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 Oct 4 23:02:09 EDT 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger598497
======================================================================
Trigger: 00598497 Segment: 000
BAT Trigger Time: 421294945.6 [s; MET]
Trigger Stop: 421294949.696 [s; MET]
UTC: 2014-05-09T02:22:13.613280 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 46.608358981037 Dec: -62.6535551180924 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.6
Image Trigger?: NO
Rate S/N Ratio: 10.1488915650922 [ if not an image trigger ]
Image S/N Ratio: 7.6
Analysis Position: [ source = BAT ]
RA: 46.608358981037 Dec: -62.6535551180924 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 46.5638255707873 Dec: -62.6615448529256 [deg; J2000]
{ 03h 06m 15.3s , -62d 39' 41.6" }
+/- 1.88996159479005 [arcmin] (estimated 90% radius based on SNR)
+/- 0.78407929161078 [arcmin] (formal 1-sigma fit error)
SNR: 12.2513952930359
Angular difference between the analysis and refined position is 1.317576 arcmin
Partial Coding Fraction: 0.1953125 [ including projection effects ]
Duration
T90: 23.216000020504 +/- 5.17115694874123
Measured from: -2.83200001716614
to: 20.3840000033379 [s; relative to TRIGTIME]
T50: 9.12000000476837 +/- 2.60171022872606
Measured from: 0.991999983787537
to: 10.1119999885559 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.77999997138977
to: 2.77999997138977 [s; relative to TRIGTIME]
Total Fluence
Measured from: -3.80800002813339
to: 23.055999994278 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.553100 0.667540 0.499155 0.195584
0.068511 0.072066 0.064539 0.056305 [error]
Peak 0.050710 0.051194 0.074086 0.016698
0.013950 0.015238 0.013428 0.011574 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 26.864 -3.808 23.056
T90 23.216 -2.832 20.384
T50 9.120 0.992 10.112
Peak 1.000 1.780 2.780
====== 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: 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 -1.585 -0.196 0.193 - - - 4.89e-03 -5.72e-04 5.68e-04 74.120 57
CPL -1.238 -0.388 0.885 107.727 -50.787 -107.727 7.39e-03 N/A N/A 73.510 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 -1.493 -0.384 0.389 - - - 1.24e-02 -2.93e-03 2.93e-03 60.320 57
CPL -0.689 -1.149 3.189 85.663 -39.453 -85.663 3.08e-02 -3.08e-02 6.70e-01 59.860 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 1.82e-07 3.17e-07 4.22e-07 1.15e-06 1.23e-06 2.07e-06 erg/cm2
90%_error_low -3.34e-08 -3.74e-08 -6.39e-08 -3.28e-07 -1.53e-07 -3.88e-07 erg/cm2
90%_error_hi 3.49e-08 3.71e-08 6.34e-08 4.04e-07 1.55e-07 4.47e-07 erg/cm2
Peak flux PL 5.09e-01 5.14e-01 3.65e-01 4.13e-01 1.55e+00 1.80e+00 ph/cm2/s
90%_error_low -1.99e-01 -1.38e-01 -1.01e-01 -1.91e-01 -3.85e-01 -4.23e-01 ph/cm2/s
90%_error_hi 2.22e-01 1.34e-01 9.85e-02 2.62e-01 3.87e-01 4.23e-01 ph/cm2/s
Fluence CPL 1.72e-07 3.30e-07 4.32e-07 6.81e-07 1.20e-06 1.62e-06 erg/cm2
90%_error_low -3.94e-08 -4.58e-08 -6.82e-08 -4.41e-07 -1.69e-07 -4.75e-07 erg/cm2
90%_error_hi 3.99e-08 4.80e-08 7.01e-08 5.76e-07 1.67e-07 6.21e-07 erg/cm2
Peak flux CPL 4.34e-01 5.53e-01 4.00e-01 2.01e-01 1.51e+00 1.59e+00 ph/cm2/s
90%_error_low N/A -1.54e-01 -1.24e-01 -2.01e-01 -4.19e-01 -4.81e-01 ph/cm2/s
90%_error_hi N/A 1.72e-01 1.41e-01 3.94e-01 4.01e-01 4.70e-01 ph/cm2/s
======================================================================
Special notes of this burst