====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Sat May 9 18:50:29 EDT 2015 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger377179 ====================================================================== Trigger: 00377179 Segment: 000 BAT Trigger Time: 281057151.104 [s; MET] Trigger Stop: 281057152.128 [s; MET] UTC: 2009-11-27T23:25:45.805160 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 36.5708005072054 Dec: -18.9537141498341 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 17.95 Image Trigger?: NO Rate S/N Ratio: 108.300507847378 [ if not an image trigger ] Image S/N Ratio: 17.95 Analysis Position: [ source = BAT ] RA: 36.5708005072054 Dec: -18.9537141498341 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: Dec: [deg; J2000] { 00h 00m 00.0s , +00d 00' 00.0" } +/- -inf [arcmin] (estimated 90% radius based on SNR) +/- 0 [arcmin] (formal 1-sigma fit error) SNR: Angular difference between the analysis and refined position is 2434.384647 arcmin Partial Coding Fraction: 0.04443359 [ including projection effects ] Duration T90: 6.9559999704361 +/- 0.150359555029189 Measured from: -0.11599999666214 to: 6.83999997377396 [s; relative to TRIGTIME] T50: 3.83999991416931 +/- 0.468892330574499 Measured from: 0.340000033378601 to: 4.17999994754791 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: -0.251999974250793 to: 0.748000025749207 [s; relative to TRIGTIME] Total Fluence Measured from: -0.371999979019165 to: 7.19600003957748 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 4.483462 5.065744 3.271748 0.727281 0.149998 0.159399 0.132547 0.092669 [error] Peak 1.277927 1.731821 1.296548 0.308684 0.073477 0.085347 0.076522 0.046499 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 7.568 -0.372 7.196 T90 6.956 -0.116 6.840 T50 3.840 0.340 4.180 Peak 1.000 -0.252 0.748 ====== 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 -2.023 -0.072 0.071 - - - 1.23e-01 -4.94e-03 4.92e-03 56.080 57 CPL -1.797 -0.272 0.288 46.374 N/A N/A 1.58e-01 N/A N/A 54.080 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 -1.830 -0.095 0.094 - - - 3.25e-01 -1.90e-02 1.89e-02 59.200 57 CPL -1.330 -0.382 0.415 69.588 -12.879 56.021 5.75e-01 -1.99e-01 3.38e-01 54.110 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 1.94e-06 2.60e-06 2.56e-06 4.52e-06 8.58e-06 1.16e-05 erg/cm2 90%_error_low -1.29e-07 -1.04e-07 -1.37e-07 -4.97e-07 -3.34e-07 -6.16e-07 erg/cm2 90%_error_hi 1.32e-07 1.04e-07 1.37e-07 5.34e-07 3.34e-07 6.37e-07 erg/cm2 Peak flux PL 1.84e+01 1.52e+01 8.57e+00 7.12e+00 4.53e+01 4.93e+01 ph/cm2/s 90%_error_low -1.68e+00 -8.96e-01 -6.24e-01 -9.77e-01 -2.69e+00 -2.76e+00 ph/cm2/s 90%_error_hi 1.73e+00 8.93e-01 6.19e-01 1.05e+00 2.69e+00 2.76e+00 ph/cm2/s Fluence CPL N/A N/A N/A N/A N/A N/A erg/cm2 90%_error_low -1.29e-07 -1.04e-07 -1.37e-07 -4.97e-07 -3.34e-07 -6.16e-07 erg/cm2 90%_error_hi 1.32e-07 1.04e-07 1.37e-07 5.34e-07 3.34e-07 6.37e-07 erg/cm2 Peak flux CPL 1.67e+01 1.59e+01 9.05e+00 4.51e+00 4.43e+01 4.61e+01 ph/cm2/s 90%_error_low -2.07e+00 -1.04e+00 -7.35e-01 -1.33e+00 -2.78e+00 -3.21e+00 ph/cm2/s 90%_error_hi 2.12e+00 1.06e+00 7.49e-01 1.93e+00 2.79e+00 3.40e+00 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 36.5799 -18.9458 0.0067 52.4505 21.8624 14.3704741 29.083 TRIG_00377179 Foreground time interval of the image: -0.368 8.076 (delta_t = 8.444 [sec]) Background time interval of the image: -107.403 -0.368 (delta_t = 107.035 [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 -0.372 sec. to 7.196 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -2.0231 ( -0.0723726 0.0713433 ) Norm@50keV : 0.122686 ( -0.00493974 0.00492055 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 56.08 using 59 PHA bins. # Reduced chi-squared = 0.9838 for 57 degrees of freedom # Null hypothesis probability = 5.096450e-01 Photon flux (15-150 keV) in 7.568 sec: 18.6025 ( -0.8042 0.8082 ) ph/cm2/s Energy fluence (15-150 keV) : 8.5753e-06 ( -3.33899e-07 3.34359e-07 ) ergs/cm2
