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
261.8044 -16.3657 0.0046 12.3 -61.7 9.8018 41.7 TRIG_01192233
------------------------------------------
Foreground time interval of the image:
-13.799 63.049 (delta_t = 76.849 [sec])
64.000 69.130 (delta_t = 5.130 [sec])
72.000 73.101 (delta_t = 1.101 [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
Multiple GTIs in the spectrum
tstart tstop
-46.944000 63.049200
64.000000 69.130000
72.000000 115.616000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.81955 ( -0.0647434 0.0655107 )
Norm@50keV : 4.43225E-03 ( -0.00015275 0.000151893 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 83.28 using 59 PHA bins.
# Reduced chi-squared = 1.461 for 57 degrees of freedom
# Null hypothesis probability = 1.316975e-02
Photon flux (15-150 keV) in 158.7 sec: 1.07252 ( -0.0364711 0.0369258 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.82345e-06 ( -2.04188e-07 2.04296e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-46.944000 63.049200
64.000000 69.130000
72.000000 115.616000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 1.46704E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 570.46 using 59 PHA bins.
# Reduced chi-squared = 10.187 for 56 degrees of freedom
# Null hypothesis probability = 2.643382e-86
Photon flux (15-150 keV) in 158.7 sec: 1.03792 ( -0.045575 0.04617 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.55596e-06 ( -2.9615e-07 2.98435e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-46.944000 63.049200
64.000000 69.130000
72.000000 115.616000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.75898 ( )
beta : -9.37167 ( )
Epeak [keV] : 18.8692 ( )
Norm@50keV : 9.81033E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 236.56 using 59 PHA bins.
# Reduced chi-squared = 4.3011 for 55 degrees of freedom
# Null hypothesis probability = 2.254951e-24
Photon flux (15-150 keV) in 158.7 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] : 8.08867 ( )
R^2/D10^2 : 0.878273 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 320.67 using 59 PHA bins.
# Reduced chi-squared = 5.6259 for 57 degrees of freedom
# Null hypothesis probability = 2.124991e-38
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.662e-06 8.173e-08
25- 50 2.965e-06 7.776e-08
50-150 8.073e-07 6.364e-08
15-150 5.435e-06 1.547e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 29.0198 (-1.69925 1.85283)
Norm : 7.87017 (-0.583873 0.636275)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.498e-06 1.135e-07
25- 50 2.802e-06 7.538e-08
50-150 1.468e-06 1.054e-07
15-150 6.768e-06 1.666e-07
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.04175 (-0.431515 0.445277)
R1^2/D10^2 : 5.96354 (-1.84413 3.00033)
kT2 [keV] : 15.0333 (-1.60012 2.0684)
R2^2/D10^2 : 3.68720E-02 (-0.0165712 0.0263601)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.656e-06 2.182e-07
25- 50 2.688e-06 1.722e-07
50-150 1.764e-06 2.492e-07
15-150 7.108e-06 4.618e-07
Peak spectrum fit
Power-law model
Time interval is from 114.636 sec. to 115.636 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.42627 ( -0.273545 0.300885 )
Norm@50keV : 7.76621E-03 ( -0.00159092 0.00155377 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.48 using 59 PHA bins.
# Reduced chi-squared = 0.9031 for 57 degrees of freedom
# Null hypothesis probability = 6.814430e-01
Photon flux (15-150 keV) in 1 sec: 1.45934 ( -0.192373 0.192474 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.62212e-08 ( -1.1797e-08 1.21636e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 114.636 sec. to 115.636 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.95482 ( )
Epeak [keV] : 3.60775 ( )
Norm@50keV : 1.51268E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.15 using 59 PHA bins.
# Reduced chi-squared = 0.9134 for 56 degrees of freedom
# Null hypothesis probability = 6.585962e-01
Photon flux (15-150 keV) in 1 sec: 1.43716 ( -0.20171 0.20041 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.30541e-08 ( -1.33445e-08 1.44833e-08 ) ergs/cm2
Band function
Time interval is from 114.636 sec. to 115.636 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.89888 ( 1.77304 1.77304 )
beta : -2.91432 ( 3.02211 0.852487 )
Epeak [keV] : 7.13910 ( -7.1379 48.0546 )
Norm@50keV : 1.64071E-02 ( -0.00471944 1.23521 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.09 using 59 PHA bins.
# Reduced chi-squared = 0.9289 for 55 degrees of freedom
# Null hypothesis probability = 6.246827e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Single BB
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.94452 (-1.18011 1.3544)
R^2/D10^2 : 1.58686 (-0.759558 1.51682)
(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 1.802e-08 4.505e-09
25- 50 3.115e-08 6.795e-09
50-150 7.995e-09 3.393e-09
15-150 5.717e-08 1.320e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 36.1172 (-10.0917 15.9525)
Norm : 10.0067 (-2.49976 3.54398)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.214e-08 4.230e-09
25- 50 2.782e-08 4.785e-09
50-150 1.917e-08 7.950e-09
15-150 6.913e-08 1.354e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.57583 (-1.87197 2.32947)
R1^2/D10^2 : 31.5816 (-27.4191 3448.62)
kT2 [keV] : 11.7110 (-3.07798 8.19692)
R2^2/D10^2 : 0.249802 (-0.221937 0.253906)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.347e-08 1.257e-08
25- 50 2.631e-08 1.408e-08
50-150 1.795e-08 1.095e-08
15-150 6.772e-08 3.457e-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: 2.83162 ( -0.081023 0.0823902 )
Norm@50keV : 4.31431E-03 ( -0.000201636 0.00020053 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 76.60 using 59 PHA bins.
