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 22:29:40 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger544027
======================================================================
Trigger: 00544027 Segment: 000
BAT Trigger Time: 378241793.92 [s; MET]
Trigger Stop: 378241794.944 [s; MET]
UTC: 2012-12-26T19:09:43.890520 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 168.657836545913 Dec: -30.4144824746842 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.23
Image Trigger?: NO
Rate S/N Ratio: 15.6843871413581 [ if not an image trigger ]
Image S/N Ratio: 7.23
Analysis Position: [ source = BAT ]
RA: 168.657836545913 Dec: -30.4144824746842 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 168.619872955185 Dec: -30.4129687748913 [deg; J2000]
{ 11h 14m 28.8s , -30d 24' 46.7" }
+/- 1.96270273044716 [arcmin] (estimated 90% radius based on SNR)
+/- 1.13694808261099 [arcmin] (formal 1-sigma fit error)
SNR: 11.6079297327899
Angular difference between the analysis and refined position is 1.966469 arcmin
Partial Coding Fraction: 0.359375 [ including projection effects ]
Duration
T90: 1.01199996471405 +/- 0.203214155154292
Measured from: -0.304000020027161
to: 0.70799994468689 [s; relative to TRIGTIME]
T50: 0.507999897003174 +/- 0.139713955893594
Measured from: 0.00400000810623169
to: 0.511999905109406 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.208000004291534
to: 0.791999995708466 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.364000022411346
to: 0.796000003814697 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.073028 0.065378 0.060557 0.038983
0.010370 0.011505 0.010324 0.008311 [error]
Peak 0.066487 0.057161 0.053113 0.039717
0.009728 0.010711 0.009760 0.007704 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 1.160 -0.364 0.796
T90 1.012 -0.304 0.708
T50 0.508 0.004 0.512
Peak 1.000 -0.208 0.792
====== 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 -1.504 -0.290 0.289 - - - 1.29e-02 -2.05e-03 2.04e-03 67.390 57
CPL -1.518 -0.275 0.309 9999.360 -9999.360 -9999.360 1.29e-02 -2.04e-03 8.72e-03 67.410 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 -1.469 -0.305 0.307 - - - 1.35e-02 -2.23e-03 2.22e-03 56.840 57
CPL -1.484 -0.290 0.512 9999.360 -9999.360 -9999.360 1.34e-02 -2.14e-03 9.64e-03 56.870 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 1.92e-08 3.52e-08 4.96e-08 1.47e-07 1.42e-07 2.51e-07 erg/cm2
90%_error_low -5.35e-09 -6.12e-09 -1.02e-08 -5.67e-08 -2.43e-08 -6.56e-08 erg/cm2
90%_error_hi 5.72e-09 5.96e-09 9.93e-09 7.68e-08 2.44e-08 8.10e-08 erg/cm2
Peak flux PL 5.38e-01 5.51e-01 3.98e-01 4.60e-01 1.67e+00 1.95e+00 ph/cm2/s
90%_error_low -1.61e-01 -1.05e-01 -8.21e-02 -1.74e-01 -2.88e-01 -3.21e-01 ph/cm2/s
90%_error_hi 1.75e-01 1.02e-01 7.95e-02 2.28e-01 2.89e-01 3.23e-01 ph/cm2/s
Fluence CPL 1.70e-08 2.38e-08 2.59e-08 6.42e-08 8.38e-08 1.31e-07 erg/cm2
90%_error_low -1.14e-08 -1.11e-08 -1.16e-08 -1.20e-08 -3.80e-08 -4.85e-08 erg/cm2
90%_error_hi 1.26e-09 7.36e-09 6.30e-09 8.72e-09 2.18e-08 2.38e-08 erg/cm2
Peak flux CPL 4.30e-01 2.60e-01 1.05e-01 7.86e-02 8.26e-01 8.54e-01 ph/cm2/s
90%_error_low -2.26e-01 -1.45e-01 -6.15e-02 -7.86e-02 -4.39e-01 -4.58e-01 ph/cm2/s
90%_error_hi 2.22e-01 2.32e-01 7.98e-02 7.94e-02 6.73e-01 1.45e+00 ph/cm2/s
======================================================================
Special notes of this burst