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: Tue Apr 25 16:32:50 EDT 2017
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger744773
======================================================================
Trigger: 00744773 Segment: 000
BAT Trigger Time: 512605810.176 [s; MET]
Trigger Stop: 512605814.272 [s; MET]
UTC: 2017-03-30T22:29:51.341320 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 283.326251844694 Dec: -13.4370573410381 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.35
Image Trigger?: NO
Rate S/N Ratio: 18.6547581061776 [ if not an image trigger ]
Image S/N Ratio: 9.35
Analysis Position: [ source = BAT ]
RA: 283.326251844694 Dec: -13.4370573410381 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 283.323263473062 Dec: -13.4483178419652 [deg; J2000]
{ 18h 53m 17.6s , -13d 26' 53.9" }
+/- 1.45034862873674 [arcmin] (estimated 90% radius based on SNR)
+/- 0.622082567720576 [arcmin] (formal 1-sigma fit error)
SNR: 17.8831290455553
Angular difference between the analysis and refined position is 0.697773 arcmin
Partial Coding Fraction: 0.4648438 [ including projection effects ]
Duration
T90: 144.46799993515 +/- 2.18785005650547
Measured from: -141.167999982834
to: 3.29999995231628 [s; relative to TRIGTIME]
T50: 109.767999947071 +/- 2.90593321125023
Measured from: -135.315999984741
to: -25.5480000376701 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -134.708000004292
to: -133.708000004292 [s; relative to TRIGTIME]
Total Fluence
Measured from: -143.864000022411
to: 7.97200000286102 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.000650 2.867526 2.591856 0.852053
0.112916 0.114838 0.098997 0.083849 [error]
Peak 0.104025 0.183294 0.224516 0.073554
0.010609 0.011464 0.011670 0.008684 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 151.836 -143.864 7.972
T90 144.468 -141.168 3.300
T50 109.768 -135.316 -25.548
Peak 1.000 -134.708 -133.708
====== 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 -1.333 -0.077 0.078 - - - 3.70e-03 -1.53e-04 1.53e-04 37.360 57
CPL -1.291 -0.114 0.237 925.309 -925.309 -925.309 3.87e-03 -3.10e-04 -2.59e-06 37.510 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 -1.027 -0.103 0.104 - - - 3.96e-02 -2.41e-03 2.41e-03 58.200 57
CPL -0.559 -0.408 0.454 183.251 -61.812 683.907 6.30e-02 -2.06e-02 3.38e-02 54.330 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 6.13e-07 1.25e-06 1.98e-06 6.99e-06 5.51e-06 1.08e-05 erg/cm2
90%_error_low -5.16e-08 -6.20e-08 -9.76e-08 -7.67e-07 -2.43e-07 -8.21e-07 erg/cm2
90%_error_hi 5.32e-08 6.16e-08 9.73e-08 8.33e-07 2.44e-07 8.74e-07 erg/cm2
Peak flux PL 1.04e+00 1.39e+00 1.36e+00 2.40e+00 4.57e+00 6.18e+00 ph/cm2/s
90%_error_low -1.26e-01 -1.06e-01 -8.83e-02 -3.18e-01 -2.85e-01 -3.98e-01 ph/cm2/s
90%_error_hi 1.32e-01 1.05e-01 8.78e-02 3.47e-01 2.85e-01 4.04e-01 ph/cm2/s
Fluence CPL 6.16e-07 1.25e-06 1.98e-06 7.16e-06 5.51e-06 1.09e-05 erg/cm2
90%_error_low N/A -6.21e-08 -1.01e-07 -2.33e-06 -2.73e-07 -2.46e-06 erg/cm2
90%_error_hi N/A 6.57e-08 1.21e-07 2.64e-07 2.55e-07 4.08e-07 erg/cm2
Peak flux CPL 9.09e-01 1.41e+00 1.44e+00 1.58e+00 4.48e+00 5.35e+00 ph/cm2/s
90%_error_low -1.62e-01 -1.13e-01 -1.13e-01 -4.61e-01 -2.94e-01 -5.60e-01 ph/cm2/s
90%_error_hi 1.69e-01 1.14e-01 1.15e-01 7.05e-01 2.94e-01 7.51e-01 ph/cm2/s
======================================================================
Special notes of this burst