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: Fri Jan 17 18:49:09 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger420367
======================================================================
Trigger: 00420367 Segment: 000
BAT Trigger Time: 293819568 [s; MET]
Trigger Stop: 293819632 [s; MET]
UTC: 2010-04-24T16:32:42.263180 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 209.453330722996 Dec: 1.51343266694002 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.47
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 10.47
Analysis Position: [ source = BAT ]
RA: 209.453330722996 Dec: 1.51343266694002 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 209.444975838635 Dec: 1.52375254249162 [deg; J2000]
{ 13h 57m 46.8s , +01d 31' 25.5" }
+/- 1.35854646636717 [arcmin] (estimated 90% radius based on SNR)
+/- 0.494360887215739 [arcmin] (formal 1-sigma fit error)
SNR: 19.6341432578086
Angular difference between the analysis and refined position is 0.796566 arcmin
Partial Coding Fraction: 0.8828125 [ including projection effects ]
Duration
T90: 104 +/- 14.560219778561
Measured from: 27
to: 131 [s; relative to TRIGTIME]
T50: 44 +/- 8.94427190999916
Measured from: 46
to: 90 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 75
to: 76 [s; relative to TRIGTIME]
Total Fluence
Measured from: 22
to: 147 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.985837 1.104502 0.599253 0.088022
0.060066 0.060825 0.053893 0.048584 [error]
Peak 0.007358 0.028922 0.001495 0.013557
0.005471 0.005652 0.005024 0.004537 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 125.000 22.000 147.000
T90 104.000 27.000 131.000
T50 44.000 46.000 90.000
Peak 1.000 75.000 76.000
====== 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 -1.834 -0.131 0.127 - - - 1.31e-03 -1.02e-04 1.01e-04 52.530 57
CPL -1.690 -0.449 0.506 95.251 -73.892 -95.251 1.57e-03 -5.24e-04 1.39e-03 52.250 56
=== 1-s peak 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 -1.726 -0.753 0.681 - - - 2.48e-03 -1.15e-03 1.09e-03 60.190 57
CPL 5.008 N/A N/A 34.673 N/A N/A 5.40e+01 N/A N/A 55.620 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 2.85e-07 4.28e-07 4.80e-07 1.02e-06 1.50e-06 2.21e-06 erg/cm2
90%_error_low -2.92e-08 -2.81e-08 -5.20e-08 -2.11e-07 -1.18e-07 -2.64e-07 erg/cm2
90%_error_hi 2.99e-08 2.81e-08 5.24e-08 2.47e-07 1.19e-07 2.92e-07 erg/cm2
Peak flux PL 1.27e-01 1.12e-01 6.75e-02 6.17e-02 3.33e-01 3.68e-01 ph/cm2/s
90%_error_low -6.62e-02 -4.23e-02 -3.78e-02 -6.17e-02 -1.26e-01 -1.43e-01 ph/cm2/s
90%_error_hi 7.14e-02 4.22e-02 4.00e-02 1.00e-01 1.26e-01 1.49e-01 ph/cm2/s
Fluence CPL 2.80e-07 4.35e-07 4.79e-07 7.79e-07 1.48e-06 1.97e-06 erg/cm2
90%_error_low -3.30e-08 -1.74e-08 -5.40e-08 -4.37e-07 -1.42e-07 -4.68e-07 erg/cm2
90%_error_hi 3.09e-08 3.61e-08 5.36e-08 5.90e-07 1.38e-07 3.41e-07 erg/cm2
Peak flux CPL 7.11e-02 2.12e-01 9.52e-03 1.62e-07 2.74e-01 2.74e-01 ph/cm2/s
90%_error_low -3.05e-02 -7.60e-02 -5.95e-03 -1.62e-07 -7.78e-02 -7.76e-02 ph/cm2/s
90%_error_hi 6.49e-02 5.91e-02 2.16e-02 5.04e-05 1.18e-01 1.18e-01 ph/cm2/s
======================================================================
Special notes of this burst