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 Sep 11 20:58:37 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger708598
======================================================================
Trigger: 00708598 Segment: 000
BAT Trigger Time: 492954328.448 [s; MET]
Trigger Stop: 492954329.472 [s; MET]
UTC: 2016-08-15T11:45:11.734540 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 288.686231783051 Dec: 84.2999980928292 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 12.55
Image Trigger?: NO
Rate S/N Ratio: 29.3938769133981 [ if not an image trigger ]
Image S/N Ratio: 12.55
Analysis Position: [ source = BAT ]
RA: 288.686231783051 Dec: 84.2999980928292 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 288.616285136508 Dec: 84.2984506938288 [deg; J2000]
{ 19h 14m 27.9s , +84d 17' 54.4" }
+/- 0.969787085396543 [arcmin] (estimated 90% radius based on SNR)
+/- 0.335371393467033 [arcmin] (formal 1-sigma fit error)
SNR: 31.7798687681838
Angular difference between the analysis and refined position is 0.427095 arcmin
Partial Coding Fraction: 0.4101562 [ including projection effects ]
Duration
T90: 8.56799989938736 +/- 1.8342955655889
Measured from: -4.25999999046326
to: 4.3079999089241 [s; relative to TRIGTIME]
T50: 2.87199997901917 +/- 0.291204389676345
Measured from: -0.156000018119812
to: 2.71599996089935 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 2.14399999380112
to: 3.14399999380112 [s; relative to TRIGTIME]
Total Fluence
Measured from: -6.40799999237061
to: 5.19599997997284 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.655528 0.914291 0.630525 0.122144
0.038439 0.041549 0.036145 0.028525 [error]
Peak 0.145093 0.191871 0.159921 0.030142
0.013068 0.014501 0.012825 0.009217 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 11.604 -6.408 5.196
T90 8.568 -4.260 4.308
T50 2.872 -0.156 2.716
Peak 1.000 2.144 3.144
====== 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 -1.725 -0.092 0.091 - - - 1.36e-02 -7.55e-04 7.52e-04 60.000 57
CPL -0.961 -0.395 0.434 67.728 -9.676 21.670 3.31e-02 -1.20e-02 2.11e-02 48.200 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 -1.570 -0.133 0.131 - - - 3.68e-02 -2.90e-03 2.90e-03 33.770 57
CPL -1.134 -0.489 0.587 106.504 -35.149 -106.504 5.96e-02 -2.42e-02 5.23e-02 31.780 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 2.49e-07 4.00e-07 4.83e-07 1.15e-06 1.46e-06 2.28e-06 erg/cm2
90%_error_low -2.15e-08 -2.18e-08 -3.49e-08 -1.64e-07 -8.38e-08 -1.96e-07 erg/cm2
90%_error_hi 2.21e-08 2.18e-08 3.49e-08 1.80e-07 8.41e-08 2.08e-07 erg/cm2
Peak flux PL 1.62e+00 1.56e+00 1.05e+00 1.11e+00 4.69e+00 5.35e+00 ph/cm2/s
90%_error_low -2.14e-01 -1.32e-01 -1.02e-01 -2.04e-01 -3.79e-01 -4.14e-01 ph/cm2/s
90%_error_hi 2.24e-01 1.31e-01 1.01e-01 2.28e-01 3.80e-01 4.14e-01 ph/cm2/s
Fluence CPL 2.19e-07 4.30e-07 5.05e-07 4.42e-07 1.39e-06 1.60e-06 erg/cm2
90%_error_low -2.61e-08 -2.69e-08 -3.93e-08 -1.56e-07 -9.07e-08 -1.80e-07 erg/cm2
90%_error_hi 2.66e-08 2.74e-08 3.97e-08 2.56e-07 9.11e-08 2.64e-07 erg/cm2
Peak flux CPL 1.48e+00 1.62e+00 1.11e+00 7.36e-01 4.60e+00 4.94e+00 ph/cm2/s
90%_error_low -2.70e-01 -1.50e-01 -1.22e-01 -2.82e-01 -3.92e-01 -5.25e-01 ph/cm2/s
90%_error_hi 2.79e-01 1.53e-01 1.25e-01 4.56e-01 3.93e-01 6.19e-01 ph/cm2/s
======================================================================
Special notes of this burst