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
269.7410 45.3589 0.0041 31.7336 156.0012 3.6141380 46.789 TRIG_01042113
Foreground time interval of the image:
-0.004 8.605 (delta_t = 8.609 [sec])
Background time interval of the image:
-160.195 -0.004 (delta_t = 160.191 [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
8 ms binning
From T100_start-3 s to T100_start+3 s
2 ms binning
From T100_start-1 s to T100_start+1 s
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 -0.004 sec. to 66.064 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.02156 ( -0.0566251 0.0560931 )
Norm@50keV : 7.78814E-03 ( -0.000229702 0.000228897 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 64.08 using 59 bins.
Reduced chi-squared = 1.12421
# Null hypothesis probability of 2.42e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 66.07 sec: 0.897754 ( -0.027529 0.027667 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.52286e-06 ( -1.63734e-07 1.63888e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.004 sec. to 66.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.01581 ( -0.0623647 0.0518268 )
Epeak [keV] : 1.00000E+04 ( -10000 -10000 )
Norm@50keV : 7.83296E-03 ( -0.000230181 0.000218434 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 64.42 using 59 bins.
Reduced chi-squared = 1.15036
# Null hypothesis probability of 2.06e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 66.07 sec: 0.897421 ( -0.027565 0.02763 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.5495e-06 ( -1.92347e-07 1.35023e-07 ) ergs/cm2
Band function
Time interval is from -0.004 sec. to 66.064 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] : 24.3794 ( )
R^2/D10^2 : 2.23176E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 359.55 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.75e-45 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.543e-07 9.514e-09
25- 50 8.639e-07 3.898e-08
50-150 3.819e-06 1.619e-07
15-150 4.837e-06 1.473e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 3.85543 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 351.22 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.94e-44 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.343e-07 2.078e-08
25- 50 1.220e-06 3.634e-08
50-150 2.676e-06 7.961e-08
15-150 4.530e-06 1.434e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.61806 (-0.913887 1.01045)
R1^2/D10^2 : 0.389420 (-0.116677 0.178203)
kT2 [keV] : 46.0719 (-5.89636 8.84251)
R2^2/D10^2 : 3.05362E-03 (-0.00111545 0.00141176)
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.88 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.69e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.130e-07 4.219e-08
25- 50 1.073e-06 7.466e-08
50-150 4.207e-06 3.452e-07
15-150 5.693e-06 4.080e-07
Peak spectrum fit
Power-law model
Time interval is from 1.736 sec. to 2.736 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.471297 ( -0.159473 0.152676 )
Norm@50keV : 3.34853E-02 ( -0.00306073 0.00299067 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 50.85 using 59 bins.
Reduced chi-squared = 0.892105
# Null hypothesis probability of 7.04e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.380174 ( -0.148779 0.235892 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.56562e-07 ( -3.7508e-08 3.76349e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 1.736 sec. to 2.736 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.461528 ( -0.161847 0.153514 )
Epeak [keV] : 9999.36 ( -9999.36 -9999.36 )
Norm@50keV : 3.37885E-02 ( -0.0028698 0.0169081 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 50.88 using 59 bins.
Reduced chi-squared = 0.908571
# Null hypothesis probability of 6.69e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 3.99308 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 4.56825e-07 ( -4.13834e-08 4.08319e-08 ) ergs/cm2
Band function
Time interval is from 1.736 sec. to 2.736 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] : 35.4868 (-4.46669 5.77615)
R^2/D10^2 : 4.09424E-02 (-0.0129768 0.0174503)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 66.82 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.75e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.234e-09 1.214e-09
25- 50 4.751e-08 6.665e-09
50-150 3.884e-07 4.855e-08
15-150 4.431e-07 4.715e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.361 ( )
Norm : 14.3319 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 183.08 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.82e-15 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.569e-08 1.316e-08
25- 50 6.865e-08 3.732e-08
50-150 1.506e-07 7.255e-08
15-150 2.549e-07 1.176e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.69720 (-1.88933 3.1394)
R1^2/D10^2 : 3.90481 (-3.11811 17.9361)
kT2 [keV] : 43.8376 (-7.49102 12.9119)
R2^2/D10^2 : 2.28857E-02 (-0.0106194 0.0141399)
------------------------------------------------------------
#Fit statistic : Chi-Squared 47.54 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.52e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.088e-08 1.001e-08
25- 50 5.098e-08 1.300e-08
50-150 3.964e-07 8.165e-08
15-150 4.683e-07 9.030e-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: 0.625169 ( -0.0685193 0.0672336 )
Norm@50keV : 2.49437E-02 ( -0.000968729 0.000960224 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 44.13 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.94e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 8.609 sec: 2.90382 ( -0.103257 0.103505 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.71338e-06 ( -9.82838e-08 9.8499e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.64130 ( -0.529964 -2.6413 )
Epeak [keV] : 141.628 ( )
Norm@50keV : 5.62464E-07 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 70.48 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.22e-02 with 56 degrees of freedom
Photon flux (15-150 keV) in 8.609 sec: 2.90482 ( -0.10534 0.10169 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.71079e-06 ( -9.53533e-08 1.00407e-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) = 1.04e-06
S(50-100 keV) = 2.04e-06
T90 vs. Hardness ratio plot
T90 = 52.8759999275208 sec.
