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: Sat Jan 20 04:29:50 EST 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger802999
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Trigger: 00802999 Segment: 000
BAT Trigger Time: 536601004.544 [s; MET]
Trigger Stop: 536601005.568 [s; MET]
UTC: 2018-01-02T15:49:44.290400 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 203.115129995838 Dec: 62.1481848328947 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.37
Image Trigger?: NO
Rate S/N Ratio: 11.8321595661992 [ if not an image trigger ]
Image S/N Ratio: 7.37
Analysis Position: [ source = BAT ]
RA: 203.115129995838 Dec: 62.1481848328947 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 203.072733292129 Dec: 62.1649485998259 [deg; J2000]
{ 13h 32m 17.5s , +62d 09' 53.8" }
+/- 1.4239082216829 [arcmin] (estimated 90% radius based on SNR)
+/- 0.73411187751022 [arcmin] (formal 1-sigma fit error)
SNR: 18.3593957443108
Angular difference between the analysis and refined position is 1.556685 arcmin
Partial Coding Fraction: 0.953125 [ including projection effects ]
Duration
T90: 11.5599999427795 +/- 1.73180249679767
Measured from: -6.14000004529953
to: 5.41999989748001 [s; relative to TRIGTIME]
T50: 3.91199994087219 +/- 1.9909956942061
Measured from: -0.760000050067902
to: 3.15199989080429 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.799999952316284
to: 1.79999995231628 [s; relative to TRIGTIME]
Total Fluence
Measured from: -7.6240000128746
to: 6.29999995231628 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.263254 0.264324 0.124075 0.037290
0.020722 0.021600 0.018211 0.014879 [error]
Peak 0.029316 0.045216 0.040163 0.010334
0.005642 0.006081 0.005437 0.004248 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 13.924 -7.624 6.300
T90 11.560 -6.140 5.420
T50 3.912 -0.760 3.152
Peak 1.000 0.800 1.800
====== 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 -2.025 -0.192 0.182 - - - 2.71e-03 -3.34e-04 3.26e-04 48.630 57
CPL -1.996 -0.021 0.736 4.565 -3.902 -4.565 2.83e-03 -1.45e-03 5.37e-04 48.630 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 -1.521 -0.253 0.244 - - - 7.85e-03 -1.19e-03 1.17e-03 52.240 57
CPL -0.813 -0.885 1.368 83.214 -27.975 -83.214 1.80e-02 -1.10e-02 6.60e-02 51.000 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 7.90e-08 1.06e-07 1.04e-07 1.83e-07 3.48e-07 4.72e-07 erg/cm2
90%_error_low -1.05e-08 -9.91e-09 -1.75e-08 -5.50e-08 -3.94e-08 -7.56e-08 erg/cm2
90%_error_hi 1.08e-08 9.89e-09 1.79e-08 6.91e-08 4.02e-08 8.65e-08 erg/cm2
Peak flux PL 3.30e-01 3.28e-01 2.28e-01 2.52e-01 9.86e-01 1.14e+00 ph/cm2/s
90%_error_low -7.42e-02 -4.83e-02 -4.43e-02 -8.62e-02 -1.40e-01 -1.66e-01 ph/cm2/s
90%_error_hi 7.86e-02 4.79e-02 4.38e-02 1.09e-01 1.40e-01 1.69e-01 ph/cm2/s
Fluence CPL 7.81e-08 1.06e-07 1.06e-07 1.81e-07 3.47e-07 4.58e-07 erg/cm2
90%_error_low -8.57e-09 -9.70e-09 -9.77e-09 N/A -4.30e-08 N/A erg/cm2
90%_error_hi 7.19e-09 9.90e-09 1.62e-08 N/A 4.25e-08 N/A erg/cm2
Peak flux CPL 2.91e-01 3.50e-01 2.41e-01 1.21e-01 9.58e-01 1.00e+00 ph/cm2/s
90%_error_low -9.66e-02 -5.88e-02 -4.97e-02 -1.21e-01 -1.49e-01 -1.78e-01 ph/cm2/s
90%_error_hi 9.65e-02 6.15e-02 5.18e-02 1.64e-01 1.47e-01 2.33e-01 ph/cm2/s
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