SIMPLE = T / file does conform to FITS standard BITPIX = 16 / number of bits per data pixel NAXIS = 0 / number of data axes EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H HDUNAME = 'PRIMARY ' / ASCDM block name LONGSTRN= 'OGIP 1.0' / The HEASARC Long String Convention may be used.COMMENT This FITS file may contain long string keyword values that are COMMENT continued over multiple keywords. The HEASARC convention uses the & COMMENT character at the end of each substring which is then continued COMMENT on the next keyword which has the name CONTINUE. ORIGIN = 'ASC ' / Source of FITS file CREATOR = 'mkarf v0.6.2-0' / Program creating this file MJD_OBS = 5.1463431318968E+04 / Modified Julian date of observation DS_IDENT= 'ADS/Sa.CXO#obs/00018' / dataset identifier CHECKSUM= 'jhZHlgZFjgZFjgZF' / HDU checksum updated 2012-02-21T15:30:05 DATASUM = ' ' / data unit checksum updated 2012-02-21T15:29:58 DATE = '2012-02-21T15:30:05' / Date and time of file creation DATE-OBS= '1999-10-12T10:21:05' / Observation start date DATE-END= '1999-10-13T00:53:11' / Observation end date TIMESYS = 'TT ' / Time system MJDREF = 5.0814000000000E+04 / MJD zero point for times TIMEZERO= 0.0000000000000E+00 / Clock correction TIMEUNIT= 's ' / Time unit CLOCKAPP= T / default DETNAM = 'ACIS-0 ' / ACIS-I0 FILTER = ' ' GRATING = 'NONE ' CYCLE = 'P ' / events from which exps? Prim/Second/Both SIM_X = -7.8090834371673E-01 / [mm] SIM offset SIM_Y = 0.0000000000000E+00 / [mm] SIM offset SIM_Z = -2.3358743446083E+02 / [mm] SIM offset TSTART = 5.6110865958828E+07 / Observation start time TSTOP = 5.6163191698213E+07 / Observation end time MISSION = 'AXAF ' / Mission TELESCOP= 'CHANDRA ' / Telescope Used INSTRUME= 'ACIS ' / Instrument OBS_ID = '18 ' / Observation id SEQ_NUM = '200016 ' / Sequence number END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 12 / width of table in bytes NAXIS2 = 1070 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 3 / number of fields in each row EXTNAME = 'SPECRESP' / Imaging ARF HDUNAME = 'SPECRESP' / ASCDM block name CONTENT = 'SPECRESP' HDUVERS = '1.1.0 ' HDUCLASS= 'OGIP ' HDUCLAS1= 'RESPONSE' HDUCLAS2= 'SPECRESP' HDUVERS1= '1.0.0 ' / Obsolete Keyword HDUVERS2= '1.1.0 ' / Obsolete Keyword ARFVERSN= '1992a ' / Obsolete Keyword TTYPE1 = 'ENERG_LO' / Energy TFORM1 = '1E ' / format of field TUNIT1 = 'keV ' TLMIN1 = 0.0000000E+00 TLMAX1 = 2.0000000E+01 TTYPE2 = 'ENERG_HI' / Effective Area TFORM2 = '1E ' / format of field TUNIT2 = 'keV ' TLMIN2 = 0.0000000E+00 TLMAX2 = 2.0000000E+01 TTYPE3 = 'SPECRESP' / Effective Area TFORM3 = '1E ' / format of field TUNIT3 = 'cm**2 ' LONGSTRN= 'OGIP 1.0' / The HEASARC Long String Convention may be used.COMMENT This FITS file may contain long string keyword values that are COMMENT continued over multiple keywords. The HEASARC convention uses the & COMMENT character at the end of each substring which is then continued COMMENT on the next keyword which has the name CONTINUE. ORIGIN = 'ASC ' / Source of FITS file CREATOR = 'mkarf v0.6.2-0' / Program creating this file ASCDSVER= 'CIAO 4.3' / ASCDS version number MJD_OBS = 5.1463431318968E+04 / Modified Julian date of observation DS_IDENT= 'ADS/Sa.CXO#obs/00018' / dataset identifier REVISION= 4 / Processing version of data CHECKSUM= 'jX6gjX3ZjX3fjX3Z' / HDU checksum updated 2012-02-21T15:30:05 DATASUM = '773018091' / data unit checksum updated 2012-02-21T15:30:05 RAND_SKY= 5.0000000000000E-01 RAND_PI = 1.0000000000000E+00 EQUINOX = 2.0000000000000E+03 / default DATE = '2012-02-21T15:30:05' / Date and time of file creation DATE-OBS= '1999-10-12T10:21:05' / Observation start date OBS_MODE= 'POINTING' / Observation mode DATE-END= '1999-10-13T00:53:11' / Observation end date TIMESYS = 'TT ' / Time system MJDREF = 5.0814000000000E+04 / MJD zero point for times TIMEZERO= 0.0000000000000E+00 / Clock correction TIMEUNIT= 's ' / Time unit BTIMNULL= 5.4803140161761E+07 / Basic Time offset (s) DATACLAS= 'OBSERVED' / default BTIMRATE= 2.5625000921849E-01 / Basic Time clock rate (s / VCDUcount) BTIMDRFT= 1.7286159064283E-18 / Basic Time clock drift (s / VCDUcount^2) FILTER = 'NONE ' / QE includes all filters RESPFILE= '0.3:11.0:0.01' / RMF File ASPFILE = '../../acisf00018/products/aux/asphist_0.fits.gz' / Aspect Histogram FBTIMCORR= 0.0000000000000E+00 / Correction applied to Basic Time rate (s) TIMEREF = 'LOCAL ' / Time reference (barycenter/local) TASSIGN = 'SATELLITE' / Time assigned by clock CLOCKAPP= T / default SIM_X = -7.8090834371673E-01 / [mm] SIM offset SIM_Y = 0.0000000000000E+00 / [mm] SIM offset SIM_Z = -2.3358743446083E+02 / [mm] SIM offset FOC_LEN = 1.0070000000000E+04 / HRMA focal length (mm) TIERRELA= 1.0000000000000E-09 / default TIERABSO= 5.0000000000000E-05 / default TIMVERSN= 'ASC-FITS-2' / Timing system definition TSTART = 5.6110865958828E+07 / Observation start time GRATING = 'NONE ' / Grating DETNAM = 'ACIS-0 ' / ACIS-I0 RA_PNT = 8.3815410390113E+01 / Pointing RA DEC_PNT = -5.3844436012454E+00 / Pointing Dec ROLL_PNT= 7.9991212580123E+01 / Pointing Roll RA_TARG = 8.3812500000000E+01 / Observer's specified target RA DEC_TARG= -5.3888890000000E+00 / Observer's specified target Dec DEFOCUS = 1.4398718632593E-03 / SIM defocus (mm) RA_NOM = 8.3815410390113E+01 / Nominal RA DEC_NOM = -5.3844436012454E+00 / Nominal Dec ROLL_NOM= 7.9991212580123E+01 / Nominal Roll TSTOP = 5.6163191698213E+07 / Observation end time STARTOBT= 0.0000000000000E+00 / On-Board MET close to STARTMJF and STARTMNF TIMEPIXR= 5.0000000000000E-01 / default TIMEDEL = 3.2410400000000E+00 / timedel Lev1 (in seconds) CTI_CORR= F CTI_APP = 'NNNNNNNNNN' MISSION = 'AXAF ' / Mission TELESCOP= 'CHANDRA ' / Telescope Used INSTRUME= 'ACIS ' / Instrument FRACEXPO= 9.6578453868907E-01 / Effective fractional exposure READMODE= 'TIMED ' / Read mode DATAMODE= 'FAINT ' / Data mode FLSHTIME= 0.0000000000000E+00 / Inferred duration of each flush. (s) CYCLE = 'P ' / events from which exps? Prim/Second/Both