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: Fri Oct 6 18:53:26 EDT 2023
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1180410
======================================================================
Trigger: 01180410 Segment: 000
BAT Trigger Time: 711805384.576 [s; MET]
Trigger Stop: 711805385.088 [s; MET]
UTC: 2023-07-23T11:42:32.881800 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 250.378850607907 Dec: -5.3272728850738 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.27
Image Trigger?: NO
Rate S/N Ratio: 14.247806848775 [ if not an image trigger ]
Image S/N Ratio: 8.27
Analysis Position: [ source = BAT ]
RA: 250.378850607907 Dec: -5.3272728850738 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 250.390286464428 Dec: -5.31940688710297 [deg; J2000]
{ 16h 41m 33.7s , -05d 19' 09.9" }
+/- 1.00654104356603 [arcmin] (estimated 90% radius based on SNR)
+/- 0.371707017118001 [arcmin] (formal 1-sigma fit error)
SNR: 30.135152673139
Angular difference between the analysis and refined position is 0.830360 arcmin
Partial Coding Fraction: 0.3984375 [ including projection effects ]
Duration
T90: 5.75599992275238 +/- 0.85248116255725
Measured from: 0.116000056266785
to: 5.87199997901917 [s; relative to TRIGTIME]
T50: 2.67199993133545 +/- 0.354039587178118
Measured from: 1.24000000953674
to: 3.91199994087219 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.6360000371933
to: 2.6360000371933 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.215999960899353
to: 7.93599998950958 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.728244 1.108567 0.708448 0.146779
0.050948 0.048669 0.039867 0.028660 [error]
Peak 0.142584 0.276029 0.153727 0.033304
0.019304 0.020048 0.016134 0.010812 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 8.152 -0.216 7.936
T90 5.756 0.116 5.872
T50 2.672 1.240 3.912
Peak 1.000 1.636 2.636
====== 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: 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 -1.807 -0.093 0.091 - - - 2.28e-02 -1.26e-03 1.25e-03 58.290 57
CPL -1.062 -0.408 0.447 63.907 -8.721 19.261 5.34e-02 -1.96e-02 3.49e-02 47.980 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 -1.861 -0.149 0.144 - - - 3.88e-02 -3.88e-03 3.86e-03 68.540 57
CPL -0.227 -0.782 0.983 53.771 -6.673 9.895 2.66e-01 -1.59e-01 5.94e-01 53.320 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 3.17e-07 4.83e-07 5.52e-07 1.21e-06 1.71e-06 2.56e-06 erg/cm2
90%_error_low -2.81e-08 -2.70e-08 -3.90e-08 -1.70e-07 -9.54e-08 -2.05e-07 erg/cm2
90%_error_hi 2.90e-08 2.70e-08 3.89e-08 1.86e-07 9.57e-08 2.16e-07 erg/cm2
Peak flux PL 2.26e+00 1.84e+00 1.01e+00 8.19e-01 5.48e+00 5.94e+00 ph/cm2/s
90%_error_low -3.22e-01 -1.81e-01 -1.24e-01 -1.76e-01 -5.43e-01 -5.64e-01 ph/cm2/s
90%_error_hi 3.35e-01 1.80e-01 1.23e-01 1.98e-01 5.44e-01 5.65e-01 ph/cm2/s
Fluence CPL 2.76e-07 5.16e-07 5.81e-07 4.98e-07 1.64e-06 1.87e-06 erg/cm2
90%_error_low -3.46e-08 -3.29e-08 -4.43e-08 -1.74e-07 -1.03e-07 -2.01e-07 erg/cm2
90%_error_hi 3.54e-08 3.35e-08 4.49e-08 2.86e-07 1.03e-07 2.94e-07 erg/cm2
Peak flux CPL 1.71e+00 2.15e+00 1.17e+00 2.41e-01 5.23e+00 5.27e+00 ph/cm2/s
90%_error_low -3.81e-01 -2.38e-01 -1.59e-01 -1.24e-01 -5.52e-01 -5.70e-01 ph/cm2/s
90%_error_hi 4.01e-01 2.48e-01 1.60e-01 1.88e-01 5.55e-01 5.79e-01 ph/cm2/s
======================================================================
Special notes of this burst