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 v2.47
Process Start Time: Tue Jun 2 00:12:58 EDT 2020
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger953689
======================================================================
Trigger: 00953689 Segment: 000
BAT Trigger Time: 602203300.352 [s; MET]
Trigger Stop: 602203301.376 [s; MET]
UTC: 2020-01-31T22:41:15.994140 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 3.09544610319421 Dec: 51.123636218354 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 25.71
Image Trigger?: NO
Rate S/N Ratio: 255.998046867549 [ if not an image trigger ]
Image S/N Ratio: 25.71
Analysis Position: [ source = BAT ]
RA: 3.09544610319421 Dec: 51.123636218354 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 3.08896096317396 Dec: 51.1248790912871 [deg; J2000]
{ 00h 12m 21.4s , +51d 07' 29.6" }
+/- 0.471353036202913 [arcmin] (estimated 90% radius based on SNR)
+/- 0.137591063685911 [arcmin] (formal 1-sigma fit error)
SNR: 89.077190335919
Angular difference between the analysis and refined position is 0.255349 arcmin
Partial Coding Fraction: 0.9609375 [ including projection effects ]
Duration
T90: 32.7399998903275 +/- 0.879054111945978
Measured from: -1.96399998664856
to: 30.7759999036789 [s; relative to TRIGTIME]
T50: 1.7279999256134 +/- 0.0509117071272196
Measured from: -0.547999978065491
to: 1.17999994754791 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.0160000324249268
to: 1.01600003242493 [s; relative to TRIGTIME]
Total Fluence
Measured from: -3.45200002193451
to: 46.555999994278 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.440416 3.793163 3.287559 0.869917
0.047341 0.051926 0.047015 0.036720 [error]
Peak 0.619115 1.194116 1.211314 0.341292
0.013797 0.018504 0.019321 0.012540 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 50.008 -3.452 46.556
T90 32.740 -1.964 30.776
T50 1.728 -0.548 1.180
Peak 1.000 0.016 1.016
====== 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 -1.315 -0.035 0.036 - - - 1.41e-02 -2.66e-04 2.66e-04 41.540 57
CPL -1.174 -0.072 0.145 348.736 -145.137 7122.904 1.62e-02 -1.90e-03 2.39e-03 38.620 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: CPL)
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 -1.082 -0.035 0.035 - - - 2.32e-01 -4.71e-03 4.71e-03 77.030 57
CPL -0.616 -0.150 0.155 179.646 -29.951 55.292 3.64e-01 -4.83e-02 5.74e-02 47.390 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 7.59e-07 1.56e-06 2.51e-06 9.03e-06 6.96e-06 1.39e-05 erg/cm2
90%_error_low -3.11e-08 -3.74e-08 -5.20e-08 -4.40e-07 -1.32e-07 -4.58e-07 erg/cm2
90%_error_hi 3.17e-08 3.73e-08 5.19e-08 4.56e-07 1.32e-07 4.71e-07 erg/cm2
Peak flux PL 1.82e-03 2.17e-02 3.43e-01 2.98e+01 1.55e+00 3.00e+01 ph/cm2/s
90%_error_low N/A N/A N/A N/A N/A N/A ph/cm2/s
90%_error_hi N/A N/A N/A N/A N/A N/A ph/cm2/s
Fluence CPL 7.28e-07 1.57e-06 2.55e-06 7.61e-06 6.91e-06 1.25e-05 erg/cm2
90%_error_low -4.24e-08 -3.84e-08 -6.29e-08 -1.17e-06 -1.41e-07 -1.17e-06 erg/cm2
90%_error_hi 4.33e-08 3.84e-08 6.33e-08 1.42e-06 1.41e-07 1.15e-06 erg/cm2
Peak flux CPL 5.56e+00 8.38e+00 8.28e+00 8.80e+00 2.63e+01 3.10e+01 ph/cm2/s
90%_error_low -3.56e-01 -2.26e-01 -2.21e-01 -9.89e-01 -5.93e-01 -1.19e+00 ph/cm2/s
90%_error_hi 3.64e-01 2.26e-01 2.22e-01 1.15e+00 5.95e-01 1.31e+00 ph/cm2/s
======================================================================
Special notes of this burst