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
261.9013 -15.1374 0.0063 1.1 -4.2 5.9835 30.4 TRIG_01192490
------------------------------------------
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: 2.94285 ( -0.107674 0.110557 )
Norm@50keV : 3.21245E-03 ( -0.000220983 0.000220606 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.47 using 59 PHA bins.
# Reduced chi-squared = 0.9906 for 57 degrees of freedom
# Null hypothesis probability = 4.951013e-01
Photon flux (15-150 keV) in 64 sec: 0.847738 ( -0.0401648 0.0405293 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.40755e-06 ( -1.01245e-07 1.01469e-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: 1.98434 ( -0.203147 -1.98434 )
Epeak [keV] : 0.592729 ( -0.0783067 0.0937509 )
Norm@50keV : 1.22758E-02 ( -0.000567854 0.00175046 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.81 using 59 PHA bins.
# Reduced chi-squared = 1.086 for 56 degrees of freedom
# Null hypothesis probability = 3.067725e-01
Photon flux (15-150 keV) in 64 sec: 0.834042 ( -0.047402 0.047264 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.34877e-06 ( -1.46336e-07 1.44704e-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 : -1.67906 ( -0.973861 0.69107 )
beta : -3.10888 ( -0.259471 0.188653 )
Epeak [keV] : 7.42441 ( -2.97926 11.3976 )
Norm@50keV : 2.35533E-02 ( -0.0117086 3874.68 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.35 using 59 PHA bins.
# Reduced chi-squared = 0.9518 for 55 degrees of freedom
# Null hypothesis probability = 5.766030e-01
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] : 6.66041 ( )
R^2/D10^2 : 1.68441 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 140.09 using 59 PHA bins.
# Reduced chi-squared = 2.4577 for 57 degrees of freedom
# Null hypothesis probability = 6.018375e-09
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.275e-07 5.344e-08
25- 50 9.030e-07 4.448e-08
50-150 1.246e-07 2.192e-08
15-150 1.755e-06 8.480e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 22.9437 (-2.10435 2.39249)
Norm : 8.12977 (-0.995725 1.16086)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.986e-07 6.016e-08
25- 50 8.698e-07 3.872e-08
50-150 3.250e-07 4.685e-08
15-150 2.093e-06 9.888e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.98914 (-0.503607 0.476559)
R1^2/D10^2 : 5.56297 (-1.85827 3.40152)
kT2 [keV] : 16.7830 (-3.35887 4.73199)
R2^2/D10^2 : 1.58119E-02 (-0.0101234 0.0272202)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.166e-07 1.008e-07
25- 50 8.127e-07 1.015e-07
50-150 5.333e-07 2.001e-07
15-150 2.263e-06 3.619e-07
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: 2.94285 ( -0.107674 0.110557 )
Norm@50keV : 3.21245E-03 ( -0.000220983 0.000220606 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.47 using 59 PHA bins.
# Reduced chi-squared = 0.9906 for 57 degrees of freedom
# Null hypothesis probability = 4.951013e-01
Photon flux (15-150 keV) in 64 sec: 0.847738 ( -0.0401648 0.0405293 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.40755e-06 ( -1.01245e-07 1.01469e-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: 1.98434 ( -0.203147 -1.98434 )
Epeak [keV] : 0.592729 ( -0.0783067 0.0937509 )
Norm@50keV : 1.22758E-02 ( -0.000567854 0.00175046 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.81 using 59 PHA bins.
# Reduced chi-squared = 1.086 for 56 degrees of freedom
# Null hypothesis probability = 3.067725e-01
Photon flux (15-150 keV) in 64 sec: 0.834042 ( -0.047402 0.047264 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.34877e-06 ( -1.46336e-07 1.44704e-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 : -1.56652 ( -1.43552 3.3852 )
beta : -3.11983 ( -0.257269 0.200752 )
Epeak [keV] : 9.20480 ( -4.10709 9.89699 )
Norm@50keV : 2.81179E-02 ( -0.0156574 3743.53 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.34 using 59 PHA bins.
# Reduced chi-squared = 0.9517 for 55 degrees of freedom
# Null hypothesis probability = 5.768156e-01
Photon flux (15-150 keV) in 64 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] : 6.66041 ( )
R^2/D10^2 : 1.68441 ( )
(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 7.275e-07 5.696e-08
25- 50 9.030e-07 4.480e-08
50-150 1.246e-07 2.045e-08
15-150 1.755e-06 8.512e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 22.9437 (-2.10435 2.39249)
Norm : 8.12977 (-0.995725 1.16086)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.986e-07 5.632e-08
25- 50 8.698e-07 4.288e-08
50-150 3.250e-07 5.050e-08
15-150 2.093e-06 8.896e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.98914 (-0.503607 0.476559)
R1^2/D10^2 : 5.56297 (-1.85827 3.40152)
kT2 [keV] : 16.7830 (-3.35887 4.73199)
R2^2/D10^2 : 1.58119E-02 (-0.0101234 0.0272202)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.166e-07 1.024e-07
25- 50 8.127e-07 1.018e-07
50-150 5.333e-07 2.380e-07
15-150 2.263e-06 3.299e-07
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: 2.94285 ( -0.107674 0.110557 )
Norm@50keV : 3.21245E-03 ( -0.000220983 0.000220606 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.47 using 59 PHA bins.
# Reduced chi-squared = 0.9906 for 57 degrees of freedom
# Null hypothesis probability = 4.951013e-01
Photon flux (15-150 keV) in 64 sec: 0.847738 ( -0.0401648 0.0405293 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.40755e-06 ( -1.01245e-07 1.01469e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.98434 ( -0.203147 -1.98434 )
Epeak [keV] : 0.592729 ( -0.0783067 0.0937509 )
Norm@50keV : 1.22758E-02 ( -0.000567854 0.00175046 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.81 using 59 PHA bins.
