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
233.4906 -57.3465 0.0194 16.5 15.2 1.1559 9.9 TRIG_00773893
------------------------------------------
Foreground time interval of the image:
0.000 4.230 (delta_t = 4.230 [sec])
5.000 64.000 (delta_t = 59.000 [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
Multiple GTIs in the spectrum
tstart tstop
0.000000 4.230000
5.000000 64.000000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.77890 ( -0.353076 0.408891 )
Norm@50keV : 6.93743E-04 ( -0.000206024 0.000213243 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.94 using 59 PHA bins.
# Reduced chi-squared = 0.9113 for 57 degrees of freedom
# Null hypothesis probability = 6.647471e-01
Photon flux (15-150 keV) in 63.23 sec: 0.163260 ( -0.0224459 0.0224708 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.80265e-07 ( -8.69811e-08 9.37126e-08 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 4.230000
5.000000 64.000000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.97208 ( -1.74255 0.0522898 )
Epeak [keV] : 1.08811 ( -0.588483 21.0914 )
Norm@50keV : 2.43279E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.51 using 59 PHA bins.
# Reduced chi-squared = 0.9377 for 56 degrees of freedom
# Null hypothesis probability = 6.077095e-01
Photon flux (15-150 keV) in 63.23 sec: 0.163222 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 4.79315e-07 ( -1.12221e-07 9.44536e-08 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 4.230000
5.000000 64.000000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -7.27329 ( 7.27329 7.27329 )
beta : -2.77890 ( -0.408839 0.352997 )
Epeak [keV] : 9.88749 ( -9.88749 -9.88749 )
Norm@50keV : 9.42893E-02 ( -0.0280015 0.0289827 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.94 using 59 PHA bins.
# Reduced chi-squared = 0.9444 for 55 degrees of freedom
# Null hypothesis probability = 5.921757e-01
Photon flux (15-150 keV) in 63.23 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] : 6.25374 (-0.990632 1.07586)
R^2/D10^2 : 0.482334 (-0.238388 0.545539)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.13 using 59 PHA bins.
# Reduced chi-squared = 1.055 for 57 degrees of freedom
# Null hypothesis probability = 3.630573e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.678e-07 4.142e-08
25- 50 1.829e-07 5.106e-08
50-150 1.979e-08 1.129e-08
15-150 3.705e-07 7.686e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 22.2620 (-6.34506 9.81773)
Norm : 1.72195 (-0.535439 0.87985)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.26 using 59 PHA bins.
# Reduced chi-squared = 0.9344 for 57 degrees of freedom
# Null hypothesis probability = 6.161580e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.839e-07 3.443e-08
25- 50 1.743e-07 3.965e-08
50-150 6.215e-08 3.767e-08
15-150 4.204e-07 9.001e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.28517 (-1.0794 1.44286)
R1^2/D10^2 : 48.3708 (-52.1232 21042.6)
kT2 [keV] : 8.13257 (-1.62191 2.80413)
R2^2/D10^2 : 0.127996 (-0.0961385 0.239668)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.59 using 59 PHA bins.
# Reduced chi-squared = 0.9198 for 55 degrees of freedom
# Null hypothesis probability = 6.437558e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.831e-07 9.051e-08
25- 50 1.807e-07 1.019e-07
50-150 4.887e-08 3.218e-08
15-150 4.126e-07 2.101e-07
Peak spectrum fit
Power-law model
Time interval is from 5.000 sec. to 64.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.77890 ( -0.353076 0.408891 )
Norm@50keV : 6.93743E-04 ( -0.000206024 0.000213243 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.94 using 59 PHA bins.
# Reduced chi-squared = 0.9113 for 57 degrees of freedom
# Null hypothesis probability = 6.647471e-01
Photon flux (15-150 keV) in 63.23 sec: 0.163260 ( -0.0224459 0.0224708 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.80265e-07 ( -8.69811e-08 9.37126e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 5.000 sec. to 64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.97208 ( -1.74255 0.0522898 )
Epeak [keV] : 1.08811 ( -0.588483 21.0914 )
Norm@50keV : 2.43279E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.51 using 59 PHA bins.
