batgrbproduct Analysis for Trigger=722063
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 15 downlinks after the trigger.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time (local time): Mon Nov 14 17:58:16 EST 2016
Host Name: bat1
Current Working Dir: /local/data/bat1/prebascript/trigger722063/GCN5_download_cron
======================================================================
Trigger: 00722063 Segment: 000
BAT Trigger Time: 500751043.904 [s; MET]
Trigger Stop: 500751044.928 [s; MET]
UTC: 2016-11-13T17:30:26.749800 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 179.833691635208 Dec: -5.3471792469297 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.96
Image Trigger?: NO
Rate S/N Ratio: 11.13552872566 [ if not an image trigger ]
Image S/N Ratio: 7.96
Flight Position: [ source = BAT ]
RA: 179.833691635208 Dec: -5.3471792469297 [deg; J2000]
Ground Position: [ source = BAT pre-slew burst ]
RA: 179.794288928437 Dec: -5.31590422191968 [deg; J2000]
{ 11h 59m 10.6s , -05d 18' 57.3" }
+/- 1.04161698123572 [arcmin] (estimated 90% radius based on SNR)
+/- 0.383835088016648 [arcmin] (formal 1-sigma fit error)
SNR: 28.695986779427
Angular difference between Flight and Ground position is 3.010360 arcmin
Partial Coding Fraction: 1.015625 [ including projection effects ]
Duration
T90: 42.5999999046326 +/- 11.0991403470161
Measured from: 1.40000015497208
to: 44.0000000596046 [s; relative to TRIGTIME]
T50: 19.351999938488 +/- 2.12361950748808
Measured from: 6.88400012254715
to: 26.2360000610352 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 15.2800000309944
to: 16.2800000309944 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.11599999666214
to: 64.8799999952316 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.983123 0.996042 0.702257 0.138982
0.046170 0.047933 0.041542 0.035427 [error]
Peak 0.048982 0.061865 0.053082 0.012654
0.006320 0.006839 0.005951 0.004557 [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 2.64e-07 4.22e-07 5.11e-07 1.21e-06 1.54e-06 2.41e-06 erg/cm2
Error 2.40e-08 2.29e-08 4.10e-08 2.09e-07 9.43e-08 2.41e-07 erg/cm2
Peak flux Power-law 4.31e-01 4.47e-01 3.26e-01 3.84e-01 1.35e+00 1.59e+00 ph/cm2/s
Error 8.09e-02 5.22e-02 4.72e-02 1.13e-01 1.51e-01 1.82e-01 ph/cm2/s
Fluence Cutoff-PL 2.62e-07 4.25e-07 5.10e-07 1.10e-06 1.54e-06 2.28e-06 erg/cm2
Error 2.68e-08 2.56e-08 4.18e-08 3.42e-07 1.03e-07 4.20e-07 erg/cm2
Peak flux Cutoff-PL 4.19e-01 4.54e-01 3.31e-01 3.12e-01 1.34e+00 1.52e+00 ph/cm2/s
Error 9.19e-02 6.02e-02 5.16e-02 1.54e-01 1.53e-01 2.40e-01 ph/cm2/s
Fluence Band -------- -------- -------- -------- -------- -------- erg/cm2
Error -------- -------- -------- -------- -------- -------- erg/cm2
Peak flux Band 4.15e-01 4.56e-01 3.33e-01 2.99e-01 1.34e+00 1.50e+00 ph/cm2/s
Error -------- -------- -------- -------- -------- -------- ph/cm2/s
=== Time-averaged spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 1.726 0.104 - - 2.58e-03 1.49e-04 66.970 57
CPL 1.692 0.359 430.2 -38.0 2.69e-03 1.05e-03 66.950 56
=== 1-s peak spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 1.452 0.192 - - 1.10e-02 1.26e-03 52.600 57
CPL 1.285 0.613 215.3 0.0 1.33e-02 1.16e-02 52.420 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: 30.336000 sec.
T50 in the 50-300 keV band: 13.504000 sec.
=== Table of the duration information ==
Value tstart tstop
T100 64.764 0.116 64.880
T90 42.600 1.400 44.000
T50 19.352 6.884 26.236
Peak 1.000 15.280 16.280
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
179.7943 -5.3159 0.0067 8.8 -172.6 1.1110 28.7 TRIG_00722063
------------------------------------------
Foreground time interval of the image:
0.116 11.897 (delta_t = 11.781 [sec])
Background time interval of the image:
-239.904 0.116 (delta_t = 240.020 [sec])
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 0.116 sec. to 64.880 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.72622 ( -0.103056 0.10448 )
Norm@50keV : 2.58010E-03 ( -0.000150016 0.000148772 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.97 using 59 PHA bins.
# Reduced chi-squared = 1.175 for 57 degrees of freedom
# Null hypothesis probability = 1.720236e-01
Photon flux (15-150 keV) in 64.76 sec: 0.345865 ( -0.0188993 0.0189433 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.54407e-06 ( -9.38729e-08 9.46416e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.116 sec. to 64.880 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.69177 ( -0.38547 0.331888 )
Epeak [keV] : 430.244 ( -354.159 -430.244 )
Norm@50keV : 2.68838E-03 ( -0.000584849 0.00151029 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.95 using 59 PHA bins.
