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
33.0740 -67.6400 0.0052 25.3605 151.1442 2.2591009 36.630 TRIG_00682522
Foreground time interval of the image:
-4.308 15.885 (delta_t = 20.193 [sec])
Background time interval of the image:
-239.816 -4.308 (delta_t = 235.508 [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 1.024000
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 1.024000
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 1.024000
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 -4.308 sec. to 40.176 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.87882 ( -0.0825128 0.0834461 )
Norm@50keV : 4.74292E-03 ( -0.000224292 0.00022272 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.40 using 59 PHA bins.
# Reduced chi-squared = 1.024 for 57 degrees of freedom
# Null hypothesis probability = 4.238722e-01
Photon flux (15-150 keV) in 44.48 sec: 0.674661 ( -0.029738 0.0298 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.93975e-06 ( -9.11809e-08 9.16506e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -4.308 sec. to 40.176 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.72351 ( -0.350416 0.31965 )
Epeak [keV] : 80.2785 ( -29.0075 -80.2883 )
Norm@50keV : 5.75585E-03 ( -0.001087 0.0030937 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.74 using 59 PHA bins.
# Reduced chi-squared = 1.031 for 56 degrees of freedom
# Null hypothesis probability = 4.106951e-01
Photon flux (15-150 keV) in 44.48 sec: 0.668110 ( -0.032689 0.032648 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.90614e-06 ( -1.14774e-07 1.12201e-07 ) ergs/cm2
Band function
Time interval is from -4.308 sec. to 40.176 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 2.36609 ( -2.52699 -1.05706 )
beta : -1.97252 ( -0.192663 0.110655 )
Epeak [keV] : 25.4410 ( -5.53056 23.2913 )
Norm@50keV : 7.04912 ( -7.04927 319.176 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.89 using 59 PHA bins.
# Reduced chi-squared = 0.9434 for 55 degrees of freedom
# Null hypothesis probability = 5.943940e-01
Photon flux (15-150 keV) in 44.48 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] : 11.1187 ( )
R^2/D10^2 : 0.202467 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 173.33 using 59 PHA bins.
# Reduced chi-squared = 3.0408 for 57 degrees of freedom
# Null hypothesis probability = 1.140076e-13
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.331e-07 1.813e-08
25- 50 6.682e-07 3.136e-08
50-150 4.705e-07 5.013e-08
15-150 1.372e-06 6.805e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 87.8089 (-13.1481 17.2182)
Norm : 3.02712 (-0.207627 0.230798)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.28 using 59 PHA bins.
# Reduced chi-squared = 1.075 for 57 degrees of freedom
# Null hypothesis probability = 3.250585e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.510e-07 2.466e-08
25- 50 5.905e-07 2.647e-08
50-150 8.855e-07 1.902e-07
15-150 1.827e-06 2.188e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.49281 (-0.873447 0.878439)
R1^2/D10^2 : 0.723429 (-0.223684 0.377042)
kT2 [keV] : 31.5229 (-7.66583 15.455)
R2^2/D10^2 : 3.04135E-03 (-0.00205853 0.00490841)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.37 using 59 PHA bins.
# Reduced chi-squared = 1.007 for 55 degrees of freedom
# Null hypothesis probability = 4.606171e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.302e-07 3.552e-08
25- 50 6.106e-07 5.338e-08
50-150 9.834e-07 3.681e-07
15-150 1.924e-06 3.861e-07
Peak spectrum fit
Power-law model
Time interval is from 14.400 sec. to 15.400 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.88711 ( -0.207228 0.219727 )
Norm@50keV : 1.11776E-02 ( -0.00161178 0.00157103 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 72.76 using 59 PHA bins.
# Reduced chi-squared = 1.276 for 57 degrees of freedom
# Null hypothesis probability = 7.791371e-02
Photon flux (15-150 keV) in 1 sec: 1.59549 ( -0.18532 0.18535 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.02773e-07 ( -1.44142e-08 1.47168e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 14.400 sec. to 15.400 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.27391 ( -0.983939 0.801029 )
Epeak [keV] : 51.6059 ( )
Norm@50keV : 2.47596E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 71.17 using 59 PHA bins.
# Reduced chi-squared = 1.271 for 56 degrees of freedom
# Null hypothesis probability = 8.334988e-02
Photon flux (15-150 keV) in 1 sec: 1.56277 ( -0.19029 0.19034 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.73509e-08 ( -1.54101e-08 1.62574e-08 ) ergs/cm2
Band function
Time interval is from 14.400 sec. to 15.400 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.27358 ( 1.29795 2.86009 )
beta : -4.08385 ( 3.79398 13.794 )
Epeak [keV] : 51.5825 ( -51.5821 -51.5821 )
Norm@50keV : 2.47695E-02 ( -0.014602 0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 71.17 using 59 PHA bins.
# Reduced chi-squared = 1.294 for 55 degrees of freedom
# Null hypothesis probability = 7.019763e-02
Photon flux (15-150 keV) in 1 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] : 11.1535 (-1.52278 1.74814)
R^2/D10^2 : 0.502363 (-0.209985 0.364689)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 86.32 using 59 PHA bins.
