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: Thu Aug 15 13:49:24 EDT 2019
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger915091
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Trigger: 00915091 Segment: 000
BAT Trigger Time: 585117698.432 [s; MET]
Trigger Stop: 585117698.944 [s; MET]
UTC: 2019-07-18T04:41:15.172960 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 336.531055639195 Dec: -41.2205538392556 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.69
Image Trigger?: NO
Rate S/N Ratio: 18.1383571472171 [ if not an image trigger ]
Image S/N Ratio: 6.69
Analysis Position: [ source = BAT ]
RA: 336.531055639195 Dec: -41.2205538392556 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 336.604594815907 Dec: -41.1846234934104 [deg; J2000]
{ 22h 26m 25.1s , -41d 11' 04.6" }
+/- 2.37820103716609 [arcmin] (estimated 90% radius based on SNR)
+/- 1.74004162179059 [arcmin] (formal 1-sigma fit error)
SNR: 8.82308434990661
Angular difference between the analysis and refined position is 3.958352 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 704 +/- 995.606347910659
Measured from: 0.567999958992004
to: 704.567999958992 [s; relative to TRIGTIME]
T50: 720 +/- 526.847226432863
Measured from: 0.567999958992004
to: 720.567999958992 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 8.067999958992
to: 9.067999958992 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.567999958992004
to: 720.567999958992 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total -0.098545 0.293496 -0.115436 -0.268469
0.186895 0.192186 0.167241 0.145606 [error]
Peak 0.009677 0.004320 0.017487 0.001762
0.007032 0.007311 0.006346 0.005256 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 720.000 0.568 720.568
T90 704.000 0.568 704.568
T50 720.000 0.568 720.568
Peak 1.000 8.068 9.068
====== 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 -1.500 1.500 1.500 - - - 0.00e+00 0.00e+00 4.26e-05 70.390 57
CPL 6.328 N/A N/A 44.522 N/A N/A 6.55e-01 N/A N/A 68.680 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 -0.349 -1.308 0.349 - - - 1.93e-03 -1.93e-03 1.45e-03 57.990 57
CPL -0.325 N/A N/A 9971.570 N/A N/A 1.93e-03 N/A N/A 57.990 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 7.20e-28 7.20e-28 7.21e-28 7.21e-28 7.21e-28 8.03e-28 erg/cm2
90%_error_low 7.20e+02 7.20e+02 7.20e+02 7.20e+02 7.20e+02 7.20e+02 erg/cm2
90%_error_hi -1.66e-31 0.00e+00 -8.30e-31 3.03e-06 -6.64e-31 3.03e-06 erg/cm2
Peak flux PL 2.67e-02 5.37e-02 8.44e-02 2.93e-01 2.35e-01 4.57e-01 ph/cm2/s
90%_error_low -2.67e-02 -5.37e-02 -8.44e-02 -2.93e-01 -2.35e-01 -2.73e-01 ph/cm2/s
90%_error_hi 7.92e-02 6.41e-02 4.65e-02 1.01e+00 1.53e-01 8.81e-01 ph/cm2/s
Fluence CPL 7.15e-09 1.01e-07 3.95e-08 7.14e-11 1.44e-07 1.43e-07 erg/cm2
90%_error_low 7.20e+02 7.20e+02 N/A N/A 7.20e+02 7.20e+02 erg/cm2
90%_error_hi 5.32e-08 1.25e-07 N/A N/A 2.07e-07 2.08e-07 erg/cm2
Peak flux CPL 1.96e-02 4.93e-02 1.15e-01 2.46e-01 2.27e-01 4.04e-01 ph/cm2/s
90%_error_low -1.96e-02 -4.93e-02 -7.28e-02 -2.46e-01 -2.27e-01 N/A ph/cm2/s
90%_error_hi 5.94e-02 5.32e-02 6.74e-02 2.11e-01 1.55e-01 N/A ph/cm2/s
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