origin,s,h,"ASC",,,"Source of FITS file" creator,s,h,"acis_process_events - Version DS 8.5",,,"tool that created this output" ascdsver,s,h,"10.2.4",,,"Processing system revision" asolfile,s,h,"pcadf525326968N001_asol1.fits",,,"" thrfile,s,h,"acisD2005-07-01evtspltN0002.fits",,,"" tlmver,s,h,"P011",,,"Telemetry revision number (IP&CL)" revision,i,h,1,,,"Processing version of data" checksum,s,h,"2AaG32SG28YG28YG",,,"HDU checksum updated 2014-08-27T15:27:06" datasum,s,h,"3630609998",,,"data unit checksum updated 2014-08-27T13:43:56" content,s,h,"EVT1",,,"What data product" hduspec,s,h,"ACIS Telemetry Products: Level 0 to ASC Archive ICD Rev 2.11",,,"ICD r" hdudoc,s,h,"ASC-FITS-2.0: McDowell, Rots: ASC FITS File Designers Guide",,,"" hduvers,s,h,"1.0.0",,,"" hduclass,s,h,"OGIP",,,"" hduclas1,s,h,"EVENTS",,,"" hduclas2,s,h,"ALL",,,"" pix_adj,s,h,"NONE",,,"Subpixel adjustment algorithm" rand_sky,r,h,0.0,,,"" subpixfl,s,h,"NONE",,,"" rand_pi,r,h,1.0,,,"" date,s,h,"2014-08-27T13:13:44",,,"Date and time of file creation" mjd_obs,r,h,56894.166767886,,,"Modified Julian date of observation" ds_ident,s,h,"ADS/Sa.CXO#obs/16209",,,"dataset identifier" date-obs,s,h,"2014-08-25T04:00:08",,,"Observation start date" date-end,s,h,"2014-08-26T23:54:20",,,"Observation end date" timesys,s,h,"TT",,,"Time system" mjdref,r,h,50814.0,,,"MJD zero point for times [d]" timezero,r,h,0.0,,,"Clock correction [s]" timeunit,s,h,"s",,,"Time unit" btimnull,r,h,519248689.35882,,,"Basic Time offset (s)" btimrate,r,h,0.25625001416004,,,"Basic Time clock rate (s / VCDUcount)" btimdrft,r,h,2.5161766715743e-18,,,"Basic Time clock drift (s / VCDUcount^2)" btimcorr,r,h,0.0,,,"Correction applied to Basic Time rate (s)" timeref,s,h,"LOCAL",,,"Time reference (barycenter/local)" tassign,s,h,"SATELLITE",,,"Time assigned by clock" clockapp,b,h,yes,,,"default" tierrela,r,h,1.0e-09,,,"default" tierabso,r,h,5.0e-05,,,"default" timversn,s,h,"ASC-FITS-2",,,"Timing system definition" tstart,r,h,525326408.74537,,,"Observation start time (MET) [s]" tstop,r,h,525484460.16664,,,"Observation end time (MET) [s]" obs_mode,s,h,"POINTING",,,"Observation mode" startmjf,i,h,54233,,,"Major frame ctr value at start of data" startmnf,i,h,100,,,"Start minor frame ctr at start of data" startobt,r,h,0.0,,,"On-Board MET close to STARTMJF and STARTMNF" stopmjf,i,h,59036,,,"Major frame ctr value at stop of data" stopmnf,i,h,32,,,"Stop minor frame ctr at end of data" timepixr,r,h,0.5,,,"default" dataclas,s,h,"OBSERVED",,,"default" radesys,s,h,"ICRS",,,"default" timedel,r,h,0.00285,,,"timedel Lev1 [s]" mission,s,h,"AXAF",,,"Mission" telescop,s,h,"CHANDRA",,,"Telescope" sim_x,r,h,-0.68282252473119,,,"SIM focus pos [mm]" sim_y,r,h,0.0,,,"SIM orthogonal axis pos [mm]" sim_z,r,h,-183.99005082226,,,"SIM translation stage pos [mm]" foc_len,r,h,10070.0,,,"HRMA focal length [mm]" instrume,s,h,"ACIS",,,"Instrument" grating,s,h,"HETG",,,"Grating" detnam,s,h,"ACIS-456789",,,"Detector" ra_pnt,r,h,279.99610897119,,,"Pointing RA [deg]" dec_pnt,r,h,5.0471767091961,,,"Pointing Dec [deg]" roll_pnt,r,h,253.38182067121,,,"Pointing Roll [deg]" ra_targ,r,h,279.99,,,"Observer's specified target RA [deg]" dec_targ,r,h,5.036,,,"Observer's specified target Dec [deg]" defocus,r,h,0.0014449365687057,,,"SIM defocus [mm]" ra_nom,r,h,279.99610897119,,,"Nominal RA [deg]" dec_nom,r,h,5.0471767091961,,,"Nominal Dec [deg]" roll_nom,r,h,253.38182067121,,,"Nominal Roll [deg]" readmode,s,h,"CONTINUOUS",,,"Read