Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte
Image
Pre-slew 15.0-350.0 keV image (Event data)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
121.2176 -14.0162 0.0219 16.0180 -132.1513 0.9843636 8.765 TRIG_00755343
Foreground time interval of the image:
-13.244 25.796 (delta_t = 39.040 [sec])
Background time interval of the image:
-119.000 -13.244 (delta_t = 105.756 [sec])
Lightcurves
Notes:
- 1) The mask-weighted light curves are using the flight position.
- 2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 3) 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.
- 4) 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.
- 5) 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)
Quad-rate summed light curves (from T0-300s to T0+1000s)
Spectral Evolution
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using 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.
Time averaged spectrum fit using the average DRM
Power-law model
Time interval is from -13.244 sec. to 25.796 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.21744 ( -0.279872 0.275695 )
Norm@50keV : 1.90562E-03 ( -0.000259102 0.000258463 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.89 using 59 PHA bins.
# Reduced chi-squared = 1.016 for 57 degrees of freedom
# Null hypothesis probability = 4.422032e-01
Photon flux (15-150 keV) in 39.04 sec: 0.224247 ( -0.031114 0.031267 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.51188e-07 ( -1.18733e-07 1.20819e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -13.244 sec. to 25.796 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.14785 ( -1.24813 0.69212 )
Epeak [keV] : 53.3538 ( )
Norm@50keV : 5.90396E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.70 using 59 PHA bins.
# Reduced chi-squared = 1.012 for 56 degrees of freedom
# Null hypothesis probability = 4.488946e-01
Photon flux (15-150 keV) in 39.04 sec: 0.224226 ( -0.031198 0.031203 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.50396e-07 ( -1.18377e-07 1.21129e-07 ) ergs/cm2
Band function
Time interval is from -13.244 sec. to 25.796 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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] : 21.1435 (-4.28402 5.79525)
R^2/D10^2 : 8.21214E-03 (-0.00428404 0.00869467)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 76.59 using 59 PHA bins.
# Reduced chi-squared = 1.344 for 57 degrees of freedom
# Null hypothesis probability = 4.272877e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.700e-08 8.643e-09
25- 50 1.394e-07 3.117e-08
50-150 4.646e-07 1.215e-07
15-150 6.310e-07 1.638e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-50.7075 -200)
Norm : 0.917994 (-0.126813 0.126813)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.59 using 59 PHA bins.
# Reduced chi-squared = 1.116 for 57 degrees of freedom
# Null hypothesis probability = 2.555345e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.924e-08 4.983e-08
25- 50 1.717e-07 9.674e-08
50-150 3.765e-07 2.083e-07
15-150 6.374e-07 3.531e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.31978 (-1.79979 2.3377)
R1^2/D10^2 : 0.638932 (-0.484542 1.93038)
kT2 [keV] : 32.8183 (-8.96452 21.3191)
R2^2/D10^2 : 1.94580E-03 (-0.00142447 0.00317033)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.10 using 59 PHA bins.
# Reduced chi-squared = 1.002 for 55 degrees of freedom
# Null hypothesis probability = 4.709867e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.934e-08 4.805e-08
25- 50 1.359e-07 5.709e-08
50-150 5.676e-07 2.894e-07
15-150 7.928e-07 3.644e-07
Peak spectrum fit
Power-law model
Time interval is from -4.316 sec. to -3.316 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -2.10194 ( -0.720059 2.33913 )
Norm@50keV : 2.86290E-04 ( -0.000290132 0.0035707 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.38 using 59 PHA bins.
# Reduced chi-squared = 1.147 for 57 degrees of freedom
# Null hypothesis probability = 2.087096e-01
Photon flux (15-150 keV) in 1 sec: 0.408909 ( -0.408909 0.074177 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.70637e-08 ( -2.15038e-08 2.07991e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -4.316 sec. to -3.316 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -3.27315 ( )
Epeak [keV] : 9568.00 ( )
Norm@50keV : 5.39512E-05 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.37 using 59 PHA bins.
# Reduced chi-squared = 1.167 for 56 degrees of freedom
# Null hypothesis probability = 1.833258e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.68617e-08 ( -2.1413e-08 2.06666e-08 ) ergs/cm2
Band function
Time interval is from -4.316 sec. to -3.316 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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] : 200.000 (-200 -200)
R^2/D10^2 : 2.04347E-04 (-7.48506e-05 -0.000204452)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.19 using 59 PHA bins.
