====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Sat Oct 4 23:32:32 EDT 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger596426 ====================================================================== Trigger: 00596426 Segment: 000 BAT Trigger Time: 419573222.976 [s; MET] Trigger Stop: 419573224 [s; MET] UTC: 2014-04-19T04:06:51.071220 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 126.99951654378 Dec: 46.2209756335083 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 11.96 Image Trigger?: NO Rate S/N Ratio: 40.9756024970958 [ if not an image trigger ] Image S/N Ratio: 11.96 Analysis Position: [ source = BAT ] RA: 126.99951654378 Dec: 46.2209756335083 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 127.00158970807 Dec: 46.2340088443795 [deg; J2000] { 08h 28m 00.4s , +46d 14' 02.4" } +/- 0.688422882359341 [arcmin] (estimated 90% radius based on SNR) +/- 0.177832474241562 [arcmin] (formal 1-sigma fit error) SNR: 51.8505860593101 Angular difference between the analysis and refined position is 0.786713 arcmin Partial Coding Fraction: 0.3320312 [ including projection effects ] Duration T90: 80.0759999155998 +/- 3.77504441677767 Measured from: -2.44400000572205 to: 77.6319999098778 [s; relative to TRIGTIME] T50: 38.8039999604225 +/- 0.849894101154483 Measured from: 8.56000000238419 to: 47.3639999628067 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 51.4239999651909 to: 52.4239999651909 [s; relative to TRIGTIME] Total Fluence Measured from: -8.68800002336502 to: 125.347999989986 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 4.506116 7.404678 7.443074 2.618822 0.090397 0.100439 0.096987 0.083572 [error] Peak 0.110133 0.209249 0.204925 0.063059 0.007232 0.008562 0.008655 0.006535 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 134.036 -8.688 125.348 T90 80.076 -2.444 77.632 T50 38.804 8.560 47.364 Peak 1.000 51.424 52.424 ====== 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 -1.155 -0.034 0.034 - - - 1.14e-02 -2.10e-04 2.09e-04 45.330 57 CPL -1.099 -0.067 0.108 994.290 -994.290 -994.290 1.20e-02 -7.61e-04 1.20e-03 45.410 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 -1.030 -0.079 0.080 - - - 3.90e-02 -1.75e-03 1.75e-03 52.220 57 CPL -0.754 -0.296 0.328 255.400 -108.375 -255.400 5.21e-02 -1.06e-02 2.05e-02 49.850 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 1.41e-06 3.21e-06 5.78e-06 2.45e-05 1.57e-05 3.49e-05 erg/cm2 90%_error_low -5.77e-08 -7.69e-08 -1.09e-07 -1.12e-06 -2.83e-07 -1.15e-06 erg/cm2 90%_error_hi 5.88e-08 7.68e-08 1.09e-07 1.16e-06 2.84e-07 1.18e-06 erg/cm2 Peak flux PL 1.03e+00 1.37e+00 1.34e+00 2.35e+00 4.50e+00 6.08e+00 ph/cm2/s 90%_error_low -9.14e-02 -7.46e-02 -6.80e-02 -2.50e-01 -2.05e-01 -3.05e-01 ph/cm2/s 90%_error_hi 9.44e-02 7.41e-02 6.76e-02 2.69e-01 2.05e-01 3.11e-01 ph/cm2/s Fluence CPL 1.42e-06 3.22e-06 5.79e-06 2.40e-05 1.57e-05 3.44e-05 erg/cm2 90%_error_low -1.07e-07 -1.02e-07 -1.38e-07 -3.65e-06 -2.29e-07 -3.70e-06 erg/cm2 90%_error_hi 3.85e-08 9.94e-08 1.10e-07 7.27e-07 3.41e-07 1.47e-06 erg/cm2 Peak flux CPL 9.58e-01 1.39e+00 1.38e+00 1.76e+00 4.45e+00 5.49e+00 ph/cm2/s 90%_error_low -1.16e-01 -7.98e-02 -8.26e-02 -4.69e-01 -2.12e-01 -5.18e-01 ph/cm2/s 90%_error_hi 1.19e-01 8.06e-02 8.37e-02 4.15e-01 2.12e-01 5.79e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 127.0016 46.2340 0.0037 36.5222 142.3095 10.1894655 51.851 TRIG_00596426 Foreground time interval of the image: -8.688 17.725 (delta_t = 26.413 [sec]) Background time interval of the image: -239.976 -8.688 (delta_t = 231.288 [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 -8.688 sec. to 125.348 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.15453 ( -0.0339422 0.0340804 ) Norm@50keV : 1.14163E-02 ( -0.000210092 0.00020952 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 45.33 using 59 PHA bins. # Reduced chi-squared = 0.7952 for 57 degrees of freedom # Null hypothesis probability = 8.674891e-01 Photon flux (15-150 keV) in 134 sec: 1.33210 ( -0.02664 0.02675 ) ph/cm2/s Energy fluence (15-150 keV) : 1.57284e-05 ( -2.83139e-07 2.83955e-07 ) ergs/cm2
