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: Fri Jan 17 18:34:41 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger421814
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Trigger: 00421814 Segment: 000
BAT Trigger Time: 295409234.56 [s; MET]
Trigger Stop: 295409246.72 [s; MET]
UTC: 2010-05-13T02:07:08.767460 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 169.57995036142 Dec: 3.60539838785235 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 10.4
Image Trigger?: NO
Rate S/N Ratio: 10.8627804912002 [ if not an image trigger ]
Image S/N Ratio: 10.4
Analysis Position: [ source = BAT ]
RA: 169.57995036142 Dec: 3.60539838785235 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 169.600224047669 Dec: 3.61051874761748 [deg; J2000]
{ 11h 18m 24.1s , +03d 36' 37.9" }
+/- 1.41272831147476 [arcmin] (estimated 90% radius based on SNR)
+/- 0.598341943168445 [arcmin] (formal 1-sigma fit error)
SNR: 18.5673054459798
Angular difference between the analysis and refined position is 1.252280 arcmin
Partial Coding Fraction: 0.90625 [ including projection effects ]
Duration
T90: 83.4959999918938 +/- 21.628383198402
Measured from: -39.7760000228882
to: 43.7199999690056 [s; relative to TRIGTIME]
T50: 30.9839999079704 +/- 5.79226104674092
Measured from: -5.0799999833107
to: 25.9039999246597 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.08799999952316
to: 2.08799999952316 [s; relative to TRIGTIME]
Total Fluence
Measured from: -52.6399999856949
to: 52.3439999818802 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.697106 0.922721 0.573996 0.110267
0.056904 0.059199 0.052661 0.046913 [error]
Peak 0.013423 0.032317 0.019297 0.007468
0.005810 0.006253 0.005431 0.004681 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 104.984 -52.640 52.344
T90 83.496 -39.776 43.720
T50 30.984 -5.080 25.904
Peak 1.000 1.088 2.088
====== 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 -1.593 -0.135 0.134 - - - 1.45e-03 -1.15e-04 1.14e-04 48.190 57
CPL -1.524 -0.605 0.557 321.393 -321.393 -321.393 1.58e-03 -4.70e-04 1.52e-03 48.150 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 -1.286 -0.426 0.442 - - - 4.81e-03 -1.17e-03 1.16e-03 45.280 57
CPL -1.290 -0.421 0.452 9999.360 -9999.360 -9999.360 4.82e-03 -1.16e-03 3.84e-02 45.280 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 2.13e-07 3.69e-07 4.90e-07 1.33e-06 1.43e-06 2.40e-06 erg/cm2
90%_error_low -2.57e-08 -2.79e-08 -5.18e-08 -2.74e-07 -1.22e-07 -3.22e-07 erg/cm2
90%_error_hi 2.65e-08 2.78e-08 5.18e-08 3.21e-07 1.23e-07 3.59e-07 erg/cm2
Peak flux PL 1.61e-01 1.84e-01 1.51e-01 2.07e-01 5.72e-01 7.04e-01 ph/cm2/s
90%_error_low -6.80e-02 -5.18e-02 -4.44e-02 -1.03e-01 -1.41e-01 -1.76e-01 ph/cm2/s
90%_error_hi 7.62e-02 4.98e-02 4.33e-02 1.56e-01 1.42e-01 1.82e-01 ph/cm2/s
Fluence CPL 2.11e-07 3.72e-07 4.91e-07 1.18e-06 1.42e-06 2.25e-06 erg/cm2
90%_error_low -2.94e-08 -3.04e-08 -5.22e-08 -6.95e-07 -1.44e-07 -7.08e-07 erg/cm2
90%_error_hi 2.13e-08 3.63e-08 5.32e-08 2.05e-07 1.31e-07 2.47e-07 erg/cm2
Peak flux CPL 1.65e-01 1.84e-01 1.50e-01 2.06e-01 5.73e-01 7.12e-01 ph/cm2/s
90%_error_low -7.84e-02 -5.14e-02 -4.11e-02 N/A -1.43e-01 -2.53e-01 ph/cm2/s
90%_error_hi 5.80e-02 6.10e-02 4.90e-02 N/A 1.42e-01 1.61e-01 ph/cm2/s
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