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
302.7043 -45.3484 0.0088 15.5949 33.1390 1.8240761 21.789 TRIG_00977310
Foreground time interval of the image:
-11.916 23.861 (delta_t = 35.777 [sec])
Background time interval of the image:
-234.939 -11.916 (delta_t = 223.023 [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 2.048000
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 2.048000
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 2.048000
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
Multiple GTIs in the spectrum
tstart tstop
-11.916000 200.328000
201.760000 433.432000
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.38569 ( -0.0904758 0.0905225 )
Norm@50keV : 1.29071E-03 ( -6.34442e-05 6.33405e-05 )
------------------------------------------------------------
Photon flux (15-150 keV) in 443.9 sec: 0.156685 ( -0.007882 0.007894 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.55337e-06 ( -3.04746e-07 3.066e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-11.916000 200.328000
201.760000 433.432000
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.05098 ( -0.383139 0.330061 )
Epeak [keV] : 148.171 ( -52.7373 -148.171 )
Norm@50keV : 1.86957E-03 ( -0.000593355 0.00095221 )
------------------------------------------------------------
Photon flux (15-150 keV) in 443.9 sec: 0.153479 ( -0.008563 0.008547 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.40164e-06 ( -3.445e-07 3.44485e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-11.916000 200.328000
201.760000 433.432000
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
XSPEC12>exit
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 16.8101 ( )
R^2/D10^2 : 1.20383E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.085e-07 2.985e-08
25- 50 1.353e-06 9.633e-08
50-150 2.719e-06 2.559e-07
15-150 4.380e-06 2.495e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-15.4747 -200)
Norm : 0.646206 (-0.031522 0.031522)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.143e-07 4.173e-08
25- 50 1.374e-06 8.279e-08
50-150 3.013e-06 4.699e-07
15-150 5.102e-06 5.937e-07
Double BB
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.39591 (-1.06934 1.42848)
R1^2/D10^2 : 0.336257 (-0.19516 0.510285)
kT2 [keV] : 22.6013 (-2.39766 3.45562)
R2^2/D10^2 : 3.89805E-03 (-0.00157731 0.0019435)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.492e-07 1.948e-07
25- 50 1.250e-06 1.907e-07
50-150 3.334e-06 4.825e-07
15-150 5.234e-06 6.599e-07
Peak spectrum fit
Power-law model
Time interval is from 432.432 sec. to 433.432 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.21595 ( -0.613349 0.582462 )
Norm@50keV : 8.38064E-03 ( -0.00297593 0.00297969 )
------------------------------------------------------------
Photon flux (15-150 keV) in 1 sec: 0.986008 ( -0.36006 0.363382 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.46525e-08 ( -3.20919e-08 3.27832e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 432.432 sec. to 433.432 sec.
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.131218 ( -5.11153 7.36045 )
Epeak [keV] : 82.7414 ( )
Norm@50keV : 3.76766E-02 ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 1 sec: 0.943266 ( -0.363306 0.371504 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.82438e-08 ( -3.50133e-08 3.53514e-08 ) ergs/cm2
Band function
Time interval is from 432.432 sec. to 433.432 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
XSPEC12>exit
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 17.2656 (-5.95127 10.8827)
R^2/D10^2 : 7.69641E-02 (-0.0769675 0.245856)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.652e-09 3.108e-09
25- 50 2.084e-08 1.293e-08
50-150 4.457e-08 3.062e-08
15-150 7.006e-08 4.407e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.361 (-122.529 -199.362)
Norm : 4.12599 (-1.48704 1.49048)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.027e-08 6.715e-09
25- 50 1.976e-08 1.243e-08
50-150 4.335e-08 2.779e-08
15-150 7.338e-08 4.572e-08
Double BB
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 1.00002E-04 (2.709e-08 -0.000100002)
R1^2/D10^2 : 3.06058E+07 (-3.06058e+07 -3.06058e+07)
kT2 [keV] : 17.2624 (-5.95011 10.8839)
R2^2/D10^2 : 7.70123E-02 (-0.0769847 0.245839)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.903e-09 1.714e+03
25- 50 2.139e-08 1.356e+04
50-150 4.238e-08 3.716e+05
15-150 6.867e-08 2.871e+05
Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)
Power-law model
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.17427 ( -0.114818 0.113905 )
Norm@50keV : 3.50098E-03 ( -0.000220779 0.000220779 )
------------------------------------------------------------
Photon flux (15-150 keV) in 35.78 sec: 0.409517 ( -0.0265102 0.0265508 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.28029e-06 ( -9.09349e-08 9.15607e-08 ) ergs/cm2
Cutoff power-law model
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.644748 ( -0.523868 0.464526 )
Epeak [keV] : 138.150 ( -43.7841 478.891 )
Norm@50keV : 6.18882E-03 ( -0.00238686 0.00449241 )
------------------------------------------------------------
Photon flux (15-150 keV) in 35.78 sec: 0.397799 ( -0.028433 0.028393 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.2307e-06 ( -1.02495e-07 1.0207e-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) = 1.30e-06
S(50-100 keV) = 1.98e-06
T90 vs. Hardness ratio plot
T90 = 425.923999905586 sec.
