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: Mon Jan 13 19:15:51 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger506074
======================================================================
Trigger: 00506074 Segment: 000
BAT Trigger Time: 340996392 [s; MET]
Trigger Stop: 340996456 [s; MET]
UTC: 2011-10-22T17:13:04.505940 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 108.951202257144 Dec: 49.6663689387038 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.16
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 9.16
Analysis Position: [ source = BAT ]
RA: 108.951202257144 Dec: 49.6663689387038 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 108.923306838468 Dec: 49.6597161970468 [deg; J2000]
{ 07h 15m 41.6s , +49d 39' 35.0" }
+/- 2.1076893429423 [arcmin] (estimated 90% radius based on SNR)
+/- 1.1283587391969 [arcmin] (formal 1-sigma fit error)
SNR: 10.4842537444895
Angular difference between the analysis and refined position is 1.154567 arcmin
Partial Coding Fraction: 0.8203125 [ including projection effects ]
Duration
T90: 83.0279999375343 +/- 12.9672758719238
Measured from: -29.444000005722
to: 53.5839999318123 [s; relative to TRIGTIME]
T50: 43.9519999623299 +/- 16.1059065750694
Measured from: -20.0120000243187
to: 23.9399999380112 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 49.5360000133514
to: 50.5360000133514 [s; relative to TRIGTIME]
Total Fluence
Measured from: -47.8320000171661
to: 60.1800000071526 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.468762 0.604276 0.346119 0.065331
0.059516 0.061323 0.054053 0.046981 [error]
Peak 0.016952 0.012083 0.013052 0.008370
0.005859 0.005836 0.005457 0.004583 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 108.012 -47.832 60.180
T90 83.028 -29.444 53.584
T50 43.952 -20.012 23.940
Peak 1.000 49.536 50.536
====== 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 -1.649 -0.211 0.207 - - - 9.04e-04 -1.17e-04 1.15e-04 61.570 57
CPL -1.520 -0.334 0.877 165.638 -165.638 -165.638 1.07e-03 -2.77e-04 2.26e-03 61.490 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 -1.102 -0.868 1.138 - - - 3.28e-03 -1.44e-03 1.15e-03 58.110 57
CPL -1.127 1.127 0.569 9999.360 N/A N/A 3.30e-03 N/A N/A 58.130 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 1.42e-07 2.38e-07 3.03e-07 7.77e-07 8.98e-07 1.46e-06 erg/cm2
90%_error_low -2.59e-08 -2.84e-08 -5.21e-08 -2.44e-07 -1.23e-07 -2.97e-07 erg/cm2
90%_error_hi 2.67e-08 2.83e-08 5.23e-08 3.11e-07 1.25e-07 3.51e-07 erg/cm2
Peak flux PL 9.18e-02 1.17e-01 1.10e-01 1.80e-01 3.80e-01 4.99e-01 ph/cm2/s
90%_error_low -9.18e-02 -7.10e-02 -5.01e-02 -1.34e-01 -3.80e-01 -1.83e-01 ph/cm2/s
90%_error_hi 9.65e-02 5.48e-02 4.30e-02 3.63e-01 1.44e-01 2.50e-01 ph/cm2/s
Fluence CPL 1.40e-07 2.42e-07 3.04e-07 6.08e-07 8.85e-07 1.29e-06 erg/cm2
90%_error_low -2.78e-08 -3.19e-08 -5.44e-08 -4.60e-07 -1.48e-07 -4.89e-07 erg/cm2
90%_error_hi 2.77e-08 3.85e-08 5.37e-08 2.31e-07 1.35e-07 2.75e-07 erg/cm2
Peak flux CPL 7.84e-02 5.16e-02 2.31e-02 1.72e-02 1.61e-01 1.71e-01 ph/cm2/s
90%_error_low -7.84e-02 -5.16e-02 -2.31e-02 -1.72e-02 N/A N/A ph/cm2/s
90%_error_hi 1.04e-01 7.23e-02 2.75e-02 2.89e-02 N/A N/A ph/cm2/s
======================================================================
Special notes of this burst