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: Thu Sep 11 12:49:26 EDT 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger335647
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Trigger: 00335647 Segment: 000
BAT Trigger Time: 249428053.568 [s; MET]
Trigger Stop: 249428054.592 [s; MET]
UTC: 2008-11-26T21:34:10.280820 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 323.541872169791 Dec: 48.7093541229447 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 14.45
Image Trigger?: NO
Rate S/N Ratio: 44.2831796509691 [ if not an image trigger ]
Image S/N Ratio: 14.45
Analysis Position: [ source = BAT ]
RA: 323.541872169791 Dec: 48.7093541229447 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 323.522116127488 Dec: 48.7139383556857 [deg; J2000]
{ 21h 34m 05.3s , +48d 42' 50.2" }
+/- 0.826704679421499 [arcmin] (estimated 90% radius based on SNR)
+/- 0.301151601178795 [arcmin] (formal 1-sigma fit error)
SNR: 39.9198814605241
Angular difference between the analysis and refined position is 0.829114 arcmin
Partial Coding Fraction: 0.6796875 [ including projection effects ]
Duration
T90: 57.6480000019073 +/- 5.84667323042645
Measured from: -17.783999979496
to: 39.8640000224113 [s; relative to TRIGTIME]
T50: 31.4399999976158 +/- 0.452866415824261
Measured from: -0.183999985456467
to: 31.2560000121593 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.752000004053116
to: 1.75200000405312 [s; relative to TRIGTIME]
Total Fluence
Measured from: -21.527999997139
to: 56.9120000004768 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.101600 1.796884 1.700388 0.527732
0.052394 0.055005 0.049074 0.041008 [error]
Peak 0.088494 0.156951 0.174945 0.064264
0.007555 0.008779 0.008971 0.006745 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 78.440 -21.528 56.912
T90 57.648 -17.784 39.864
T50 31.440 -0.184 31.256
Peak 1.000 0.752 1.752
====== 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 -1.206 -0.062 0.063 - - - 4.35e-03 -1.45e-04 1.45e-04 46.690 57
CPL -1.060 -0.187 0.252 366.222 -366.222 -366.222 5.05e-03 -7.93e-04 1.44e-03 45.620 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 -0.988 -0.099 0.100 - - - 3.22e-02 -1.81e-03 1.81e-03 47.070 57
CPL -0.799 -0.259 0.407 366.374 -366.374 -366.374 3.90e-02 -8.22e-03 1.94e-02 46.350 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 3.31e-07 7.28e-07 1.26e-06 5.08e-06 3.45e-06 7.40e-06 erg/cm2
90%_error_low -2.29e-08 -2.96e-08 -4.88e-08 -4.48e-07 -1.24e-07 -4.73e-07 erg/cm2
90%_error_hi 2.35e-08 2.95e-08 4.86e-08 4.79e-07 1.24e-07 4.98e-07 erg/cm2
Peak flux PL 8.12e-01 1.11e+00 1.12e+00 2.05e+00 3.70e+00 5.09e+00 ph/cm2/s
90%_error_low -9.19e-02 -7.74e-02 -6.98e-02 -2.66e-01 -2.11e-01 -3.21e-01 ph/cm2/s
90%_error_hi 9.57e-02 7.68e-02 6.94e-02 2.91e-01 2.11e-01 3.28e-01 ph/cm2/s
Fluence CPL 3.19e-07 7.34e-07 1.28e-06 4.17e-06 3.42e-06 6.50e-06 erg/cm2
90%_error_low -2.96e-08 -3.14e-08 -5.60e-08 -1.13e-06 -1.34e-07 -1.13e-06 erg/cm2
90%_error_hi 3.01e-08 3.16e-08 5.68e-08 1.22e-06 1.33e-07 1.06e-06 erg/cm2
Peak flux CPL 7.73e-01 1.12e+00 1.15e+00 1.68e+00 3.67e+00 4.72e+00 ph/cm2/s
90%_error_low -1.18e-01 -8.15e-02 -8.57e-02 -5.34e-01 -2.18e-01 -5.80e-01 ph/cm2/s
90%_error_hi 1.11e-01 8.24e-02 8.76e-02 4.50e-01 2.17e-01 5.33e-01 ph/cm2/s
======================================================================