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: Mon Mar 28 15:39:30 EDT 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger677495
======================================================================
Trigger: 00677495 Segment: 000
BAT Trigger Time: 478695297.984 [s; MET]
Trigger Stop: 478695298.24 [s; MET]
UTC: 2016-03-03T10:54:42.058240 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 168.681372288036 Dec: 22.7424795077935 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.2
Image Trigger?: NO
Rate S/N Ratio: 29.4108823397055 [ if not an image trigger ]
Image S/N Ratio: 8.2
Analysis Position: [ source = BAT ]
RA: 168.681372288036 Dec: 22.7424795077935 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 168.714337841967 Dec: 22.708156718444 [deg; J2000]
{ 11h 14m 51.4s , +22d 42' 29.4" }
+/- 2.01008996009481 [arcmin] (estimated 90% radius based on SNR)
+/- 1.05890206865951 [arcmin] (formal 1-sigma fit error)
SNR: 11.218980366806
Angular difference between the analysis and refined position is 2.751247 arcmin
Partial Coding Fraction: 0.9609375 [ including projection effects ]
Duration
T90: 4.97599995136261 +/- 1.00625245213938
Measured from: -0.0120000243186951
to: 4.96399992704391 [s; relative to TRIGTIME]
T50: 1.57199990749359 +/- 1.49214611727068
Measured from: 0.171999990940094
to: 1.74399989843369 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.0879999995231628
to: 0.912000000476837 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.0879999995231628
to: 5.31999999284744 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.040896 0.073038 0.058930 0.046892
0.011604 0.012297 0.010870 0.009448 [error]
Peak 0.018298 0.042181 0.046754 0.021379
0.005351 0.005763 0.005391 0.004693 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 5.408 -0.088 5.320
T90 4.976 -0.012 4.964
T50 1.572 0.172 1.744
Peak 1.000 -0.088 0.912
====== 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 -1.052 -0.322 0.346 - - - 2.57e-03 -4.38e-04 4.34e-04 54.490 57
CPL -1.065 -0.306 0.383 9999.360 -9999.360 -9999.360 2.59e-03 -4.35e-04 1.91e-03 54.520 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 -0.803 -0.238 0.254 - - - 8.25e-03 -1.17e-03 1.15e-03 43.860 57
CPL -0.506 -0.508 1.163 299.331 -299.331 -299.331 1.10e-02 N/A N/A 43.580 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 1.17e-08 2.83e-08 5.46e-08 2.59e-07 1.48e-07 3.53e-07 erg/cm2
90%_error_low -4.12e-09 -6.21e-09 -1.06e-08 -1.02e-07 -2.70e-08 -1.09e-07 erg/cm2
90%_error_hi 4.58e-09 5.88e-09 1.03e-08 1.48e-07 2.73e-08 1.49e-07 erg/cm2
Peak flux PL 1.75e-01 2.67e-01 3.06e-01 6.72e-01 9.48e-01 1.42e+00 ph/cm2/s
90%_error_low -5.08e-02 -5.02e-02 -4.16e-02 -1.84e-01 -1.30e-01 -2.10e-01 ph/cm2/s
90%_error_hi 5.71e-02 4.93e-02 4.14e-02 2.32e-01 1.30e-01 2.26e-01 ph/cm2/s
Fluence CPL 1.17e-08 2.80e-08 5.30e-08 2.65e-07 1.48e-07 3.45e-07 erg/cm2
90%_error_low N/A -5.87e-09 -8.99e-09 -1.68e-07 -2.75e-08 -1.41e-07 erg/cm2
90%_error_hi N/A 6.23e-09 1.20e-08 1.57e-07 2.68e-08 1.20e-07 erg/cm2
Peak flux CPL 1.60e-01 2.70e-01 3.17e-01 4.98e-01 9.36e-01 1.25e+00 ph/cm2/s
90%_error_low -6.52e-02 -5.23e-02 -4.98e-02 -2.91e-01 -1.36e-01 -3.32e-01 ph/cm2/s
90%_error_hi 6.78e-02 5.29e-02 5.45e-02 2.13e-01 1.33e-01 2.23e-01 ph/cm2/s
======================================================================
Special notes of this burst