====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Mon Sep 11 18:50:37 EDT 2017 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger768939 ====================================================================== Trigger: 00768939 Segment: 000 BAT Trigger Time: 525085930.624 [s; MET] Trigger Stop: 525085934.72 [s; MET] UTC: 2017-08-22T09:11:51.057700 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 94.3820902752538 Dec: 55.0186424017826 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 15.48 Image Trigger?: NO Rate S/N Ratio: 28.6705423736629 [ if not an image trigger ] Image S/N Ratio: 15.48 Analysis Position: [ source = BAT ] RA: 94.3820902752538 Dec: 55.0186424017826 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 94.3747958377121 Dec: 54.9991722260662 [deg; J2000] { 06h 17m 30.0s , +54d 59' 57.0" } +/- 2.07411960337215 [arcmin] (estimated 90% radius based on SNR) +/- 0.71692905057524 [arcmin] (formal 1-sigma fit error) SNR: 10.7275036534455 Angular difference between the analysis and refined position is 1.194867 arcmin Partial Coding Fraction: 0.1210938 [ including projection effects ] Duration T90: 64 +/- 16 Measured from: -15.6240000128746 to: 48.3759999871254 [s; relative to TRIGTIME] T50: 32 +/- 16 Measured from: 0.375999987125397 to: 32.3759999871254 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 7.8759999871254 to: 8.8759999871254 [s; relative to TRIGTIME] Total Fluence Measured from: -15.6240000128746 to: 64.3759999871254 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 3.159279 4.047646 2.558933 0.385429 0.172474 0.182155 0.154332 0.124743 [error] Peak 0.131422 0.189459 0.142840 -0.010452 0.024036 0.025487 0.022650 0.014917 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 80.000 -15.624 64.376 T90 64.000 -15.624 48.376 T50 32.000 0.376 32.376 Peak 1.000 7.876 8.876 ====== 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 -1.802 -0.094 0.093 - - - 8.70e-03 -4.90e-04 4.88e-04 64.290 57 CPL -1.328 -0.359 0.392 68.926 -13.494 60.539 1.53e-02 -5.19e-03 8.82e-03 59.050 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 -1.707 -0.255 0.244 - - - 3.17e-02 -5.21e-03 5.14e-03 47.590 57 CPL -0.906 -0.901 1.179 66.842 -17.354 -66.842 8.30e-02 -8.30e-02 2.46e-01 45.470 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 1.18e-06 1.81e-06 2.07e-06 4.55e-06 6.41e-06 9.61e-06 erg/cm2 90%_error_low -1.01e-07 -9.80e-08 -1.54e-07 -6.69e-07 -3.67e-07 -8.12e-07 erg/cm2 90%_error_hi 1.04e-07 9.79e-08 1.54e-07 7.39e-07 3.68e-07 8.63e-07 erg/cm2 Peak flux PL 1.59e+00 1.42e+00 8.70e-01 8.08e-01 4.23e+00 4.69e+00 ph/cm2/s 90%_error_low -3.64e-01 -2.22e-01 -1.78e-01 -2.82e-01 -6.53e-01 -7.16e-01 ph/cm2/s 90%_error_hi 3.83e-01 2.21e-01 1.77e-01 3.53e-01 6.54e-01 7.18e-01 ph/cm2/s Fluence CPL N/A N/A N/A N/A N/A N/A erg/cm2 90%_error_low -1.01e-07 -9.80e-08 -1.54e-07 -6.69e-07 -3.67e-07 -8.12e-07 erg/cm2 90%_error_hi 1.04e-07 9.79e-08 1.54e-07 7.39e-07 3.68e-07 8.63e-07 erg/cm2 Peak flux CPL 1.41e+00 1.55e+00 9.34e-01 3.72e-01 4.14e+00 4.26e+00 ph/cm2/s 90%_error_low -4.29e-01 -2.71e-01 -2.04e-01 -2.35e-01 -6.63e-01 -7.20e-01 ph/cm2/s 90%_error_hi 4.41e-01 2.84e-01 2.11e-01 5.69e-01 6.63e-01 8.05e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 94.3748 54.9992 0.0180 41.8299 -61.5808 11.2824570 10.728 TRIG_00768939 Foreground time interval of the image: -15.624 64.376 (delta_t = 80.000 [sec]) Background time interval of the image: -239.624 -15.624 (delta_t = 224.000 [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 -15.624 sec. to 64.376 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.80167 ( -0.0944541 0.0932117 ) Norm@50keV : 8.70290E-03 ( -0.000490364 0.00048775 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 64.29 using 59 PHA bins. # Reduced chi-squared = 1.128 for 57 degrees of freedom # Null hypothesis probability = 2.364580e-01 Photon flux (15-150 keV) in 80 sec: 1.20008 ( -0.06653 0.06667 ) ph/cm2/s Energy fluence (15-150 keV) : 6.41018e-06 ( -3.66795e-07 3.68424e-07 ) ergs/cm2
