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
103.7710 64.6747 0.0036 20.0461 -49.8385 3.6084321 54.018 TRIG_01015873
Foreground time interval of the image:
-1.000 9.925 (delta_t = 10.924 [sec])
Background time interval of the image:
-239.376 -1.000 (delta_t = 238.376 [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 0.512000
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 0.512000
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 0.512000
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 -1.000 sec. to 45.404 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.53107 ( -0.0351021 0.0350865 )
Norm@50keV : 1.97015E-02 ( -0.00035265 0.000352528 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 41.15 using 59 bins.
Reduced chi-squared = 0.72193
# Null hypothesis probability of 9.44e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 46.4 sec: 2.48072 ( -0.05296 0.05318 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.63096e-06 ( -1.5599e-07 1.5599e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -1.000 sec. to 45.404 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.45493 ( -0.141735 0.103675 )
Epeak [keV] : 413.608 ( -413.836 -413.836 )
Norm@50keV : 2.12571E-02 ( -0.0020298 0.00314021 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 40.28 using 59 bins.
Reduced chi-squared = 0.719286
# Null hypothesis probability of 9.44e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 46.4 sec: 2.46323 ( -0.061 0.05837 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.58952e-06 ( -1.72703e-07 1.62895e-07 ) ergs/cm2
Band function
Time interval is from -1.000 sec. to 45.404 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] : 17.5418 ( )
R^2/D10^2 : 0.153182 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 695.42 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.42e-110 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.414e-07 1.633e-08
25- 50 2.002e-06 5.568e-08
50-150 4.440e-06 1.371e-07
15-150 6.883e-06 1.322e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-4.95221 -200)
Norm : 10.1269 (-0.180286 0.180286)
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.66 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.45e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.170e-06 2.575e-08
25- 50 2.252e-06 4.802e-08
50-150 4.938e-06 1.021e-07
15-150 8.360e-06 1.694e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.34976 (-0.578057 0.60236)
R1^2/D10^2 : 1.39608 (-0.286293 0.386239)
kT2 [keV] : 31.9374 (-2.49971 3.15117)
R2^2/D10^2 : 1.51346E-02 (-0.00416829 0.00507026)
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.22 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.93e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.492e-07 6.032e-08
25- 50 2.266e-06 6.960e-08
50-150 5.256e-06 2.111e-07
15-150 8.470e-06 2.714e-07
Peak spectrum fit
Power-law model
Time interval is from 26.776 sec. to 27.776 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.36153 ( -0.0575079 0.0576387 )
Norm@50keV : 9.68560E-02 ( -0.00310641 0.00310582 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.76 using 59 bins.
Reduced chi-squared = 1.06596
# Null hypothesis probability of 3.42e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 11.6966 ( -0.3906 0.391 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.4367e-07 ( -3.33166e-08 3.33872e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 26.776 sec. to 27.776 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.04693 ( -0.241444 0.229065 )
Epeak [keV] : 164.371 ( -48.7248 266.659 )
Norm@50keV : 0.136028 ( -0.0291182 0.0394046 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 55.17 using 59 bins.
Reduced chi-squared = 0.985179
# Null hypothesis probability of 5.06e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 11.5002 ( -0.4137 0.4142 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.25785e-07 ( -3.62153e-08 3.60266e-08 ) ergs/cm2
Band function
Time interval is from 26.776 sec. to 27.776 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] : 17.1111 ( )
R^2/D10^2 : 0.863914 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 232.25 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.13e-23 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.142e-08 3.205e-09
25- 50 2.287e-07 9.950e-09
50-150 4.791e-07 2.780e-08
15-150 7.592e-07 3.000e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-6.13587 -200)
Norm : 48.5583 (-1.56151 1.56151)
------------------------------------------------------------
#Fit statistic : Chi-Squared 89.84 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.60e-03 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.209e-07 4.100e-09
25- 50 2.327e-07 8.300e-09
50-150 5.102e-07 1.765e-08
15-150 8.638e-07 3.020e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.56688 (-1.08409 1.17776)
R1^2/D10^2 : 5.58881 (-1.72659 2.85375)
kT2 [keV] : 31.6621 (-4.30871 6.87607)
R2^2/D10^2 : 8.36434E-02 (-0.0402845 0.0572281)
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.01 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.00e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.036e-08 1.211e-08
25- 50 2.325e-07 1.930e-08
50-150 6.031e-07 8.450e-08
15-150 9.260e-07 1.062e-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: 1.48524 ( -0.0547921 0.054861 )
Norm@50keV : 2.08252E-02 ( -0.000619214 0.00061911 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.93 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.35e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 10.92 sec: 2.58962 ( -0.0829173 0.0831102 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.16264e-06 ( -6.87118e-08 6.88379e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.16079 ( -0.228365 0.217088 )
Epeak [keV] : 139.589 ( -36.3838 159.292 )
Norm@50keV : 2.95254E-02 ( -0.00600271 0.00799166 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 43.27 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.93e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 10.92 sec: 2.53453 ( -0.0898 0.09005 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.11754e-06 ( -7.59595e-08 7.55336e-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) = 2.17e-06
S(50-100 keV) = 3.00e-06
T90 vs. Hardness ratio plot
T90 = 32.0479999780655 sec.
