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 02:54:36 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger556870
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Trigger: 00556870 Segment: 000
BAT Trigger Time: 391452094.528 [s; MET]
Trigger Stop: 391452095.04 [s; MET]
UTC: 2013-05-28T16:41:23.919600 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 138.910917852021 Dec: 87.2757530719287 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.71
Image Trigger?: NO
Rate S/N Ratio: 20.8326666559997 [ if not an image trigger ]
Image S/N Ratio: 9.71
Analysis Position: [ source = BAT ]
RA: 138.910917852021 Dec: 87.2757530719287 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 139.417797129814 Dec: 87.2971203932434 [deg; J2000]
{ 09h 17m 40.3s , +87d 17' 49.6" }
+/- 0.697500366893827 [arcmin] (estimated 90% radius based on SNR)
+/- 0.219460981931097 [arcmin] (formal 1-sigma fit error)
SNR: 50.8892818661436
Angular difference between the analysis and refined position is 1.927871 arcmin
Partial Coding Fraction: 1 [ including projection effects ]
Duration
T90: 640 +/- 560
Measured from: -9.52799999713898
to: 630.472000002861 [s; relative to TRIGTIME]
T50: 32 +/- 16
Measured from: 6.47200000286102
to: 38.472000002861 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 13.972000002861
to: 14.972000002861 [s; relative to TRIGTIME]
Total Fluence
Measured from: -9.52799999713898
to: 710.472000002861 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.650105 3.551960 2.595964 0.562222
0.151122 0.155993 0.136908 0.120616 [error]
Peak 0.014660 0.004868 0.011490 -0.003696
0.005964 0.006025 0.005415 0.004635 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 720.000 -9.528 710.472
T90 640.000 -9.528 630.472
T50 32.000 6.472 38.472
Peak 1.000 13.972 14.972
====== 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 -1.552 -0.093 0.093 - - - 8.38e-04 -4.34e-05 4.33e-05 37.410 57
CPL -1.462 -0.174 0.352 295.263 -295.263 -295.263 9.31e-04 -1.33e-04 4.60e-04 37.200 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 -1.896 -2.032 1.266 - - - 1.74e-03 -1.74e-03 1.24e-03 57.270 57
CPL -2.062 -0.026 2.062 26.483 N/A N/A 1.37e-03 N/A N/A 57.200 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 8.09e-07 1.44e-06 1.96e-06 5.54e-06 5.68e-06 9.75e-06 erg/cm2
90%_error_low -7.07e-08 -7.57e-08 -1.36e-07 -7.91e-07 -3.21e-07 -8.99e-07 erg/cm2
90%_error_hi 7.25e-08 7.54e-08 1.36e-07 8.79e-07 3.23e-07 9.71e-07 erg/cm2
Peak flux PL 1.05e-01 8.38e-02 4.50e-02 3.52e-02 2.50e-01 2.69e-01 ph/cm2/s
90%_error_low -8.06e-02 -8.38e-02 -4.11e-02 -3.52e-02 -2.50e-01 -1.55e-01 ph/cm2/s
90%_error_hi 9.07e-02 4.69e-02 4.68e-02 1.42e-01 1.39e-01 1.56e-01 ph/cm2/s
Fluence CPL 7.97e-07 1.45e-06 1.97e-06 4.77e-06 5.63e-06 8.99e-06 erg/cm2
90%_error_low -8.31e-08 -8.51e-08 -1.39e-07 -1.97e-06 -3.66e-07 -2.00e-06 erg/cm2
90%_error_hi 6.53e-08 8.97e-08 1.41e-07 9.61e-07 3.36e-07 1.07e-06 erg/cm2
Peak flux CPL 1.01e-01 6.79e-02 3.50e-02 3.01e-02 2.55e-01 2.75e-01 ph/cm2/s
90%_error_low N/A -6.79e-02 -3.50e-02 -3.01e-02 -2.55e-01 -1.23e-01 ph/cm2/s
90%_error_hi N/A 6.57e-02 2.78e-02 2.91e-02 1.33e-01 1.56e-01 ph/cm2/s
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