====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Sun Jan 19 22:50:56 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger324561 ====================================================================== Trigger: 00324561 Segment: 000 BAT Trigger Time: 242981217.216 [s; MET] Trigger Stop: 242981218.24 [s; MET] UTC: 2008-09-13T06:46:54.122140 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 65.7245690715967 Dec: -25.1102227127259 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 9.39 Image Trigger?: NO Rate S/N Ratio: 13.9283882771841 [ if not an image trigger ] Image S/N Ratio: 9.39 Analysis Position: [ source = BAT ] RA: 65.7245690715967 Dec: -25.1102227127259 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 65.7457402403733 Dec: -25.1296750070989 [deg; J2000] { 04h 22m 59.0s , -25d 07' 46.8" } +/- 1.47128223274255 [arcmin] (estimated 90% radius based on SNR) +/- 0.580199084280103 [arcmin] (formal 1-sigma fit error) SNR: 17.5207494569967 Angular difference between the analysis and refined position is 1.638599 arcmin Partial Coding Fraction: 0.390625 [ including projection effects ] Duration T90: 7.45600003004074 +/- 0.756676955920547 Measured from: -3.28000000119209 to: 4.17600002884865 [s; relative to TRIGTIME] T50: 3.67200002074242 +/- 1.15100130250627 Measured from: -1.82400000095367 to: 1.84800001978874 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 0.128000020980835 to: 1.12800002098083 [s; relative to TRIGTIME] Total Fluence Measured from: -3.77199998497963 to: 4.55600002408028 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.131878 0.281280 0.272643 0.079838 0.023777 0.025821 0.023959 0.020109 [error] Peak 0.025380 0.065550 0.049943 0.015482 0.008512 0.009293 0.008936 0.007171 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 8.328 -3.772 4.556 T90 7.456 -3.280 4.176 T50 3.672 -1.824 1.848 Peak 1.000 0.128 1.128 ====== 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 -1.200 -0.155 0.158 - - - 6.77e-03 -6.49e-04 6.48e-04 44.420 57 CPL -0.389 -0.646 0.761 111.497 -29.930 192.974 1.59e-02 -7.69e-03 1.83e-02 39.660 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 -1.375 -0.270 0.271 - - - 1.13e-02 -1.94e-03 1.94e-03 65.120 57 CPL -0.123 -1.157 1.607 76.919 -21.306 233.867 4.70e-02 -4.70e-02 2.41e-01 61.640 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 5.43e-08 1.20e-07 2.09e-07 8.47e-07 5.72e-07 1.23e-06 erg/cm2 90%_error_low -9.75e-09 -1.37e-08 -2.21e-08 -1.80e-07 -5.69e-08 -1.95e-07 erg/cm2 90%_error_hi 1.03e-08 1.36e-08 2.19e-08 2.10e-07 5.71e-08 2.19e-07 erg/cm2 Peak flux PL 4.12e-01 4.47e-01 3.45e-01 4.35e-01 1.37e+00 1.64e+00 ph/cm2/s 90%_error_low -1.17e-01 -8.58e-02 -6.90e-02 -1.51e-01 -2.42e-01 -2.84e-01 ph/cm2/s 90%_error_hi 1.27e-01 8.47e-02 6.82e-02 1.91e-01 2.43e-01 2.86e-01 ph/cm2/s Fluence CPL 4.51e-08 1.28e-07 2.28e-07 3.41e-07 5.54e-07 7.41e-07 erg/cm2 90%_error_low -1.16e-08 -1.58e-08 -2.68e-08 -1.61e-07 -6.04e-08 -1.68e-07 erg/cm2 90%_error_hi 1.23e-08 1.61e-08 2.75e-08 3.49e-07 5.99e-08 3.42e-07 erg/cm2 Peak flux CPL 3.25e-01 4.99e-01 3.86e-01 1.48e-01 1.32e+00 1.36e+00 ph/cm2/s 90%_error_low -1.34e-01 -1.03e-01 -8.40e-02 -1.02e-01 -2.46e-01 -2.71e-01 ph/cm2/s 90%_error_hi 1.48e-01 1.09e-01 8.67e-02 2.57e-01 2.47e-01 3.20e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 65.7457 -25.1297 0.0109 46.3273 -168.2143 0.8454300 17.521 TRIG_00324561 Foreground time interval of the image: -3.772 4.556 (delta_t = 8.328 [sec]) Background time interval of the image: -565.115 -462.112 (delta_t = 103.004 [sec]) -239.216 -3.772 (delta_t = 235.444 [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 -3.772 sec. to 4.556 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.19984 ( -0.154994 0.158489 ) Norm@50keV : 6.76545E-03 ( -0.000649458 0.00064835 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 44.42 using 59 PHA bins. # Reduced chi-squared = 0.7792 for 57 degrees of freedom # Null hypothesis probability = 8.877936e-01 Photon flux (15-150 keV) in 8.328 sec: 0.794115 ( -0.080307 0.08064 ) ph/cm2/s Energy fluence (15-150 keV) : 5.71703e-07 ( -5.69241e-08 5.70799e-08 ) ergs/cm2
Time interval is from -3.772 sec. to 4.556 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.389322 ( -0.646022 0.761369 ) Epeak [keV] : 111.497 ( -29.9306 192.974 ) Norm@50keV : 1.58721E-02 ( -0.00769144 0.018291 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 39.66 using 59 PHA bins. # Reduced chi-squared = 0.7083 for 56 degrees of freedom # Null hypothesis probability = 9.516805e-01 Photon flux (15-150 keV) in 8.328 sec: 0.770971 ( -0.082194 0.082585 ) ph/cm2/s Energy fluence (15-150 keV) : 5.5358e-07 ( -6.03945e-08 5.99282e-08 ) ergs/cm2
Time interval is from 0.128 sec. to 1.128 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.37457 ( -0.270019 0.270598 ) Norm@50keV : 1.12900E-02 ( -0.00194072 0.00193918 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 65.12 using 59 PHA bins. # Reduced chi-squared = 1.142 for 57 degrees of freedom # Null hypothesis probability = 2.151694e-01 Photon flux (15-150 keV) in 1 sec: 1.36723 ( -0.24161 0.24254 ) ph/cm2/s Energy fluence (15-150 keV) : 1.09686e-07 ( -2.01969e-08 2.03669e-08 ) ergs/cm2
Time interval is from 0.128 sec. to 1.128 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.12343 ( -1.15727 1.6074 ) Epeak [keV] : 76.9187 ( -21.3064 233.867 ) Norm@50keV : 4.70389E-02 ( -0.0470388 0.240629 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 61.64 using 59 PHA bins. # Reduced chi-squared = 1.101 for 56 degrees of freedom # Null hypothesis probability = 2.814323e-01 Photon flux (15-150 keV) in 1 sec: 1.31643 ( -0.24578 0.24708 ) ph/cm2/s Energy fluence (15-150 keV) : 1.02648e-07 ( -2.18799e-08 2.1921e-08 ) ergs/cm2
T90 = 7.456 sec. Hardness ratio (energy fluence ratio) = 1.74132685483
S(15-50 keV) = 1.7441655e-07 S(50-150 keV) = 3.97297e-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 = -1.025355958080295E+00, IMY = 2.139408541184475E-01
Time interval of the image: -565.115400 -462.111800 -239.216000 -3.772000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 339.3997 -30.2084 2.3 33.7 51.1 1.6931 5.0 ------ UNKNOWN 18.5818 -34.4177 2.7 17.0 126.2 0.8709 4.3 ------ UNKNOWN 31.6072 -48.4785 3.0 11.0 -161.8 0.7469 3.8 ------ UNKNOWN 35.4039 -58.5806 2.2 13.7 -113.4 1.0127 5.3 ------ UNKNOWN
Time interval of the image: -3.772000 4.556000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 335.9712 -58.6717 1.9 23.3 -7.5 0.1556 5.9 ------ UNKNOWN 65.7458 -25.1297 0.7 46.3 -168.2 0.8453 17.5 ------ UNKNOWN
Time interval of the image: 83.284600 962.797600 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6274 22.0117 0.4 50.2 -161.5 35.8122 31.2 0.4 Crab 33.7054 -8.0103 3.1 35.0 110.4 3.4076 3.7 ------ UNKNOWN 49.9799 19.1694 2.6 46.9 156.2 6.0380 4.4 ------ UNKNOWN 67.3400 -60.2036 3.1 35.1 -4.7 2.2977 3.7 ------ UNKNOWN 69.6942 -18.9640 2.8 7.2 -151.7 1.6116 4.2 ------ UNKNOWN 104.6001 -65.9932 3.6 47.6 -23.5 2.6985 3.2 ------ UNKNOWN 123.1778 -52.7653 3.3 50.7 -44.5 9.1337 3.5 ------ UNKNOWN