batgrbproduct Analysis for Trigger=614193
Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done of the amount of data for this trigger downloaded to date.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
- 4) This page will be updated for up to 10 downlinks after the trigger.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time (local time): Thu Oct 2 18:31:20 EDT 2014
Host Name: bat1
Current Working Dir: /local/data/bat1/prebascript/trigger614193/GCN5_download_cron
======================================================================
Trigger: 00614193 Segment: 000
BAT Trigger Time: 433917896 [s; MET]
Trigger Stop: 433918216 [s; MET]
UTC: 2014-10-02T04:44:43.399040 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 161.613753209413 Dec: -60.5811301888774 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: NO [ by BAT flight software ]
Image S/N Ratio: 7.77
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.77
Flight Position: [ source = BAT ]
RA: 161.613753209413 Dec: -60.5811301888774 [deg; J2000]
Ground Position: [ source = BAT pre-slew burst ]
RA: 161.562453674951 Dec: -60.6038585928845 [deg; J2000]
{ 10h 46m 15.0s , -60d 36' 13.9" }
+/- 3.14534398002638 [arcmin] (estimated 90% radius based on SNR)
+/- 1.51023859379651 [arcmin] (formal 1-sigma fit error)
SNR: 5.91784905452975
Angular difference between Flight and Ground position is 2.035641 arcmin
Partial Coding Fraction: 0.53125 [ including projection effects ]
Duration
T90: 320 +/-
Measured from: 0
to: 320 [s; relative to TRIGTIME]
T50: 320 +/-
Measured from: 0
to: 320 [s; relative to TRIGTIME]
WARNING: battblocks failed. Used TDRSS fore/background intervals
Fluence
Peak Flux (peak 320 second)
Measured from: 0
to: 320 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0
to: 320 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.890023 0.894673 0.243850 0.061507
0.145889 0.147293 0.124976 0.108268 [error]
Peak 0.890023 0.894673 0.243850 0.061507
0.145889 0.147293 0.124976 0.108268 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
=== 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 Power-law 3.16e-07 3.34e-07 2.49e-07 3.01e-07 1.01e-06 1.20e-06 erg/cm2
Error 7.48e-08 7.35e-08 1.02e-07 2.30e-07 2.48e-07 3.84e-07 erg/cm2
Peak flux Power-law 3.25e-02 1.91e-02 7.13e-03 3.53e-03 6.06e-02 6.22e-02 ph/cm2/s
Error 7.84e-03 4.09e-03 2.82e-03 2.52e-03 1.20e-02 1.24e-02 ph/cm2/s
Fluence Cutoff-PL 3.03e-07 4.04e-07 1.61e-07 1.22e-08 8.80e-07 8.81e-07 erg/cm2
Error 8.19e-08 1.03e-07 1.41e-07 1.18e-07 2.41e-07 2.25e-07 erg/cm2
Peak flux Cutoff-PL 3.06e-02 2.32e-02 4.96e-03 2.05e-04 5.89e-02 5.89e-02 ph/cm2/s
Error 8.58e-03 5.69e-03 -------- 1.51e-03 1.18e-02 1.19e-02 ph/cm2/s
Fluence Band 3.00e-07 4.03e-07 1.60e-07 1.23e-08 8.78e-07 8.79e-07 erg/cm2
Error 8.08e-08 1.02e-07 -------- -------- 2.31e-07 -------- erg/cm2
Peak flux Band 3.06e-02 2.29e-02 5.55e-03 -------- 5.93e-02 5.92e-02 ph/cm2/s
Error 8.61e-03 5.72e-03 -------- -------- 1.19e-02 -------- ph/cm2/s
=== Time-averaged spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 2.421 0.390 - - 3.23e-04 9.88e-05 62.910 57
CPL 0.509 2.712 26.6 13.4 5.61e-03 1.52e+00 59.570 56
=== 1-s peak spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 2.421 0.390 - - 3.23e-04 9.88e-05 62.910 57
CPL 0.509 2.712 26.6 13.4 5.61e-03 1.52e+00 59.570 56
Model : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index : photon index: E^-{Ph_index} (minus sign is not included in the 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 PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2 : Chi-Squared
dof : degree of freedom
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
T90 in the 50-300 keV band: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
=== Table of the duration information ==
Value tstart tstop
T100 320.000 0.000 320.000
T90 320.000 0.000 320.000
T50 320.000 0.000 320.000
Peak 320.000 0.000 320.000
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
161.5625 -60.6039 0.0326 41.2 -9.7 2.0144 5.9 TRIG_00614193
------------------------------------------
Foreground time interval of the image:
0.000 320.000 (delta_t = 320.000 [sec])
Background time interval of the image:
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
- 5) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
- 6) Time of each bin is in the middle of the bin.
