batgrbproduct Analysis for Trigger=593433
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 Mar 27 22:32:37 EDT 2014
Host Name: gcn5
Current Working Dir: /local/data/raid16/prebascript_archive/trigger593433/GCN5_download_cron
======================================================================
Trigger: 00593433 Segment: 000
BAT Trigger Time: 417588296 [s; MET]
Trigger Stop: 417588616 [s; MET]
UTC: 2014-03-27T04:44:44.189700 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 266.97936413303 Dec: -64.710707686308 [deg; J2000]
Catalogged Source?: YES
Point Source?: YES
GRB Indicated?: NO [ by BAT flight software ]
Image S/N Ratio: 6.32
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 6.32
Flight Position: [ source = BAT ]
RA: 266.97936413303 Dec: -64.710707686308 [deg; J2000]
Ground Position: [ source = BAT pre-slew burst ]
RA: 266.569745754693 Dec: -64.7519384481419 [deg; J2000]
{ 17h 46m 16.7s , -64d 45' 07.0" }
+/- 8.40573274332445 [arcmin] (estimated 90% radius based on SNR)
+/- 6.89663210990795 [arcmin] (formal 1-sigma fit error)
SNR: 1.45310208576978
Angular difference between Flight and Ground position is 10.778775 arcmin
Partial Coding Fraction: 0.7578125 [ 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 -0.022407 0.362384 0.081961 0.151004
0.140890 0.118981 0.094228 0.078748 [error]
Peak -0.022407 0.362384 0.081961 0.151004
0.140890 0.118981 0.094228 0.078748 [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 3.87e-08 7.22e-08 1.04e-07 3.14e-07 2.95e-07 5.32e-07 erg/cm2
Error 4.49e-08 5.62e-08 8.29e-08 6.80e-07 2.20e-07 7.63e-07 erg/cm2
Peak flux Power-law 3.90e-03 3.98e-03 2.85e-03 3.26e-03 1.20e-02 1.40e-02 ph/cm2/s
Error 4.59e-03 3.16e-03 2.24e-03 6.06e-03 9.08e-03 1.21e-02 ph/cm2/s
Fluence Cutoff-PL 2.42e-08 1.25e-07 8.66e-08 2.79e-09 2.37e-07 2.39e-07 erg/cm2
Error 3.85e-08 1.06e-07 1.02e-07 1.56e-07 1.63e-07 2.25e-07 erg/cm2
Peak flux Cutoff-PL 2.30e-03 6.70e-03 2.69e-03 4.92e-05 1.17e-02 1.17e-02 ph/cm2/s
Error 3.81e-03 5.77e-03 2.96e-03 1.68e-03 8.01e-03 8.02e-03 ph/cm2/s
Fluence Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 erg/cm2
Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 erg/cm2
Peak flux Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 ph/cm2/s
Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 ph/cm2/s
=== Time-averaged spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 1.471 1.304 - - 9.69e-05 7.01e-05 52.720 57
CPL -3.509 0.000 46.4 133.9 6.53e-02 1.29e+04 49.950 56
=== 1-s peak spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 1.471 1.304 - - 9.69e-05 7.01e-05 52.720 57
CPL -3.509 0.000 46.4 133.9 6.53e-02 1.29e+04 49.950 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
266.5697 -64.7519 0.1317 33.6 -15.4 0.5203 1.5 TRIG_00593433
------------------------------------------
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: 1.47136 ( -1.49879 1.10894 )
Norm@50keV : 9.68796E-05 ( -7.01229e-05 7.00218e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.72 using 59 PHA bins.
# Reduced chi-squared = 0.9249 for 57 degrees of freedom
# Null hypothesis probability = 6.363231e-01
Photon flux (15-150 keV) in 320 sec: 1.20320E-02 ( -0.0088332 0.00932501 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.94904e-07 ( -2.15532e-07 2.2356e-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: -3.50939 ( )
Epeak [keV] : 46.4300 ( -16.7296 251.165 )
Norm@50keV : 6.52853E-02 ( -0.0769845 25713.4 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.95 using 59 PHA bins.
# Reduced chi-squared = 0.8920 for 56 degrees of freedom
# Null hypothesis probability = 7.018510e-01
Photon flux (15-150 keV) in 320 sec: 1.17281E-02 ( -0.00750435 0.0085251 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.37312e-07 ( -1.45155e-07 1.80823e-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 : 5.00000 ( -13.6227 -4.61742 )
beta : -9.37166 ( 8.7801 8.7801 )
Epeak [keV] : 46.2401 ( -11.5015 31.8139 )
Norm@50keV : 0.356311 ( -0.209122 38668.7 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.01 using 59 PHA bins.
