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
299.4083 +35.1917 0.0617 31.7 -126.8 3.6646 3.1 TRIG_01108515
------------------------------------------
Foreground time interval of the image:
-220.336 -56.917 (delta_t = 163.419 [sec])
-49.000 27.010 (delta_t = 76.010 [sec])
28.000 36.840 (delta_t = 8.840 [sec])
39.000 70.601 (delta_t = 31.601 [sec])
Background time interval of the image:
-239.000 -220.336 (delta_t = 18.664 [sec])
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 64.000000
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 64.000000
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 64.000000
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
-220.336000 -56.917000
-49.000000 27.010000
28.000000 36.840000
39.000000 160.076000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.78677 ( -0.082472 0.0833989 )
Norm@50keV : 2.30123E-03 ( -0.000108513 0.000107985 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.21 using 59 PHA bins.
# Reduced chi-squared = 1.162 for 57 degrees of freedom
# Null hypothesis probability = 1.889213e-01
Photon flux (15-150 keV) in 369.3 sec: 0.315493 ( -0.0146341 0.0146692 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.82768e-06 ( -3.77583e-07 3.7929e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-220.336000 -56.917000
-49.000000 27.010000
28.000000 36.840000
39.000000 160.076000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.31137 ( -0.373467 0.344316 )
Epeak [keV] : 69.6318 ( -12.8078 55.1592 )
Norm@50keV : 4.04063E-03 ( -0.00132661 0.00220176 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.51 using 59 PHA bins.
# Reduced chi-squared = 1.081 for 56 degrees of freedom
# Null hypothesis probability = 3.162424e-01
Photon flux (15-150 keV) in 369.3 sec: 0.306147 ( -0.015975 0.016029 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.51053e-06 ( -4.3991e-07 4.41277e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-220.336000 -56.917000
-49.000000 27.010000
28.000000 36.840000
39.000000 160.076000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.26473 ( -0.372214 1.74566 )
beta : -2.24929 ( 2.26023 0.43125 )
Epeak [keV] : 66.4573 ( -35.5558 43.2407 )
Norm@50keV : 4.29546E-03 ( -0.00138346 0.0696698 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.14 using 59 PHA bins.
# Reduced chi-squared = 1.094 for 55 degrees of freedom
# Null hypothesis probability = 2.949178e-01
Photon flux (15-150 keV) in 369.3 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.50997e-06 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 12.8203 ( )
R^2/D10^2 : 5.76035E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 153.53 using 59 PHA bins.
# Reduced chi-squared = 2.6935 for 57 degrees of freedom
# Null hypothesis probability = 8.564961e-11
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.416e-07 6.518e-08
25- 50 2.516e-06 1.370e-07
50-150 2.593e-06 2.565e-07
15-150 5.850e-06 3.342e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 99.9812 (-13.7711 32.4913)
Norm : 1.38616 (-0.110184 0.0811374)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.338e-06 1.200e-07
25- 50 2.313e-06 1.379e-07
50-150 3.749e-06 1.024e-06
15-150 7.400e-06 1.067e-06
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.26447 (-1.03804 1.17692)
R1^2/D10^2 : 0.504605 (-0.219965 0.475669)
kT2 [keV] : 20.6145 (-2.72529 4.20335)
R2^2/D10^2 : 7.61218E-03 (-0.00398425 0.00600531)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.259e-06 2.513e-07
25- 50 2.284e-06 3.700e-07
50-150 3.777e-06 6.782e-07
15-150 7.319e-06 1.065e-06
Peak spectrum fit
Power-law model
Time interval is from 16.164 sec. to 17.164 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.05476 ( -0.486754 0.592945 )
Norm@50keV : 5.64363E-03 ( -0.00219862 0.00207095 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.15 using 59 PHA bins.
# Reduced chi-squared = 0.9851 for 57 degrees of freedom
# Null hypothesis probability = 5.070142e-01
Photon flux (15-150 keV) in 1 sec: 0.868575 ( -0.246016 0.246018 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.22296e-08 ( -1.78129e-08 1.87807e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 16.164 sec. to 17.164 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.30058 ( -2.78029 0.835622 )
Epeak [keV] : 39.3722 ( )
Norm@50keV : 1.54088E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.64 using 59 PHA bins.