Time interval is from -15.624 sec. to 64.376 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.32792 ( -0.359271 0.39216 ) Epeak [keV] : 68.9261 ( -13.494 60.5394 ) Norm@50keV : 1.52840E-02 ( -0.00519353 0.00882503 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 59.05 using 59 PHA bins. # Reduced chi-squared = 1.055 for 56 degrees of freedom # Null hypothesis probability = 3.645945e-01 Photon flux (15-150 keV) in 80 sec: 1.17222 ( -0.0696 0.06969 ) ph/cm2/s Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Time interval is from 7.876 sec. to 8.876 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.70731 ( -0.254703 0.243935 ) Norm@50keV : 3.17388E-02 ( -0.0052145 0.005135 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 47.59 using 59 PHA bins. # Reduced chi-squared = 0.8350 for 57 degrees of freedom # Null hypothesis probability = 8.081899e-01 Photon flux (15-150 keV) in 1 sec: 4.22627 ( -0.65283 0.65365 ) ph/cm2/s Energy fluence (15-150 keV) : 2.93738e-07 ( -4.97267e-08 5.02474e-08 ) ergs/cm2
Time interval is from 7.876 sec. to 8.876 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.906174 ( -0.901436 1.17864 ) Epeak [keV] : 66.8422 ( -17.3541 -66.8429 ) Norm@50keV : 8.29813E-02 ( -0.0829793 0.245991 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 45.47 using 59 PHA bins. # Reduced chi-squared = 0.8120 for 56 degrees of freedom # Null hypothesis probability = 8.415292e-01 Photon flux (15-150 keV) in 1 sec: 4.14146 ( -0.66291 0.66263 ) ph/cm2/s Energy fluence (15-150 keV) : 2.83211e-07 ( -5.09641e-08 5.18239e-08 ) ergs/cm2
T90 = 64.0 sec. Hardness ratio (energy fluence ratio) = 1.1474133344
S(15-50 keV) = 2.986942e-06 S(50-150 keV) = 3.42327e-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 = 4.259670919239378E-01, IMY = 7.871797057479685E-01
Time interval of the image: -239.624000 -15.624000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 299.5933 35.2630 6.4 48.6 146.0 3.7028 1.8 3.7 Cyg X-1 308.3514 40.8532 10.6 40.1 142.1 -1.2362 -1.1 12.5 Cyg X-3 326.1956 38.4170 6.0 34.8 120.9 1.9467 1.9 5.8 Cyg X-2 334.0251 29.0317 2.5 40.6 104.7 7.9046 4.7 ------ UNKNOWN 318.2968 48.4913 2.5 29.8 140.5 2.8978 4.5 ------ UNKNOWN 45.4749 42.7097 2.4 30.9 -5.9 2.4565 4.9 ------ UNKNOWN 235.4263 52.4448 4.6 57.3 -154.2 11.5510 2.5 ------ UNKNOWN 202.0300 67.3176 2.6 48.0 -129.0 13.5289 4.4 ------ UNKNOWN
Time interval of the image: -15.624000 64.376000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 299.6393 35.1659 81.9 48.7 145.9 -0.1012 -0.1 3.2 Cyg X-1 308.0781 40.8796 3.1 40.2 142.4 1.5558 3.7 4.6 Cyg X-3 325.9943 38.3832 8.2 34.9 121.1 0.5371 1.4 9.1 Cyg X-2 34.0973 48.2356 2.7 21.9 2.4 0.8531 4.3 ------ UNKNOWN 271.2260 58.8212 3.4 41.3 -172.2 1.0916 3.4 ------ UNKNOWN 94.3753 54.9991 1.1 41.8 -61.6 11.2592 10.7 ------ UNKNOWN
Time interval of the image: 152.276600 962.453300 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6250 22.0209 0.3 34.0 -2.9 31.5130 41.7 0.6 Crab 125.5562 78.6225 2.7 25.8 172.6 2.8759 4.3 ------ UNKNOWN 203.0186 62.2192 2.5 50.2 -165.9 8.1171 4.6 ------ UNKNOWN 101.3774 11.1158 3.7 44.3 -30.8 3.1638 3.1 ------ UNKNOWN 199.0849 50.6602 5.3 57.2 -154.1 11.9295 2.2 ------ UNKNOWN 196.2588 49.6828 3.1 56.7 -151.7 15.6562 3.7 ------ UNKNOWN 161.2056 40.3741 2.2 45.4 -121.1 13.9317 5.2 ------ UNKNOWN