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: Sun Jan 19 22:56:04 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger323984
======================================================================
Trigger: 00323984 Segment: 000
BAT Trigger Time: 242400799.424 [s; MET]
Trigger Stop: 242400800.448 [s; MET]
UTC: 2008-09-06T13:33:16.347220 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 227.890126999499 Dec: -80.4861395765144 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.72
Image Trigger?: NO
Rate S/N Ratio: 10.6301458127346 [ if not an image trigger ]
Image S/N Ratio: 6.72
Analysis Position: [ source = BAT ]
RA: 227.890126999499 Dec: -80.4861395765144 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 228.057031570565 Dec: -80.537933222545 [deg; J2000]
{ 15h 12m 13.7s , -80d 32' 16.6" }
+/- 1.62491979375274 [arcmin] (estimated 90% radius based on SNR)
+/- 0.678895355668262 [arcmin] (formal 1-sigma fit error)
SNR: 15.203021510086
Angular difference between the analysis and refined position is 3.518845 arcmin
Partial Coding Fraction: 0.59375 [ including projection effects ]
Duration
T90: 148.212000012398 +/- 19.610295759031
Measured from: -67.7319999933243
to: 80.4800000190735 [s; relative to TRIGTIME]
T50: 40.66400000453 +/- 5.79279036844568
Measured from: 2.69200000166893
to: 43.3560000061989 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 8.24000000953674
to: 9.24000000953674 [s; relative to TRIGTIME]
Total Fluence
Measured from: -104.995999991894
to: 109.555999994278 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.635900 2.296052 1.603514 0.307856
0.085671 0.087392 0.077216 0.069248 [error]
Peak 0.032740 0.050433 0.041392 0.006256
0.006790 0.006956 0.006267 0.005383 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 214.552 -104.996 109.556
T90 148.212 -67.732 80.480
T50 40.664 2.692 43.356
Peak 1.000 8.240 9.240
====== 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 -1.517 -0.085 0.084 - - - 1.80e-03 -8.30e-05 8.27e-05 43.810 57
CPL -1.391 -0.169 0.325 243.417 -243.417 -243.417 2.08e-03 -3.50e-04 9.14e-04 43.320 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 -1.399 -0.268 0.267 - - - 8.40e-03 -1.35e-03 1.35e-03 37.570 57
CPL -0.398 -1.100 1.558 80.126 -22.165 -80.126 2.67e-02 -2.67e-02 1.25e-01 35.440 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 5.01e-07 9.10e-07 1.27e-06 3.72e-06 3.65e-06 6.40e-06 erg/cm2
90%_error_low -4.08e-08 -4.42e-08 -7.72e-08 -4.76e-07 -1.84e-07 -5.33e-07 erg/cm2
90%_error_hi 4.19e-08 4.40e-08 7.70e-08 5.23e-07 1.85e-07 5.72e-07 erg/cm2
Peak flux PL 3.14e-01 3.35e-01 2.54e-01 3.14e-01 1.02e+00 1.22e+00 ph/cm2/s
90%_error_low -8.23e-02 -5.78e-02 -5.02e-02 -1.10e-01 -1.64e-01 -1.98e-01 ph/cm2/s
90%_error_hi 8.88e-02 5.71e-02 4.97e-02 1.42e-01 1.65e-01 2.01e-01 ph/cm2/s
Fluence CPL 4.89e-07 9.21e-07 1.28e-06 3.04e-06 3.61e-06 5.73e-06 erg/cm2
90%_error_low -4.87e-08 -5.04e-08 -8.03e-08 -1.15e-06 -2.10e-07 -1.16e-06 erg/cm2
90%_error_hi 4.58e-08 5.15e-08 8.12e-08 1.23e-06 2.08e-07 8.68e-07 erg/cm2
Peak flux CPL 2.61e-01 3.66e-01 2.73e-01 1.19e-01 9.81e-01 1.02e+00 ph/cm2/s
90%_error_low -1.02e-01 -6.91e-02 -5.80e-02 -1.19e-01 -1.73e-01 -1.98e-01 ph/cm2/s
90%_error_hi 1.07e-01 7.26e-02 6.00e-02 2.40e-01 1.72e-01 2.91e-01 ph/cm2/s
======================================================================
Special notes of this burst