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: Thu Sep 11 13:40:03 EDT 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger295527
======================================================================
Trigger: 00295527 Segment: 000
BAT Trigger Time: 215286064 [s; MET]
Trigger Stop: 215286128 [s; MET]
UTC: 2007-10-28T17:41:01.676940 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 119.846989722008 Dec: 21.4977976788415 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.74
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 8.74
Analysis Position: [ source = BAT ]
RA: 119.846989722008 Dec: 21.4977976788415 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 119.826257143885 Dec: 21.4700100994003 [deg; J2000]
{ 07h 59m 18.3s , +21d 28' 12.0" }
+/- 2.12272880669816 [arcmin] (estimated 90% radius based on SNR)
+/- 0.826427987752839 [arcmin] (formal 1-sigma fit error)
SNR: 10.3782999346458
Angular difference between the analysis and refined position is 2.029681 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 26.8560000061989 +/- 5.42508909639097
Measured from: 20.16400000453
to: 47.0200000107288 [s; relative to TRIGTIME]
T50: 15.2919999957085 +/- 5.75422487826452
Measured from: 26.5160000026226
to: 41.8079999983311 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 41.7520000040531
to: 42.7520000040531 [s; relative to TRIGTIME]
Total Fluence
Measured from: 19.2400000095367
to: 48.8840000033379 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.191844 0.233980 0.108260 0.005315
0.025693 0.026927 0.024069 0.022249 [error]
Peak 0.019752 0.013557 0.004231 0.005377
0.004640 0.004814 0.004343 0.004063 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 29.644 19.240 48.884
T90 26.856 20.164 47.020
T50 15.292 26.516 41.808
Peak 1.000 41.752 42.752
====== 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 -1.789 -0.254 0.240 - - - 1.10e-03 -1.86e-04 1.81e-04 47.640 57
CPL -0.736 -1.121 1.570 49.029 -12.302 -49.029 4.55e-03 -4.55e-03 3.44e-02 45.150 56
=== 1-s peak 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 -2.261 -1.040 0.742 - - - 1.68e-03 -1.05e-03 1.04e-03 61.350 57
CPL -1.985 -0.021 2.575 2.140 N/A N/A 2.46e-03 N/A N/A 61.440 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 5.46e-08 8.42e-08 9.74e-08 2.17e-07 3.00e-07 4.53e-07 erg/cm2
90%_error_low -1.04e-08 -1.16e-08 -2.18e-08 -8.29e-08 -5.09e-08 -1.09e-07 erg/cm2
90%_error_hi 1.06e-08 1.16e-08 2.24e-08 1.12e-07 5.25e-08 1.33e-07 erg/cm2
Peak flux PL 1.45e-01 9.33e-02 3.89e-02 2.21e-02 2.88e-01 2.99e-01 ph/cm2/s
90%_error_low -6.34e-02 -4.19e-02 -2.79e-02 -2.21e-02 -1.07e-01 -1.14e-01 ph/cm2/s
90%_error_hi 6.43e-02 3.78e-02 3.54e-02 5.40e-02 1.07e-01 1.19e-01 ph/cm2/s
Fluence CPL 5.05e-08 9.55e-08 9.09e-08 4.13e-08 2.66e-07 2.78e-07 erg/cm2
90%_error_low -1.20e-08 -1.67e-08 -2.96e-08 N/A -5.44e-08 -6.57e-08 erg/cm2
90%_error_hi 1.18e-08 1.77e-08 2.66e-08 N/A 6.28e-08 2.09e-07 erg/cm2
Peak flux CPL 1.42e-01 8.50e-02 3.38e-02 2.13e-02 2.71e-01 2.94e-01 ph/cm2/s
90%_error_low -7.28e-02 -8.50e-02 -3.38e-02 N/A N/A N/A ph/cm2/s
90%_error_hi 6.62e-02 5.79e-02 3.28e-02 N/A N/A N/A ph/cm2/s
======================================================================
Special notes of this burst