Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
261.9398 -16.2134 0.0030 30.7 -142.6 46.1274 63.4 TRIG_01187225
------------------------------------------
Foreground time interval of the image:
-13.699 35.830 (delta_t = 49.529 [sec])
37.000 102.260 (delta_t = 65.260 [sec])
103.000 174.468 (delta_t = 71.468 [sec])
Background time interval of the image:
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) 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.
- 5) 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.
- 6) 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 216.000000
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 216.000000
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 216.000000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of 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.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Multiple GTIs in the spectrum
tstart tstop
-71.824000 -56.795800
-42.000000 35.830000
37.000000 102.260000
103.000000 174.468000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.91820 ( -0.0414084 0.0415888 )
Norm@50keV : 1.00458E-02 ( -0.000210132 0.000209567 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 95.98 using 59 PHA bins.
# Reduced chi-squared = 1.684 for 57 degrees of freedom
# Null hypothesis probability = 9.492130e-04
Photon flux (15-150 keV) in 229.6 sec: 2.60482 ( -0.0713196 0.0720277 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.67211e-05 ( -5.4885e-07 5.50689e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-71.824000 -56.795800
-42.000000 35.830000
37.000000 102.260000
103.000000 174.468000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.98428 ( -0.0894332 -1.98428 )
Epeak [keV] : 0.751808 ( -0.039258 0.041974 )
Norm@50keV : 3.10184E-02 ( -0.00109997 0.00162011 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.70 using 59 PHA bins.
# Reduced chi-squared = 1.013 for 56 degrees of freedom
# Null hypothesis probability = 4.486035e-01
Photon flux (15-150 keV) in 229.6 sec: 2.39801 ( -0.08631 0.08746 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.49552e-05 ( -6.99591e-07 7.04413e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-71.824000 -56.795800
-42.000000 35.830000
37.000000 102.260000
103.000000 174.468000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.75065 ( )
beta : -8.24944 ( )
Epeak [keV] : 12.1064 ( )
Norm@50keV : 3.18068E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 130.70 using 59 PHA bins.
# Reduced chi-squared = 2.3764 for 55 degrees of freedom
# Null hypothesis probability = 4.187461e-08
Photon flux (15-150 keV) in 229.6 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] : 8.70090 ( )
R^2/D10^2 : 1.48391 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 513.75 using 59 PHA bins.
# Reduced chi-squared = 9.0131 for 57 degrees of freedom
# Null hypothesis probability = 9.966982e-75
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.930e-06 2.043e-07
25- 50 9.931e-06 1.894e-07
50-150 3.413e-06 1.481e-07
15-150 1.827e-05 3.765e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 29.4209 (-1.05402 1.10966)
Norm : 18.1998 (-0.940824 0.990832)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.419e-06 2.973e-07
25- 50 9.516e-06 1.975e-07
50-150 5.079e-06 2.078e-07
15-150 2.302e-05 4.512e-07
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.04578 (-0.295833 0.289018)
R1^2/D10^2 : 6.46558 (-1.16888 1.55227)
kT2 [keV] : 17.4808 (-1.40769 1.65342)
R2^2/D10^2 : 3.55428E-02 (-0.0123532 0.0180271)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.792e-06 4.799e-07
25- 50 9.668e-06 3.054e-07
50-150 5.712e-06 4.339e-07
15-150 2.317e-05 8.576e-07
Peak spectrum fit
Power-law model
Time interval is from -4.108 sec. to -3.108 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.71777 ( -0.190554 0.205873 )
Norm@50keV : 1.49731E-02 ( -0.00221229 0.00219625 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 74.51 using 59 PHA bins.
# Reduced chi-squared = 1.307 for 57 degrees of freedom
# Null hypothesis probability = 5.961953e-02
Photon flux (15-150 keV) in 1 sec: 3.38147 ( -0.304513 0.304824 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.60288e-07 ( -1.60165e-08 1.62745e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -4.108 sec. to -3.108 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.49341 ( -1.20945 0.490333 )
Epeak [keV] : 14.8801 ( -13.7631 10.6539 )
Norm@50keV : 8.75076E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.99 using 59 PHA bins.
# Reduced chi-squared = 1.232 for 56 degrees of freedom
# Null hypothesis probability = 1.140749e-01
Photon flux (15-150 keV) in 1 sec: 3.25188 ( -0.31706 0.31788 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.47584e-07 ( -1.657e-08 1.7277e-08 ) ergs/cm2
Band function
Time interval is from -4.108 sec. to -3.108 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.49456 ( -0.531911 2.74019 )
beta : -10.0000 ( 10 1.77636e-15 )
Epeak [keV] : 14.8567 ( -8.10067 10.6601 )
Norm@50keV : 8.73536E-02 ( -0.050585 0.442564 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.99 using 59 PHA bins.
