ver 3.0 - Elixir by CFHT - Wed Nov 5 2003 - 14:31:58
 COMMENT imred: Elixir / Flips2 flatten.flips
 HISTORY imred: Input image:  712672o.fits[ccd13]
 HISTORY imred: Output image: 712672p13.det
 HISTORY imred: Camera offset correction with overscan level subtraction
 HISTORY imred: Overscan A amp computed from [1:32,1:4644]      = 1234 ADU
 HISTORY imred: Overscan B amp computed from [2081:2112,1:4644] = 1217 ADU
 HISTORY imred: Overscan model: 1D median Y axis vector in bias section
 HISTORY imred: Mask bad pixels: * 2003A.mask.0.36.00.fits[ccd13]
 HISTORY imred: Bias structures: - 03Am06.bias.0.36.00.fits[ccd13] (mode A_amp=0
 HISTORY imred: Flat-fielding: * 1.0 / 03Am06.flat.i.36.02.fits[ccd13]
 HISTORY imred: Normalized flat-field (ref. scaling factor= 1.1)
 HISTORY imred: Preserving dynamic: stretching 65K ADU range by 1.063 (BSCALe)
 IMRED_DT= 'FLIPS ver 3.0 - Elixir by CFHT - Wed Nov 5 2003 - 14:31:58' / Date
 IMRED_IF= '712672o.fits[ccd13]' / Input file to process by imred
 IMRED_OF= '712672p13.det'      / Output file resulting from the process by imred
 IMRED_OP= 'MASK_BP + OVERSCAN + BIAS + FLAT-FIELD' / Operation(s)
 IMRED_MK= '2003A.mask.0.36.00.fits[ccd13]' / Mask of bad pixels (0/1) input file
 IMRED_OV= '1DYMODEL_OVERSCAN'  / Type of overscan level correction
 IMRED_BS= '03Am06.bias.0.36.00.fits[ccd13]' / Bias frame input file
 IMRED_FF= '03Am06.flat.i.36.02.fits[ccd13]' / Flat-field frame input file
 IMRED_NF=                    T / Normalized flat-field
 IMRED_SF=          1.063288212 / Output file dynamic stretching factor (BSCALe)
 HISTORY imcombred: FLIPS ver 3.0 - Elixir by CFHT - Wed Nov 5 2003 - 14:37:29
 COMMENT imcombred: Elixir Defringing
 HISTORY imcombred: Output image: 712672p13.def (16 bits)
 HISTORY imcombred: Fringing correction: scaled difference of 2 images
 HISTORY imcombred: Thresholding inputs from -100.00 to 130000.00 ADUs
 HISTORY imcombred: Fringe image correction: mode offsetting + fringe rescaling
 HISTORY imcombred: 712672p13.det 1960 1.000
 HISTORY imcombred: 03Am06.fringe.i.36.01.fits[ccd13] 2860 3.255
 IMCMB_DT= 'FLIPS ver 3.0 - Elixir by CFHT - Wed Nov 5 2003 - 14:37:29' / Date
 IMCMB_AL= 'SD      '           / CCD or SIGMA clipping, Scaled or Weighted Diff.
 IMCMB_CA= 'SCALED_DIFFERENCE'  / Combining algorithm on final stack
 IMCMB_FT= 'DEFRINGE_SCIENCE'   / Stacked frame type
 IMCMB_OP= 'MODE_OFFSETING + FRINGE_RESCALING' / Input operations
 IMCMB_NI=                    2 / Number of input files
 IMCMB_DA=                    F / Dual amplifier A,B (IMCMB_XX list format)
 IMCMB_IF= 'NAME BIAS MODE SCALING' / Input file parameters
 IMCMB_00= '712672p13.det 0 1960 1.000' / Input file stats
 IMCMB_01= '03Am06.fringe.i.36.01.fits[ccd13] 0 2860 3.255' / Input file stats
 COMMENT  --------------- Elixir Analysis ---------------
 COMMENT  Elixir: processing performed @ CFHT, version 2.0
 COMMENT  Elixir: version: 2.0
 COMMENT  Elixir: processing date: 2003-11-05T14:56:45
 COMMENT  Elixir: website: http://www.cfht.hawaii.edu/Instruments/Elixir
 COMMENT  Elixir: email: elixir@cfht.hawaii.edu
 COMMENT  Elixir: team: Eugene Magnier & Jean-Charles Cuillandre
 DATEPROC= '2003-11-05T14:56:45' / Processing Date
 EL_SYS  = '2.0               ' / Elixir System Version
 COMMENT  Elixir:  no astrometry solution for this image
 PHOT_C  =              25.7150 / Elixir zero point - measured for camera run
 PHOT_CS =               0.0048 / Elixir zero point - scatter
 PHOT_NS =                   19 / Elixir zero point - N stars
 PHOT_NM =                    5 / Elixir zero point - N images
 PHOT_C0 =              25.7430 / Elixir zero point - nominal
 PHOT_X  =               0.0830 / Elixir zero point - color term
 PHOT_K  =              -0.0400 / Elixir zero point - airmass term
 PHOT_C1 = 'r_SDSS            ' / Elixir zero point - color 1
 PHOT_C2 = 'i_SDSS            ' / Elixir zero point - color 2
 COMMENT   Photometric Analysis is incomplete for this image.
 COMMENT   MAG_SAT and MAG_LIM cannot be determined.
 COMMENT   Formula for Photometry, based on keywords given in this header:
 COMMENT   m = -2.5*log(DN) + 2.5*log(EXPTIME)
 COMMENT   M = m + PHOT_C + PHOT_K*(AIRMASS - 1) + PHOT_X*(PHOT_C1 - PHOT_C2)
 COMMENT  --------------- Elixir Analysis (end) ---------------
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 UNSIGN  =                    F /
 COMMENT  SVD Mode map applied using Elixir demodemap 2.0.0
 COMMENT  SVD Mode file: 2003A-mode-v2.modes.i.36.01.fits
 MODE_IN =                      / SVD Mode file
 MODE_N  =                    8 / Number of SVD Modes
 MODE_0  =     -1540.2098900000 / Amplitude of SVD Mode 0
 MODE_1  =        81.1006085000 / Amplitude of SVD Mode 1
 MODE_2  =         0.0000000000 / Amplitude of SVD Mode 2
 MODE_3  =         0.0000000000 / Amplitude of SVD Mode 3
 MODE_4  =         0.0000000000 / Amplitude of SVD Mode 4
 MODE_5  =         0.0000000000 / Amplitude of SVD Mode 5
 MODE_6  =         0.0000000000 / Amplitude of SVD Mode 6
 MODE_7  =         0.0000000000 / Amplitude of SVD Mode 7
 END
 

