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.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Sun Jan 12 01:19:52 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger558271
======================================================================
Trigger: 00558271 Segment: 000
BAT Trigger Time: 392982296 [s; MET]
Trigger Stop: 392982360 [s; MET]
UTC: 2013-06-15T09:44:45.323280 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 274.845688282276 Dec: -68.1660059730103 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7
Analysis Position: [ source = BAT ]
RA: 274.845688282276 Dec: -68.1660059730103 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 274.965997488142 Dec: -68.161737114086 [deg; J2000]
{ 18h 19m 51.8s , -68d 09' 42.3" }
+/- 2.93479257968317 [arcmin] (estimated 90% radius based on SNR)
+/- 1.78163300852858 [arcmin] (formal 1-sigma fit error)
SNR: 6.5335714988501
Angular difference between the analysis and refined position is 2.697153 arcmin
Partial Coding Fraction: 0.6015625 [ including projection effects ]
Duration
T90: 332.555999934673 +/- 28.5450627551655
Measured from: 32.7400000095367
to: 365.29599994421 [s; relative to TRIGTIME]
T50: 73.5319999456406 +/- 112.530690988043
Measured from: 72.3320000171661
to: 145.863999962807 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 31.8439999818802
to: 32.8439999818802 [s; relative to TRIGTIME]
Total Fluence
Measured from: 25.5720000267029
to: 386.864000022411 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.640087 1.858918 0.763030 0.202395
0.133598 0.128890 0.108756 0.093912 [error]
Peak 0.018953 0.047958 0.007893 0.006940
0.009781 0.009428 0.007746 0.006369 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 361.292 25.572 386.864
T90 332.556 32.740 365.296
T50 73.532 72.332 145.864
Peak 1.000 31.844 32.844
====== 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 -2.091 -0.160 0.154 - - - 6.84e-04 -7.53e-05 7.43e-05 70.310 57
CPL -0.718 -0.823 1.034 35.484 -7.278 6.606 4.70e-03 -4.70e-03 1.61e-02 61.080 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 -2.044 -0.622 0.541 - - - 4.81e-03 -1.94e-03 1.86e-03 52.590 57
CPL 2.051 -4.347 -2.051 34.371 -10.210 177.578 1.92e+00 -1.92e+00 4.66e+05 50.310 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 5.51e-07 7.08e-07 6.65e-07 1.10e-06 2.29e-06 3.02e-06 erg/cm2
90%_error_low -6.39e-08 -6.11e-08 -9.77e-08 -2.86e-07 -2.29e-07 -4.11e-07 erg/cm2
90%_error_hi 6.51e-08 6.11e-08 1.00e-07 3.47e-07 2.33e-07 4.56e-07 erg/cm2
Peak flux PL 3.35e-01 2.45e-01 1.19e-01 8.15e-02 7.37e-01 7.79e-01 ph/cm2/s
90%_error_low -1.44e-01 -7.99e-02 -5.79e-02 -8.15e-02 -2.42e-01 -2.55e-01 ph/cm2/s
90%_error_hi 1.56e-01 7.99e-02 6.09e-02 1.00e-01 2.42e-01 2.55e-01 ph/cm2/s
Fluence CPL 5.09e-07 8.20e-07 5.60e-07 1.32e-07 2.00e-06 2.02e-06 erg/cm2
90%_error_low -7.16e-08 -8.84e-08 -1.48e-07 -9.67e-08 -2.43e-07 -2.62e-07 erg/cm2
90%_error_hi 7.16e-08 9.07e-08 1.37e-07 2.82e-07 2.69e-07 3.76e-07 erg/cm2
Peak flux CPL 2.42e-01 3.66e-01 3.58e-02 3.04e-05 6.43e-01 6.45e-01 ph/cm2/s
90%_error_low -1.52e-01 -1.50e-01 -3.58e-02 -3.04e-05 -2.34e-01 -2.36e-01 ph/cm2/s
90%_error_hi 1.94e-01 1.35e-01 1.26e-01 1.07e-01 2.62e-01 2.60e-01 ph/cm2/s
======================================================================