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: Fri Jan 17 17:43:27 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger426438
======================================================================
Trigger: 00426438 Segment: 000
BAT Trigger Time: 299725433.152 [s; MET]
Trigger Stop: 299725433.28 [s; MET]
UTC: 2010-07-02T01:03:47.206620 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 245.70251985758 Dec: -56.5377013538901 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 14.19
Image Trigger?: NO
Rate S/N Ratio: 37.3764631820615 [ if not an image trigger ]
Image S/N Ratio: 14.19
Analysis Position: [ source = BAT ]
RA: 245.70251985758 Dec: -56.5377013538901 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 245.682042175774 Dec: -56.5487174681959 [deg; J2000]
{ 16h 22m 43.7s , -56d 32' 55.4" }
+/- 1.46282665473369 [arcmin] (estimated 90% radius based on SNR)
+/- 0.575481466726513 [arcmin] (formal 1-sigma fit error)
SNR: 17.6656073234474
Angular difference between the analysis and refined position is 0.946419 arcmin
Partial Coding Fraction: 0.6171875 [ including projection effects ]
Duration
T90: 0.512000024318695 +/- 0.143108374017273
Measured from: -0.304000020027161
to: 0.208000004291534 [s; relative to TRIGTIME]
T50: 0.0640000104904175 +/- 0.0640000104904175
Measured from: 0.015999972820282
to: 0.0799999833106995 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.516000032424927
to: 0.483999967575073 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.304000020027161
to: 0.208000004291534 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.056038 0.092318 0.064665 0.017689
0.007506 0.007474 0.006474 0.004797 [error]
Peak 0.060689 0.103080 0.071667 0.017280
0.009752 0.009247 0.007961 0.006236 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 0.512 -0.304 0.208
T90 0.512 -0.304 0.208
T50 0.064 0.016 0.080
Peak 1.000 -0.516 0.484
====== 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 -1.611 -0.167 0.164 - - - 3.00e-02 -2.95e-03 2.94e-03 57.820 57
CPL -1.057 -0.619 0.756 87.496 -25.439 -87.496 5.64e-02 -2.77e-02 7.39e-02 55.730 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 -1.607 -0.191 0.187 - - - 1.71e-02 -1.88e-03 1.87e-03 50.360 57
CPL -1.077 -0.653 0.867 90.522 -24.606 -90.522 3.10e-02 -1.51e-02 4.88e-02 48.890 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 2.18e-08 3.74e-08 4.90e-08 1.30e-07 1.44e-07 2.38e-07 erg/cm2
90%_error_low -3.46e-09 -3.76e-09 -6.20e-09 -3.18e-08 -1.49e-08 -3.73e-08 erg/cm2
90%_error_hi 3.62e-09 3.74e-09 6.15e-09 3.78e-08 1.50e-08 4.19e-08 erg/cm2
Peak flux PL 7.79e-01 7.36e-01 4.83e-01 4.92e-01 2.20e+00 2.49e+00 ph/cm2/s
90%_error_low -1.43e-01 -8.60e-02 -6.64e-02 -1.26e-01 -2.47e-01 -2.67e-01 ph/cm2/s
90%_error_hi 1.52e-01 8.52e-02 6.57e-02 1.49e-01 2.48e-01 2.67e-01 ph/cm2/s
Fluence CPL 1.97e-08 3.94e-08 5.11e-08 6.36e-08 1.39e-07 1.74e-07 erg/cm2
90%_error_low -4.21e-09 -4.45e-09 -6.87e-09 -3.42e-08 -1.60e-08 -3.79e-08 erg/cm2
90%_error_hi 4.35e-09 4.60e-09 7.05e-09 7.74e-08 1.60e-08 8.03e-08 erg/cm2
Peak flux CPL 6.97e-01 7.66e-01 5.07e-01 2.93e-01 2.14e+00 2.26e+00 ph/cm2/s
90%_error_low -1.78e-01 -9.66e-02 -7.54e-02 -1.50e-01 -2.61e-01 -3.19e-01 ph/cm2/s
90%_error_hi 1.85e-01 9.93e-02 7.78e-02 2.51e-01 2.61e-01 3.94e-01 ph/cm2/s
======================================================================
Special notes of this burst