3. Differences between the two headers
 < FILENAME= '712672o'            / Current filename after processing
 ---
 > FILENAME= '712672p13.def'      / Current filename after processing
 
 < COMMENT
 ---
 > COMMENT  Fully Characterized and Analysed by Elixir @ CFHT
 
 < AMPLIST = 'A B     '           / List of amplifiers for this CCD
 ---
 > AMPLIST = 'A       '           / Data are now as if CCD read from A amp
 
 > IMMODE  =                 1929 / Imaging area mode
 > FLATSCAL=          0.000000000 / Mosaic flat-field scaling factor
 > IMMODEA =                 1957 / Imaging area mode for A amplifier
 > IMMODEB =                 1957 / Imaging area mode for B amplifier
 
 < MAXLIN  =                65535 / Level at 1% linearity departure (ADU) = Average
 < MAXLINA =                65535 / Level at 1% linearity departure (ADU) A amp
 < MAXLINB =                65535 / Level at 1% linearity departure (ADU) B amp
 < SATURATE=                65535 / Saturation value (ADU)
 < GAIN    =               1.6900 / Converting gain (e-/ADU) = Average [A,B] amps
 < GAINA   =               1.6600 / Converting gain of A amplifier (e-/ADU)
 < GAINB   =               1.7200 / Converting gain of B amplifier (e-/ADU)
 ---
 > MAXLIN  =                69582 / Level at 1% linearity departure (ADU)
 > MAXLINA =                69582 / Level at 1% linearity departure (ADU) - A amp
 > MAXLINB =                69582 / Level at 1% linearity departure (ADU) - B amp
 > SATURATE=                69582 / Pixel saturation level (ADU)
 > GAIN    =               1.5894 / Converting gain (e-/ADU)
 > GAINA   =               1.5612 / Converting gain of A amplifier (e-/ADU)
 > GAINB   =               1.6176 / Converting gain of B amplifier (e-/ADU)
 
 < BZERO   =              32768.0 / Zero factor
 < BSCALE  =                  1.0 / Scale factor
 ---
 > BZERO   =     34634.4400000000 / Zero factor
 > BSCALE  =         1.0600000000 / Scale factor
 
