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
259.8720 -25.0000 0.0242 17.9 58.9 4.7647 7.9 TRIG_00760835
------------------------------------------
Foreground time interval of the image:
0.000 32.000 (delta_t = 32.000 [sec])
60.000 122.000 (delta_t = 62.000 [sec])
159.000 696.000 (delta_t = 537.000 [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 696.000000
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 696.000000
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 696.000000
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 32.000000
60.000000 122.000000
159.000000 696.000000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.95824 ( -0.198563 0.207387 )
Norm@50keV : 4.14838E-04 ( -5.52853e-05 5.41247e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.80 using 59 PHA bins.
# Reduced chi-squared = 1.119 for 57 degrees of freedom
# Null hypothesis probability = 2.499403e-01
Photon flux (15-150 keV) in 631 sec: 6.10609E-02 ( -0.00650256 0.00650558 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.40956e-06 ( -3.04108e-07 3.1135e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 32.000000
60.000000 122.000000
159.000000 696.000000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.45306 ( -0.976852 0.760936 )
Epeak [keV] : 44.3151 ( )
Norm@50keV : 8.18088E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.59 using 59 PHA bins.
# Reduced chi-squared = 1.118 for 56 degrees of freedom
# Null hypothesis probability = 2.537914e-01
Photon flux (15-150 keV) in 631 sec: 5.97128E-02 ( -0.0068143 0.0068144 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.26814e-06 ( -3.58793e-07 3.7677e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 32.000000
60.000000 122.000000
159.000000 696.000000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.45309 ( -3.78074 0.981353 )
beta : -10.0000 ( 10 7.10543e-15 )
Epeak [keV] : 44.3080 ( -17.272 -44.308 )
Norm@50keV : 8.17909E-04 ( -0.000439054 0.00226665 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.59 using 59 PHA bins.
# Reduced chi-squared = 1.138 for 55 degrees of freedom
# Null hypothesis probability = 2.247971e-01
Photon flux (15-150 keV) in 631 sec: 5.98849E-02 ( 6.94012 -0.0069866 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.33957e-06 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.71343 (-1.19806 1.40232)
R^2/D10^2 : 3.13075E-02 (-0.0127162 0.020943)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 78.53 using 59 PHA bins.
# Reduced chi-squared = 1.378 for 57 degrees of freedom
# Null hypothesis probability = 3.087933e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.756e-07 6.878e-08
25- 50 8.957e-07 1.230e-07
50-150 4.295e-07 1.340e-07
15-150 1.701e-06 2.549e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 68.9239 (-20.2287 35.4781)
Norm : 0.301059 (-0.0498735 0.060211)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.63 using 59 PHA bins.
# Reduced chi-squared = 1.099 for 57 degrees of freedom
# Null hypothesis probability = 2.834634e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.866e-07 7.051e-08
25- 50 7.709e-07 9.844e-08
50-150 9.787e-07 3.301e-07
15-150 2.236e-06 3.370e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.27142 (-2.2538 2.41834)
R1^2/D10^2 : 0.203267 (-0.0793402 0.322243)
kT2 [keV] : 16.4028 (-7.4193 21.9034)
R2^2/D10^2 : 2.85983E-03 (-0.000959163 0.00508259)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.26 using 59 PHA bins.
# Reduced chi-squared = 1.150 for 55 degrees of freedom
# Null hypothesis probability = 2.077567e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.834e-07 2.770e-07
25- 50 7.137e-07 3.821e-07
50-150 8.289e-07 4.934e-07
15-150 2.026e-06 1.098e-06
Peak spectrum fit
Power-law model
Time interval is from 159.000 sec. to 696.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.95824 ( -0.198563 0.207387 )
Norm@50keV : 4.14838E-04 ( -5.52853e-05 5.41247e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.80 using 59 PHA bins.
# Reduced chi-squared = 1.119 for 57 degrees of freedom
# Null hypothesis probability = 2.499403e-01
Photon flux (15-150 keV) in 631 sec: 6.10609E-02 ( -0.00650256 0.00650558 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.40956e-06 ( -3.04108e-07 3.1135e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 159.000 sec. to 696.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.45306 ( -0.976852 0.760936 )
Epeak [keV] : 44.3151 ( -40.6939 -44.3153 )
Norm@50keV : 8.18088E-04 ( -0.00050079 0.00226411 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.59 using 59 PHA bins.
# Reduced chi-squared = 1.118 for 56 degrees of freedom
# Null hypothesis probability = 2.537914e-01
Photon flux (15-150 keV) in 631 sec: 5.97128E-02 ( -0.0068143 0.0068144 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.26814e-06 ( -3.58793e-07 3.7677e-07 ) ergs/cm2
Band function
Time interval is from 159.000 sec. to 696.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.45309 ( -3.78074 0.981353 )
beta : -10.0000 ( 10 0 )
Epeak [keV] : 44.3080 ( -17.1474 -44.308 )
Norm@50keV : 8.17909E-04 ( -0.000439054 0.00226665 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.59 using 59 PHA bins.
# Reduced chi-squared = 1.138 for 55 degrees of freedom
# Null hypothesis probability = 2.247971e-01
Photon flux (15-150 keV) in 631 sec: 5.98849E-02 ( 6.94012 -0.0069866 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.33957e-06 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.71343 (-1.19806 1.40232)
R^2/D10^2 : 3.13075E-02 (-0.0127162 0.020943)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 78.53 using 59 PHA bins.
# Reduced chi-squared = 1.378 for 57 degrees of freedom
# Null hypothesis probability = 3.087933e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.756e-07 7.238e-08
25- 50 8.957e-07 1.205e-07
50-150 4.295e-07 1.200e-07
15-150 1.701e-06 2.590e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 68.9239 (-20.2287 35.4781)
Norm : 0.301059 (-0.0498735 0.060211)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.63 using 59 PHA bins.
