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
19.6606 -82.7616 0.0274 20.0095 -2.2689 0.0405565 7.012 TRIG_00665268
Foreground time interval of the image:
0.016 0.220 (delta_t = 0.204 [sec])
Background time interval of the image:
-203.579 0.016 (delta_t = 203.595 [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 0.256000
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 0.256000
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 0.256000
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 0.016 sec. to 0.220 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.25691 ( -0.339758 0.327775 )
Norm@50keV : 1.14104E-02 ( -0.00266162 0.00265882 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.17 using 59 PHA bins.
# Reduced chi-squared = 0.8276 for 57 degrees of freedom
# Null hypothesis probability = 8.202085e-01
Photon flux (15-150 keV) in 0.204 sec: 1.35117 ( -0.32696 0.32837 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.32546e-08 ( -5.63317e-09 5.6469e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.016 sec. to 0.220 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.184442 ( -1.88889 1.36026 )
Epeak [keV] : 84.4096 ( -23.6382 303.932 )
Norm@50keV : 5.44938E-02 ( -0.0544866 0.27109 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.86 using 59 PHA bins.
# Reduced chi-squared = 0.7832 for 56 degrees of freedom
# Null hypothesis probability = 8.806826e-01
Photon flux (15-150 keV) in 0.204 sec: 1.34644 ( -0.32768 0.32937 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.3143e-08 ( -5.73132e-09 5.74852e-09 ) ergs/cm2
Band function
Time interval is from 0.016 sec. to 0.220 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 0.179035 ( -0.939039 2.64568 )
beta : -10.0000 ( 10 3.55271e-15 )
Epeak [keV] : 84.4985 ( -22.319 163.208 )
Norm@50keV : 5.42063E-02 ( -0.0542063 0.270792 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.86 using 59 PHA bins.
# Reduced chi-squared = 0.7974 for 55 degrees of freedom
# Null hypothesis probability = 8.597643e-01
Photon flux (15-150 keV) in 0.204 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] : 19.2804 (-4.20111 5.17691)
R^2/D10^2 : 7.80300E-02 (-0.0443694 0.100415)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.19 using 59 PHA bins.
# Reduced chi-squared = 0.7929 for 57 degrees of freedom
# Null hypothesis probability = 8.706078e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.157e-09 5.073e-10
25- 50 5.621e-09 2.516e-09
50-150 1.540e-08 6.572e-09
15-150 2.218e-08 8.309e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-78.2346 -200)
Norm : 5.75281 (-1.35424 1.35424)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.29 using 59 PHA bins.
# Reduced chi-squared = 0.8471 for 57 degrees of freedom
# Null hypothesis probability = 7.877031e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.923e-09 1.763e-09
25- 50 5.622e-09 3.329e-09
50-150 1.233e-08 7.279e-09
15-150 2.087e-08 1.241e-08
Double BB
R1^2/D10^2 : 0.608268 (-0.632406 2.3986)
kT2 [keV] : 23.4749 (-23.4586 -23.4586)
R2^2/D10^2 : 3.33036E-02 (-0.0335773 0.0848769)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.19 using 59 PHA bins.
#Fit statistic : Chi-Squared = 43.28 using 59 PHA bins.
#Fit statistic : Chi-Squared = 43.20 using 59 PHA bins.
# Reduced chi-squared = 0.8217 for 55 degrees of freedom
# Reduced chi-squared = 0.7870 for 55 degrees of freedom
# Reduced chi-squared = 0.7854 for 55 degrees of freedom
# Null hypothesis probability = 8.244753e-01
# Null hypothesis probability = 8.735422e-01
# Null hypothesis probability = 8.755486e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Peak spectrum fit
Power-law model
Time interval is from -0.380 sec. to 0.620 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.01810 ( -0.694368 0.57732 )
Norm@50keV : 3.38101E-03 ( -0.00118241 0.00115818 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.19 using 59 PHA bins.