# Reduced chi-squared = 1.254 for 55 degrees of freedom
# Null hypothesis probability = 9.730352e-02
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.48549e-07 ( 0 0 ) ergs/cm2
Single BB
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.05133 (-0.653562 0.709924)
R^2/D10^2 : 5.96783 (-2.03314 3.15863)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.803e-08 7.390e-09
25- 50 6.671e-08 8.680e-09
50-150 1.135e-08 3.784e-09
15-150 1.261e-07 1.395e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 27.2191 (-4.79649 6.05532)
Norm : 29.1968 (-5.52421 7.15638)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.634e-08 6.840e-09
25- 50 6.088e-08 6.385e-09
50-150 2.923e-08 9.065e-09
15-150 1.464e-07 1.540e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.82931 (-3.29999 1.44353)
R1^2/D10^2 : 21.6899 (-12.9773 19726.9)
kT2 [keV] : 12.2078 (-4.60377 8.69438)
R2^2/D10^2 : 0.317852 (-0.289684 0.546799)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.584e-08 2.950e-08
25- 50 5.964e-08 2.752e-08
50-150 3.013e-08 1.747e-08
15-150 1.456e-07 7.380e-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: 2.91827 ( -0.0419793 0.0421967 )
Norm@50keV : 1.02588E-02 ( -0.000219854 0.000219225 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 101.32 using 59 PHA bins.
# Reduced chi-squared = 1.7776 for 57 degrees of freedom
# Null hypothesis probability = 2.750623e-04
Photon flux (15-150 keV) in 186.3 sec: 2.66020 ( -0.0731797 0.0739059 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.21423e-05 ( -4.58509e-07 4.60008e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.98416 ( -0.139836 -1.98416 )
Epeak [keV] : 0.755378 ( -0.0396667 0.0426595 )
Norm@50keV : 3.17934E-02 ( -0.000599668 0.00171338 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.35 using 59 PHA bins.
# Reduced chi-squared = 0.8813 for 56 degrees of freedom
# Null hypothesis probability = 7.228460e-01
Photon flux (15-150 keV) in 186.3 sec: 2.42041 ( -0.08858 0.0898 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.04889e-05 ( -5.82933e-07 5.8759e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.15906 ( -0.474237 0.83407 )
beta : -3.24211 ( -0.152861 0.111265 )
Epeak [keV] : 18.0697 ( -9.36781 4.83495 )
Norm@50keV : 0.108017 ( -0.0615772 0.279437 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.70 using 59 PHA bins.
# Reduced chi-squared = 0.6673 for 55 degrees of freedom
# Null hypothesis probability = 9.726882e-01
Photon flux (15-150 keV) in 186.3 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) = 8.95e-06
S(50-100 keV) = 4.74e-06
T90 vs. Hardness ratio plot
T90 = 116.075999975204 sec.
Hardness ratio (energy fluence ratio) = 0.529609
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.789581
Count Ratio (50-100 keV) / (15-25 keV) = 0.209737
Mask shadow pattern
IMX = -4.721665436117246E-01, IMY = 3.609669977645035E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 216.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 216.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 216.000000
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:
-10.000000 -4.292000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0755 -15.5633 3.9 44.0 -126.7 0.3650 2.9 7.2 Sco X-1
254.4754 35.3491 113.2 40.6 -46.1 0.0079 0.1 1.0 Her X-1
256.0454 -37.8627 14.8 50.5 -158.9 0.0716 0.8 3.0 4U 1700-377
256.3296 -36.5207 7.4 49.3 -158.1 0.1306 1.6 7.8 GX 349+2
263.1127 -24.6216 3.3 36.3 -154.2 0.1714 3.5 9.3 GX 1+4
264.8683 -44.4797 6.3 52.7 -170.5 0.1752 1.8 5.7 4U 1735-44
