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 Jun 12 01:54:47 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger519256
======================================================================
Trigger: 00519256 Segment: 000
BAT Trigger Time: 355178044.544 [s; MET]
Trigger Stop: 355178046.592 [s; MET]
UTC: 2012-04-03T20:33:56.481060 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 54.8088242661129 Dec: -89.0369268415211 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.17
Image Trigger?: NO
Rate S/N Ratio: 13 [ if not an image trigger ]
Image S/N Ratio: 7.17
Analysis Position: [ source = BAT ]
RA: 54.8088242661129 Dec: -89.0369268415211 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 54.3070003273007 Dec: -89.0291744260173 [deg; J2000]
{ 03h 37m 13.7s , -89d 01' 45.0" }
+/- 2.44072116868332 [arcmin] (estimated 90% radius based on SNR)
+/- 1.33412987402905 [arcmin] (formal 1-sigma fit error)
SNR: 8.50199797779882
Angular difference between the analysis and refined position is 0.688866 arcmin
Partial Coding Fraction: 0.4765625 [ including projection effects ]
Duration
T90: 7.28399991989136 +/- 1.919334249261
Measured from: -2.60000002384186
to: 4.6839998960495 [s; relative to TRIGTIME]
T50: 2.27199995517731 +/- 2.14724098740904
Measured from: -0.636000037193298
to: 1.63599991798401 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.915999948978424
to: 1.91599994897842 [s; relative to TRIGTIME]
Total Fluence
Measured from: -2.96000003814697
to: 5.32799994945526 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.142074 0.114404 0.104750 -0.030197
0.022381 0.022587 0.019270 0.016285 [error]
Peak 0.029840 0.032613 0.045793 0.002905
0.008140 0.008556 0.007579 0.005806 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 8.288 -2.960 5.328
T90 7.284 -2.600 4.684
T50 2.272 -0.636 1.636
Peak 1.000 0.916 1.916
====== 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 -1.785 -0.323 0.304 - - - 2.72e-03 -5.67e-04 5.50e-04 47.170 57
CPL -1.303 -0.786 1.216 65.597 -50.428 -65.597 5.02e-03 -5.02e-03 1.79e-02 46.470 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 -1.302 -0.343 0.347 - - - 7.93e-03 -1.65e-03 1.64e-03 53.370 57
CPL -0.526 -0.973 1.917 105.624 N/A N/A 1.81e-02 N/A N/A 52.430 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 3.77e-08 5.82e-08 6.76e-08 1.51e-07 2.08e-07 3.14e-07 erg/cm2
90%_error_low -9.60e-09 -1.04e-08 -1.84e-08 -6.87e-08 -4.33e-08 -9.09e-08 erg/cm2
90%_error_hi 1.00e-08 1.04e-08 1.87e-08 9.84e-08 4.44e-08 1.14e-07 erg/cm2
Peak flux PL 2.70e-01 3.06e-01 2.48e-01 3.36e-01 9.47e-01 1.16e+00 ph/cm2/s
90%_error_low -9.58e-02 -7.33e-02 -6.00e-02 -1.41e-01 -2.03e-01 -2.45e-01 ph/cm2/s
90%_error_hi 1.07e-01 7.17e-02 5.88e-02 1.89e-01 2.04e-01 2.49e-01 ph/cm2/s
Fluence CPL 3.58e-08 6.20e-08 6.84e-08 7.03e-08 2.00e-07 2.37e-07 erg/cm2
90%_error_low -1.08e-08 -1.24e-08 -2.03e-08 -5.56e-08 -4.51e-08 -7.58e-08 erg/cm2
90%_error_hi 1.08e-08 1.34e-08 2.03e-08 1.07e-07 4.69e-08 1.23e-07 erg/cm2
Peak flux CPL 2.25e-01 3.22e-01 2.72e-01 1.74e-01 9.20e-01 9.93e-01 ph/cm2/s
90%_error_low -1.22e-01 -8.22e-02 -7.27e-02 -1.74e-01 -2.11e-01 -2.58e-01 ph/cm2/s
90%_error_hi 1.31e-01 8.47e-02 7.77e-02 2.24e-01 2.09e-01 3.18e-01 ph/cm2/s
======================================================================
Special notes of this burst