====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Fri Jul 6 12:19:21 EDT 2018 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger835200 ====================================================================== Trigger: 00835200 Segment: 000 BAT Trigger Time: 549620112 [s; MET] Trigger Stop: 549620176 [s; MET] UTC: 2018-06-02T08:14:50.959800 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 142.33930428647 Dec: 32.0927735904 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 7.3 Image Trigger?: YES Rate S/N Ratio: 0 [ if not an image trigger ] Image S/N Ratio: 7.3 Analysis Position: [ source = BAT ] RA: 142.33930428647 Dec: 32.0927735904 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 142.3379578901 Dec: 32.0834759326783 [deg; J2000] { 09h 29m 21.1s , +32d 05' 00.5" } +/- 1.48586983770063 [arcmin] (estimated 90% radius based on SNR) +/- 0.59414834067352 [arcmin] (formal 1-sigma fit error) SNR: 17.2755375622003 Angular difference between the analysis and refined position is 0.562042 arcmin Partial Coding Fraction: 0.7890625 [ including projection effects ] Duration T90: 53.203999876976 +/- 10.1974963735852 Measured from: -32.3999999761581 to: 20.8039999008179 [s; relative to TRIGTIME] T50: 17.6000000238419 +/- 3.31492139140463 Measured from: -22.37600004673 to: -4.77600002288818 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: -19.5720000267029 to: -18.5720000267029 [s; relative to TRIGTIME] Total Fluence Measured from: -39.3719999790192 to: 30.2480000257492 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.928571 1.221477 0.693962 0.140133 0.058479 0.061097 0.053935 0.047623 [error] Peak 0.023619 0.048572 0.039095 0.009362 0.007248 0.007989 0.006664 0.005669 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 69.620 -39.372 30.248 T90 53.204 -32.400 20.804 T50 17.600 -22.376 -4.776 Peak 1.000 -19.572 -18.572 ====== 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 -1.713 -0.114 0.113 - - - 2.69e-03 -1.82e-04 1.81e-04 45.030 57 CPL -1.299 -0.441 0.496 77.605 -21.334 -77.605 4.49e-03 -1.84e-03 3.75e-03 42.470 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 -1.252 -0.294 0.303 - - - 8.13e-03 -1.43e-03 1.43e-03 49.940 57 CPL -0.855 -1.190 1.477 149.098 -149.098 -149.098 1.28e-02 -5.97e-03 5.50e-02 49.600 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 2.92e-07 4.71e-07 5.75e-07 1.38e-06 1.73e-06 2.72e-06 erg/cm2 90%_error_low -2.84e-08 -2.90e-08 -5.30e-08 -2.49e-07 -1.23e-07 -2.99e-07 erg/cm2 90%_error_hi 2.91e-08 2.90e-08 5.33e-08 2.84e-07 1.24e-07 3.27e-07 erg/cm2 Peak flux PL 2.64e-01 3.08e-01 2.59e-01 3.67e-01 9.62e-01 1.20e+00 ph/cm2/s 90%_error_low -8.22e-02 -6.32e-02 -5.32e-02 -1.35e-01 -1.74e-01 -2.18e-01 ph/cm2/s 90%_error_hi 8.97e-02 6.18e-02 5.24e-02 1.78e-01 1.75e-01 2.22e-01 ph/cm2/s Fluence CPL 2.76e-07 4.93e-07 5.77e-07 7.00e-07 1.66e-06 2.05e-06 erg/cm2 90%_error_low -3.29e-08 -3.68e-08 -5.69e-08 -3.42e-07 -1.45e-07 -3.75e-07 erg/cm2 90%_error_hi 3.33e-08 3.78e-08 5.66e-08 7.24e-07 1.46e-07 7.40e-07 erg/cm2 Peak flux CPL 2.45e-01 3.20e-01 2.69e-01 2.35e-01 9.50e-01 1.07e+00 ph/cm2/s 90%_error_low -9.72e-02 -7.13e-02 -6.01e-02 -2.35e-01 -1.79e-01 -2.59e-01 ph/cm2/s 90%_error_hi 1.02e-01 7.68e-02 6.30e-02 1.79e-01 1.78e-01 2.79e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 142.3380 32.0835 0.0111 19.7070 128.2339 1.7815435 17.276 TRIG_00835200 Foreground time interval of the image: -16.899 30.248 (delta_t = 47.147 [sec]) Background time interval of the image:
