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: Mon Jan 13 21:29:56 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger458521
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Trigger: 00458521 Segment: 000
BAT Trigger Time: 333920990.208 [s; MET]
Trigger Stop: 333920994.304 [s; MET]
UTC: 2011-08-01T19:49:42.991200 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 89.2848875077534 Dec: 80.9884210932685 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.83
Image Trigger?: NO
Rate S/N Ratio: 8.83176086632785 [ if not an image trigger ]
Image S/N Ratio: 7.83
Analysis Position: [ source = BAT ]
RA: 89.2848875077534 Dec: 80.9884210932685 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 89.416242005594 Dec: 80.9572340073404 [deg; J2000]
{ 05h 57m 39.9s , +80d 57' 26.0" }
+/- 1.08438811435936 [arcmin] (estimated 90% radius based on SNR)
+/- 0.293137695503621 [arcmin] (formal 1-sigma fit error)
SNR: 27.0928350684791
Angular difference between the analysis and refined position is 2.242909 arcmin
Partial Coding Fraction: 0.78125 [ including projection effects ]
Duration
T90: 385.255999922752 +/- 8.93474856746104
Measured from: -11.6999999880791
to: 373.555999934673 [s; relative to TRIGTIME]
T50: 332.339999914169 +/- 7.41289037205683
Measured from: 8.88800001144409
to: 341.227999925613 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 341.783999979496
to: 342.783999979496 [s; relative to TRIGTIME]
Total Fluence
Measured from: -24.0879999995232
to: 384.987999975681 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.830347 3.041402 1.978421 0.363293
0.122160 0.127517 0.117940 0.114943 [error]
Peak 0.041048 0.051775 0.028862 0.010582
0.006560 0.006817 0.006020 0.005671 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 409.076 -24.088 384.988
T90 385.256 -11.700 373.556
T50 332.340 8.888 341.228
Peak 1.000 341.784 342.784
====== 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: 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 -1.824 -0.101 0.099 - - - 1.21e-03 -6.93e-05 6.87e-05 76.810 57
CPL -1.611 -0.290 0.395 83.452 -29.486 -83.452 1.57e-03 -4.17e-04 9.58e-04 75.820 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 -1.859 -0.301 0.279 - - - 7.15e-03 -1.41e-03 1.36e-03 60.490 57
CPL -1.646 -0.612 1.117 70.483 -67.907 -70.483 9.49e-03 -9.49e-03 3.29e-02 60.330 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 8.59e-07 1.30e-06 1.46e-06 3.14e-06 4.56e-06 6.76e-06 erg/cm2
90%_error_low -6.99e-08 -6.45e-08 -1.17e-07 -5.01e-07 -2.64e-07 -6.09e-07 erg/cm2
90%_error_hi 7.16e-08 6.45e-08 1.18e-07 5.65e-07 2.67e-07 6.60e-07 erg/cm2
Peak flux PL 4.16e-01 3.39e-01 1.87e-01 1.51e-01 1.01e+00 1.09e+00 ph/cm2/s
90%_error_low -8.90e-02 -5.17e-02 -4.76e-02 -6.33e-02 -1.53e-01 -1.72e-01 ph/cm2/s
90%_error_hi 9.22e-02 5.16e-02 4.86e-02 8.64e-02 1.53e-01 1.74e-01 ph/cm2/s
Fluence CPL 8.33e-07 1.32e-06 1.46e-06 2.17e-06 4.45e-06 5.79e-06 erg/cm2
90%_error_low -8.25e-08 -7.83e-08 -1.22e-07 -9.73e-07 -3.19e-07 -1.04e-06 erg/cm2
90%_error_hi 8.35e-08 7.95e-08 1.22e-07 1.47e-06 3.21e-07 1.22e-06 erg/cm2
Peak flux CPL 4.08e-01 3.48e-01 1.87e-01 1.09e-01 1.00e+00 1.05e+00 ph/cm2/s
90%_error_low -9.72e-02 -5.90e-02 -5.09e-02 -1.09e-01 -1.56e-01 -1.89e-01 ph/cm2/s
90%_error_hi 9.76e-02 6.71e-02 5.04e-02 8.86e-02 1.57e-01 2.07e-01 ph/cm2/s
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