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
154.6274 -14.9384 0.0175 28.4270 82.7663 0.7991920 10.974 TRIG_01034325
Foreground time interval of the image:
-10.200 2.696 (delta_t = 12.896 [sec])
Background time interval of the image:
-239.832 -10.200 (delta_t = 229.632 [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 -10.200 sec. to 2.696 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.33938 ( -0.325382 0.369068 )
Norm@50keV : 2.55523E-03 ( -0.000679985 0.000668126 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.40 using 59 bins.
Reduced chi-squared = 1.09474
# Null hypothesis probability of 2.90e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 12.9 sec: 0.456596 ( -0.074262 0.074287 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.1746e-07 ( -6.61905e-08 6.97529e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -10.200 sec. to 2.696 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.92834 ( )
Epeak [keV] : 6.17492 ( )
Norm@50keV : 4.69641E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.39 using 59 bins.
Reduced chi-squared = 1.11411
# Null hypothesis probability of 2.60e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 12.9 sec: 0.451353 ( -0.073159 0.074184 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.02684e-07 ( -8.05377e-08 7.84339e-08 ) ergs/cm2
Band function
Time interval is from -10.200 sec. to 2.696 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] : 6.26416 (-0.965163 1.20326)
R^2/D10^2 : 1.37289 (-0.721279 1.44267)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 65.73 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.00e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.798e-08 3.199e-08
25- 50 1.072e-07 3.212e-08
50-150 1.167e-08 7.441e-09
15-150 2.168e-07 5.982e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 34.4982 (-12.6062 24.3151)
Norm : 3.27630 (-1.00341 1.64228)
------------------------------------------------------------
#Fit statistic : Chi-Squared 63.04 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.71e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.178e-08 2.076e-08
25- 50 1.128e-07 2.877e-08
50-150 7.363e-08 4.160e-08
15-150 2.782e-07 7.243e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.38335 (-0.973808 1.11845)
R1^2/D10^2 : 2.30624 (-1.12245 3.0555)
kT2 [keV] : 26.3912 (-11.0029 47.4604)
R2^2/D10^2 : 2.85983E-03 (-0.00271401 0.0161053)
------------------------------------------------------------
#Fit statistic : Chi-Squared 56.57 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.16e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.007e-07 5.210e-08
25- 50 1.004e-07 5.298e-08
50-150 1.335e-07 8.021e-08
15-150 3.346e-07 1.614e-07
Peak spectrum fit
Power-law model
Time interval is from 0.876 sec. to 1.876 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.81818 ( -0.308686 0.34353 )
Norm@50keV : 1.03943E-02 ( -0.0022689 0.00217555 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.62 using 59 bins.
Reduced chi-squared = 0.870526
# Null hypothesis probability of 7.45e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.44261 ( -0.27868 0.27878 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.56533e-08 ( -2.06518e-08 2.06923e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.876 sec. to 1.876 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.79698 ( -0.968717 1.17392 )
Epeak [keV] : 445.015 ( -9965.78 -9966.05 )
Norm@50keV : 1.06565E-02 ( -0.0104123 0.0214687 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.63 using 59 bins.
