====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Wed Jan 22 20:04:46 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger156467 ====================================================================== Trigger: 00156467 Segment: 000 BAT Trigger Time: 149111750.144 [s; MET] Trigger Stop: 149111751.168 [s; MET] UTC: 2005-09-22T19:55:50.400700 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 317.390673787551 Dec: -8.77177360830505 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 22.78 Image Trigger?: NO Rate S/N Ratio: 106.677082824757 [ if not an image trigger ] Image S/N Ratio: 22.78 Analysis Position: [ source = BAT ] RA: 317.390673787551 Dec: -8.77177360830505 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 317.3872254408 Dec: -8.76251539765766 [deg; J2000] { 21h 09m 32.9s , -08d 45' 45.1" } +/- 0.679972630743099 [arcmin] (estimated 90% radius based on SNR) +/- 0.199803507517951 [arcmin] (formal 1-sigma fit error) SNR: 52.7735529253484 Angular difference between the analysis and refined position is 0.591934 arcmin Partial Coding Fraction: 0.53125 [ including projection effects ] Duration T90: 4.55200001597404 +/- 0.448017870687082 Measured from: -2.08399999141693 to: 2.46800002455711 [s; relative to TRIGTIME] T50: 1.4200000166893 +/- 0.0933809188437612 Measured from: -0.407999992370605 to: 1.0120000243187 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: -0.0760000050067902 to: 0.92399999499321 [s; relative to TRIGTIME] Total Fluence Measured from: -3.31599998474121 to: 3.4839999973774 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.531671 0.894585 0.732055 0.225969 0.020857 0.023376 0.021434 0.016176 [error] Peak 0.174968 0.334242 0.275743 0.091580 0.009524 0.011640 0.011251 0.007795 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 6.800 -3.316 3.484 T90 4.552 -2.084 2.468 T50 1.420 -0.408 1.012 Peak 1.000 -0.076 0.924 ====== 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 -1.357 -0.056 0.056 - - - 2.45e-02 -7.57e-04 7.57e-04 70.980 57 CPL -1.126 -0.213 0.226 209.568 -76.969 1431.682 3.13e-02 -6.07e-03 8.24e-03 67.630 56 === 1-s peak spectral analysis === (Best model with acceptable fit: CPL) 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 -1.299 -0.070 0.070 - - - 6.04e-02 -2.48e-03 2.48e-03 69.860 57 CPL -0.890 -0.275 0.293 146.483 -40.006 174.475 9.46e-02 -2.40e-02 3.48e-02 63.190 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 1.86e-07 3.73e-07 5.83e-07 2.01e-06 1.62e-06 3.15e-06 erg/cm2 90%_error_low -1.13e-08 -1.35e-08 -2.15e-08 -1.62e-07 -5.36e-08 -1.75e-07 erg/cm2 90%_error_hi 1.15e-08 1.34e-08 2.14e-08 1.72e-07 5.36e-08 1.83e-07 erg/cm2 Peak flux PL 2.05e+00 2.33e+00 1.89e+00 2.56e+00 7.20e+00 8.83e+00 ph/cm2/s 90%_error_low -1.55e-01 -1.10e-01 -9.11e-02 -2.48e-01 -3.05e-01 -3.73e-01 ph/cm2/s 90%_error_hi 1.59e-01 1.09e-01 9.06e-02 2.63e-01 3.05e-01 3.74e-01 ph/cm2/s Fluence CPL 1.76e-07 3.79e-07 5.96e-07 1.47e-06 1.60e-06 2.62e-06 erg/cm2 90%_error_low -1.41e-08 -1.48e-08 -2.46e-08 -3.58e-07 -5.75e-08 -3.57e-07 erg/cm2 90%_error_hi 1.44e-08 1.49e-08 2.48e-08 4.89e-07 5.73e-08 4.86e-07 erg/cm2 Peak flux CPL 1.87e+00 2.40e+00 1.98e+00 1.69e+00 7.09e+00 7.94e+00 ph/cm2/s 90%_error_low -1.88e-01 -1.23e-01 -1.09e-01 -4.00e-01 -3.14e-01 -5.15e-01 ph/cm2/s 90%_error_hi 1.93e-01 1.24e-01 1.10e-01 5.43e-01 3.14e-01 6.12e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 317.3872 -8.7625 0.0036 34.5467 158.8477 2.5092686 52.774 TRIG_00156467 Foreground time interval of the image: -3.316 3.484 (delta_t = 6.800 [sec]) Background time interval of the image: -51.843 -3.316 (delta_t = 48.527 [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 -3.316 sec. to 3.484 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.35664 ( -0.0557072 0.0558196 ) Norm@50keV : 2.44893E-02 ( -0.000757394 0.000757376 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 70.98 using 59 PHA bins. # Reduced chi-squared = 1.245 for 57 degrees of freedom # Null hypothesis probability = 1.008992e-01 Photon flux (15-150 keV) in 6.8 sec: 2.95435 ( -0.09835 0.09854 ) ph/cm2/s Energy fluence (15-150 keV) : 1.62423e-06 ( -5.35501e-08 5.36379e-08 ) ergs/cm2
