====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Mon Jan 20 04:42:51 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger302728 ====================================================================== Trigger: 00302728 Segment: 000 BAT Trigger Time: 224112624 [s; MET] Trigger Stop: 224112688 [s; MET] UTC: 2008-02-07T21:30:21.441560 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 207.513016835087 Dec: 7.5139985942329 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 15.83 Image Trigger?: YES Rate S/N Ratio: 0 [ if not an image trigger ] Image S/N Ratio: 15.83 Analysis Position: [ source = BAT ] RA: 207.513016835087 Dec: 7.5139985942329 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 207.515129773953 Dec: 7.49224929255474 [deg; J2000] { 13h 50m 03.6s , +07d 29' 32.1" } +/- 1.14950852327648 [arcmin] (estimated 90% radius based on SNR) +/- 0.394970094257361 [arcmin] (formal 1-sigma fit error) SNR: 24.9271361631863 Angular difference between the analysis and refined position is 1.310997 arcmin Partial Coding Fraction: 1.015625 [ including projection effects ] Duration T90: 292.460000008345 +/- 7.98527645796442 Measured from: 30.7840000092983 to: 323.244000017643 [s; relative to TRIGTIME] T50: 111.840000003576 +/- 19.6082656987265 Measured from: 77.0040000081062 to: 188.844000011683 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 330.33599999547 to: 331.33599999547 [s; relative to TRIGTIME] Total Fluence Measured from: 5.15999999642372 to: 332.891999989748 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 3.077512 4.053600 2.929785 0.617283 0.095627 0.099712 0.087707 0.074592 [error] Peak 0.025363 0.047041 0.040416 0.022408 0.011917 0.012595 0.011467 0.008859 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 327.732 5.160 332.892 T90 292.460 30.784 323.244 T50 111.840 77.004 188.844 Peak 1.000 330.336 331.336 ====== Spectral Analysis Summary ===================================== Model : spectral model: simple power-law (PL) and cutoff power-law (CPL) Ph_index : photon index: E^{Ph_index} Ph_90err : 90% error of the photon index Epeak : Epeak in keV Epeak_90err: 90% error of Epeak Norm : normalization at 50 keV in both the PL model and CPL model Nomr_90err : 90% error of the normalization chi2 : Chi-Squared dof : degree of freedo === Time-averaged spectral analysis === (Best model with acceptable fit: PL) Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof PL -1.561 -0.058 0.058 - - - 2.08e-03 -6.40e-05 6.40e-05 63.510 57 CPL -1.246 -0.231 0.244 124.610 -32.923 180.415 2.94e-03 -6.46e-04 8.84e-04 57.990 56 === 1-s peak spectral analysis === (Best model with acceptable fit: PL) Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof PL -1.417 -0.481 0.486 - - - 8.99e-03 -2.53e-03 2.52e-03 42.660 57 CPL -0.989 -1.456 2.667 127.371 -127.371 -127.371 1.44e-02 -7.83e-03 2.32e-01 42.500 56 === Fluence/Peak Flux Summary === Model Band1 Band2 Band3 Band4 Band5 Total 15-25 25-50 50-100 100-350 15-150 15-350 keV Fluence PL 9.19e-07 1.63e-06 2.21e-06 6.17e-06 6.40e-06 1.09e-05 erg/cm2 90%_error_low -5.31e-08 -5.49e-08 -8.83e-08 -5.38e-07 -2.11e-07 -5.96e-07 erg/cm2 90%_error_hi 5.43e-08 5.48e-08 8.81e-08 5.73e-07 2.11e-07 6.24e-07 erg/cm2 Peak flux PL 3.42e-01 3.61e-01 2.71e-01 3.28e-01 1.10e+00 1.30e+00 ph/cm2/s 90%_error_low -1.62e-01 -1.19e-01 -8.91e-02 -1.77e-01 -3.26e-01 -3.66e-01 ph/cm2/s 90%_error_hi 1.90e-01 1.15e-01 8.64e-02 2.63e-01 3.29e-01 3.68e-01 ph/cm2/s Fluence CPL 8.60e-07 1.66e-06 2.25e-06 3.96e-06 6.23e-06 8.73e-06 erg/cm2 90%_error_low -6.70e-08 -6.15e-08 -9.50e-08 -1.04e-06 -2.43e-07 -1.06e-06 erg/cm2 90%_error_hi 6.82e-08 6.20e-08 9.58e-08 1.49e-06 2.42e-07 1.50e-06 erg/cm2 Peak flux CPL 3.12e-01 3.75e-01 2.85e-01 2.17e-01 1.08e+00 1.19e+00 ph/cm2/s 90%_error_low -1.97e-01 -1.24e-01 -9.85e-02 -2.17e-01 -3.34e-01 -4.16e-01 ph/cm2/s 90%_error_hi 2.13e-01 1.39e-01 1.12e-01 1.81e-01 3.36e-01 4.57e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 207.5151 7.4922 0.0077 10.0972 -1.6013 2.4510182 24.927 TRIG_00302728 Foreground time interval of the image: 5.160 73.901 (delta_t = 68.741 [sec]) Background time interval of the image: -132.499 5.160 (delta_t = 137.659 [sec])
Note: The mask-weighted lightcurves have units of either count/det or counts/sec/det, where a det is 0.4 x 0.4 = 0.16 sq cm.
