====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Sun May 17 23:59:36 EDT 2015 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger639433 ====================================================================== Trigger: 00639433 Segment: 000 BAT Trigger Time: 452046088.768 [s; MET] Trigger Stop: 452046090.816 [s; MET] UTC: 2015-04-30T00:21:15.254160 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 326.490552682698 Dec: -27.9275457785092 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 7.21 Image Trigger?: NO Rate S/N Ratio: 53.619026473818 [ if not an image trigger ] Image S/N Ratio: 7.21 Analysis Position: [ source = BAT ] RA: 326.490552682698 Dec: -27.9275457785092 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 326.478336224977 Dec: -27.9157234611205 [deg; J2000] { 21h 45m 54.8s , -27d 54' 56.6" } +/- 1.53276330908951 [arcmin] (estimated 90% radius based on SNR) +/- 0.635985090250733 [arcmin] (formal 1-sigma fit error) SNR: 16.5254752244778 Angular difference between the analysis and refined position is 0.960534 arcmin Partial Coding Fraction: 0.05761719 [ including projection effects ] Duration T90: 106.879999995232 +/- 7.02755263860171 Measured from: -8.02399998903275 to: 98.8560000061989 [s; relative to TRIGTIME] T50: 45.6000000238419 +/- 12.1512600658553 Measured from: 0.0400000214576721 to: 45.6400000452995 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 0.972000002861023 to: 1.97200000286102 [s; relative to TRIGTIME] Total Fluence Measured from: -10.9359999895096 to: 108.695999979973 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 2.038652 3.303377 3.218708 0.971239 0.206399 0.222208 0.204792 0.170343 [error] Peak 0.147112 0.161659 0.256416 0.068977 0.030220 0.039259 0.041162 0.029845 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 119.632 -10.936 108.696 T90 106.880 -8.024 98.856 T50 45.600 0.040 45.640 Peak 1.000 0.972 1.972 ====== 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 -1.366 -0.117 0.118 - - - 5.78e-03 -3.95e-04 3.95e-04 48.090 57 CPL -1.035 -0.384 0.508 158.704 -65.316 -158.704 8.28e-03 -2.74e-03 5.83e-03 46.580 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 -1.181 -0.326 0.327 - - - 4.23e-02 -8.25e-03 8.23e-03 54.760 57 CPL -0.935 0.935 1.712 262.386 -262.386 -262.386 5.42e-02 -1.95e-02 2.14e-01 54.660 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 7.79e-07 1.55e-06 2.41e-06 8.22e-06 6.73e-06 1.30e-05 erg/cm2 90%_error_low -9.74e-08 -1.20e-07 -1.98e-07 -1.39e-06 -4.93e-07 -1.53e-06 erg/cm2 90%_error_hi 1.01e-07 1.20e-07 1.97e-07 1.57e-06 4.95e-07 1.67e-06 erg/cm2 Peak flux PL 1.28e+00 1.56e+00 1.38e+00 2.09e+00 4.96e+00 6.32e+00 ph/cm2/s 90%_error_low -4.49e-01 -3.69e-01 -3.01e-01 -8.21e-01 -1.00e+00 -1.26e+00 ph/cm2/s 90%_error_hi 5.08e-01 3.59e-01 2.94e-01 1.05e+00 1.01e+00 1.29e+00 ph/cm2/s Fluence CPL 7.26e-07 1.60e-06 2.49e-06 5.31e-06 6.62e-06 1.01e-05 erg/cm2 90%_error_low -1.20e-07 -1.36e-07 -2.28e-07 -2.29e-06 -5.22e-07 -2.31e-06 erg/cm2 90%_error_hi 1.23e-07 1.39e-07 2.33e-07 3.40e-06 5.19e-07 3.48e-06 erg/cm2 Peak flux CPL 1.20e+00 1.59e+00 1.43e+00 1.70e+00 4.93e+00 5.92e+00 ph/cm2/s 90%_error_low -6.13e-01 -1.98e-01 -3.46e-01 -1.70e+00 -1.02e+00 -1.65e+00 ph/cm2/s 90%_error_hi 5.75e-01 3.99e-01 4.36e-01 1.38e+00 1.02e+00 1.65e+00 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 326.4783 -27.9157 0.0117 48.8758 38.1536 7.2190216 16.525 TRIG_00639433 Foreground time interval of the image: -10.936 31.133 (delta_t = 42.069 [sec]) Background time interval of the image: -239.768 -10.936 (delta_t = 228.832 [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 -10.936 sec. to 108.696 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.36624 ( -0.117355 0.117736 ) Norm@50keV : 5.77871E-03 ( -0.000394839 0.000394813 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 48.09 using 59 PHA bins. # Reduced chi-squared = 0.8436 for 57 degrees of freedom # Null hypothesis probability = 7.937390e-01 Photon flux (15-150 keV) in 119.6 sec: 0.698547 ( -0.050368 0.050487 ) ph/cm2/s Energy fluence (15-150 keV) : 6.72684e-06 ( -4.93067e-07 4.94887e-07 ) ergs/cm2
