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: Mon Dec 17 16:03:58 EST 2018
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger870201
======================================================================
Trigger: 00870201 Segment: 000
BAT Trigger Time: 562911772.288 [s; MET]
Trigger Stop: 562911774.336 [s; MET]
UTC: 2018-11-03T04:22:30.430260 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 197.10891460287 Dec: 52.2305069576985 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7
Image Trigger?: NO
Rate S/N Ratio: 10.770329614269 [ if not an image trigger ]
Image S/N Ratio: 7
Analysis Position: [ source = BAT ]
RA: 197.10891460287 Dec: 52.2305069576985 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 197.090349965947 Dec: 52.222041269635 [deg; J2000]
{ 13h 08m 21.7s , +52d 13' 19.3" }
+/- 1.92698730902695 [arcmin] (estimated 90% radius based on SNR)
+/- 0.892041234210368 [arcmin] (formal 1-sigma fit error)
SNR: 11.9164964495664
Angular difference between the analysis and refined position is 0.850610 arcmin
Partial Coding Fraction: 0.7890625 [ including projection effects ]
Duration
T90: 9.16800010204315 +/- 2.87293578110704
Measured from: -0.728000044822693
to: 8.44000005722046 [s; relative to TRIGTIME]
T50: 3.48800003528595 +/- 1.34001790374638
Measured from: 0.407999992370605
to: 3.89600002765656 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.388000011444092
to: 0.611999988555908 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.22399997711182
to: 9.96000003814697 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.222852 0.189819 0.109921 0.058467
0.025520 0.026439 0.022445 0.019302 [error]
Peak 0.033007 0.050885 0.018616 0.014112
0.007796 0.008321 0.007122 0.005728 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 11.184 -1.224 9.960
T90 9.168 -0.728 8.440
T50 3.488 0.408 3.896
Peak 1.000 -0.388 0.612
====== 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 -1.932 -0.280 0.261 - - - 2.77e-03 -5.08e-04 4.89e-04 45.820 57
CPL -1.945 -0.673 1.007 9999.360 N/A N/A 2.75e-03 N/A N/A 45.830 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 -1.746 -0.385 0.368 - - - 6.30e-03 -1.62e-03 1.57e-03 75.780 57
CPL -1.352 7.157 1.352 63.187 -36.618 -31.578 1.11e-02 -1.11e-02 4.25e+06 75.580 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 5.95e-08 8.41e-08 8.81e-08 1.70e-07 2.85e-07 4.02e-07 erg/cm2
90%_error_low -1.15e-08 -1.18e-08 -2.16e-08 -7.05e-08 -4.93e-08 -9.71e-08 erg/cm2
90%_error_hi 1.18e-08 1.17e-08 2.22e-08 9.80e-08 5.08e-08 1.19e-07 erg/cm2
Peak flux PL 3.28e-01 2.86e-01 1.70e-01 1.53e-01 8.50e-01 9.37e-01 ph/cm2/s
90%_error_low -1.02e-01 -6.30e-02 -5.46e-02 -7.68e-02 -1.87e-01 -2.11e-01 ph/cm2/s
90%_error_hi 1.06e-01 6.28e-02 5.58e-02 1.14e-01 1.87e-01 2.13e-01 ph/cm2/s
Fluence CPL 5.98e-08 8.32e-08 8.84e-08 2.12e-07 2.87e-07 3.96e-07 erg/cm2
90%_error_low -1.26e-08 -1.77e-08 -2.12e-08 -1.49e-07 -5.09e-08 -1.55e-07 erg/cm2
90%_error_hi 1.20e-08 1.15e-08 1.21e-08 2.27e-08 3.97e-08 6.51e-08 erg/cm2
Peak flux CPL 3.25e-01 3.03e-01 1.66e-01 7.75e-02 8.42e-01 8.71e-01 ph/cm2/s
90%_error_low -1.04e-01 1.06e-02 N/A -7.75e-02 -2.48e-01 -2.78e-01 ph/cm2/s
90%_error_hi 1.08e-01 2.21e-01 N/A 1.05e-01 7.18e-02 4.22e-02 ph/cm2/s
======================================================================
Special notes of this burst