====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Wed Jan 22 13:48:32 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger228316 ====================================================================== Trigger: 00228316 Segment: 000 BAT Trigger Time: 179224368 [s; MET] Trigger Stop: 179224432 [s; MET] UTC: 2006-09-06T08:32:46.573080 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 40.7485000090217 Dec: 30.3494020585399 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 7.96 Image Trigger?: YES Rate S/N Ratio: 0 [ if not an image trigger ] Image S/N Ratio: 7.96 Analysis Position: [ source = BAT ] RA: 40.7485000090217 Dec: 30.3494020585399 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 40.7119716223741 Dec: 30.3561616373423 [deg; J2000] { 02h 42m 50.9s , +30d 21' 22.2" } +/- 2.30678805573973 [arcmin] (estimated 90% radius based on SNR) +/- 1.00649717813953 [arcmin] (formal 1-sigma fit error) SNR: 9.2158619370197 Angular difference between the analysis and refined position is 1.934285 arcmin Partial Coding Fraction: 0.453125 [ including projection effects ] Duration T90: 44.5879999995232 +/- 2.59449571961208 Measured from: -39.9280000030994 to: 4.65999999642372 [s; relative to TRIGTIME] T50: 17.0960000157356 +/- 2.35680543187746 Measured from: -32.3000000119209 to: -15.2039999961853 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: -24.8120000064373 to: -23.8120000064373 [s; relative to TRIGTIME] Total Fluence Measured from: -41.7960000038147 to: 8.30000001192093 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 1.317647 1.496176 0.845607 0.203501 0.066231 0.069054 0.059785 0.050217 [error] Peak 0.073020 0.083412 0.053519 0.001752 0.009681 0.010371 0.008645 0.006966 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 50.096 -41.796 8.300 T90 44.588 -39.928 4.660 T50 17.096 -32.300 -15.204 Peak 1.000 -24.812 -23.812 ====== 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 -1.979 -0.105 0.102 - - - 4.95e-03 -3.13e-04 3.10e-04 56.530 57 CPL -1.550 -0.405 0.450 47.803 -18.967 42.777 8.44e-03 -3.28e-03 6.23e-03 53.230 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 -1.997 -0.259 0.239 - - - 1.32e-02 -2.24e-03 2.17e-03 66.830 57 CPL -1.533 -0.611 1.163 44.608 N/A N/A 2.40e-02 N/A N/A 66.170 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 4.98e-07 6.84e-07 6.94e-07 1.28e-06 2.29e-06 3.16e-06 erg/cm2 90%_error_low -4.25e-08 -3.75e-08 -5.98e-08 -2.13e-07 -1.39e-07 -2.75e-07 erg/cm2 90%_error_hi 4.35e-08 3.75e-08 6.01e-08 2.40e-07 1.39e-07 2.93e-07 erg/cm2 Peak flux PL 8.78e-01 6.59e-01 3.30e-01 2.37e-01 1.98e+00 2.10e+00 ph/cm2/s 90%_error_low -1.69e-01 -8.96e-02 -7.21e-02 -8.62e-02 -2.71e-01 -2.87e-01 ph/cm2/s 90%_error_hi 1.76e-01 8.96e-02 7.22e-02 1.10e-01 2.71e-01 2.87e-01 ph/cm2/s Fluence CPL 4.70e-07 7.15e-07 6.96e-07 6.59e-07 2.20e-06 2.54e-06 erg/cm2 90%_error_low -4.96e-08 -4.75e-08 -6.44e-08 -2.93e-07 -1.58e-07 -3.39e-07 erg/cm2 90%_error_hi 5.03e-08 4.85e-08 6.41e-08 5.70e-07 1.59e-07 5.83e-07 erg/cm2 Peak flux CPL 8.34e-01 6.98e-01 3.36e-01 1.34e-01 1.95e+00 2.00e+00 ph/cm2/s 90%_error_low -1.96e-01 -1.50e-01 -7.83e-02 -1.34e-01 -2.77e-01 -3.03e-01 ph/cm2/s 90%_error_hi 9.74e-02 1.24e-01 7.90e-02 1.78e-01 2.76e-01 