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 v2.48
Process Start Time: Wed Sep 9 22:55:30 EDT 2020
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger984929
======================================================================
Trigger: 00984929 Segment: 000
BAT Trigger Time: 617744310.464 [s; MET]
Trigger Stop: 617744318.656 [s; MET]
UTC: 2020-07-29T19:38:05.095420 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 184.374725606312 Dec: 45.5823142434638 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.81
Image Trigger?: NO
Rate S/N Ratio: 9.59166304662544 [ if not an image trigger ]
Image S/N Ratio: 8.81
Analysis Position: [ source = BAT ]
RA: 184.374725606312 Dec: 45.5823142434638 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 184.360293791043 Dec: 45.5705349045416 [deg; J2000]
{ 12h 17m 26.5s , +45d 34' 13.9" }
+/- 2.31868852413339 [arcmin] (estimated 90% radius based on SNR)
+/- 1.27353682534939 [arcmin] (formal 1-sigma fit error)
SNR: 9.14836544638276
Angular difference between the analysis and refined position is 0.931057 arcmin
Partial Coding Fraction: 0.4609375 [ including projection effects ]
Duration
T90: 122 +/- 34.2344855372474
Measured from: 1.53600001335144
to: 123.536000013351 [s; relative to TRIGTIME]
T50: 57 +/- 24.8243831746128
Measured from: 7.53600001335144
to: 64.5360000133514 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 5.53600001335144
to: 6.53600001335144 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.53600001335144
to: 136.536000013351 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.288433 0.584691 0.903058 0.193098
0.106651 0.111376 0.099071 0.087403 [error]
Peak 0.026092 0.023619 0.035718 0.025011
0.011558 0.011721 0.011197 0.009379 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 136.000 0.536 136.536
T90 122.000 1.536 123.536
T50 57.000 7.536 64.536
Peak 1.000 5.536 6.536
====== 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 -0.923 -0.260 0.278 - - - 1.05e-03 -1.72e-04 1.69e-04 41.610 57
CPL -0.001 -1.025 1.638 135.977 -48.998 -135.977 2.46e-03 -1.52e-03 7.02e-03 39.860 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 -0.721 -0.610 0.773 - - - 6.41e-03 -2.86e-03 2.59e-03 50.150 57
CPL -0.455 0.455 2.663 406.066 -406.066 -406.066 7.97e-03 -4.26e-03 1.36e-01 50.120 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 1.07e-07 2.80e-07 5.91e-07 3.21e-06 1.59e-06 4.19e-06 erg/cm2
90%_error_low -3.41e-08 -5.83e-08 -9.16e-08 -1.01e-06 -2.45e-07 -1.05e-06 erg/cm2
90%_error_hi 3.88e-08 5.73e-08 9.09e-08 1.32e-06 2.45e-07 1.32e-06 erg/cm2
Peak flux PL 1.26e-01 2.02e-01 2.45e-01 5.83e-01 7.40e-01 1.16e+00 ph/cm2/s
90%_error_low -9.02e-02 -1.12e-01 -8.25e-02 -3.26e-01 -2.84e-01 -3.89e-01 ph/cm2/s
90%_error_hi 1.37e-01 1.15e-01 8.23e-02 5.57e-01 2.95e-01 4.56e-01 ph/cm2/s
Fluence CPL 7.94e-08 2.85e-07 6.54e-07 1.32e-06 1.55e-06 2.33e-06 erg/cm2
90%_error_low -4.31e-08 -6.71e-08 -1.10e-07 -8.01e-07 -2.59e-07 -8.30e-07 erg/cm2
90%_error_hi 5.09e-08 6.47e-08 1.25e-07 2.28e-06 2.56e-07 2.29e-06 erg/cm2
Peak flux CPL 1.13e-01 2.00e-01 2.54e-01 5.88e-01 7.32e-01 1.14e+00 ph/cm2/s
90%_error_low -1.13e-01 -2.00e-01 -9.04e-02 -5.88e-01 -2.90e-01 -6.32e-01 ph/cm2/s
90%_error_hi 1.47e-01 1.19e-01 1.13e-01 5.21e-01 2.90e-01 4.18e-01 ph/cm2/s
======================================================================