# Reduced chi-squared = 0.9507 for 57 degrees of freedom
# Null hypothesis probability = 5.812403e-01
Photon flux (15-150 keV) in 1 sec: 0.389650 ( -0.136437 0.137794 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.63329e-08 ( -1.31248e-08 1.34626e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.380 sec. to 0.620 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.964329 ( -6.51227 -0.712281 )
Epeak [keV] : 953.736 ( -968.882 -968.882 )
Norm@50keV : 3.60803E-03 ( -0.00135698 33.5202 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.19 using 59 PHA bins.
# Reduced chi-squared = 0.9676 for 56 degrees of freedom
# Null hypothesis probability = 5.437866e-01
Photon flux (15-150 keV) in 1 sec: 0.389122 ( -0.137702 0.137945 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.61393e-08 ( -1.96254e-08 1.35485e-08 ) ergs/cm2
Band function
Time interval is from -0.380 sec. to 0.620 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.95652 ( -4.95652 -4.95652 )
beta : -1.51669 ( -1.80092 0.872149 )
Epeak [keV] : 35.4131 ( -31.4563 17.649 )
Norm@50keV : 37.5060 ( -12.1226 817651 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.99 using 59 PHA bins.
# Reduced chi-squared = 0.9453 for 55 degrees of freedom
# Null hypothesis probability = 5.902681e-01
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] : 15.2527 (-5.42052 18.9076)
R^2/D10^2 : 4.43291E-02 (-0.0439421 0.15987)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.91 using 59 PHA bins.
# Reduced chi-squared = 0.9810 for 57 degrees of freedom
# Null hypothesis probability = 5.158422e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.153e-09 1.434e-09
25- 50 8.686e-09 5.450e-09
50-150 1.385e-08 9.500e-09
15-150 2.469e-08 1.582e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.361 (-112.628 -199.362)
Norm : 1.60855 (-0.568639 0.568632)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.21 using 59 PHA bins.
# Reduced chi-squared = 0.9862 for 57 degrees of freedom
# Null hypothesis probability = 5.045140e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.005e-09 2.547e-09
25- 50 7.705e-09 4.897e-09
50-150 1.690e-08 1.060e-08
15-150 2.861e-08 1.817e-08
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 10.4962 (-3.69767 6.0038)
R1^2/D10^2 : 0.128926 (-0.10782 0.391269)
kT2 [keV] : 198.983 (-174.626 -199.113)
R2^2/D10^2 : 7.47647E-05 (-5.14489e-05 0.00672119)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.91 using 59 PHA bins.
#Fit statistic : Chi-Squared = 51.46 using 59 PHA bins.
# Reduced chi-squared = 1.017 for 55 degrees of freedom
# Reduced chi-squared = 0.9356 for 55 degrees of freedom
# Null hypothesis probability = 4.402852e-01
# Null hypothesis probability = 6.108256e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
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: 1.25691 ( -0.339758 0.327775 )
Norm@50keV : 1.14104E-02 ( -0.00266162 0.00265882 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.17 using 59 PHA bins.
# Reduced chi-squared = 0.8276 for 57 degrees of freedom
# Null hypothesis probability = 8.202085e-01
Photon flux (15-150 keV) in 0.204 sec: 1.35111 ( -0.32691 0.328398 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.32521e-08 ( -5.63209e-09 5.65612e-09 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.184121 ( -1.88884 1.36033 )
Epeak [keV] : 84.4159 ( -23.638 304.038 )
Norm@50keV : 5.44760E-02 ( -0.0544867 0.271105 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.86 using 59 PHA bins.
# Reduced chi-squared = 0.7832 for 56 degrees of freedom
# Null hypothesis probability = 8.806826e-01
Photon flux (15-150 keV) in 0.204 sec: 1.34640 ( -0.32766 0.32933 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.3153e-08 ( -5.73389e-09 5.75137e-09 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 0.179035 ( -0.939039 2.64568 )
beta : -10.0000 ( 10 7.10543e-15 )
Epeak [keV] : 84.4985 ( -22.319 163.211 )
Norm@50keV : 5.42063E-02 ( -0.0542063 0.270792 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.86 using 59 PHA bins.
