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
245.0899 -16.3470 0.0071 16.3 -92.3 5.1787 26.9 TRIG_01192743
------------------------------------------
Foreground time interval of the image:
0.000 64.000 (delta_t = 64.000 [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 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
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 5.28346 ( -0.306265 0.31364 )
Norm@50keV : 4.16514E-04 ( -0.000100771 0.000122357 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.88 using 59 PHA bins.
# Reduced chi-squared = 1.244 for 57 degrees of freedom
# Null hypothesis probability = 1.022196e-01
Photon flux (15-150 keV) in 64 sec: 0.844338 ( -0.0697783 0.0705283 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.69319e-06 ( -1.25251e-07 1.25941e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 4.73257E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 443.49 using 59 PHA bins.
# Reduced chi-squared = 7.9195 for 56 degrees of freedom
# Null hypothesis probability = 1.132852e-61
Photon flux (15-150 keV) in 64 sec: 0.821287 ( -0.077626 0.076127 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.62833e-06 ( -7.26976e-08 1.43629e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.55617 ( )
beta : -9.37167 ( )
Epeak [keV] : 22.3079 ( )
Norm@50keV : 4.72013E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 358.76 using 59 PHA bins.
# Reduced chi-squared = 6.5229 for 55 degrees of freedom
# Null hypothesis probability = 3.722813e-46
Photon flux (15-150 keV) in 64 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] : 3.06670 (-0.205798 0.229162)
R^2/D10^2 : 95.1007 (-38.3759 64.0516)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 75.26 using 59 PHA bins.
# Reduced chi-squared = 1.320 for 57 degrees of freedom
# Null hypothesis probability = 5.300407e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.303e-06 1.702e-07
25- 50 2.049e-07 3.344e-08
50-150 3.937e-10 2.201e-10
15-150 1.508e-06 2.019e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 5.84424 (-0.586182 0.696665)
Norm : 109.340 (-36.287 54.7403)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.343e-06 1.616e-07
25- 50 2.369e-07 3.725e-08
50-150 2.550e-09 1.262e-09
15-150 1.582e-06 1.990e-07
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.03599 (-0.205769 0.22919)
R1^2/D10^2 : 0.181906 (-38.3824 64.045)
kT2 [keV] : 2.69609 (-1.52602 0.354356)
R2^2/D10^2 : 212.473 (-114.28 96302.8)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 5.28346 ( -0.306265 0.31364 )
Norm@50keV : 4.16514E-04 ( -0.000100771 0.000122357 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.88 using 59 PHA bins.
# Reduced chi-squared = 1.244 for 57 degrees of freedom
# Null hypothesis probability = 1.022196e-01
Photon flux (15-150 keV) in 64 sec: 0.844338 ( -0.0697783 0.0705283 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.69319e-06 ( -1.25251e-07 1.25941e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 4.73257E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 443.49 using 59 PHA bins.
# Reduced chi-squared = 7.9195 for 56 degrees of freedom
# Null hypothesis probability = 1.132852e-61
Photon flux (15-150 keV) in 64 sec: 0.821287 ( -0.077626 0.076127 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.62833e-06 ( -7.26976e-08 1.43629e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.55617 ( )
beta : -9.37167 ( )
Epeak [keV] : 22.3079 ( )
Norm@50keV : 4.72013E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 358.76 using 59 PHA bins.
# Reduced chi-squared = 6.5229 for 55 degrees of freedom
# Null hypothesis probability = 3.722813e-46
Photon flux (15-150 keV) in 64 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.06069e-06 ( 0 0 ) ergs/cm2
Single BB
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 3.06670 (-0.205798 0.229162)
R^2/D10^2 : 95.1007 (-38.3759 64.0516)
(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 1.303e-06 1.760e-07
25- 50 2.049e-07 3.341e-08
50-150 3.937e-10 2.259e-10
15-150 1.508e-06 2.368e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 5.84424 (-0.586182 0.696665)
Norm : 109.340 (-36.287 54.7403)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.343e-06 1.562e-07
25- 50 2.369e-07 4.003e-08
50-150 2.550e-09 1.326e-09
15-150 1.582e-06 2.016e-07
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.03599 (-0.205769 0.22919)
R1^2/D10^2 : 0.181906 (-38.3824 64.045)
kT2 [keV] : 2.69609 (-1.52602 0.354356)
R2^2/D10^2 : 212.473 (-114.28 96302.8)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
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: 5.28346 ( -0.306265 0.31364 )
Norm@50keV : 4.16514E-04 ( -0.000100771 0.000122357 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.88 using 59 PHA bins.
# Reduced chi-squared = 1.244 for 57 degrees of freedom
# Null hypothesis probability = 1.022196e-01
Photon flux (15-150 keV) in 64 sec: 0.844338 ( -0.0697783 0.0705283 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.69319e-06 ( -1.25251e-07 1.25941e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 4.73257E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 443.49 using 59 PHA bins.
# Reduced chi-squared = 7.9195 for 56 degrees of freedom
# Null hypothesis probability = 1.132852e-61
Photon flux (15-150 keV) in 64 sec: 0.821287 ( -0.077626 0.076127 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.62833e-06 ( -7.26976e-08 1.43629e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.55617 ( )
beta : -9.37167 ( )
Epeak [keV] : 22.3079 ( )
Norm@50keV : 4.72013E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 358.76 using 59 PHA bins.
