====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Wed Jan 22 20:35:07 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger152113 ====================================================================== Trigger: 00152113 Segment: 000 BAT Trigger Time: 146729889.984 [s; MET] Trigger Stop: 146729898.176 [s; MET] UTC: 2005-08-26T06:18:10.289400 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 87.7286242278895 Dec: -2.67982454693241 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 8.16 Image Trigger?: NO Rate S/N Ratio: 12.4498995979887 [ if not an image trigger ] Image S/N Ratio: 8.16 Analysis Position: [ source = BAT ] RA: 87.7286242278895 Dec: -2.67982454693241 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 87.7548499261731 Dec: -2.64583212585851 [deg; J2000] { 05h 51m 01.2s , -02d 38' 45.0" } +/- 2.02505812645427 [arcmin] (estimated 90% radius based on SNR) +/- 1.11954119839552 [arcmin] (formal 1-sigma fit error) SNR: 11.1007042482143 Angular difference between the analysis and refined position is 2.574963 arcmin Partial Coding Fraction: 0.8125 [ including projection effects ] Duration T90: 29.5999999642372 +/- 6.30980951371596 Measured from: 0.527999997138977 to: 30.1279999613762 [s; relative to TRIGTIME] T50: 17.391999989748 +/- 10.3361733606588 Measured from: 4.11199998855591 to: 21.5039999783039 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: -0.203999996185303 to: 0.796000003814697 [s; relative to TRIGTIME] Total Fluence Measured from: -0.208000004291534 to: 39.5839999914169 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.143475 0.219637 0.197312 0.092531 0.032931 0.033823 0.029185 0.025075 [error] Peak 0.014602 0.012165 0.019308 0.007652 0.005413 0.005421 0.004726 0.004098 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 39.792 -0.208 39.584 T90 29.600 0.528 30.128 T50 17.392 4.112 21.504 Peak 1.000 -0.204 0.796 ====== 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 -1.234 -0.292 0.299 - - - 1.05e-03 -1.59e-04 1.59e-04 65.800 57 CPL -1.233 -0.291 0.342 9999.360 -9999.360 -9999.360 1.05e-03 -1.60e-04 1.01e-03 65.810 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 -0.666 0.701 - - - 3.17e-03 -1.01e-03 1.01e-03 36.890 57 CPL -1.275 -0.645 0.734 9999.360 -9999.360 -9999.360 3.15e-03 -9.86e-04 1.04e-02 36.910 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 4.16e-08 8.99e-08 1.53e-07 5.98e-07 4.20e-07 8.82e-07 erg/cm2 90%_error_low -1.22e-08 -1.62e-08 -2.92e-08 -2.26e-07 -7.16e-08 -2.47e-07 erg/cm2 90%_error_hi 1.34e-08 1.56e-08 2.85e-08 3.13e-07 7.24e-08 3.22e-07 erg/cm2 Peak flux PL 1.03e-01 1.20e-01 1.01e-01 1.43e-01 3.75e-01 4.66e-01 ph/cm2/s 90%_error_low -6.10e-02 -4.87e-02 -4.14e-02 -9.49e-02 -1.23e-01 -1.55e-01 ph/cm2/s 90%_error_hi 7.43e-02 4.42e-02 3.85e-02 1.80e-01 1.24e-01 1.67e-01 ph/cm2/s Fluence CPL 4.15e-08 9.00e-08 1.53e-07 6.06e-07 4.19e-07 8.80e-07 erg/cm2 90%_error_low N/A N/A N/A N/A N/A -3.67e-07 erg/cm2 90%_error_hi N/A N/A N/A N/A N/A 2.04e-07 erg/cm2 Peak flux CPL 1.03e-01 1.20e-01 1.00e-01 1.42e-01 3.77e-01 4.71e-01 ph/cm2/s 90%_error_low N/A N/A N/A N/A N/A -4.71e-01 ph/cm2/s 90%_error_hi N/A N/A N/A N/A N/A 1.38e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 87.7548 -2.6458 0.0173 17.6442 52.2266 0.7552190 11.101 TRIG_00152113 Foreground time interval of the image: -0.208 39.584 (delta_t = 39.792 [sec]) Background time interval of the image: -231.883 -0.208 (delta_t = 231.675 [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 -0.208 sec. to 39.584 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.23405 ( -0.292271 0.299205 ) Norm@50keV : 1.04899E-03 ( -0.000159148 0.000159139 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 65.80 using 59 PHA bins. # Reduced chi-squared = 1.154 for 57 degrees of freedom # Null hypothesis probability = 1.985151e-01 Photon flux (15-150 keV) in 39.79 sec: 0.123753 ( -0.019491 0.01955 ) ph/cm2/s Energy fluence (15-150 keV) : 4.1955e-07 ( -7.16021e-08 7.24262e-08 ) ergs/cm2