268.2346 -1.3025 34.9 17.2 -119.9 -0.0137 -0.3 12.0 SW J1753.5-0127
270.4336 -25.0254 5.9 33.2 -164.6 0.0861 2.0 8.7 GX 5-1
270.1579 -25.7644 16.7 33.9 -164.8 -0.0311 -0.7 7.9 GRS 1758-258
274.0063 -14.0363 190.6 21.8 -160.4 0.0022 0.1 0.0 GX 17+2
276.0540 -30.2349 3.4 36.4 -175.9 0.1735 3.4 10.4 H1820-303
285.1662 -24.7933 4.3 30.1 170.4 -0.1184 -2.7 10.4 HT1900.1-2455
288.7629 10.9357 11.8 7.2 31.2 0.0340 1.0 2.2 GRS 1915+105
299.7272 35.1712 2.8 33.1 16.0 0.1961 4.1 7.0 Cyg X-1
308.0222 41.0444 2.8 41.6 19.7 0.2804 4.1 6.8 Cyg X-3
326.1941 38.2859 15.5 50.4 35.4 0.1585 0.7 2.4 Cyg X-2
262.9523 -33.9575 5.8 44.1 -162.2 -0.1246 -2.0 7.6 GX 354-0
262.0032 -16.2030 0.3 30.7 -142.6 1.6378 34.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-13.699380 35.830000
37.000000 102.260000
103.000000 174.468000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9549 -15.6151 2.9 44.0 -126.7 7.0210 3.9 2.1 Sco X-1
254.2961 35.3377 267.0 40.6 -46.1 0.0475 0.0 7.9 Her X-1
256.0993 -37.9897 8.3 50.5 -159.1 1.9202 1.4 10.2 4U 1700-377
256.3524 -36.5351 7.0 49.2 -158.1 2.1292 1.7 7.8 GX 349+2
263.1490 -24.6309 6.4 36.2 -154.4 1.3922 1.8 10.3 GX 1+4
264.8777 -44.4373 15.9 52.7 -170.5 1.1213 0.7 5.8 4U 1735-44
268.5016 -1.5998 15.0 17.0 -121.3 -0.4609 -0.8 11.9 SW J1753.5-0127
270.3775 -25.1437 5.4 33.3 -164.7 1.4293 2.1 6.4 GX 5-1
270.4362 -25.7978 23.5 33.8 -165.3 0.3461 0.5 7.9 GRS 1758-258
274.1161 -14.0546 5.3 21.8 -160.8 1.1800 2.2 6.5 GX 17+2
276.0341 -30.5351 175.5 36.7 -176.1 0.0525 0.1 11.6 H1820-303
285.2046 -24.7867 0.0 30.1 170.3 -1.4307 -1.9 12.2 HT1900.1-2455
288.9533 10.9562 35.0 7.4 32.7 -0.1675 -0.3 9.2 GRS 1915+105
299.5898 35.2294 1.4 33.1 15.9 6.5678 8.2 1.7 Cyg X-1
308.0048 41.1437 0.0 41.7 19.6 1.2841 1.2 12.4 Cyg X-3
326.2852 38.3978 13.7 50.5 35.3 -2.6858 -0.8 7.0 Cyg X-2
263.0224 -33.7447 12.9 43.9 -162.2 0.8070 0.9 5.7 GX 354-0
323.3555 -5.9901 3.0 40.8 97.9 7.7030 3.8 ------ UNKNOWN
324.8528 3.6386 3.7 40.7 82.9 6.6599 3.1 ------ UNKNOWN
304.4843 44.9711 2.8 43.5 13.3 4.9677 4.1 ------ UNKNOWN
267.4969 -51.2032 3.5 58.3 -175.6 11.1147 3.3 ------ UNKNOWN
UNKNOWN
UNKNOWN
UNKNOWN
UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
-60.000000 -56.795800
-10.000000 35.830000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9544 -15.5449 5.8 44.1 -126.8 1.0191 2.0 5.9 Sco X-1
254.6243 35.3622 5.4 40.4 -46.0 0.6759 2.1 8.2 Her X-1
256.1157 -37.8691 4.8 50.5 -159.1 0.9418 2.4 6.3 4U 1700-377
256.3456 -36.4048 3.9 49.2 -158.1 1.0591 2.9 4.5 GX 349+2
262.9992 -24.8593 3.2 36.6 -154.5 -0.8001 -3.7 6.8 GX 1+4
264.7482 -44.3120 5.9 52.7 -170.4 0.8435 2.0 8.3 4U 1735-44
268.5247 -1.3821 9.7 17.0 -120.9 -0.2044 -1.2 10.3 SW J1753.5-0127
270.1434 -25.0727 5.2 33.4 -164.4 0.4339 2.2 7.7 GX 5-1
270.1863 -25.5672 0.0 33.8 -164.8 -0.2971 -1.5 12.3 GRS 1758-258
274.1341 -13.9588 4.0 21.8 -160.8 0.4450 2.9 8.8 GX 17+2
275.9128 -30.5175 15.0 36.8 -175.9 -0.1769 -0.8 9.1 H1820-303
285.0356 -24.9208 36.4 30.4 170.6 0.0693 0.3 0.0 HT1900.1-2455
288.7717 10.8434 16.5 7.1 32.5 -0.1068 -0.7 6.3 GRS 1915+105
299.6585 35.3068 1.7 33.2 15.9 1.5277 6.9 7.1 Cyg X-1
308.1297 40.9260 99.4 41.5 20.0 -0.0350 -0.1 1.8 Cyg X-3
326.0694 38.4886 151.1 50.4 35.1 0.0740 0.1 11.1 Cyg X-2
262.9518 -33.8720 15.2 44.1 -162.2 -0.2076 -0.8 2.9 GX 354-0
311.8317 55.1459 2.9 54.5 11.4 3.3352 4.0 ------ UNKNOWN
261.9470 -16.1147 0.2 30.7 -142.6 11.5204 58.7 ------ UNKNOWN
259.9468 1.0536 2.8 24.5 -107.2 0.8286 4.1 ------ UNKNOWN
249.5256 -31.7410 2.2 49.6 -148.5 2.0962 5.2 ------ UNKNOWN
Plot creation:
Sat Aug 26 19:40:11 EDT 2023