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
245.0066 -16.0433 0.0055 17.1 -16.6 8.8102 34.9 TRIG_01125354
------------------------------------------
Foreground time interval of the image:
-16.799 71.301 (delta_t = 88.100 [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
-223.300000 212.862100
214.000000 248.770000
250.000000 682.930000
684.000000 720.249100
721.000000 840.416000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 6.72551 ( -0.187932 0.18563 )
Norm@50keV : 1.10447E-04 ( -1.51961e-05 1.71993e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 100.18 using 59 PHA bins.
# Reduced chi-squared = 1.7575 for 57 degrees of freedom
# Null hypothesis probability = 3.608436e-04
Photon flux (15-150 keV) in 1060 sec: 0.950805 ( -0.0643408 0.0654109 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.9343e-05 ( -1.83746e-06 1.86485e-06 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-223.300000 212.862100
214.000000 248.770000
250.000000 682.930000
684.000000 720.249100
721.000000 840.416000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 1.44836E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 1281.29 using 59 PHA bins.
# Reduced chi-squared = 22.8802 for 56 degrees of freedom
# Null hypothesis probability = 3.397001e-231
Photon flux (15-150 keV) in 1060 sec: 0.837898 ( -0.081208 0.080222 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.62101e-05 ( -2.31059e-06 2.27921e-06 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-223.300000 212.862100
214.000000 248.770000
250.000000 682.930000
684.000000 720.249100
721.000000 840.416000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -7.75654 ( 4.00328 7.75654 )
beta : -6.71073 ( -0.196095 0.178075 )
Epeak [keV] : 394.540 ( -394.54 -394.54 )
Norm@50keV : 1.51956E-02 ( -0.00215164 0.00225337 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 100.20 using 59 PHA bins.
# Reduced chi-squared = 1.8217 for 55 degrees of freedom
# Null hypothesis probability = 1.897198e-04
Photon flux (15-150 keV) in 1060 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] : 2.67502 (-0.0935345 0.100549)
R^2/D10^2 : 237.726 (-67.214 91.967)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.68 using 59 PHA bins.
# Reduced chi-squared = 1.187 for 57 degrees of freedom
# Null hypothesis probability = 1.572565e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.229e-05 2.221e-06
25- 50 2.137e-06 1.521e-07
50-150 1.281e-09 4.312e-10
15-150 2.442e-05 2.173e-06
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 4.39577 (-0.208411 0.229314)
Norm : 321.441 (-76.3307 98.4088)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.431e-05 2.178e-06
25- 50 2.261e-06 1.701e-07
50-150 5.868e-09 1.917e-09
15-150 2.657e-05 2.035e-06
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.67971 (-0.0974159 0.0971116)
R1^2/D10^2 : 234.132 (-64.41 93.7612)
kT2 [keV] : 199.363 (-199.363 -199.363)
R2^2/D10^2 : 4.08000E-16 (-1.48596e-17 0.000500611)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.221e-05 1.924e-06
25- 50 2.145e-06 1.627e-07
50-150 1.307e-09 4.571e-10
15-150 2.436e-05 2.215e-06
Peak spectrum fit
Power-law model
Time interval is from -200.496 sec. to -199.496 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 4.87527 ( -0.827423 0.9718 )
Norm@50keV : 1.02659E-03 ( -0.00066932 0.00126662 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.63 using 59 PHA bins.
# Reduced chi-squared = 1.186 for 57 degrees of freedom
# Null hypothesis probability = 1.584009e-01
Photon flux (15-150 keV) in 1 sec: 1.40702 ( -0.277632 0.278062 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.55151e-08 ( -1.02083e-08 1.08742e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -200.496 sec. to -199.496 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 1.70746E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 115.12 using 59 PHA bins.
