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 19:06:59 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger419797
======================================================================
Trigger: 00419797 Segment: 000
BAT Trigger Time: 293317813.76 [s; MET]
Trigger Stop: 293317814.784 [s; MET]
UTC: 2010-04-18T21:10:08.040780 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 256.376042032129 Dec: 11.4640150980648 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.06
Image Trigger?: NO
Rate S/N Ratio: 8.66025403784439 [ if not an image trigger ]
Image S/N Ratio: 7.06
Analysis Position: [ source = BAT ]
RA: 256.376042032129 Dec: 11.4640150980648 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 256.358592624736 Dec: 11.4570291293882 [deg; J2000]
{ 17h 05m 26.1s , +11d 27' 25.3" }
+/- 1.95940550751062 [arcmin] (estimated 90% radius based on SNR)
+/- 0.767567668347795 [arcmin] (formal 1-sigma fit error)
SNR: 11.635844707804
Angular difference between the analysis and refined position is 1.108402 arcmin
Partial Coding Fraction: 0.4921875 [ including projection effects ]
Duration
T90: 7.92799997329712 +/- 1.07807980939455
Measured from: -0.375999987125397
to: 7.55199998617172 [s; relative to TRIGTIME]
T50: 4.15199995040894 +/- 1.27208803953934
Measured from: 1.08399999141693
to: 5.23599994182587 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.472000002861023
to: 1.47200000286102 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.11199998855591
to: 8.30400002002716 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.307201 0.228703 0.137078 0.011237
0.029058 0.026546 0.022683 0.019809 [error]
Peak 0.056544 0.038189 0.023681 0.002547
0.009870 0.008797 0.007709 0.006375 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 9.416 -1.112 8.304
T90 7.928 -0.376 7.552
T50 4.152 1.084 5.236
Peak 1.000 0.472 1.472
====== 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 -2.195 -0.271 0.251 - - - 3.91e-03 -6.70e-04 6.45e-04 65.280 57
CPL -2.506 -0.429 0.647 187.320 -85.542 -187.320 2.71e-03 -1.56e-03 3.26e-03 64.250 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 -2.661 -0.711 0.547 - - - 4.79e-03 -2.19e-03 2.16e-03 58.060 57
CPL -1.983 -0.016 1.396 1.014 -0.643 23.022 1.20e-02 N/A N/A 59.040 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 9.08e-08 1.10e-07 9.57e-08 1.43e-07 3.46e-07 4.39e-07 erg/cm2
90%_error_low -1.55e-08 -1.33e-08 -2.23e-08 -5.71e-08 -4.93e-08 -8.49e-08 erg/cm2
90%_error_hi 1.59e-08 1.32e-08 2.32e-08 7.91e-08 5.07e-08 1.01e-07 erg/cm2
Peak flux PL 6.10e-01 3.12e-01 9.86e-02 3.99e-02 1.04e+00 1.06e+00 ph/cm2/s
90%_error_low -1.77e-01 -9.09e-02 -5.40e-02 -3.99e-02 -2.35e-01 -2.40e-01 ph/cm2/s
90%_error_hi 1.81e-01 8.24e-02 6.45e-02 6.22e-02 2.35e-01 2.41e-01 ph/cm2/s
Fluence CPL N/A N/A N/A N/A N/A N/A erg/cm2
90%_error_low -1.55e-08 -1.33e-08 -2.23e-08 -5.71e-08 -4.93e-08 -8.49e-08 erg/cm2
90%_error_hi 1.59e-08 1.32e-08 2.32e-08 7.91e-08 5.07e-08 1.01e-07 erg/cm2
Peak flux CPL N/A N/A N/A N/A N/A N/A ph/cm2/s
90%_error_low -1.77e-01 -9.09e-02 -5.40e-02 -3.99e-02 -2.35e-01 -2.40e-01 ph/cm2/s
90%_error_hi 1.81e-01 8.24e-02 6.45e-02 6.22e-02 2.35e-01 2.41e-01 ph/cm2/s
======================================================================
Special notes of this burst