# Reduced chi-squared = 0.9936 for 56 degrees of freedom
# Null hypothesis probability = 4.883638e-01
Photon flux (15-150 keV) in 1 sec: 0.856922 ( -0.246227 0.246948 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.97398e-08 ( -1.76782e-08 1.96113e-08 ) ergs/cm2
Band function
Time interval is from 16.164 sec. to 17.164 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.28402 ( -6.01084 6.51847 )
beta : -10.0000 ( 10 1.77636e-15 )
Epeak [keV] : 39.4762 ( -30.7088 -39.4762 )
Norm@50keV : 1.57316E-02 ( -0.0157316 0.8181 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.64 using 59 PHA bins.
# Reduced chi-squared = 1.012 for 55 degrees of freedom
# Null hypothesis probability = 4.504421e-01
Photon flux (15-150 keV) in 1 sec: 0.867371 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 4.99222e-08 ( -4.99152e-08 -1.79563e-08 ) ergs/cm2
Single BB
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.48404 (-3.0406 4.66929)
R^2/D10^2 : 0.501967 (-0.499993 1.70645)
(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 9.011e-09 5.560e-09
25- 50 2.075e-08 1.247e-08
50-150 9.269e-09 6.740e-09
15-150 3.903e-08 2.382e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 61.7708 (-33.4413 123.634)
Norm : 4.55794 (-1.66479 2.89657)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.151e-08 4.904e-09
25- 50 1.767e-08 1.051e-08
50-150 2.059e-08 1.629e-08
15-150 4.977e-08 2.770e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.33345 (-5.04921 4.86192)
R1^2/D10^2 : 3.07371 (-2.75472 -3.06981)
kT2 [keV] : 17.7554 (-17.7127 139.556)
R2^2/D10^2 : 3.21470E-02 (-0.0326105 0.478056)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.165e-08 7.210e-09
25- 50 1.667e-08 8.440e-09
50-150 2.167e-08 1.386e-08
15-150 4.999e-08 2.764e-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: 1.74693 ( -0.0951535 0.0963896 )
Norm@50keV : 2.32168E-03 ( -0.000128039 0.000127309 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.62 using 59 PHA bins.
# Reduced chi-squared = 1.046 for 57 degrees of freedom
# Null hypothesis probability = 3.804714e-01
Photon flux (15-150 keV) in 279.9 sec: 0.313577 ( -0.0168358 0.0168712 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.99736e-06 ( -3.42052e-07 3.43997e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.29141 ( -0.422446 0.3862 )
Epeak [keV] : 75.1087 ( -16.4625 127.621 )
Norm@50keV : 3.98182E-03 ( -0.00143232 0.00252789 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.52 using 59 PHA bins.
# Reduced chi-squared = 0.9913 for 56 degrees of freedom
# Null hypothesis probability = 4.931576e-01
Photon flux (15-150 keV) in 279.9 sec: 0.305227 ( -0.018148 0.018191 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.77123e-06 ( -3.91356e-07 3.9256e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.29139 ( -0.299454 0.297278 )
beta : -9.51402 ( 9.51402 19.514 )
Epeak [keV] : 75.0943 ( -14.527 127.788 )
Norm@50keV : 3.98140E-03 ( -0.000204288 0.00253119 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.52 using 59 PHA bins.
# Reduced chi-squared = 1.009 for 55 degrees of freedom
# Null hypothesis probability = 4.551956e-01
Photon flux (15-150 keV) in 279.9 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.66576e-06 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 2.19e-06
S(50-100 keV) = 2.54e-06
T90 vs. Hardness ratio plot
T90 = 293.451999902725 sec.
