====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Mon Jan 20 10:02:02 EST 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger278693 ====================================================================== Trigger: 00278693 Segment: 000 BAT Trigger Time: 200122560 [s; MET] Trigger Stop: 200122624 [s; MET] UTC: 2007-05-06T05:35:58.063600 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 347.217597658185 Dec: 10.7283397482321 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 8.48 Image Trigger?: YES Rate S/N Ratio: 0 [ if not an image trigger ] Image S/N Ratio: 8.48 Analysis Position: [ source = BAT ] RA: 347.217597658185 Dec: 10.7283397482321 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 347.219739029459 Dec: 10.7108009152786 [deg; J2000] { 23h 08m 52.7s , +10d 42' 38.9" } +/- 2.15721488756149 [arcmin] (estimated 90% radius based on SNR) +/- 0.94215629109108 [arcmin] (formal 1-sigma fit error) SNR: 10.142097842926 Angular difference between the analysis and refined position is 1.059875 arcmin Partial Coding Fraction: 0.96875 [ including projection effects ] Duration T90: 5.99200001358986 +/- 1.40688165181272 Measured from: 4.17599999904633 to: 10.1680000126362 [s; relative to TRIGTIME] T50: 2.44400000572205 +/- 0.704556592365783 Measured from: 5.3120000064373 to: 7.75600001215935 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 6.15599998831749 to: 7.15599998831749 [s; relative to TRIGTIME] Total Fluence Measured from: 3.78400000929832 to: 11.1839999854565 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.126807 0.162877 0.107280 0.004020 0.013052 0.013905 0.012558 0.012102 [error] Peak 0.037965 0.053625 0.027751 0.000949 0.005103 0.005397 0.004791 0.004463 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 7.400 3.784 11.184 T90 5.992 4.176 10.168 T50 2.444 5.312 7.756 Peak 1.000 6.156 7.156 ====== 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: 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 -1.728 -0.179 0.172 - - - 3.36e-03 -3.88e-04 3.82e-04 85.870 57 CPL -0.768 -0.764 0.928 55.123 -11.291 49.188 1.17e-02 -7.28e-03 2.77e-02 81.090 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 -1.682 -0.210 0.202 - - - 7.51e-03 -1.07e-03 1.05e-03 61.190 57 CPL -0.034 -1.037 1.393 49.225 -8.657 19.518 6.80e-02 -6.80e-02 3.96e-01 52.770 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 3.93e-08 6.29e-08 7.60e-08 1.80e-07 2.30e-07 3.58e-07 erg/cm2 90%_error_low -5.55e-09 -6.13e-09 -1.18e-08 -5.05e-08 -2.75e-08 -6.36e-08 erg/cm2 90%_error_hi 5.70e-09 6.13e-09 1.20e-08 6.24e-08 2.81e-08 7.32e-08 erg/cm2 Peak flux PL 3.68e-01 3.33e-01 2.07e-01 1.97e-01 9.91e-01 1.11e+00 ph/cm2/s 90%_error_low -6.43e-02 -4.12e-02 -3.75e-02 -6.07e-02 -1.22e-01 -1.42e-01 ph/cm2/s 90%_error_hi 6.66e-02 4.12e-02 3.80e-02 7.56e-02 1.22e-01 1.43e-01 ph/cm2/s Fluence CPL 3.58e-08 7.03e-08 7.37e-08 4.20e-08 2.07e-07 2.22e-07 erg/cm2 90%_error_low -6.37e-09 -8.44e-09 -1.45e-08 -2.78e-08 -3.00e-08 -4.13e-08 erg/cm2 90%_error_hi 6.40e-09 8.78e-09 1.37e-08 8.40e-08 3.23e-08 8.77e-08 erg/cm2 Peak flux CPL 3.18e-01 4.01e-01 1.98e-01 3.05e-02 9.44e-01 9.48e-01 ph/cm2/s 90%_error_low -7.34e-02 -5.92e-02 -5.35e-02 -3.05e-02 -1.23e-01 -1.26e-01 ph/cm2/s 90%_error_hi 7.47e-02 6.27e-02 4.82e-02 6.17e-02 1.24e-01 1.31e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 347.2197 10.7108 0.0189 15.3308 21.9860 0.3688070 10.142 TRIG_00278693 Foreground time interval of the image: 3.784 11.184 (delta_t = 7.400 [sec]) Background time interval of the image: -2.899 3.784 (delta_t = 6.683 [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 3.784 sec. to 11.184 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.7276 ( -0.17918 0.172489 ) Norm@50keV : 3.35904E-03 ( -0.000388084 0.000381618 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 85.87 using 59 PHA bins. # Reduced chi-squared = 1.507 for 57 degrees of freedom # Null hypothesis probability = 8.015739e-03 Photon flux (15-150 keV) in 7.4 sec: 0.450526 ( -0.043928 0.04393 ) ph/cm2/s Energy fluence (15-150 keV) : 2.29716e-07 ( -2.74832e-08 2.80892e-08 ) ergs/cm2
Time interval is from 3.784 sec. to 11.184 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.767538 ( -0.763956 0.927762 ) Epeak [keV] : 55.1234 ( -11.291 49.188 ) Norm@50keV : 1.17077E-02 ( -0.00728107 0.027668 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 81.09 using 59 PHA bins. # Reduced chi-squared = 1.448 for 56 degrees of freedom # Null hypothesis probability = 1.584200e-02 Photon flux (15-150 keV) in 7.4 sec: 0.433398 ( -0.045528 0.045712 ) ph/cm2/s Energy fluence (15-150 keV) : 2.07191e-07 ( -3.00164e-08 3.23123e-08 ) ergs/cm2
Time interval is from 6.156 sec. to 7.156 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.68178 ( -0.209863 0.202266 ) Norm@50keV : 7.51033E-03 ( -0.00107067 0.00105455 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 61.19 using 59 PHA bins. # Reduced chi-squared = 1.073 for 57 degrees of freedom # Null hypothesis probability = 3.281119e-01 Photon flux (15-150 keV) in 1 sec: 0.991229 ( -0.122412 0.122411 ) ph/cm2/s Energy fluence (15-150 keV) : 6.96578e-08 ( -1.03653e-08 1.06208e-08 ) ergs/cm2
Time interval is from 6.156 sec. to 7.156 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.0341636 ( -1.0375 1.3931 ) Epeak [keV] : 49.2255 ( -8.65653 19.5185 ) Norm@50keV : 6.80462E-02 ( -0.0680545 0.396301 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 52.77 using 59 PHA bins. # Reduced chi-squared = 0.9423 for 56 degrees of freedom # Null hypothesis probability = 5.980254e-01 Photon flux (15-150 keV) in 1 sec: 0.944131 ( -0.123123 0.124109 ) ph/cm2/s Energy fluence (15-150 keV) : 5.90351e-08 ( -1.0354e-08 1.16536e-08 ) ergs/cm2
T90 = N/A sec. Hardness ratio (energy fluence ratio) = N/A
S(15-50 keV) = N/A S(50-150 keV) = N/A
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 = 2.542102395409447E-01, IMY = -1.026354651012632E-01
Time interval of the image: -2.899410 3.784000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 308.2713 40.8802 7.8 40.3 124.1 -0.1127 -1.5 8.5 Cyg X-3 325.9742 38.4206 20.9 26.5 126.5 -0.0178 -0.6 11.0 Cyg X-2 298.6504 53.8694 2.7 49.3 140.3 0.5398 4.2 ------ UNKNOWN
Time interval of the image: 3.784000 11.184000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 308.1776 40.8366 8.5 40.4 124.0 0.1581 1.4 7.6 Cyg X-3 326.2007 38.4752 12.7 26.4 126.7 0.0457 0.9 9.3 Cyg X-2 347.2197 10.7108 1.1 15.3 22.0 0.3688 10.1 ------ UNKNOWN 351.7926 -31.8737 2.1 56.9 0.9 1.2450 5.6 ------ UNKNOWN
Time interval of the image: 113.300590 248.423100 250.000000 963.066800 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 308.0079 40.8292 11.5 45.8 150.7 1.2555 1.0 8.7 Cyg X-3 326.2732 38.4214 2.9 33.4 162.1 2.3681 4.0 7.7 Cyg X-2 332.3388 -27.6095 3.7 41.0 33.0 2.4862 3.1 ------ UNKNOWN 328.7742 24.4580 3.0 22.3 143.2 1.6593 3.9 ------ UNKNOWN 28.6356 21.6621 4.8 41.1 -98.1 6.9554 2.4 ------ UNKNOWN