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
293.7153 +21.9107 0.0089 0.0 155.0 0.1642 21.7 TRIG_00687124
------------------------------------------
Foreground time interval of the image:
-0.008 0.240 (delta_t = 0.248 [sec])
Background time interval of the image:
-239.608 -167.908 (delta_t = 71.700 [sec])
-119.608 -13.328 (delta_t = 106.280 [sec])
-12.608 -0.008 (delta_t = 12.600 [sec])
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 0.016000
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 0.016000
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 0.016000
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 -0.008 sec. to 0.240 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.77990 ( )
Norm@50keV : 2.09697E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 131.64 using 59 PHA bins.
# Reduced chi-squared = 2.3094 for 57 degrees of freedom
# Null hypothesis probability = 7.740885e-08
Photon flux (15-150 keV) in 0.248 sec: 4.93798 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.69671e-08 ( 0 0 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.008 sec. to 0.240 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.486902 ( -0.701294 0.587488 )
Epeak [keV] : 31.9912 ( -6.40928 4.7266 )
Norm@50keV : 0.387787 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 77.03 using 59 PHA bins.
# Reduced chi-squared = 1.375 for 56 degrees of freedom
# Null hypothesis probability = 3.268058e-02
Photon flux (15-150 keV) in 0.248 sec: 5.17627 ( -0.46131 0.46158 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.52924e-08 ( -6.22034e-09 6.2181e-09 ) ergs/cm2
Band function
Time interval is from -0.008 sec. to 0.240 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.472572 ( -0.496171 0.763045 )
beta : -10.0000 ( 10 1.77636e-15 )
Epeak [keV] : 32.0147 ( -6.10539 3.72004 )
Norm@50keV : 0.396013 ( -0.210937 0.595909 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 77.03 using 59 PHA bins.
# Reduced chi-squared = 1.401 for 55 degrees of freedom
# Null hypothesis probability = 2.660156e-02
Photon flux (15-150 keV) in 0.248 sec: 5.17897 ( 1.82103 -0.44523 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.54095e-08 ( -6.54078e-08 -6.04847e-09 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 8.92401 (-0.853566 0.92103)
R^2/D10^2 : 3.94841 (-1.28089 1.93757)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 93.39 using 59 PHA bins.
# Reduced chi-squared = 1.638 for 57 degrees of freedom
# Null hypothesis probability = 1.687229e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.512e-08 2.154e-09
25- 50 3.170e-08 2.964e-09
50-150 1.178e-08 2.951e-09
15-150 5.860e-08 6.386e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 35.5417 (-4.70056 5.0302)
Norm : 38.3183 (-4.93006 5.7181)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 83.25 using 59 PHA bins.
# Reduced chi-squared = 1.460 for 57 degrees of freedom
# Null hypothesis probability = 1.326052e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.089e-08 2.176e-09
25- 50 2.605e-08 2.221e-09
50-150 1.762e-08 3.607e-09
15-150 6.455e-08 6.274e-09
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.80564 (-1.1951 1.31888)
R1^2/D10^2 : 26.7226 (-15.9109 57.7391)
kT2 [keV] : 12.8392 (-1.88501 1.97822)
R2^2/D10^2 : 0.654776 (-0.360789 0.629661)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 73.65 using 59 PHA bins.
# Reduced chi-squared = 1.339 for 55 degrees of freedom
# Null hypothesis probability = 4.735045e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.939e-08 8.399e-09
25- 50 2.740e-08 1.027e-08
50-150 2.023e-08 1.108e-08
15-150 6.703e-08 2.472e-08
Peak spectrum fit
Power-law model
Time interval is from -0.382 sec. to 0.618 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.21940 ( -0.198249 0.213413 )
Norm@50keV : 8.89408E-03 ( -0.00140726 0.00138544 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.44 using 59 PHA bins.
# Reduced chi-squared = 1.095 for 57 degrees of freedom
# Null hypothesis probability = 2.889984e-01
Photon flux (15-150 keV) in 1 sec: 1.48762 ( -0.166424 0.166425 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.38567e-08 ( -1.13632e-08 1.16545e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.382 sec. to 0.618 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.673724 ( -1.28618 0.999711 )
Epeak [keV] : 32.1434 ( -11.8929 6.98791 )
Norm@50keV : 8.03423E-02 ( -0.0803422 0.446287 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.53 using 59 PHA bins.