Hardness ratio (energy fluence ratio) = 1.38249
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.34316
Count Ratio (50-100 keV) / (15-25 keV) = 0.974642
Mask shadow pattern
IMX = 2.353283031895482E-01, IMY = 2.788536673001462E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
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:
-239.375800 -0.999800
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.6418 22.0126 0.4 24.7 122.4 9.7932 25.7 0.5 Crab
89.7405 19.1114 2.6 27.3 109.0 1.7268 4.5 ------ UNKNOWN
134.6132 27.1540 2.4 40.8 33.0 2.3177 4.7 ------ UNKNOWN
54.6974 9.4638 2.7 46.9 160.2 3.5184 4.3 ------ UNKNOWN
108.2758 32.1904 2.5 20.7 57.7 1.3940 4.5 ------ UNKNOWN
60.3069 28.8526 2.2 28.3 172.8 1.5929 5.2 ------ UNKNOWN
71.3791 46.6329 3.2 11.9 -151.4 0.9950 3.6 ------ UNKNOWN
182.9525 55.3169 2.1 55.5 -25.3 6.4235 5.4 ------ UNKNOWN
157.6688 76.9791 3.1 40.4 -49.9 2.3320 3.7 ------ UNKNOWN
16.7136 70.1485 5.7 41.1 -98.2 2.9415 2.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.999800 9.924590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.5134 21.9330 31.4 24.8 122.7 0.0319 0.4 8.3 Crab
66.1745 2.4835 2.5 48.1 142.1 1.4188 4.6 ------ UNKNOWN
88.7798 42.6843 2.1 3.7 110.1 0.3330 5.6 ------ UNKNOWN
35.9928 16.3656 2.7 52.8 -175.4 0.7700 4.4 ------ UNKNOWN
103.7710 64.6747 0.2 20.0 -49.8 3.6082 54.0 ------ UNKNOWN
27.5371 36.4179 3.3 45.8 -148.5 0.4202 3.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
51.924600 710.928300
720.624000 962.732400
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
116.0396 28.4714 3.2 37.0 74.6 8.1146 3.6 ------ UNKNOWN
120.1358 28.6414 2.9 37.5 68.7 7.4027 4.0 ------ UNKNOWN
109.1542 29.9787 2.8 34.8 84.5 7.6193 4.1 ------ UNKNOWN
92.8392 37.6304 2.9 27.8 111.5 4.4954 4.0 ------ UNKNOWN
120.7812 46.0876 3.4 20.8 57.7 3.0235 3.4 ------ UNKNOWN
184.2581 31.1088 4.0 58.2 -3.6 13.1186 2.9 ------ UNKNOWN
15.6338 36.0196 3.5 57.1 -161.5 13.1808 3.3 ------ UNKNOWN
212.2591 71.9102 3.4 35.3 -56.6 4.5314 3.4 ------ UNKNOWN
207.1719 50.6288 3.0 50.6 -34.2 9.3849 3.8 ------ UNKNOWN
310.5525 73.0241 2.8 41.2 -98.8 16.2609 4.2 ------ UNKNOWN
Plot creation:
Sat Jul 30 07:20:27 EDT 2022