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
250.0702 -34.0265 0.0095 22.2724 -122.7599 1.7398844 20.319 TRIG_00921722
Foreground time interval of the image:
-3.308 23.973 (delta_t = 27.281 [sec])
Background time interval of the image:
-239.328 -3.308 (delta_t = 236.020 [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 1.408000
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 1.408000
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 1.408000
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 -3.308 sec. to 59.492 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.01396 ( -0.0962671 0.0981079 )
Norm@50keV : 4.06577E-03 ( -0.000229902 0.000227735 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.30 using 59 PHA bins.
# Reduced chi-squared = 1.058 for 57 degrees of freedom
# Null hypothesis probability = 3.572823e-01
Photon flux (15-150 keV) in 62.8 sec: 0.613859 ( -0.031495 0.03159 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.35689e-06 ( -1.2589e-07 1.26698e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -3.308 sec. to 59.492 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.59588 ( -0.438579 0.395014 )
Epeak [keV] : 43.4382 ( -35.6157 21.6463 )
Norm@50keV : 6.83354E-03 ( -0.00259982 0.004878 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.03 using 59 PHA bins.
# Reduced chi-squared = 1.018 for 56 degrees of freedom
# Null hypothesis probability = 4.365184e-01
Photon flux (15-150 keV) in 62.8 sec: 0.597380 ( -0.034884 0.035009 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.26022e-06 ( -1.53045e-07 1.54409e-07 ) ergs/cm2
Band function
Time interval is from -3.308 sec. to 59.492 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] : 10.7725 ( )
R^2/D10^2 : 0.203469 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 133.21 using 59 PHA bins.
# Reduced chi-squared = 2.3371 for 57 degrees of freedom
# Null hypothesis probability = 4.844836e-08
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.084e-07 2.889e-08
25- 50 8.488e-07 4.961e-08
50-150 5.474e-07 6.877e-08
15-150 1.705e-06 1.011e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 70.1295 (-10.3398 13.3201)
Norm : 2.94801 (-0.251667 0.28149)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.16 using 59 PHA bins.
# Reduced chi-squared = 1.020 for 57 degrees of freedom
# Null hypothesis probability = 4.323965e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.751e-07 3.391e-08
25- 50 7.562e-07 3.894e-08
50-150 9.726e-07 1.221e-07
15-150 2.204e-06 1.294e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.03341 (-1.36637 1.37173)
R1^2/D10^2 : 1.27337 (-0.480962 0.911865)
kT2 [keV] : 19.1476 (-4.00526 6.89636)
R2^2/D10^2 : 1.54518E-02 (-0.0080361 0.0181227)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.94 using 59 PHA bins.
# Reduced chi-squared = 1.144 for 55 degrees of freedom
# Null hypothesis probability = 2.157971e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.596e-07 1.372e-07
25- 50 7.307e-07 1.759e-07
50-150 9.469e-07 3.056e-07
15-150 2.137e-06 6.126e-07
Peak spectrum fit
Power-law model
Time interval is from 29.984 sec. to 30.984 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.93730 ( -0.156293 0.162982 )
Norm@50keV : 1.93656E-02 ( -0.00215357 0.0021229 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.37 using 59 PHA bins.
# Reduced chi-squared = 1.112 for 57 degrees of freedom
# Null hypothesis probability = 2.617972e-01
Photon flux (15-150 keV) in 1 sec: 2.82442 ( -0.26856 0.26872 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.7818e-07 ( -1.91826e-08 1.94077e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 29.984 sec. to 30.984 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.383848 ( -1.02824 0.822581 )
Epeak [keV] : 44.4200 ( -6.13584 8.71384 )
Norm@50keV : 0.147057 ( -0.147829 0.427552 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.08 using 59 PHA bins.
# Reduced chi-squared = 0.9122 for 56 degrees of freedom
# Null hypothesis probability = 6.610400e-01
Photon flux (15-150 keV) in 1 sec: 2.70333 ( -0.27472 0.27546 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.59948e-07 ( -1.95762e-08 2.07278e-08 ) ergs/cm2
Band function
Time interval is from 29.984 sec. to 30.984 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] : 10.7453 (-0.995642 1.10918)
R^2/D10^2 : 1.06186 (-0.334935 0.479062)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.25 using 59 PHA bins.