1 s binning
From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval
64 ms binning
Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec
16 ms binning
From T100_start-5 s to T100_start+5 s
8 ms binning
From T100_start-3 s to T100_start+3 s
2 ms binning
From T100_start-1 s to T100_start+1 s
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
- 3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Time interval is from 0.000 sec. to 320.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.42121 ( -0.36181 0.418984 )
Norm@50keV : 3.23292E-04 ( -9.90092e-05 9.86449e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.91 using 59 PHA bins.
# Reduced chi-squared = 1.104 for 57 degrees of freedom
# Null hypothesis probability = 2.750109e-01
Photon flux (15-150 keV) in 320 sec: 6.05678E-02 ( -0.0119865 0.0119896 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.01407e-06 ( -2.41646e-07 2.54836e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 320.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.508659 ( -3.77904 1.64522 )
Epeak [keV] : 26.5992 ( -17.0488 9.82023 )
Norm@50keV : 5.60534E-03 ( -0.00668079 3.03902 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.57 using 59 PHA bins.
# Reduced chi-squared = 1.064 for 56 degrees of freedom
# Null hypothesis probability = 3.471914e-01
Photon flux (15-150 keV) in 320 sec: 5.89282E-02 ( -0.0118007 0.0118962 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.79862e-07 ( -2.1815e-07 2.63366e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 320.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.79048 ( -6.68133 -4.79048 )
beta : -3.10390 ( -1.38998 0.677548 )
Epeak [keV] : 24.1821 ( -4.45486 4.39567 )
Norm@50keV : 72.5849 ( -13.9001 733.633 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.33 using 59 PHA bins.
# Reduced chi-squared = 1.061 for 55 degrees of freedom
# Null hypothesis probability = 3.538642e-01
Photon flux (15-150 keV) in 320 sec: 5.93153E-02 ( 6.94068 -0.0122176 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.78272e-07 ( -8.76032e-07 -2.01498e-07 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.19976 (-1.39024 1.73747)
R^2/D10^2 : 0.106352 (-0.0628034 0.15373)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.82 using 59 PHA bins.
# Reduced chi-squared = 1.067 for 57 degrees of freedom
# Null hypothesis probability = 3.399436e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.915e-07 1.144e-07
25- 50 4.214e-07 1.722e-07
50-150 7.723e-08 4.713e-08
15-150 7.901e-07 2.864e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 33.3081 (-11.8919 21.6098)
Norm : 0.457435 (-0.148268 0.238115)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.02 using 59 PHA bins.
# Reduced chi-squared = 1.053 for 57 degrees of freedom
# Null hypothesis probability = 3.667505e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.131e-07 8.646e-08
25- 50 3.781e-07 1.266e-07
50-150 2.365e-07 1.392e-07
15-150 9.277e-07 2.947e-07
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 13.6593 ( )
R1^2/D10^2 : 3.64869E-03 (-0.0035241 0.0222645)
kT2 [keV] : 5.47431 (-5.52097 -5.52097)
R2^2/D10^2 : 0.243479 (-0.240022 -0.240022)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.84 using 59 PHA bins.