# Reduced chi-squared = 0.9738 for 56 degrees of freedom
# Null hypothesis probability = 5.304935e-01
Photon flux (15-150 keV) in 1 sec: 1.44558 ( -0.16628 0.1669 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.45862e-08 ( -1.08929e-08 1.20734e-08 ) ergs/cm2
Band function
Time interval is from -0.382 sec. to 0.618 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.673539 ( -0.857098 3.8724 )
beta : -10.0000 ( 10 7.10543e-15 )
Epeak [keV] : 32.1365 ( -11.8894 6.98405 )
Norm@50keV : 8.03686E-02 ( -0.0803685 0.447098 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.53 using 59 PHA bins.
# Reduced chi-squared = 0.9915 for 55 degrees of freedom
# Null hypothesis probability = 4.923533e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.49072e-08 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 8.57884 (-0.991804 1.09649)
R^2/D10^2 : 1.29076 (-0.488684 0.803866)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.79 using 59 PHA bins.
# Reduced chi-squared = 1.084 for 57 degrees of freedom
# Null hypothesis probability = 3.090023e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.801e-08 3.580e-09
25- 50 3.545e-08 4.985e-09
50-150 1.165e-08 3.910e-09
15-150 6.511e-08 9.820e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 44.3638 (-10.5678 15.6252)
Norm : 9.20531 (-1.60365 2.07717)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.58 using 59 PHA bins.
# Reduced chi-squared = 0.9751 for 57 degrees of freedom
# Null hypothesis probability = 5.285191e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.183e-08 3.050e-09
25- 50 2.997e-08 3.920e-09
50-150 2.587e-08 8.310e-09
15-150 7.768e-08 1.257e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.92513 (-2.05718 18.5695)
R1^2/D10^2 : 6.39821 (-4.59463 47.0443)
kT2 [keV] : 12.4735 (-3.15151 11.0679)
R2^2/D10^2 : 0.202428 (-0.193138 0.625096)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.11 using 59 PHA bins.
# Reduced chi-squared = 0.9838 for 55 degrees of freedom
# Null hypothesis probability = 5.086324e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.132e-08 1.140e-08
25- 50 3.118e-08 1.601e-08
50-150 2.142e-08 1.296e-08
15-150 7.393e-08 3.809e-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: 2.77990 ( )
Norm@50keV : 2.09697E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 131.64 using 59 PHA bins.
# Reduced chi-squared = 2.3094 for 57 degrees of freedom
# Null hypothesis probability = 7.740885e-08
Photon flux (15-150 keV) in 0.248 sec: 4.93798 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.69671e-08 ( 0 0 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.486902 ( -0.701294 0.587488 )
Epeak [keV] : 31.9912 ( -6.40928 4.7266 )
Norm@50keV : 0.387787 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 77.03 using 59 PHA bins.
# Reduced chi-squared = 1.375 for 56 degrees of freedom
# Null hypothesis probability = 3.268058e-02
Photon flux (15-150 keV) in 0.248 sec: 5.17627 ( -0.46131 0.46158 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.52924e-08 ( -6.22034e-09 6.2181e-09 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.472572 ( -0.496171 0.763045 )
beta : -10.0000 ( 10 1.06581e-14 )
Epeak [keV] : 32.0147 ( -6.10539 3.72004 )
Norm@50keV : 0.396013 ( -0.210937 0.595909 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 77.03 using 59 PHA bins.
# Reduced chi-squared = 1.401 for 55 degrees of freedom
# Null hypothesis probability = 2.660156e-02
Photon flux (15-150 keV) in 0.248 sec: 5.17897 ( 1.82103 -0.44523 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.54095e-08 ( -6.54078e-08 -6.04847e-09 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 1.92e-08
S(50-100 keV) = 1.12e-08
T90 vs. Hardness ratio plot
T90 = 0.195999920368195 sec.