# Reduced chi-squared = 0.9377 for 56 degrees of freedom
# Null hypothesis probability = 6.077095e-01
Photon flux (15-150 keV) in 63.23 sec: 0.163222 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 4.79315e-07 ( -1.12221e-07 9.44536e-08 ) ergs/cm2
Band function
Time interval is from 5.000 sec. to 64.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -7.27329 ( 7.27329 7.27329 )
beta : -2.77890 ( -0.408839 0.352997 )
Epeak [keV] : 9.88749 ( -9.88749 -9.88749 )
Norm@50keV : 9.42893E-02 ( -0.0280015 0.0289827 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.94 using 59 PHA bins.
# Reduced chi-squared = 0.9444 for 55 degrees of freedom
# Null hypothesis probability = 5.921757e-01
Photon flux (15-150 keV) in 63.23 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] : 6.25374 (-0.990632 1.07586)
R^2/D10^2 : 0.482334 (-0.238388 0.545539)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.13 using 59 PHA bins.
# Reduced chi-squared = 1.055 for 57 degrees of freedom
# Null hypothesis probability = 3.630573e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.678e-07 3.740e-08
25- 50 1.829e-07 4.584e-08
50-150 1.979e-08 1.117e-08
15-150 3.705e-07 8.049e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 22.2620 (-6.34506 9.81773)
Norm : 1.72195 (-0.535439 0.87985)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.26 using 59 PHA bins.
# Reduced chi-squared = 0.9344 for 57 degrees of freedom
# Null hypothesis probability = 6.161580e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.839e-07 3.484e-08
25- 50 1.743e-07 4.546e-08
50-150 6.215e-08 3.602e-08
15-150 4.204e-07 8.814e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.28517 (-1.0794 1.44286)
R1^2/D10^2 : 48.3708 (-52.1232 21042.6)
kT2 [keV] : 8.13257 (-1.62191 2.80413)
R2^2/D10^2 : 0.127996 (-0.0961385 0.239668)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.59 using 59 PHA bins.
# Reduced chi-squared = 0.9198 for 55 degrees of freedom
# Null hypothesis probability = 6.437558e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.831e-07 9.443e-08
25- 50 1.807e-07 1.027e-07
50-150 4.887e-08 3.234e-08
15-150 4.126e-07 2.094e-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: 2.77890 ( -0.353076 0.408891 )
Norm@50keV : 6.93743E-04 ( -0.000206024 0.000213243 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.94 using 59 PHA bins.
# Reduced chi-squared = 0.9113 for 57 degrees of freedom
# Null hypothesis probability = 6.647471e-01
Photon flux (15-150 keV) in 63.23 sec: 0.163260 ( -0.0224459 0.0224708 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.80265e-07 ( -8.69811e-08 9.37126e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.97208 ( -1.74255 0.0522898 )
Epeak [keV] : 1.08811 ( -0.588483 21.0914 )
Norm@50keV : 2.43279E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.51 using 59 PHA bins.
# Reduced chi-squared = 0.9377 for 56 degrees of freedom
# Null hypothesis probability = 6.077095e-01
Photon flux (15-150 keV) in 63.23 sec: 0.163222 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 4.79315e-07 ( -1.12221e-07 9.44536e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -7.27329 ( 7.27329 7.27329 )
beta : -2.77890 ( -0.408839 0.352997 )
Epeak [keV] : 9.88749 ( -9.88749 -9.88749 )
Norm@50keV : 9.42893E-02 ( -0.0280015 0.0289827 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.94 using 59 PHA bins.
# Reduced chi-squared = 0.9444 for 55 degrees of freedom
# Null hypothesis probability = 5.921757e-01
Photon flux (15-150 keV) in 63.23 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) = 1.61e-07
S(50-100 keV) = 9.41e-08
T90 vs. Hardness ratio plot
T90 = 64 sec.
