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: Fri Oct 19 18:29:40 EDT 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger855434
======================================================================
Trigger: 00855434 Segment: 000
BAT Trigger Time: 556743894.464 [s; MET]
Trigger Stop: 556743896.512 [s; MET]
UTC: 2018-08-23T19:04:32.988300 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 210.349060652558 Dec: 14.8842385340093 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.89
Image Trigger?: NO
Rate S/N Ratio: 11.7473401244707 [ if not an image trigger ]
Image S/N Ratio: 8.89
Analysis Position: [ source = BAT ]
RA: 210.349060652558 Dec: 14.8842385340093 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 210.358088177704 Dec: 14.90088367325 [deg; J2000]
{ 14h 01m 25.9s , +14d 54' 03.2" }
+/- 0.810258969368269 [arcmin] (estimated 90% radius based on SNR)
+/- 0.165745393539818 [arcmin] (formal 1-sigma fit error)
SNR: 41.0823937798566
Angular difference between the analysis and refined position is 1.127575 arcmin
Partial Coding Fraction: 0.9296875 [ including projection effects ]
Duration
T90: 80.2960000038147 +/- 6.89302403001873
Measured from: -29.2680000066757
to: 51.027999997139 [s; relative to TRIGTIME]
T50: 30.8960000276566 +/- 1.70345995600386
Measured from: -8.86000001430511
to: 22.0360000133514 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 18.3320000171661
to: 19.3320000171661 [s; relative to TRIGTIME]
Total Fluence
Measured from: -37.5319999456406
to: 72.0479999780655 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 3.468258 4.914412 3.423441 0.853641
0.087758 0.095974 0.085352 0.081318 [error]
Peak 0.075860 0.104922 0.086222 0.030674
0.008910 0.009947 0.009027 0.007979 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 109.580 -37.532 72.048
T90 80.296 -29.268 51.028
T50 30.896 -8.860 22.036
Peak 1.000 18.332 19.332
====== 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 -1.572 -0.051 0.051 - - - 7.60e-03 -1.99e-04 1.99e-04 67.430 57
CPL -1.324 -0.203 0.213 142.290 -42.473 343.556 9.98e-03 -1.95e-03 2.56e-03 63.040 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 -1.383 -0.174 0.173 - - - 1.91e-02 -1.96e-03 1.95e-03 50.580 57
CPL -0.968 -0.541 0.780 121.704 N/A N/A 3.12e-02 N/A N/A 49.480 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 1.14e-06 2.00e-06 2.69e-06 7.44e-06 7.82e-06 1.33e-05 erg/cm2
90%_error_low -5.80e-08 -5.87e-08 -9.11e-08 -5.60e-07 -2.17e-07 -6.14e-07 erg/cm2
90%_error_hi 5.92e-08 5.86e-08 9.09e-08 5.92e-07 2.18e-07 6.39e-07 erg/cm2
Peak flux PL 7.01e-01 7.56e-01 5.80e-01 7.28e-01 2.31e+00 2.77e+00 ph/cm2/s
90%_error_low -1.19e-01 -8.15e-02 -7.47e-02 -1.75e-01 -2.33e-01 -2.90e-01 ph/cm2/s
90%_error_hi 1.24e-01 8.08e-02 7.41e-02 2.08e-01 2.33e-01 2.94e-01 ph/cm2/s
Fluence CPL 1.08e-06 2.03e-06 2.73e-06 5.22e-06 7.66e-06 1.11e-05 erg/cm2
90%_error_low -7.42e-08 -6.49e-08 -9.75e-08 -1.25e-06 -2.55e-07 -1.27e-06 erg/cm2
90%_error_hi 7.55e-08 6.54e-08 9.83e-08 1.73e-06 2.54e-07 1.74e-06 erg/cm2
Peak flux CPL 6.56e-01 7.89e-01 5.98e-01 4.40e-01 2.27e+00 2.48e+00 ph/cm2/s
90%_error_low -1.40e-01 -9.70e-02 -8.11e-02 -2.38e-01 -2.42e-01 -3.52e-01 ph/cm2/s
90%_error_hi 1.43e-01 1.01e-01 8.31e-02 3.52e-01 2.42e-01 4.56e-01 ph/cm2/s
======================================================================
Special notes of this burst