Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
277.6969 -6.7611 0.0295 20.9 -141.5 0.0179 6.5 TRIG_00999571
------------------------------------------
Foreground time interval of the image:
0.000 0.008 (delta_t = 0.008 [sec])
Background time interval of the image:
-239.916 -5.916 (delta_t = 234.000 [sec])
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) 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.
- 5) 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.
- 6) 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 0.008000
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 0.008000
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 0.008000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of 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.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Time interval is from 0.000 sec. to 0.008 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.22059 ( -0.405365 0.535237 )
Norm@50keV : 0.102994 ( -0.0385387 0.035778 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: 17.2377 ( -4.77862 4.77879 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.77008e-09 ( -2.46609e-09 2.4915e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.008 sec.
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -3.38876 ( 2.1241 4.12303 )
Epeak [keV] : 36.1133 ( -19.7809 16.7473 )
Norm@50keV : 263.510 ( -250.721 3.99324e+06 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: 16.8740 ( -4.6816 4.7679 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.97788e-09 ( -2.01804e-09 2.71812e-09 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 0.008 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.69916 ( -13.4667 -4.69916 )
beta : -3.65352 ( 3.65352 1.19117 )
Epeak [keV] : 34.2309 ( -5.963 6.26761 )
Norm@50keV : 2155.11 ( -570.24 13141.1 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.77549e-09 ( 0 0 ) ergs/cm2
Single BB
XSPEC12>exit
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.30208 (-1.86046 2.24449)
R^2/D10^2 : 12.4181 (-7.28359 16.1071)
(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 1.701e-09 8.046e-10
25- 50 3.804e-09 1.700e-09
50-150 1.604e-09 1.125e-09
15-150 7.108e-09 2.807e-09
Thermal bremsstrahlung (OTTB)
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 51.6899 (-24.0234 51.8222)
Norm : 101.332 (-36.1633 56.4673)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.997e-09 7.424e-10
25- 50 2.902e-09 1.129e-09
50-150 2.906e-09 1.848e-09
15-150 7.804e-09 3.305e-09
Double BB
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 0.795247 (-0.79305 1.69632)
R1^2/D10^2 : 4.83960E+08 (-5.14863e+08 -5.14894e+08)
kT2 [keV] : 9.71922 (-1.9617 2.61262)
R2^2/D10^2 : 9.98237 (-6.25878 9.74632)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.791e-09 9.460e-10
25- 50 3.586e-09 2.186e-09
50-150 1.769e-09 1.292e-09
15-150 7.146e-09 4.360e-09
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 0.008 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.22059 ( -0.405365 0.535237 )
Norm@50keV : 0.102994 ( -0.0385387 0.035778 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: 17.2377 ( -4.77862 4.77879 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.77008e-09 ( -2.46609e-09 2.4915e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.008 sec.
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -3.38876 ( 2.1241 4.12303 )