# Reduced chi-squared = 0.7974 for 55 degrees of freedom
# Null hypothesis probability = 8.597643e-01
Photon flux (15-150 keV) in 0.204 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) = 5.06e-09
S(50-100 keV) = 8.45e-09
T90 vs. Hardness ratio plot
T90 = 0.187999904155731 sec.
Hardness ratio (energy fluence ratio) = 1.66996
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 2.29836
Count Ratio (50-100 keV) / (15-25 keV) = 2.50238
Mask shadow pattern
IMX = 3.638718056106555E-01, IMY = 1.441658461201686E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
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:
-203.579410 0.016000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5551 -40.6059 3.2 33.6 158.1 1.1350 3.6 3.3 Vela X-1
170.2996 -60.6235 1.6 18.5 -140.3 1.3286 7.0 0.5 Cen X-3
186.8384 -62.8406 4.1 20.9 -117.1 0.6206 2.8 6.5 GX 301-2
178.4973 -62.5154 2.8 18.9 -126.8 0.8535 4.1 ------ UNKNOWN
207.6417 -77.0289 3.2 16.9 -68.8 0.7556 3.7 ------ UNKNOWN
201.2977 -60.9540 2.5 26.4 -105.9 1.2090 4.6 ------ UNKNOWN
181.9710 -23.7274 3.2 56.0 -148.7 4.4104 3.7 ------ UNKNOWN
186.1118 -26.8173 2.9 53.9 -143.4 5.0088 4.0 ------ UNKNOWN
210.8132 -45.6014 2.8 42.5 -109.9 3.5411 4.1 ------ UNKNOWN
196.4193 -35.6798 2.7 48.0 -129.2 4.5444 4.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.016000 0.220000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.4424 -40.3948 4.4 33.8 157.9 0.0218 2.6 10.4 Vela X-1
170.6735 -60.7430 0.0 18.5 -139.6 -0.0063 -1.1 12.7 Cen X-3
186.3680 -62.8374 7.8 20.8 -117.6 0.0091 1.5 8.9 GX 301-2
25.6561 -46.5731 2.5 50.6 35.1 0.1261 4.6 ------ UNKNOWN
19.6603 -82.7615 1.6 20.0 -2.3 0.0405 7.0 ------ UNKNOWN
170.5801 -20.1961 2.3 57.2 -162.0 0.1309 5.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
57.820600 962.760000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.6446 -40.5690 3.7 52.9 169.7 7.2748 3.1 5.4 Vela X-1
170.3144 -60.5774 1.7 35.9 -155.6 5.8880 7.0 2.7 Cen X-3
186.3721 -62.8242 3.7 34.2 -142.1 2.4688 3.1 8.4 GX 301-2
24.1365 -72.6115 2.6 10.2 56.1 2.5154 4.5 ------ UNKNOWN
78.6394 -85.1540 2.9 6.3 -172.8 2.2179 4.0 ------ UNKNOWN
344.1703 -71.4784 2.9 13.3 -4.7 2.1454 4.0 ------ UNKNOWN
327.2915 -30.6638 2.9 55.1 -7.5 7.0212 3.9 ------ UNKNOWN
180.7007 -70.0255 2.6 26.9 -145.6 2.9512 4.4 ------ UNKNOWN
318.6399 -28.7925 3.5 57.9 -16.2 9.8095 3.3 ------ UNKNOWN
292.6058 -39.2397 3.9 50.8 -44.4 10.7020 3.0 ------ UNKNOWN
202.2818 -49.2261 3.0 48.0 -129.1 12.5855 3.8 ------ UNKNOWN
Plot creation:
Mon May 2 14:51:45 EDT 2016