#Fit statistic : Chi-Squared = 58.73 using 59 PHA bins.
# Reduced chi-squared = 1.070 for 55 degrees of freedom
# Reduced chi-squared = 1.068 for 55 degrees of freedom
# Null hypothesis probability = 3.369713e-01
# Null hypothesis probability = 3.405618e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.099e-07 1.898e-07
25- 50 3.738e-07 2.114e-07
50-150 1.889e-07 1.207e-07
15-150 8.726e-07 4.915e-07
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 320.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.42121 ( -0.36181 0.418984 )
Norm@50keV : 3.23292E-04 ( -9.90092e-05 9.86449e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.91 using 59 PHA bins.
# Reduced chi-squared = 1.104 for 57 degrees of freedom
# Null hypothesis probability = 2.750109e-01
Photon flux (15-150 keV) in 320 sec: 6.05678E-02 ( -0.0119865 0.0119896 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.01407e-06 ( -2.41646e-07 2.54836e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 320.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.508659 ( -3.77904 1.64522 )
Epeak [keV] : 26.5992 ( -17.0488 9.82023 )
Norm@50keV : 5.60534E-03 ( -0.00668079 3.03902 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.57 using 59 PHA bins.
# Reduced chi-squared = 1.064 for 56 degrees of freedom
# Null hypothesis probability = 3.471914e-01
Photon flux (15-150 keV) in 320 sec: 5.89282E-02 ( -0.0118007 0.0118962 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.79862e-07 ( -2.1815e-07 2.63366e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 320.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.79048 ( -6.68133 -4.79048 )
beta : -3.10390 ( -1.38998 0.677548 )
Epeak [keV] : 24.1821 ( -4.45486 4.39567 )
Norm@50keV : 72.5849 ( -13.9001 733.633 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.33 using 59 PHA bins.
# Reduced chi-squared = 1.061 for 55 degrees of freedom
# Null hypothesis probability = 3.538642e-01
Photon flux (15-150 keV) in 320 sec: 5.93153E-02 ( 6.94068 -0.0122176 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.78272e-07 ( -8.76032e-07 -2.01498e-07 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.19976 (-1.39024 1.73747)
R^2/D10^2 : 0.106352 (-0.0628034 0.15373)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.82 using 59 PHA bins.
# Reduced chi-squared = 1.067 for 57 degrees of freedom
# Null hypothesis probability = 3.399436e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.915e-07 1.056e-07
25- 50 4.214e-07 1.713e-07
50-150 7.723e-08 4.839e-08
15-150 7.901e-07 2.522e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 33.3081 (-11.8919 21.6098)
Norm : 0.457435 (-0.148268 0.238115)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.02 using 59 PHA bins.
# Reduced chi-squared = 1.053 for 57 degrees of freedom
# Null hypothesis probability = 3.667505e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.131e-07 8.522e-08
25- 50 3.781e-07 1.192e-07
50-150 2.365e-07 1.420e-07
15-150 9.277e-07 3.080e-07
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 13.6593 ( )
R1^2/D10^2 : 3.64869E-03 (-0.0035241 0.0224799)
kT2 [keV] : 5.47431 (-5.52097 -5.52097)
R2^2/D10^2 : 0.243479 (-0.240022 -0.240022)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.84 using 59 PHA bins.
#Fit statistic : Chi-Squared = 58.73 using 59 PHA bins.
# Reduced chi-squared = 1.070 for 55 degrees of freedom
# Reduced chi-squared = 1.068 for 55 degrees of freedom
# Null hypothesis probability = 3.369713e-01
# Null hypothesis probability = 3.405618e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.099e-07 1.827e-07
25- 50 3.738e-07 2.211e-07
50-150 1.889e-07 1.161e-07
15-150 8.726e-07 4.763e-07
Plot creation:
Thu Oct 2 18:35:27 EDT 2014