Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done using the HEASARC data.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Sun Jan 12 02:33:24 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger557274
======================================================================
Trigger: 00557274 Segment: 000
BAT Trigger Time: 391931983.296 [s; MET]
Trigger Stop: 391931991.488 [s; MET]
UTC: 2013-06-03T05:59:32.666180 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 86.9541212664379 Dec: 82.9339151120058 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.2
Image Trigger?: NO
Rate S/N Ratio: 9 [ if not an image trigger ]
Image S/N Ratio: 11.2
Analysis Position: [ source = BAT ]
RA: 86.9541212664379 Dec: 82.9339151120058 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 86.9304984442012 Dec: 82.9109451215811 [deg; J2000]
{ 05h 47m 43.3s , +82d 54' 39.4" }
+/- 1.25997412600766 [arcmin] (estimated 90% radius based on SNR)
+/- 0.382512649525744 [arcmin] (formal 1-sigma fit error)
SNR: 21.8647556065317
Angular difference between the analysis and refined position is 1.389220 arcmin
Partial Coding Fraction: 0.984375 [ including projection effects ]
Duration
T90: 69.1279999613762 +/- 23.4262938267232
Measured from: -8.92800003290176
to: 60.1999999284744 [s; relative to TRIGTIME]
T50: 32.4239999055862 +/- 4.02004972002492
Measured from: 5.68400001525879
to: 38.107999920845 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 11.2680000066757
to: 12.2680000066757 [s; relative to TRIGTIME]
Total Fluence
Measured from: -20.811999976635
to: 104.980000019073 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.271948 1.296522 0.817463 0.102862
0.063729 0.066677 0.059953 0.054494 [error]
Peak 0.029284 0.030868 0.026124 0.011178
0.005958 0.006277 0.005551 0.004993 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 125.792 -20.812 104.980
T90 69.128 -8.928 60.200
T50 32.424 5.684 38.108
Peak 1.000 11.268 12.268
====== 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 -1.835 -0.122 0.119 - - - 1.64e-03 -1.15e-04 1.14e-04 40.940 57
CPL -1.705 -0.246 0.469 104.195 N/A N/A 1.93e-03 N/A N/A 40.680 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 -1.461 -0.341 0.335 - - - 6.06e-03 -1.23e-03 1.20e-03 55.400 57
CPL -1.255 -1.397 1.432 171.420 -171.420 -171.420 7.80e-03 -7.80e-03 3.65e-02 55.310 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 3.62e-07 5.43e-07 6.09e-07 1.29e-06 1.90e-06 2.81e-06 erg/cm2
90%_error_low -3.51e-08 -3.25e-08 -5.96e-08 -2.48e-07 -1.34e-07 -3.04e-07 erg/cm2
90%_error_hi 3.62e-08 3.25e-08 6.00e-08 2.86e-07 1.36e-07 3.35e-07 erg/cm2
Peak flux PL 2.40e-01 2.47e-01 1.80e-01 2.10e-01 7.49e-01 8.77e-01 ph/cm2/s
90%_error_low -7.30e-02 -4.93e-02 -4.63e-02 -9.18e-02 -1.42e-01 -1.74e-01 ph/cm2/s
90%_error_hi 7.82e-02 4.86e-02 4.59e-02 1.29e-01 1.42e-01 1.78e-01 ph/cm2/s
Fluence CPL 3.68e-07 5.11e-07 6.09e-07 1.27e-06 1.76e-06 2.69e-06 erg/cm2
90%_error_low -4.04e-08 -5.45e-08 -6.10e-08 -7.72e-07 -1.78e-07 -7.90e-07 erg/cm2
90%_error_hi 2.44e-08 4.38e-08 6.13e-08 4.03e-07 1.37e-07 2.09e-07 erg/cm2
Peak flux CPL 2.33e-01 2.53e-01 1.82e-01 1.59e-01 7.43e-01 8.28e-01 ph/cm2/s
90%_error_low -8.36e-02 -5.43e-02 -4.80e-02 -1.59e-01 -1.47e-01 -2.08e-01 ph/cm2/s
90%_error_hi 7.98e-02 6.17e-02 5.01e-02 7.67e-02 1.46e-01 2.22e-01 ph/cm2/s
======================================================================
Special notes of this burst