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: Fri Jan 17 19:24:45 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger416076
======================================================================
Trigger: 00416076 Segment: 000
BAT Trigger Time: 290398986.048 [s; MET]
Trigger Stop: 290398988.096 [s; MET]
UTC: 2010-03-16T02:23:00.430180 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 252.031620948293 Dec: 71.8254875350265 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.09
Image Trigger?: NO
Rate S/N Ratio: 13.7113092008021 [ if not an image trigger ]
Image S/N Ratio: 8.09
Analysis Position: [ source = BAT ]
RA: 252.031620948293 Dec: 71.8254875350265 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 251.954967264097 Dec: 71.8182472120343 [deg; J2000]
{ 16h 47m 49.2s , +71d 49' 05.7" }
+/- 1.66405369542645 [arcmin] (estimated 90% radius based on SNR)
+/- 0.735874335362166 [arcmin] (formal 1-sigma fit error)
SNR: 14.6948461306747
Angular difference between the analysis and refined position is 1.499152 arcmin
Partial Coding Fraction: 0.1621094 [ including projection effects ]
Duration
T90: 6.75200003385544 +/- 0.951865531564711
Measured from: -0.695999979972839
to: 6.0560000538826 [s; relative to TRIGTIME]
T50: 3.45600003004074 +/- 0.845430073540578
Measured from: 0.600000023841858
to: 4.0560000538826 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 1.94800001382828
to: 2.94800001382828 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.20800000429153
to: 6.7600000500679 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.294856 0.399444 0.405071 0.082008
0.041435 0.044327 0.038530 0.031579 [error]
Peak 0.069012 0.086164 0.081433 0.004933
0.015376 0.015731 0.014633 0.011339 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 7.968 -1.208 6.760
T90 6.752 -0.696 6.056
T50 3.456 0.600 4.056
Peak 1.000 1.948 2.948
====== 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 -1.462 -0.183 0.182 - - - 1.08e-02 -1.14e-03 1.14e-03 52.510 57
CPL -1.112 -0.499 0.822 139.396 -67.906 -139.396 1.58e-02 N/A N/A 51.820 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 -1.459 -0.299 0.299 - - - 1.83e-02 -3.21e-03 3.21e-03 53.640 57
CPL -1.100 -1.389 1.414 134.089 -134.089 -134.089 2.72e-02 -1.19e-02 9.55e-02 53.360 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 1.06e-07 2.00e-07 2.90e-07 8.96e-07 8.22e-07 1.49e-06 erg/cm2
90%_error_low -1.98e-08 -2.33e-08 -3.78e-08 -2.30e-07 -9.27e-08 -2.60e-07 erg/cm2
90%_error_hi 2.09e-08 2.31e-08 3.73e-08 2.76e-07 9.31e-08 2.96e-07 erg/cm2
Peak flux PL 7.24e-01 7.46e-01 5.43e-01 6.34e-01 2.26e+00 2.65e+00 ph/cm2/s
90%_error_low -2.19e-01 -1.49e-01 -1.14e-01 -2.36e-01 -4.16e-01 -4.65e-01 ph/cm2/s
90%_error_hi 2.41e-01 1.46e-01 1.12e-01 3.06e-01 4.18e-01 4.66e-01 ph/cm2/s
Fluence CPL 9.83e-08 2.05e-07 3.01e-07 5.76e-07 8.10e-07 1.18e-06 erg/cm2
90%_error_low -2.53e-08 -2.61e-08 -4.35e-08 -3.21e-07 -9.69e-08 -3.34e-07 erg/cm2
90%_error_hi 2.58e-08 2.69e-08 4.49e-08 5.44e-07 9.65e-08 4.19e-07 erg/cm2
Peak flux CPL 6.71e-01 7.69e-01 5.66e-01 4.42e-01 2.23e+00 2.45e+00 ph/cm2/s
90%_error_low -2.71e-01 -1.64e-01 -1.30e-01 -4.42e-01 -4.29e-01 -5.63e-01 ph/cm2/s
90%_error_hi 2.79e-01 1.72e-01 1.39e-01 2.72e-01 4.29e-01 6.24e-01 ph/cm2/s
======================================================================
Special notes of this burst