# Reduced chi-squared = 1.196 for 57 degrees of freedom
# Null hypothesis probability = 1.473559e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.463e-10 2.650e-10
25- 50 2.785e-09 2.056e-09
50-150 5.391e-08 5.475e-08
15-150 5.704e-08 5.960e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.362 (-123.466 -199.363)
Norm : 1.85411 (-0.788435 0.788396)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 73.39 using 59 PHA bins.
# Reduced chi-squared = 1.287 for 57 degrees of freedom
# Null hypothesis probability = 7.085450e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.617e-09 3.191e-09
25- 50 8.881e-09 5.835e-09
50-150 1.948e-08 1.255e-08
15-150 3.298e-08 2.145e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.17901 (-4.12437 5.73847)
R1^2/D10^2 : 0.775470 (-0.759993 1.48518)
kT2 [keV] : 199.363 (-199.363 -199.363)
R2^2/D10^2 : 1.90059E-04 (-7.57763e-05 0.00113076)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.89 using 59 PHA bins.
# Reduced chi-squared = 1.162 for 55 degrees of freedom
# Null hypothesis probability = 1.924356e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.342e-09 2.910e-09
25- 50 6.422e-09 3.714e-09
50-150 5.077e-08 2.119e-08
15-150 6.154e-08 2.121e-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: 1.21744 ( -0.279872 0.275695 )
Norm@50keV : 1.90562E-03 ( -0.000259102 0.000258463 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.89 using 59 PHA bins.
# Reduced chi-squared = 1.016 for 57 degrees of freedom
# Null hypothesis probability = 4.422032e-01
Photon flux (15-150 keV) in 39.04 sec: 0.224245 ( -0.0311125 0.0312658 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.51106e-07 ( -1.187e-07 1.20808e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.18249 ( -1.27618 0.780515 )
Epeak [keV] : 65.1036 ( )
Norm@50keV : 5.69584E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.66 using 59 PHA bins.
# Reduced chi-squared = 1.012 for 56 degrees of freedom
# Null hypothesis probability = 4.501106e-01
Photon flux (15-150 keV) in 39.04 sec: 0.224806 ( -0.031956 0.030694 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.53667e-07 ( -1.2127e-07 1.13013e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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) = 1.59e-07
S(50-100 keV) = 2.74e-07
T90 vs. Hardness ratio plot
T90 = 32.3039999604225 sec.
Hardness ratio (energy fluence ratio) = 1.72327
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.12436
Count Ratio (50-100 keV) / (15-25 keV) = 1.27236
Mask shadow pattern
IMX = -1.926601922337032E-01, IMY = 2.128380030077487E-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:
-119.000000 -13.244000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5723 -40.7221 42.6 30.8 156.2 -0.0611 -0.3 10.2 Vela X-1
113.4315 -57.8283 3.1 51.2 169.9 2.3167 3.6 ------ UNKNOWN
115.0679 -50.9821 2.3 44.8 173.6 1.9623 5.0 ------ UNKNOWN
107.4145 -45.2510 2.5 43.5 -175.6 1.4443 4.5 ------ UNKNOWN
105.8199 15.5592 2.8 40.1 -76.8 2.6237 4.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-13.244000 25.796000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.4460 -40.4819 8.1 30.5 156.4 -0.2070 -1.4 5.8 Vela X-1
179.9939 -6.0312 1.9 42.7 62.1 3.0161 6.2 ------ UNKNOWN
180.1564 -1.5882 2.2 43.6 55.7 2.3158 5.4 ------ UNKNOWN
147.3637 1.7816 2.4 15.6 15.6 0.4970 4.8 ------ UNKNOWN
100.0524 -55.1929 2.8 53.8 179.2 1.7004 4.0 ------ UNKNOWN
121.2176 -14.0162 1.3 16.0 -132.2 0.9843 8.8 ------ UNKNOWN
146.3641 34.0395 2.4 44.9 -15.1 0.8774 4.8 ------ UNKNOWN
90.7111 -11.1087 2.8 45.5 -121.8 2.0173 4.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
111.500600 288.300600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.6062 -40.4310 4.5 29.2 123.2 -0.9813 -2.6 8.2 Vela X-1
69.9458 -42.0899 2.9 52.2 -167.0 3.0116 4.0 ------ UNKNOWN
98.0630 2.0840 2.6 28.1 -90.9 1.5745 4.5 ------ UNKNOWN
62.7853 -30.2192 2.9 55.9 -151.3 6.0571 4.0 ------ UNKNOWN
116.2696 36.2861 2.9 50.5 -39.4 4.4226 4.0 ------ UNKNOWN
65.7029 -22.8142 2.4 53.2 -142.3 8.9868 4.8 ------ UNKNOWN
Plot creation:
Thu Jun 22 11:36:05 EDT 2017