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
245.1152 -73.5852 0.0139 38.2686 21.9084 0.8151612 13.857 TRIG_00929981
Foreground time interval of the image:
-1.300 3.716 (delta_t = 5.016 [sec])
Background time interval of the image:
-119.656 -1.300 (delta_t = 118.356 [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 2.048000
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 2.048000
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 2.048000
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 -1.300 sec. to 3.716 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.82288 ( -0.198498 0.207541 )
Norm@50keV : 1.05037E-02 ( -0.00139685 0.00136576 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.10 using 59 PHA bins.
# Reduced chi-squared = 1.019 for 57 degrees of freedom
# Null hypothesis probability = 4.345418e-01
Photon flux (15-150 keV) in 5.016 sec: 1.46051 ( -0.1568 0.1568 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.84772e-07 ( -6.42705e-08 6.59313e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -1.300 sec. to 3.716 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.41099 ( -1.127 0.698391 )
Epeak [keV] : 58.5753 ( )
Norm@50keV : 1.83154E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.52 using 59 PHA bins.
# Reduced chi-squared = 1.027 for 56 degrees of freedom
# Null hypothesis probability = 4.188452e-01
Photon flux (15-150 keV) in 5.016 sec: 1.43403 ( -0.16757 0.16685 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from -1.300 sec. to 3.716 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] : 10.0641 (-1.22818 1.43073)
R^2/D10^2 : 0.669339 (-0.263138 0.424023)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.32 using 59 PHA bins.
# Reduced chi-squared = 1.234 for 57 degrees of freedom
# Null hypothesis probability = 1.106136e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.941e-08 1.317e-08
25- 50 1.741e-07 2.488e-08
50-150 9.257e-08 2.661e-08
15-150 3.361e-07 5.372e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 86.7047 (-28.4288 57.8332)
Norm : 6.69224 (-0.999968 1.26528)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.48 using 59 PHA bins.
# Reduced chi-squared = 1.008 for 57 degrees of freedom
# Null hypothesis probability = 4.573952e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.747e-08 1.452e-08
25- 50 1.467e-07 2.049e-08
50-150 2.183e-07 1.043e-07
15-150 4.525e-07 1.132e-07
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.05103 (-2.21425 1.4442)
R1^2/D10^2 : 1.35413 (-0.56118 1.0175)
kT2 [keV] : 53.5217 (-34.2779 -52.2639)
R2^2/D10^2 : 1.52710E-03 (-0.00146828 0.0493312)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.47 using 59 PHA bins.
#Fit statistic : Chi-Squared = 54.84 using 59 PHA bins.
# Reduced chi-squared = 1.027 for 55 degrees of freedom
# Reduced chi-squared = 0.9971 for 55 degrees of freedom
# Null hypothesis probability = 4.197800e-01
# Null hypothesis probability = 4.806155e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.562e-08 4.795e-08
25- 50 1.454e-07 7.687e-08
50-150 1.995e-07 1.216e-07
15-150 4.305e-07 2.352e-07
Peak spectrum fit
Power-law model
Time interval is from 0.360 sec. to 1.360 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.52715 ( -0.306831 0.315135 )
Norm@50keV : 1.53925E-02 ( -0.00292396 0.00287179 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.05 using 59 PHA bins.
# Reduced chi-squared = 0.9132 for 57 degrees of freedom
# Null hypothesis probability = 6.608131e-01
Photon flux (15-150 keV) in 1 sec: 1.93601 ( -0.34385 0.34413 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.45415e-07 ( -2.98942e-08 3.06326e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.360 sec. to 1.360 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.03503 ( -1.57264 0.774769 )
Epeak [keV] : 91.2752 ( -42.5651 -91.2829 )
Norm@50keV : 2.83011E-02 ( -0.015577 0.167962 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.58 using 59 PHA bins.
# Reduced chi-squared = 0.9211 for 56 degrees of freedom
# Null hypothesis probability = 6.426619e-01
Photon flux (15-150 keV) in 1 sec: 1.89874 ( -0.35715 0.35604 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.38542e-07 ( -3.38099e-08 3.44954e-08 ) ergs/cm2
Band function
Time interval is from 0.360 sec. to 1.360 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] : 13.5146 (-2.72765 3.53174)
R^2/D10^2 : 0.317456 (-0.178291 0.388672)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.35 using 59 PHA bins.
# Reduced chi-squared = 1.006 for 57 degrees of freedom
# Null hypothesis probability = 4.621262e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.228e-08 4.086e-09
25- 50 4.407e-08 1.375e-08
50-150 5.202e-08 2.021e-08
15-150 1.084e-07 3.203e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 198.782 (-113.093 -198.84)
Norm : 7.90885 (-1.39198 1.62643)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.65 using 59 PHA bins.
# Reduced chi-squared = 0.9061 for 57 degrees of freedom
# Null hypothesis probability = 6.753105e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.970e-08 1.142e-08
25- 50 3.788e-08 2.131e-08
50-150 8.301e-08 4.706e-08
15-150 1.406e-07 7.940e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.09285 (-3.56247 5.33581)
R1^2/D10^2 : 1.95602 (-1.57953 20.8277)
kT2 [keV] : 24.9142 (-10.3838 -24.9171)
R2^2/D10^2 : 2.73330E-02 (-0.0271942 0.191821)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.34 using 59 PHA bins.