# Reduced chi-squared = 1.039 for 57 degrees of freedom
# Null hypothesis probability = 3.935954e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.549e-08 4.150e-09
25- 50 6.991e-08 8.110e-09
50-150 4.476e-08 1.124e-08
15-150 1.402e-07 1.685e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 72.0436 (-16.7734 25.6605)
Norm : 13.9886 (-1.90173 2.21338)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.59 using 59 PHA bins.
# Reduced chi-squared = 0.9578 for 57 degrees of freedom
# Null hypothesis probability = 5.658956e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.599e-08 4.490e-09
25- 50 5.771e-08 5.695e-09
50-150 7.571e-08 1.710e-08
15-150 1.694e-07 2.115e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.64627 (-3.79098 3.30277)
R1^2/D10^2 : 3.47949 (-2.2153 74.553)
kT2 [keV] : 15.8708 (-4.53497 28.2759)
R2^2/D10^2 : 0.157918 (-0.153966 0.640642)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.46 using 59 PHA bins.
# Reduced chi-squared = 0.9356 for 55 degrees of freedom
# Null hypothesis probability = 6.108113e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.156e-08 1.674e-08
25- 50 6.325e-08 3.233e-08
50-150 6.437e-08 3.592e-08
15-150 1.592e-07 8.200e-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: 1.85883 ( -0.146792 0.150828 )
Norm@50keV : 3.78366E-03 ( -0.000344006 0.000339626 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 80.03 using 59 PHA bins.
# Reduced chi-squared = 1.404 for 57 degrees of freedom
# Null hypothesis probability = 2.380362e-02
Photon flux (15-150 keV) in 27.28 sec: 0.533752 ( -0.0438905 0.0439748 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.48978e-07 ( -8.58125e-08 8.6764e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.10856 ( -0.778564 0.654991 )
Epeak [keV] : 53.7036 ( -10.8013 56.4996 )
Norm@50keV : 9.62622E-03 ( -0.00529183 0.0156317 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 76.15 using 59 PHA bins.
# Reduced chi-squared = 1.360 for 56 degrees of freedom
# Null hypothesis probability = 3.787959e-02
Photon flux (15-150 keV) in 27.28 sec: 0.513332 ( -0.0473 0.047267 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.86134e-07 ( -9.8699e-08 1.01596e-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) = 7.10e-07
S(50-100 keV) = 7.03e-07
T90 vs. Hardness ratio plot
T90 = 57.095999956131 sec.
Hardness ratio (energy fluence ratio) = 0.990141
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.0415
Count Ratio (50-100 keV) / (15-25 keV) = 0.530447
Mask shadow pattern
IMX = -2.216252074017614E-01, IMY = 3.444242243999509E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.408000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.408000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.408000
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:
-239.328000 -3.308000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0015 -15.6279 0.8 26.0 -76.1 9.3189 14.6 1.5 Sco X-1
255.9842 -37.8451 5.7 20.6 -138.9 0.9916 2.0 0.1 4U 1700-377
256.3453 -36.5630 387.5 19.5 -136.8 0.0147 0.0 9.5 GX 349+2
