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
212.6047 -11.6384 0.0191 47.5446 -3.2952 3.2970167 10.082 TRIG_00846299
Foreground time interval of the image:
0.260 133.044 (delta_t = 132.784 [sec])
Background time interval of the image:
-239.000 0.260 (delta_t = 239.260 [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
8 ms binning
From T100_start-3 s to T100_start+3 s
2 ms binning
From T100_start-1 s to T100_start+1 s
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 0.260 sec. to 133.044 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.62525 ( -0.216248 0.218807 )
Norm@50keV : 1.64702E-03 ( -0.00020974 0.000209006 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.32 using 59 PHA bins.
# Reduced chi-squared = 0.9179 for 57 degrees of freedom
# Null hypothesis probability = 6.508868e-01
Photon flux (15-150 keV) in 132.8 sec: 0.213347 ( -0.028502 0.028673 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.03985e-06 ( -2.70888e-07 2.7226e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.260 sec. to 133.044 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.12341 ( -1.03814 0.668672 )
Epeak [keV] : 90.8202 ( -38.0095 -90.8203 )
Norm@50keV : 2.89880E-03 ( -0.000927615 0.00612164 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.36 using 59 PHA bins.
# Reduced chi-squared = 0.9171 for 56 degrees of freedom
# Null hypothesis probability = 6.509487e-01
Photon flux (15-150 keV) in 132.8 sec: 0.208131 ( -0.029936 0.030037 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.98503e-06 ( -2.90698e-07 2.89011e-07 ) ergs/cm2
Band function
Time interval is from 0.260 sec. to 133.044 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] : 15.1579 (-2.14654 2.53338)
R^2/D10^2 : 2.27177E-02 (-0.00980763 0.0168952)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.60 using 59 PHA bins.
# Reduced chi-squared = 1.116 for 57 degrees of freedom
# Null hypothesis probability = 2.552810e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.449e-07 3.572e-08
25- 50 5.812e-07 9.993e-08
50-150 9.130e-07 2.110e-07
15-150 1.639e-06 2.870e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 170.134 (-70.4875 -169.058)
Norm : 0.870666 (-0.120106 0.144548)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.43 using 59 PHA bins.
# Reduced chi-squared = 0.9023 for 57 degrees of freedom
# Null hypothesis probability = 6.831677e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.934e-07 1.629e-07
25- 50 5.534e-07 2.977e-07
50-150 1.148e-06 6.387e-07
15-150 1.995e-06 1.078e-06
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.37226 (-2.62948 4.04114)
R1^2/D10^2 : 0.292696 (-0.228717 2.19693)
kT2 [keV] : 22.2479 (-5.52282 21.4944)
R2^2/D10^2 : 4.57917E-03 (-0.00419402 0.00971332)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.61 using 59 PHA bins.
# Reduced chi-squared = 0.9384 for 55 degrees of freedom
# Null hypothesis probability = 6.049515e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.829e-07 1.575e-07
25- 50 5.529e-07 2.760e-07
50-150 1.121e-06 6.280e-07
15-150 1.957e-06 1.015e-06
Peak spectrum fit
Power-law model
Time interval is from 3.264 sec. to 4.264 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.74466 ( -0.704125 0.853307 )
Norm@50keV : 5.90895E-03 ( -0.00273216 0.00254552 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 42.32 using 59 PHA bins.
# Reduced chi-squared = 0.7424 for 57 degrees of freedom
# Null hypothesis probability = 9.265787e-01
Photon flux (15-150 keV) in 1 sec: 0.797461 ( -0.328344 0.331099 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.45494e-08 ( -2.42475e-08 2.51784e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 3.264 sec. to 4.264 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.808361 ( -8.09071 1.42233 )
Epeak [keV] : 69.6172 ( -69.7456 -69.7456 )
Norm@50keV : 1.62446E-02 ( -0.0162466 8.91626 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 41.98 using 59 PHA bins.
