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: Sat Mar 14 16:10:07 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger632995
======================================================================
Trigger: 00632995 Segment: 000
BAT Trigger Time: 446864681.884 [s; MET]
Trigger Stop: 446864681.916 [s; MET]
UTC: 2015-03-01T01:04:28.634980 [includes UTCF correction]
Where From?: (*SHORT BURST*) TDRSS scaled map message
BAT
RA: 244.285852544314 Dec: -48.6970222502195 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 13.43
Image Trigger?: NO
Rate S/N Ratio: 43.5201102939779 [ if not an image trigger ]
Image S/N Ratio: 13.43
Analysis Position: [ source = BAT ]
RA: 244.285852544314 Dec: -48.6970222502195 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 244.280161468935 Dec: -48.7319304348823 [deg; J2000]
{ 16h 17m 07.2s , -48d 43' 54.9" }
+/- 1.86527467161496 [arcmin] (estimated 90% radius based on SNR)
+/- 0.807288209779148 [arcmin] (formal 1-sigma fit error)
SNR: 12.4836895925704
Angular difference between the analysis and refined position is 2.106574 arcmin
Partial Coding Fraction: 0.9609375 [ including projection effects ]
Duration
T90: 0.483999967575073 +/- 0.144055479289884
Measured from: 0
to: 0.483999967575073 [s; relative to TRIGTIME]
T50: 0.179999947547913 +/- 0.116068941971857
Measured from: 0.00800001621246338
to: 0.187999963760376 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.220000028610229
to: 0.779999971389771 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0
to: 0.560000002384186 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.036667 0.042247 0.032243 0.009608
0.005555 0.005310 0.004342 0.003608 [error]
Peak 0.039583 0.042439 0.029779 0.011110
0.007154 0.006623 0.005447 0.004677 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 0.560 0.000 0.560
T90 0.484 0.000 0.484
T50 0.180 0.008 0.188
Peak 1.000 -0.220 0.780
====== 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 -1.440 -0.231 0.233 - - - 1.37e-02 -1.73e-03 1.73e-03 53.930 57
CPL -1.436 -0.233 0.623 9999.350 -9999.350 -9999.350 1.38e-02 -1.07e-02 1.39e-02 53.940 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 -1.607 -0.294 0.289 - - - 7.50e-03 -1.26e-03 1.24e-03 46.880 57
CPL -1.512 -1.278 1.098 240.488 -240.488 -240.488 8.43e-03 -2.18e-03 2.32e-02 46.930 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 9.27e-09 1.77e-08 2.60e-08 8.23e-08 7.36e-08 1.35e-07 erg/cm2
90%_error_low -2.08e-09 -2.42e-09 -4.27e-09 -2.63e-08 -1.02e-08 -2.98e-08 erg/cm2
90%_error_hi 2.20e-09 2.38e-09 4.22e-09 3.42e-08 1.03e-08 3.62e-08 erg/cm2
Peak flux PL 3.42e-01 3.23e-01 2.12e-01 2.16e-01 9.66e-01 1.09e+00 ph/cm2/s
90%_error_low -8.91e-02 -5.37e-02 -4.60e-02 -8.24e-02 -1.55e-01 -1.73e-01 ph/cm2/s
90%_error_hi 9.53e-02 5.30e-02 4.56e-02 1.11e-01 1.55e-01 1.74e-01 ph/cm2/s
Fluence CPL 9.27e-09 1.75e-08 2.60e-08 8.19e-08 7.46e-08 1.34e-07 erg/cm2
90%_error_low N/A N/A N/A N/A N/A -5.10e-08 erg/cm2
90%_error_hi N/A N/A N/A N/A N/A 1.62e-08 erg/cm2
Peak flux CPL 3.43e-01 3.23e-01 2.12e-01 2.18e-01 9.66e-01 1.10e+00 ph/cm2/s
90%_error_low -1.02e-01 -5.25e-02 -4.59e-02 -1.38e-01 -1.61e-01 -2.52e-01 ph/cm2/s
90%_error_hi 5.34e-02 6.54e-02 4.78e-02 1.07e-01 1.55e-01 1.68e-01 ph/cm2/s
======================================================================
Special notes of this burst