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 20 10:02:02 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger278693
======================================================================
Trigger: 00278693 Segment: 000
BAT Trigger Time: 200122560 [s; MET]
Trigger Stop: 200122624 [s; MET]
UTC: 2007-05-06T05:35:58.063600 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 347.217597658185 Dec: 10.7283397482321 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.48
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 8.48
Analysis Position: [ source = BAT ]
RA: 347.217597658185 Dec: 10.7283397482321 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 347.219739029459 Dec: 10.7108009152786 [deg; J2000]
{ 23h 08m 52.7s , +10d 42' 38.9" }
+/- 2.15721488756149 [arcmin] (estimated 90% radius based on SNR)
+/- 0.94215629109108 [arcmin] (formal 1-sigma fit error)
SNR: 10.142097842926
Angular difference between the analysis and refined position is 1.059875 arcmin
Partial Coding Fraction: 0.96875 [ including projection effects ]
Duration
T90: 5.99200001358986 +/- 1.40688165181272
Measured from: 4.17599999904633
to: 10.1680000126362 [s; relative to TRIGTIME]
T50: 2.44400000572205 +/- 0.704556592365783
Measured from: 5.3120000064373
to: 7.75600001215935 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 6.15599998831749
to: 7.15599998831749 [s; relative to TRIGTIME]
Total Fluence
Measured from: 3.78400000929832
to: 11.1839999854565 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.126807 0.162877 0.107280 0.004020
0.013052 0.013905 0.012558 0.012102 [error]
Peak 0.037965 0.053625 0.027751 0.000949
0.005103 0.005397 0.004791 0.004463 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 7.400 3.784 11.184
T90 5.992 4.176 10.168
T50 2.444 5.312 7.756
Peak 1.000 6.156 7.156
====== 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: N/A)
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 -1.728 -0.179 0.172 - - - 3.36e-03 -3.88e-04 3.82e-04 85.870 57
CPL -0.768 -0.764 0.928 55.123 -11.291 49.188 1.17e-02 -7.28e-03 2.77e-02 81.090 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 -1.682 -0.210 0.202 - - - 7.51e-03 -1.07e-03 1.05e-03 61.190 57
CPL -0.034 -1.037 1.393 49.225 -8.657 19.518 6.80e-02 -6.80e-02 3.96e-01 52.770 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 3.93e-08 6.29e-08 7.60e-08 1.80e-07 2.30e-07 3.58e-07 erg/cm2
90%_error_low -5.55e-09 -6.13e-09 -1.18e-08 -5.05e-08 -2.75e-08 -6.36e-08 erg/cm2
90%_error_hi 5.70e-09 6.13e-09 1.20e-08 6.24e-08 2.81e-08 7.32e-08 erg/cm2
Peak flux PL 3.68e-01 3.33e-01 2.07e-01 1.97e-01 9.91e-01 1.11e+00 ph/cm2/s
90%_error_low -6.43e-02 -4.12e-02 -3.75e-02 -6.07e-02 -1.22e-01 -1.42e-01 ph/cm2/s
90%_error_hi 6.66e-02 4.12e-02 3.80e-02 7.56e-02 1.22e-01 1.43e-01 ph/cm2/s
Fluence CPL 3.58e-08 7.03e-08 7.37e-08 4.20e-08 2.07e-07 2.22e-07 erg/cm2
90%_error_low -6.37e-09 -8.44e-09 -1.45e-08 -2.78e-08 -3.00e-08 -4.13e-08 erg/cm2
90%_error_hi 6.40e-09 8.78e-09 1.37e-08 8.40e-08 3.23e-08 8.77e-08 erg/cm2
Peak flux CPL 3.18e-01 4.01e-01 1.98e-01 3.05e-02 9.44e-01 9.48e-01 ph/cm2/s
90%_error_low -7.34e-02 -5.92e-02 -5.35e-02 -3.05e-02 -1.23e-01 -1.26e-01 ph/cm2/s
90%_error_hi 7.47e-02 6.27e-02 4.82e-02 6.17e-02 1.24e-01 1.31e-01 ph/cm2/s
======================================================================
Special notes of this burst