====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Mon Jul 15 18:45:52 EDT 2019 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger908288 ====================================================================== Trigger: 00908288 Segment: 000 BAT Trigger Time: 582091661.376 [s; MET] Trigger Stop: 582091677.76 [s; MET] UTC: 2019-06-13T04:07:18.310160 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 182.558815925826 Dec: 67.2327743021234 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 7.12 Image Trigger?: NO Rate S/N Ratio: 13.4164078649987 [ if not an image trigger ] Image S/N Ratio: 7.12 Analysis Position: [ source = BAT ] RA: 182.558815925826 Dec: 67.2327743021234 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 182.552200555028 Dec: 67.2443496621523 [deg; J2000] { 12h 10m 12.5s , +67d 14' 39.7" } +/- 2.21309937067005 [arcmin] (estimated 90% radius based on SNR) +/- 1.1220717430642 [arcmin] (formal 1-sigma fit error) SNR: 9.77822284193032 Angular difference between the analysis and refined position is 0.711297 arcmin Partial Coding Fraction: 0.09667969 [ including projection effects ] Duration T90: 17.6319999694824 +/- 3.11392230173736 Measured from: 1.74399995803833 to: 19.3759999275208 [s; relative to TRIGTIME] T50: 9.12000000476837 +/- 2.72512455032588 Measured from: 5.2960000038147 to: 14.4160000085831 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 6.88399994373322 to: 7.88399994373322 [s; relative to TRIGTIME] Total Fluence Measured from: 0.623999953269958 to: 20.3199999332428 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.544444 0.796054 0.882720 0.361634 0.141762 0.118954 0.107718 0.090518 [error] Peak 0.104727 0.045834 0.074682 0.065429 0.030756 0.025742 0.025136 0.020389 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 19.696 0.624 20.320 T90 17.632 1.744 19.376 T50 9.120 5.296 14.416 Peak 1.000 6.884 7.884 ====== 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 -1.218 -0.258 0.268 - - - 8.58e-03 -1.25e-03 1.24e-03 54.440 57 CPL -1.013 -2.120 1.012 275.943 -275.943 -275.943 1.06e-02 -3.05e-03 1.71e-02 54.440 56 === 1-s peak spectral analysis === (Best model with acceptable fit: N/A) 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 -2.519 -0.890 0.630 - - - 7.60e-03 -7.60e-03 3.64e-03 76.620 57 CPL -1.754 N/A N/A 15.777 N/A N/A 1.96e-02 N/A N/A 76.430 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 1.66e-07 3.62e-07 6.23e-07 2.48e-06 1.71e-06 3.63e-06 erg/cm2 90%_error_low -4.79e-08 -6.62e-08 -9.88e-08 -8.00e-07 -2.52e-07 -8.57e-07 erg/cm2 90%_error_hi 5.36e-08 6.47e-08 9.74e-08 1.04e-06 2.52e-07 1.06e-06 erg/cm2 Peak flux PL 8.42e-01 4.67e-01 1.63e-01 7.43e-02 1.51e+00 1.55e+00 ph/cm2/s 90%_error_low -4.42e-01 -1.92e-01 -1.02e-01 -7.43e-02 -6.52e-01 -6.54e-01 ph/cm2/s 90%_error_hi 4.87e-01 1.92e-01 9.83e-02 1.02e-01 6.56e-01 6.58e-01 ph/cm2/s Fluence CPL 9.94e-08 1.35e-07 1.41e-07 3.38e-07 4.65e-07 7.39e-07 erg/cm2 90%_error_low N/A -1.10e-07 N/A -2.76e-07 N/A N/A erg/cm2 90%_error_hi N/A 5.93e-08 N/A 1.85e-07 N/A N/A erg/cm2 Peak flux CPL 7.65e-01 5.21e-01 1.82e-01 4.19e-02 1.50e+00 1.51e+00 ph/cm2/s 90%_error_low N/A N/A N/A -4.19e-02 -6.54e-01 -6.63e-01 ph/cm2/s 90%_error_hi N/A N/A N/A 1.35e-01 6.51e-01 6.45e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 182.5522 67.2443 0.0195 39.2161 -91.1197 3.0031653 9.778 TRIG_00908288 Foreground time interval of the image: 0.624 20.320 (delta_t = 19.696 [sec]) Background time interval of the image: -239.376 0.624 (delta_t = 240.000 [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 0.624 sec. to 20.320 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.21832 ( -0.258055 0.267894 ) Norm@50keV : 8.57885E-03 ( -0.00124844 0.00123997 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 54.44 using 59 PHA bins. # Reduced chi-squared = 0.9551 for 57 degrees of freedom # Null hypothesis probability = 5.717613e-01 Photon flux (15-150 keV) in 19.7 sec: 1.00966 ( -0.157965 0.15995 ) ph/cm2/s Energy fluence (15-150 keV) : 1.70607e-06 ( -2.51593e-07 2.52489e-07 ) ergs/cm2
Time interval is from 0.624 sec. to 20.320 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.10304 ( -2.11042 1.02244 ) Epeak [keV] : 442.955 ( -347.747 -347.747 ) Norm@50keV : 9.64443E-03 ( -0.00194643 0.0182358 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 54.41 using 59 PHA bins. # Reduced chi-squared = 0.9716 for 56 degrees of freedom # Null hypothesis probability = 5.352495e-01 Photon flux (15-150 keV) in 19.7 sec: 1.00408 ( -0.166227 0.15632 ) ph/cm2/s Energy fluence (15-150 keV) : 4.65324e-07 ( 0 0 ) ergs/cm2
Time interval is from 6.884 sec. to 7.884 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -2.51943 ( -0.890348 0.630066 ) Norm@50keV : 7.60223E-03 ( -0.00760226 0.00364237 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 76.62 using 59 PHA bins. # Reduced chi-squared = 1.344 for 57 degrees of freedom # Null hypothesis probability = 4.257701e-02 Photon flux (15-150 keV) in 1 sec: 1.51160 ( -0.652171 0.6558 ) ph/cm2/s Energy fluence (15-150 keV) : 7.64434e-08 ( -3.22406e-08 3.22717e-08 ) ergs/cm2
Time interval is from 6.884 sec. to 7.884 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.75362 ( ) Epeak [keV] : 15.7768 ( ) Norm@50keV : 1.96470E-02 ( ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 76.43 using 59 PHA bins. # Reduced chi-squared = 1.365 for 56 degrees of freedom # Null hypothesis probability = 3.617196e-02 Photon flux (15-150 keV) in 1 sec: 1.49857 ( -0.653935 0.65078 ) ph/cm2/s Energy fluence (15-150 keV) : 7.74694e-08 ( -3.2568e-08 3.26465e-08 ) ergs/cm2
T90 = 17.632 sec. Hardness ratio (energy fluence ratio) = 1.71917419862
S(15-50 keV) = 5.281031e-07 S(50-150 keV) = 1.1779652e-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 = -1.594617122175715E-02, IMY = 8.158935246071674E-01
Time interval of the image: -239.376000 0.624000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 254.4240 35.4864 6.3 16.7 35.8 1.0586 1.8 8.8 Her X-1 299.5994 35.2027 1.4 51.1 10.5 8.7077 8.0 0.4 Cyg X-1 308.2429 40.8121 0.0 54.8 0.5 -1.3104 -1.0 10.4 Cyg X-3 211.1947 22.3665 2.2 26.0 172.4 3.2996 5.3 ------ UNKNOWN
Time interval of the image: 0.624000 20.320000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 254.6041 35.3923 9.9 16.8 35.9 0.0874 1.2 7.8 Her X-1 299.7326 35.0845 0.0 51.2 10.5 -0.2513 -1.3 9.9 Cyg X-1 308.1215 41.0185 6.0 54.7 0.3 0.4816 1.9 4.0 Cyg X-3 301.5951 39.6137 2.9 50.7 4.5 0.6568 4.0 ------ UNKNOWN 187.4546 17.0407 2.3 46.1 -168.2 0.6808 5.1 ------ UNKNOWN 213.3508 65.3193 2.3 28.2 -80.7 0.4944 5.0 ------ UNKNOWN 173.0559 27.8252 2.3 51.1 -146.3 1.1460 5.0 ------ UNKNOWN 182.5522 67.2444 1.2 39.2 -91.1 3.0034 9.8 ------ UNKNOWN
Time interval of the image: 125.924600 962.713200 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 319.2968 52.5310 2.9 55.9 10.9 12.8170 4.0 ------ UNKNOWN 326.0770 62.9600 2.1 47.2 2.3 14.5926 5.4 ------ UNKNOWN 103.1006 50.4879 3.3 40.9 -92.3 26.8859 3.5 ------ UNKNOWN