# Reduced chi-squared = 2.0557 for 56 degrees of freedom
# Null hypothesis probability = 5.650281e-06
Photon flux (15-150 keV) in 1 sec: 1.42883 1.43030 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.91073e-15 ( 0 0 ) ergs/cm2
Band function
Time interval is from -200.496 sec. to -199.496 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.93650 ( 2.87468 8.9365 )
beta : -4.87526 ( -0.973007 0.827443 )
Epeak [keV] : 169.587 ( -169.587 -169.587 )
Norm@50keV : 0.139528 ( -0.0909627 0.172151 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.63 using 59 PHA bins.
# Reduced chi-squared = 1.230 for 55 degrees of freedom
# Null hypothesis probability = 1.180075e-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] : 2.71437 (-0.419495 0.50725)
R^2/D10^2 : 390.428 (-390.44 879.892)
(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 3.814e-08 2.131e-08
25- 50 3.866e-09 2.468e-09
50-150 2.646e-12 2.956e-12
15-150 4.201e-08 2.319e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 5.33694 (-1.30011 2.01334)
Norm : 256.098 (-158.233 451.902)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.691e-08 2.077e-08
25- 50 5.388e-09 3.321e-09
50-150 3.842e-11 4.287e-11
15-150 4.234e-08 2.323e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.53387 (-0.453386 0.511734)
R1^2/D10^2 : 580.256 (-290.627 1790.45)
kT2 [keV] : 11.9581 (-6.39869 184.024)
R2^2/D10^2 : 6.90770E-02 (-0.0674503 1.10087)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.717e-08 2.056e-08
25- 50 9.268e-09 5.365e-09
50-150 5.616e-09 5.695e-09
15-150 5.205e-08 2.812e-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: 6.19421 ( -0.285727 0.286114 )
Norm@50keV : 2.10500E-04 ( -4.70393e-05 5.75943e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.56 using 59 PHA bins.
# Reduced chi-squared = 0.8871 for 57 degrees of freedom
# Null hypothesis probability = 7.136839e-01
Photon flux (15-150 keV) in 88.1 sec: 1.05354 ( -0.0851536 0.0860692 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.76203e-06 ( -2.03282e-07 2.05101e-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 : 3.42819E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 570.46 using 59 PHA bins.
# Reduced chi-squared = 10.187 for 56 degrees of freedom
# Null hypothesis probability = 2.643290e-86
Photon flux (15-150 keV) in 88.1 sec: 1.00048 ( -0.099733 0.09744 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.61496e-06 ( -2.37597e-07 2.32249e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.51347 ( 5.91767 8.51347 )
beta : -6.21943 ( -0.268479 0.305091 )
Epeak [keV] : 320.284 ( -320.284 -320.284 )
Norm@50keV : 2.79646E-02 ( -0.00605636 0.00818692 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.59 using 59 PHA bins.
# Reduced chi-squared = 0.9197 for 55 degrees of freedom
# Null hypothesis probability = 6.438260e-01
Photon flux (15-150 keV) in 88.1 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) = 2.53e-06
S(50-100 keV) = 9.55e-08
T90 vs. Hardness ratio plot
T90 = 1029.10399997234 sec.
