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 18:38:45 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger421386
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Trigger: 00421386 Segment: 000
BAT Trigger Time: 295003248 [s; MET]
Trigger Stop: 295003312 [s; MET]
UTC: 2010-05-08T09:20:42.221700 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 76.2500038130658 Dec: -20.7209133097938 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.47
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.47
Analysis Position: [ source = BAT ]
RA: 76.2500038130658 Dec: -20.7209133097938 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 76.2623306053277 Dec: -20.7385461703544 [deg; J2000]
{ 05h 05m 03.0s , -20d 44' 18.8" }
+/- 2.05586667055115 [arcmin] (estimated 90% radius based on SNR)
+/- 1.18039143244673 [arcmin] (formal 1-sigma fit error)
SNR: 10.8638245466385
Angular difference between the analysis and refined position is 1.264037 arcmin
Partial Coding Fraction: 0.703125 [ including projection effects ]
Duration
T90: 49.2599999308586 +/- 7.42963064686218
Measured from: 3.53200000524521
to: 52.7919999361038 [s; relative to TRIGTIME]
T50: 21.7879999876022 +/- 10.8364505686661
Measured from: 8.43599998950958
to: 30.2239999771118 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 30.6000000238419
to: 31.6000000238419 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.53200000524521
to: 58.3759999871254 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.155092 0.411623 0.352586 0.162341
0.049021 0.050998 0.046172 0.042644 [error]
Peak 0.012240 0.017449 0.024116 0.004880
0.006168 0.006458 0.005995 0.005533 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 59.908 -1.532 58.376
T90 49.260 3.532 52.792
T50 21.788 8.436 30.224
Peak 1.000 30.600 31.600
====== 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 -1.218 -0.235 0.241 - - - 1.24e-03 -1.68e-04 1.68e-04 35.610 57
CPL -0.889 -0.535 1.091 179.998 -179.998 -179.998 1.78e-03 -6.91e-04 3.94e-03 35.230 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 -1.111 -0.562 0.605 - - - 4.05e-03 -1.28e-03 1.27e-03 64.030 57
CPL -0.795 0.795 3.031 224.527 -224.527 -224.527 5.55e-03 -2.70e-03 7.78e-02 63.960 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 7.29e-08 1.59e-07 2.74e-07 1.09e-06 7.50e-07 1.59e-06 erg/cm2
90%_error_low -1.83e-08 -2.53e-08 -4.38e-08 -3.42e-07 -1.10e-07 -3.75e-07 erg/cm2
90%_error_hi 1.98e-08 2.47e-08 4.33e-08 4.42e-07 1.11e-07 4.59e-07 erg/cm2
Peak flux PL 1.15e-01 1.46e-01 1.35e-01 2.19e-01 4.70e-01 6.15e-01 ph/cm2/s
90%_error_low -6.53e-02 -5.87e-02 -4.70e-02 -1.28e-01 -1.53e-01 -1.97e-01 ph/cm2/s
90%_error_hi 8.26e-02 5.62e-02 4.56e-02 2.12e-01 1.55e-01 2.09e-01 ph/cm2/s
Fluence CPL 6.82e-08 1.64e-07 2.82e-07 6.80e-07 7.34e-07 1.19e-06 erg/cm2
90%_error_low -2.21e-08 -2.81e-08 -4.86e-08 -4.69e-07 -1.22e-07 -4.83e-07 erg/cm2
90%_error_hi 2.04e-08 2.97e-08 5.04e-08 8.67e-07 1.19e-07 4.88e-07 erg/cm2
Peak flux CPL 1.05e-01 1.48e-01 1.40e-01 1.63e-01 4.63e-01 5.59e-01 ph/cm2/s
90%_error_low -8.16e-02 -6.24e-02 -5.17e-02 -1.63e-01 -1.60e-01 -2.38e-01 ph/cm2/s
90%_error_hi 9.05e-02 6.22e-02 5.96e-02 2.56e-01 1.56e-01 2.57e-01 ph/cm2/s
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