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: Wed Jun 21 15:49:43 EDT 2017
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger754549
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Trigger: 00754549 Segment: 000
BAT Trigger Time: 517498528.064 [s; MET]
Trigger Stop: 517498533.568 [s; MET]
UTC: 2017-05-26T13:35:08.944680 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 4.7079606442867 Dec: 1.23959674361896 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.86
Image Trigger?: NO
Rate S/N Ratio: 8.88819441731559 [ if not an image trigger ]
Image S/N Ratio: 6.86
Analysis Position: [ source = BAT ]
RA: 4.7079606442867 Dec: 1.23959674361896 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 4.72206259301582 Dec: 1.26388451149915 [deg; J2000]
{ 00h 18m 53.3s , +01d 15' 50.0" }
+/- 2.28072571444758 [arcmin] (estimated 90% radius based on SNR)
+/- 1.20631337243499 [arcmin] (formal 1-sigma fit error)
SNR: 9.36667471572096
Angular difference between the analysis and refined position is 1.684992 arcmin
Partial Coding Fraction: 0.9453125 [ including projection effects ]
Duration
T90: 8.31199997663498 +/- 2.44560012871808
Measured from: 0.163999974727631
to: 8.47599995136261 [s; relative to TRIGTIME]
T50: 3.77199989557266 +/- 1.805454017922
Measured from: 1.77200001478195
to: 5.54399991035461 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.53200000524521
to: 2.53200000524521 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.0720000267028809
to: 8.71599996089935 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.085131 0.071122 0.087485 0.017796
0.016827 0.017383 0.015037 0.012617 [error]
Peak 0.021345 0.008570 0.020577 0.004346
0.005770 0.006147 0.005220 0.004244 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 8.788 -0.072 8.716
T90 8.312 0.164 8.476
T50 3.772 1.772 5.544
Peak 1.000 1.532 2.532
====== 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 -1.118 -0.385 0.408 - - - 1.99e-03 -3.73e-04 3.70e-04 62.240 57
CPL -1.148 -0.355 0.448 9999.360 -9999.360 -9999.360 2.00e-03 -3.72e-04 -2.00e-03 62.290 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 -1.552 -0.782 0.679 - - - 3.26e-03 -1.32e-03 1.16e-03 73.690 57
CPL -1.545 -1.956 1.132 9999.360 N/A N/A 3.27e-03 N/A N/A 73.700 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 1.56e-08 3.63e-08 6.69e-08 2.95e-07 1.82e-07 4.14e-07 erg/cm2
90%_error_low -6.19e-09 -8.91e-09 -1.53e-08 -1.35e-07 -3.77e-08 -1.45e-07 erg/cm2
90%_error_hi 7.04e-09 8.28e-09 1.45e-08 2.08e-07 3.80e-08 2.09e-07 erg/cm2
Peak flux PL 1.41e-01 1.37e-01 9.38e-02 1.00e-01 4.12e-01 4.73e-01 ph/cm2/s
90%_error_low -1.41e-01 -4.88e-02 -4.87e-02 -7.56e-02 -1.37e-01 -1.62e-01 ph/cm2/s
90%_error_hi 8.64e-02 4.65e-02 4.47e-02 1.44e-01 1.37e-01 1.68e-01 ph/cm2/s
Fluence CPL 1.57e-08 3.64e-08 6.68e-08 3.05e-07 1.81e-07 4.00e-07 erg/cm2
90%_error_low N/A -9.43e-09 -1.52e-08 -1.97e-07 -3.75e-08 -1.54e-07 erg/cm2
90%_error_hi N/A 8.48e-09 1.47e-08 2.40e-07 3.81e-08 2.19e-07 erg/cm2
Peak flux CPL 1.30e-01 1.01e-01 5.46e-02 5.12e-02 3.05e-01 3.36e-01 ph/cm2/s
90%_error_low -1.30e-01 -1.01e-01 -5.46e-02 -5.12e-02 -3.05e-01 -3.36e-01 ph/cm2/s
90%_error_hi 9.13e-02 5.07e-02 2.14e-02 2.60e-02 1.47e-01 1.42e-01 ph/cm2/s
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