# Reduced chi-squared = 1.099 for 57 degrees of freedom
# Null hypothesis probability = 2.834634e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.866e-07 7.203e-08
25- 50 7.709e-07 1.013e-07
50-150 9.787e-07 2.999e-07
15-150 2.236e-06 3.373e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.27142 (-2.2538 2.41834)
R1^2/D10^2 : 0.203267 (-0.0793402 0.322243)
kT2 [keV] : 16.4028 (-7.4193 21.9034)
R2^2/D10^2 : 2.85983E-03 (-0.000959163 0.00508259)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.26 using 59 PHA bins.
# Reduced chi-squared = 1.150 for 55 degrees of freedom
# Null hypothesis probability = 2.077567e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.834e-07 2.758e-07
25- 50 7.137e-07 3.919e-07
50-150 8.289e-07 4.953e-07
15-150 2.026e-06 1.077e-06
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: 1.95824 ( -0.198563 0.207387 )
Norm@50keV : 4.14838E-04 ( -5.52853e-05 5.41247e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.80 using 59 PHA bins.
# Reduced chi-squared = 1.119 for 57 degrees of freedom
# Null hypothesis probability = 2.499403e-01
Photon flux (15-150 keV) in 631 sec: 6.10609E-02 ( -0.00650256 0.00650558 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.40956e-06 ( -3.04108e-07 3.1135e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.45306 ( -0.976852 0.760936 )
Epeak [keV] : 44.3151 ( )
Norm@50keV : 8.18088E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.59 using 59 PHA bins.
# Reduced chi-squared = 1.118 for 56 degrees of freedom
# Null hypothesis probability = 2.537914e-01
Photon flux (15-150 keV) in 631 sec: 5.97128E-02 ( -0.0068143 0.0068144 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.26814e-06 ( -3.58793e-07 3.7677e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.45309 ( -3.78074 0.981353 )
beta : -10.0000 ( 10 3.55271e-15 )
Epeak [keV] : 44.3080 ( -17.272 -44.308 )
Norm@50keV : 8.17909E-04 ( -0.000439054 0.00226665 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.59 using 59 PHA bins.
# Reduced chi-squared = 1.138 for 55 degrees of freedom
# Null hypothesis probability = 2.247971e-01
Photon flux (15-150 keV) in 631 sec: 5.98849E-02 ( 6.94012 -0.0069866 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.33957e-06 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 7.16e-07
S(50-100 keV) = 7.37e-07
T90 vs. Hardness ratio plot
T90 = 696 sec.
Hardness ratio (energy fluence ratio) = 1.02933
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.01033
Count Ratio (50-100 keV) / (15-25 keV) = 0.515466
Mask shadow pattern
IMX = 1.667050266015974E-01, IMY = -2.762284209272419E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 696.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 696.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 696.000000
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 32.000000
60.000000 122.000000
159.000000 696.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9891 -15.6386 0.4 28.1 23.4 19.0343 31.5 0.6 Sco X-1
256.2551 -37.8450 0.0 4.7 57.7 0.5356 1.1 12.7 4U 1700-377
256.4004 -36.4046 2.1 6.1 55.7 2.6679 5.5 2.0 GX 349+2
263.0029 -24.6701 3.6 19.0 67.3 2.0143 3.2 4.5 GX 1+4
264.7086 -44.2428 17.2 7.4 151.7 0.3492 0.7 12.5 4U 1735-44
270.2424 -25.0640 2.3 21.5 85.0 3.6185 4.9 2.4 GX 5-1
270.3357 -25.7129 5.1 21.0 86.1 1.6054 2.3 2.5 GRS 1758-258
273.8957 -14.0354 5.0 32.8 79.7 2.6100 2.3 6.4 GX 17+2
276.0598 -30.4469 5.1 20.7 105.7 1.4217 2.2 8.5 H1820-303
284.9769 -24.7320 77.4 30.4 108.1 -0.1344 -0.1 11.8 HT1900.1-2455
263.0627 -33.7349 2.5 10.8 83.3 2.4130 4.7 7.0 GX 354-0
283.7732 -12.4009 2.8 39.1 92.4 7.3766 4.1 ------ UNKNOWN
259.8720 -25.0001 1.4 17.9 58.9 4.7653 8.0 ------ UNKNOWN
305.4242 -64.1560 3.0 35.8 -171.3 2.4461 3.9 ------ UNKNOWN
210.7478 -25.0548 3.2 40.0 -34.8 2.8386 3.6 ------ UNKNOWN
191.9377 -63.0848 3.8 41.1 -98.3 7.8462 3.0 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
903.100590 963.027200
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6564 35.3515 5.1 19.4 151.7 -2.1990 -2.3 9.7 Her X-1
299.4101 35.1898 8.8 24.6 40.4 1.5661 1.3 8.9 Cyg X-1
308.1728 41.0825 43.1 26.4 19.6 -0.2725 -0.3 8.3 Cyg X-3
326.3424 38.2562 13.1 39.6 9.7 1.2552 0.9 9.0 Cyg X-2
269.9365 20.1633 5.2 29.9 108.2 3.6687 2.2 ------ UNKNOWN
330.6500 29.3382 2.6 48.0 16.5 11.1325 4.5 ------ UNKNOWN
272.6409 51.2897 2.8 1.3 -66.2 3.3502 4.2 ------ UNKNOWN
198.6949 33.7524 3.0 54.8 -153.7 11.9984 3.9 ------ UNKNOWN
190.6688 53.2354 2.8 48.0 -129.1 13.3926 4.1 ------ UNKNOWN
Plot creation:
Sun Jul 9 00:24:18 EDT 2017