Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte
Image
Pre-slew 15.0-350.0 keV image (Event data)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
115.8736 -62.3232 0.0068 42.5811 -140.2686 7.6243966 28.049 TRIG_00932595
Foreground time interval of the image:
-37.984 10.549 (delta_t = 48.533 [sec])
Background time interval of the image:
-239.752 -37.984 (delta_t = 201.768 [sec])
Lightcurves
Notes:
- 1) The mask-weighted light curves are using the flight position.
- 2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 3) 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.
- 4) 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.
- 5) 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
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
8 ms binning
From T100_start-3 s to T100_start+3 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
2 ms binning
From T100_start-1 s to T100_start+1 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Quad-rate summed light curves (from T0-300s to T0+1000s)
Spectral Evolution
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using 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.
Time averaged spectrum fit using the average DRM
Power-law model
Time interval is from -37.984 sec. to 66.492 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.56615 ( -0.0696076 0.0697265 )
Norm@50keV : 7.08294E-03 ( -0.000277723 0.000277562 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.66 using 59 PHA bins.
# Reduced chi-squared = 0.9064 for 57 degrees of freedom
# Null hypothesis probability = 6.748097e-01
Photon flux (15-150 keV) in 104.5 sec: 0.900935 ( -0.037814 0.037903 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.95322e-06 ( -2.87513e-07 2.88409e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -37.984 sec. to 66.492 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.32370 ( -0.283515 0.263509 )
Epeak [keV] : 146.524 ( -52.2495 -146.525 )
Norm@50keV : 9.27841E-03 ( -0.00227583 0.00333815 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.26 using 59 PHA bins.
# Reduced chi-squared = 0.8796 for 56 degrees of freedom
# Null hypothesis probability = 7.259644e-01
Photon flux (15-150 keV) in 104.5 sec: 0.888769 ( -0.039972 0.040049 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.84867e-06 ( -3.11852e-07 3.1056e-07 ) ergs/cm2
Band function
Time interval is from -37.984 sec. to 66.492 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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] : 15.4739 ( )
R^2/D10^2 : 8.84335E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 200.67 using 59 PHA bins.
# Reduced chi-squared = 3.5205 for 57 degrees of freedom
# Null hypothesis probability = 6.977843e-18
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.607e-07 3.814e-08
25- 50 1.883e-06 9.457e-08
50-150 3.110e-06 2.315e-07
15-150 5.453e-06 2.383e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-33.2232 -200)
Norm : 3.65319 (-0.142156 0.142156)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.34 using 59 PHA bins.
# Reduced chi-squared = 0.8655 for 57 degrees of freedom
# Null hypothesis probability = 7.547865e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.515e-07 4.211e-08
25- 50 1.830e-06 8.151e-08
50-150 4.014e-06 1.761e-07
15-150 6.796e-06 3.036e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.45337 (-0.929896 1.03567)
R1^2/D10^2 : 0.782020 (-0.271242 0.453536)
kT2 [keV] : 27.8989 (-3.65194 5.49371)
R2^2/D10^2 : 8.54656E-03 (-0.00401779 0.00583846)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.18 using 59 PHA bins.
# Reduced chi-squared = 0.8941 for 55 degrees of freedom
# Null hypothesis probability = 6.956053e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.884e-07 1.158e-07
25- 50 1.874e-06 1.897e-07
50-150 4.075e-06 5.157e-07
15-150 6.838e-06 7.028e-07
Peak spectrum fit
Power-law model
Time interval is from 4.036 sec. to 5.036 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.32693 ( -0.161009 0.15999 )
Norm@50keV : 3.83072E-02 ( -0.00409444 0.00409423 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.59 using 59 PHA bins.
# Reduced chi-squared = 0.9051 for 57 degrees of freedom
# Null hypothesis probability = 6.774949e-01
Photon flux (15-150 keV) in 1 sec: 4.59366 ( -0.51391 0.51483 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.76166e-07 ( -4.22556e-08 4.23095e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 4.036 sec. to 5.036 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.578381 ( -0.760423 0.636357 )
Epeak [keV] : 105.254 ( -29.6808 238.001 )
Norm@50keV : 8.68738E-02 ( -0.0428435 0.108322 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.44 using 59 PHA bins.
# Reduced chi-squared = 0.8471 for 56 degrees of freedom
# Null hypothesis probability = 7.853494e-01
Photon flux (15-150 keV) in 1 sec: 4.55457 ( -0.51578 0.51671 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from 4.036 sec. to 5.036 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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] : 17.4224 (-2.14482 2.57167)
R^2/D10^2 : 0.346253 (-0.132567 0.200708)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.82 using 59 PHA bins.
