====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Mon Jan 13 02:41:57 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger529486 ====================================================================== Trigger: 00529486 Segment: 000 BAT Trigger Time: 365587261.12 [s; MET] Trigger Stop: 365587262.144 [s; MET] UTC: 2012-08-02T08:00:51.627560 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 44.849140054444 Dec: 13.7572427303336 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 11.33 Image Trigger?: NO Rate S/N Ratio: 21.0713075057055 [ if not an image trigger ] Image S/N Ratio: 11.33 Analysis Position: [ source = BAT ] RA: 44.849140054444 Dec: 13.7572427303336 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 44.8326538069182 Dec: 13.7619993868439 [deg; J2000] { 02h 59m 19.8s , +13d 45' 43.2" } +/- 1.13382383429005 [arcmin] (estimated 90% radius based on SNR) +/- 0.342535758608551 [arcmin] (formal 1-sigma fit error) SNR: 25.4212042360909 Angular difference between the analysis and refined position is 1.002280 arcmin Partial Coding Fraction: 0.5625 [ including projection effects ] Duration T90: 50.2880000472069 +/- 31.035039852921 Measured from: -31.6000000238419 to: 18.688000023365 [s; relative to TRIGTIME] T50: 7.64800000190735 +/- 0.967040852280425 Measured from: 2.35199999809265 to: 10 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 7.93999999761581 to: 8.93999999761581 [s; relative to TRIGTIME] Total Fluence Measured from: -35.6800000071526 to: 27.9520000219345 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.950069 1.180391 0.669669 0.110614 0.051474 0.053116 0.046011 0.038417 [error] Peak 0.097523 0.144923 0.088065 0.017322 0.007972 0.008607 0.007475 0.005305 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 63.632 -35.680 27.952 T90 50.288 -31.600 18.688 T50 7.648 2.352 10.000 Peak 1.000 7.940 8.940 ====== 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: CPL) 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 -1.845 -0.102 0.101 - - - 2.97e-03 -1.82e-04 1.80e-04 58.680 57 CPL -1.218 -0.442 0.498 57.258 -9.441 29.947 6.43e-03 -2.66e-03 5.34e-03 52.570 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 -1.659 -0.124 0.122 - - - 2.31e-02 -1.76e-03 1.75e-03 60.780 57 CPL -1.194 -0.470 0.531 84.056 -23.322 905.078 4.04e-02 -1.70e-02 3.53e-02 57.910 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 3.34e-07 4.97e-07 5.54e-07 1.16e-06 1.74e-06 2.55e-06 erg/cm2 90%_error_low -2.91e-08 -2.75e-08 -4.58e-08 -1.88e-07 -1.07e-07 -2.33e-07 erg/cm2 90%_error_hi 2.98e-08 2.75e-08 4.60e-08 2.11e-07 1.08e-07 2.50e-07 erg/cm2 Peak flux PL 1.11e+00 1.02e+00 6.44e-01 6.25e-01 3.03e+00 3.40e+00 ph/cm2/s 90%_error_low -1.28e-01 -7.56e-02 -6.21e-02 -1.13e-01 -2.21e-01 -2.44e-01 ph/cm2/s 90%_error_hi 1.32e-01 7.53e-02 6.18e-02 1.26e-01 2.21e-01 2.44e-01 ph/cm2/s Fluence CPL 3.06e-07 5.30e-07 5.56e-07 4.63e-07 1.64e-06 1.86e-06 erg/cm2 90%_error_low -3.51e-08 -3.56e-08 -5.07e-08 -2.04e-07 -1.24e-07 -2.41e-07 erg/cm2 90%_error_hi 3.54e-08 3.64e-08 5.02e-08 3.97e-07 1.25e-07 4.09e-07 erg/cm2 Peak flux CPL 1.03e+00 1.07e+00 6.66e-01 3.70e-01 2.98e+00 3.13e+00 ph/cm2/s 90%_error_low -1.50e-01 -9.09e-02 -6.81e-02 -1.53e-01 -2.28e-01 -2.83e-01 ph/cm2/s 90%_error_hi 1.53e-01 9.35e-02 6.93e-02 2.65e-01 2.28e-01 3.34e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 44.8327 13.7620 0.0076 32.3021 -45.9966 2.7447121 25.421 TRIG_00529486 Foreground time interval of the image: -35.680 15.981 (delta_t = 51.661 [sec]) Background time interval of the image: -239.120 -35.680 (delta_t = 203.440 [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 -35.680 sec. to 27.952 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.84527 ( -0.102385 0.100588 ) Norm@50keV : 2.96943E-03 ( -0.000181775 0.000180288 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 58.68 using 59 PHA bins. # Reduced chi-squared = 1.030 for 57 degrees of freedom # Null hypothesis probability = 4.135033e-01 Photon flux (15-150 keV) in 63.63 sec: 0.416609 ( -0.023586 0.023623 ) ph/cm2/s Energy fluence (15-150 keV) : 1.73769e-06 ( -1.06661e-07 1.07503e-07 ) ergs/cm2
Time interval is from -35.680 sec. to 27.952 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.21814 ( -0.441775 0.497502 ) Epeak [keV] : 57.2582 ( -9.44077 29.9469 ) Norm@50keV : 6.42731E-03 ( -0.00265519 0.00534251 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 52.57 using 59 PHA bins. # Reduced chi-squared = 0.9388 for 56 degrees of freedom # Null hypothesis probability = 6.054401e-01 Photon flux (15-150 keV) in 63.63 sec: 0.402916 ( -0.025463 0.02541 ) ph/cm2/s Energy fluence (15-150 keV) : 1.6423e-06 ( -1.23912e-07 1.25295e-07 ) ergs/cm2
Time interval is from 7.940 sec. to 8.940 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.65906 ( -0.124378 0.122207 ) Norm@50keV : 2.31435E-02 ( -0.00175725 0.00174509 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 60.78 using 59 PHA bins. # Reduced chi-squared = 1.066 for 57 degrees of freedom # Null hypothesis probability = 3.412683e-01 Photon flux (15-150 keV) in 1 sec: 3.03117 ( -0.2212 0.22144 ) ph/cm2/s Energy fluence (15-150 keV) : 2.1508e-07 ( -1.72054e-08 1.73381e-08 ) ergs/cm2
Time interval is from 7.940 sec. to 8.940 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.19407 ( -0.469514 0.531042 ) Epeak [keV] : 84.0564 ( -23.3219 905.077 ) Norm@50keV : 4.04227E-02 ( -0.0170438 0.0353323 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 57.91 using 59 PHA bins. # Reduced chi-squared = 1.034 for 56 degrees of freedom # Null hypothesis probability = 4.045862e-01 Photon flux (15-150 keV) in 1 sec: 2.97663 ( -0.22805 0.22804 ) ph/cm2/s Energy fluence (15-150 keV) : 2.08166e-07 ( -1.88314e-08 1.87839e-08 ) ergs/cm2
T90 = 50.288 sec. Hardness ratio (energy fluence ratio) = 1.04983245173
S(15-50 keV) = 8.360284e-07 S(50-150 keV) = 8.062526e-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 = 4.392073192457991E-01, IMY = 4.547580763038182E-01
Time interval of the image: -239.120000 -35.680000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 326.3360 38.3329 27.1 42.0 157.3 0.1313 0.4 7.8 Cyg X-2 331.1518 50.3189 2.7 42.3 175.9 0.9857 4.3 ------ UNKNOWN 45.8008 -17.2387 2.9 51.6 -8.4 1.3067 4.1 ------ UNKNOWN
Time interval of the image: -35.680000 15.980590 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 326.2827 38.1698 9.9 42.0 157.1 0.1642 1.2 10.5 Cyg X-2 350.0969 10.1989 1.8 24.2 97.7 0.6013 6.4 ------ UNKNOWN 49.3809 -21.2437 2.6 56.8 -8.3 1.3935 4.4 ------ UNKNOWN 44.8327 13.7620 0.5 32.3 -46.0 2.7446 25.4 ------ UNKNOWN 35.7111 39.7690 2.2 26.6 -102.1 0.5136 5.3 ------ UNKNOWN
Time interval of the image: 68.580590 879.380600 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6279 22.0115 0.5 37.7 -91.4 33.1795 24.7 0.3 Crab 14.3382 12.9831 2.7 29.7 109.1 2.8728 4.3 ------ UNKNOWN 39.9335 0.8464 3.0 13.8 37.9 1.3505 3.8 ------ UNKNOWN 57.5995 -40.2271 2.5 55.3 5.1 7.2840 4.6 ------ UNKNOWN 58.4875 -41.5812 3.1 56.7 4.7 7.1237 3.7 ------ UNKNOWN 36.3700 41.1525 2.3 28.4 -176.6 2.0023 4.9 ------ UNKNOWN 77.5823 -14.2171 2.7 42.8 -33.6 2.7597 4.2 ------ UNKNOWN