Epeak [keV] : 36.1133 ( -19.7809 16.7473 )
Norm@50keV : 263.510 ( -250.721 4.65348e+06 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: 16.8740 ( -4.6816 4.7679 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.97788e-09 ( -2.01804e-09 2.71812e-09 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 0.008 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.69916 ( -6.30985 -4.69916 )
beta : -3.65352 ( 3.65352 1.19117 )
Epeak [keV] : 34.2309 ( -5.963 6.26761 )
Norm@50keV : 2155.11 ( -570.24 13141.1 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.77549e-09 ( 0 0 ) ergs/cm2
Single BB
XSPEC12>exit
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.30208 (-1.86046 2.24449)
R^2/D10^2 : 12.4181 (-7.28359 16.1071)
(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 1.701e-09 7.828e-10
25- 50 3.804e-09 1.688e-09
50-150 1.604e-09 1.088e-09
15-150 7.108e-09 3.134e-09
Thermal bremsstrahlung (OTTB)
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 51.6899 (-24.0234 51.8222)
Norm : 101.332 (-36.1633 56.4673)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.997e-09 7.248e-10
25- 50 2.902e-09 1.278e-09
50-150 2.906e-09 1.942e-09
15-150 7.804e-09 3.560e-09
Double BB
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 0.706983 (-0.70809 1.7053)
R1^2/D10^2 : 3.79226E+09 (-3.46577e+09 1.83892e+14)
kT2 [keV] : 9.69813 (-1.94888 2.55022)
R2^2/D10^2 : 10.0938 (-6.39886 8.74507)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.791e-09 8.947e-10
25- 50 3.586e-09 2.202e-09
50-150 1.769e-09 1.335e-09
15-150 7.146e-09 4.228e-09
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: 2.22059 ( -0.405365 0.535237 )
Norm@50keV : 0.102994 ( -0.0385387 0.035778 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: 17.2377 ( -4.77862 4.77879 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.77008e-09 ( -2.46609e-09 2.4915e-09 ) ergs/cm2
Cutoff power-law model
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -3.38876 ( 2.1241 4.12303 )
Epeak [keV] : 36.1133 ( -19.7809 16.7473 )
Norm@50keV : 263.510 ( -250.721 4.04279e+06 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: 16.8740 ( -4.6816 4.7679 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.97788e-09 ( -2.01804e-09 2.71812e-09 ) ergs/cm2
Band function
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.69916 ( -6.5863 -4.69916 )
beta : -3.65352 ( 3.65352 1.19117 )
Epeak [keV] : 34.2309 ( -5.963 6.26761 )
Norm@50keV : 2155.11 ( -570.24 13141.1 )
------------------------------------------------------------
Photon flux (15-150 keV) in 0.008 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.77549e-09 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 2.47e-09
S(50-100 keV) = 2.12e-09
T90 vs. Hardness ratio plot
T90 = 0.00800001621246338 sec.
Hardness ratio (energy fluence ratio) = 0.8583
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.91504
Count Ratio (50-100 keV) / (15-25 keV) = 0.297643
Mask shadow pattern
IMX = -2.980736922444337E-01, IMY = 2.374333392074235E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.008000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.008000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.008000
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:
-239.916000 -5.916000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6315 35.2904 6.8 39.4 -40.0 0.8271 1.7 9.1 Her X-1
