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: Sat May 9 19:51:32 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger146970
======================================================================
Trigger: 00146970 Segment: 000
BAT Trigger Time: 143612953.92 [s; MET]
Trigger Stop: 143612959.424 [s; MET]
UTC: 2005-07-21T04:29:14.287540 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 253.445004837197 Dec: -28.3896705827692 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.22
Image Trigger?: NO
Rate S/N Ratio: 15.0996688705415 [ if not an image trigger ]
Image S/N Ratio: 6.22
Analysis Position: [ source = BAT ]
RA: 253.445004837197 Dec: -28.3896705827692 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 253.460659468508 Dec: -28.3903491142184 [deg; J2000]
{ 16h 53m 50.6s , -28d 23' 25.3" }
+/- 2.03681501200638 [arcmin] (estimated 90% radius based on SNR)
+/- 0.800982294029788 [arcmin] (formal 1-sigma fit error)
SNR: 11.0092813273957
Angular difference between the analysis and refined position is 0.827315 arcmin
Partial Coding Fraction: 0.06445312 [ including projection effects ]
Duration
T90: 104.700000017881 +/- 46.1094553424698
Measured from: -1.1879999935627
to: 103.512000024319 [s; relative to TRIGTIME]
T50: 29.8200000226498 +/- 10.9214184160366
Measured from: 3.75200000405312
to: 33.5720000267029 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 3.89600002765656
to: 4.89600002765656 [s; relative to TRIGTIME]
Total Fluence
Measured from: -3.63999998569489
to: 149.552000015974 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.173287 2.598408 1.644830 0.309012
0.256747 0.231853 0.194384 0.163346 [error]
Peak 0.104866 0.190062 0.045173 0.013294
0.025885 0.025161 0.022166 0.014254 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 153.192 -3.640 149.552
T90 104.700 -1.188 103.512
T50 29.820 3.752 33.572
Peak 1.000 3.896 4.896
====== 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 -1.862 -0.184 0.178 - - - 2.82e-03 -3.14e-04 3.10e-04 89.680 57
CPL -1.092 -0.780 0.952 54.416 -13.149 516.402 7.28e-03 -4.43e-03 1.60e-02 86.870 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 -2.349 -0.345 0.306 - - - 1.56e-02 -4.29e-03 4.26e-03 86.890 57
CPL 1.762 -1.949 3.546 38.965 -6.539 6.648 3.45e+00 -3.45e+00 2.92e+02 71.160 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 7.76e-07 1.15e-06 1.26e-06 2.61e-06 3.98e-06 5.79e-06 erg/cm2
90%_error_low -1.21e-07 -1.16e-07 -1.87e-07 -7.16e-07 -4.39e-07 -9.11e-07 erg/cm2
90%_error_hi 1.26e-07 1.16e-07 1.87e-07 8.75e-07 4.43e-07 1.02e-06 erg/cm2
Peak flux PL 1.46e+00 8.97e-01 3.53e-01 1.87e-01 2.81e+00 2.90e+00 ph/cm2/s
90%_error_low -3.89e-01 -2.02e-01 -1.16e-01 -9.10e-02 -6.30e-01 -6.48e-01 ph/cm2/s
90%_error_hi 4.04e-01 2.02e-01 1.19e-01 1.21e-01 6.32e-01 6.48e-01 ph/cm2/s
Fluence CPL 6.98e-07 1.24e-06 1.27e-06 8.99e-07 3.74e-06 4.11e-06 erg/cm2
90%_error_low -1.46e-07 -1.51e-07 -2.12e-07 -5.69e-07 -4.92e-07 -7.67e-07 erg/cm2
90%_error_hi 1.49e-07 1.57e-07 2.08e-07 1.75e-06 5.03e-07 1.78e-06 erg/cm2
Peak flux CPL 9.47e-01 1.44e+00 3.93e-01 8.00e-03 2.79e+00 2.79e+00 ph/cm2/s
90%_error_low -4.70e-01 -3.12e-01 -1.80e-01 -8.00e-03 -6.32e-01 -6.32e-01 ph/cm2/s
90%_error_hi 4.89e-01 3.18e-01 1.93e-01 3.64e-02 6.35e-01 6.35e-01 ph/cm2/s
======================================================================
Special notes of this burst