====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Mon Jan 13 22:19:45 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger453747 ====================================================================== Trigger: 00453747 Segment: 000 BAT Trigger Time: 327616135.168 [s; MET] Trigger Stop: 327616137.216 [s; MET] UTC: 2011-05-20T20:28:48.193920 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 134.375117604516 Dec: 56.401895388955 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 7.87 Image Trigger?: NO Rate S/N Ratio: 15.9059737205869 [ if not an image trigger ] Image S/N Ratio: 7.87 Analysis Position: [ source = BAT ] RA: 134.375117604516 Dec: 56.401895388955 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 134.359584878478 Dec: 56.4210944883302 [deg; J2000] { 08h 57m 26.3s , +56d 25' 15.9" } +/- 1.19479743924927 [arcmin] (estimated 90% radius based on SNR) +/- 0.359074980866218 [arcmin] (formal 1-sigma fit error) SNR: 23.5883723976126 Angular difference between the analysis and refined position is 1.262065 arcmin Partial Coding Fraction: 0.6953125 [ including projection effects ] Duration T90: 20.8640000224113 +/- 5.36723098024146 Measured from: -0.191999971866608 to: 20.6720000505447 [s; relative to TRIGTIME] T50: 8.95999997854233 +/- 1.51721854264313 Measured from: 2.75200003385544 to: 11.7120000123978 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 4.14000004529953 to: 5.14000004529953 [s; relative to TRIGTIME] Total Fluence Measured from: -1.15200001001358 to: 26.4959999918938 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.332642 0.625974 0.545709 0.165336 0.036730 0.038611 0.034896 0.030042 [error] Peak 0.026936 0.043987 0.049045 0.013078 0.006987 0.007632 0.007071 0.006036 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 27.648 -1.152 26.496 T90 20.864 -0.192 20.672 T50 8.960 2.752 11.712 Peak 1.000 4.140 5.140 ====== 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 -1.209 -0.117 0.118 - - - 4.15e-03 -2.77e-04 2.77e-04 51.070 57 CPL -0.883 -0.378 0.513 185.639 -82.172 -185.639 5.91e-03 -1.92e-03 4.23e-03 49.630 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 -1.073 -0.278 0.292 - - - 9.37e-03 -1.49e-03 1.49e-03 42.670 57 CPL -1.079 -0.269 0.351 9999.360 -9999.360 -9999.360 9.42e-03 -1.48e-03 1.67e-02 42.680 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 1.12e-07 2.45e-07 4.24e-07 1.70e-06 1.16e-06 2.48e-06 erg/cm2 90%_error_low -1.43e-08 -1.92e-08 -3.32e-08 -2.82e-07 -8.42e-08 -3.04e-07 erg/cm2 90%_error_hi 1.49e-08 1.90e-08 3.31e-08 3.20e-07 8.47e-08 3.36e-07 erg/cm2 Peak flux PL 2.57e-01 3.33e-01 3.17e-01 5.33e-01 1.08e+00 1.44e+00 ph/cm2/s 90%_error_low -7.98e-02 -6.70e-02 -5.57e-02 -1.79e-01 -1.77e-01 -2.41e-01 ph/cm2/s 90%_error_hi 8.84e-02 6.50e-02 5.48e-02 2.32e-01 1.78e-01 2.50e-01 ph/cm2/s Fluence CPL 1.04e-07 2.52e-07 4.37e-07 1.08e-06 1.14e-06 1.87e-06 erg/cm2 90%_error_low -1.76e-08 -2.16e-08 -3.79e-08 -4.86e-07 -9.22e-08 -4.86e-07 erg/cm2 90%_error_hi 1.81e-08 2.21e-08 3.86e-08 7.19e-07 9.13e-08 7.23e-07 erg/cm2 Peak flux CPL 2.63e-01 3.33e-01 3.16e-01 5.30e-01 1.09e+00 1.46e+00 ph/cm2/s 90%_error_low -9.32e-02 -3.47e-02 -5.48e-02 N/A -1.92e-01 -2.53e-01 ph/cm2/s 90%_error_hi 7.52e-02 7.04e-02 6.43e-02 N/A 1.84e-01 2.17e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 134.3596 56.4211 0.0082 30.1286 14.8159 1.7198390 23.588 TRIG_00453747 Foreground time interval of the image: -1.152 25.533 (delta_t = 26.685 [sec]) Background time interval of the image: -239.168 -1.152 (delta_t = 238.016 [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 -1.152 sec. to 26.496 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.20924 ( -0.116885 0.118338 ) Norm@50keV : 4.15141E-03 ( -0.000276928 0.00027683 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 51.07 using 59 PHA bins. # Reduced chi-squared = 0.8959 for 57 degrees of freedom # Null hypothesis probability = 6.960511e-01 Photon flux (15-150 keV) in 27.65 sec: 0.487936 ( -0.033957 0.034028 ) ph/cm2/s Energy fluence (15-150 keV) : 1.16168e-06 ( -8.4231e-08 8.46599e-08 ) ergs/cm2
Time interval is from -1.152 sec. to 26.496 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.882772 ( -0.377945 0.513239 ) Epeak [keV] : 185.639 ( -82.1833 -185.65 ) Norm@50keV : 5.91483E-03 ( -0.0019238 0.00422566 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 49.63 using 59 PHA bins. # Reduced chi-squared = 0.8862 for 56 degrees of freedom # Null hypothesis probability = 7.131925e-01 Photon flux (15-150 keV) in 27.65 sec: 0.480747 ( -0.035487 0.035482 ) ph/cm2/s Energy fluence (15-150 keV) : 1.13803e-06 ( -9.21928e-08 9.13445e-08 ) ergs/cm2
Time interval is from 4.140 sec. to 5.140 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.07331 ( -0.278272 0.29191 ) Norm@50keV : 9.37467E-03 ( -0.00149089 0.00148533 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 42.67 using 59 PHA bins. # Reduced chi-squared = 0.7486 for 57 degrees of freedom # Null hypothesis probability = 9.207944e-01 Photon flux (15-150 keV) in 1 sec: 1.08476 ( -0.177196 0.17794 ) ph/cm2/s Energy fluence (15-150 keV) : 9.88758e-08 ( -1.69633e-08 1.70927e-08 ) ergs/cm2
Time interval is from 4.140 sec. to 5.140 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.07927 ( -0.273612 0.346258 ) Epeak [keV] : 9999.36 ( -9999.36 -9999.36 ) Norm@50keV : 9.42247E-03 ( -0.00147432 0.0166643 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 42.68 using 59 PHA bins. # Reduced chi-squared = 0.7622 for 56 degrees of freedom # Null hypothesis probability = 9.049928e-01 Photon flux (15-150 keV) in 1 sec: 1.08818 ( -0.192089 0.18424 ) ph/cm2/s Energy fluence (15-150 keV) : 9.92796e-08 ( -1.88992e-08 1.79966e-08 ) ergs/cm2
T90 = 20.864 sec. Hardness ratio (energy fluence ratio) = 1.73001513829
S(15-50 keV) = 3.57031e-07 S(50-150 keV) = 8.046501e-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 = 5.610522469974785E-01, IMY = -1.484031830978243E-01
Time interval of the image: -239.168000 -1.152000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6321 22.0205 0.3 26.8 -111.7 9.7701 36.1 0.4 Crab 151.6301 15.7103 3.0 39.0 93.5 3.2969 3.8 ------ UNKNOWN 136.2542 -4.7533 2.4 42.3 132.8 3.1514 4.7 ------ UNKNOWN 63.0856 34.3183 2.9 41.1 -81.3 3.2513 4.0 ------ UNKNOWN
Time interval of the image: -1.152000 25.532600 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.4692 22.0534 5.0 27.0 -111.5 0.1726 2.3 9.4 Crab 165.2193 53.8765 2.8 44.3 32.6 0.6021 4.2 ------ UNKNOWN 186.5702 72.4871 2.5 56.3 10.5 1.7211 4.6 ------ UNKNOWN 134.3597 56.4213 0.5 30.1 14.8 1.7193 23.6 ------ UNKNOWN 58.1437 47.2529 2.6 44.1 -61.9 1.0531 4.4 ------ UNKNOWN 66.2024 23.6462 2.0 41.1 -98.1 1.4961 5.7 ------ UNKNOWN
Time interval of the image: 83.532600 962.878700 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 223.2269 62.4581 3.8 42.0 43.0 4.9931 3.5 ------ UNKNOWN 222.6601 62.5138 3.8 41.7 43.2 5.6642 4.0 ------ UNKNOWN 1.5658 60.1642 3.3 57.6 -26.3 11.6113 3.5 ------ UNKNOWN 105.7168 6.0113 4.1 55.2 -145.3 10.9307 2.8 ------ UNKNOWN