# Reduced chi-squared = 1.514 for 57 degrees of freedom
# Null hypothesis probability = 7.335667e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.309e-08 2.955e-09
25- 50 3.768e-08 5.835e-09
50-150 2.676e-08 7.710e-09
15-150 7.753e-08 1.222e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 81.7493 (-25.8837 49.3204)
Norm : 7.47513 (-1.1592 1.49439)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 71.21 using 59 PHA bins.
# Reduced chi-squared = 1.249 for 57 degrees of freedom
# Null hypothesis probability = 9.767397e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.942e-08 3.080e-09
25- 50 3.214e-08 4.550e-09
50-150 4.603e-08 2.279e-08
15-150 9.759e-08 2.315e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.34142 (-1.53235 2.19402)
R1^2/D10^2 : 10.8131 (-8.5369 77.0738)
kT2 [keV] : 16.0123 (-3.27082 5.74484)
R2^2/D10^2 : 0.107013 (-0.077267 0.098691)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.06 using 59 PHA bins.
# Reduced chi-squared = 1.274 for 55 degrees of freedom
# Null hypothesis probability = 8.300621e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.010e-08 1.016e-08
25- 50 3.042e-08 1.416e-08
50-150 4.294e-08 2.459e-08
15-150 9.346e-08 4.523e-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: 1.87123 ( -0.0858105 0.0869929 )
Norm@50keV : 6.97724E-03 ( -0.000348555 0.000345953 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.72 using 59 PHA bins.
# Reduced chi-squared = 0.8548 for 57 degrees of freedom
# Null hypothesis probability = 7.742878e-01
Photon flux (15-150 keV) in 20.19 sec: 0.989299 ( -0.0456982 0.0457836 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.29503e-06 ( -6.4436e-08 6.48557e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.58488 ( -0.368572 0.334233 )
Epeak [keV] : 65.9875 ( -16.6277 -65.9887 )
Norm@50keV : 9.94335E-03 ( -0.00313078 0.00564759 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.65 using 59 PHA bins.
# Reduced chi-squared = 0.8331 for 56 degrees of freedom
# Null hypothesis probability = 8.088845e-01
Photon flux (15-150 keV) in 20.19 sec: 0.971965 ( -0.049828 0.049845 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.25724e-06 ( -7.83554e-08 7.84664e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 0.666426 ( -2.17698 -0.663134 )
beta : -1.98076 ( -0.145362 0.123791 )
Epeak [keV] : 29.1048 ( -6.96319 36.8765 )
Norm@50keV : 0.425217 ( -0.41566 433.678 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.48 using 59 PHA bins.
# Reduced chi-squared = 0.7906 for 55 degrees of freedom
# Null hypothesis probability = 8.689065e-01
Photon flux (15-150 keV) in 20.19 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) = 5.60e-07
S(50-100 keV) = 6.09e-07
T90 vs. Hardness ratio plot
T90 = 32.1799999475479 sec.
Hardness ratio (energy fluence ratio) = 1.0875
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.15851
Count Ratio (50-100 keV) / (15-25 keV) = 0.607583
Mask shadow pattern
IMX = -4.151392283191319E-01, IMY = -2.287511584243762E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
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:
-239.816000 -4.308000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
68.2849 -75.5712 2.8 32.5 127.5 1.3062 4.1 ------ UNKNOWN
94.9378 -34.6430 2.6 35.1 45.7 1.4638 4.5 ------ UNKNOWN
305.9875 -71.4878 2.3 53.0 158.3 5.1762 5.0 ------ UNKNOWN
32.8540 -67.6461 2.2 25.4 151.3 1.1841 5.3 ------ UNKNOWN
51.3912 -18.3802 2.9 25.7 -42.5 0.8324 4.1 ------ UNKNOWN
332.9799 -42.7502 2.6 54.2 -162.2 2.7470 4.4 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-4.308000 15.884600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
299.2331 -77.5627 2.5 51.5 150.5 1.3728 4.5 ------ UNKNOWN
98.7737 -29.2305 2.1 40.8 41.0 0.7046 5.5 ------ UNKNOWN
33.0739 -67.6400 0.3 25.4 151.1 2.2592 36.6 ------ UNKNOWN
19.6185 -12.9774 2.7 40.8 -94.4 0.9093 4.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
67.284590 962.287300
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
99.8782 -45.7464 3.0 39.9 14.1 2.9084 3.8 ------ UNKNOWN
102.0583 -29.0766 3.7 55.3 5.1 6.0495 3.1 ------ UNKNOWN
308.9159 -44.6982 3.3 47.3 176.6 3.9341 3.5 ------ UNKNOWN
95.5286 -28.2539 2.4 53.6 -1.7 6.3809 4.9 ------ UNKNOWN
8.9086 -61.6891 3.6 11.8 -149.0 1.5587 3.2 ------ UNKNOWN
314.3187 -30.8657 2.8 57.5 -170.3 10.4804 4.1 ------ UNKNOWN
323.2848 -25.7075 3.5 58.7 -159.3 14.5610 3.3 ------ UNKNOWN
Plot creation:
Wed Jun 1 17:52:01 EDT 2016