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: Mon Jan 20 11:33:32 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger261132
======================================================================
Trigger: 00261132 Segment: 000
BAT Trigger Time: 193540217.92 [s; MET]
Trigger Stop: 193540219.968 [s; MET]
UTC: 2007-02-19T01:10:16.146540 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 260.198428896005 Dec: 69.3642687369038 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.61
Image Trigger?: NO
Rate S/N Ratio: 14.5945195193264 [ if not an image trigger ]
Image S/N Ratio: 7.61
Analysis Position: [ source = BAT ]
RA: 260.198428896005 Dec: 69.3642687369038 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 260.198339226429 Dec: 69.3540229151982 [deg; J2000]
{ 17h 20m 47.6s , +69d 21' 14.5" }
+/- 1.97146163235189 [arcmin] (estimated 90% radius based on SNR)
+/- 0.916287772057375 [arcmin] (formal 1-sigma fit error)
SNR: 11.5343252863869
Angular difference between the analysis and refined position is 0.614752 arcmin
Partial Coding Fraction: 0.921875 [ including projection effects ]
Duration
T90: 18 +/- 4.47213595499958
Measured from: -1.91999998688698
to: 16.080000013113 [s; relative to TRIGTIME]
T50: 8 +/- 2.23606797749979
Measured from: 1.08000001311302
to: 9.08000001311302 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.08000001311302
to: 2.08000001311302 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.91999998688698
to: 19.080000013113 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.230372 0.212262 0.134894 0.035122
0.023403 0.024034 0.020431 0.017471 [error]
Peak 0.029651 0.026813 0.013723 0.007442
0.005344 0.005537 0.004683 0.003885 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 21.000 -1.920 19.080
T90 18.000 -1.920 16.080
T50 8.000 1.080 9.080
Peak 1.000 1.080 2.080
====== 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 -1.805 -0.226 0.216 - - - 1.71e-03 -2.34e-04 2.27e-04 59.520 57
CPL -1.812 -0.315 0.636 9999.360 N/A N/A 1.70e-03 N/A N/A 59.530 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 -1.996 -0.463 0.399 - - - 4.12e-03 -1.20e-03 1.12e-03 64.300 57
CPL -2.068 -0.061 1.503 36.000 N/A N/A 3.71e-03 N/A N/A 64.240 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 6.10e-08 9.30e-08 1.06e-07 2.33e-07 3.30e-07 4.93e-07 erg/cm2
90%_error_low -1.04e-08 -1.04e-08 -2.01e-08 -7.90e-08 -4.54e-08 -1.01e-07 erg/cm2
90%_error_hi 1.07e-08 1.04e-08 2.03e-08 1.03e-07 4.64e-08 1.20e-07 erg/cm2
Peak flux PL 2.74e-01 2.06e-01 1.03e-01 7.40e-02 6.17e-01 6.57e-01 ph/cm2/s
90%_error_low -7.75e-02 -4.22e-02 -3.85e-02 -4.23e-02 -1.24e-01 -1.36e-01 ph/cm2/s
90%_error_hi 8.12e-02 4.19e-02 3.97e-02 6.67e-02 1.24e-01 1.37e-01 ph/cm2/s
Fluence CPL 6.14e-08 9.20e-08 1.06e-07 2.45e-07 2.81e-07 4.92e-07 erg/cm2
90%_error_low -1.20e-08 -9.94e-09 N/A N/A -5.56e-08 -1.64e-07 erg/cm2
90%_error_hi 1.11e-08 1.41e-08 N/A N/A 4.67e-08 5.62e-08 erg/cm2
Peak flux CPL 2.75e-01 2.05e-01 1.07e-01 9.18e-02 6.20e-01 6.65e-01 ph/cm2/s
90%_error_low N/A -5.39e-02 N/A -5.07e-02 -1.88e-01 -1.41e-01 ph/cm2/s
90%_error_hi N/A 4.58e-02 N/A 2.10e-02 1.23e-01 1.37e-01 ph/cm2/s
======================================================================
Special notes of this burst