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: Sat Jan 11 22:44:42 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger574935
======================================================================
Trigger: 00574935 Segment: 000
BAT Trigger Time: 403793280 [s; MET]
Trigger Stop: 403793344 [s; MET]
UTC: 2013-10-18T12:47:48.834540 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 98.4618116856018 Dec: -19.8820304441863 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 16.77
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 16.77
Analysis Position: [ source = BAT ]
RA: 98.4618116856018 Dec: -19.8820304441863 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 98.4685450877152 Dec: -19.8994638741002 [deg; J2000]
{ 06h 33m 52.5s , -19d 53' 58.1" }
+/- 1.27550544202634 [arcmin] (estimated 90% radius based on SNR)
+/- 0.552306285333286 [arcmin] (formal 1-sigma fit error)
SNR: 21.4854098701745
Angular difference between the analysis and refined position is 1.112858 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 73.2159999608994 +/- 18.9734095686505
Measured from: 24.8080000281334
to: 98.0239999890327 [s; relative to TRIGTIME]
T50: 31.2960000038147 +/- 5.21393821144733
Measured from: 39.3360000252724
to: 70.6320000290871 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 59.4120000004768
to: 60.4120000004768 [s; relative to TRIGTIME]
Total Fluence
Measured from: 21.0960000157356
to: 117.736000001431 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.989807 0.908741 0.358349 0.040430
0.049879 0.050775 0.043518 0.037216 [error]
Peak 0.023897 0.025402 0.011467 0.008017
0.005045 0.005297 0.004479 0.003797 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 96.640 21.096 117.736
T90 73.216 24.808 98.024
T50 31.296 39.336 70.632
Peak 1.000 59.412 60.412
====== 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 -2.245 -0.143 0.137 - - - 1.19e-03 -1.14e-04 1.12e-04 57.470 57
CPL -1.712 -0.286 0.668 20.756 -19.670 12.470 2.50e-03 -9.99e-04 3.86e-03 54.940 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 -1.836 -0.464 0.417 - - - 3.44e-03 -1.05e-03 1.00e-03 75.130 57
CPL -1.354 -0.843 2.453 55.126 N/A N/A 6.64e-03 N/A N/A 74.920 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 2.98e-07 3.49e-07 2.95e-07 4.21e-07 1.09e-06 1.36e-06 erg/cm2
90%_error_low -2.77e-08 -2.41e-08 -3.84e-08 -9.82e-08 -8.71e-08 -1.47e-07 erg/cm2
90%_error_hi 2.82e-08 2.41e-08 3.95e-08 1.18e-07 8.87e-08 1.61e-07 erg/cm2
Peak flux PL 1.96e-01 1.62e-01 9.05e-02 7.49e-02 4.81e-01 5.23e-01 ph/cm2/s
90%_error_low -6.44e-02 -3.90e-02 -3.45e-02 -4.33e-02 -1.16e-01 -1.30e-01 ph/cm2/s
90%_error_hi 6.75e-02 3.90e-02 3.55e-02 6.85e-02 1.16e-01 1.32e-01 ph/cm2/s
Fluence CPL 2.87e-07 3.69e-07 2.76e-07 1.54e-07 1.03e-06 1.09e-06 erg/cm2
90%_error_low -3.07e-08 -3.10e-08 -5.00e-08 -9.81e-08 -1.05e-07 -1.50e-07 erg/cm2
90%_error_hi 3.04e-08 3.26e-08 4.65e-08 2.10e-07 1.11e-07 2.48e-07 erg/cm2
Peak flux CPL 1.89e-01 1.72e-01 8.98e-02 3.69e-02 4.75e-01 4.88e-01 ph/cm2/s
90%_error_low -7.27e-02 N/A N/A -3.69e-02 -1.18e-01 -1.29e-01 ph/cm2/s
90%_error_hi 7.13e-02 N/A N/A 5.15e-02 1.18e-01 7.75e-02 ph/cm2/s
======================================================================
Special notes of this burst