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
307.1151 52.9891 0.0080 15.2268 -179.9059 3.0567484 24.274 TRIG_00948361
Foreground time interval of the image:
-31.448 50.653 (delta_t = 82.101 [sec])
Background time interval of the image:
-239.448 -31.448 (delta_t = 208.000 [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 -31.448 sec. to 112.552 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.30504 ( -0.137286 0.136229 )
Norm@50keV : 1.49306E-03 ( -0.00010931 0.00010922 )
------------------------------------------------------------
Photon flux (15-150 keV) in 144 sec: 0.178295 ( -0.013477 0.013522 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.12223e-06 ( -1.73988e-07 1.7536e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -31.448 sec. to 112.552 sec.
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.30629 ( -0.142683 0.132644 )
Epeak [keV] : 9999.36 ( -9999.36 -9999.36 )
Norm@50keV : 1.49626E-03 ( -0.000109275 0.000570617 )
------------------------------------------------------------
Photon flux (15-150 keV) in 144 sec: 0.179262 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 2.13306e-06 ( -2.36254e-07 2.15182e-07 ) ergs/cm2
Band function
Time interval is from -31.448 sec. to 112.552 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] : 18.1148 (-1.94514 2.26601)
R^2/D10^2 : 1.06647E-02 (-0.00344171 0.0049677)
(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 1.007e-07 1.536e-08
25- 50 4.679e-07 5.285e-08
50-150 1.116e-06 1.665e-07
15-150 1.685e-06 1.764e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-21.5772 -200)
Norm : 0.737606 (-0.0544755 0.0544755)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.645e-07 2.203e-08
25- 50 5.089e-07 6.170e-08
50-150 1.116e-06 3.345e-07
15-150 1.890e-06 4.146e-07
Double BB
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.90384 (-1.64951 2.00509)
R1^2/D10^2 : 0.186034 (-0.106396 0.319807)
kT2 [keV] : 32.6979 (-7.13203 15.2576)
R2^2/D10^2 : 1.34858E-03 (-0.000907217 0.00166047)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.329e-07 8.180e-08
25- 50 4.657e-07 1.152e-07
50-150 1.468e-06 4.910e-07
15-150 2.167e-06 5.482e-07
Peak spectrum fit
Power-law model
Time interval is from 8.052 sec. to 9.052 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.30127 ( -0.373948 0.364142 )
Norm@50keV : 5.86953E-03 ( -0.00132906 0.00132552 )
------------------------------------------------------------
Photon flux (15-150 keV) in 1 sec: 0.700427 ( -0.159503 0.159912 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.79896e-08 ( -1.44163e-08 1.47197e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 8.052 sec. to 9.052 sec.
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.203971 ( -2.19253 1.26409 )
Epeak [keV] : 78.7575 ( -28.2282 -78.7575 )
Norm@50keV : 2.19539E-02 ( -0.0219538 0.261604 )
------------------------------------------------------------
Photon flux (15-150 keV) in 1 sec: 0.674839 ( -0.16324 0.16394 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.27036e-08 ( -1.52908e-08 1.64285e-08 ) ergs/cm2
Band function
Time interval is from 8.052 sec. to 9.052 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] : 15.6911 (-3.63065 5.1457)
R^2/D10^2 : 7.30637E-02 (-0.045801 0.108708)
(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 3.735e-09 1.878e-09
25- 50 1.545e-08 6.190e-09
50-150 2.639e-08 1.405e-08