Time interval is from -0.208 sec. to 39.584 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.23334 ( -0.29112 0.341364 ) Epeak [keV] : 9999.36 ( -9999.36 -9999.36 ) Norm@50keV : 1.05359E-03 ( -0.000159773 0.00100676 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 65.81 using 59 PHA bins. # Reduced chi-squared = 1.175 for 56 degrees of freedom # Null hypothesis probability = 1.735288e-01 Photon flux (15-150 keV) in 39.79 sec: 0.123733 ( -0.019495 0.019545 ) ph/cm2/s Energy fluence (15-150 keV) : 4.19307e-07 ( 0 0 ) ergs/cm2
Time interval is from -0.204 sec. to 0.796 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.25186 ( -0.666531 0.700977 ) Norm@50keV : 3.16719E-03 ( -0.00101178 0.00100884 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 36.89 using 59 PHA bins. # Reduced chi-squared = 0.6473 for 57 degrees of freedom # Null hypothesis probability = 9.821702e-01 Photon flux (15-150 keV) in 1 sec: 0.374705 ( -0.123336 0.123677 ) ph/cm2/s Energy fluence (15-150 keV) : 3.16862e-08 ( -1.15067e-08 1.17698e-08 ) ergs/cm2
Time interval is from -0.204 sec. to 0.796 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.27467 ( -0.646759 0.732358 ) Epeak [keV] : 9999.36 ( -9999.36 -9999.36 ) Norm@50keV : 3.15215E-03 ( -0.00101144 0.0103614 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 36.91 using 59 PHA bins. # Reduced chi-squared = 0.6591 for 56 degrees of freedom # Null hypothesis probability = 9.771435e-01 Photon flux (15-150 keV) in 1 sec: 0.376972 ( ) ph/cm2/s Energy fluence (15-150 keV) : 3.15573e-08 ( 0 0 ) ergs/cm2
T90 = 29.6 sec. Hardness ratio (energy fluence ratio) = 1.70055286753
S(15-50 keV) = 1.3147491e-07 S(50-150 keV) = 2.88073e-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 = 1.948287804055376E-01, IMY = -2.514127592022140E-01
Time interval of the image: -231.883400 -0.208000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6247 22.0089 0.2 20.1 136.0 10.3263 57.6 0.6 Crab 69.7178 25.1870 2.9 32.8 128.6 1.0318 4.0 ------ UNKNOWN 70.6857 30.2160 2.8 34.2 137.4 1.1834 4.1 ------ UNKNOWN 141.0136 -14.2045 4.3 47.0 -53.2 2.5589 2.7 ------ UNKNOWN 141.2757 -2.6946 3.1 42.7 -68.3 3.5956 3.7 ------ UNKNOWN 141.9880 23.4587 2.7 42.0 -107.5 3.9994 4.2 ------ UNKNOWN
Time interval of the image: -0.208000 39.584000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.5361 21.8439 9.6 20.0 135.5 -0.0773 -1.2 11.6 Crab 87.7549 -2.6458 1.0 17.6 52.2 0.7553 11.1 ------ UNKNOWN
Time interval of the image: 90.316600 302.096000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6319 22.0149 0.2 25.0 -176.8 9.0308 59.9 0.1 Crab 135.5474 -40.7317 8.3 57.4 -29.5 1.9727 1.4 10.7 Vela X-1 87.6867 -42.2953 2.7 39.6 12.3 1.0112 4.3 ------ UNKNOWN 92.4483 -35.6566 2.5 33.3 5.3 0.8784 4.6 ------ UNKNOWN 94.0450 -17.0506 2.9 15.6 -10.6 0.6208 3.9 ------ UNKNOWN 92.6220 44.7390 2.3 47.6 -163.0 1.6110 5.0 ------ UNKNOWN 132.0465 -16.9124 2.4 45.8 -56.6 3.7385 4.8 ------ UNKNOWN 128.8832 -0.6127 2.3 41.2 -79.9 3.3387 4.9 ------ UNKNOWN