Reduced chi-squared = 0.88625
# Null hypothesis probability of 7.13e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.44336 ( -0.28694 0.28717 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.56974e-08 ( -2.1416e-08 2.13953e-08 ) ergs/cm2
Band function
Time interval is from 0.876 sec. to 1.876 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] : 10.1166 (-3.29393 8.29285)
R^2/D10^2 : 0.618908 (-0.614787 2.15406)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 65.37 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.09e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.341e-08 5.531e-09
25- 50 3.267e-08 1.218e-08
50-150 1.635e-08 9.382e-09
15-150 6.243e-08 2.340e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 116.097 (-56.7722 -117.162)
Norm : 6.20435 (-1.41178 1.86462)
------------------------------------------------------------
#Fit statistic : Chi-Squared 50.59 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.13e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.618e-08 4.744e-09
25- 50 2.878e-08 1.126e-08
50-150 5.052e-08 3.314e-08
15-150 9.547e-08 4.482e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.37249 (-1.51582 1.98972)
R1^2/D10^2 : 5.47876 (-3.93134 17.4442)
kT2 [keV] : 26.1811 (-7.33527 14.1997)
R2^2/D10^2 : 1.63694E-02 (-0.0129026 0.0364794)
------------------------------------------------------------
#Fit statistic : Chi-Squared 47.09 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.67e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.951e-08 1.114e-08
25- 50 2.471e-08 1.275e-08
50-150 5.642e-08 3.472e-08
15-150 1.006e-07 5.524e-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: 2.33938 ( -0.325382 0.369068 )
Norm@50keV : 2.55523E-03 ( -0.000679985 0.000668126 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.40 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.90e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 12.9 sec: 0.456542 ( -0.0742548 0.0742815 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.17392e-07 ( -6.60892e-08 6.97649e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.92951 ( )
Epeak [keV] : 6.09159 ( )
Norm@50keV : 4.68822E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.39 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.60e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 12.9 sec: 0.453926 ( -0.0757 0.075582 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.08567e-07 ( -8.55592e-08 7.70594e-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) = 1.03e-07
S(50-100 keV) = 8.15e-08
T90 vs. Hardness ratio plot
T90 = 12.1120001077652 sec.
Hardness ratio (energy fluence ratio) = 0.791262
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.692539
Count Ratio (50-100 keV) / (15-25 keV) = 0.353618
Mask shadow pattern
IMX = 6.815979628195033E-02, IMY = -5.369977684412671E-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:
-239.832000 -10.200000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.6139 -40.7037 8.8 21.0 6.2 0.2997 1.3 9.7 Vela X-1
169.9511 -60.5195 0.0 18.6 -88.1 0.0540 0.2 12.4 Cen X-3
186.8599 -62.7650 2.6 24.6 -104.1 1.3805 4.4 5.6 GX 301-2
144.2355 -5.5229 2.7 40.6 70.8 4.0550 4.3 ------ UNKNOWN
170.0335 -19.1908 3.5 23.7 116.5 1.0837 3.3 ------ UNKNOWN
100.5944 -22.5348 3.3 55.5 11.3 4.5297 3.5 ------ UNKNOWN
222.5396 -13.3869 3.0 58.1 -179.9 5.8104 3.9 ------ UNKNOWN
93.1642 -42.8926 3.4 50.3 -14.7 2.0290 3.4 ------ UNKNOWN
230.2481 -23.1454 2.9 57.6 -165.5 4.6417 4.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-10.200000 2.696000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.7367 -40.5038 5.5 21.0 6.8 -0.1001 -2.1 10.0 Vela X-1
170.6102 -60.6985 4.0 18.9 -89.0 0.1475 2.9 9.8 Cen X-3
187.0709 -62.8294 0.0 24.7 -104.2 -0.0600 -1.1 11.9 GX 301-2
154.6274 -14.9385 1.0 28.4 82.8 0.7994 11.0 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
80.068590 962.293300
1059.168000 1149.328000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.3443 -40.5831 7.9 30.7 -64.5 -1.6382 -1.5 8.6 Vela X-1
122.8172 15.2977 3.8 43.6 38.5 6.8414 3.1 ------ UNKNOWN
145.5522 4.4665 2.9 21.4 60.5 3.4056 4.0 ------ UNKNOWN
211.9411 -6.3388 3.0 56.8 173.9 14.6186 3.9 ------ UNKNOWN
212.6059 -9.0873 2.8 56.9 177.2 14.7126 4.1 ------ UNKNOWN
120.9337 -31.5239 3.0 34.9 -38.3 4.3163 3.9 ------ UNKNOWN
92.2733 -19.2772 4.4 59.5 -17.8 10.3457 2.6 ------ UNKNOWN
213.3758 -31.8666 3.2 55.8 -155.3 12.3759 3.6 ------ UNKNOWN
208.3947 -37.1292 3.3 52.4 -148.3 8.8828 3.5 ------ UNKNOWN
127.9125 -48.2265 3.1 39.9 -66.1 7.3219 3.8 ------ UNKNOWN
114.5114 -46.8752 3.0 46.1 -56.3 12.1611 3.9 ------ UNKNOWN
Plot creation:
Sat Jul 30 07:13:52 EDT 2022