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
139.9924 -51.1433 0.0427 47.9 -22.9 0.8673 4.5 TRIG_00722681
------------------------------------------
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: 2.65593 ( -0.623368 0.774255 )
Norm@50keV : 5.96353E-04 ( -0.00031325 0.000339565 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 64.39 using 59 PHA bins.
# Reduced chi-squared = 1.130 for 57 degrees of freedom
# Null hypothesis probability = 2.339156e-01
Photon flux (15-150 keV) in 64 sec: 0.129297 ( -0.0419678 0.0420449 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.00061e-07 ( -1.51391e-07 1.68838e-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: -8.80621 ( )
Epeak [keV] : 22.2829 ( )
Norm@50keV : 4.92373E+05 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.00 using 59 PHA bins.
# Reduced chi-squared = 1.089 for 56 degrees of freedom
# Null hypothesis probability = 3.009486e-01
Photon flux (15-150 keV) in 64 sec: 0.124887 ( -0.0407945 0.040034 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.04894e-07 ( -1.13108e-07 1.32143e-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 : 5.00000 ( -6.57696 -5 )
beta : -3.82457 ( 3.8247 1.32662 )
Epeak [keV] : 21.7829 ( -5.12501 5.44822 )
Norm@50keV : 529.210 ( -158.317 2994.27 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.99 using 59 PHA bins.
# Reduced chi-squared = 1.091 for 55 degrees of freedom
# Null hypothesis probability = 2.996017e-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] : 5.85593 (-1.48705 2.04248)
R^2/D10^2 : 0.563976 (-0.563976 1.56316)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.11 using 59 PHA bins.
# Reduced chi-squared = 1.072 for 57 degrees of freedom
# Null hypothesis probability = 3.306144e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.587e-07 9.776e-08
25- 50 1.500e-07 9.568e-08
50-150 1.242e-08 1.084e-08
15-150 3.211e-07 1.956e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 21.7349 (-9.82514 23.8037)
Norm : 1.45970 (-0.766128 1.68552)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.71 using 59 PHA bins.
# Reduced chi-squared = 1.100 for 57 degrees of freedom
# Null hypothesis probability = 2.810358e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.550e-07 8.881e-08
25- 50 1.444e-07 8.942e-08
50-150 4.956e-08 4.506e-08
15-150 3.489e-07 2.195e-07
Double BB
R1^2/D10^2 : 7.32791E-06 (-7.35321e-06 -7.35321e-06)
kT2 [keV] : 5.66971 (-1.41961 1.94616)
R2^2/D10^2 : 0.637123 (-0.455995 1.74801)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.10 using 59 PHA bins.
#Fit statistic : Chi-Squared = 61.07 using 59 PHA bins.
#Fit statistic : Chi-Squared = 59.76 using 59 PHA bins.
# Reduced chi-squared = 1.111 for 55 degrees of freedom
# Reduced chi-squared = 1.110 for 55 degrees of freedom
# Reduced chi-squared = 1.086 for 55 degrees of freedom
# Null hypothesis probability = 2.661572e-01
# Null hypothesis probability = 2.670881e-01
# Null hypothesis probability = 3.070525e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.593e-07 4.925e-07
25- 50 1.496e-07 1.900e-06
50-150 1.733e-08 1.882e-06
15-150 3.263e-07 5.744e-06
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: 2.65593 ( -0.623368 0.774255 )
Norm@50keV : 5.96353E-04 ( -0.00031325 0.000339565 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 64.39 using 59 PHA bins.
# Reduced chi-squared = 1.130 for 57 degrees of freedom
# Null hypothesis probability = 2.339156e-01
Photon flux (15-150 keV) in 64 sec: 0.129297 ( -0.0419678 0.0420449 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.00061e-07 ( -1.51391e-07 1.68838e-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: -8.80621 ( )
Epeak [keV] : 22.2829 ( )
Norm@50keV : 4.92373E+05 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.00 using 59 PHA bins.
# Reduced chi-squared = 1.089 for 56 degrees of freedom
# Null hypothesis probability = 3.009486e-01
Photon flux (15-150 keV) in 64 sec: 0.124887 ( -0.0407945 0.040034 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.04894e-07 ( -1.13108e-07 1.32143e-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 : 5.00000 ( -6.55429 -5 )
beta : -3.82457 ( 3.8247 1.32662 )
Epeak [keV] : 21.7829 ( -5.12501 5.44822 )
Norm@50keV : 529.210 ( -158.317 2994.27 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.99 using 59 PHA bins.
# Reduced chi-squared = 1.091 for 55 degrees of freedom
# Null hypothesis probability = 2.996017e-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] : 5.85593 (-1.48705 2.04248)
R^2/D10^2 : 0.563976 (-0.563976 1.56316)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.11 using 59 PHA bins.
# Reduced chi-squared = 1.072 for 57 degrees of freedom
# Null hypothesis probability = 3.306144e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.587e-07 9.696e-08
25- 50 1.500e-07 9.453e-08
50-150 1.242e-08 1.058e-08
15-150 3.211e-07 1.944e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 21.7349 (-9.82514 23.8037)
Norm : 1.45970 (-0.766128 1.68552)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.71 using 59 PHA bins.