3.62e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 40.7120 30.3562 0.0208 35.2814 152.1794 0.4788870 9.216 TRIG_00228316 Foreground time interval of the image: -6.499 8.300 (delta_t = 14.799 [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 -41.796 sec. to 8.300 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.97866 ( -0.104827 0.102378 ) Norm@50keV : 4.95226E-03 ( -0.000313358 0.000310094 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 56.53 using 59 PHA bins. # Reduced chi-squared = 0.9917 for 57 degrees of freedom # Null hypothesis probability = 4.927135e-01 Photon flux (15-150 keV) in 50.1 sec: 0.735696 ( -0.041815 0.041895 ) ph/cm2/s Energy fluence (15-150 keV) : 2.28606e-06 ( -1.38541e-07 1.39473e-07 ) ergs/cm2
Time interval is from -41.796 sec. to 8.300 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.54954 ( -0.4051 0.449706 ) Epeak [keV] : 47.8026 ( -18.9669 42.7773 ) Norm@50keV : 8.44215E-03 ( -0.0032753 0.006227 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 53.23 using 59 PHA bins. # Reduced chi-squared = 0.9506 for 56 degrees of freedom # Null hypothesis probability = 5.802361e-01 Photon flux (15-150 keV) in 50.1 sec: 0.719271 ( -0.044449 0.0445 ) ph/cm2/s Energy fluence (15-150 keV) : 2.20413e-06 ( -1.58078e-07 1.5867e-07 ) ergs/cm2
Time interval is from -24.812 sec. to -23.812 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.99727 ( -0.258626 0.238758 ) Norm@50keV : 1.32002E-02 ( -0.00223911 0.00216705 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 66.83 using 59 PHA bins. # Reduced chi-squared = 1.172 for 57 degrees of freedom # Null hypothesis probability = 1.752132e-01 Photon flux (15-150 keV) in 1 sec: 1.97769 ( -0.27082 0.27095 ) ph/cm2/s Energy fluence (15-150 keV) : 1.21733e-07 ( -1.92552e-08 1.95533e-08 ) ergs/cm2
Time interval is from -24.812 sec. to -23.812 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.53341 ( -0.611263 1.1633 ) Epeak [keV] : 44.6084 ( ) Norm@50keV : 2.40109E-02 ( ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 66.17 using 59 PHA bins. # Reduced chi-squared = 1.182 for 56 degrees of freedom # Null hypothesis probability = 1.659052e-01 Photon flux (15-150 keV) in 1 sec: 1.95248 ( -0.27654 0.27593 ) ph/cm2/s Energy fluence (15-150 keV) : 0 ( 0 0 ) 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 = -6.257692935479964E-01, IMY = -3.302189153698654E-01
Time interval of the image:
Time interval of the image: -6.499390 8.300000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6023 22.0158 1.0 33.6 -135.2 0.5580 11.8 1.7 Crab 24.9675 -22.7287 2.2 39.1 52.3 0.4801 5.4 ------ UNKNOWN 40.7120 30.3562 1.2 35.3 152.2 0.4788 9.2 ------ UNKNOWN 65.6703 -45.3591 2.0 45.1 -8.4 0.3549 5.8 ------ UNKNOWN 99.0355 1.6719 3.0 40.9 -94.5 0.5356 3.9 ------ UNKNOWN
Time interval of the image: 132.500590 263.982600 265.000000 963.063900 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6376 22.0286 0.4 39.1 -63.4 33.8794 28.4 0.9 Crab 351.2122 47.7272 2.8 41.4 154.0 3.6969 4.2 ------ UNKNOWN 48.2942 23.7899 3.2 9.4 -22.6 1.3391 3.6 ------ UNKNOWN 67.4112 -12.0716 2.7 49.6 -10.4 3.6140 4.2 ------ UNKNOWN 76.0150 6.2449 2.7 40.9 -36.3 2.9755 4.3 ------ UNKNOWN 84.4126 -4.5530 4.2 54.4 -33.0 6.2117 2.7 ------ UNKNOWN