TITLE = 'YOUNG STARS IN THE ORION TRAPEZIUM CLUSTER' / Proposal title OBSERVER= 'Prof Gordon Garmire' / Principal investigator OBJECT = 'TRAPEZIUM CLUSTER' / Source name OBS_ID = '18 ' / Observation id SEQ_NUM = '200016 ' / Sequence number ONTIME = 4.7223525518790E+04 / [s] Sum of GTIs ONTIME0 = 4.7223525518790E+04 / [s] Sum of GTIs LIVETIME= 4.6625552804078E+04 / [s] Livetime LIVTIME0= 4.6625552804078E+04 / [s] Livetime EXPOSURE= 4.6662069648802E+04 / [secs] Total exposure time EXPOSUR0= 4.6625552804078E+04 / [s] Exposure time DTCOR = 9.8733739787229E-01 / Dead time correction ASPTYPE = 'KALMAN ' FP_TEMP = 1.6395204163000E+02 / [K] Focal Plane Temperature RADESYS = 'ICRS ' / default HISTORY ----------------------------------------------------------------- HISTORY MKARF Processing History HISTORY ----------------------------------------------------------------- HISTORY Startup Directory: /xassist/data/pipeline4/chandra/18/acisf00018/productHISTORY s HISTORY Cmd Line: mkarf @@/tmp/tmpXcnveU.par mode=hl HISTORY Parameter file used: /tmp/tmpXcnveU.par HISTORY Detector Mask File: ../../acisf00018/data/aux/acisf00018_001N004_msk1.fiHISTORY ts.gz HISTORY Source SKY position: (3778.45,4458.39) HISTORY ---------------------------------------------------------------------- HISTORY ARDLIB History Records HISTORY ---------------------------------------------------------------------- HISTORY ARDLIB Version: 0.8.5 HISTORY File used for CALDB info: ../../acisf00018/products/events/fullrun_ccd0_HISTORY acisf00018_pi14-548_pass1_cl_src5_src.evt.gz HISTORY Parameter file: /opt/ciao-4.3/param/ardlib.par HISTORY ACIS QE File: /opt/ciao-4.3/CALDB/data/chandra/acis/qe/acisD1997-04-17qeHISTORY N0006.fits[1] HISTORY ACIS Uniformity File: /opt/ciao-4.3/CALDB/data/chandra/acis/qeu/acisD199HISTORY 9-09-16qeuN0002.fits[1] HISTORY ACIS Contamination File: /opt/ciao-4.3/CALDB/data/chandra/acis/contam/acHISTORY isD1999-08-13contamN0006.fits[1] HISTORY ACIS 0 Badpix File: /opt/ciao-4.3/CALDB/data/chandra/acis/badpix/acisD19HISTORY 99-09-16badpixN0002.fits[1] HISTORY Vignetting File: /opt/ciao-4.3/CALDB/data/chandra/default/vignet/hrmaD19HISTORY 96-12-20vignetN0003.fits[1] HISTNUM = 22 HISTORY Onaxis Area File: /opt/ciao-4.3/CALDB/data/chandra/default/axeffa/hrmaD1HISTORY 996-12-20axeffaN0008.fits[1] HISTORY ---------------------------------------------------------------------- HISTORY ---------------------------------------------------------------------- HISTORY PIXLIB History Records HISTORY ---------------------------------------------------------------------- HISTORY PIXLIB Version: 4.0.0 HISTORY ****** PIXLIB Parameter File ***** HISTORY /opt/ciao-4.3/param/geom.par: HISTORY instruments = /opt/ciao-4.3/CALDB/data/chandra/default/geom/telD1999-07HISTORY -23geomN0006.fits(CALDB) HISTORY aimpoints = /opt/ciao-4.3/CALDB/data/chandra/default/aimpts/telD1999-HISTORY 07-23aimptsN0002.fits(CALDB) HISTORY tdet = 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