Hardness ratio (energy fluence ratio) = 1.96154
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.53225
Count Ratio (50-100 keV) / (15-25 keV) = 1.64248
Mask shadow pattern
IMX = -5.649636120925426E-01, IMY = -2.515239810748552E-01
TIME vs. PHA plot around the trigger time
TIME vs. DetID plot around the trigger time
100 us light curve (15-350 keV)
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:
-160.195410 -0.004000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.5673 35.2405 4.7 36.5 129.9 0.9504 2.4 8.1 Her X-1
268.5243 -1.4829 49.8 31.3 56.9 0.0694 0.2 9.5 SW J1753.5-0127
270.4677 -25.2244 7.3 49.5 32.6 1.1196 1.6 13.2 GX 5-1
270.3737 -25.7279 2.9 50.0 32.4 2.9378 3.9 4.0 GRS 1758-258
274.0259 -14.0806 6.0 38.1 35.8 0.6750 1.9 2.9 GX 17+2
276.0566 -30.3836 19.5 52.3 24.1 -0.5268 -0.6 6.9 H1820-303
285.1664 -24.9484 4.6 45.0 15.5 0.9386 2.5 7.3 HT1900.1-2455
288.6277 11.0753 0.0 9.1 28.6 -0.0376 -0.2 12.7 GRS 1915+105
299.5732 35.1894 1.1 17.0 -152.1 1.8927 10.6 1.1 Cyg X-1
308.2101 41.0925 7.1 25.5 -144.4 0.3264 1.6 9.5 Cyg X-3
326.3023 38.3810 6.0 35.0 -123.3 0.5606 1.9 7.1 Cyg X-2
252.6820 9.4562 1.8 39.4 87.5 4.1862 6.3 ------ UNKNOWN
332.2637 -3.9520 2.7 45.9 -57.0 3.8127 4.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.004000 8.604600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4894 35.5135 7.0 36.7 130.3 0.2153 1.6 10.4 Her X-1
268.3731 -1.4535 220.8 31.4 57.2 -0.0053 -0.1 0.3 SW J1753.5-0127
270.1533 -25.0870 12.9 49.5 33.0 -0.1958 -0.9 7.1 GX 5-1
270.1699 -25.7024 6.6 50.0 32.6 -0.4180 -1.7 7.6 GRS 1758-258
273.8361 -13.9150 8.0 38.0 36.2 0.1618 1.4 12.3 GX 17+2
275.7753 -30.2998 11.6 52.3 24.4 0.2739 1.0 8.7 H1820-303
285.1187 -24.9359 4.9 45.0 15.5 -0.2506 -2.4 4.6 HT1900.1-2455
288.8972 10.9454 6.0 9.2 26.8 0.1046 1.9 5.8 GRS 1915+105
299.5531 35.2625 5.3 17.0 -152.3 -0.1125 -2.2 4.1 Cyg X-1
307.9273 40.8305 5.5 25.2 -144.5 -0.1192 -2.1 11.1 Cyg X-3
326.1784 38.3224 22.5 34.9 -123.3 0.0439 0.5 0.3 Cyg X-2
242.3483 63.9234 3.0 55.4 162.5 1.2723 3.9 ------ UNKNOWN
269.7413 45.3593 0.2 31.7 156.0 3.6201 46.9 ------ UNKNOWN
264.6463 71.1700 2.5 54.1 176.0 0.8954 4.7 ------ UNKNOWN
304.3629 -23.8250 2.7 45.0 -9.4 0.3939 4.3 ------ UNKNOWN
315.3496 -21.3358 3.1 46.8 -23.7 0.4003 3.6 ------ UNKNOWN
331.0162 -11.1977 2.4 49.1 -48.0 1.1830 4.8 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
60.204600 718.080700
720.704000 962.835700
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4854 35.3788 2.9 15.3 74.1 3.1870 3.9 2.6 Her X-1
268.3192 -1.5823 22.3 47.0 21.5 0.9028 0.5 8.3 SW J1753.5-0127
288.9090 11.0436 16.0 38.0 -12.0 0.6316 0.7 8.8 GRS 1915+105
299.5971 35.2162 1.3 24.7 -56.8 8.2261 9.1 0.9 Cyg X-1
308.1641 40.9529 8.1 28.1 -75.3 1.3841 1.4 2.4 Cyg X-3
258.8706 49.3118 3.8 8.4 141.6 1.8466 3.0 ------ UNKNOWN
356.7314 67.2051 2.8 47.9 -129.1 11.6297 4.1 ------ UNKNOWN
Plot creation:
Sat Jul 30 07:07:06 EDT 2022