Hardness ratio (energy fluence ratio) = 0.037747
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.0770089
Count Ratio (50-100 keV) / (15-25 keV) = -0.00391745
Mask shadow pattern
IMX = 2.953377431095035E-01, IMY = 8.820660980388671E-02
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:
-16.799400 71.300600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.3158 -60.6230 14.4 56.3 -148.8 -1.2344 -0.8 0.0 Cen X-3
186.6247 -62.7442 4.4 48.6 -151.4 1.3356 2.6 1.8 GX 301-2
245.0944 -15.4998 4.8 17.6 -16.0 -0.5968 -2.4 10.7 Sco X-1
255.7980 -37.7254 5.9 7.5 128.7 -0.4616 -1.9 11.4 4U 1700-377
256.6221 -36.5707 0.0 7.4 118.5 0.1615 0.6 12.6 GX 349+2
263.1630 -24.6104 87.5 15.0 56.4 0.0357 0.1 11.7 GX 1+4
264.5550 -44.6147 0.0 17.0 134.6 -0.4106 -1.6 12.7 4U 1735-44
268.4152 -1.4626 5.9 36.4 30.4 -0.8360 -2.0 2.9 SW J1753.5-0127
270.4008 -25.2119 8.9 20.3 69.5 -0.3971 -1.3 10.2 GX 5-1
270.3676 -25.6447 4.7 20.1 70.6 -0.9227 -3.0 6.9 GRS 1758-258
273.8430 -13.9045 4.3 29.6 52.1 -1.1119 -2.7 12.4 GX 17+2
275.8279 -30.3492 5.2 23.1 87.1 -0.8045 -2.2 5.1 H1820-303
284.8834 -24.8879 4.3 32.4 81.3 1.4695 2.7 8.5 HT1900.1-2455
262.9889 -33.8347 215.0 11.9 94.7 0.0146 0.1 0.0 GX 354-0
268.3397 -21.1405 2.9 20.9 56.8 1.1232 4.0 ------ UNKNOWN
238.0844 -51.6871 2.7 20.4 -164.7 1.0111 4.2 ------ UNKNOWN
241.1772 5.2779 2.4 38.8 -16.3 1.6106 4.8 ------ UNKNOWN
240.8721 15.7849 2.7 49.2 -14.2 2.0499 4.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
122.700600 212.862100
214.000000 248.770000
250.000000 682.930000
684.000000 720.249100
721.000000 963.042300
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0149 -15.7953 1.8 0.2 -7.4 11.0298 6.4 9.5 Sco X-1
254.4230 35.3290 9.6 52.1 3.0 -4.8266 -1.2 1.9 Her X-1
255.9322 -37.6972 5.8 23.7 151.4 -3.7621 -2.0 9.2 4U 1700-377
256.5015 -36.5697 6.6 22.9 149.0 3.2983 1.8 9.4 GX 349+2
262.8475 -24.6727 6.3 18.8 113.5 -4.0694 -1.8 9.8 GX 1+4
264.8686 -44.3858 11.9 32.9 146.7 2.7736 1.0 6.6 4U 1735-44
268.5125 -1.6091 0.0 27.3 53.7 -5.7416 -2.0 12.8 SW J1753.5-0127
270.1732 -24.9487 10.2 25.1 108.1 -3.1577 -1.1 9.9 GX 5-1
270.1386 -25.8178 8.4 25.4 110.1 -3.8920 -1.4 9.9 GRS 1758-258
273.9948 -14.0602 5.8 28.0 83.1 6.5403 2.0 1.6 GX 17+2
275.8951 -30.4135 12.8 31.7 115.7 -3.2824 -0.9 3.2 H1820-303
285.0774 -24.8833 13.2 38.4 103.2 -4.1331 -0.9 3.2 HT1900.1-2455
262.9939 -33.6907 7.0 24.0 134.0 3.9506 1.6 8.6 GX 354-0
256.9349 -5.2820 3.0 15.9 41.9 7.1802 3.8 ------ UNKNOWN
248.8371 -52.0635 3.1 36.2 169.3 9.4962 3.8 ------ UNKNOWN
246.9566 37.8267 2.4 53.9 -4.9 17.7966 4.7 ------ UNKNOWN
238.5875 22.2402 2.9 38.8 -16.3 10.4773 4.0 ------ UNKNOWN
229.6372 -24.9116 2.4 16.9 -130.9 8.6545 4.7 ------ UNKNOWN
220.1268 33.8696 2.8 55.3 -31.9 43.6456 4.2 ------ UNKNOWN
211.2974 17.4733 2.6 47.2 -53.0 37.9858 4.4 ------ UNKNOWN
195.3303 -34.4836 3.2 48.0 -129.0 32.9911 3.6 ------ UNKNOWN
UNKNOWN
UNKNOWN
Plot creation:
Tue Sep 27 14:39:04 EDT 2022