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: Mon Jan 13 23:53:46 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger448229
======================================================================
Trigger: 00448229 Segment: 000
BAT Trigger Time: 320999887.936 [s; MET]
Trigger Stop: 320999892.032 [s; MET]
UTC: 2011-03-05T06:38:01.212340 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 260.877330338745 Dec: -15.7900383779732 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.2
Image Trigger?: NO
Rate S/N Ratio: 13.9283882771841 [ if not an image trigger ]
Image S/N Ratio: 7.2
Analysis Position: [ source = BAT ]
RA: 260.877330338745 Dec: -15.7900383779732 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 260.875140191826 Dec: -15.799752811987 [deg; J2000]
{ 17h 23m 30.0s , -15d 47' 59.1" }
+/- 1.84881494100128 [arcmin] (estimated 90% radius based on SNR)
+/- 0.943587676916032 [arcmin] (formal 1-sigma fit error)
SNR: 12.642764083763
Angular difference between the analysis and refined position is 0.596424 arcmin
Partial Coding Fraction: 0.2226562 [ including projection effects ]
Duration
T90: 12 +/- 2.23606797749979
Measured from: -0.935999989509583
to: 11.0640000104904 [s; relative to TRIGTIME]
T50: 6 +/- 1
Measured from: 1.06400001049042
to: 7.06400001049042 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 6.06400001049042
to: 7.06400001049042 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.935999989509583
to: 12.0640000104904 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.365885 0.445813 0.384308 0.013428
0.046604 0.046825 0.041321 0.037057 [error]
Peak 0.052180 0.047498 0.050391 0.004253
0.012654 0.013238 0.011904 0.010519 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 13.000 -0.936 12.064
T90 12.000 -0.936 11.064
T50 6.000 1.064 7.064
Peak 1.000 6.064 7.064
====== 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 -1.589 -0.195 0.192 - - - 6.55e-03 -7.49e-04 7.42e-04 64.760 57
CPL -1.301 -0.376 0.761 120.284 -120.284 -120.284 9.19e-03 -3.30e-03 1.26e-02 64.220 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 -1.704 -0.482 0.443 - - - 9.38e-03 -2.78e-03 2.68e-03 56.560 57
CPL -1.040 -1.543 2.170 69.482 N/A N/A 2.10e-02 N/A N/A 56.080 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 1.18e-07 2.06e-07 2.74e-07 7.43e-07 7.98e-07 1.34e-06 erg/cm2
90%_error_low -2.11e-08 -2.32e-08 -4.11e-08 -2.12e-07 -9.76e-08 -2.50e-07 erg/cm2
90%_error_hi 2.21e-08 2.31e-08 4.09e-08 2.62e-07 9.87e-08 2.90e-07 erg/cm2
Peak flux PL 4.69e-01 4.19e-01 2.57e-01 2.40e-01 1.25e+00 1.39e+00 ph/cm2/s
90%_error_low -1.80e-01 -1.12e-01 -9.54e-02 -1.38e-01 -3.30e-01 -3.67e-01 ph/cm2/s
90%_error_hi 1.97e-01 1.11e-01 9.49e-02 2.13e-01 3.30e-01 3.70e-01 ph/cm2/s
Fluence CPL 1.13e-07 2.12e-07 2.78e-07 4.79e-07 7.81e-07 1.08e-06 erg/cm2
90%_error_low -2.48e-08 -1.43e-08 -4.33e-08 -2.93e-07 -1.05e-07 -3.14e-07 erg/cm2
90%_error_hi 2.49e-08 2.82e-08 4.45e-08 3.32e-07 1.06e-07 3.63e-07 erg/cm2
Peak flux CPL 4.25e-01 4.50e-01 2.70e-01 1.19e-01 1.22e+00 1.26e+00 ph/cm2/s
90%_error_low -2.18e-01 -1.30e-01 -1.07e-01 -1.19e-01 -3.36e-01 -3.65e-01 ph/cm2/s
90%_error_hi 2.23e-01 1.41e-01 1.13e-01 1.77e-01 3.36e-01 4.04e-01 ph/cm2/s
======================================================================
Special notes of this burst