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: Mon Jan 13 06:28:12 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger515375
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Trigger: 00515375 Segment: 000
BAT Trigger Time: 351354616 [s; MET]
Trigger Stop: 351354680 [s; MET]
UTC: 2012-02-19T14:30:08.092340 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 129.792968291079 Dec: 51.0246599454996 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.92
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 8.92
Analysis Position: [ source = BAT ]
RA: 129.792968291079 Dec: 51.0246599454996 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 129.843235607354 Dec: 51.0154664710579 [deg; J2000]
{ 08h 39m 22.4s , +51d 00' 55.7" }
+/- 2.12731942031514 [arcmin] (estimated 90% radius based on SNR)
+/- 1.09657339834554 [arcmin] (formal 1-sigma fit error)
SNR: 10.3463209065604
Angular difference between the analysis and refined position is 1.975796 arcmin
Partial Coding Fraction: 0.7734375 [ including projection effects ]
Duration
T90: 92.5279999375343 +/- 10.9226570392907
Measured from: -8.73600000143051
to: 83.7919999361038 [s; relative to TRIGTIME]
T50: 61.3719999790192 +/- 10.5487432507463
Measured from: 0.279999971389771
to: 61.6519999504089 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -2.2960000038147
to: -1.2960000038147 [s; relative to TRIGTIME]
Total Fluence
Measured from: -11.3640000224113
to: 86.8240000009537 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.329122 0.510367 0.240020 0.114542
0.051406 0.053038 0.047322 0.042140 [error]
Peak 0.007589 0.016182 0.013503 0.007804
0.005262 0.005531 0.004793 0.004297 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 98.188 -11.364 86.824
T90 92.528 -8.736 83.792
T50 61.372 0.280 61.652
Peak 1.000 -2.296 -1.296
====== 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 -1.544 -0.224 0.219 - - - 7.38e-04 -1.07e-04 1.06e-04 67.310 57
CPL 0.389 -1.264 1.940 53.526 -9.698 24.659 8.80e-03 -8.80e-03 9.90e-02 59.490 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 -1.379 -0.652 0.644 - - - 2.59e-03 -1.04e-03 1.03e-03 44.280 57
CPL 1.205 -2.691 -1.205 58.951 -19.523 9675.439 5.22e-02 -5.22e-02 3.15e+03 41.970 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 9.65e-08 1.73e-07 2.37e-07 6.73e-07 6.83e-07 1.18e-06 erg/cm2
90%_error_low -1.94e-08 -2.36e-08 -4.43e-08 -2.24e-07 -1.07e-07 -2.72e-07 erg/cm2
90%_error_hi 2.02e-08 2.36e-08 4.46e-08 2.90e-07 1.09e-07 3.26e-07 erg/cm2
Peak flux PL 9.48e-02 1.03e-01 7.88e-02 9.91e-02 3.14e-01 3.75e-01 ph/cm2/s
90%_error_low -5.45e-02 -4.37e-02 -3.75e-02 -9.91e-02 -1.25e-01 -1.51e-01 ph/cm2/s
90%_error_hi 6.51e-02 4.29e-02 3.75e-02 1.24e-01 1.25e-01 1.57e-01 ph/cm2/s
Fluence CPL 7.84e-08 2.14e-07 2.22e-07 6.04e-08 5.65e-07 5.75e-07 erg/cm2
90%_error_low -2.38e-08 -3.55e-08 -6.56e-08 N/A -1.09e-07 -1.18e-07 erg/cm2
90%_error_hi 2.39e-08 3.77e-08 5.88e-08 N/A 1.26e-07 2.09e-07 erg/cm2
Peak flux CPL 4.46e-02 1.36e-01 8.44e-02 4.77e-03 2.70e-01 2.70e-01 ph/cm2/s
90%_error_low -4.46e-02 -6.28e-02 -8.44e-02 -4.77e-03 -1.19e-01 -1.19e-01 ph/cm2/s
90%_error_hi 8.28e-02 6.95e-02 5.27e-02 1.08e-01 1.35e-01 1.42e-01 ph/cm2/s
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