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
107.3917 57.0312 0.0032 23.0626 -76.0820 9.5582565 59.638 TRIG_00999948
Foreground time interval of the image:
-0.848 9.292 (delta_t = 10.140 [sec])
Background time interval of the image:
-239.448 -0.848 (delta_t = 238.600 [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 0.128000
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 0.128000
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 0.128000
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 -0.848 sec. to 9.292 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.22133 ( -0.0354238 0.0353454 )
Norm@50keV : 6.49180E-02 ( -0.00127637 0.00127546 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 42.82 using 59 bins.
Reduced chi-squared = 0.751228
# Null hypothesis probability of 9.18e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 10.14 sec: 7.64376 ( -0.16283 0.16314 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.63969e-06 ( -1.33933e-07 1.33882e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.848 sec. to 9.292 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.846669 ( -0.153662 0.148738 )
Epeak [keV] : 184.572 ( -36.357 79.0181 )
Norm@50keV : 9.34143E-02 ( -0.0122761 0.0145805 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 23.55 using 59 bins.
Reduced chi-squared = 0.420536
# Null hypothesis probability of 1.00e+00 with 56 degrees of freedom
Photon flux (15-150 keV) in 10.14 sec: 7.46306 ( -0.17505 0.17569 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.23032e-06 ( 0 0 ) ergs/cm2
Band function
Time interval is from -0.848 sec. to 9.292 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] : 20.6416 ( )
R^2/D10^2 : 0.314519 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 404.97 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.20e-54 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.586e-07 1.024e-08
25- 50 1.315e-06 3.904e-08
50-150 4.169e-06 1.207e-07
15-150 5.742e-06 1.273e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 32.8057 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 315.01 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.21e-37 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.283e-07 1.800e-08
25- 50 1.593e-06 3.448e-08
50-150 3.495e-06 7.656e-08
15-150 5.916e-06 1.288e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.62489 (-0.839111 0.913205)
R1^2/D10^2 : 2.96234 (-0.764934 1.12999)
kT2 [keV] : 31.6340 (-2.31797 3.01488)
R2^2/D10^2 : 6.38652E-02 (-0.0173935 0.0198831)
------------------------------------------------------------
#Fit statistic : Chi-Squared 30.17 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.97e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.230e-07 3.711e-08
25- 50 1.462e-06 6.135e-08
50-150 4.552e-06 1.927e-07
15-150 6.537e-06 2.682e-07
Peak spectrum fit
Power-law model
Time interval is from -0.048 sec. to 0.952 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.919749 ( -0.0482247 0.0480351 )
Norm@50keV : 0.214166 ( -0.00594122 0.00593499 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.60 using 59 bins.
Reduced chi-squared = 1.01053
# Null hypothesis probability of 4.53e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 24.5876 ( -0.6859 0.6861 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.38556e-06 ( -7.17377e-08 7.18635e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.048 sec. to 0.952 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.529416 ( -0.206414 0.197334 )
Epeak [keV] : 227.237 ( -57.6352 161.617 )
Norm@50keV : 0.313593 ( -0.0536981 0.0676413 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.74 using 59 bins.
Reduced chi-squared = 0.816786
# Null hypothesis probability of 8.34e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 24.2277 ( -0.7067 0.707 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.3557e-06 ( -7.47278e-08 7.45447e-08 ) ergs/cm2
Band function
Time interval is from -0.048 sec. to 0.952 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] : 23.6734 ( )
R^2/D10^2 : 0.727318 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 202.59 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.46e-18 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.283e-08 4.060e-09
25- 50 4.015e-07 1.615e-08
50-150 1.678e-06 7.650e-08
15-150 2.153e-06 7.400e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 97.5342 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 497.97 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.13e-71 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.429e-07 6.900e-09
25- 50 4.672e-07 1.290e-08
50-150 1.025e-06 2.945e-08
15-150 1.735e-06 5.650e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.84933 (-1.31068 1.50776)
R1^2/D10^2 : 6.84580 (-2.39302 4.21988)
kT2 [keV] : 34.8365 (-3.32785 4.81061)
R2^2/D10^2 : 0.192906 (-0.0658297 0.0753567)
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.49 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.16e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.367e-07 1.660e-08
25- 50 4.312e-07 3.305e-08
50-150 1.807e-06 1.415e-07
15-150 2.374e-06 1.755e-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: 1.22133 ( -0.0354238 0.0353454 )
Norm@50keV : 6.49180E-02 ( -0.00127637 0.00127546 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 42.82 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.18e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 10.14 sec: 7.64371 ( -0.162817 0.163125 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.63888e-06 ( -1.33892e-07 1.33969e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.846669 ( -0.153662 0.148738 )
Epeak [keV] : 184.572 ( -36.357 79.0181 )
Norm@50keV : 9.34143E-02 ( -0.0122761 0.0145805 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 23.55 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.00e+00 with 56 degrees of freedom
Photon flux (15-150 keV) in 10.14 sec: 7.46257 ( -0.17498 0.17563 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.54187e-06 ( -1.41392e-07 1.40865e-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) = 1.41e-06
S(50-100 keV) = 2.42e-06
T90 vs. Hardness ratio plot
T90 = 7.31599986553192 sec.