Time interval is from -0.372 sec. to 7.196 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.7971 ( -0.271697 0.288079 ) Epeak [keV] : 46.3739 ( ) Norm@50keV : 0.158154 ( ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 54.08 using 59 PHA bins. # Reduced chi-squared = 0.9657 for 56 degrees of freedom # Null hypothesis probability = 5.479355e-01 Photon flux (15-150 keV) in 7.568 sec: 18.2815 ( -0.8828 0.8883 ) ph/cm2/s Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Time interval is from -0.252 sec. to 0.748 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.82982 ( -0.0953901 0.0935341 ) Norm@50keV : 0.324997 ( -0.0189546 0.0188702 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 59.20 using 59 PHA bins. # Reduced chi-squared = 1.039 for 57 degrees of freedom # Null hypothesis probability = 3.952485e-01 Photon flux (15-150 keV) in 1 sec: 45.3147 ( -2.6874 2.6936 ) ph/cm2/s Energy fluence (15-150 keV) : 2.98985e-06 ( -1.75617e-07 1.75998e-07 ) ergs/cm2
Time interval is from -0.252 sec. to 0.748 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.32972 ( -0.38241 0.414863 ) Epeak [keV] : 69.5879 ( -12.8792 56.0208 ) Norm@50keV : 0.574528 ( -0.198951 0.337812 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 54.11 using 59 PHA bins. # Reduced chi-squared = 0.9663 for 56 degrees of freedom # Null hypothesis probability = 5.466949e-01 Photon flux (15-150 keV) in 1 sec: 44.3102 ( -2.7803 2.7945 ) ph/cm2/s Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
T90 = 6.956 sec. Hardness ratio (energy fluence ratio) = 0.984146890525
S(15-50 keV) = 4.540768e-06 S(50-150 keV) = 4.034577e-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 = 1.207336881097049E+00, IMY = -4.844252725241740E-01
Time interval of the image: -107.403400 -0.372000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 135.5210 -40.5457 0.8 33.9 -134.8 2.6375 15.0 0.6 Vela X-1 61.7521 -22.8501 2.1 29.8 33.5 0.7745 5.5 ------ UNKNOWN 34.7730 -29.0118 2.4 49.8 9.2 1.5221 4.7 ------ UNKNOWN 141.9736 0.7523 2.6 56.9 174.1 3.1139 4.5 ------ UNKNOWN 22.5161 -36.5270 2.3 56.9 -4.0 3.0899 5.0 ------ UNKNOWN
Time interval of the image: -0.372000 7.196000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 135.5593 -40.5970 5.1 34.0 -134.7 -0.1146 -2.3 2.9 Vela X-1 36.5808 -18.9477 0.5 52.4 21.9 14.1869 22.8 ------ UNKNOWN 78.6121 -25.7826 2.4 15.1 47.8 0.2709 4.8 ------ UNKNOWN 95.0499 -25.0558 2.4 8.6 120.2 0.2210 4.8 ------ UNKNOWN 143.9630 -1.4028 2.6 57.0 177.6 0.9226 4.5 ------ UNKNOWN 157.7131 -31.6391 2.7 53.2 -142.3 0.7675 4.3 ------ UNKNOWN
Time interval of the image: 900.396600 1001.916000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 135.5373 -40.5490 1.4 34.2 -82.9 1.8214 8.2 0.5 Vela X-1 118.6406 32.0070 2.5 47.1 142.0 1.9050 4.6 ------ UNKNOWN 81.5503 -29.2417 2.7 30.4 8.2 0.5455 4.3 ------ UNKNOWN 90.8099 -26.2079 2.5 21.7 6.2 0.5188 4.6 ------ UNKNOWN 110.9867 -18.4630 2.9 4.2 -57.2 0.4140 4.1 ------ UNKNOWN 164.3298 7.9234 2.6 58.1 -156.8 2.7949 4.5 ------ UNKNOWN