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 Jan 12 01:56:59 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger557771
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Trigger: 00557771 Segment: 000
BAT Trigger Time: 392426072 [s; MET]
Trigger Stop: 392426136 [s; MET]
UTC: 2013-06-08T23:14:21.348120 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 24.5798859527311 Dec: 41.4938034558663 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.45
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 9.45
Analysis Position: [ source = BAT ]
RA: 24.5798859527311 Dec: 41.4938034558663 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 24.59737320483 Dec: 41.4913200292832 [deg; J2000]
{ 01h 38m 23.4s , +41d 29' 28.8" }
+/- 2.54258014483757 [arcmin] (estimated 90% radius based on SNR)
+/- 1.55481604375909 [arcmin] (formal 1-sigma fit error)
SNR: 8.01963481432925
Angular difference between the analysis and refined position is 0.799921 arcmin
Partial Coding Fraction: 0.4570312 [ including projection effects ]
Duration
T90: 151.851999938488 +/- 10.611898224209
Measured from: -132.15600001812
to: 19.6959999203682 [s; relative to TRIGTIME]
T50: 79.8439999222755 +/- 59.5630116045272
Measured from: -71.6480000019073
to: 8.19599992036819 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 19.055999994278
to: 20.055999994278 [s; relative to TRIGTIME]
Total Fluence
Measured from: -135.195999979973
to: 21.727999985218 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.966609 0.542989 0.379777 -0.092155
0.106471 0.110087 0.098584 0.092962 [error]
Peak 0.034962 0.018632 0.012795 0.006233
0.009659 0.009744 0.008544 0.008256 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 156.924 -135.196 21.728
T90 151.852 -132.156 19.696
T50 79.844 -71.648 8.196
Peak 1.000 19.056 20.056
====== 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 -2.624 -0.425 0.360 - - - 5.47e-04 -1.68e-04 1.70e-04 54.700 57
CPL -1.934 N/A N/A 3.401 N/A N/A 1.50e-03 N/A N/A 54.960 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 -2.319 -1.108 0.795 - - - 3.40e-03 -2.21e-03 2.17e-03 69.760 57
CPL -1.928 N/A N/A 6.750 N/A N/A 6.00e-03 N/A N/A 69.700 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 3.19e-07 2.98e-07 1.93e-07 1.94e-07 8.90e-07 1.00e-06 erg/cm2
90%_error_low -5.93e-08 -6.16e-08 -7.52e-08 -1.12e-07 -1.84e-07 -2.47e-07 erg/cm2
90%_error_hi 5.97e-08 5.85e-08 8.68e-08 1.91e-07 1.96e-07 3.08e-07 erg/cm2
Peak flux PL 3.09e-01 1.93e-01 7.72e-02 4.18e-02 6.00e-01 6.21e-01 ph/cm2/s
90%_error_low -1.60e-01 -9.27e-02 -5.70e-02 -4.18e-02 -2.55e-01 -2.67e-01 ph/cm2/s
90%_error_hi 1.68e-01 8.67e-02 7.04e-02 1.03e-01 2.56e-01 2.70e-01 ph/cm2/s
Fluence CPL 3.16e-07 3.10e-07 2.03e-07 1.95e-07 8.78e-07 1.01e-06 erg/cm2
90%_error_low -7.70e-08 -1.03e-07 -8.53e-08 -8.67e-08 -1.11e-07 -2.46e-07 erg/cm2
90%_error_hi 8.30e-08 4.51e-08 7.83e-08 9.94e-07 2.25e-07 3.63e-07 erg/cm2
Peak flux CPL 3.05e-01 2.02e-01 7.41e-02 2.17e-02 5.96e-01 6.03e-01 ph/cm2/s
90%_error_low N/A N/A -7.41e-02 -2.17e-02 -2.53e-01 N/A ph/cm2/s
90%_error_hi N/A N/A 7.54e-02 1.00e-01 2.54e-01 N/A ph/cm2/s
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