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
169.8867 -61.4599 0.0363 14.0 -30.1 0.1705 5.3 TRIG_00706396
------------------------------------------
Foreground time interval of the image:
0.000 8.529 (delta_t = 8.529 [sec])
Background time interval of the image:
-42.671 0.000 (delta_t = 42.671 [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 0.064000
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 0.064000
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 0.064000
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 68.228000
69.128000 81.428000
82.128000 96.000000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.31301 ( -1.35854 -3.31301 )
Norm@50keV : 5.84146E-05 ( -5.84147e-05 0.000116531 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.59 using 59 PHA bins.
# Reduced chi-squared = 0.8875 for 57 degrees of freedom
# Null hypothesis probability = 7.128102e-01
Photon flux (15-150 keV) in 94.4 sec: 2.03526E-02 ( -0.0203526 0.0129834 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.77531e-08 ( -6.76006e-08 8.00031e-08 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 68.228000
69.128000 81.428000
82.128000 96.000000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.04649 ( )
Epeak [keV] : 16.9980 ( )
Norm@50keV : 1.44201E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.52 using 59 PHA bins.
# Reduced chi-squared = 0.9022 for 56 degrees of freedom
# Null hypothesis probability = 6.815188e-01
Photon flux (15-150 keV) in 94.4 sec: 2.13172E-02 ( -0.0213172 0.012672 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.1702e-08 ( -8.1702e-08 7.43837e-08 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 68.228000
69.128000 81.428000
82.128000 96.000000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.59198 ( 1.59217 1.59217 )
beta : -9.37149 ( 9.37165 19.3716 )
Epeak [keV] : 9.86792 ( -9.84562 -9.84562 )
Norm@50keV : 6.59014E-04 ( -0.000659305 380351 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.49 using 59 PHA bins.
# Reduced chi-squared = 0.9180 for 55 degrees of freedom
# Null hypothesis probability = 6.474399e-01
Photon flux (15-150 keV) in 94.4 sec: 2.09538E-02 ( 6.97905 -0.0109108 ) 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] : 7.22929 (-7.23076 5.23128)
R^2/D10^2 : 3.84046E-02 (-0.0383726 -0.0383726)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.98 using 59 PHA bins.
# Reduced chi-squared = 0.8944 for 57 degrees of freedom
# Null hypothesis probability = 6.991633e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.144e-08 2.087e-08
25- 50 4.579e-08 3.356e-08
50-150 8.514e-09 7.864e-09
15-150 8.574e-08 6.070e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 21.0553 (-21.1591 57.6872)
Norm : 0.251506 (-0.250505 -0.250505)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.51 using 59 PHA bins.
# Reduced chi-squared = 0.8861 for 57 degrees of freedom
# Null hypothesis probability = 7.155877e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.841e-08 2.506e-08
25- 50 3.497e-08 2.565e-08
50-150 1.140e-08 1.367e-08
15-150 8.479e-08 5.909e-08
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 0.213738 (-0.213666 3.05548)
R1^2/D10^2 : 1.03095E+23 (-1.27509e+22 -9.95089e+22)
kT2 [keV] : 8.49626 (-4.39549 6.28182)
R2^2/D10^2 : 1.75060E-02 (-0.0163268 0.0793354)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.51 using 59 PHA bins.
#Fit statistic : Chi-Squared = 47.28 using 59 PHA bins.
# Reduced chi-squared = 0.8639 for 55 degrees of freedom
# Reduced chi-squared = 0.8596 for 55 degrees of freedom
# Null hypothesis probability = 7.532366e-01
# Null hypothesis probability = 7.609129e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.054e-08 1.445e-08
25- 50 4.038e-08 2.727e-08
50-150 1.545e-08 1.563e-08
15-150 8.637e-08 5.074e-08
Peak spectrum fit
Power-law model
Time interval is from -0.020 sec. to 0.980 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.14011 ( -0.228353 0.247281 )
Norm@50keV : 7.14516E-03 ( -0.00129185 0.00126725 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.77 using 59 PHA bins.
# Reduced chi-squared = 1.189 for 57 degrees of freedom
# Null hypothesis probability = 1.555457e-01
Photon flux (15-150 keV) in 1 sec: 1.14690 ( -0.15291 0.15291 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.66655e-08 ( -1.06565e-08 1.096e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.020 sec. to 0.980 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.467555 ( -2.22839 1.52954 )
Epeak [keV] : 35.1738 ( -5.65905 5.96279 )
Norm@50keV : 0.289974 ( -0.312196 7.53553 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.48 using 59 PHA bins.
# Reduced chi-squared = 1.026 for 56 degrees of freedom
# Null hypothesis probability = 4.201066e-01
Photon flux (15-150 keV) in 1 sec: 1.09861 ( -0.151711 0.15256 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.6519e-08 ( -9.0744e-09 1.02868e-08 ) ergs/cm2
Band function
Time interval is from -0.020 sec. to 0.980 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 1.06434 ( -2.0215 -1.0442 )
beta : -3.68518 ( 3.68483 1.143 )
Epeak [keV] : 34.0923 ( -6.05365 6.23459 )
Norm@50keV : 0.738073 ( -0.692716 171.634 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.28 using 59 PHA bins.
# Reduced chi-squared = 1.042 for 55 degrees of freedom
# Null hypothesis probability = 3.904075e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.87454e-08 ( -5.87384e-08 -1.08265e-08 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.00170 (-1.04818 1.18653)
R^2/D10^2 : 0.865034 (-0.336582 0.540209)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.29 using 59 PHA bins.
