====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Sun Jan 19 19:04:48 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger339852 ====================================================================== Trigger: 00339852 Segment: 000 BAT Trigger Time: 253564843.584 [s; MET] Trigger Stop: 253564843.712 [s; MET] UTC: 2009-01-13T18:40:39.170560 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 32.0733788955683 Dec: 33.4564341321039 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 7.58 Image Trigger?: NO Rate S/N Ratio: 8.83176086632785 [ if not an image trigger ] Image S/N Ratio: 7.58 Analysis Position: [ source = BAT ] RA: 32.0733788955683 Dec: 33.4564341321039 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 32.0679870213464 Dec: 33.4372091809347 [deg; J2000] { 02h 08m 16.3s , +33d 26' 14.0" } +/- 0.967989618383756 [arcmin] (estimated 90% radius based on SNR) +/- 0.261319581840484 [arcmin] (formal 1-sigma fit error) SNR: 31.8642055457509 Angular difference between the analysis and refined position is 1.184661 arcmin Partial Coding Fraction: 0.8046875 [ including projection effects ] Duration T90: 9.0959999859333 +/- 0.901669553693802 Measured from: -0.0919999778270721 to: 9.00400000810623 [s; relative to TRIGTIME] T50: 5.86800000071526 +/- 0.630250747851208 Measured from: 1.6240000128746 to: 7.49200001358986 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 1.45600000023842 to: 2.45600000023842 [s; relative to TRIGTIME] Total Fluence Measured from: -0.919999986886978 to: 9.95200002193451 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.342903 0.465117 0.336840 0.112902 0.020064 0.021205 0.019212 0.016371 [error] Peak 0.062566 0.106990 0.105127 0.036879 0.006457 0.007431 0.007232 0.005811 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 10.872 -0.920 9.952 T90 9.096 -0.092 9.004 T50 5.868 1.624 7.492 Peak 1.000 1.456 2.456 ====== 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 -1.532 -0.098 0.097 - - - 7.55e-03 -4.04e-04 4.03e-04 39.560 57 CPL -1.463 -0.243 0.336 394.628 -394.628 -394.628 8.17e-03 -1.00e-03 3.63e-03 39.620 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 -1.091 -0.122 0.123 - - - 2.14e-02 -1.50e-03 1.50e-03 55.220 57 CPL -0.882 -0.269 0.524 299.752 -299.752 -299.752 2.66e-02 -6.50e-03 1.90e-02 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 1.08e-07 1.95e-07 2.69e-07 7.75e-07 7.75e-07 1.35e-06 erg/cm2 90%_error_low -1.01e-08 -1.09e-08 -1.90e-08 -1.14e-07 -4.51e-08 -1.29e-07 erg/cm2 90%_error_hi 1.04e-08 1.08e-08 1.89e-08 1.27e-07 4.54e-08 1.39e-07 erg/cm2 Peak flux PL 5.94e-01 7.64e-01 7.17e-01 1.19e+00 2.47e+00 3.26e+00 ph/cm2/s 90%_error_low -8.17e-02 -6.55e-02 -5.68e-02 -1.91e-01 -1.78e-01 -2.47e-01 ph/cm2/s 90%_error_hi 8.56e-02 6.48e-02 5.64e-02 2.13e-01 1.79e-01 2.52e-01 ph/cm2/s Fluence CPL 1.08e-07 1.96e-07 2.70e-07 7.68e-07 7.73e-07 1.33e-06 erg/cm2 90%_error_low -1.23e-08 -1.17e-08 -1.76e-08 -3.57e-07 -4.99e-08 -3.41e-07 erg/cm2 90%_error_hi 8.60e-09 1.21e-08 2.01e-08 8.46e-08 4.67e-08 8.90e-08 erg/cm2 Peak flux CPL 5.66e-01 7.75e-01 7.35e-01 9.49e-01 2.46e+00 3.02e+00 ph/cm2/s 90%_error_low -1.03e-01 -7.03e-02 -6.78e-02 -3.69e-01 -1.84e-01 -4.17e-01 ph/cm2/s 90%_error_hi 9.40e-02 7.17e-02 7.06e-02 2.98e-01 1.84e-01 3.76e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 32.0680 33.4372 0.0060 30.7111 -10.4008 1.2824686 31.864 TRIG_00339852 Foreground time interval of the image: -0.920 9.317 (delta_t = 10.237 [sec]) Background time interval of the image: -62.683 -0.920 (delta_t = 61.763 [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 -0.920 sec. to 9.952 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.53192 ( -0.0977696 0.0971388 ) Norm@50keV : 7.54977E-03 ( -0.000403832 0.000402695 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 39.56 using 59 PHA bins. # Reduced chi-squared = 0.6941 for 57 degrees of freedom # Null hypothesis probability = 9.619273e-01 Photon flux (15-150 keV) in 10.87 sec: 0.950856 ( -0.051558 0.051694 ) ph/cm2/s Energy fluence (15-150 keV) : 7.74729e-07 ( -4.51377e-08 4.53952e-08 ) ergs/cm2
Time interval is from -0.920 sec. to 9.952 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.52951 ( -0.238867 0.339666 ) Epeak [keV] : 9992.88 ( -9991.05 -9991.05 ) Norm@50keV : 7.57100E-03 ( -0.000398008 0.00423593 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 39.56 using 59 PHA bins. # Reduced chi-squared = 0.7064 for 56 degrees of freedom # Null hypothesis probability = 9.528904e-01 Photon flux (15-150 keV) in 10.87 sec: 0.950054 ( -0.051133 0.052596 ) ph/cm2/s Energy fluence (15-150 keV) : 7.72947e-07 ( -4.98785e-08 4.6686e-08 ) ergs/cm2
Time interval is from 1.456 sec. to 2.456 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.09065 ( -0.122017 0.123483 ) Norm@50keV : 2.13505E-02 ( -0.00150262 0.00150121 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 55.22 using 59 PHA bins. # Reduced chi-squared = 0.9688 for 57 degrees of freedom # Null hypothesis probability = 5.420462e-01 Photon flux (15-150 keV) in 1 sec: 2.47432 ( -0.17844 0.17865 ) ph/cm2/s Energy fluence (15-150 keV) : 2.23919e-07 ( -1.73524e-08 1.74436e-08 ) ergs/cm2
Time interval is from 1.456 sec. to 2.456 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.881783 ( -0.268652 0.524362 ) Epeak [keV] : 299.752 ( -299.758 -299.758 ) Norm@50keV : 2.66463E-02 ( -0.00649666 0.0190121 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 54.66 using 59 PHA bins. # Reduced chi-squared = 0.9762 for 56 degrees of freedom # Null hypothesis probability = 5.255264e-01 Photon flux (15-150 keV) in 1 sec: 2.45515 ( -0.18401 0.18365 ) ph/cm2/s Energy fluence (15-150 keV) : 2.21595e-07 ( -1.84435e-08 1.82552e-08 ) ergs/cm2
T90 = 9.096 sec. Hardness ratio (energy fluence ratio) = 1.38331101132
S(15-50 keV) = 3.025528e-07 S(50-150 keV) = 4.721797e-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 = 5.842578615715518E-01, IMY = 1.072400552650537E-01
Time interval of the image: -62.683400 -0.920000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6563 22.0425 1.6 39.4 75.5 2.4565 7.1 2.1 Crab 63.2262 -43.6368 2.3 51.7 178.1 1.1593 5.0 ------ UNKNOWN
Time interval of the image: -0.920000 9.316600 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.7644 21.8968 9.0 39.5 75.7 0.2017 1.3 10.2 Crab 32.0680 33.4372 0.4 30.7 -10.4 1.2824 31.9 ------ UNKNOWN 52.4234 -47.8218 2.0 53.9 -171.4 0.5934 5.7 ------ UNKNOWN
Time interval of the image: 60.116600 550.416600 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 11.0868 79.0471 3.1 46.4 9.7 2.3473 3.8 ------ UNKNOWN 1.2801 1.3120 2.4 43.2 -116.5 6.8249 4.8 110.0 UNKNOWN 359.0764 3.2821 3.5 43.1 -112.2 5.4949 3.3 204.6 UNKNOWN