# Reduced chi-squared = 0.7497 for 56 degrees of freedom
# Null hypothesis probability = 9.177562e-01
Photon flux (15-150 keV) in 1 sec: 0.759325 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.31153e-08 ( -2.32078e-08 2.55005e-08 ) ergs/cm2
Band function
Time interval is from 3.264 sec. to 4.264 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] : 16.7066 (-6.17426 8.75247)
R^2/D10^2 : 6.15830E-02 (-0.0615837 0.240297)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 42.69 using 59 PHA bins.
# Reduced chi-squared = 0.7490 for 57 degrees of freedom
# Null hypothesis probability = 9.204712e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.517e-09 2.367e-09
25- 50 1.534e-08 9.980e-09
50-150 3.040e-08 2.105e-08
15-150 4.926e-08 3.142e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 148.300 (-101.67 -137.178)
Norm : 3.20313 (-1.39774 2.6186)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 42.11 using 59 PHA bins.
# Reduced chi-squared = 0.7387 for 57 degrees of freedom
# Null hypothesis probability = 9.299040e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.989e-09 4.918e-09
25- 50 1.524e-08 9.280e-09
50-150 3.265e-08 2.016e-08
15-150 5.588e-08 3.413e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.81668 (-3.76431 15.6514)
R1^2/D10^2 : 10.9970 (-11.5467 69.7937)
kT2 [keV] : 19.6116 (-7.09873 15.3362)
R2^2/D10^2 : 3.08840E-02 (-0.0314062 0.126762)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 40.37 using 59 PHA bins.
# Reduced chi-squared = 0.7339 for 55 degrees of freedom
# Null hypothesis probability = 9.302315e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.024e-08 6.645e-09
25- 50 1.384e-08 7.830e-09
50-150 3.227e-08 2.058e-08
15-150 5.635e-08 3.237e-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: 1.62525 ( -0.216248 0.218807 )
Norm@50keV : 1.64702E-03 ( -0.00020974 0.000209006 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.32 using 59 PHA bins.
# Reduced chi-squared = 0.9179 for 57 degrees of freedom
# Null hypothesis probability = 6.508868e-01
Photon flux (15-150 keV) in 132.8 sec: 0.213340 ( -0.0285001 0.0286695 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.03954e-06 ( -2.70847e-07 2.72316e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.12341 ( -1.03814 0.668672 )
Epeak [keV] : 90.8204 ( -38.0117 -90.8204 )
Norm@50keV : 2.89880E-03 ( -0.000927614 0.00612164 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.36 using 59 PHA bins.
# Reduced chi-squared = 0.9171 for 56 degrees of freedom
# Null hypothesis probability = 6.509487e-01
Photon flux (15-150 keV) in 132.8 sec: 0.208104 ( -0.029926 0.030009 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.98575e-06 ( -2.90819e-07 2.89225e-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) = 5.35e-07
S(50-100 keV) = 6.93e-07
T90 vs. Hardness ratio plot
T90 = 106.783999919891 sec.