262.9121 -24.7091 3.7 8.3 -105.1 1.4803 3.1 5.7 GX 1+4
264.8389 -44.5178 10.9 23.0 -163.7 0.5023 1.1 5.8 4U 1735-44
268.2354 -1.6110 0.0 20.9 -5.6 -0.5874 -1.2 12.4 SW J1753.5-0127
270.4484 -25.0566 8.3 3.0 -155.9 0.6339 1.4 9.0 GX 5-1
270.1350 -25.7272 4.6 3.7 -155.5 1.1527 2.5 9.1 GRS 1758-258
274.1603 -14.0459 3.9 8.5 20.9 1.4469 2.9 9.0 GX 17+2
275.9575 -30.2715 5.8 8.9 158.9 0.9425 2.0 6.0 H1820-303
285.1021 -24.9975 18.6 12.7 109.1 -0.3103 -0.6 5.9 HT1900.1-2455
288.7646 11.0275 13.5 37.3 32.5 0.6361 0.9 5.3 GRS 1915+105
262.8893 -33.9818 4.0 14.0 -144.9 1.2115 2.9 10.1 GX 354-0
314.7585 -53.1513 2.6 44.9 148.4 7.9747 4.5 ------ UNKNOWN
320.9730 -62.6852 2.4 52.2 157.7 14.1581 4.7 ------ UNKNOWN
261.2987 3.7578 2.2 27.9 -18.5 2.8155 5.2 ------ UNKNOWN
249.5033 15.9667 2.4 43.9 -27.5 3.7443 4.8 ------ UNKNOWN
227.9967 -60.7343 2.2 48.9 -149.5 6.6771 5.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-3.308000 23.972600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8400 -15.6593 9.4 26.1 -76.2 0.1282 1.2 8.1 Sco X-1
256.0348 -37.9242 7.1 20.6 -139.2 -0.1364 -1.6 5.3 4U 1700-377
256.3308 -36.2685 5.6 19.3 -136.1 0.1728 2.1 10.6 GX 349+2
262.9213 -24.5974 5.6 8.3 -104.3 0.1599 2.0 10.1 GX 1+4
264.9419 -44.5627 10.1 23.0 -163.9 -0.0970 -1.1 10.9 4U 1735-44
268.4457 -1.5979 3.7 20.9 -5.0 -0.2575 -3.1 9.9 SW J1753.5-0127
270.1286 -25.2374 0.0 3.3 -152.3 -0.0396 -0.5 12.7 GX 5-1
270.4362 -25.6402 6.1 3.6 -159.0 0.1717 2.2 9.5 GRS 1758-258
273.9986 -14.0569 192.4 8.5 19.9 0.0047 0.1 1.3 GX 17+2
276.0726 -30.4262 4.9 9.1 158.8 0.1845 2.4 8.4 H1820-303
284.8981 -25.0907 0.0 12.5 109.7 -0.1101 -1.3 12.7 HT1900.1-2455
288.6584 10.9726 6.7 37.2 32.3 -0.2602 -1.7 8.4 GRS 1915+105
262.8858 -33.6846 4.9 13.8 -144.2 0.1876 2.3 10.4 GX 354-0
309.6830 -23.3528 2.2 35.0 103.2 1.0278 5.3 ------ UNKNOWN
250.0702 -34.0265 0.6 22.3 -122.8 1.7401 20.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
67.172600 428.572600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.1816 -60.7563 5.3 56.0 -149.2 -8.0238 -2.2 8.9 Cen X-3
186.4882 -62.6870 9.0 48.2 -151.2 2.1819 1.3 6.8 GX 301-2
244.9896 -15.6256 0.5 18.9 -20.0 16.0448 22.9 1.1 Sco X-1
255.7956 -37.8851 5.8 6.0 127.1 1.3586 2.0 9.4 4U 1700-377
256.6249 -36.2760 0.0 5.8 110.3 2.2756 3.3 12.7 GX 349+2
262.9422 -24.7089 7.5 14.5 48.9 1.0214 1.5 4.3 GX 1+4
264.9266 -44.2890 8.2 15.4 131.7 1.0442 1.4 12.5 4U 1735-44
268.4911 -1.4128 9.5 36.8 27.1 -1.2972 -1.2 7.8 SW J1753.5-0127
270.3922 -25.1934 78.0 19.7 64.1 -0.1294 -0.2 9.0 GX 5-1
270.2987 -25.7071 7.5 19.3 65.3 1.5722 1.8 2.2 GRS 1758-258
274.1591 -14.0670 13.7 29.5 48.7 0.9487 0.8 9.1 GX 17+2
276.0392 -30.2112 4.8 22.2 82.7 2.1322 2.4 11.1 H1820-303
284.8382 -24.8238 0.0 31.4 77.7 1.7881 1.4 12.2 HT1900.1-2455
263.1778 -33.9751 0.0 10.8 88.9 1.0200 1.4 12.6 GX 354-0
303.9486 -66.5918 2.8 45.0 148.3 11.1252 4.2 ------ UNKNOWN
216.0343 -77.8048 2.6 46.2 -175.2 6.5893 4.4 ------ UNKNOWN
195.4167 -37.9789 2.4 43.8 -116.3 13.2498 4.7 ------ UNKNOWN
Plot creation:
Wed Oct 9 18:08:58 EDT 2019