# Reduced chi-squared = 6.5229 for 55 degrees of freedom
# Null hypothesis probability = 3.722813e-46
Photon flux (15-150 keV) in 64 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) = 2.84e-07
S(50-100 keV) = 2.92e-08
T90 vs. Hardness ratio plot
T90 = 64 sec.
Hardness ratio (energy fluence ratio) = 0.102817
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.160154
Count Ratio (50-100 keV) / (15-25 keV) = -0.00206673
Mask shadow pattern
IMX = -1.179177674754111E-02, IMY = 2.924878092395844E-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:
-119.000000 -114.765700
-114.000000 -75.690000
-75.000000 -74.960000
-65.000000 -64.940000
-60.000000 100.730000
104.000000 104.010000
116.000000 144.644000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8418 -15.4803 0.0 16.6 -89.4 0.4080 0.7 12.5 Sco X-1
254.3761 35.2891 7.4 52.7 -9.6 -2.5174 -1.6 5.1 Her X-1
256.0312 -37.6971 7.9 21.5 -168.5 -0.8430 -1.5 9.1 4U 1700-377
256.3374 -36.4960 26.6 20.3 -168.2 -0.2425 -0.4 6.4 GX 349+2
263.0100 -24.7466 29.7 7.9 172.4 -0.2248 -0.4 0.1 GX 1+4
264.8737 -44.2995 13.0 27.5 174.0 -0.5501 -0.9 10.6 4U 1735-44
268.2233 -1.2995 0.0 16.7 20.0 0.8471 1.6 12.6 SW J1753.5-0127
270.3211 -25.2268 7.4 11.3 137.2 -0.9045 -1.6 9.1 GX 5-1
270.4649 -25.5895 0.0 11.7 138.0 -0.4850 -0.8 12.7 GRS 1758-258
273.8473 -13.9054 5.6 11.7 75.2 -1.2119 -2.1 12.1 GX 17+2
275.9500 -30.2178 13.7 18.4 137.3 0.4974 0.8 9.0 H1820-303
285.0371 -24.9302 7.1 22.8 112.8 1.2998 1.6 0.6 HT1900.1-2455
288.8194 10.8064 9.7 38.3 43.8 -1.6934 -1.2 8.4 GRS 1915+105
263.1664 -33.6875 0.0 16.8 175.3 -0.2060 -0.4 12.5 GX 354-0
281.0942 -23.3989 3.1 19.0 111.5 2.6986 3.7 ------ UNKNOWN
265.7283 -61.8082 2.8 45.0 175.9 4.3702 4.1 ------ UNKNOWN
262.0918 -16.9355 0.5 0.1 -164.5 15.3942 24.2 ------ UNKNOWN
256.0071 -72.6722 2.4 55.9 -179.5 9.8210 4.9 ------ UNKNOWN
245.0875 -16.3484 0.4 16.3 -92.3 18.8782 32.8 ------ UNKNOWN
213.8777 -48.9000 2.0 50.4 -142.2 8.3627 5.7 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 64.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9874 -15.7859 9.7 16.5 -90.4 -0.2366 -1.2 8.8 Sco X-1
254.3620 35.4815 5.8 52.9 -9.6 -1.1160 -2.0 9.6 Her X-1
256.0283 -37.6969 12.0 21.5 -168.5 -0.1850 -0.9 9.1 4U 1700-377
256.6216 -36.2858 0.0 20.0 -168.7 -0.1688 -0.9 12.2 GX 349+2
263.0126 -24.7464 46.8 7.9 172.4 -0.0468 -0.2 0.2 GX 1+4
264.8361 -44.4232 15.8 27.6 174.1 -0.1514 -0.7 4.3 4U 1735-44
268.2233 -1.2995 0.0 16.7 20.0 0.3655 2.0 12.6 SW J1753.5-0127
270.1224 -24.9349 144.0 11.0 136.8 0.0150 0.1 12.3 GX 5-1
270.2445 -25.6853 22.5 11.6 139.0 -0.0969 -0.5 4.7 GRS 1758-258
273.8469 -13.8925 0.0 11.7 75.1 -0.2575 -1.4 12.7 GX 17+2
275.9051 -30.2214 5.3 18.3 137.4 0.4305 2.2 8.8 H1820-303
284.8676 -24.8755 15.3 22.7 112.8 0.1981 0.8 9.6 HT1900.1-2455
288.8748 10.7997 16.8 38.3 43.8 -0.3006 -0.7 9.8 GRS 1915+105
262.9856 -33.8349 32.3 17.0 175.8 0.0629 0.4 0.2 GX 354-0
262.0896 -16.9341 0.6 0.1 -160.7 4.2552 20.8 ------ UNKNOWN
250.3995 -39.7626 2.4 25.0 -160.1 0.9341 4.8 ------ UNKNOWN
245.0898 -16.3464 0.5 16.3 -92.3 5.0938 26.5 ------ UNKNOWN
230.8963 -5.0631 2.3 32.8 -74.2 1.4536 5.0 ------ UNKNOWN
231.1413 15.9475 2.4 44.8 -46.3 2.0813 4.9 ------ UNKNOWN
232.9900 30.6812 2.3 55.2 -32.4 5.3204 5.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
Plot creation:
Wed Sep 27 12:57:24 EDT 2023