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 -39.372 sec. to 30.248 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.71289 ( -0.114494 0.11251 ) Norm@50keV : 2.68875E-03 ( -0.000182443 0.000180759 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 45.03 using 59 PHA bins. # Reduced chi-squared = 0.7900 for 57 degrees of freedom # Null hypothesis probability = 8.742984e-01 Photon flux (15-150 keV) in 69.62 sec: 0.358734 ( -0.022183 0.022202 ) ph/cm2/s Energy fluence (15-150 keV) : 1.73171e-06 ( -1.23048e-07 1.24404e-07 ) ergs/cm2
Time interval is from -39.372 sec. to 30.248 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.29883 ( -0.440629 0.495599 ) Epeak [keV] : 77.6052 ( -21.3341 -77.6052 ) Norm@50keV : 4.49068E-03 ( -0.00184179 0.00374889 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 42.47 using 59 PHA bins. # Reduced chi-squared = 0.7585 for 56 degrees of freedom # Null hypothesis probability = 9.089224e-01 Photon flux (15-150 keV) in 69.62 sec: 0.351080 ( -0.0236 0.023588 ) ph/cm2/s Energy fluence (15-150 keV) : 1.65872e-06 ( -1.44661e-07 1.45722e-07 ) ergs/cm2
Time interval is from -19.572 sec. to -18.572 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.25175 ( -0.294277 0.302843 ) Norm@50keV : 8.12887E-03 ( -0.00143247 0.00143195 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 49.94 using 59 PHA bins. # Reduced chi-squared = 0.8761 for 57 degrees of freedom # Null hypothesis probability = 7.348818e-01 Photon flux (15-150 keV) in 1 sec: 0.961707 ( -0.174208 0.174663 ) ph/cm2/s Energy fluence (15-150 keV) : 8.13242e-08 ( -1.5684e-08 1.58453e-08 ) ergs/cm2
Time interval is from -19.572 sec. to -18.572 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.854801 ( -1.18983 1.47672 ) Epeak [keV] : 149.098 ( -149.167 -149.167 ) Norm@50keV : 1.28105E-02 ( -0.00596966 0.0549788 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 49.60 using 59 PHA bins. # Reduced chi-squared = 0.8856 for 56 degrees of freedom # Null hypothesis probability = 7.143947e-01 Photon flux (15-150 keV) in 1 sec: 0.949796 ( -0.178585 0.178094 ) ph/cm2/s Energy fluence (15-150 keV) : 7.92228e-08 ( -1.74368e-08 1.69406e-08 ) ergs/cm2
T90 = 53.204 sec. Hardness ratio (energy fluence ratio) = 1.2202530727
S(15-50 keV) = 7.632511e-07 S(50-150 keV) = 9.684789e-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 = -2.216738482059665E-01, IMY = -2.813543010671655E-01
Time interval of the image:
Time interval of the image: -16.899400 30.248000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6337 22.0170 1.6 40.2 -110.9 2.2950 7.1 0.2 Crab 142.3380 32.0835 0.7 19.7 128.2 1.7816 17.3 ------ UNKNOWN
Time interval of the image: 113.500600 963.180000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 181.7411 12.8400 4.2 40.9 98.2 8.1291 2.7 ------ UNKNOWN 191.1488 35.6529 2.9 40.3 60.4 8.1755 4.1 ------ UNKNOWN 146.8506 -19.1950 3.0 51.5 163.8 11.2313 3.9 ------ UNKNOWN 109.6449 81.4456 3.4 50.8 -16.6 4.8257 3.4 ------ UNKNOWN