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: Sun Aug 30 18:17:40 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger650530
======================================================================
Trigger: 00650530 Segment: 000
BAT Trigger Time: 459716537.344 [s; MET]
Trigger Stop: 459716538.368 [s; MET]
UTC: 2015-07-27T19:02:02.432140 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 203.990397249456 Dec: -18.354840842608 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.59
Image Trigger?: NO
Rate S/N Ratio: 14.8996644257513 [ if not an image trigger ]
Image S/N Ratio: 7.59
Analysis Position: [ source = BAT ]
RA: 203.990397249456 Dec: -18.354840842608 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 203.966310961544 Dec: -18.3208239248367 [deg; J2000]
{ 13h 35m 51.9s , -18d 19' 15.0" }
+/- 0.979770221175017 [arcmin] (estimated 90% radius based on SNR)
+/- 0.308361758198623 [arcmin] (formal 1-sigma fit error)
SNR: 31.318290164578
Angular difference between the analysis and refined position is 2.459176 arcmin
Partial Coding Fraction: 0.6875 [ including projection effects ]
Duration
T90: 87.9559999704361 +/- 10.9851456403465
Measured from: -4.51999998092651
to: 83.4359999895096 [s; relative to TRIGTIME]
T50: 30.3159999251366 +/- 3.71548979418876
Measured from: 5.44800001382828
to: 35.7639999389648 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 9.21200001239777
to: 10.2120000123978 [s; relative to TRIGTIME]
Total Fluence
Measured from: -8.69599997997284
to: 95.944000005722 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.015512 1.787152 1.820639 0.450057
0.064295 0.066500 0.062745 0.062563 [error]
Peak 0.026356 0.044616 0.054481 0.020034
0.007161 0.007554 0.007220 0.006885 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 104.640 -8.696 95.944
T90 87.956 -4.520 83.436
T50 30.316 5.448 35.764
Peak 1.000 9.212 10.212
====== 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 -1.132 -0.075 0.075 - - - 3.34e-03 -1.34e-04 1.34e-04 71.040 57
CPL -0.777 -0.296 0.318 194.566 -65.653 572.498 4.80e-03 -1.23e-03 1.78e-03 66.790 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 -0.983 -0.309 0.326 - - - 9.00e-03 -1.53e-03 1.52e-03 54.720 57
CPL -0.989 -0.299 0.405 9999.330 -9999.330 -9999.330 9.06e-03 -1.51e-03 1.63e-02 54.720 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 3.16e-07 7.28e-07 1.33e-06 5.78e-06 3.61e-06 8.15e-06 erg/cm2
90%_error_low -2.60e-08 -3.52e-08 -6.25e-08 -6.15e-07 -1.60e-07 -6.49e-07 erg/cm2
90%_error_hi 2.68e-08 3.50e-08 6.23e-08 6.67e-07 1.60e-07 6.95e-07 erg/cm2
Peak flux PL 2.26e-01 3.10e-01 3.14e-01 5.77e-01 1.04e+00 1.43e+00 ph/cm2/s
90%_error_low -7.81e-02 -6.92e-02 -5.71e-02 -2.06e-01 -1.78e-01 -2.56e-01 ph/cm2/s
90%_error_hi 8.93e-02 6.70e-02 5.60e-02 2.76e-01 1.79e-01 2.74e-01 ph/cm2/s
Fluence CPL 2.89e-07 7.43e-07 1.37e-06 3.62e-06 3.53e-06 6.02e-06 erg/cm2
90%_error_low -3.35e-08 -3.80e-08 -7.18e-08 -1.10e-06 -1.76e-07 -1.10e-06 erg/cm2
90%_error_hi 3.43e-08 3.83e-08 7.27e-08 1.70e-06 1.76e-07 1.69e-06 erg/cm2
Peak flux CPL 2.31e-01 3.11e-01 3.13e-01 5.98e-01 1.04e+00 1.43e+00 ph/cm2/s
90%_error_low -1.02e-01 -7.00e-02 -5.60e-02 N/A -1.90e-01 -4.21e-01 ph/cm2/s
90%_error_hi 8.43e-02 6.74e-02 6.75e-02 N/A 1.80e-01 2.50e-01 ph/cm2/s
======================================================================
Special notes of this burst