# Reduced chi-squared = 1.084 for 57 degrees of freedom
# Null hypothesis probability = 3.081893e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.126e-08 4.385e-09
25- 50 9.589e-08 1.440e-08
50-150 2.094e-07 3.610e-08
15-150 3.265e-07 4.385e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-32.4422 -200)
Norm : 19.4651 (-2.09616 2.09616)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.15 using 59 PHA bins.
# Reduced chi-squared = 0.9675 for 57 degrees of freedom
# Null hypothesis probability = 5.447981e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.846e-08 7.315e-09
25- 50 9.323e-08 2.878e-08
50-150 2.045e-07 1.071e-07
15-150 3.462e-07 1.229e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 10.3878 (-2.96607 3.34061)
R1^2/D10^2 : 1.29788 (-0.696301 2.03592)
kT2 [keV] : 35.1755 (-10.9511 53.4821)
R2^2/D10^2 : 2.11742E-02 (-0.0201823 0.0671535)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.46 using 59 PHA bins.
# Reduced chi-squared = 0.8266 for 55 degrees of freedom
# Null hypothesis probability = 8.168006e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.256e-08 1.767e-08
25- 50 9.987e-08 5.167e-08
50-150 2.395e-07 1.239e-07
15-150 3.720e-07 1.870e-07
Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)
Power-law model
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.36093 ( -0.0749246 0.0745112 )
Norm@50keV : 1.08842E-02 ( -0.000481959 0.000481932 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 74.31 using 59 PHA bins.
# Reduced chi-squared = 1.304 for 57 degrees of freedom
# Null hypothesis probability = 6.155456e-02
Photon flux (15-150 keV) in 48.53 sec: 1.31421 ( -0.062335 0.0624661 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.14641e-06 ( -2.40125e-07 2.40484e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.813406 ( -0.337111 0.312905 )
Epeak [keV] : 117.901 ( -25.6636 81.3447 )
Norm@50keV : 1.97016E-02 ( -0.00554234 0.00837451 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 64.93 using 59 PHA bins.
# Reduced chi-squared = 1.159 for 56 degrees of freedom
# Null hypothesis probability = 1.935788e-01
Photon flux (15-150 keV) in 48.53 sec: 1.28347 ( -0.0646 0.0647 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.01504e-06 ( -2.56238e-07 2.55122e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 1.78e-06
S(50-100 keV) = 2.39e-06
T90 vs. Hardness ratio plot
T90 = 78.5 sec.
Hardness ratio (energy fluence ratio) = 1.3427
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.46816
Count Ratio (50-100 keV) / (15-25 keV) = 1.12172
Mask shadow pattern
IMX = -7.067092969774560E-01, IMY = 5.873768208119715E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
Spacecraft aspect plot
Bright source in the pre-burst/pre-slew/post-slew images
Pre-burst image of 15-350 keV band
Time interval of the image:
-239.752000 -37.984000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
31.2751 -18.6206 3.2 40.9 98.0 2.8104 3.6 ------ UNKNOWN
320.9346 -32.3041 2.3 47.4 -0.5 1.9331 4.9 ------ UNKNOWN
296.8152 -50.3738 2.4 46.2 -35.5 2.3600 4.8 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-37.984000 10.548600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
64.6718 -43.4280 3.8 30.7 162.5 0.3595 3.0 ------ UNKNOWN
97.0916 -46.8351 2.7 44.9 -167.4 0.7725 4.3 ------ UNKNOWN
115.8735 -62.3233 0.4 42.6 -140.3 7.6247 28.1 ------ UNKNOWN
286.7620 -51.2368 2.4 50.0 -42.5 2.5308 4.9 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
70.348590 962.311500
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.4993 -40.5792 1.8 24.8 -157.4 5.2386 6.4 2.0 Vela X-1
170.1232 -60.5231 5.0 25.3 -84.5 2.6028 2.3 8.3 Cen X-3
186.8962 -62.8424 4.2 31.0 -71.9 3.6454 2.8 7.9 GX 301-2
72.5210 -31.7210 2.7 41.1 102.5 11.7604 4.3 ------ UNKNOWN
62.1376 -71.6533 3.2 22.0 27.5 3.0447 3.6 ------ UNKNOWN
123.3702 -5.7641 2.5 56.9 173.9 18.2176 4.6 ------ UNKNOWN
181.0818 -48.0466 3.7 38.0 -96.0 8.5612 3.1 ------ UNKNOWN
Plot creation:
Wed Nov 27 16:21:33 EST 2019