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: Thu Sep 11 12:03:07 EDT 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger382941
======================================================================
Trigger: 00382941 Segment: 000
BAT Trigger Time: 285455185.024 [s; MET]
Trigger Stop: 285455185.088 [s; MET]
UTC: 2010-01-17T21:06:19.576420 [includes UTCF correction]
Where From?: (*SHORT BURST*) TDRSS scaled map message
BAT
RA: 11.2598564623618 Dec: -1.59437398006469 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.19
Image Trigger?: NO
Rate S/N Ratio: 21.0237960416286 [ if not an image trigger ]
Image S/N Ratio: 7.19
Analysis Position: [ source = BAT ]
RA: 11.2598564623618 Dec: -1.59437398006469 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 11.2802214518467 Dec: -1.58655575807628 [deg; J2000]
{ 00h 45m 07.3s , -01d 35' 11.6" }
+/- 1.74107016322319 [arcmin] (estimated 90% radius based on SNR)
+/- 0.900231494926571 [arcmin] (formal 1-sigma fit error)
SNR: 13.7751118141039
Angular difference between the analysis and refined position is 1.308410 arcmin
Partial Coding Fraction: 0.6640625 [ including projection effects ]
Duration
T90: 0.291999936103821 +/- 0.0322490150242218
Measured from: 0.00400000810623169
to: 0.295999944210052 [s; relative to TRIGTIME]
T50: 0.167999923229218 +/- 0.0483321733182326
Measured from: 0.0480000376701355
to: 0.215999960899353 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.343999981880188
to: 0.656000018119812 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.00800001621246338
to: 0.315999984741211 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.021940 0.036358 0.054029 0.012915
0.004672 0.005467 0.005341 0.004404 [error]
Peak 0.019190 0.042952 0.045621 0.013652
0.007320 0.007885 0.007492 0.006373 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 0.324 -0.008 0.316
T90 0.292 0.004 0.296
T50 0.168 0.048 0.216
Peak 1.000 -0.344 0.656
====== 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 -0.879 -0.218 0.229 - - - 2.55e-02 -3.40e-03 3.36e-03 62.290 57
CPL -0.551 -0.434 0.978 265.761 -265.761 -265.761 3.52e-02 -1.25e-02 5.05e-02 61.830 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 -0.916 -0.329 0.357 - - - 8.35e-03 -1.62e-03 1.58e-03 56.390 57
CPL -0.913 -2.924 1.198 9999.360 N/A N/A 8.40e-03 N/A N/A 56.400 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 5.92e-09 1.59e-08 3.47e-08 1.97e-07 9.35e-08 2.54e-07 erg/cm2
90%_error_low -1.54e-09 -2.65e-09 -4.74e-09 -5.52e-08 -1.27e-08 -5.79e-08 erg/cm2
90%_error_hi 1.68e-09 2.59e-09 4.69e-09 6.94e-08 1.27e-08 7.05e-08 erg/cm2
Peak flux PL 1.97e-01 2.81e-01 2.98e-01 5.85e-01 9.59e-01 1.36e+00 ph/cm2/s
90%_error_low -7.63e-02 -7.25e-02 -5.67e-02 -2.15e-01 -1.84e-01 -2.65e-01 ph/cm2/s
90%_error_hi 8.88e-02 7.02e-02 5.60e-02 2.91e-01 1.86e-01 2.82e-01 ph/cm2/s
Fluence CPL 5.42e-09 1.63e-08 3.61e-08 1.32e-07 9.26e-08 1.90e-07 erg/cm2
90%_error_low -1.95e-09 -2.81e-09 -5.73e-09 -7.87e-08 -1.31e-08 -7.87e-08 erg/cm2
90%_error_hi 1.77e-09 2.87e-09 6.06e-09 1.39e-07 1.30e-08 8.31e-08 erg/cm2
Peak flux CPL 2.03e-01 2.80e-01 2.93e-01 5.81e-01 9.64e-01 1.43e+00 ph/cm2/s
90%_error_low N/A N/A -5.81e-02 N/A -2.11e-01 -3.24e-01 ph/cm2/s
90%_error_hi N/A N/A 4.41e-02 N/A 1.99e-01 2.85e-01 ph/cm2/s
======================================================================
Special notes of this burst