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
274.2633 46.6427 0.0218 30.3233 -48.3657 0.3432554 8.807 TRIG_00859282
Foreground time interval of the image:
0.280 6.556 (delta_t = 6.276 [sec])
Background time interval of the image:
-239.952 0.280 (delta_t = 240.232 [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 5.504000
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 5.504000
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 5.504000
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 0.280 sec. to 6.556 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.04961 ( -0.313143 0.291899 )
Norm@50keV : 3.53167E-03 ( -0.000639679 0.000635377 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.81 using 59 PHA bins.
# Reduced chi-squared = 0.9617 for 57 degrees of freedom
# Null hypothesis probability = 5.575284e-01
Photon flux (15-150 keV) in 6.276 sec: 0.407891 ( -0.075622 0.076209 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.3562e-07 ( -4.39687e-08 4.4344e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.280 sec. to 6.556 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 4.62091E-02 ( -1.77992 1.12653 )
Epeak [keV] : 101.946 ( -34.2453 -101.948 )
Norm@50keV : 1.08115E-02 ( -0.0108112 0.0638063 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.11 using 59 PHA bins.
# Reduced chi-squared = 0.9484 for 56 degrees of freedom
# Null hypothesis probability = 5.850411e-01
Photon flux (15-150 keV) in 6.276 sec: 0.392608 ( -0.078255 0.078818 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.18309e-07 ( -5.12184e-08 5.05176e-08 ) ergs/cm2
Band function
Time interval is from 0.280 sec. to 6.556 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] : 18.8170 (-3.75641 5.30323)
R^2/D10^2 : 2.40253E-02 (-0.01343 0.0268055)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.36 using 59 PHA bins.
# Reduced chi-squared = 0.9713 for 57 degrees of freedom
# Null hypothesis probability = 5.367612e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.053e-08 3.945e-09
25- 50 5.030e-08 1.662e-08
50-150 1.306e-07 4.622e-08
15-150 1.915e-07 5.554e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-51.7784 -200)
Norm : 1.71342 (-0.315147 0.315147)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.56 using 59 PHA bins.
# Reduced chi-squared = 1.080 for 57 degrees of freedom
# Null hypothesis probability = 3.163729e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.678e-08 1.564e-08
25- 50 5.151e-08 2.934e-08
50-150 1.130e-07 6.445e-08
15-150 1.913e-07 1.083e-07
Double BB
#Fit statistic : Chi-Squared = 50.36 using 59 PHA bins.
# Reduced chi-squared = 0.9204 for 55 degrees of freedom
# Reduced chi-squared = 0.9197 for 55 degrees of freedom
# Reduced chi-squared = 0.9193 for 55 degrees of freedom
# Reduced chi-squared = 0.9189 for 55 degrees of freedom
# Reduced chi-squared = 0.9186 for 55 degrees of freedom
# Reduced chi-squared = 0.9155 for 55 degrees of freedom
# Null hypothesis probability = 6.424099e-01
# Null hypothesis probability = 6.437955e-01
# Null hypothesis probability = 6.447357e-01
# Null hypothesis probability = 6.456012e-01
# Null hypothesis probability = 6.461607e-01
# Null hypothesis probability = 6.524409e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.517e-08 8.859e-09
25- 50 5.463e-08 3.163e-08
50-150 1.586e-07 8.281e-08
15-150 2.284e-07 1.083e-07
Peak spectrum fit
Power-law model
Time interval is from 5.136 sec. to 6.136 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.25720 ( -0.705774 0.672104 )
Norm@50keV : 4.17168E-03 ( -0.00153365 0.00153332 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.08 using 59 PHA bins.
# Reduced chi-squared = 0.8260 for 57 degrees of freedom
# Null hypothesis probability = 8.226902e-01
Photon flux (15-150 keV) in 1 sec: 0.493984 ( -0.188272 0.190162 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.16764e-08 ( -1.65182e-08 1.68754e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 5.136 sec. to 6.136 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.732676 ( -0.730524 6.48216 )
Epeak [keV] : 133.639 ( -133.244 -133.244 )
Norm@50keV : 7.28158E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.00 using 59 PHA bins.