Hardness ratio (energy fluence ratio) = 0.584472
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.728599
Count Ratio (50-100 keV) / (15-25 keV) = 0.100184
Mask shadow pattern
IMX = 2.866187367411110E-01, IMY = -7.769849404688056E-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:
0.000000 4.230000
5.000000 64.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5068 -40.6752 4.4 44.0 -165.1 0.5496 2.6 7.3 Vela X-1
170.5148 -60.6456 4.7 14.8 -170.5 0.3171 2.5 6.0 Cen X-3
186.9946 -62.9042 366.9 6.8 -175.2 -0.0038 -0.0 12.3 GX 301-2
245.1755 -15.6204 11.4 55.6 -19.0 -0.4799 -1.0 11.4 Sco X-1
255.9047 -37.9796 4.5 40.6 7.0 0.4868 2.6 9.0 4U 1700-377
256.3983 -36.2327 0.0 42.2 6.0 -0.0984 -0.5 11.6 GX 349+2
263.0471 -24.6157 8.0 55.1 4.2 0.7789 1.5 8.1 GX 1+4
264.9195 -44.4422 4.2 39.7 21.5 -0.5090 -2.8 7.6 4U 1735-44
262.8695 -33.8048 7.6 47.2 10.2 -0.4080 -1.5 6.2 GX 354-0
233.4906 -57.3465 1.2 16.5 15.2 1.1559 9.9 ------ UNKNOWN
146.6140 -23.7390 2.3 53.1 -142.2 3.4897 5.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
114.500600 473.040000
474.000000 723.091600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.5939 -60.7430 3.7 31.3 -155.9 2.4145 3.1 10.9 Cen X-3
186.6081 -62.7890 11.0 23.5 -155.8 0.6477 1.1 1.7 GX 301-2
244.9300 -15.7797 0.4 42.4 -16.4 27.0105 28.7 8.8 Sco X-1
255.9710 -37.8455 56.7 24.4 14.0 0.1329 0.2 0.7 4U 1700-377
256.3201 -36.2386 0.0 26.0 12.7 -1.0620 -1.6 12.4 GX 349+2
262.8562 -24.8620 0.0 38.7 12.6 1.1690 1.2 10.9 GX 1+4
264.8946 -44.5291 4.7 23.2 37.4 -1.8533 -2.5 8.0 4U 1735-44
270.2761 -25.2262 4.0 41.4 22.1 3.0426 2.9 8.8 GX 5-1
270.3168 -25.8943 5.6 40.9 22.7 2.1425 2.1 9.1 GRS 1758-258
274.0583 -14.0147 5.7 53.0 19.4 5.4758 2.1 3.3 GX 17+2
275.9985 -30.5183 8.9 39.6 33.1 1.6133 1.3 9.8 H1820-303
285.0343 -24.8624 43.1 48.8 37.9 -0.7714 -0.3 3.5 HT1900.1-2455
263.1142 -33.8538 5.1 30.8 20.4 -1.6602 -2.2 6.3 GX 354-0
277.4053 -68.1483 2.9 22.2 104.0 3.0487 4.0 ------ UNKNOWN
255.0893 -41.8201 1.2 20.7 18.0 6.1753 9.7 ------ UNKNOWN
247.7718 -48.0660 1.7 12.6 16.1 4.3437 6.9 ------ UNKNOWN
233.5283 -57.3458 0.7 0.0 65.4 10.2342 16.0 ------ UNKNOWN
258.5377 -5.7251 3.4 55.2 -1.9 7.3196 3.5 ------ UNKNOWN
115.8166 -56.4733 3.1 55.7 -176.5 12.9852 3.7 ------ UNKNOWN
185.1450 -59.2849 4.0 24.9 -147.8 1.8494 2.9 ------ UNKNOWN
127.4339 -53.5865 4.1 53.9 -167.9 6.5539 2.8 ------ UNKNOWN
UNKNOWN
Plot creation:
Mon Sep 25 03:36:07 EDT 2017