 > HISTORY imred: FLIPS ver 3.0 - Elixir by CFHT - Wed Nov 5 2003 - 14:31:58
 > COMMENT imred: Elixir / Flips2 flatten.flips
 > HISTORY imred: Input image:  712672o.fits[ccd13]
 > HISTORY imred: Output image: 712672p13.det
 > HISTORY imred: Camera offset correction with overscan level subtraction
 > HISTORY imred: Overscan A amp computed from [1:32,1:4644]      = 1234 ADU
 > HISTORY imred: Overscan B amp computed from [2081:2112,1:4644] = 1217 ADU
 > HISTORY imred: Overscan model: 1D median Y axis vector in bias section
 > HISTORY imred: Mask bad pixels: * 2003A.mask.0.36.00.fits[ccd13]
 > HISTORY imred: Bias structures: - 03Am06.bias.0.36.00.fits[ccd13] (mode A_amp=0
 > HISTORY imred: Flat-fielding: * 1.0 / 03Am06.flat.i.36.02.fits[ccd13]
 > HISTORY imred: Normalized flat-field (ref. scaling factor= 1.1)
 > HISTORY imred: Preserving dynamic: stretching 65K ADU range by 1.063 (BSCALe)
 > IMRED_DT= 'FLIPS ver 3.0 - Elixir by CFHT - Wed Nov 5 2003 - 14:31:58' / Date
 > IMRED_IF= '712672o.fits[ccd13]' / Input file to process by imred
 > IMRED_OF= '712672p13.det'      / Output file resulting from the process by imred
 > IMRED_OP= 'MASK_BP + OVERSCAN + BIAS + FLAT-FIELD' / Operation(s)
 > IMRED_MK= '2003A.mask.0.36.00.fits[ccd13]' / Mask of bad pixels (0/1) input file
 > IMRED_OV= '1DYMODEL_OVERSCAN'  / Type of overscan level correction
 > IMRED_BS= '03Am06.bias.0.36.00.fits[ccd13]' / Bias frame input file
 > IMRED_FF= '03Am06.flat.i.36.02.fits[ccd13]' / Flat-field frame input file
 > IMRED_NF=                    T / Normalized flat-field
 > IMRED_SF=          1.063288212 / Output file dynamic stretching factor (BSCALe)
 > HISTORY imcombred: FLIPS ver 3.0 - Elixir by CFHT - Wed Nov 5 2003 - 14:37:29
 > COMMENT imcombred: Elixir Defringing
 > HISTORY imcombred: Output image: 712672p13.def (16 bits)
 > HISTORY imcombred: Fringing correction: scaled difference of 2 images
 > HISTORY imcombred: Thresholding inputs from -100.00 to 130000.00 ADUs
 > HISTORY imcombred: Fringe image correction: mode offsetting + fringe rescaling
 > HISTORY imcombred: 712672p13.det 1960 1.000
 > HISTORY imcombred: 03Am06.fringe.i.36.01.fits[ccd13] 2860 3.255
 > IMCMB_DT= 'FLIPS ver 3.0 - Elixir by CFHT - Wed Nov 5 2003 - 14:37:29' / Date
 > IMCMB_AL= 'SD      '           / CCD or SIGMA clipping, Scaled or Weighted Diff.
 > IMCMB_CA= 'SCALED_DIFFERENCE'  / Combining algorithm on final stack
 > IMCMB_FT= 'DEFRINGE_SCIENCE'   / Stacked frame type
 > IMCMB_OP= 'MODE_OFFSETING + FRINGE_RESCALING' / Input operations
 > IMCMB_NI=                    2 / Number of input files
