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: Thu Sep 28 17:34:36 EDT 2017
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger772006
======================================================================
Trigger: 00772006 Segment: 000
BAT Trigger Time: 526872876.608 [s; MET]
Trigger Stop: 526872880.704 [s; MET]
UTC: 2017-09-12T01:34:16.935740 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 167.372184088217 Dec: -54.3596433863869 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.13
Image Trigger?: NO
Rate S/N Ratio: 13.7477270848675 [ if not an image trigger ]
Image S/N Ratio: 10.13
Analysis Position: [ source = BAT ]
RA: 167.372184088217 Dec: -54.3596433863869 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 167.38540773673 Dec: -54.3436488012755 [deg; J2000]
{ 11h 09m 32.5s , -54d 20' 37.1" }
+/- 2.02751875572444 [arcmin] (estimated 90% radius based on SNR)
+/- 1.03514925446332 [arcmin] (formal 1-sigma fit error)
SNR: 11.0814635506224
Angular difference between the analysis and refined position is 1.065270 arcmin
Partial Coding Fraction: 0.3476562 [ including projection effects ]
Duration
T90: 21.1840000152588 +/- 5.43548050044814
Measured from: -0.120000004768372
to: 21.0640000104904 [s; relative to TRIGTIME]
T50: 8.89600002765656 +/- 3.83533050225048
Measured from: 2.12000000476837
to: 11.0160000324249 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 2.48400002717972
to: 3.48400002717972 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.20800000429153
to: 26.3120000362396 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.698288 0.691404 0.416102 0.086586
0.078741 0.072286 0.058080 0.050948 [error]
Peak 0.096947 0.076263 0.037659 0.014350
0.015877 0.014470 0.011682 0.010129 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 27.520 -1.208 26.312
T90 21.184 -0.120 21.064
T50 8.896 2.120 11.016
Peak 1.000 2.484 3.484
====== 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 -2.010 -0.218 0.208 - - - 4.35e-03 -5.72e-04 5.58e-04 40.320 57
CPL -1.986 -0.107 0.875 26.994 -24.757 -26.994 4.49e-03 N/A N/A 40.320 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 -2.253 -0.449 0.393 - - - 1.19e-02 -3.35e-03 3.14e-03 45.500 57
CPL -2.489 -0.263 1.546 189.912 N/A N/A 8.95e-03 N/A N/A 45.350 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 2.47e-07 3.34e-07 3.32e-07 5.94e-07 1.11e-06 1.51e-06 erg/cm2
90%_error_low -4.20e-08 -3.70e-08 -5.91e-08 -1.91e-07 -1.36e-07 -2.57e-07 erg/cm2
90%_error_hi 4.36e-08 3.69e-08 5.94e-08 2.44e-07 1.38e-07 2.93e-07 erg/cm2
Peak flux PL 1.01e+00 6.57e-01 2.75e-01 1.58e-01 2.03e+00 2.10e+00 ph/cm2/s
90%_error_low -2.86e-01 -1.31e-01 -9.86e-02 -8.71e-02 -4.06e-01 -4.16e-01 ph/cm2/s
90%_error_hi 3.03e-01 1.31e-01 1.02e-01 1.35e-01 4.08e-01 4.16e-01 ph/cm2/s
Fluence CPL 2.47e-07 3.35e-07 3.32e-07 5.68e-07 1.10e-06 1.48e-06 erg/cm2
90%_error_low N/A N/A N/A -4.15e-07 N/A -4.57e-07 erg/cm2
90%_error_hi N/A N/A N/A 5.89e-07 N/A 3.39e-07 erg/cm2
Peak flux CPL 9.76e-01 6.73e-01 2.79e-01 N/A 1.99e+00 2.05e+00 ph/cm2/s
90%_error_low -2.54e-01 -1.33e-01 N/A -8.71e-02 -3.96e-01 N/A ph/cm2/s
90%_error_hi 2.67e-01 1.34e-01 N/A 1.35e-01 3.98e-01 N/A ph/cm2/s
======================================================================
Special notes of this burst