# Reduced chi-squared = 1.195 for 56 degrees of freedom
# Null hypothesis probability = 1.501327e-01
Photon flux (15-150 keV) in 64.76 sec: 0.344989 ( -0.020347 0.019581 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.53756e-06 ( -1.06323e-07 1.00287e-07 ) ergs/cm2
Band function
Time interval is from 0.116 sec. to 64.880 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.97608 ( -4.97608 -4.97608 )
beta : -1.74551 ( -0.110368 0.107222 )
Epeak [keV] : 19.4563 ( -19.4563 3.56353 )
Norm@50keV : 1567.25 ( -82.9106 1.63073e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.39 using 59 PHA bins.
# Reduced chi-squared = 1.207 for 55 degrees of freedom
# Null hypothesis probability = 1.397577e-01
Photon flux (15-150 keV) in 64.76 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] : 13.2334 ( )
R^2/D10^2 : 5.58582E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 164.82 using 59 PHA bins.
# Reduced chi-squared = 2.8917 for 57 degrees of freedom
# Null hypothesis probability = 2.053637e-12
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.343e-07 1.412e-08
25- 50 4.714e-07 3.070e-08
50-150 5.273e-07 6.168e-08
15-150 1.133e-06 7.577e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 139.605 (-35.1883 43.3276)
Norm : 1.39918 (-0.0898308 0.122019)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.44 using 59 PHA bins.
# Reduced chi-squared = 1.236 for 57 degrees of freedom
# Null hypothesis probability = 1.087792e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.340e-07 1.914e-08
25- 50 4.292e-07 3.937e-08
50-150 8.216e-07 2.622e-07
15-150 1.485e-06 3.125e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.15648 (-0.798192 0.950916)
R1^2/D10^2 : 1.26846 (-0.622496 1.34432)
kT2 [keV] : 21.3118 (-2.63364 3.58207)
R2^2/D10^2 : 8.40424E-03 (-0.0036639 0.00536141)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.92 using 59 PHA bins.
# Reduced chi-squared = 1.199 for 55 degrees of freedom
# Null hypothesis probability = 1.486312e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.720e-07 5.365e-08
25- 50 3.996e-07 5.365e-08
50-150 8.232e-07 1.398e-07
15-150 1.495e-06 2.017e-07
Peak spectrum fit
Power-law model
Time interval is from 15.280 sec. to 16.280 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.45159 ( -0.191232 0.193716 )
Norm@50keV : 1.09722E-02 ( -0.00126101 0.0012509 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.60 using 59 PHA bins.
# Reduced chi-squared = 0.9229 for 57 degrees of freedom
# Null hypothesis probability = 6.405334e-01
Photon flux (15-150 keV) in 1 sec: 1.35270 ( -0.150701 0.150783 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.04965e-07 ( -1.33874e-08 1.35415e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 15.280 sec. to 16.280 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.28524 ( -0.74265 0.483056 )
Epeak [keV] : 215.288 ( -215.288 -215.288 )
Norm@50keV : 1.33446E-02 ( -0.00542776 0.0177115 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.42 using 59 PHA bins.
# Reduced chi-squared = 0.9361 for 56 degrees of freedom
# Null hypothesis probability = 6.111079e-01
Photon flux (15-150 keV) in 1 sec: 1.34451 ( -0.15417 0.15172 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.03768e-07 ( -1.43991e-08 1.4321e-08 ) ergs/cm2
Band function
Time interval is from 15.280 sec. to 16.280 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.67555 ( -4.67555 -4.67555 )
beta : -1.50334 ( -0.220333 0.20746 )
Epeak [keV] : 22.5960 ( -22.596 6.15337 )
Norm@50keV : 1166.01 ( -128.235 5.16566e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.84 using 59 PHA bins.
# Reduced chi-squared = 0.9425 for 55 degrees of freedom
# Null hypothesis probability = 5.962391e-01
Photon flux (15-150 keV) in 1 sec: 1.34332 ( ) 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] : 15.6203 (-2.39082 2.82879)
R^2/D10^2 : 0.133640 (-0.057931 0.103237)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 75.63 using 59 PHA bins.
# Reduced chi-squared = 1.327 for 57 degrees of freedom
# Null hypothesis probability = 4.998491e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.777e-09 1.604e-09
25- 50 2.793e-08 5.140e-09
50-150 4.718e-08 1.129e-08
15-150 8.188e-08 1.337e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-61.461 -200)
Norm : 5.54799 (-0.61219 0.61219)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.27 using 59 PHA bins.
# Reduced chi-squared = 0.9346 for 57 degrees of freedom
# Null hypothesis probability = 6.156370e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.382e-08 7.720e-09
25- 50 2.658e-08 1.462e-08
50-150 5.829e-08 3.185e-08
15-150 9.868e-08 5.445e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.95270 (-1.7282 2.37599)
R1^2/D10^2 : 2.42393 (-1.66048 6.89794)
kT2 [keV] : 25.3720 (-5.6711 11.3506)
R2^2/D10^2 : 2.13706E-02 (-0.0152631 0.0311113)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.16 using 59 PHA bins.
# Reduced chi-squared = 0.9302 for 55 degrees of freedom
# Null hypothesis probability = 6.220330e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.365e-08 6.981e-09
25- 50 2.461e-08 1.046e-08
50-150 6.553e-08 3.634e-08
15-150 1.038e-07 4.400e-08
Plot creation:
Mon Nov 14 18:02:37 EST 2016