Time interval is from 5.160 sec. to 332.892 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.56063 ( -0.0581782 0.0580422 ) Norm@50keV : 2.07582E-03 ( -6.40214e-05 6.39756e-05 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 63.51 using 59 PHA bins. # Reduced chi-squared = 1.114 for 57 degrees of freedom # Null hypothesis probability = 2.579988e-01 Photon flux (15-150 keV) in 327.7 sec: 0.263610 ( -0.008657 0.008678 ) ph/cm2/s Energy fluence (15-150 keV) : 6.39523e-06 ( -2.10845e-07 2.11499e-07 ) ergs/cm2
Time interval is from 5.160 sec. to 332.892 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.24559 ( -0.230913 0.243782 ) Epeak [keV] : 124.610 ( -32.9227 180.416 ) Norm@50keV : 2.93960E-03 ( -0.000645791 0.000883942 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 57.99 using 59 PHA bins. # Reduced chi-squared = 1.035 for 56 degrees of freedom # Null hypothesis probability = 4.019365e-01 Photon flux (15-150 keV) in 327.7 sec: 0.257681 ( -0.009592 0.009617 ) ph/cm2/s Energy fluence (15-150 keV) : 6.23112e-06 ( -2.42915e-07 2.42044e-07 ) ergs/cm2
Time interval is from 330.336 sec. to 331.336 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.41749 ( -0.480682 0.485512 ) Norm@50keV : 8.99247E-03 ( -0.0025251 0.00252489 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 42.66 using 59 PHA bins. # Reduced chi-squared = 0.7484 for 57 degrees of freedom # Null hypothesis probability = 9.210333e-01 Photon flux (15-150 keV) in 1 sec: 1.09956 ( -0.326046 0.32926 ) ph/cm2/s Energy fluence (15-150 keV) : 8.65964e-08 ( -2.56427e-08 2.58615e-08 ) ergs/cm2
Time interval is from 330.336 sec. to 331.336 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.988879 ( -1.45596 2.66713 ) Epeak [keV] : 127.371 ( -127.395 -127.395 ) Norm@50keV : 1.44255E-02 ( -0.00782789 0.231688 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 42.50 using 59 PHA bins. # Reduced chi-squared = 0.7590 for 56 degrees of freedom # Null hypothesis probability = 9.083438e-01 Photon flux (15-150 keV) in 1 sec: 1.08325 ( -0.334414 0.33636 ) ph/cm2/s Energy fluence (15-150 keV) : 8.51432e-08 ( -2.74426e-08 2.66332e-08 ) ergs/cm2
T90 = N/A sec. Hardness ratio (energy fluence ratio) = N/A
S(15-50 keV) = N/A S(50-150 keV) = N/A
The dash-dotted line and the dashed line traces the fluences calculated from the Band function with Epeak = 15 and 150 keV, respectively. Both lines assume a canonical values of alpha = -1 and beta = -2.5.
IMX = 1.780072672979531E-01, IMY = 4.976312632555476E-03
Time interval of the image: -132.499410 5.160000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 195.1665 -18.7174 2.3 38.1 20.0 0.9055 5.0 ------ UNKNOWN 230.1360 48.8030 2.5 36.5 -152.4 0.7072 4.7 ------ UNKNOWN 230.0218 27.7371 2.2 23.6 -117.9 0.6990 5.2 ------ UNKNOWN
Time interval of the image: 5.160000 73.900590 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 173.9871 14.1515 2.2 31.8 90.4 0.9860 5.3 ------ UNKNOWN 207.5151 7.4923 0.5 10.1 -1.6 2.4510 24.9 ------ UNKNOWN 242.9278 3.0138 2.1 38.2 -70.0 1.2185 5.5 ------ UNKNOWN
Time interval of the image: 112.100600 194.900590 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 254.4207 35.2741 5.1 51.1 -143.2 -0.7884 -2.2 4.5 Her X-1 174.0160 34.5251 3.5 41.0 122.9 1.1335 3.3 ------ UNKNOWN 171.3349 -3.9961 2.0 37.9 60.3 1.5004 5.8 ------ UNKNOWN 207.5084 7.4818 0.3 0.0 -28.9 3.3205 34.7 ------ UNKNOWN 208.5433 -45.3028 2.0 52.8 -14.1 1.5424 5.8 ------ UNKNOWN 227.6220 -39.2160 2.3 50.3 -33.5 1.4511 5.1 ------ UNKNOWN 248.2060 2.2147 2.4 40.9 -97.9 2.0214 4.9 ------ UNKNOWN