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 20:38:06 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger151905
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Trigger: 00151905 Segment: 000
BAT Trigger Time: 146617936 [s; MET]
Trigger Stop: 146618000 [s; MET]
UTC: 2005-08-24T23:12:16.307660 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 12.2370524365621 Dec: 22.592045480018 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.76
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 8.76
Analysis Position: [ source = BAT ]
RA: 12.2370524365621 Dec: 22.592045480018 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 12.2653228188403 Dec: 22.5985296617261 [deg; J2000]
{ 00h 49m 03.7s , +22d 35' 54.7" }
+/- 1.96949307934943 [arcmin] (estimated 90% radius based on SNR)
+/- 1.05836823392072 [arcmin] (formal 1-sigma fit error)
SNR: 11.5507985557348
Angular difference between the analysis and refined position is 1.613627 arcmin
Partial Coding Fraction: 0.75 [ including projection effects ]
Duration
T90: 25.0079999566078 +/- 5.55366545321555
Measured from: 38.4880000054836
to: 63.4959999620914 [s; relative to TRIGTIME]
T50: 11.9199999570847 +/- 3.72841197195518
Measured from: 44.1200000047684
to: 56.039999961853 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 53.1319999992847
to: 54.1319999992847 [s; relative to TRIGTIME]
Total Fluence
Measured from: 37.3840000033379
to: 64.5360000133514 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.335506 0.198524 0.067381 0.007278
0.030180 0.031668 0.028922 0.028556 [error]
Peak 0.021931 0.016105 0.013275 0.001563
0.005840 0.006210 0.005452 0.005668 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 27.152 37.384 64.536
T90 25.008 38.488 63.496
T50 11.920 44.120 56.040
Peak 1.000 53.132 54.132
====== 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 -2.793 -0.392 0.338 - - - 9.31e-04 -2.70e-04 2.80e-04 48.030 57
CPL -1.000 N/A N/A 80.000 N/A N/A 2.89e-03 N/A N/A 91.000 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 -1.778 -0.613 0.559 - - - 3.53e-03 -1.34e-03 1.27e-03 54.990 57
CPL -1.528 -0.741 4.167 76.233 N/A N/A 4.98e-03 N/A N/A 54.960 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 1.11e-07 9.36e-08 5.40e-08 4.64e-08 2.78e-07 3.05e-07 erg/cm2
90%_error_low -1.76e-08 -1.79e-08 -1.98e-08 -2.55e-08 -4.98e-08 -6.34e-08 erg/cm2
90%_error_hi 1.76e-08 1.71e-08 2.33e-08 4.29e-08 5.33e-08 7.69e-08 erg/cm2
Peak flux PL 1.90e-01 1.62e-01 9.45e-02 8.23e-02 4.82e-01 5.28e-01 ph/cm2/s
90%_error_low -8.30e-02 -5.02e-02 -4.44e-02 -5.59e-02 -1.49e-01 -1.67e-01 ph/cm2/s
90%_error_hi 8.92e-02 5.02e-02 4.62e-02 1.04e-01 1.49e-01 1.71e-01 ph/cm2/s
Fluence CPL 1.09e-07 1.10e-07 N/A 7.97e-09 2.56e-07 2.59e-07 erg/cm2
90%_error_low -1.76e-08 -1.68e-08 -1.98e-08 N/A -4.50e-08 N/A erg/cm2
90%_error_hi 1.70e-08 1.38e-08 2.33e-08 N/A 5.60e-08 N/A erg/cm2
Peak flux CPL 1.87e-01 1.67e-01 9.36e-02 5.42e-02 4.77e-01 5.02e-01 ph/cm2/s
90%_error_low -8.92e-02 N/A -9.36e-02 -5.42e-02 -1.54e-01 -1.77e-01 ph/cm2/s
90%_error_hi 9.16e-02 N/A 4.83e-02 8.44e-02 1.51e-01 1.89e-01 ph/cm2/s
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