 > IMCMB_DA=                    F / Dual amplifier A,B (IMCMB_XX list format)
 > IMCMB_IF= 'NAME BIAS MODE SCALING' / Input file parameters
 > IMCMB_00= '712672p13.det 0 1960 1.000' / Input file stats
 > IMCMB_01= '03Am06.fringe.i.36.01.fits[ccd13] 0 2860 3.255' / Input file stats
 > COMMENT  --------------- Elixir Analysis ---------------
 > COMMENT  Elixir: processing performed @ CFHT, version 2.0
 > COMMENT  Elixir: version: 2.0
 > COMMENT  Elixir: processing date: 2003-11-05T14:56:45
 > COMMENT  Elixir: website: http://www.cfht.hawaii.edu/Instruments/Elixir
 > COMMENT  Elixir: email: elixir@cfht.hawaii.edu
 > COMMENT  Elixir: team: Eugene Magnier & Jean-Charles Cuillandre
 > DATEPROC= '2003-11-05T14:56:45' / Processing Date
 > EL_SYS  = '2.0               ' / Elixir System Version
 > COMMENT  Elixir:  no astrometry solution for this image
 > PHOT_C  =              25.7150 / Elixir zero point - measured for camera run
 > PHOT_CS =               0.0048 / Elixir zero point - scatter
 > PHOT_NS =                   19 / Elixir zero point - N stars
 > PHOT_NM =                    5 / Elixir zero point - N images
 > PHOT_C0 =              25.7430 / Elixir zero point - nominal
 > PHOT_X  =               0.0830 / Elixir zero point - color term
 > PHOT_K  =              -0.0400 / Elixir zero point - airmass term
 > PHOT_C1 = 'r_SDSS            ' / Elixir zero point - color 1
 > PHOT_C2 = 'i_SDSS            ' / Elixir zero point - color 2
 > COMMENT   Photometric Analysis is incomplete for this image.
 > COMMENT   MAG_SAT and MAG_LIM cannot be determined.
 > COMMENT   Formula for Photometry, based on keywords given in this header:
 > COMMENT   m = -2.5*log(DN) + 2.5*log(EXPTIME)
 > COMMENT   M = m + PHOT_C + PHOT_K*(AIRMASS - 1) + PHOT_X*(PHOT_C1 - PHOT_C2)
 > COMMENT  --------------- Elixir Analysis (end) ---------------
 > UNSIGN  =                    F /
 > COMMENT  SVD Mode map applied using Elixir demodemap 2.0.0
 > COMMENT  SVD Mode file: 2003A-mode-v2.modes.i.36.01.fits
 > MODE_IN =                      / SVD Mode file
 > MODE_N  =                    8 / Number of SVD Modes
 > MODE_0  =     -1540.2098900000 / Amplitude of SVD Mode 0
 > MODE_1  =        81.1006085000 / Amplitude of SVD Mode 1
 > MODE_2  =         0.0000000000 / Amplitude of SVD Mode 2
 > MODE_3  =         0.0000000000 / Amplitude of SVD Mode 3
 > MODE_4  =         0.0000000000 / Amplitude of SVD Mode 4
 > MODE_5  =         0.0000000000 / Amplitude of SVD Mode 5
 > MODE_6  =         0.0000000000 / Amplitude of SVD Mode 6
 > MODE_7  =         0.0000000000 / Amplitude of SVD Mode 7