Time interval is from -10.936 sec. to 108.696 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.03462 ( -0.384326 0.507761 ) Epeak [keV] : 158.704 ( -65.3168 -158.705 ) Norm@50keV : 8.28267E-03 ( -0.00273645 0.00582929 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 46.58 using 59 PHA bins. # Reduced chi-squared = 0.8318 for 56 degrees of freedom # Null hypothesis probability = 8.110386e-01 Photon flux (15-150 keV) in 119.6 sec: 0.688590 ( -0.052228 0.052278 ) ph/cm2/s Energy fluence (15-150 keV) : 6.62066e-06 ( -5.21766e-07 5.18894e-07 ) ergs/cm2
Time interval is from 0.972 sec. to 1.972 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.18062 ( -0.325579 0.326713 ) Norm@50keV : 4.23487E-02 ( -0.00824776 0.0082347 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 54.76 using 59 PHA bins. # Reduced chi-squared = 0.9607 for 57 degrees of freedom # Null hypothesis probability = 5.596512e-01 Photon flux (15-150 keV) in 1 sec: 4.95775 ( -1.00173 1.00524 ) ph/cm2/s Energy fluence (15-150 keV) : 4.32076e-07 ( -8.99863e-08 9.00676e-08 ) ergs/cm2
Time interval is from 0.972 sec. to 1.972 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.934864 ( 0.934725 1.71219 ) Epeak [keV] : 262.386 ( -262.263 -262.263 ) Norm@50keV : 5.41692E-02 ( -0.019479 0.213941 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 54.66 using 59 PHA bins. # Reduced chi-squared = 0.9761 for 56 degrees of freedom # Null hypothesis probability = 5.255375e-01 Photon flux (15-150 keV) in 1 sec: 4.92759 ( -1.01959 1.01521 ) ph/cm2/s Energy fluence (15-150 keV) : 9.078e-08 ( 0 0 ) ergs/cm2
T90 = 106.88 sec. Hardness ratio (energy fluence ratio) = 1.55163646855
S(15-50 keV) = 2.3314861e-06 S(50-150 keV) = 4.39534e-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 = 9.006498952128774E-01, IMY = -7.075603182957515E-01
Time interval of the image: -239.768000 -10.936000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 299.5670 35.2016 1.9 45.4 137.6 2.8098 6.2 1.1 Cyg X-1 308.0676 41.0024 7.6 40.8 148.6 0.3908 1.5 3.6 Cyg X-3 326.2844 38.3513 4.1 27.7 159.0 0.3685 2.8 5.6 Cyg X-2 312.3315 32.3779 2.6 34.4 137.5 0.8922 4.5 ------ UNKNOWN 332.7587 73.4968 2.4 57.1 -170.1 2.5164 4.9 ------ UNKNOWN 18.5989 10.3660 3.0 31.9 -67.8 0.6452 3.9 ------ UNKNOWN
Time interval of the image: -10.936000 31.132590 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 299.6438 35.2380 3.1 45.4 137.6 1.1054 3.7 3.4 Cyg X-1 308.0013 41.0585 14.9 40.9 148.7 0.1460 0.8 8.0 Cyg X-3 326.0504 38.3268 5.8 27.9 158.6 0.1939 2.0 5.7 Cyg X-2 326.4783 -27.9158 0.8 48.9 38.2 7.2203 14.8 ------ UNKNOWN 343.9069 46.0484 2.2 29.2 -169.2 0.4386 5.2 ------ UNKNOWN 29.6265 28.2099 2.6 41.2 -99.2 1.4793 4.5 ------ UNKNOWN
Time interval of the image: 95.532590 738.232590 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 285.1222 -24.9441 10.8 37.0 107.3 1.2024 1.1 4.9 HT1900.1-2455 302.3072 -61.9364 2.5 37.6 40.9 3.4307 4.6 ------ UNKNOWN 300.9310 10.4151 3.5 45.6 166.0 3.1518 3.3 ------ UNKNOWN 324.7028 30.7729 4.8 58.7 -159.3 7.8761 2.4 ------ UNKNOWN