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: Sat Oct 19 15:08:56 EDT 2024
Host Name: batproc1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1243868
======================================================================
Trigger: 01243868 Segment: 000
BAT Trigger Time: 743127925.12 [s; MET]
Trigger Stop: 743127926.144 [s; MET]
UTC: 2024-07-20T00:24:51.280960 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 96.7003376506726 Dec: 30.341801542182 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.44
Image Trigger?: NO
Rate S/N Ratio: 42.7784992724149 [ if not an image trigger ]
Image S/N Ratio: 11.44
Analysis Position: [ source = BAT ]
RA: 96.7003376506726 Dec: 30.341801542182 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 96.7212681456265 Dec: 30.2983272931622 [deg; J2000]
{ 06h 26m 53.1s , +30d 17' 54.0" }
+/- 2.77813048284198 [arcmin] (estimated 90% radius based on SNR)
+/- 1.31120251710562 [arcmin] (formal 1-sigma fit error)
SNR: 7.06620182279653
Angular difference between the analysis and refined position is 2.824750 arcmin
Partial Coding Fraction: 0.578125 [ including projection effects ]
Duration
T90: 183.475999951363 +/- 71.4742999976275
Measured from: 0.111999988555908
to: 183.587999939919 [s; relative to TRIGTIME]
T50: 82.4679999351501 +/- 38.5907505309544
Measured from: 1.67599999904633
to: 84.1439999341965 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.439999938011169
to: 1.43999993801117 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.116000056266785
to: 193.891999959946 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.807708 1.031641 0.832938 0.316659
0.114737 0.117119 0.099819 0.085187 [error]
Peak 0.062113 0.105769 0.124533 0.047205
0.009619 0.011121 0.011392 0.009624 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 194.008 -0.116 193.892
T90 183.476 0.112 183.588
T50 82.468 1.676 84.144
Peak 1.000 0.440 1.440
====== 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 -1.490 -0.216 0.214 - - - 9.74e-04 -1.17e-04 1.16e-04 52.750 57
CPL -1.464 -1.616 0.705 996.490 -996.490 -996.490 1.01e-03 -1.46e-04 8.55e-05 52.780 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 -0.943 -0.180 0.184 - - - 2.22e-02 -2.26e-03 2.26e-03 42.080 57
CPL -0.813 -0.297 0.659 528.675 -528.675 -528.675 2.54e-02 -5.27e-03 2.25e-02 42.100 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 2.39e-07 4.42e-07 6.30e-07 1.89e-06 1.80e-06 3.20e-06 erg/cm2
90%_error_low -4.82e-08 -5.49e-08 -9.95e-08 -5.78e-07 -2.36e-07 -6.64e-07 erg/cm2
90%_error_hi 5.09e-08 5.43e-08 9.84e-08 7.32e-07 2.39e-07 7.89e-07 erg/cm2
Peak flux PL 5.37e-01 7.54e-01 7.85e-01 1.50e+00 2.55e+00 3.58e+00 ph/cm2/s
90%_error_low -1.10e-01 -9.68e-02 -8.80e-02 -3.41e-01 -2.62e-01 -4.10e-01 ph/cm2/s
90%_error_hi 1.18e-01 9.52e-02 8.70e-02 4.02e-01 2.62e-01 4.30e-01 ph/cm2/s
Fluence CPL 2.40e-07 4.40e-07 6.25e-07 1.94e-06 1.80e-06 3.19e-06 erg/cm2
90%_error_low -5.05e-08 -5.45e-08 -1.17e-07 -1.28e-06 -2.55e-07 -1.23e-06 erg/cm2
90%_error_hi 5.07e-08 5.74e-08 1.24e-07 2.53e-08 2.40e-07 3.87e-07 erg/cm2
Peak flux CPL 5.41e-01 7.56e-01 7.89e-01 1.48e+00 2.55e+00 3.55e+00 ph/cm2/s
90%_error_low -1.52e-01 -9.77e-02 -9.24e-02 -7.75e-01 -2.73e-01 -8.30e-01 ph/cm2/s
90%_error_hi 8.55e-02 1.04e-01 1.13e-01 2.43e-01 2.67e-01 4.17e-01 ph/cm2/s
======================================================================
Special notes of this burst