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 02:04:13 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger557589
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Trigger: 00557589 Segment: 000
BAT Trigger Time: 392245489.664 [s; MET]
Trigger Stop: 392245490.688 [s; MET]
UTC: 2013-06-06T21:04:39.020180 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 249.403240279661 Dec: 29.7909669508947 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.14
Image Trigger?: NO
Rate S/N Ratio: 15.0996688705415 [ if not an image trigger ]
Image S/N Ratio: 8.14
Analysis Position: [ source = BAT ]
RA: 249.403240279661 Dec: 29.7909669508947 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 249.389817115288 Dec: 29.7972578154866 [deg; J2000]
{ 16h 37m 33.6s , +29d 47' 50.1" }
+/- 2.00537997111854 [arcmin] (estimated 90% radius based on SNR)
+/- 0.725935110610736 [arcmin] (formal 1-sigma fit error)
SNR: 11.2566418125869
Angular difference between the analysis and refined position is 0.794339 arcmin
Partial Coding Fraction: 0.96875 [ including projection effects ]
Duration
T90: 276.65600001812 +/- 19.6308524182913
Measured from: 0.496000051498413
to: 277.152000069618 [s; relative to TRIGTIME]
T50: 60.5440000295639 +/- 12.5902946920985
Measured from: 102.112000048161
to: 162.656000077724 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 160.356000006199
to: 161.356000006199 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.34399998188019
to: 296.912000000477 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.325837 1.733965 1.294984 0.356747
0.100994 0.103716 0.091994 0.084394 [error]
Peak 0.065408 0.116133 0.114870 0.044521
0.006609 0.007966 0.007865 0.006114 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 298.256 -1.344 296.912
T90 276.656 0.496 277.152
T50 60.544 102.112 162.656
Peak 1.000 160.356 161.356
====== 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 -1.519 -0.121 0.120 - - - 9.77e-04 -6.81e-05 6.77e-05 52.240 57
CPL -1.291 -0.291 0.488 150.299 -72.483 -150.299 1.28e-03 -3.61e-04 9.82e-04 51.480 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 -1.012 -0.124 0.126 - - - 2.18e-02 -1.54e-03 1.54e-03 63.130 57
CPL -0.913 -0.158 0.482 625.590 -625.590 -625.590 2.41e-02 -3.61e-03 1.51e-02 62.990 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 3.79e-07 6.88e-07 9.61e-07 2.80e-06 2.76e-06 4.83e-06 erg/cm2
90%_error_low -4.23e-08 -4.75e-08 -8.88e-08 -5.18e-07 -2.11e-07 -5.95e-07 erg/cm2
90%_error_hi 4.35e-08 4.73e-08 8.89e-08 5.95e-07 2.14e-07 6.59e-07 erg/cm2
Peak flux PL 5.62e-01 7.57e-01 7.51e-01 1.34e+00 2.51e+00 3.41e+00 ph/cm2/s
90%_error_low -7.80e-02 -6.52e-02 -6.02e-02 -2.20e-01 -1.79e-01 -2.72e-01 ph/cm2/s
90%_error_hi 8.17e-02 6.45e-02 5.97e-02 2.47e-01 1.79e-01 2.79e-01 ph/cm2/s
Fluence CPL 3.66e-07 7.05e-07 9.70e-07 1.92e-06 2.70e-06 3.96e-06 erg/cm2
90%_error_low -4.94e-08 -5.73e-08 -9.23e-08 -9.55e-07 -2.42e-07 -9.84e-07 erg/cm2
90%_error_hi 4.98e-08 5.88e-08 9.37e-08 1.04e-06 2.42e-07 1.10e-06 erg/cm2
Peak flux CPL 2.81e-01 2.19e-01 1.20e-01 1.16e-01 6.66e-01 7.57e-01 ph/cm2/s
90%_error_low -1.23e-01 -8.77e-02 -3.02e-02 -9.12e-03 -2.53e-01 -2.40e-01 ph/cm2/s
90%_error_hi 4.68e-02 6.93e-02 2.40e-02 9.98e-03 1.93e-01 1.46e-01 ph/cm2/s
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