Time interval is from -3.316 sec. to 3.484 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.12628 ( -0.212862 0.226412 ) Epeak [keV] : 209.568 ( -76.9706 1431.68 ) Norm@50keV : 3.12754E-02 ( -0.00607098 0.00824488 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 67.63 using 59 PHA bins. # Reduced chi-squared = 1.208 for 56 degrees of freedom # Null hypothesis probability = 1.371989e-01 Photon flux (15-150 keV) in 6.8 sec: 2.91635 ( -0.104 0.10424 ) ph/cm2/s Energy fluence (15-150 keV) : 1.60328e-06 ( -5.74924e-08 5.72616e-08 ) ergs/cm2
Time interval is from -0.076 sec. to 0.924 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.29912 ( -0.0696745 0.0696675 ) Norm@50keV : 6.03769E-02 ( -0.00247541 0.00247517 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 69.86 using 59 PHA bins. # Reduced chi-squared = 1.226 for 57 degrees of freedom # Null hypothesis probability = 1.178458e-01 Photon flux (15-150 keV) in 1 sec: 7.20203 ( -0.30509 0.30536 ) ph/cm2/s Energy fluence (15-150 keV) : 5.96829e-07 ( -2.68747e-08 2.69489e-08 ) ergs/cm2
Time interval is from -0.076 sec. to 0.924 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.889571 ( -0.274956 0.293392 ) Epeak [keV] : 146.483 ( -40.006 174.475 ) Norm@50keV : 9.45512E-02 ( -0.0240426 0.0348189 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 63.19 using 59 PHA bins. # Reduced chi-squared = 1.128 for 56 degrees of freedom # Null hypothesis probability = 2.373631e-01 Photon flux (15-150 keV) in 1 sec: 7.08802 ( -0.31383 0.31405 ) ph/cm2/s Energy fluence (15-150 keV) : 5.84346e-07 ( -2.87233e-08 2.85545e-08 ) ergs/cm2
T90 = 4.552 sec. Hardness ratio (energy fluence ratio) = 1.56199642582
S(15-50 keV) = 5.589383e-07 S(50-150 keV) = 1.0652844e-06
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 = -6.420951896159968E-01, IMY = -2.484374243543705E-01
Time interval of the image: -51.843410 -3.316000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 288.8513 11.0461 7.8 47.5 -150.8 0.2107 1.5 6.8 GRS 1915+105 299.6241 35.2224 0.9 36.8 -114.8 1.5580 12.3 2.1 Cyg X-1 307.9639 40.8999 4.7 33.0 -101.1 0.2546 2.4 7.3 Cyg X-3 325.9388 38.3711 8.9 21.3 -83.5 0.0962 1.3 11.4 Cyg X-2 23.8111 4.4776 2.4 47.6 44.4 1.3237 4.8 ------ UNKNOWN 303.3412 -23.4899 2.4 54.4 161.3 1.6638 4.9 ------ UNKNOWN 340.5935 36.8177 2.0 17.5 -49.6 0.3582 5.7 ------ UNKNOWN
Time interval of the image: -3.316000 3.484000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 288.8074 11.1652 0.0 47.5 -150.6 -0.0604 -0.8 13.2 GRS 1915+105 299.7005 35.2618 9.7 36.7 -114.7 0.0713 1.2 6.5 Cyg X-1 308.2089 40.8109 6.1 32.8 -101.1 -0.1028 -1.9 9.6 Cyg X-3 325.9115 38.3548 0.0 21.3 -83.5 -0.0969 -2.7 12.4 Cyg X-2 335.9986 -3.3706 2.1 23.0 125.9 0.2083 5.4 ------ UNKNOWN 317.3872 -8.7625 0.2 34.5 158.8 2.5092 52.8 ------ UNKNOWN 291.2812 -15.1650 3.1 57.2 178.1 0.8184 3.8 ------ UNKNOWN 289.1272 -12.3933 2.1 57.3 -177.8 1.0875 5.5 ------ UNKNOWN
Time interval of the image: 94.756600 302.973400 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 285.0209 -25.0044 7.1 34.8 -112.4 0.4187 1.6 5.1 HT1900.1-2455 288.8113 10.9722 1.1 34.6 -46.3 2.1981 10.5 1.8 GRS 1915+105 299.5849 35.2084 0.5 47.1 -10.5 6.7223 23.6 0.5 Cyg X-1 308.0889 40.9687 3.2 50.5 0.4 1.3054 3.6 1.4 Cyg X-3 326.1954 38.3508 22.7 47.8 18.8 0.2055 0.5 2.1 Cyg X-2 336.2902 34.1671 2.7 46.5 31.2 1.7465 4.3 ------ UNKNOWN 308.4031 25.2698 3.5 35.1 -4.7 0.6036 3.3 ------ UNKNOWN 301.1025 35.2884 2.2 46.6 -8.9 1.3735 5.2 ------ UNKNOWN 302.7724 -31.4891 2.7 26.5 -141.8 0.6633 4.3 ------ UNKNOWN 291.5370 -20.2617 2.6 27.4 -108.2 0.8122 4.5 ------ UNKNOWN 278.0801 -49.1705 2.8 52.0 -138.9 3.2274 4.1 ------ UNKNOWN