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: Wed Jan 22 19:08:23 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger176453
======================================================================
Trigger: 00176453 Segment: 000
BAT Trigger Time: 158423952.704 [s; MET]
Trigger Stop: 158423953.728 [s; MET]
UTC: 2006-01-08T14:39:11.760360 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 146.991545670284 Dec: 31.9164170544607 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.51
Image Trigger?: NO
Rate S/N Ratio: 13.7477270848675 [ if not an image trigger ]
Image S/N Ratio: 8.51
Analysis Position: [ source = BAT ]
RA: 146.991545670284 Dec: 31.9164170544607 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 147.01909205963 Dec: 31.9313639482555 [deg; J2000]
{ 09h 48m 04.6s , +31d 55' 52.9" }
+/- 1.3376802573893 [arcmin] (estimated 90% radius based on SNR)
+/- 0.640649173699714 [arcmin] (formal 1-sigma fit error)
SNR: 20.0731287118385
Angular difference between the analysis and refined position is 1.664971 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 14.2200000286102 +/- 2.14442533480997
Measured from: -2.56000000238419
to: 11.660000026226 [s; relative to TRIGTIME]
T50: 4.9040000140667 +/- 0.840951826128777
Measured from: 0.780000001192093
to: 5.68400001525879 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.604000002145767
to: 1.60400000214577 [s; relative to TRIGTIME]
Total Fluence
Measured from: -4.02399998903275
to: 13.2280000150204 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.292122 0.249592 0.144702 0.028160
0.018911 0.019701 0.016855 0.013845 [error]
Peak 0.026406 0.042154 0.018874 0.011895
0.004786 0.005147 0.004299 0.003347 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 17.252 -4.024 13.228
T90 14.220 -2.560 11.660
T50 4.904 0.780 5.684
Peak 1.000 0.604 1.604
====== 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 -1.997 -0.168 0.161 - - - 2.34e-03 -2.47e-04 2.41e-04 49.820 57
CPL -2.006 -0.104 0.628 30.421 N/A N/A 2.31e-03 N/A N/A 49.820 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 -1.675 -0.265 0.254 - - - 5.69e-03 -9.87e-04 9.66e-04 52.620 57
CPL -0.543 -1.231 1.875 55.286 -14.226 -55.286 2.51e-02 -2.51e-02 2.76e-01 50.530 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 8.23e-08 1.12e-07 1.12e-07 2.03e-07 3.72e-07 5.09e-07 erg/cm2
90%_error_low -9.80e-09 -9.09e-09 -1.63e-08 -5.40e-08 -3.65e-08 -7.23e-08 erg/cm2
90%_error_hi 1.01e-08 9.09e-09 1.66e-08 6.59e-08 3.72e-08 8.15e-08 erg/cm2
Peak flux PL 2.77e-01 2.51e-01 1.57e-01 1.50e-01 7.49e-01 8.36e-01 ph/cm2/s
90%_error_low -6.19e-02 -3.89e-02 -3.46e-02 -5.55e-02 -1.15e-01 -1.32e-01 ph/cm2/s
90%_error_hi 6.46e-02 3.88e-02 3.46e-02 7.20e-02 1.15e-01 1.33e-01 ph/cm2/s
Fluence CPL 8.24e-08 1.12e-07 1.12e-07 2.07e-07 3.72e-07 5.13e-07 erg/cm2
90%_error_low -9.32e-09 -1.91e-08 -1.60e-08 -1.28e-07 -4.32e-08 -1.48e-07 erg/cm2
90%_error_hi 1.05e-08 1.19e-08 1.31e-08 1.81e-07 3.78e-08 9.01e-08 erg/cm2
Peak flux CPL 2.48e-01 2.88e-01 1.58e-01 4.02e-02 7.25e-01 7.34e-01 ph/cm2/s
90%_error_low -7.43e-02 -5.75e-02 -4.54e-02 -4.02e-02 -1.19e-01 -1.26e-01 ph/cm2/s
90%_error_hi 7.40e-02 6.17e-02 4.06e-02 1.31e-01 1.19e-01 1.66e-01 ph/cm2/s
======================================================================
Special notes of this burst