# Reduced chi-squared = 1.100 for 57 degrees of freedom
# Null hypothesis probability = 2.810358e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.550e-07 9.607e-08
25- 50 1.444e-07 8.844e-08
50-150 4.956e-08 4.566e-08
15-150 3.489e-07 2.133e-07
Double BB
R1^2/D10^2 : 7.32791E-06 (-7.35321e-06 -7.35321e-06)
kT2 [keV] : 5.66971 (-1.41961 1.94616)
R2^2/D10^2 : 0.637123 (-0.455995 1.74801)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.10 using 59 PHA bins.
#Fit statistic : Chi-Squared = 61.07 using 59 PHA bins.
#Fit statistic : Chi-Squared = 59.76 using 59 PHA bins.
# Reduced chi-squared = 1.111 for 55 degrees of freedom
# Reduced chi-squared = 1.110 for 55 degrees of freedom
# Reduced chi-squared = 1.086 for 55 degrees of freedom
# Null hypothesis probability = 2.661572e-01
# Null hypothesis probability = 2.670881e-01
# Null hypothesis probability = 3.070525e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.593e-07 6.198e-07
25- 50 1.496e-07 2.386e-06
50-150 1.733e-08 2.222e-06
15-150 3.263e-07 4.512e-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: 2.65593 ( -0.623368 0.774255 )
Norm@50keV : 5.96353E-04 ( -0.00031325 0.000339565 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 64.39 using 59 PHA bins.
# Reduced chi-squared = 1.130 for 57 degrees of freedom
# Null hypothesis probability = 2.339156e-01
Photon flux (15-150 keV) in 64 sec: 0.129297 ( -0.0419678 0.0420449 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.00061e-07 ( -1.51391e-07 1.68838e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -8.80621 ( )
Epeak [keV] : 22.2829 ( )
Norm@50keV : 4.92373E+05 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.00 using 59 PHA bins.
# Reduced chi-squared = 1.089 for 56 degrees of freedom
# Null hypothesis probability = 3.009486e-01
Photon flux (15-150 keV) in 64 sec: 0.124887 ( -0.0407945 0.040034 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.04894e-07 ( -1.13108e-07 1.32143e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 5.00000 ( -14.285 -5 )
beta : -3.82457 ( 3.8247 1.32662 )
Epeak [keV] : 21.7829 ( -5.12501 5.44822 )
Norm@50keV : 529.210 ( -158.317 2994.27 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.99 using 59 PHA bins.
# Reduced chi-squared = 1.091 for 55 degrees of freedom
# Null hypothesis probability = 2.996017e-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) = 1.34e-07
S(50-100 keV) = 8.52e-08
T90 vs. Hardness ratio plot
T90 = 64 sec.
Hardness ratio (energy fluence ratio) = 0.635821
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.780505
Count Ratio (50-100 keV) / (15-25 keV) = -0.0721853
Mask shadow pattern
IMX = 1.020303159965240E+00, IMY = 4.304006755123567E-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:
0.000000 64.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5225 -40.5340 1.9 36.9 -21.9 0.6782 5.9 1.3 Vela X-1
92.3782 -24.0299 2.3 40.4 43.5 1.0537 5.1 ------ UNKNOWN
102.8470 -30.1105 2.2 35.8 27.0 0.6625 5.2 ------ UNKNOWN
109.1126 -58.9213 2.2 56.9 -1.5 2.2262 5.3 ------ UNKNOWN
139.9790 -51.1522 2.3 47.9 -22.9 0.9632 5.0 ------ UNKNOWN
162.9589 37.6641 2.4 52.4 -159.5 1.3970 4.8 ------ UNKNOWN
148.5307 -50.5226 2.3 49.2 -29.9 1.0650 5.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
137.000600 239.690000
241.000000 701.600000
703.000000 963.094500
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5366 -40.5550 0.8 11.0 147.3 7.4842 14.8 0.4 Vela X-1
170.6347 -60.6580 8.0 19.4 -63.5 0.9191 1.4 9.6 Cen X-3
186.8234 -62.5733 0.0 27.2 -61.8 -0.8363 -1.2 12.7 GX 301-2
100.4992 -24.0429 5.0 40.6 102.1 5.1336 2.4 ------ UNKNOWN
124.4222 -19.9428 2.9 33.5 138.2 3.1581 4.0 ------ UNKNOWN
58.6370 -66.4355 3.6 41.3 22.2 3.0276 3.2 ------ UNKNOWN
120.6466 -58.5295 3.9 13.3 34.2 1.5133 3.0 ------ UNKNOWN
147.2500 -8.6162 2.8 43.0 175.9 3.7494 4.1 ------ UNKNOWN
175.1248 -70.2398 2.6 25.0 -42.1 2.7243 4.5 ------ UNKNOWN
185.7745 -19.1330 2.9 48.0 -129.1 10.9554 4.0 ------ UNKNOWN
188.7612 -24.8415 2.6 45.4 -121.2 10.0726 4.4 ------ UNKNOWN
Plot creation:
Fri Nov 18 17:29:44 EST 2016