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: Wed Jan 22 14:47:36 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger221755
======================================================================
Trigger: 00221755 Segment: 000
BAT Trigger Time: 175893150.592 [s; MET]
Trigger Stop: 175893154.688 [s; MET]
UTC: 2006-07-29T19:12:29.244420 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 95.3382279470773 Dec: -62.3451070936891 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.13
Image Trigger?: NO
Rate S/N Ratio: 8.36660026534076 [ if not an image trigger ]
Image S/N Ratio: 7.13
Analysis Position: [ source = BAT ]
RA: 95.3382279470773 Dec: -62.3451070936891 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 95.3382 Dec: -62.3451 [deg; J2000]
{ 06h 21m 21.2s , -62d -20' -42.4" }
+/- 2.36868675805 [arcmin] (estimated 90% radius based on SNR)
SNR: 8.87491688628
Angular difference between the analysis and refined position is 0.000887 arcmin
Partial Coding Fraction: 0.1875 [ including projection effects ]
Duration
T90: 113.044000029564 +/- 22.1282404255033
Measured from: 3.13599997758865
to: 116.180000007153 [s; relative to TRIGTIME]
T50: 21.3680000007153 +/- 2.92526647666488
Measured from: 73.8400000035763
to: 95.2080000042915 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 91.9679999947548
to: 92.9679999947548 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.912000000476837
to: 128.523999989033 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.354910 1.744004 1.065882 0.316310
0.097713 0.102062 0.091547 0.086502 [error]
Peak 0.048615 0.056307 0.031711 0.011645
0.005114 0.005413 0.004586 0.004125 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 127.612 0.912 128.524
T90 113.044 3.136 116.180
T50 21.368 73.840 95.208
Peak 1.000 91.968 92.968
====== 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 -1.689 -0.130 0.128 - - - 2.21e-03 -1.69e-04 1.67e-04 56.710 57
CPL -1.599 -0.496 0.538 201.156 -137.712 -201.156 2.47e-03 -4.95e-04 2.33e-03 56.620 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 -1.827 -0.206 0.198 - - - 8.26e-03 -1.09e-03 1.06e-03 57.530 57
CPL -1.732 -0.475 0.809 119.324 N/A N/A 9.37e-03 N/A N/A 57.480 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 4.30e-07 7.04e-07 8.73e-07 2.14e-06 2.61e-06 4.15e-06 erg/cm2
90%_error_low -4.78e-08 -4.91e-08 -9.09e-08 -4.34e-07 -2.11e-07 -5.20e-07 erg/cm2
90%_error_hi 4.91e-08 4.91e-08 9.12e-08 5.06e-07 2.13e-07 5.78e-07 erg/cm2
Peak flux PL 4.66e-01 3.87e-01 2.18e-01 1.82e-01 1.15e+00 1.25e+00 ph/cm2/s
90%_error_low -7.36e-02 -4.12e-02 -3.76e-02 -5.46e-02 -1.23e-01 -1.37e-01 ph/cm2/s
90%_error_hi 7.58e-02 4.12e-02 3.80e-02 6.79e-02 1.23e-01 1.37e-01 ph/cm2/s
Fluence CPL 4.25e-07 7.11e-07 8.73e-07 1.81e-06 2.59e-06 3.82e-06 erg/cm2
90%_error_low -5.42e-08 -5.56e-08 -9.21e-08 -1.06e-06 -2.57e-07 -1.10e-06 erg/cm2
90%_error_hi 4.46e-08 6.47e-08 9.27e-08 4.28e-07 2.34e-07 8.68e-07 erg/cm2
Peak flux CPL 4.62e-01 3.91e-01 2.18e-01 1.56e-01 1.15e+00 1.23e+00 ph/cm2/s
90%_error_low -7.99e-02 -4.54e-02 -3.91e-02 -1.56e-01 -1.27e-01 -1.75e-01 ph/cm2/s
90%_error_hi 7.93e-02 5.47e-02 3.87e-02 3.86e-02 1.26e-01 1.60e-01 ph/cm2/s
======================================================================
Special notes of this burst