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: Sun Aug 30 18:14:51 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger650617
======================================================================
Trigger: 00650617 Segment: 000
BAT Trigger Time: 459780685.952 [s; MET]
Trigger Stop: 459780686.976 [s; MET]
UTC: 2015-07-28T12:51:11.036780 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 292.287805747232 Dec: 33.9039039617548 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.74
Image Trigger?: NO
Rate S/N Ratio: 7.93725393319377 [ if not an image trigger ]
Image S/N Ratio: 6.74
Analysis Position: [ source = BAT ]
RA: 292.287805747232 Dec: 33.9039039617548 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 292.271249895788 Dec: 33.9058805610823 [deg; J2000]
{ 19h 29m 05.1s , +33d 54' 21.2" }
+/- 2.59616397126304 [arcmin] (estimated 90% radius based on SNR)
+/- 1.14634336460646 [arcmin] (formal 1-sigma fit error)
SNR: 7.78422451294506
Angular difference between the analysis and refined position is 0.832933 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 0.832000017166138 +/- 0.230755269859374
Measured from: 0.303999960422516
to: 1.13599997758865 [s; relative to TRIGTIME]
T50: 0.448000013828278 +/- 0.181019365655138
Measured from: 0.431999981403351
to: 0.879999995231628 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.219999969005585
to: 1.21999996900558 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.239999949932098
to: 1.19999998807907 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.025261 0.022351 0.015465 0.007699
0.005317 0.005404 0.004486 0.003591 [error]
Peak 0.026412 0.020252 0.017060 0.007577
0.005417 0.005507 0.004585 0.003664 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 0.960 0.240 1.200
T90 0.832 0.304 1.136
T50 0.448 0.432 0.880
Peak 1.000 0.220 1.220
====== 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 -2.018 -0.517 0.445 - - - 3.68e-03 -1.22e-03 1.13e-03 54.460 57
CPL -2.079 -0.516 1.109 37.420 N/A N/A 3.26e-03 N/A N/A 54.310 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 -1.962 -0.520 0.449 - - - 3.68e-03 -1.19e-03 1.09e-03 58.130 57
CPL -1.969 -0.515 0.459 9999.360 N/A N/A 3.67e-03 N/A N/A 58.140 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 7.36e-09 9.87e-09 9.75e-09 1.73e-08 3.26e-08 4.43e-08 erg/cm2
90%_error_low -2.27e-09 -2.35e-09 -4.16e-09 -1.11e-08 -9.43e-09 -1.69e-08 erg/cm2
90%_error_hi 2.33e-09 2.29e-09 4.40e-09 1.98e-08 9.91e-09 2.37e-08 erg/cm2
Peak flux PL 2.37e-01 1.81e-01 9.32e-02 6.88e-02 5.43e-01 5.80e-01 ph/cm2/s
90%_error_low -7.67e-02 -4.16e-02 -3.83e-02 -4.25e-02 -1.23e-01 -1.35e-01 ph/cm2/s
90%_error_hi 7.98e-02 4.14e-02 3.91e-02 7.04e-02 1.23e-01 1.36e-01 ph/cm2/s
Fluence CPL 7.20e-09 9.68e-09 9.99e-09 2.24e-08 3.30e-08 4.85e-08 erg/cm2
90%_error_low -2.61e-09 -2.84e-09 N/A -1.38e-08 N/A -4.74e-08 erg/cm2
90%_error_hi 2.10e-09 2.53e-09 N/A 4.94e-09 N/A 1.16e-08 erg/cm2
Peak flux CPL 2.31e-01 1.76e-01 9.30e-02 8.26e-02 5.32e-01 5.80e-01 ph/cm2/s
90%_error_low -8.61e-02 -6.53e-02 N/A -8.26e-02 -1.95e-01 -2.10e-01 ph/cm2/s
90%_error_hi 8.59e-02 4.39e-02 N/A 1.61e-02 1.34e-01 1.41e-01 ph/cm2/s
======================================================================
Special notes of this burst