Hardness ratio (energy fluence ratio) = 0.583333
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.01677
Count Ratio (50-100 keV) / (15-25 keV) = 0.395001
Mask shadow pattern
IMX = -3.370542380668531E-04, IMY = -1.569853730924277E-04
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
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:
-239.608000 -167.908000
-119.608000 -13.328000
-12.608000 -0.008000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.5362 35.4538 5.7 36.7 155.2 0.7592 2.0 7.7 Her X-1
268.3376 -1.6350 9.8 34.2 84.5 0.5188 1.2 11.1 SW J1753.5-0127
274.0646 -14.1431 7.3 40.9 64.6 -1.4752 -1.6 7.3 GX 17+2
285.0227 -24.9109 37.4 47.6 45.5 0.2693 0.3 0.9 HT1900.1-2455
288.7724 10.9868 2.4 11.9 59.0 1.0089 4.8 2.9 GRS 1915+105
299.5703 35.2039 0.4 14.2 -125.5 5.2065 27.1 1.0 Cyg X-1
308.0947 40.9807 1.8 22.6 -116.1 1.4551 6.3 1.8 Cyg X-3
326.3033 38.4866 0.0 32.4 -93.5 -0.4843 -1.5 11.7 Cyg X-2
280.9919 -0.9772 2.9 26.0 64.9 1.1430 4.0 ------ UNKNOWN
318.1831 9.3346 2.8 26.6 -31.0 0.8832 4.1 ------ UNKNOWN
243.4304 74.4194 3.6 58.8 -159.3 4.2345 3.2 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.008000 0.240000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6606 35.3353 18.8 36.6 155.0 -0.0083 -0.6 9.9 Her X-1
268.3724 -1.3741 9.0 34.0 84.7 0.0241 1.3 4.7 SW J1753.5-0127
274.0943 -14.1085 4.1 40.8 64.6 -0.0806 -2.8 6.7 GX 17+2
285.0990 -24.9189 6.3 47.6 45.4 -0.0698 -1.8 3.4 HT1900.1-2455
288.8544 10.8489 10.8 12.0 58.4 0.0092 1.1 6.7 GRS 1915+105
299.4187 35.2887 6.5 14.3 -126.1 0.0154 1.8 9.9 Cyg X-1
308.3776 40.8921 0.0 22.7 -115.5 0.0014 0.1 12.7 Cyg X-3
325.9844 38.2882 30.3 32.1 -93.3 -0.0058 -0.4 9.0 Cyg X-2
255.3749 5.7294 2.7 40.4 106.9 0.1432 4.3 ------ UNKNOWN
251.9041 21.6842 2.2 38.7 132.5 0.1118 5.3 ------ UNKNOWN
293.7152 21.9106 0.5 0.0 155.0 0.1642 21.7 ------ UNKNOWN
343.3189 8.5671 2.8 49.4 -47.6 0.1721 4.2 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
-60.608000 -13.328000
-10.608000 62.543400
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4544 35.4317 9.1 36.7 155.1 0.3342 1.3 5.4 Her X-1
268.3393 -1.3165 17.7 34.0 84.9 0.2156 0.7 8.3 SW J1753.5-0127
273.8343 -13.9918 7.0 40.9 65.1 1.1553 1.6 10.3 GX 17+2
285.1163 -25.0280 5.2 47.7 45.3 -1.3939 -2.2 7.8 HT1900.1-2455
288.7730 10.9680 2.3 11.9 59.0 0.8088 5.0 2.0 GRS 1915+105
299.5647 35.1983 0.4 14.2 -125.6 3.8374 26.4 1.3 Cyg X-1
308.1065 40.9948 2.2 22.6 -116.1 0.8274 5.3 2.5 Cyg X-3
326.2376 38.3831 12.1 32.3 -93.3 0.2347 1.0 4.8 Cyg X-2
287.7800 -26.0780 2.2 48.3 41.9 3.2449 5.2 ------ UNKNOWN
249.5585 36.0089 2.3 40.7 155.0 1.4965 5.0 ------ UNKNOWN
318.2575 9.2837 3.4 26.7 -30.9 0.5446 3.3 ------ UNKNOWN
250.9702 75.5778 3.2 57.9 -156.8 2.9458 3.6 ------ UNKNOWN
Plot creation:
Mon May 23 13:09:52 EDT 2016