Time interval is from -8.688 sec. to 125.348 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.14925 ( -0.0671999 0.10796 ) Epeak [keV] : 9997.24 ( -9997.13 -9997.13 ) Norm@50keV : 1.14732E-02 ( -0.000200531 0.00175638 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 45.29 using 59 PHA bins. # Reduced chi-squared = 0.8088 for 56 degrees of freedom # Null hypothesis probability = 8.462556e-01 Photon flux (15-150 keV) in 134 sec: 1.32955 ( -0.02896 0.02413 ) ph/cm2/s Energy fluence (15-150 keV) : 1.57122e-05 ( -2.29182e-07 3.41148e-07 ) ergs/cm2
Time interval is from 51.424 sec. to 52.424 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.03015 ( -0.079213 0.0796724 ) Norm@50keV : 3.90456E-02 ( -0.00174721 0.00174637 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 52.22 using 59 PHA bins. # Reduced chi-squared = 0.9162 for 57 degrees of freedom # Null hypothesis probability = 6.545507e-01 Photon flux (15-150 keV) in 1 sec: 4.50333 ( -0.20458 0.20469 ) ph/cm2/s Energy fluence (15-150 keV) : 4.1784e-07 ( -2.10781e-08 2.11655e-08 ) ergs/cm2
Time interval is from 51.424 sec. to 52.424 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.754132 ( -0.295517 0.328113 ) Epeak [keV] : 255.400 ( -108.375 -255.4 ) Norm@50keV : 5.20719E-02 ( -0.0105558 0.0204951 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 49.85 using 59 PHA bins. # Reduced chi-squared = 0.8902 for 56 degrees of freedom # Null hypothesis probability = 7.054621e-01 Photon flux (15-150 keV) in 1 sec: 4.45167 ( -0.21229 0.21222 ) ph/cm2/s Energy fluence (15-150 keV) : 4.11661e-07 ( -2.24904e-08 2.23792e-08 ) ergs/cm2
T90 = 80.076 sec. Hardness ratio (energy fluence ratio) = 1.79688350286
S(15-50 keV) = 4.62863e-06 S(50-150 keV) = 1.1099989e-05
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 = -5.860254435949162E-01, IMY = -4.527762847548107E-01
Time interval of the image: -239.976000 -8.688000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6345 22.0140 0.5 44.1 -150.4 9.6959 24.7 0.1 Crab 105.6044 59.8504 2.4 18.0 139.5 0.9080 4.7 ------ UNKNOWN 107.0313 25.1793 2.5 47.0 179.3 1.7226 4.6 ------ UNKNOWN 325.1336 45.7394 3.0 54.3 -6.0 2.3436 3.8 ------ UNKNOWN 357.4361 39.5795 2.3 46.6 -36.2 2.3009 5.0 ------ UNKNOWN 60.1914 20.7233 2.4 44.4 -118.9 4.3452 4.9 ------ UNKNOWN
Time interval of the image: -8.688000 17.724610 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.4246 22.0275 5.4 44.1 -150.2 0.3562 2.1 11.6 Crab 168.2072 63.2786 3.0 39.3 95.3 1.6937 3.8 ------ UNKNOWN 167.0277 69.4303 2.6 34.6 88.7 1.0660 4.4 ------ UNKNOWN 127.0016 46.2340 0.2 36.5 142.3 10.1892 51.8 ------ UNKNOWN 302.1078 63.2345 3.9 45.8 20.3 0.5910 3.0 ------ UNKNOWN
Time interval of the image: 75.524600 962.164700 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6294 22.0114 0.4 42.5 -124.3 40.0589 28.0 0.3 Crab 120.0616 -9.3329 3.0 55.9 173.6 10.7198 3.9 ------ UNKNOWN 180.0497 75.3703 2.8 36.5 5.2 2.4446 4.1 ------ UNKNOWN 129.5903 39.3641 2.9 7.1 148.9 1.8408 3.9 ------ UNKNOWN 126.9697 46.2348 1.9 0.0 -107.0 3.0350 6.0 ------ UNKNOWN 102.5680 -8.6167 3.6 59.0 -166.2 11.4319 3.2 ------ UNKNOWN