Hardness ratio (energy fluence ratio) = 1.52308
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.33003
Count Ratio (50-100 keV) / (15-25 keV) = 1.17393
Mask shadow pattern
IMX = 2.337107950976979E-01, IMY = -1.525807502577834E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
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:
-234.939410 -11.916000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
264.5296 -44.4666 4.5 37.8 70.0 1.9923 2.5 9.2 4U 1735-44
270.2293 -24.9710 7.1 35.3 103.7 1.0128 1.6 7.1 GX 5-1
270.4327 -25.8641 4.5 34.9 102.3 -1.5424 -2.6 10.1 GRS 1758-258
274.0279 -14.0057 40.4 36.9 123.1 0.2012 0.3 2.2 GX 17+2
275.8213 -30.4624 7.1 29.2 96.0 0.7055 1.6 7.8 H1820-303
284.8728 -24.9423 25.2 22.8 112.9 0.1659 0.5 9.0 HT1900.1-2455
288.6924 10.8958 10.1 46.4 164.9 0.8710 1.1 6.9 GRS 1915+105
263.0062 -33.7600 3.8 39.4 87.1 3.4886 3.0 4.6 GX 354-0
256.7581 -74.0997 2.7 50.7 30.6 4.8549 4.2 ------ UNKNOWN
352.5999 -82.6056 2.4 53.9 8.0 4.1884 4.8 ------ UNKNOWN
32.4585 -72.6478 2.4 58.6 -6.1 7.3592 4.8 ------ UNKNOWN
334.9011 -48.2769 3.4 25.9 -26.1 1.0208 3.4 ------ UNKNOWN
12.9987 -63.5998 2.8 50.9 -16.6 2.4542 4.1 ------ UNKNOWN
339.6037 -21.6047 2.6 28.1 -87.6 1.8384 4.4 ------ UNKNOWN
6.8600 -36.1815 3.4 47.2 -53.2 4.4558 3.4 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-11.916000 23.860600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
264.7550 -44.5756 6.0 37.7 69.8 -0.4178 -1.9 7.6 4U 1735-44
270.4409 -25.1408 7.6 35.1 103.5 -0.2847 -1.5 9.3 GX 5-1
270.4135 -25.8719 4.1 34.9 102.3 0.5261 2.9 9.8 GRS 1758-258
273.9949 -14.1584 7.4 36.8 122.9 0.3054 1.6 7.4 GX 17+2
275.7438 -30.4485 11.0 29.2 96.0 -0.1445 -1.0 10.6 H1820-303
284.9413 -24.7989 9.0 22.8 113.3 0.1329 1.3 8.9 HT1900.1-2455
288.7137 10.8024 6.0 46.3 164.9 -0.3974 -1.9 9.9 GRS 1915+105
263.0284 -33.9611 4.7 39.3 86.8 -0.8049 -2.4 7.8 GX 354-0
302.7043 -45.3484 0.5 15.6 33.1 1.8241 21.8 ------ UNKNOWN
347.3586 -22.7962 1.9 34.3 -80.0 1.0861 6.0 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
75.460600 200.328000
201.760000 376.260600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
256.1157 -37.7680 13.5 35.1 66.8 0.5412 0.8 7.6 4U 1700-377
256.3908 -36.3921 8.4 35.6 69.0 0.9475 1.4 2.8 GX 349+2
262.7991 -24.7307 0.0 38.0 90.3 0.9960 0.8 11.5 GX 1+4
264.7418 -44.2383 0.0 26.7 59.8 0.7658 1.7 12.7 4U 1735-44
270.1329 -25.1345 11.3 33.0 97.8 0.6183 1.0 8.9 GX 5-1
270.2730 -25.7226 2.9 32.5 97.2 2.3458 4.0 2.0 GRS 1758-258
274.0597 -14.2022 0.0 39.4 114.1 -1.6330 -1.6 10.4 GX 17+2
275.9183 -30.3335 176.0 25.7 97.6 0.0294 0.1 2.0 H1820-303
285.0346 -25.0764 6.2 24.8 120.2 -0.8109 -1.9 9.4 HT1900.1-2455
262.8213 -33.8451 4.8 32.4 77.8 1.4238 2.4 8.4 GX 354-0
198.5501 -68.3262 2.3 53.3 7.6 4.6341 5.1 ------ UNKNOWN
231.0129 -70.1071 3.0 41.9 10.0 1.8009 3.8 ------ UNKNOWN
302.7263 -45.3407 1.0 0.1 -134.3 3.6836 12.0 ------ UNKNOWN
347.3675 -74.3233 2.9 34.9 -38.3 1.7623 3.9 ------ UNKNOWN
340.1052 -4.8362 3.1 52.0 -148.6 4.3260 3.7 ------ UNKNOWN
358.2000 -52.5495 2.9 36.2 -76.9 3.1855 4.0 ------ UNKNOWN
352.7056 -32.8906 3.9 40.1 -109.1 3.3991 2.9 ------ UNKNOWN
345.5041 -8.1948 3.3 52.3 -140.6 5.5062 3.5 ------ UNKNOWN
Plot creation:
Wed Jul 1 20:06:07 EDT 2020