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 23:13:52 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger539866
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Trigger: 00539866 Segment: 000
BAT Trigger Time: 375771947.136 [s; MET]
Trigger Stop: 375771948.16 [s; MET]
UTC: 2012-11-28T05:05:37.212960 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 300.582775438788 Dec: 54.3214660612968 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.3
Image Trigger?: NO
Rate S/N Ratio: 9.79795897113271 [ if not an image trigger ]
Image S/N Ratio: 7.3
Analysis Position: [ source = BAT ]
RA: 300.582775438788 Dec: 54.3214660612968 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 300.588451186717 Dec: 54.2997324101534 [deg; J2000]
{ 20h 02m 21.2s , +54d 17' 59.0" }
+/- 0.666858407985102 [arcmin] (estimated 90% radius based on SNR)
+/- 0.17375182840517 [arcmin] (formal 1-sigma fit error)
SNR: 54.2623885353922
Angular difference between the analysis and refined position is 1.319066 arcmin
Partial Coding Fraction: 0.8828125 [ including projection effects ]
Duration
T90: 23.4279999732971 +/- 1.64951387437372
Measured from: 13.0920000076294
to: 36.5199999809265 [s; relative to TRIGTIME]
T50: 7.39199995994568 +/- 0.447571198196601
Measured from: 17.5160000324249
to: 24.9079999923706 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 21.6840000152588
to: 22.6840000152588 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.00399994850158691
to: 41.688000023365 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 3.401324 4.226054 2.523560 0.402360
0.049637 0.052852 0.046621 0.042123 [error]
Peak 0.339884 0.583450 0.550563 0.101145
0.011306 0.013838 0.013615 0.008793 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 41.692 -0.004 41.688
T90 23.428 13.092 36.520
T50 7.392 17.516 24.908
Peak 1.000 21.684 22.684
====== 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: CPL)
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 -1.860 -0.040 0.040 - - - 1.59e-02 -3.28e-04 3.28e-04 62.400 57
CPL -1.318 -0.179 0.186 64.923 -5.394 8.462 2.88e-02 -5.05e-03 6.42e-03 33.850 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: CPL)
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 -1.287 -0.048 0.048 - - - 1.09e-01 -3.06e-03 3.06e-03 81.040 57
CPL -0.495 -0.219 0.230 107.708 -12.373 20.023 2.47e-01 -4.89e-02 6.41e-02 38.690 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 1.19e-06 1.76e-06 1.94e-06 4.01e-06 6.10e-06 8.89e-06 erg/cm2
90%_error_low -4.70e-08 -3.98e-08 -5.22e-08 -2.39e-07 -1.26e-07 -2.71e-07 erg/cm2
90%_error_hi 4.78e-08 3.97e-08 5.22e-08 2.49e-07 1.26e-07 2.78e-07 erg/cm2
Peak flux PL 9.96e-04 1.23e-02 8.27e-02 1.26e+01 3.55e-01 1.26e+01 ph/cm2/s
90%_error_low N/A N/A N/A N/A N/A N/A ph/cm2/s
90%_error_hi N/A N/A N/A N/A N/A N/A ph/cm2/s
Fluence CPL 1.05e-06 1.81e-06 1.98e-06 2.04e-06 5.83e-06 6.89e-06 erg/cm2
90%_error_low -6.13e-08 -4.41e-08 -5.67e-08 -3.66e-07 -1.52e-07 -4.04e-07 erg/cm2
90%_error_hi 6.25e-08 4.43e-08 5.69e-08 4.65e-07 1.52e-07 4.94e-07 erg/cm2
Peak flux CPL 2.97e+00 4.34e+00 3.74e+00 2.44e+00 1.25e+01 1.35e+01 ph/cm2/s
90%_error_low -2.49e-01 -1.55e-01 -1.40e-01 -3.67e-01 -4.00e-01 -5.60e-01 ph/cm2/s
90%_error_hi 2.55e-01 1.55e-01 1.42e-01 4.42e-01 4.02e-01 6.02e-01 ph/cm2/s
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