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
228.0679 -8.1431 0.0142 28.9555 102.3775 3.7006276 13.533 TRIG_00952164
Foreground time interval of the image:
-36.224 51.181 (delta_t = 87.405 [sec])
Background time interval of the image:
-179.520 -36.224 (delta_t = 143.296 [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 8.192000
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 8.192000
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 8.192000
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 -36.224 sec. to 427.736 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.92625 ( -0.0794065 0.0803958 )
Norm@50keV : 1.97480E-03 ( -8.48055e-05 8.41574e-05 )
------------------------------------------------------------
Photon flux (15-150 keV) in 464 sec: 0.286635 ( -0.011211 0.011264 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.42884e-06 ( -3.52435e-07 3.55276e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -36.224 sec. to 427.736 sec.
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.81938 ( -0.307464 0.280538 )
Epeak [keV] : 76.9287 ( -76.6492 -76.9287 )
Norm@50keV : 2.24982E-03 ( -0.000617302 0.000995471 )
------------------------------------------------------------
Photon flux (15-150 keV) in 464 sec: 0.284136 ( -0.012999 0.012157 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.3178e-06 ( -4.568e-07 3.65361e-07 ) ergs/cm2
Band function
Time interval is from -36.224 sec. to 427.736 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] : 11.3532 ( )
R^2/D10^2 : 7.59933E-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 9.550e-07 7.331e-08
25- 50 2.810e-06 1.225e-07
50-150 2.095e-06 1.888e-07
15-150 5.861e-06 2.691e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 83.0166 (-11.3752 14.4753)
Norm : 1.28871 (-0.082639 0.0914291)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.555e-06 9.234e-08
25- 50 2.582e-06 1.018e-07
50-150 3.736e-06 3.923e-07
15-150 7.873e-06 3.828e-07
Double BB
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.67307 (-0.648122 0.709227)
R1^2/D10^2 : 0.786534 (-0.28637 0.501489)
kT2 [keV] : 20.8727 (-2.48723 3.31513)
R2^2/D10^2 : 6.09148E-03 (-0.00258544 0.00386664)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.667e-06 2.264e-07
25- 50 2.457e-06 2.016e-07
50-150 3.968e-06 6.099e-07
15-150 8.091e-06 8.097e-07
Peak spectrum fit
Power-law model
Time interval is from 286.668 sec. to 287.668 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.42834 ( -0.0976247 0.0980997 )
Norm@50keV : 3.09016E-02 ( -0.00177604 0.00177093 )
------------------------------------------------------------
Photon flux (15-150 keV) in 1 sec: 3.78824 ( -0.21397 0.2141 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.96955e-07 ( -1.90861e-08 1.92364e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 286.668 sec. to 287.668 sec.
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.857137 ( -0.444487 0.401904 )
Epeak [keV] : 98.8243 ( -23.8325 110.031 )
Norm@50keV : 6.02877E-02 ( -0.0221856 0.0397545 )
------------------------------------------------------------
Photon flux (15-150 keV) in 1 sec: 3.68417 ( -0.22607 0.2258 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.82319e-07 ( -2.15776e-08 2.17135e-08 ) ergs/cm2
Band function
Time interval is from 286.668 sec. to 287.668 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] : 15.2419 (-1.03795 1.12693)
R^2/D10^2 : 0.412125 (-0.0902643 0.114122)
(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 1.999e-08 2.255e-09
25- 50 8.060e-08 5.805e-09
50-150 1.283e-07 1.495e-08
15-150 2.289e-07 1.615e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-25.4105 -200)
Norm : 15.5524 (-0.86588 0.86588)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.873e-08 2.330e-09
25- 50 7.450e-08 6.915e-09
50-150 1.634e-07 3.465e-08
15-150 2.766e-07 3.780e-08
Double BB
XSPEC12>/*
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.74529 (-1.69426 2.09456)
R1^2/D10^2 : 3.64957 (-2.00508 6.2404)
kT2 [keV] : 23.0609 (-3.72544 7.06831)
R2^2/D10^2 : 7.97269E-02 (-0.0505728 0.0775806)
------------------------------------------------------------
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.330e-08 1.116e-08
25- 50 7.432e-08 1.605e-08
50-150 1.703e-07 4.406e-08
15-150 2.780e-07 6.205e-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: 1.87310 ( -0.161997 0.167346 )
Norm@50keV : 2.75883E-03 ( -0.000270808 0.000265403 )
------------------------------------------------------------
Photon flux (15-150 keV) in 87.4 sec: 0.391477 ( -0.0314982 0.0315403 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.21664e-06 ( -2.13675e-07 2.18056e-07 ) ergs/cm2
Cutoff power-law model
XSPEC: quit
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.85171 ( -0.592292 0.639493 )
Epeak [keV] : 297.804 ( )
Norm@50keV : 2.83459E-03 ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 87.4 sec: 0.391307 ( -0.031199 0.031463 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.20561e-06 ( -2.49711e-07 2.25981e-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) = 2.48e-06
S(50-100 keV) = 2.61e-06
T90 vs. Hardness ratio plot
T90 = 350.335999965668 sec.
