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: Mon Jan 13 21:36:52 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger458059
======================================================================
Trigger: 00458059 Segment: 000
BAT Trigger Time: 333336647.744 [s; MET]
Trigger Stop: 333336648.768 [s; MET]
UTC: 2011-07-26T01:30:40.549800 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 286.750618690009 Dec: 56.0532972548459 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.6
Image Trigger?: NO
Rate S/N Ratio: 10.6770782520313 [ if not an image trigger ]
Image S/N Ratio: 8.6
Analysis Position: [ source = BAT ]
RA: 286.750618690009 Dec: 56.0532972548459 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 286.713005323196 Dec: 56.069723645654 [deg; J2000]
{ 19h 06m 51.1s , +56d 04' 11.0" }
+/- 1.66426926961846 [arcmin] (estimated 90% radius based on SNR)
+/- 0.693414734794835 [arcmin] (formal 1-sigma fit error)
SNR: 14.6921270122615
Angular difference between the analysis and refined position is 1.599662 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 5.15599995851517 +/- 1.10730662075066
Measured from: -0.580000042915344
to: 4.57599991559982 [s; relative to TRIGTIME]
T50: 2.05599999427795 +/- 0.584564735156271
Measured from: 0.655999958515167
to: 2.71199995279312 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.611999988555908
to: 1.61199998855591 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.864000022411346
to: 5.01199996471405 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.150572 0.202839 0.103417 -0.010569
0.015323 0.015973 0.014201 0.013447 [error]
Peak 0.031689 0.064982 0.031691 -0.006386
0.006508 0.006909 0.005850 0.005530 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 5.876 -0.864 5.012
T90 5.156 -0.580 4.576
T50 2.056 0.656 2.712
Peak 1.000 0.612 1.612
====== 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 -1.859 -0.182 0.174 - - - 4.54e-03 -5.55e-04 5.46e-04 87.710 57
CPL -0.638 -0.779 0.956 46.533 -8.109 15.556 2.29e-02 -1.46e-02 5.96e-02 79.850 56
=== 1-s peak 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 -1.646 -0.244 0.237 - - - 7.73e-03 -1.30e-03 1.28e-03 75.330 57
CPL 0.324 -1.216 1.734 49.985 -8.971 18.662 1.02e-01 -1.02e-01 9.46e-01 66.310 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 4.77e-08 7.05e-08 7.78e-08 1.61e-07 2.45e-07 3.57e-07 erg/cm2
90%_error_low -6.47e-09 -6.96e-09 -1.27e-08 -4.68e-08 -2.96e-08 -6.20e-08 erg/cm2
90%_error_hi 6.62e-09 6.96e-09 1.30e-08 5.82e-08 3.03e-08 7.10e-08 erg/cm2
Peak flux PL 3.66e-01 3.38e-01 2.16e-01 2.12e-01 1.01e+00 1.13e+00 ph/cm2/s
90%_error_low -7.71e-02 -5.07e-02 -4.53e-02 -7.43e-02 -1.50e-01 -1.75e-01 ph/cm2/s
90%_error_hi 8.03e-02 5.06e-02 4.59e-02 9.56e-02 1.50e-01 1.77e-01 ph/cm2/s
Fluence CPL 4.28e-08 8.11e-08 7.32e-08 2.79e-08 2.18e-07 2.25e-07 erg/cm2
90%_error_low -7.41e-09 -9.57e-09 -1.63e-08 -1.88e-08 -3.03e-08 -3.59e-08 erg/cm2
90%_error_hi 7.43e-09 9.90e-09 1.55e-08 4.98e-08 3.29e-08 5.76e-08 erg/cm2
Peak flux CPL 3.00e-01 4.20e-01 2.12e-01 2.79e-02 9.56e-01 9.59e-01 ph/cm2/s
90%_error_low -8.92e-02 -7.17e-02 -6.33e-02 -2.79e-02 -1.50e-01 -1.52e-01 ph/cm2/s
90%_error_hi 9.17e-02 7.68e-02 5.82e-02 6.31e-02 1.51e-01 1.56e-01 ph/cm2/s
======================================================================
Special notes of this burst