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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Wed Jan 22 21:46:50 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger145581
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Trigger: 00145581 Segment: 000
BAT Trigger Time: 142869627.136 [s; MET]
Trigger Stop: 142869654.016 [s; MET]
UTC: 2005-07-12T14:00:27.517820 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 77.6928992397336 Dec: 64.898850024641 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.89
Image Trigger?: NO
Rate S/N Ratio: 11.7898261225516 [ if not an image trigger ]
Image S/N Ratio: 8.89
Analysis Position: [ source = BAT ]
RA: 77.6928992397336 Dec: 64.898850024641 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 77.7221924188025 Dec: 64.9273059944435 [deg; J2000]
{ 05h 10m 53.3s , +64d 55' 38.3" }
+/- 1.69697651428425 [arcmin] (estimated 90% radius based on SNR)
+/- 0.74800414987494 [arcmin] (formal 1-sigma fit error)
SNR: 14.2892702092692
Angular difference between the analysis and refined position is 1.862902 arcmin
Partial Coding Fraction: 0.46875 [ including projection effects ]
Duration
T90: 51.3560000061989 +/- 7.86838358834463
Measured from: -12.9839999973774
to: 38.3720000088215 [s; relative to TRIGTIME]
T50: 26.9280000030994 +/- 6.96220945189602
Measured from: -1.95600000023842
to: 24.972000002861 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 17.3879999816418
to: 18.3879999816418 [s; relative to TRIGTIME]
Total Fluence
Measured from: -20.444000005722
to: 40.1239999830723 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.403036 0.634953 0.475121 0.119167
0.052820 0.055280 0.049318 0.043393 [error]
Peak 0.022065 0.026576 0.011826 0.010359
0.006927 0.006970 0.006228 0.005321 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 60.568 -20.444 40.124
T90 51.356 -12.984 38.372
T50 26.928 -1.956 24.972
Peak 1.000 17.388 18.388
====== 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 -1.496 -0.177 0.176 - - - 1.90e-03 -1.90e-04 1.89e-04 57.800 57
CPL -1.448 -1.298 0.579 584.950 -584.950 -584.950 2.00e-03 N/A N/A 57.840 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 -2.001 -0.635 0.539 - - - 3.68e-03 -1.54e-03 1.48e-03 68.020 57
CPL -0.333 -1.795 0.333 37.997 N/A N/A 3.86e-02 N/A N/A 66.860 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 1.46e-07 2.69e-07 3.82e-07 1.14e-06 1.09e-06 1.94e-06 erg/cm2
90%_error_low -2.48e-08 -2.83e-08 -4.97e-08 -2.91e-07 -1.19e-07 -3.33e-07 erg/cm2
90%_error_hi 2.59e-08 2.80e-08 4.92e-08 3.53e-07 1.20e-07 3.83e-07 erg/cm2
Peak flux PL 2.46e-01 1.84e-01 9.19e-02 6.56e-02 5.52e-01 5.87e-01 ph/cm2/s
90%_error_low -5.71e-02 -6.06e-02 -2.63e-02 -6.56e-02 -1.81e-01 -1.94e-01 ph/cm2/s
90%_error_hi 1.11e-01 6.05e-02 4.95e-02 8.42e-02 1.81e-01 1.95e-01 ph/cm2/s
Fluence CPL 1.47e-07 2.69e-07 3.81e-07 1.17e-06 1.09e-06 1.93e-06 erg/cm2
90%_error_low -2.66e-08 -2.76e-08 -4.99e-08 -7.14e-07 -1.30e-07 -6.73e-07 erg/cm2
90%_error_hi 2.38e-08 3.35e-08 5.47e-08 1.65e-08 1.01e-07 2.00e-07 erg/cm2
Peak flux CPL 2.22e-01 2.24e-01 7.88e-02 7.48e-03 5.32e-01 5.33e-01 ph/cm2/s
90%_error_low -2.22e-01 -8.55e-02 -7.88e-02 -7.48e-03 -2.05e-01 -2.05e-01 ph/cm2/s
90%_error_hi 1.19e-01 1.17e-01 6.57e-02 8.40e-02 1.84e-01 2.02e-01 ph/cm2/s
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