origin,s,h,"ASC",,,"Source of FITS file" creator,s,h,"acis_process_events - Version DS10.9",,,"tool that created this output" ascdsver,s,h,"10.9.2",,,"Processing system revision" asolfile,s,h,"pcadf02700_000N001_asol1.fits",,,"" thrfile,s,h,"acisD1996-11-01evtspltN0002.fits",,,"" tlmver,s,h,"P014",,,"Telemetry revision number (IP&CL)" revision,i,h,5,,,"Processing version of data" checksum,s,h,"lXeBlUcAlUcAlUcA",,,"HDU checksum updated 2021-03-22T10:35:34" datasum,s,h,"794239097",,,"data unit checksum updated 2021-03-22T10:23:57" 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,"2021-03-22T10:15:53",,,"Date and time of file creation" mjd-obs,r,h,52211.049851747,,,"Modified Julian date of observation" date-obs,s,h,"2001-10-29T01:11:47",,,"Observation start date" date-end,s,h,"2001-10-29T09:49:46",,,"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,118815200.32835,,,"Basic Time offset (s)" btimrate,r,h,0.25625001016923,,,"Basic Time clock rate (s / VCDUcount)" btimdrft,r,h,1.705084185219e-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,120705107.1909,,,"Observation start time (MET) [s]" tstop,r,h,120736186.72964,,,"Observation end time (MET) [s]" obs_mode,s,h,"POINTING",,,"Observation mode" startmjf,i,h,57660,,,"Major frame ctr value at start of data" startmnf,i,h,112,,,"Start minor frame ctr at start of data" startobt,r,h,0.0,,,"On-Board MET close to STARTMJF and STARTMNF" stopmjf,i,h,58543,,,"Major frame ctr value at stop of data" stopmnf,i,h,104,,,"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,-194.12274148754,,,"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,252.47622594331,,,"Pointing RA [deg]" dec_pnt,r,h,-49.981038121914,,,"Pointing Dec [deg]" roll_pnt,r,h,235.28147709683,,,"Pointing Roll [deg]" ra_targ,r,h,252.504167,,,"Observer's specified target RA [deg]" dec_targ,r,h,-49.9625,,,"Observer's specified target Dec [deg]" defocus,r,h,0.0014449365687057,,,"SIM defocus [mm]" ra_nom,r,h,252.47622594331,,,"Nominal RA [deg]" dec_nom,r,h,-49.981038121914,,,"Nominal Dec [deg]" roll_nom,r,h,235.28147709683,,,"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,"acisD2000-01-29ctiN0009B.fits",,,"" mtlfile,s,h,"acisf02700_000N005_mtl1.fits",,,"" grdimgfl,s,h,"acisD2000-01-29grdimgN0001.fits",,,"" tgaincor,s,h,"T",,,"" tgainfil,s,h,"acisD2001-08-01t_gainN0008B.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,"acisf02700_000N005_bpix1.fits",,,"" datamode,s,h,"CC33_GRADED",,,"Data mode" run_id,i,h,1,,,"Science run index" fsw_vers,i,h,30,,,"ACIS flight software version number" startbep,i,h,3526713641,,,"BEP timer value at TSTART" stopbep,i,h,2099220265,,,"BEP timer value at TSTOP" histnum,i,h,474,,,"" title,s,h,"RESOLVING GALACTIC BLACK HOLE ACCRETION GEOMETRY WITH CHANDRA",,,"Prop" observer,s,h,"Prof. Walter Lewin",,,"Principal investigator" object,s,h,"XTE J1650-500",,,"Source name" ds_ident,s,h,"10.25574/02700",,,"Dataset Identifier: DOI" obs_id,s,h,"2700",,,"Observation id" obi_num,i,h,0,,,"Obi number" seq_num,s,h,"400180",,,"Sequence number" ontime,r,h,28617.544105083,,,"Sum of GTIs [s]" ontime7,r,h,28617.544105083,,,"Sum of GTIs [s]" ontime4,r,h,28671.543021336,,,"Sum of GTIs [s]" ontime5,r,h,28671.542950004,,,"Sum of GTIs [s]" ontime6,r,h,20853.304825738,,,"Sum of GTIs [s]" ontime8,r,h,23319.350289375,,,"Sum of GTIs [s]" ontime9,r,h,28651.123284116,,,"Sum of GTIs [s]" livetime,r,h,28505.756823422,,,"Livetime [s]" livtime7,r,h,28505.756823422,,,"Livetime [s]" livtime4,r,h,28559.544806409,,,"Livetime [s]" livtime5,r,h,28559.544735356,,,"Livetime [s]" livtime6,r,h,20771.846603763,,,"Livetime [s]" livtime8,r,h,23228.259077307,,,"Livetime [s]" livtime9,r,h,28539.204833788,,,"Livetime [s]" exposure,r,h,28505.756823422,,,"Exposure time [s]" exposur7,r,h,28505.756823422,,,"Exposure time [s]" exposur4,r,h,28559.544806409,,,"Exposure time [s]" exposur5,r,h,28559.544735356,,,"Exposure time [s]" exposur6,r,h,20771.846603763,,,"Exposure time [s]" exposur8,r,h,23228.259077307,,,"Exposure time [s]" exposur9,r,h,28539.204833788,,,"Exposure time [s]" dtcor,r,h,0.99609375,,,"Dead time correction" time_adj,s,h,"TARGET",,,"time adjustment algorithm" asptype,s,h,"KALMAN",,,"" fp_temp,r,h,153.4460144,,,"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,"acisf02700_000N005_flt1.fits",,,"" maskfile,s,h,"acisf02700_000N005_msk1.fits",,,"" pbkfile,s,h,"acisf120706689N004_pbk0.fits",,,"" dy_avg,i,h,0,,,"Mean DY during observation [mm]" dz_avg,i,h,0,,,"Mean DZ during observation [mm]" dth_avg,i,h,0,,,"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,"4.9.4",,,""