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 15:29:34 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger436737
======================================================================
Trigger: 00436737 Segment: 000
BAT Trigger Time: 309310848 [s; MET]
Trigger Stop: 309310912 [s; MET]
UTC: 2010-10-20T23:40:41.709060 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 189.566423306271 Dec: 23.1609361221947 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 13.24
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 13.24
Analysis Position: [ source = BAT ]
RA: 189.566423306271 Dec: 23.1609361221947 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 189.576407827723 Dec: 23.18286537218 [deg; J2000]
{ 12h 38m 18.3s , +23d 10' 58.3" }
+/- 1.77243961034988 [arcmin] (estimated 90% radius based on SNR)
+/- 0.763091014324163 [arcmin] (formal 1-sigma fit error)
SNR: 13.4281539841749
Angular difference between the analysis and refined position is 1.426369 arcmin
Partial Coding Fraction: 0.4296875 [ including projection effects ]
Duration
T90: 172.336000025272 +/- 29.2958033946059
Measured from: -33.0479999780655
to: 139.288000047207 [s; relative to TRIGTIME]
T50: 72.3360000252724 +/- 18.4150842352333
Measured from: -2.05599999427795
to: 70.2800000309944 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -15.3640000224113
to: -14.3640000224113 [s; relative to TRIGTIME]
Total Fluence
Measured from: -43.7519999742508
to: 164.871999979019 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.583107 1.894857 0.768568 0.230673
0.132182 0.130562 0.118649 0.113421 [error]
Peak 0.022940 0.018330 0.031594 0.011053
0.009106 0.009058 0.007990 0.007430 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 208.624 -43.752 164.872
T90 172.336 -33.048 139.288
T50 72.336 -2.056 70.280
Peak 1.000 -15.364 -14.364
====== 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 -2.073 -0.178 0.170 - - - 1.32e-03 -1.49e-04 1.46e-04 63.950 57
CPL -1.608 -0.528 0.871 35.153 -27.434 -35.153 2.44e-03 N/A N/A 62.760 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 -1.539 -0.773 0.689 - - - 4.76e-03 -1.89e-03 1.82e-03 50.820 57
CPL -0.627 -2.087 0.627 88.159 -88.159 -88.159 1.18e-02 -1.18e-02 1.98e+02 50.580 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 6.05e-07 7.85e-07 7.46e-07 1.26e-06 2.56e-06 3.39e-06 erg/cm2
90%_error_low -7.64e-08 -6.84e-08 -1.15e-07 -3.49e-07 -2.60e-07 -4.83e-07 erg/cm2
90%_error_hi 7.86e-08 6.84e-08 1.17e-07 4.31e-07 2.65e-07 5.44e-07 erg/cm2
Peak flux PL 2.03e-01 2.00e-01 1.38e-01 1.49e-01 6.00e-01 6.90e-01 ph/cm2/s
90%_error_low -1.19e-01 -8.35e-02 -6.88e-02 -1.49e-01 -2.32e-01 -2.59e-01 ph/cm2/s
90%_error_hi 1.50e-01 8.04e-02 6.48e-02 1.99e-01 2.34e-01 2.62e-01 ph/cm2/s
Fluence CPL 5.78e-07 8.26e-07 7.27e-07 5.58e-07 2.43e-06 2.69e-06 erg/cm2
90%_error_low -8.84e-08 -9.13e-08 -1.37e-07 -3.88e-07 -3.13e-07 -5.20e-07 erg/cm2
90%_error_hi 8.71e-08 9.57e-08 1.28e-07 1.15e-06 3.25e-07 1.26e-06 erg/cm2
Peak flux CPL 1.53e-01 2.05e-01 1.55e-01 8.12e-02 5.64e-01 6.00e-01 ph/cm2/s
90%_error_low -1.53e-01 -1.56e-01 N/A -8.12e-02 -3.35e-01 -6.00e-01 ph/cm2/s
90%_error_hi 2.48e-01 9.24e-02 N/A 1.83e-01 2.58e-01 3.28e-01 ph/cm2/s
======================================================================
Special notes of this burst