Hardness ratio (energy fluence ratio) = 1.29533
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.28447
Count Ratio (50-100 keV) / (15-25 keV) = 1.21453
Mask shadow pattern
IMX = 1.091209393467349E+00, IMY = 6.282735345596860E-02
TIME vs. PHA plot around the trigger time
TIME vs. DetID plot around the trigger time
100 us light curve (15-350 keV)
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:
-239.000000 0.260000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.4856 -60.5900 4.4 38.8 -92.5 2.7541 2.7 5.4 Cen X-3
186.7897 -62.7882 3.7 30.8 -92.9 1.2443 3.1 3.8 GX 301-2
244.9918 -15.6305 0.6 36.8 42.1 8.7873 19.4 0.9 Sco X-1
256.0225 -38.0265 3.8 17.0 76.3 0.8129 3.1 11.1 4U 1700-377
256.4310 -36.3873 3.5 18.6 74.8 0.9121 3.3 2.2 GX 349+2
262.9824 -24.6580 14.9 31.6 75.3 0.3449 0.8 5.4 GX 1+4
264.6674 -44.2715 13.7 16.4 108.0 -0.2041 -0.8 11.2 4U 1735-44
270.1614 -25.1713 4.6 34.0 86.4 1.3921 2.5 8.7 GX 5-1
270.2266 -25.6206 16.9 33.7 86.9 -0.4022 -0.7 8.4 GRS 1758-258
275.8907 -30.1774 5.2 32.7 99.2 -1.0758 -2.2 11.5 H1820-303
262.8867 -33.8552 11.2 23.3 84.3 0.3257 1.0 5.3 GX 354-0
310.7054 -62.5079 3.1 35.9 172.3 1.2984 3.8 ------ UNKNOWN
349.7441 -71.2545 2.7 46.1 -166.3 1.9625 4.3 ------ UNKNOWN
215.2671 -62.7585 2.6 17.9 -97.1 1.1097 4.4 ------ UNKNOWN
32.1744 -68.2443 4.1 57.2 -154.1 4.5146 2.8 ------ UNKNOWN
87.2551 -76.4909 3.1 50.2 -133.8 6.4571 3.8 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.260000 133.044000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.4747 -60.7170 4.5 38.7 -92.7 -1.3732 -2.6 7.3 Cen X-3
186.3052 -62.8207 11.2 31.0 -93.0 0.2828 1.0 10.1 GX 301-2
244.9706 -15.8117 28.7 36.6 42.1 0.1347 0.4 10.3 Sco X-1
256.2072 -37.8041 9.8 17.2 76.3 -0.2134 -1.2 10.7 4U 1700-377
256.4477 -36.4955 4.7 18.5 74.9 -0.4736 -2.5 4.4 GX 349+2
262.8893 -24.8211 29.7 31.4 75.2 -0.1205 -0.4 7.9 GX 1+4
264.6948 -44.2424 0.0 16.4 107.9 0.1489 0.8 12.6 4U 1735-44
270.1486 -25.0390 20.5 34.1 86.3 -0.2054 -0.6 7.7 GX 5-1
270.3428 -25.8470 11.1 33.5 87.3 -0.3623 -1.0 6.6 GRS 1758-258
275.7186 -30.4367 0.0 32.4 99.3 -0.7175 -2.2 11.5 H1820-303
263.2054 -33.8268 4.1 23.5 84.8 -0.6043 -2.8 10.8 GX 354-0
216.3679 -17.4226 1.9 40.8 -2.0 1.5407 6.1 ------ UNKNOWN
212.6044 -11.6387 1.1 47.5 -3.3 3.2943 10.1 ------ UNKNOWN
219.2599 -33.3106 2.3 25.6 -12.3 0.8044 5.0 ------ UNKNOWN
356.3107 -59.6778 2.8 55.8 -175.1 3.1511 4.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
300.300580 863.800580
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.2425 35.3991 4.8 15.8 144.3 -0.8851 -2.4 11.1 Her X-1
299.7539 35.1378 15.2 31.1 44.8 0.3978 0.8 8.9 Cyg X-1
308.1580 40.9555 5.3 33.0 28.6 1.1631 2.2 2.2 Cyg X-3
326.2534 38.1991 28.3 46.1 19.7 0.3118 0.4 8.3 Cyg X-2
336.6213 34.0717 2.4 55.2 17.1 9.4242 4.7 ------ UNKNOWN
233.9879 7.4959 2.3 48.6 158.8 6.4051 5.0 ------ UNKNOWN
294.5688 38.5031 2.9 25.8 44.8 1.7148 4.0 ------ UNKNOWN
188.9494 49.1184 2.9 45.4 -121.2 8.6854 3.9 ------ UNKNOWN
Plot creation:
Mon Aug 6 22:35:30 EDT 2018