263.0623 -24.6563 7.1 43.6 -138.9 1.0918 1.6 6.1 GX 1+4
268.2507 -1.3247 8.7 23.8 -113.6 0.4998 1.3 10.4 SW J1753.5-0127
270.2537 -25.0668 14.2 40.3 -147.4 0.4512 0.8 1.8 GX 5-1
270.3027 -25.7359 13.7 40.9 -148.0 0.4632 0.8 0.4 GRS 1758-258
274.0195 -14.0324 3.7 29.0 -143.1 1.2226 3.1 0.8 GX 17+2
275.7894 -30.3746 4.8 43.2 -157.4 1.4252 2.4 7.0 H1820-303
285.0662 -24.7696 6.0 35.9 -168.1 0.8680 1.9 9.2 HT1900.1-2455
288.9645 10.8317 16.9 0.2 128.1 0.2250 0.7 11.9 GRS 1915+105
299.4350 35.0556 0.0 26.0 26.5 0.7346 2.0 11.6 Cyg X-1
307.9293 41.0584 15.4 34.5 32.1 0.3616 0.7 10.4 Cyg X-3
326.0456 38.3320 15.2 43.1 50.3 -0.8409 -0.8 6.0 Cyg X-2
263.1381 -33.8833 381.2 51.0 -146.3 -0.0301 -0.0 8.0 GX 354-0
329.5958 16.4504 2.2 40.0 83.6 6.9717 5.2 ------ UNKNOWN
323.7441 3.9587 4.1 35.4 104.9 1.9071 2.8 ------ UNKNOWN
303.0755 -44.3709 3.7 56.8 174.0 5.9911 3.1 ------ UNKNOWN
294.5710 20.6169 2.6 11.2 35.5 1.4225 4.5 ------ UNKNOWN
245.3526 54.6525 2.8 55.4 -22.7 4.4934 4.1 ------ UNKNOWN
251.8908 -13.1464 2.2 43.8 -116.2 6.5596 5.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 0.008000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6437 35.2669 0.0 39.3 -40.0 -0.0014 -0.3 10.2 Her X-1
263.1711 -24.8213 5.1 43.6 -139.2 -0.0138 -2.2 9.9 GX 1+4
268.4028 -1.3087 2.9 23.7 -113.8 0.0139 4.0 8.9 SW J1753.5-0127
270.4413 -25.1792 6.6 40.3 -147.7 0.0083 1.7 10.4 GX 5-1
270.4767 -25.8923 0.0 40.9 -148.3 -0.0070 -1.5 13.0 GRS 1758-258
273.8481 -13.9604 6.2 29.0 -142.8 0.0061 1.9 10.3 GX 17+2
276.0836 -30.4622 32.9 43.2 -157.8 0.0017 0.4 10.0 H1820-303
285.0064 -25.0635 5.0 36.2 -168.0 -0.0080 -2.3 8.7 HT1900.1-2455
288.7159 10.7859 47.0 0.2 -161.2 0.0006 0.2 10.7 GRS 1915+105
299.4643 35.2448 5.3 26.2 26.3 -0.0061 -2.2 6.7 Cyg X-1
308.1701 40.9528 4.4 34.5 32.5 -0.0101 -2.6 2.7 Cyg X-3
326.2360 38.2311 5.6 43.1 50.5 0.0191 2.1 6.2 Cyg X-2
263.1390 -33.8621 12.7 51.0 -146.3 0.0082 0.9 7.6 GX 354-0
309.0222 -21.6662 2.3 38.2 154.8 0.0223 5.1 ------ UNKNOWN
277.6969 -6.7611 1.8 20.9 -141.5 0.0179 6.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
50.784600 757.684590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9795 -15.6325 0.6 33.3 -102.1 23.6305 18.0 0.5 Sco X-1
254.3387 35.4190 3.9 47.6 -19.8 -4.7997 -3.0 7.4 Her X-1
256.1587 -37.9168 8.2 36.8 -144.9 1.6989 1.4 9.2 4U 1700-377
256.2839 -36.4163 5.5 35.5 -143.5 2.4194 2.1 7.3 GX 349+2
262.9645 -24.7966 5.8 22.9 -137.4 1.5969 2.0 3.9 GX 1+4
264.7119 -44.4310 3.8 39.4 -159.2 3.4772 3.1 1.7 4U 1735-44
268.3717 -1.4502 50.4 10.7 -54.5 0.1570 0.2 0.3 SW J1753.5-0127
270.1105 -24.9383 0.0 19.6 -152.9 1.4641 1.6 12.7 GX 5-1
270.2058 -25.6118 3.2 20.2 -153.9 3.2533 3.6 9.5 GRS 1758-258
273.9866 -14.0352 2.7 8.1 -147.5 3.3102 4.3 1.1 GX 17+2
275.7748 -30.2434 6.6 23.6 -169.7 -1.4752 -1.8 10.7 H1820-303
284.9497 -25.0754 10.1 19.6 166.3 0.8528 1.1 10.4 HT1900.1-2455
288.8333 10.9155 5.4 20.9 38.4 1.7049 2.1 2.7 GRS 1915+105
299.5838 35.2010 64.4 46.7 30.9 0.3687 0.2 0.3 Cyg X-1
262.9875 -33.8045 5.9 30.3 -149.1 1.8667 2.0 1.8 GX 354-0
313.0176 -10.7075 4.2 35.1 105.2 4.1151 2.8 ------ UNKNOWN
312.4533 -14.2366 4.0 34.9 111.4 4.3915 2.9 ------ UNKNOWN
293.9035 6.2663 3.1 20.8 57.7 3.8516 3.7 ------ UNKNOWN
267.9525 47.7946 3.6 55.2 -1.8 8.2747 3.2 ------ UNKNOWN
268.4247 -5.3455 3.4 9.3 -75.7 2.4398 3.4 ------ UNKNOWN
Plot creation:
Tue Oct 13 21:01:40 EDT 2020