====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.48 Process Start Time: Fri Sep 29 23:23:01 EDT 2023 Host Name: batproc1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1189514 ====================================================================== Trigger: 01189514 Segment: 000 BAT Trigger Time: 715454608.192 [s; MET] Trigger Stop: 715454610.24 [s; MET] UTC: 2023-09-03T17:22:56.248260 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 9.92619753724725 Dec: -40.9238279211701 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 7.63 Image Trigger?: NO Rate S/N Ratio: 11.6619037896906 [ if not an image trigger ] Image S/N Ratio: 7.63 Analysis Position: [ source = BAT ] RA: 9.92619753724725 Dec: -40.9238279211701 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 9.897540336889 Dec: -40.9088789038754 [deg; J2000] { 00h 39m 35.4s , -40d 54' 32.0" } +/- 1.85317230060731 [arcmin] (estimated 90% radius based on SNR) +/- 0.624442800687011 [arcmin] (formal 1-sigma fit error) SNR: 12.6003184888947 Angular difference between the analysis and refined position is 1.578838 arcmin Partial Coding Fraction: 0.40625 [ including projection effects ] Duration T90: 2.53599989414215 +/- 0.269429022393487 Measured from: 0.276000022888184 to: 2.81199991703033 [s; relative to TRIGTIME] T50: 1.57999992370605 +/- 0.544249932404332 Measured from: 0.679999947547913 to: 2.25999987125397 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 0.495999932289124 to: 1.49599993228912 [s; relative to TRIGTIME] Total Fluence Measured from: 0.195999979972839 to: 2.93199992179871 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.080541 0.160312 0.111503 0.027623 0.016930 0.017991 0.016133 0.013339 [error] Peak 0.039378 0.068104 0.051960 0.015583 0.010591 0.010974 0.010193 0.008028 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 2.736 0.196 2.932 T90 2.536 0.276 2.812 T50 1.580 0.680 2.260 Peak 1.000 0.496 1.496 ====== 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 -1.401 -0.210 0.209 - - - 9.21e-03 -1.27e-03 1.26e-03 54.650 57 CPL 0.678 -1.221 1.772 63.179 -10.648 24.407 1.05e-01 -1.05e-01 6.93e-01 44.260 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 -1.444 -0.291 0.287 - - - 1.07e-02 -2.11e-03 2.10e-03 63.400 57 CPL 0.611 -1.507 2.466 61.212 -13.450 42.017 1.24e-01 -1.24e-01 2.14e+00 57.220 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 2.93e-08 5.73e-08 8.67e-08 2.85e-07 2.43e-07 4.58e-07 erg/cm2 90%_error_low -6.23e-09 -8.19e-09 -1.46e-08 -8.73e-08 -3.64e-08 -1.02e-07 erg/cm2 90%_error_hi 6.56e-09 8.13e-09 1.46e-08 1.09e-07 3.68e-08 1.19e-07 erg/cm2 Peak flux PL 4.17e-01 4.34e-01 3.19e-01 3.78e-01 1.32e+00 1.55e+00 ph/cm2/s 90%_error_low -1.22e-01 -8.91e-02 -7.45e-02 -1.46e-01 -2.57e-01 -3.04e-01 ph/cm2/s 90%_error_hi 1.32e-01 8.84e-02 7.41e-02 1.89e-01 2.58e-01 3.07e-01 ph/cm2/s Fluence CPL 2.09e-08 7.00e-08 9.50e-08 3.64e-08 2.15e-07 2.22e-07 erg/cm2 90%_error_low -7.67e-09 -1.13e-08 -1.92e-08 -2.57e-08 -3.79e-08 -4.43e-08 erg/cm2 90%_error_hi 8.03e-09 1.20e-08 1.85e-08 6.56e-08 4.01e-08 7.03e-08 erg/cm2 Peak flux CPL 3.01e-01 5.31e-01 3.62e-01 7.05e-02 1.25e+00 1.26e+00 ph/cm2/s 90%_error_low -1.43e-01 -1.19e-01 -1.02e-01 -7.05e-02 -2.63e-01 -2.71e-01 ph/cm2/s 90%_error_hi 1.55e-01 1.28e-01 9.77e-02 1.60e-01 2.64e-01 2.85e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 9.8975 -40.9089 0.0153 28.6584 93.7422 0.4120037 12.600 TRIG_01189514 Foreground time interval of the image: 0.196 2.932 (delta_t = 2.736 [sec]) Background time interval of the image: -344.192 -254.138 (delta_t = 90.054 [sec]) -239.192 0.196 (delta_t = 239.388 [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 0.196 sec. to 2.932 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.40144 ( -0.210199 0.209397 ) Norm@50keV : 9.21022E-03 ( -0.00126762 0.0012641 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared 54.65 using 59 bins. Reduced chi-squared = 0.958772 # Null hypothesis probability of 5.64e-01 with 57 degrees of freedom Photon flux (15-150 keV) in 2.736 sec: 1.12203 ( -0.154298 0.15456 ) ph/cm2/s Energy fluence (15-150 keV) : 2.43442e-07 ( -3.63967e-08 3.6782e-08 ) ergs/cm2
Time interval is from 0.196 sec. to 2.932 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: 0.677504 ( -1.22073 1.77143 ) Epeak [keV] : 63.1787 ( -10.6464 24.4082 ) Norm@50keV : 0.104702 ( -0.104718 0.692852 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared 44.26 using 59 bins. Reduced chi-squared = 0.790357 # Null hypothesis probability of 8.72e-01 with 56 degrees of freedom Photon flux (15-150 keV) in 2.736 sec: 1.05189 ( -0.161075 0.16068 ) ph/cm2/s Energy fluence (15-150 keV) : 2.14633e-07 ( -3.79453e-08 4.00829e-08 ) ergs/cm2
Time interval is from 0.496 sec. to 1.496 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.44404 ( -0.291337 0.286498 ) Norm@50keV : 1.07037E-02 ( -0.00210759 0.00209862 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared 63.40 using 59 bins. Reduced chi-squared = 1.11228 # Null hypothesis probability of 2.61e-01 with 57 degrees of freedom Photon flux (15-150 keV) in 1 sec: 1.31709 ( -0.25746 0.25794 ) ph/cm2/s Energy fluence (15-150 keV) : 1.0257e-07 ( -2.16436e-08 2.19331e-08 ) ergs/cm2
Time interval is from 0.496 sec. to 1.496 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: 0.610635 ( -1.51318 2.4589 ) Epeak [keV] : 61.2124 ( -13.3617 42.1045 ) Norm@50keV : 0.124388 ( -0.125894 2.14179 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared 57.22 using 59 bins. Reduced chi-squared = 1.02179 # Null hypothesis probability of 4.30e-01 with 56 degrees of freedom Photon flux (15-150 keV) in 1 sec: 1.25430 ( -0.263157 0.26357 ) ph/cm2/s Energy fluence (15-150 keV) : 9.12935e-08 ( -2.21868e-08 2.38448e-08 ) ergs/cm2
T90 = 2.536 sec. Hardness ratio (energy fluence ratio) = 1.51411922278
S(15-50 keV) = 8.660901e-08 S(50-150 keV) = 1.5683614e-07
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 = -3.567144706682876E-02, IMY = -5.453748491462346E-01
Time interval of the image: -344.192000 -254.138200 -239.192000 0.196000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 298.4262 -62.6125 2.7 43.5 13.3 3.6914 4.2 ------ UNKNOWN 191.4203 -84.6742 2.6 33.1 -32.1 2.6472 4.5 ------ UNKNOWN 81.4884 -25.7539 3.0 44.2 -153.3 3.1476 3.9 ------ UNKNOWN 123.5538 -64.0929 2.7 34.4 -76.7 3.4448 4.3 ------ UNKNOWN 100.9292 -30.9553 2.3 48.0 -129.0 10.4959 5.2 ------ UNKNOWN
Time interval of the image: 0.196000 2.932000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 9.8975 -40.9089 0.9 28.7 93.7 0.4121 12.6 ------ UNKNOWN 69.9783 -8.7153 2.6 56.5 -174.4 0.3447 4.5 ------ UNKNOWN 171.3015 -81.5121 2.3 34.3 -38.9 0.1280 5.1 ------ UNKNOWN 101.2771 -35.0241 2.3 44.8 -125.6 0.3295 4.9 ------ UNKNOWN
Time interval of the image: 94.908590 961.808600 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 345.9990 -33.1766 2.6 20.5 58.5 5.3695 4.3 ------ UNKNOWN 308.2330 -47.7598 2.6 43.4 13.3 9.0753 4.4 ------ UNKNOWN 345.1778 -71.6926 2.4 33.1 -32.1 6.4403 4.8 ------ UNKNOWN 342.8014 -75.5913 2.5 36.7 -35.1 6.7678 4.7 ------ UNKNOWN