# Reduced chi-squared = 1.086 for 56 degrees of freedom
# Null hypothesis probability = 3.067725e-01
Photon flux (15-150 keV) in 64 sec: 0.834042 ( -0.047402 0.047264 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.34877e-06 ( -1.46336e-07 1.44704e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.56795 ( -1.13055 1.38625 )
beta : -3.11992 ( -0.254591 0.196368 )
Epeak [keV] : 9.18635 ( -4.09894 9.91533 )
Norm@50keV : 2.80453E-02 ( -0.0155943 3743.57 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.34 using 59 PHA bins.
# Reduced chi-squared = 0.9517 for 55 degrees of freedom
# Null hypothesis probability = 5.768182e-01
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) = 8.05e-07
S(50-100 keV) = 4.19e-07
T90 vs. Hardness ratio plot
T90 = 64 sec.
Hardness ratio (energy fluence ratio) = 0.520497
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.617218
Count Ratio (50-100 keV) / (15-25 keV) = 0.161879
Mask shadow pattern
IMX = 1.847744720714629E-02, IMY = 1.343450510501628E-03
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:
0.000000 64.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8245 -15.6243 8.0 16.5 -93.0 0.2971 1.4 9.0 Sco X-1
254.5662 35.2890 4.8 52.0 -10.2 -1.1658 -2.4 6.2 Her X-1
255.9893 -37.8458 11.2 22.3 -170.1 -0.1925 -1.0 0.2 4U 1700-377
256.4333 -36.4462 70.6 20.8 -170.1 0.0318 0.2 1.4 GX 349+2
263.0226 -24.5960 5.3 8.5 170.6 0.3875 2.1 9.0 GX 1+4
264.5598 -44.4050 4.3 28.3 173.4 0.5696 2.7 8.3 4U 1735-44
268.5149 -1.3094 0.0 16.2 21.6 -0.1779 -1.0 12.3 SW J1753.5-0127
270.4479 -25.0919 38.6 11.9 137.0 -0.0543 -0.3 8.9 GX 5-1
270.1386 -25.6643 42.5 12.2 139.8 0.0524 0.3 10.0 GRS 1758-258
273.8504 -13.9702 9.6 11.7 78.0 -0.2365 -1.2 9.9 GX 17+2
275.7713 -30.4583 11.9 19.1 138.3 -0.1956 -1.0 9.7 H1820-303
284.9082 -24.9929 11.5 23.2 113.5 -0.2617 -1.0 8.2 HT1900.1-2455
288.7646 10.9998 24.5 38.0 43.4 0.1979 0.5 3.8 GRS 1915+105
263.0704 -33.9869 6.7 17.8 174.3 -0.3054 -1.7 10.0 GX 354-0
297.7412 -12.1513 2.6 34.9 85.5 1.8429 4.4 ------ UNKNOWN
261.9013 -15.1375 0.4 1.1 -4.2 5.9832 30.4 ------ UNKNOWN
237.0266 -65.5036 3.6 52.0 -169.8 1.5632 3.2 ------ UNKNOWN
249.3993 9.1587 2.9 28.2 -29.5 0.8228 3.9 ------ UNKNOWN
245.0255 -14.6161 0.7 16.4 -89.3 3.2974 16.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
86.700590 243.081800
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9527 -15.4916 4.4 16.4 -96.2 -1.1429 -2.6 9.0 Sco X-1
254.5887 35.4179 10.7 51.0 -10.3 -0.9912 -1.1 7.8 Her X-1
255.9811 -37.8172 5.5 23.3 -170.7 0.8694 2.1 1.6 4U 1700-377
256.4339 -36.4295 57.4 21.9 -170.7 0.0826 0.2 0.4 GX 349+2
263.1338 -24.8998 4.5 9.8 170.8 -0.9686 -2.6 11.5 GX 1+4
264.9023 -44.3607 8.9 29.3 173.0 0.6120 1.3 8.7 4U 1735-44
268.5152 -1.3096 8.9 15.3 23.2 0.5138 1.3 12.3 SW J1753.5-0127
270.1195 -25.2301 0.0 12.7 141.3 0.6030 1.4 12.7 GX 5-1
270.4651 -25.8888 0.0 13.4 142.1 -0.4038 -0.9 12.4 GRS 1758-258
274.1600 -14.0029 6.9 11.9 83.5 -0.7490 -1.7 9.2 GX 17+2
275.7640 -30.4204 8.1 19.9 140.0 -0.6113 -1.4 8.9 H1820-303
284.9074 -24.8969 8.6 23.7 115.4 0.7601 1.3 7.1 HT1900.1-2455
288.6559 10.9933 15.7 37.2 44.3 -0.6850 -0.7 8.9 GRS 1915+105
263.0053 -33.8167 82.3 18.7 174.5 0.0557 0.1 1.3 GX 354-0
290.7589 -51.8607 2.9 43.3 151.6 4.2040 4.0 ------ UNKNOWN
255.1543 -72.8976 3.0 57.9 179.7 7.5635 3.8 ------ UNKNOWN
261.8599 -15.0955 0.3 0.1 -54.9 15.0633 34.3 ------ UNKNOWN
245.0036 -14.5622 0.6 16.3 -92.8 8.3639 19.0 ------ UNKNOWN
210.7441 -53.9794 2.0 55.5 -148.9 9.2905 5.6 ------ UNKNOWN
220.1948 -10.7320 2.7 40.8 -91.6 6.8074 4.4 ------ UNKNOWN
Plot creation:
Tue Sep 19 01:56:04 EDT 2023