15-150 4.558e-08 1.927e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.357 (-95.9247 -199.361)
Norm : 2.90169 (-0.653582 0.654997)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.225e-09 4.351e-09
25- 50 1.390e-08 8.075e-09
50-150 3.048e-08 1.784e-08
15-150 5.161e-08 3.075e-08
Double BB
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 25.8703 (-25.1095 -25.1095)
R1^2/D10^2 : 9.50625E-03 (-0.0107979 0.0947938)
kT2 [keV] : 8.56889 (-8.34419 -8.34419)
R2^2/D10^2 : 0.317862 (-0.336756 -0.336756)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.506e-09 3.467e-09
25- 50 1.495e-08 8.720e-09
50-150 3.375e-08 1.862e-08
15-150 5.420e-08 2.787e-08
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: 1.29594 ( -0.121936 0.121087 )
Norm@50keV : 2.28245E-03 ( -0.000148576 0.000148519 )
------------------------------------------------------------
Photon flux (15-150 keV) in 82.1 sec: 0.272100 ( -0.0183649 0.0184294 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.85359e-06 ( -1.34843e-07 1.3564e-07 ) ergs/cm2
Cutoff power-law model
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.29227 ( -0.280232 0.16085 )
Epeak [keV] : 1.00000E+04 ( -10000 -10000 )
Norm@50keV : 2.29196E-03 ( -0.000149039 0.000148952 )
------------------------------------------------------------
Photon flux (15-150 keV) in 82.1 sec: 0.271990 ( -0.018024 0.018406 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.8497e-06 ( -1.31081e-07 1.37074e-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) = 4.74e-07
S(50-100 keV) = 7.68e-07
T90 vs. Hardness ratio plot
T90 = 112 sec.
Hardness ratio (energy fluence ratio) = 1.62025
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.40531
Count Ratio (50-100 keV) / (15-25 keV) = 1.20653
Mask shadow pattern
IMX = -2.721954509414319E-01, IMY = 4.470945750418586E-04
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:
-239.448000 -31.448000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4644 35.3360 404.5 25.8 -17.9 0.0066 0.0 0.5 Her X-1
299.6511 35.1615 3.4 21.3 -120.8 0.9424 3.4 3.8 Cyg X-1
308.0308 41.1017 6.2 21.0 -145.5 -0.4177 -1.9 9.6 Cyg X-3
326.2176 38.1773 41.9 33.6 -160.5 0.0838 0.3 8.9 Cyg X-2
40.0314 81.4553 2.3 42.2 113.7 4.7675 4.9 ------ UNKNOWN
235.4964 20.3405 2.1 47.9 -11.4 2.3405 5.4 ------ UNKNOWN
277.8106 10.3284 3.1 42.2 -71.6 3.8372 3.7 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-31.448000 50.652600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6980 35.3037 81.6 25.7 -18.3 0.0207 0.1 12.0 Her X-1
299.5734 35.3336 9.2 21.2 -120.9 0.1993 1.3 8.0 Cyg X-1
308.1433 41.0942 16.8 21.1 -145.6 0.0947 0.7 8.6 Cyg X-3
325.9260 38.2450 0.0 33.4 -160.3 0.1520 1.0 12.4 Cyg X-2
307.1151 52.9891 0.5 15.2 -179.9 3.0568 24.2 ------ UNKNOWN
237.3201 11.8851 2.6 53.9 -19.4 1.9711 4.5 ------ UNKNOWN
328.1570 15.0088 2.2 52.2 -139.6 3.5139 5.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
89.252590 962.593700
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4644 35.3502 68.1 40.6 -20.4 -0.1868 -0.2 0.6 Her X-1
299.5628 35.1686 2.4 18.6 -86.6 4.7188 4.8 2.4 Cyg X-1
308.1928 41.0200 4.7 12.0 -110.1 1.9887 2.4 5.5 Cyg X-3
326.1256 38.4029 3.6 19.6 -155.7 2.4574 3.2 5.3 Cyg X-2
41.0307 74.7226 3.9 40.6 97.5 8.5783 3.0 ------ UNKNOWN
230.2918 35.6158 4.0 54.8 -1.9 7.7537 2.9 ------ UNKNOWN
354.1965 11.9970 2.9 55.5 -166.7 10.4748 4.0 ------ UNKNOWN
Plot creation:
Mon Jun 1 00:41:41 EDT 2020