# Reduced chi-squared = 0.9093 for 55 degrees of freedom
# Null hypothesis probability = 6.651180e-01
Photon flux (15-150 keV) in 320 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 12.3140 (-4.86437 9.76165)
R^2/D10^2 : 3.44688E-03 (-0.00343825 0.018266)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.35 using 59 PHA bins.
# Reduced chi-squared = 0.8833 for 57 degrees of freedom
# Null hypothesis probability = 7.211027e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.544e-08 2.531e-08
25- 50 1.149e-07 7.901e-08
50-150 1.066e-07 8.403e-08
15-150 2.569e-07 1.784e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 198.172 ( )
Norm : 5.01357E-02 (-0.0360213 0.0811203)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.43 using 59 PHA bins.
# Reduced chi-squared = 0.9197 for 57 degrees of freedom
# Null hypothesis probability = 6.471241e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 197.409 ( )
R1^2/D10^2 : 4.97894E-07 (-4.62428e-07 -4.62428e-07)
kT2 [keV] : 11.6354 (-4.86392 10.2278)
R2^2/D10^2 : 4.07279E-03 (-0.00370158 0.0193955)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.35 using 59 PHA bins.
#Fit statistic : Chi-Squared = 50.29 using 59 PHA bins.
# Reduced chi-squared = 0.9154 for 55 degrees of freedom
# Reduced chi-squared = 0.9144 for 55 degrees of freedom
# Null hypothesis probability = 6.527754e-01
# Null hypothesis probability = 6.547662e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
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: 1.47136 ( -1.49879 1.10894 )
Norm@50keV : 9.68796E-05 ( -7.01229e-05 7.00218e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.72 using 59 PHA bins.
# Reduced chi-squared = 0.9249 for 57 degrees of freedom
# Null hypothesis probability = 6.363231e-01
Photon flux (15-150 keV) in 320 sec: 1.20320E-02 ( -0.00883317 0.00932501 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.94904e-07 ( -2.15532e-07 2.2356e-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: -3.50939 ( )
Epeak [keV] : 46.4300 ( -16.7296 251.165 )
Norm@50keV : 6.52853E-02 ( -0.0769845 25713.4 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.95 using 59 PHA bins.
# Reduced chi-squared = 0.8920 for 56 degrees of freedom
# Null hypothesis probability = 7.018510e-01
Photon flux (15-150 keV) in 320 sec: 1.17281E-02 ( -0.00750435 0.0085251 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.37312e-07 ( -1.45155e-07 1.80823e-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 : 2.62889 ( -10.3846 -1.93873 )
beta : -9.63575 ( 9.63575 9.19833 )
Epeak [keV] : 47.5737 ( -17.9383 28.2309 )
Norm@50keV : 2.18235E-02 ( -0.0218869 0.519077 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.04 using 59 PHA bins.
# Reduced chi-squared = 0.9098 for 55 degrees of freedom
# Null hypothesis probability = 6.642517e-01
Photon flux (15-150 keV) in 320 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 12.3140 (-4.86437 9.76165)
R^2/D10^2 : 3.44688E-03 (-0.00343825 0.018266)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.35 using 59 PHA bins.
# Reduced chi-squared = 0.8833 for 57 degrees of freedom
# Null hypothesis probability = 7.211027e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.544e-08 2.523e-08
25- 50 1.149e-07 7.826e-08
50-150 1.066e-07 9.576e-08
15-150 2.569e-07 1.843e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 198.172 ( )
Norm : 5.01357E-02 (-0.0360213 0.0811203)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.43 using 59 PHA bins.
# Reduced chi-squared = 0.9197 for 57 degrees of freedom
# Null hypothesis probability = 6.471241e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 197.409 ( )
R1^2/D10^2 : 4.97894E-07 (-4.62428e-07 -4.62428e-07)
kT2 [keV] : 11.6354 (-4.86392 10.2278)
R2^2/D10^2 : 4.07279E-03 (-0.00370158 0.0193955)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.35 using 59 PHA bins.
#Fit statistic : Chi-Squared = 50.29 using 59 PHA bins.
# Reduced chi-squared = 0.9154 for 55 degrees of freedom
# Reduced chi-squared = 0.9144 for 55 degrees of freedom
# Null hypothesis probability = 6.527754e-01
# Null hypothesis probability = 6.547662e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Plot creation:
Thu Mar 27 22:56:40 EDT 2014