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: Tue Jun 23 22:14:14 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger275119
======================================================================
Trigger: 00275119 Segment: 000
BAT Trigger Time: 198034025.28 [s; MET]
Trigger Stop: 198034025.792 [s; MET]
UTC: 2007-04-12T01:27:03.395620 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 181.505172705328 Dec: 40.1008001435465 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.32
Image Trigger?: NO
Rate S/N Ratio: 8.94427190999916 [ if not an image trigger ]
Image S/N Ratio: 7.32
Analysis Position: [ source = BAT ]
RA: 181.505172705328 Dec: 40.1008001435465 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 181.523400544306 Dec: 40.1474402138937 [deg; J2000]
{ 12h 06m 05.6s , +40d 08' 50.8" }
+/- 1.52925958471965 [arcmin] (estimated 90% radius based on SNR)
+/- 0.632155016314402 [arcmin] (formal 1-sigma fit error)
SNR: 16.5795902308619
Angular difference between the analysis and refined position is 2.920689 arcmin
Partial Coding Fraction: 0.984375 [ including projection effects ]
Duration
T90: 33.8760000169277 +/- 5.07696445672102
Measured from: -3.21999999880791
to: 30.6560000181198 [s; relative to TRIGTIME]
T50: 7.91200003027916 +/- 15.3215607602688
Measured from: 0.359999984502792
to: 8.27200001478195 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 5.31999999284744
to: 6.31999999284744 [s; relative to TRIGTIME]
Total Fluence
Measured from: -4.55200001597404
to: 31.1879999935627 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.215926 0.309423 0.223459 0.007192
0.027741 0.029851 0.028857 0.031731 [error]
Peak 0.017232 0.035541 0.029571 0.007499
0.004822 0.005309 0.005111 0.005537 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 35.740 -4.552 31.188
T90 33.876 -3.220 30.656
T50 7.912 0.360 8.272
Peak 1.000 5.320 6.320
====== 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 -1.407 -0.194 0.192 - - - 1.40e-03 -1.67e-04 1.66e-04 67.290 57
CPL -0.340 -0.871 1.077 69.928 -16.654 103.328 5.34e-03 -5.34e-03 1.48e-02 62.760 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 -1.350 -0.317 0.312 - - - 5.64e-03 -1.05e-03 1.04e-03 58.820 57
CPL -1.007 -1.511 1.378 135.411 -135.411 -135.411 8.61e-03 -3.95e-03 3.74e-02 58.550 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 5.85e-08 1.14e-07 1.72e-07 5.61e-07 4.82e-07 9.04e-07 erg/cm2
90%_error_low -1.01e-08 -1.29e-08 -2.71e-08 -1.64e-07 -6.54e-08 -1.91e-07 erg/cm2
90%_error_hi 1.05e-08 1.28e-08 2.73e-08 2.08e-07 6.71e-08 2.28e-07 erg/cm2
Peak flux PL 2.01e-01 2.21e-01 1.74e-01 2.24e-01 6.79e-01 8.20e-01 ph/cm2/s
90%_error_low -5.66e-02 -4.04e-02 -4.15e-02 -9.29e-02 -1.18e-01 -1.56e-01 ph/cm2/s
90%_error_hi 6.04e-02 4.00e-02 4.14e-02 1.29e-01 1.18e-01 1.65e-01 ph/cm2/s
Fluence CPL 5.16e-08 1.28e-07 1.70e-07 1.18e-07 4.24e-07 4.68e-07 erg/cm2
90%_error_low -1.21e-08 -1.74e-08 -3.28e-08 -7.88e-08 -7.21e-08 -1.07e-07 erg/cm2
90%_error_hi 1.21e-08 1.81e-08 3.14e-08 2.74e-07 7.94e-08 2.78e-07 erg/cm2
Peak flux CPL 1.92e-01 2.30e-01 1.76e-01 1.40e-01 6.68e-01 7.38e-01 ph/cm2/s
90%_error_low -6.54e-02 -4.67e-02 -4.37e-02 -1.40e-01 -1.24e-01 -1.76e-01 ph/cm2/s
90%_error_hi 6.31e-02 5.12e-02 4.51e-02 1.09e-01 1.22e-01 1.89e-01 ph/cm2/s
======================================================================
Special notes of this burst