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 19 12:52:28 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger375409
======================================================================
Trigger: 00375409 Segment: 000
BAT Trigger Time: 279496148.404 [s; MET]
Trigger Stop: 279496148.468 [s; MET]
UTC: 2009-11-09T21:49:03.157720 [includes UTCF correction]
Where From?: (*SHORT BURST*) TDRSS scaled map message
BAT
RA: 112.716715657691 Dec: -54.0804743571872 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.05
Image Trigger?: NO
Rate S/N Ratio: 27.7848879788996 [ if not an image trigger ]
Image S/N Ratio: 7.05
Analysis Position: [ source = BAT ]
RA: 112.716715657691 Dec: -54.0804743571872 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 112.74942082414 Dec: -54.091435916856 [deg; J2000]
{ 07h 30m 59.9s , -54d 05' 29.2" }
+/- 1.19029952048663 [arcmin] (estimated 90% radius based on SNR)
+/- 0.510577794860176 [arcmin] (formal 1-sigma fit error)
SNR: 23.7158126307739
Angular difference between the analysis and refined position is 1.325685 arcmin
Partial Coding Fraction: 0.7578125 [ including projection effects ]
Duration
T90: 0.271999955177307 +/- 0.0468187824917992
Measured from: 0.0120000243186951
to: 0.283999979496002 [s; relative to TRIGTIME]
T50: 0.0919999480247498 +/- 0.0282842442734789
Measured from: 0.100000023841858
to: 0.191999971866608 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.333999991416931
to: 0.666000008583069 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.00400000810623169
to: 0.332000017166138 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.032500 0.076578 0.096758 0.038768
0.004394 0.005715 0.006226 0.005627 [error]
Peak 0.039689 0.071589 0.098012 0.035561
0.006512 0.007582 0.007662 0.006861 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 0.336 -0.004 0.332
T90 0.272 0.012 0.284
T50 0.092 0.100 0.192
Peak 1.000 -0.334 0.666
====== 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 -0.710 -0.128 0.132 - - - 4.77e-02 -3.68e-03 3.65e-03 54.200 57
CPL -0.400 -0.437 0.589 310.465 -310.465 -310.465 6.47e-02 -1.95e-02 4.82e-02 53.200 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 -0.768 -0.167 0.175 - - - 1.65e-02 -1.63e-03 1.60e-03 64.590 57
CPL -0.761 -0.168 0.177 9999.310 -9999.310 -9999.310 1.66e-02 -1.53e-03 1.63e-02 64.590 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 9.82e-09 2.94e-08 7.19e-08 4.91e-07 1.95e-07 6.02e-07 erg/cm2
90%_error_low -1.54e-09 -2.85e-09 -5.56e-09 -8.33e-08 -1.55e-08 -8.62e-08 erg/cm2
90%_error_hi 1.63e-09 2.82e-09 5.54e-09 9.55e-08 1.55e-08 9.72e-08 erg/cm2
Peak flux PL 3.38e-01 5.28e-01 6.20e-01 1.41e+00 1.90e+00 2.89e+00 ph/cm2/s
90%_error_low -7.04e-02 -6.96e-02 -5.82e-02 -2.78e-01 -1.80e-01 -3.04e-01 ph/cm2/s
90%_error_hi 7.65e-02 6.86e-02 5.79e-02 3.24e-01 1.81e-01 3.21e-01 ph/cm2/s
Fluence CPL 9.03e-09 3.00e-08 7.47e-08 3.30e-07 1.93e-07 4.44e-07 erg/cm2
90%_error_low -1.98e-09 -3.04e-09 -7.17e-09 -1.54e-07 -1.63e-08 -1.52e-07 erg/cm2
90%_error_hi 1.98e-09 3.10e-09 7.29e-09 2.02e-07 1.61e-08 2.03e-07 erg/cm2
Peak flux CPL 3.38e-01 5.28e-01 6.20e-01 1.40e+00 1.90e+00 2.89e+00 ph/cm2/s
90%_error_low -4.87e-02 -6.24e-02 -5.82e-02 -6.75e-01 -1.86e-01 -7.08e-01 ph/cm2/s
90%_error_hi 7.63e-02 6.90e-02 6.07e-02 3.19e-01 1.80e-01 2.98e-01 ph/cm2/s
======================================================================
Special notes of this burst