# Reduced chi-squared = 1.023 for 57 degrees of freedom
# Null hypothesis probability = 4.277979e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.365e-08 3.045e-09
25- 50 2.902e-08 4.630e-09
50-150 1.108e-08 3.873e-09
15-150 5.374e-08 1.004e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 48.1087 (-12.9895 21.0861)
Norm : 6.82325 (-1.34049 1.73542)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.49 using 59 PHA bins.
# Reduced chi-squared = 1.079 for 57 degrees of freedom
# Null hypothesis probability = 3.183348e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.653e-08 2.565e-09
25- 50 2.341e-08 3.830e-09
50-150 2.191e-08 7.940e-09
15-150 6.185e-08 1.202e-08
Double BB
R1^2/D10^2 : 3150.35 (-3177.64 -3177.64)
kT2 [keV] : 9.33170 (-1.18243 -9.33169)
R2^2/D10^2 : 0.731321 (-0.731351 0.479028)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.01 using 59 PHA bins.
#Fit statistic : Chi-Squared = 56.97 using 59 PHA bins.
#Fit statistic : Chi-Squared = 56.95 using 59 PHA bins.
# Reduced chi-squared = 1.037 for 55 degrees of freedom
# Reduced chi-squared = 1.036 for 55 degrees of freedom
# Reduced chi-squared = 1.035 for 55 degrees of freedom
# Null hypothesis probability = 4.001256e-01
# Null hypothesis probability = 4.018275e-01
# Null hypothesis probability = 4.023775e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.417e-08 4.463e-09
25- 50 2.824e-08 7.940e-09
50-150 1.225e-08 5.345e-09
15-150 5.465e-08 1.416e-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: 2.52493 ( -0.47691 0.619452 )
Norm@50keV : 9.67236E-04 ( -0.000416423 0.000415562 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.78 using 59 PHA bins.
# Reduced chi-squared = 0.9435 for 57 degrees of freedom
# Null hypothesis probability = 5.966590e-01
Photon flux (15-150 keV) in 8.529 sec: 0.192947 ( -0.0451259 0.0452223 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.30572e-08 ( -2.53096e-08 2.76277e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.78844 ( )
Epeak [keV] : 11.3267 ( )
Norm@50keV : 2.73871E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.29 using 59 PHA bins.
# Reduced chi-squared = 0.9515 for 56 degrees of freedom
# Null hypothesis probability = 5.782453e-01
Photon flux (15-150 keV) in 8.529 sec: 0.191664 ( -0.044411 0.044903 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.94826e-08 ( -2.40059e-08 2.84212e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.84353 ( -5.74291 1.89425 )
beta : -10.0000 ( 10 1.77636e-15 )
Epeak [keV] : 8.56141 ( -7.00309 27.4977 )
Norm@50keV : 2.58781E-03 ( -0.00128315 0.0865661 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.27 using 59 PHA bins.
# Reduced chi-squared = 0.9685 for 55 degrees of freedom
# Null hypothesis probability = 5.410334e-01
Photon flux (15-150 keV) in 8.529 sec: 0.192085 ( 6.80792 -0.044765 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.96119e-08 ( -7.95522e-08 -2.43465e-08 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 2.50e-08
S(50-100 keV) = 1.01e-08
T90 vs. Hardness ratio plot
T90 = 96.0000000596046 sec.
Hardness ratio (energy fluence ratio) = 0.404
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.09569
Count Ratio (50-100 keV) / (15-25 keV) = -0.075604
Mask shadow pattern
IMX = 2.155323175532926E-01, IMY = 1.251393619132249E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
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:
-42.671400 0.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.4991 -40.5716 2.3 36.0 -82.9 0.8806 5.1 1.7 Vela X-1
169.9907 -60.5810 5.5 14.9 -30.6 -0.1479 -2.1 9.9 Cen X-3
186.6776 -62.7822 0.8 15.4 1.1 0.9719 13.7 0.9 GX 301-2
174.8629 -48.8769 2.2 26.9 -28.5 0.3939 5.3 ------ UNKNOWN
112.2353 -45.7695 2.5 35.3 -113.5 0.6389 4.6 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 8.528600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.3576 -40.5511 2.9 36.1 -83.1 -0.3253 -3.9 7.8 Vela X-1
170.3515 -60.4426 4.8 15.0 -30.1 0.0786 2.4 10.9 Cen X-3
186.8845 -62.8875 5.5 15.3 1.6 -0.0712 -2.1 9.4 GX 301-2
231.1879 -45.9506 1.9 41.4 36.5 0.4550 6.1 ------ UNKNOWN
109.9732 -54.1364 2.1 28.1 -122.0 0.2612 5.6 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
45.628590 68.228000
69.128000 81.428000
82.128000 962.194300
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5191 -40.5684 0.8 29.4 -111.1 15.0500 13.6 0.9 Vela X-1
170.2595 -60.6232 12.0 0.9 -38.2 0.6114 1.0 1.7 Cen X-3
186.6650 -62.7831 0.6 7.9 56.4 12.1526 19.8 0.8 GX 301-2
286.3216 -77.5767 3.0 35.7 110.3 6.1758 3.9 ------ UNKNOWN
223.2219 -40.8143 3.2 37.8 31.6 4.2028 3.6 ------ UNKNOWN
196.0424 -58.1915 3.5 13.5 37.2 2.1848 3.3 ------ UNKNOWN
188.4592 -26.6833 3.3 37.0 -22.1 2.9123 3.5 ------ UNKNOWN
149.7135 -44.9565 2.6 20.3 -95.1 3.1626 4.5 ------ UNKNOWN
164.4567 -16.0882 3.1 45.6 -57.7 14.2205 3.7 ------ UNKNOWN
Plot creation:
Fri Jul 29 02:50:01 EDT 2016