# Reduced chi-squared = 0.9334 for 55 degrees of freedom
# Null hypothesis probability = 6.152869e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.898e-08 1.066e-08
25- 50 3.923e-08 2.083e-08
50-150 8.091e-08 4.832e-08
15-150 1.391e-07 7.180e-08
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: 1.82288 ( -0.198498 0.207541 )
Norm@50keV : 1.05037E-02 ( -0.00139685 0.00136576 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.10 using 59 PHA bins.
# Reduced chi-squared = 1.019 for 57 degrees of freedom
# Null hypothesis probability = 4.345418e-01
Photon flux (15-150 keV) in 5.016 sec: 1.46043 ( -0.156783 0.156792 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.847e-07 ( -6.42454e-08 6.59388e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.40903 ( -1.12615 0.699399 )
Epeak [keV] : 58.4692 ( )
Norm@50keV : 1.83661E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.52 using 59 PHA bins.
# Reduced chi-squared = 1.027 for 56 degrees of freedom
# Null hypothesis probability = 4.188451e-01
Photon flux (15-150 keV) in 5.016 sec: 1.43375 ( -0.16751 0.16201 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.58328e-07 ( -1.14788e-07 1.18572e-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) = 1.37e-07
S(50-100 keV) = 1.55e-07
T90 vs. Hardness ratio plot
T90 = 4.32799994945526 sec.
Hardness ratio (energy fluence ratio) = 1.13139
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.35592
Count Ratio (50-100 keV) / (15-25 keV) = 0.744657
Mask shadow pattern
IMX = 7.318926219078824E-01, IMY = -2.943437052745889E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
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:
-119.656000 -1.300000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.2988 -40.4761 0.0 26.7 145.0 -0.3506 -1.1 11.5 Vela X-1
170.4704 -60.4909 14.3 10.5 49.7 0.1925 0.8 9.1 Cen X-3
186.6555 -62.6569 7.1 15.2 20.0 0.4411 1.6 6.8 GX 301-2
255.9945 -37.8519 511.3 59.0 -18.7 0.0323 0.0 0.6 4U 1700-377
311.6498 -81.5158 3.6 46.8 40.5 2.4726 3.2 ------ UNKNOWN
141.9501 -22.8109 2.8 35.5 177.2 1.4052 4.2 ------ UNKNOWN
140.1404 -9.8381 2.3 47.6 -175.4 2.5439 4.9 ------ UNKNOWN
149.1241 -9.4315 2.6 44.5 -163.9 1.8616 4.5 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-1.300000 3.716000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.3738 -40.4495 12.7 26.6 145.2 0.0402 0.9 9.5 Vela X-1
170.2862 -60.4217 24.1 10.4 50.2 -0.0171 -0.5 12.1 Cen X-3
186.2869 -62.7794 5.5 15.2 20.7 0.0739 2.1 10.2 GX 301-2
255.9147 -37.8594 3.9 58.9 -18.7 0.6804 2.9 3.5 4U 1700-377
245.1151 -73.5852 0.8 38.3 21.9 0.8152 13.9 ------ UNKNOWN
213.9228 -26.9444 2.6 39.9 -61.2 0.4237 4.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
87.444600 962.368700
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5087 -40.4957 23.3 56.6 -164.6 -2.2072 -0.5 3.7 Vela X-1
170.5178 -60.6413 4.4 29.2 -148.2 3.2650 2.6 6.0 Cen X-3
186.4659 -62.6738 5.0 23.1 -137.1 2.4915 2.3 7.8 GX 301-2
256.2124 -37.8305 28.2 36.1 -28.8 -0.5416 -0.4 10.7 4U 1700-377
256.5470 -36.5135 8.2 37.4 -28.5 1.9896 1.4 7.6 GX 349+2
263.0805 -24.7252 6.6 49.8 -22.2 -4.5722 -1.7 4.1 GX 1+4
264.4745 -44.5263 0.0 30.3 -15.8 0.9718 0.9 12.4 4U 1735-44
270.3415 -25.0783 5.7 50.3 -13.6 4.3989 2.0 3.1 GX 5-1
270.3544 -25.6520 60.1 49.7 -13.5 0.4229 0.2 6.1 GRS 1758-258
275.7917 -30.3761 8.0 46.0 -6.0 -2.5135 -1.4 6.9 H1820-303
285.1525 -24.8190 4.2 53.2 3.1 -7.7005 -2.8 8.8 HT1900.1-2455
262.8923 -33.7417 6.3 40.8 -20.9 2.8529 1.8 7.4 GX 354-0
9.4894 -60.5373 3.9 40.9 97.9 13.9048 3.0 ------ UNKNOWN
32.2860 -68.9389 4.4 36.0 116.9 5.8778 2.6 ------ UNKNOWN
247.7355 -67.4546 3.7 6.1 -34.2 3.2191 3.1 ------ UNKNOWN
258.3288 -60.6947 3.8 13.8 -15.6 3.0777 3.0 ------ UNKNOWN
140.2982 -49.7746 3.9 46.7 -164.7 6.8515 2.9 ------ UNKNOWN
152.8548 -44.5618 3.3 48.3 -151.3 9.1426 3.5 ------ UNKNOWN
265.4774 -15.5773 2.9 59.1 -20.7 22.2519 4.1 ------ UNKNOWN
Plot creation:
Wed Nov 27 16:26:32 EST 2019