Hardness ratio (energy fluence ratio) = 1.15982
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.23549
Count Ratio (50-100 keV) / (15-25 keV) = 0.80718
Mask shadow pattern
IMX = -3.697836793257816E-01, IMY = 4.945643293723582E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
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:
-239.000000 -220.336000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4768 35.4994 4.8 41.1 171.6 0.2475 2.4 9.5 Her X-1
263.1998 -24.7474 6.5 37.9 66.2 -0.3199 -1.8 10.4 GX 1+4
268.3669 -1.6223 8.3 19.0 98.1 -0.1005 -1.4 10.2 SW J1753.5-0127
270.4233 -25.0112 6.0 34.5 56.6 -0.2247 -1.9 8.6 GX 5-1
270.2382 -25.9112 0.0 35.4 56.1 -0.1938 -1.5 10.7 GRS 1758-258
273.7960 -13.9879 60.6 23.3 62.1 0.0147 0.2 12.6 GX 17+2
275.9590 -30.2081 7.1 37.5 45.6 0.2172 1.6 9.7 H1820-303
285.0738 -24.9810 11.8 31.1 32.8 0.0834 1.0 4.2 HT1900.1-2455
288.8566 10.8056 7.8 5.6 -115.2 -0.0905 -1.5 9.1 GRS 1915+105
299.5159 35.1507 1.6 31.7 -126.6 0.6140 7.2 4.8 Cyg X-1
308.2033 40.8414 8.2 40.1 -121.7 0.1986 1.4 7.9 Cyg X-3
253.1674 -15.0952 2.9 38.6 88.0 0.9131 4.0 ------ UNKNOWN
241.9374 16.6897 2.2 44.1 139.4 0.9933 5.3 ------ UNKNOWN
242.1223 43.2210 2.4 53.3 172.8 1.0405 4.8 ------ UNKNOWN
317.8827 -35.8637 2.0 51.7 -1.7 0.8189 5.6 ------ UNKNOWN
259.4065 57.7413 2.6 55.6 -165.0 0.9084 4.5 ------ UNKNOWN
293.7963 44.5199 2.3 39.1 -139.2 0.4857 5.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-220.336000 -56.917000
-49.000000 27.010000
28.000000 36.840000
39.000000 70.600630
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4811 35.4954 5.1 41.1 171.6 -3.1571 -2.3 9.2 Her X-1
263.1182 -24.7823 5.5 37.9 66.2 5.3355 2.1 6.3 GX 1+4
268.3826 -1.6122 7.0 19.0 98.1 1.6582 1.7 9.6 SW J1753.5-0127
270.3994 -24.9789 7.7 34.5 56.7 2.5231 1.5 8.7 GX 5-1
270.4197 -25.7037 7.9 35.1 56.1 -2.5817 -1.5 6.8 GRS 1758-258
274.1236 -14.1342 12.2 23.3 61.2 1.0400 0.9 9.0 GX 17+2
275.9222 -30.3717 278.2 37.7 45.5 0.0780 0.0 0.3 H1820-303
284.9299 -25.0182 5.0 31.1 33.0 -2.8001 -2.3 8.2 HT1900.1-2455
288.8356 10.7932 4.4 5.6 -115.3 2.2629 2.6 9.4 GRS 1915+105
299.4082 35.1917 3.7 31.7 -126.8 3.6646 3.1 8.9 Cyg X-1
308.2177 40.8443 4.9 40.1 -121.7 -4.6120 -2.3 8.1 Cyg X-3
245.5421 25.1738 2.7 42.9 152.5 8.0483 4.3 ------ UNKNOWN
266.3613 1.4261 2.0 19.9 108.8 5.4915 5.9 ------ UNKNOWN
259.0764 52.2148 2.1 51.1 -169.1 11.7251 5.5 ------ UNKNOWN
285.9348 55.7411 2.2 49.6 -148.2 12.4872 5.3 ------ UNKNOWN
331.1526 -9.3159 1.9 47.8 -39.9 13.7867 5.9 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
144.900600 424.960000
426.000000 458.210000
459.000000 521.550000
525.000000 600.500000
601.000000 950.030000
951.000000 956.400000
959.000000 959.230000
960.000000 963.120000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3791 35.4362 6.4 36.5 145.0 -4.4796 -1.8 6.8 Her X-1
288.9950 10.9373 7.8 26.0 65.1 2.7248 1.5 11.6 GRS 1915+105
299.5826 35.2009 0.4 0.1 -77.1 34.7858 28.5 0.4 Cyg X-1
308.1069 41.0158 2.9 9.0 -92.3 4.8404 4.0 3.8 Cyg X-3
326.1601 38.2939 4.8 21.5 -65.2 3.5069 2.4 1.8 Cyg X-2
297.9893 -9.8719 2.4 45.1 43.1 12.9594 4.7 ------ UNKNOWN
218.8258 53.8127 2.6 57.1 177.1 21.6574 4.3 ------ UNKNOWN
292.8293 40.8415 2.5 7.7 -179.6 5.5303 4.7 ------ UNKNOWN
308.0015 37.6563 1.7 7.3 -71.5 7.9653 6.7 ------ UNKNOWN
225.0008 64.8780 3.5 52.1 -170.2 13.5046 3.3 ------ UNKNOWN
336.3301 5.1123 2.7 45.3 -16.1 8.6335 4.2 ------ UNKNOWN
239.7100 68.7543 2.7 46.7 -164.4 11.7452 4.3 ------ UNKNOWN
Plot creation:
Tue May 31 20:21:57 EDT 2022