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 20:16:58 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger335895
======================================================================
Trigger: 00335895 Segment: 000
BAT Trigger Time: 249585528 [s; MET]
Trigger Stop: 249585616 [s; MET]
UTC: 2008-11-28T17:18:44.708060 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 20.7981962498564 Dec: 38.1151246414524 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 20.22
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 20.22
Analysis Position: [ source = BAT ]
RA: 20.7981962498564 Dec: 38.1151246414524 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 20.8010912395511 Dec: 38.1225509909459 [deg; J2000]
{ 01h 23m 12.3s , +38d 07' 21.2" }
+/- 0.957842186923752 [arcmin] (estimated 90% radius based on SNR)
+/- 0.313384247613815 [arcmin] (formal 1-sigma fit error)
SNR: 32.3475425452977
Angular difference between the analysis and refined position is 0.466065 arcmin
Partial Coding Fraction: 0.7421875 [ including projection effects ]
Duration
T90: 102.315999984741 +/- 10.6085107395872
Measured from: -48.8039999902248
to: 53.5119999945164 [s; relative to TRIGTIME]
T50: 32.0120000243187 +/- 5.52789290421497
Measured from: 3.9839999973774
to: 35.9960000216961 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 17.5959999859333
to: 18.5959999859333 [s; relative to TRIGTIME]
Total Fluence
Measured from: -68.9799999892712
to: 62.6599999964237 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.462672 1.830976 1.020446 0.176184
0.066113 0.069333 0.060676 0.053871 [error]
Peak 0.041708 0.053543 0.045269 0.016238
0.006528 0.007044 0.006156 0.005041 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 131.640 -68.980 62.660
T90 102.316 -48.804 53.512
T50 32.012 3.984 35.996
Peak 1.000 17.596 18.596
====== 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 -1.879 -0.087 0.086 - - - 2.11e-03 -1.13e-04 1.13e-04 69.730 57
CPL -0.940 -0.401 0.444 49.855 -5.355 8.065 6.91e-03 -2.71e-03 5.16e-03 51.620 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 -1.523 -0.230 0.227 - - - 1.02e-02 -1.37e-03 1.36e-03 58.200 57
CPL -1.461 -1.256 0.958 398.739 -398.739 -398.739 1.09e-02 -8.99e-03 2.22e-02 58.200 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 5.06e-07 7.39e-07 8.04e-07 1.64e-06 2.55e-06 3.69e-06 erg/cm2
90%_error_low -3.73e-08 -3.53e-08 -5.82e-08 -2.30e-07 -1.36e-07 -2.89e-07 erg/cm2
90%_error_hi 3.79e-08 3.53e-08 5.86e-08 2.54e-07 1.37e-07 3.07e-07 erg/cm2
Peak flux PL 4.28e-01 4.25e-01 2.96e-01 3.26e-01 1.28e+00 1.47e+00 ph/cm2/s
90%_error_low -9.25e-02 -5.89e-02 -5.05e-02 -1.01e-01 -1.69e-01 -1.94e-01 ph/cm2/s
90%_error_hi 9.79e-02 5.83e-02 4.98e-02 1.25e-01 1.69e-01 1.95e-01 ph/cm2/s
Fluence CPL 4.51e-07 8.13e-07 7.90e-07 4.33e-07 2.34e-06 2.49e-06 erg/cm2
90%_error_low -4.37e-08 -4.68e-08 -6.92e-08 -1.70e-07 -1.55e-07 -2.31e-07 erg/cm2
90%_error_hi 4.42e-08 4.76e-08 6.75e-08 2.83e-07 1.59e-07 3.18e-07 erg/cm2
Peak flux CPL 4.24e-01 4.28e-01 2.97e-01 3.03e-01 1.28e+00 1.45e+00 ph/cm2/s
90%_error_low -1.10e-01 -6.11e-02 -5.18e-02 -3.03e-01 -1.74e-01 -2.80e-01 ph/cm2/s
90%_error_hi 8.59e-02 7.14e-02 5.58e-02 9.41e-02 1.71e-01 2.15e-01 ph/cm2/s
======================================================================
Special notes of this burst