Hardness ratio (energy fluence ratio) = 1.05242
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.06133
Count Ratio (50-100 keV) / (15-25 keV) = 0.605934
Mask shadow pattern
IMX = -1.185997824627540E-01, IMY = -5.404326637733795E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000
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:
-179.520000 -36.224000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9755 -15.6410 0.5 10.8 104.3 5.5615 22.0 0.2 Sco X-1
254.3954 35.4952 0.0 55.5 171.1 -1.1240 -0.7 9.7 Her X-1
255.9863 -37.8613 2.9 17.8 -9.5 0.9725 4.0 1.0 4U 1700-377
256.4615 -36.4294 1.9 16.4 -11.1 1.3953 5.9 1.3 GX 349+2
262.9936 -24.7345 14.2 8.5 -62.8 0.1954 0.8 1.1 GX 1+4
264.7523 -44.4250 7.2 25.6 -23.6 0.3940 1.6 1.6 4U 1735-44
268.5175 -1.3230 0.0 22.7 -151.8 -0.0605 -0.2 11.9 SW J1753.5-0127
270.4547 -24.9776 17.3 14.8 -75.6 -0.1762 -0.7 11.1 GX 5-1
270.3413 -25.6568 6.3 14.9 -72.9 -0.4858 -1.8 5.6 GRS 1758-258
274.1613 -13.9451 10.2 19.0 -113.7 0.3127 1.1 10.6 GX 17+2
275.7544 -30.2755 5.3 21.1 -64.8 0.5637 2.2 10.4 H1820-303
285.0513 -24.8738 12.4 27.8 -82.4 -0.3263 -0.9 2.9 HT1900.1-2455
288.6534 11.1198 0.0 45.2 -138.6 1.3566 2.1 13.5 GRS 1915+105
263.1464 -33.9913 13.8 15.6 -32.6 0.2041 0.8 12.2 GX 354-0
223.3780 -3.9909 3.7 35.0 105.1 1.6630 3.1 ------ UNKNOWN
224.4589 -7.7782 3.0 32.3 99.9 1.7382 3.9 ------ UNKNOWN
255.2504 -18.1935 2.9 1.8 168.6 0.8906 4.0 ------ UNKNOWN
243.7030 -63.1354 3.1 43.8 -0.4 1.6892 3.8 ------ UNKNOWN
255.3754 -41.7330 2.6 21.7 -8.0 1.1251 4.5 ------ UNKNOWN
267.3076 -48.5928 2.3 30.1 -23.8 1.3224 5.0 ------ UNKNOWN
272.9033 17.1526 2.4 41.0 -161.9 1.8968 4.8 ------ UNKNOWN
UNKNOWN
UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-36.224000 51.180590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.1089 -15.7807 8.8 10.6 103.9 0.2333 1.3 11.3 Sco X-1
254.5284 35.2159 3.9 55.2 171.2 2.7554 3.0 8.3 Her X-1
256.1396 -38.0102 0.0 18.0 -9.9 -0.4126 -2.4 12.3 4U 1700-377
256.6244 -36.3751 7.8 16.4 -11.5 -0.2538 -1.5 9.6 GX 349+2
263.0089 -24.7460 945.2 8.5 -62.8 -0.0019 -0.0 0.0 GX 1+4
264.6188 -44.5966 10.1 25.7 -23.2 0.2088 1.1 10.3 4U 1735-44
268.5175 -1.3230 0.0 22.7 -151.8 0.2361 1.3 11.9 SW J1753.5-0127
270.4567 -24.9384 0.0 14.8 -75.7 0.3123 1.7 12.6 GX 5-1
270.4536 -25.8920 8.3 15.1 -72.2 0.2604 1.4 12.1 GRS 1758-258
274.0818 -14.1846 11.1 18.8 -113.1 0.2070 1.0 9.9 GX 17+2
275.8186 -30.5129 6.1 21.2 -64.3 0.3668 1.9 10.3 H1820-303
285.0902 -24.9341 16.8 27.8 -82.2 0.1845 0.7 3.1 HT1900.1-2455
288.6556 11.0945 11.7 45.2 -138.5 -0.4198 -1.0 12.3 GRS 1915+105
263.0113 -33.8372 11.4 15.4 -32.6 0.1732 1.0 1.1 GX 354-0
228.0679 -8.1431 0.9 29.0 102.4 3.7002 13.5 ------ UNKNOWN
301.7538 -37.5935 1.8 43.7 -64.0 4.3607 6.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
100.980580 412.980600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9633 -15.6312 0.4 18.1 -81.7 11.5118 27.3 1.1 Sco X-1
254.4588 35.3668 8.7 50.1 -169.4 1.3358 1.3 1.5 Her X-1
255.9880 -37.8431 3.4 38.9 -53.6 2.6302 3.4 0.1 4U 1700-377
256.4786 -36.4817 3.8 38.3 -55.7 2.3577 3.1 4.1 GX 349+2
263.0377 -24.8007 3.1 37.3 -76.8 3.5579 3.7 3.7 GX 1+4
268.2231 -1.4455 9.7 40.5 -115.0 -1.2762 -1.2 8.7 SW J1753.5-0127
262.8856 -33.7172 7.0 41.0 -64.0 -1.8609 -1.7 8.7 GX 354-0
217.6388 30.3898 3.5 39.8 148.3 2.6426 3.3 ------ UNKNOWN
228.0377 -8.1547 0.4 0.0 85.5 12.0567 32.6 ------ UNKNOWN
227.5276 -38.5248 3.2 30.4 -16.7 1.5995 3.6 ------ UNKNOWN
Plot creation:
Mon Jun 1 00:36:54 EDT 2020