# Reduced chi-squared = 0.8392 for 56 degrees of freedom
# Null hypothesis probability = 7.988119e-01
Photon flux (15-150 keV) in 1 sec: 0.481938 ( -0.248521 0.198831 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.05425e-08 ( -1.74702e-08 1.77282e-08 ) ergs/cm2
Band function
Time interval is from 5.136 sec. to 6.136 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] : 19.3493 (-6.61519 12.248)
R^2/D10^2 : 2.54593E-02 (-0.0254596 0.0774183)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.61 using 59 PHA bins.
# Reduced chi-squared = 0.8353 for 57 degrees of freedom
# Null hypothesis probability = 8.076638e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.861e-09 1.188e-09
25- 50 9.066e-09 5.535e-09
50-150 2.503e-08 1.733e-08
15-150 3.596e-08 2.318e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 (-199.363 -199.363)
Norm : 2.06407 (-0.770054 0.770074)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.65 using 59 PHA bins.
# Reduced chi-squared = 0.8361 for 57 degrees of freedom
# Null hypothesis probability = 8.064421e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.140e-09 3.244e-09
25- 50 9.887e-09 6.275e-09
50-150 2.168e-08 1.432e-08
15-150 3.671e-08 2.285e-08
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.51799 (-3.95827 24.5672)
R1^2/D10^2 : 39.3980 (-52.4299 -52.4299)
kT2 [keV] : 20.9171 (-7.30398 -20.8018)
R2^2/D10^2 : 1.89130E-02 (-0.0194728 0.049285)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.46 using 59 PHA bins.
#Fit statistic : Chi-Squared = 46.43 using 59 PHA bins.
# Reduced chi-squared = 0.8447 for 55 degrees of freedom
# Reduced chi-squared = 0.8442 for 55 degrees of freedom
# Null hypothesis probability = 7.871569e-01
# Null hypothesis probability = 7.879264e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.258e-09 2.252e-09
25- 50 8.437e-09 4.951e-09
50-150 2.652e-08 1.772e-08
15-150 3.921e-08 2.281e-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: 1.04961 ( -0.313143 0.291899 )
Norm@50keV : 3.53167E-03 ( -0.000639679 0.000635377 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.81 using 59 PHA bins.
# Reduced chi-squared = 0.9617 for 57 degrees of freedom
# Null hypothesis probability = 5.575284e-01
Photon flux (15-150 keV) in 6.276 sec: 0.407897 ( -0.0756243 0.0762003 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.356e-07 ( -4.39626e-08 4.43701e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 4.59422E-02 ( -1.78007 1.12638 )
Epeak [keV] : 101.949 ( -34.3245 -101.948 )
Norm@50keV : 1.08126E-02 ( -0.010811 0.0638063 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.11 using 59 PHA bins.
# Reduced chi-squared = 0.9484 for 56 degrees of freedom
# Null hypothesis probability = 5.850410e-01
Photon flux (15-150 keV) in 6.276 sec: 0.392602 ( -0.078254 0.078797 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.18397e-07 ( -5.12423e-08 5.06737e-08 ) 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) = 4.51e-08
S(50-100 keV) = 8.72e-08
T90 vs. Hardness ratio plot
T90 = 4.63199985027313 sec.