# Reduced chi-squared = 1.344 for 57 degrees of freedom
# Null hypothesis probability = 4.265226e-02
Photon flux (15-150 keV) in 83.08 sec: 1.05273 ( -0.0412302 0.0416801 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.00579e-06 ( -1.28756e-07 1.28763e-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 : 1.50267E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 435.01 using 59 PHA bins.
# Reduced chi-squared = 7.7680 for 56 degrees of freedom
# Null hypothesis probability = 4.693249e-60
Photon flux (15-150 keV) in 83.08 sec: 1.02904 ( -0.04986 0.05021 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.89192e-06 ( -1.86357e-07 1.88359e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.429968 ( -1.10096 1.30909 )
beta : -2.94956 ( -0.177825 0.131845 )
Epeak [keV] : 17.7144 ( -6.53533 7.72606 )
Norm@50keV : 0.218667 ( -0.218111 2256.57 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.17 using 59 PHA bins.
# Reduced chi-squared = 1.258 for 55 degrees of freedom
# Null hypothesis probability = 9.470825e-02
Photon flux (15-150 keV) in 83.08 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) = 2.63e-06
S(50-100 keV) = 1.49e-06
T90 vs. Hardness ratio plot
T90 = 141.567999958992 sec.
Hardness ratio (energy fluence ratio) = 0.56654
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.677329
Count Ratio (50-100 keV) / (15-25 keV) = 0.185404
Mask shadow pattern
IMX = 1.030185550081842E-01, IMY = 1.913802299556957E-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:
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-13.799400 63.049200
64.000000 69.130000
72.000000 73.100590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8655 -15.7616 1.1 27.5 -80.0 3.3905 10.8 9.8 Sco X-1
255.9102 -37.8393 5.8 21.5 -138.9 -0.4743 -2.0 3.6 4U 1700-377
256.3723 -36.5498 4.5 20.4 -136.8 0.6155 2.6 8.2 GX 349+2
262.9164 -24.5929 5.9 9.7 -104.3 0.4557 2.0 10.5 GX 1+4
264.8081 -44.4703 6.0 23.2 -163.4 -0.4241 -1.9 3.0 4U 1735-44
268.2280 -1.4370 8.5 21.4 -12.4 -0.2959 -1.4 8.5 SW J1753.5-0127
270.1187 -25.0479 6.6 3.9 -133.6 0.3943 1.8 9.2 GX 5-1
270.1980 -25.5933 4.9 4.3 -139.6 -0.5265 -2.4 10.6 GRS 1758-258
273.8783 -14.1672 5.4 8.2 6.1 0.4767 2.2 10.8 GX 17+2
275.7925 -30.3282 6.4 8.3 165.5 0.3862 1.8 7.2 H1820-303
285.0650 -24.8819 7.0 11.2 106.9 -0.3704 -1.6 2.8 HT1900.1-2455
288.6989 10.9201 6.7 36.6 27.5 -0.7110 -1.7 6.1 GRS 1915+105
262.8756 -33.8417 14.0 14.7 -142.8 0.1862 0.8 5.7 GX 354-0
270.3088 32.6427 3.0 55.0 -1.7 3.4322 3.8 ------ UNKNOWN
261.8044 -16.3656 0.3 12.3 -61.7 9.8018 41.7 ------ UNKNOWN
228.2331 -23.2994 2.6 41.3 -99.1 4.0026 4.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
115.500600 215.180000
218.000000 243.053600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8362 -15.7666 0.7 16.3 -93.2 6.2216 16.6 11.2 Sco X-1
254.5522 35.4402 4.8 52.3 -10.5 -1.9436 -2.4 7.5 Her X-1
256.1782 -37.7102 0.0 21.9 -171.0 0.1181 0.3 12.1 4U 1700-377
256.2658 -36.3679 12.5 20.6 -170.2 -0.3218 -0.9 8.8 GX 349+2
262.8444 -24.8891 19.0 8.6 170.8 0.1931 0.6 12.4 GX 1+4
264.8680 -44.6006 6.3 28.3 172.4 0.6835 1.8 10.5 4U 1735-44
268.2246 -1.3846 4.0 16.3 20.5 0.9109 2.9 9.5 SW J1753.5-0127
270.1893 -25.1506 3.8 11.8 136.7 1.0074 3.0 6.7 GX 5-1
270.1380 -25.7515 6.1 12.2 138.8 0.6948 2.0 8.9 GRS 1758-258
273.9762 -14.1681 2.8 11.9 78.0 1.4913 4.1 8.1 GX 17+2
275.7533 -30.2313 0.0 18.8 136.9 0.4155 1.1 12.1 H1820-303
285.0432 -24.8800 8.2 23.3 112.3 -0.6311 -1.4 2.5 HT1900.1-2455
288.7834 10.8373 3.8 38.1 43.2 2.3084 3.0 6.6 GRS 1915+105
263.0065 -33.7643 5.4 17.4 173.7 -0.6987 -2.2 4.3 GX 354-0
253.3964 -74.0664 2.9 57.9 179.7 6.9602 4.0 ------ UNKNOWN
261.7889 -16.3699 0.3 0.0 -95.0 14.9329 41.6 ------ UNKNOWN
Plot creation:
Sat Sep 16 23:05:09 EDT 2023