Hardness ratio (energy fluence ratio) = 1.71631
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.68575
Count Ratio (50-100 keV) / (15-25 keV) = 1.60747
Mask shadow pattern
IMX = 1.024100542210024E-01, IMY = 4.132641197389955E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.128000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.128000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.128000
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:
-239.448000 -0.848000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.6257 22.0169 0.6 36.7 4.5 8.2753 20.9 0.4 Crab
70.7460 6.4089 2.2 49.8 26.8 5.0376 5.3 ------ UNKNOWN
347.6825 70.1121 3.2 34.8 178.7 1.3257 3.6 ------ UNKNOWN
295.0116 77.3813 2.8 43.1 -159.9 2.3097 4.1 ------ UNKNOWN
119.2396 23.9097 3.2 50.6 -39.5 3.6733 3.6 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.848000 9.292000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.7833 21.9946 8.7 36.7 4.3 -0.2193 -1.3 8.4 Crab
13.9387 33.7241 3.8 41.2 113.5 1.2478 3.1 ------ UNKNOWN
52.9912 12.4207 2.5 44.5 51.1 1.9763 4.7 ------ UNKNOWN
31.3894 27.4467 2.8 37.3 88.4 1.2197 4.1 ------ UNKNOWN
23.3727 34.8623 3.2 35.2 105.2 0.8351 3.6 ------ UNKNOWN
73.4583 3.0834 3.8 53.3 23.7 1.8130 3.0 ------ UNKNOWN
49.1990 39.6259 3.6 19.4 73.4 0.4859 3.2 ------ UNKNOWN
79.6639 16.3499 2.9 41.2 12.6 0.8081 4.0 ------ UNKNOWN
14.6194 79.6432 2.4 28.4 -162.6 0.6096 4.9 ------ UNKNOWN
121.4339 87.4632 2.8 32.7 -141.8 0.6328 4.1 ------ UNKNOWN
107.3917 57.0312 0.2 23.1 -76.1 9.5578 59.6 ------ UNKNOWN
276.8520 70.0510 2.6 51.9 -158.9 1.6812 4.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
53.652620 962.614900
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.6312 22.0184 0.5 39.1 33.3 33.2014 21.5 0.3 Crab
343.9303 67.1362 3.8 49.0 151.5 10.9482 3.0 ------ UNKNOWN
87.7911 21.6211 2.4 38.2 27.2 6.7349 4.8 ------ UNKNOWN
53.3524 68.0019 2.5 26.1 133.6 4.8711 4.6 ------ UNKNOWN
311.1491 66.7746 3.6 54.9 165.8 13.0356 3.2 ------ UNKNOWN
105.3623 6.2757 2.5 50.8 -0.5 8.3085 4.5 ------ UNKNOWN
116.6742 12.8238 2.9 44.8 -16.0 5.1281 4.0 ------ UNKNOWN
143.8362 40.2289 3.4 28.9 -73.2 4.3682 3.4 ------ UNKNOWN
136.9802 9.7250 3.0 52.6 -40.9 18.5582 3.9 ------ UNKNOWN
182.9401 48.9867 3.3 43.8 -116.3 14.5142 3.5 ------ UNKNOWN
206.8480 54.4593 3.2 50.9 -135.4 18.4431 3.7 ------ UNKNOWN
Plot creation:
Thu Oct 20 00:46:21 EDT 2022