mode" acsys1,s,h,"CHIP:AXAF-ACIS-1.0",,,"reference for chip coord system" acsys2,s,h,"TDET:ACIS-2.2",,,"reference for tiled detector coord system" acsys3,s,h,"DET:ASC-FP-1.1",,,"reference for focal plane coord system" acsys4,s,h,"SKY:ASC-FP-1.1",,,"reference for sky coord system" gainfile,s,h,"acisD2000-01-29gain_ctiN0005.fits",,,"" cti_corr,b,h,yes,,,"" cti_app,s,h,"PPPPPNPNPP",,,"" ctifile,s,h,"acisD2002-08-01ctiN0005B.fits",,,"" mtlfile,s,h,"acisf16209_000N001_fptemp_egti1.fits",,,"" grdimgfl,s,h,"acisD2000-01-29grdimgN0001.fits",,,"" tgaincor,s,h,"T",,,"" tgainfil,s,h,"acisD2014-02-01t_gainN0002.fits",,,"" grd_file,s,h,"acisD1996-11-01gradeN0004.fits",,,"" corners,i,h,1,,,"num adjacent side pix > threshold to include co" gradesys,s,h,"ASCA",,,"grade system: ASCA, ACIS, or USER" bpixfile,s,h,"acisf16209_000N001_bpix1.fits",,,"" datamode,s,h,"CC33_GRADED",,,"Data mode" run_id,i,h,1,,,"Science run index" fsw_vers,i,h,53,,,"ACIS flight software version number" startbep,i,h,437671948,,,"BEP timer value at TSTART" stopbep,i,h,3269521420,,,"BEP timer value at TSTOP" fep_id,i,h,0,,,"Front End Processor ID: 0-5" ccd_id,i,h,4,,,"CCD ID: 0-9" histnum,i,h,460,,,"" title,s,h,"A Definitive Test of Relativistic Disk Lines in Neutron Stars",,,"Prop" observer,s,h,"Dr. Edward Cackett",,,"Principal investigator" object,s,h,"Serpens X-1",,,"Source name" obs_id,s,h,"16209",,,"Observation id" obi_num,i,h,0,,,"Obi number" seq_num,s,h,"401603",,,"Sequence number" ontime,r,h,157160.55701894,,,"Sum of GTIs [s]" ontime7,r,h,157160.55701894,,,"Sum of GTIs [s]" ontime4,r,h,157160.55712068,,,"Sum of GTIs [s]" ontime5,r,h,157160.55706704,,,"Sum of GTIs [s]" ontime6,r,h,157160.55705291,,,"Sum of GTIs [s]" ontime8,r,h,157160.55698454,,,"Sum of GTIs [s]" ontime9,r,h,157162.01626211,,,"Sum of GTIs [s]" livetime,r,h,156546.64859308,,,"Livetime [s]" livtime7,r,h,156546.64859308,,,"Livetime [s]" livtime4,r,h,156546.64869443,,,"Livetime [s]" livtime5,r,h,156546.64864099,,,"Livetime [s]" livtime6,r,h,156546.64862692,,,"Livetime [s]" livtime8,r,h,156546.64855882,,,"Livetime [s]" livtime9,r,h,156548.10213609,,,"Livetime [s]" exposure,r,h,156546.64859308,,,"Exposure time [s]" exposur7,r,h,156546.64859308,,,"Exposure time [s]" exposur4,r,h,156546.64869443,,,"Exposure time [s]" exposur5,r,h,156546.64864099,,,"Exposure time [s]" exposur6,r,h,156546.64862692,,,"Exposure time [s]" exposur8,r,h,156546.64855882,,,"Exposure time [s]" exposur9,r,h,156548.10213609,,,"Exposure time [s]" dtcor,r,h,0.99609375,,,"Dead time correction" hduclas3,s,h,"CC_CORRECTED",,,"" asptype,s,h,"KALMAN",,,"" fp_temp,r,h,154.73605347,,,"Focal Plane Temperature [K]" aimpfile,s,h,"telD1999-07-23aimptsN0002.fits",,,"" geomfile,s,h,"telD1999-07-23geomN0006.fits",,,"" skyfile,s,h,"telD1999-07-23skyN0002.fits",,,"" tdetfile,s,h,"telD1999-07-23tdetN0001.fits",,,"" shellfil,s,h,"telD1999-07-23sgeomN0001.fits",,,"" fltfile,s,h,"acisf16209_000N001_flt1.fits",,,"" maskfile,s,h,"acisf16209_000N001_msk1.fits",,,"" pbkfile,s,h,"acisf525327071N001_pbk0.fits",,,"" dy_avg,r,h,1.0563339255,,,"Mean DY during observation [mm]" dz_avg,r,h,0.91977176886,,,"Mean DZ during observation [mm]" dth_avg,r,h,-0.0029890595132,,,"Mean DTHETA during observation [deg]" oclkpair,i,h,8,,,"# of pairs of overclock pixels per output" orc_mode,i,h,0,,,"Output register clocking mode" sum_2x2,i,h,0,,,"On-chip summing. 0:None; 1:Sum 2x2" fep_ccd,s,h,"475689",,,"CCD to FEPID mapping, fep0 is left most digit" caldbver,s,h,"4.6.2",,,""