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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Tue May 5 10:38:07 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger635289
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Trigger: 00635289 Segment: 000
BAT Trigger Time: 448355106.624 [s; MET]
Trigger Stop: 448355123.008 [s; MET]
UTC: 2015-03-18T07:04:53.299140 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 324.970714696083 Dec: -61.4766556855567 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.87
Image Trigger?: NO
Rate S/N Ratio: 10.0995049383621 [ if not an image trigger ]
Image S/N Ratio: 9.87
Analysis Position: [ source = BAT ]
RA: 324.970714696083 Dec: -61.4766556855567 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 324.988048838298 Dec: -61.4611862967479 [deg; J2000]
{ 21h 39m 57.1s , -61d 27' 40.3" }
+/- 1.19149830001568 [arcmin] (estimated 90% radius based on SNR)
+/- 0.418628160288125 [arcmin] (formal 1-sigma fit error)
SNR: 23.681733210239
Angular difference between the analysis and refined position is 1.052740 arcmin
Partial Coding Fraction: 0.4453125 [ including projection effects ]
Duration
T90: 87.4439999461174 +/- 20.8383346645468
Measured from: 3.03600001335144
to: 90.4799999594688 [s; relative to TRIGTIME]
T50: 42.5719999074936 +/- 4.02978513486005
Measured from: 23.6800000071526
to: 66.2519999146461 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 66.6159999966621
to: 67.6159999966621 [s; relative to TRIGTIME]
Total Fluence
Measured from: -4.51600003242493
to: 115.004000008106 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.596368 1.902663 0.749545 0.195369
0.088456 0.091099 0.079386 0.069927 [error]
Peak 0.050931 0.059104 0.015600 0.006037
0.008889 0.009238 0.007454 0.006793 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 119.520 -4.516 115.004
T90 87.444 3.036 90.480
T50 42.572 23.680 66.252
Peak 1.000 66.616 67.616
====== 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 -2.057 -0.122 0.119 - - - 2.22e-03 -1.74e-04 1.71e-04 69.300 57
CPL -1.529 -0.490 0.633 36.300 -32.017 14.100 4.51e-03 -2.18e-03 6.11e-03 66.470 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 -2.039 -0.384 0.353 - - - 7.39e-03 -1.92e-03 1.86e-03 57.880 57
CPL -1.116 -1.005 5.451 34.984 N/A N/A 2.83e-02 N/A N/A 57.220 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 5.73e-07 7.51e-07 7.22e-07 1.23e-06 2.45e-06 3.28e-06 erg/cm2
90%_error_low -5.23e-08 -4.69e-08 -7.70e-08 -2.45e-07 -1.77e-07 -3.33e-07 erg/cm2
90%_error_hi 5.33e-08 4.69e-08 7.82e-08 2.84e-07 1.79e-07 3.61e-07 erg/cm2
Peak flux PL 5.11e-01 3.75e-01 1.83e-01 1.26e-01 1.13e+00 1.19e+00 ph/cm2/s
90%_error_low -1.39e-01 -7.56e-02 -5.96e-02 -6.37e-02 -2.27e-01 -2.41e-01 ph/cm2/s
90%_error_hi 1.44e-01 7.55e-02 6.21e-02 9.54e-02 2.27e-01 2.42e-01 ph/cm2/s
Fluence CPL 5.48e-07 7.96e-07 6.94e-07 4.81e-07 2.31e-06 2.52e-06 erg/cm2
90%_error_low -5.91e-08 -6.51e-08 -9.74e-08 -2.85e-07 -2.22e-07 -3.71e-07 erg/cm2
90%_error_hi 5.92e-08 6.71e-08 8.94e-08 7.46e-07 2.28e-07 7.79e-07 erg/cm2
Peak flux CPL 4.94e-01 4.19e-01 1.63e-01 3.02e-02 1.10e+00 1.11e+00 ph/cm2/s
90%_error_low -7.96e-02 N/A -1.29e-01 -3.02e-02 -2.42e-01 -2.48e-01 ph/cm2/s
90%_error_hi 1.50e-01 N/A 7.79e-02 1.32e-01 2.35e-01 3.07e-01 ph/cm2/s
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