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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Fri Jul 6 12:19:21 EDT 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger835200
======================================================================
Trigger: 00835200 Segment: 000
BAT Trigger Time: 549620112 [s; MET]
Trigger Stop: 549620176 [s; MET]
UTC: 2018-06-02T08:14:50.959800 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 142.33930428647 Dec: 32.0927735904 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.3
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.3
Analysis Position: [ source = BAT ]
RA: 142.33930428647 Dec: 32.0927735904 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 142.3379578901 Dec: 32.0834759326783 [deg; J2000]
{ 09h 29m 21.1s , +32d 05' 00.5" }
+/- 1.48586983770063 [arcmin] (estimated 90% radius based on SNR)
+/- 0.59414834067352 [arcmin] (formal 1-sigma fit error)
SNR: 17.2755375622003
Angular difference between the analysis and refined position is 0.562042 arcmin
Partial Coding Fraction: 0.7890625 [ including projection effects ]
Duration
T90: 53.203999876976 +/- 10.1974963735852
Measured from: -32.3999999761581
to: 20.8039999008179 [s; relative to TRIGTIME]
T50: 17.6000000238419 +/- 3.31492139140463
Measured from: -22.37600004673
to: -4.77600002288818 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -19.5720000267029
to: -18.5720000267029 [s; relative to TRIGTIME]
Total Fluence
Measured from: -39.3719999790192
to: 30.2480000257492 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.928571 1.221477 0.693962 0.140133
0.058479 0.061097 0.053935 0.047623 [error]
Peak 0.023619 0.048572 0.039095 0.009362
0.007248 0.007989 0.006664 0.005669 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 69.620 -39.372 30.248
T90 53.204 -32.400 20.804
T50 17.600 -22.376 -4.776
Peak 1.000 -19.572 -18.572
====== 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 -1.713 -0.114 0.113 - - - 2.69e-03 -1.82e-04 1.81e-04 45.030 57
CPL -1.299 -0.441 0.496 77.605 -21.334 -77.605 4.49e-03 -1.84e-03 3.75e-03 42.470 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 -1.252 -0.294 0.303 - - - 8.13e-03 -1.43e-03 1.43e-03 49.940 57
CPL -0.855 -1.190 1.477 149.098 -149.098 -149.098 1.28e-02 -5.97e-03 5.50e-02 49.600 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 2.92e-07 4.71e-07 5.75e-07 1.38e-06 1.73e-06 2.72e-06 erg/cm2
90%_error_low -2.84e-08 -2.90e-08 -5.30e-08 -2.49e-07 -1.23e-07 -2.99e-07 erg/cm2
90%_error_hi 2.91e-08 2.90e-08 5.33e-08 2.84e-07 1.24e-07 3.27e-07 erg/cm2
Peak flux PL 2.64e-01 3.08e-01 2.59e-01 3.67e-01 9.62e-01 1.20e+00 ph/cm2/s
90%_error_low -8.22e-02 -6.32e-02 -5.32e-02 -1.35e-01 -1.74e-01 -2.18e-01 ph/cm2/s
90%_error_hi 8.97e-02 6.18e-02 5.24e-02 1.78e-01 1.75e-01 2.22e-01 ph/cm2/s
Fluence CPL 2.76e-07 4.93e-07 5.77e-07 7.00e-07 1.66e-06 2.05e-06 erg/cm2
90%_error_low -3.29e-08 -3.68e-08 -5.69e-08 -3.42e-07 -1.45e-07 -3.75e-07 erg/cm2
90%_error_hi 3.33e-08 3.78e-08 5.66e-08 7.24e-07 1.46e-07 7.40e-07 erg/cm2
Peak flux CPL 2.45e-01 3.20e-01 2.69e-01 2.35e-01 9.50e-01 1.07e+00 ph/cm2/s
90%_error_low -9.72e-02 -7.13e-02 -6.01e-02 -2.35e-01 -1.79e-01 -2.59e-01 ph/cm2/s
90%_error_hi 1.02e-01 7.68e-02 6.30e-02 1.79e-01 1.78e-01 2.79e-01 ph/cm2/s
======================================================================
Special notes of this burst