Hardness ratio (energy fluence ratio) = 1.93348
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 3.3271
Count Ratio (50-100 keV) / (15-25 keV) = 2.92374
Mask shadow pattern
IMX = 3.885904303817314E-01, IMY = 4.371533128550065E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 5.504000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 5.504000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 5.504000
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:
-239.952000 0.280000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4651 35.4125 5.2 39.2 -77.5 1.8659 2.2 4.2 Her X-1
268.2934 -1.4814 9.0 37.1 -143.0 0.4602 1.3 4.8 SW J1753.5-0127
270.2991 -25.1455 4.4 54.5 -166.0 2.0289 2.6 4.1 GX 5-1
270.2929 -25.7120 5.1 55.0 -166.3 1.8634 2.3 1.9 GRS 1758-258
273.8797 -14.0864 10.4 43.3 -162.1 0.4310 1.1 7.9 GX 17+2
276.0143 -30.3747 72.3 56.8 -174.3 0.1844 0.2 4.6 H1820-303
285.1582 -24.8964 2.5 49.0 178.3 2.3456 4.5 6.8 HT1900.1-2455
288.8216 10.9612 1.4 14.2 -160.3 1.7804 8.5 1.7 GRS 1915+105
299.6233 35.1849 1.6 12.7 -7.5 1.5651 7.0 1.9 Cyg X-1
308.1557 40.9574 2.5 20.5 7.8 0.9867 4.6 2.1 Cyg X-3
326.4021 38.3710 0.0 29.4 34.7 0.2838 1.1 11.2 Cyg X-2
342.2377 22.0369 3.3 41.4 65.6 3.2079 3.5 ------ UNKNOWN
333.9237 9.4627 2.5 37.5 88.3 2.9443 4.6 ------ UNKNOWN
307.5253 -25.3226 2.6 49.0 151.4 3.7462 4.5 ------ UNKNOWN
356.6704 55.1754 3.3 54.3 21.0 4.5478 3.5 ------ UNKNOWN
309.0589 -16.1098 2.9 40.4 146.1 1.9307 4.0 ------ UNKNOWN
304.0664 -1.2615 2.7 24.8 147.3 1.0428 4.4 ------ UNKNOWN
300.2298 12.1741 2.4 10.8 148.1 0.9310 4.9 ------ UNKNOWN
278.0897 -0.1483 2.2 29.5 -154.4 1.3083 5.2 ------ UNKNOWN
256.5636 -15.3031 3.4 55.0 -146.1 4.9711 3.4 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.280000 6.556000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3875 35.4221 7.6 39.3 -77.5 0.1422 1.5 5.9 Her X-1
268.3658 -1.5534 3.9 37.1 -143.1 -0.1304 -3.0 6.1 SW J1753.5-0127
270.2085 -25.0540 2.7 54.4 -165.9 -0.4158 -4.2 4.4 GX 5-1
270.3123 -25.6019 5.1 54.9 -166.3 0.2513 2.4 8.5 GRS 1758-258
273.9789 -13.8969 7.2 43.1 -162.1 -0.0764 -1.6 8.5 GX 17+2
275.9188 -30.5246 9.6 57.0 -174.3 0.1924 1.2 9.5 H1820-303
284.9748 -24.9820 8.8 49.1 178.5 -0.1002 -1.3 5.0 HT1900.1-2455
288.6852 10.8679 3.9 14.3 -160.1 0.0785 3.0 8.1 GRS 1915+105
299.7836 35.2152 7.3 12.8 -6.9 0.0424 1.6 9.5 Cyg X-1
308.2545 41.0695 4.6 20.6 7.8 -0.0665 -2.5 9.6 Cyg X-3
326.0859 38.4606 9.1 29.2 34.3 0.0433 1.3 9.3 Cyg X-2
310.9625 22.3919 2.3 12.7 72.2 0.1454 5.1 ------ UNKNOWN
275.6054 -17.3934 2.2 45.3 -166.6 0.2489 5.3 ------ UNKNOWN
279.6239 22.1937 1.9 16.3 -104.5 0.1902 6.2 ------ UNKNOWN
274.2633 46.6427 1.3 30.3 -48.4 0.3433 8.8 ------ UNKNOWN
253.9483 43.5083 2.5 41.2 -65.3 0.4294 4.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
111.948680 694.148610
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.2963 35.5093 0.0 18.6 -139.2 1.0125 2.5 12.7 Her X-1
268.3822 -1.3036 6.9 48.2 168.2 1.8098 1.7 9.0 SW J1753.5-0127
288.5999 10.8954 3.5 37.7 136.9 2.8141 3.4 12.1 GRS 1915+105
299.5893 35.2151 1.7 22.1 92.2 3.5621 7.0 0.8 Cyg X-1
308.0745 40.9755 2.4 24.8 71.0 2.4727 4.8 2.1 Cyg X-3
326.2957 38.2151 3.9 38.6 63.5 3.1461 3.0 8.7 Cyg X-2
295.6802 67.0510 2.4 23.3 1.4 1.9369 4.8 ------ UNKNOWN
Plot creation:
Fri Oct 26 12:27:28 EDT 2018