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
196.6641 83.7847 0.0063 34.2608 21.8808 5.5991735 30.450 TRIG_01002103
Foreground time interval of the image:
-54.000 13.637 (delta_t = 67.637 [sec])
Background time interval of the image:
-239.064 -54.000 (delta_t = 185.064 [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 1.024000
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 1.024000
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 1.024000
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
-54.000000 235.376500
236.936000 250.104000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.89968 ( -0.0742968 0.0752047 )
Norm@50keV : 2.28399E-03 ( -9.82358e-05 9.76494e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 67.85 using 59 bins.
Reduced chi-squared = 1.19035
# Null hypothesis probability of 1.54e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 302.5 sec: 0.327753 ( -0.013218 0.013246 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.35295e-06 ( -2.69848e-07 2.71276e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-54.000000 235.376500
236.936000 250.104000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.38891 ( -0.342353 0.314871 )
Epeak [keV] : 54.5230 ( -7.88473 18.2664 )
Norm@50keV : 4.27759E-03 ( -0.00134688 0.00220658 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 59.81 using 59 bins.
Reduced chi-squared = 1.06804
# Null hypothesis probability of 3.39e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 302.5 sec: 0.317070 ( -0.014627 0.014646 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.03013e-06 ( -3.28412e-07 3.29994e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-54.000000 235.376500
236.936000 250.104000
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] : 11.4703 ( )
R^2/D10^2 : 8.77840E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 170.60 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.91e-13 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.352e-07 5.037e-08
25- 50 2.191e-06 9.181e-08
50-150 1.680e-06 1.525e-07
15-150 4.607e-06 1.966e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 84.3009 (-10.9443 13.7283)
Norm : 1.49017 (-0.0933179 0.101701)
------------------------------------------------------------
#Fit statistic : Chi-Squared 59.80 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.74e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.173e-06 7.260e-08
25- 50 1.955e-06 8.107e-08
50-150 2.857e-06 2.676e-07
15-150 5.985e-06 2.843e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.92406 (-1.03603 1.03884)
R1^2/D10^2 : 0.415852 (-0.149371 0.299722)
kT2 [keV] : 22.5447 (-4.05317 6.60042)
R2^2/D10^2 : 4.68639E-03 (-0.00289145 0.00588107)
------------------------------------------------------------
#Fit statistic : Chi-Squared 63.17 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.10e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.090e-06 1.457e-07
25- 50 1.991e-06 2.235e-07
50-150 2.890e-06 6.558e-07
15-150 5.971e-06 1.006e-06
Peak spectrum fit
Power-law model
Time interval is from 1.052 sec. to 2.052 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.43888 ( -0.215909 0.217797 )
Norm@50keV : 1.78182E-02 ( -0.00231504 0.00230814 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.34 using 59 bins.
Reduced chi-squared = 1.07614
# Null hypothesis probability of 3.23e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 2.18990 ( -0.28947 0.29008 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.7088e-07 ( -2.40956e-08 2.42617e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 1.052 sec. to 2.052 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.946730 ( -1.0244 0.657812 )
Epeak [keV] : 113.315 ( -46.0375 -113.315 )
Norm@50keV : 3.08946E-02 ( -0.0148833 0.0623197 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.38 using 59 bins.
Reduced chi-squared = 1.07821
# Null hypothesis probability of 3.20e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 2.15085 ( -0.29909 0.29797 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.66948e-07 ( -2.53393e-08 2.5308e-08 ) ergs/cm2
Band function
Time interval is from 1.052 sec. to 2.052 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
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 16.5763 (-2.4042 2.89315)
R^2/D10^2 : 0.182772 (-0.0788706 0.132869)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 71.30 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.64e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.030e-08 2.366e-09
25- 50 4.464e-08 9.925e-09
50-150 8.683e-08 1.799e-08
15-150 1.418e-07 2.540e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-64.5705 -200)
Norm : 9.07315 (-1.16416 1.16416)
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.54 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.17e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.260e-08 1.264e-08
25- 50 4.347e-08 2.417e-08
50-150 9.533e-08 5.195e-08
15-150 1.614e-07 8.930e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.55698 (-2.62327 6.79871)
R1^2/D10^2 : 8.89575 (-7.80319 958.12)
kT2 [keV] : 20.8098 (-4.46262 23.7262)
R2^2/D10^2 : 7.45440E-02 (-0.0672681 0.106587)
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.02 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.69e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.082e-08 1.091e-08
25- 50 3.887e-08 1.358e-08
50-150 1.011e-07 4.151e-08
15-150 1.608e-07 6.220e-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: 1.77567 ( -0.0857753 0.0868161 )
Norm@50keV : 5.32652E-03 ( -0.000273763 0.000272252 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 56.25 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.03e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 67.64 sec: 0.727176 ( -0.035722 0.0357768 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.3201e-06 ( -1.75083e-07 1.76031e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.12688 ( -0.423058 0.381467 )
Epeak [keV] : 62.2405 ( -9.48657 25.2305 )
Norm@50keV : 1.17963E-02 ( -0.00433538 0.00792687 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 47.29 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.90e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 67.64 sec: 0.702736 ( -0.038274 0.038299 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.12972e-06 ( -2.05835e-07 2.06965e-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) = 1.85e-06
S(50-100 keV) = 1.99e-06
T90 vs. Hardness ratio plot
T90 = 271.783999919891 sec.
Hardness ratio (energy fluence ratio) = 1.07568
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.20041
Count Ratio (50-100 keV) / (15-25 keV) = 0.641178
Mask shadow pattern
IMX = 6.320832793948350E-01, IMY = -2.538499748894549E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
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:
-239.064000 -54.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4218 35.2517 4.0 19.4 -126.5 0.6645 2.9 5.7 Her X-1
268.2360 -1.4273 4.9 55.3 -154.4 -2.2842 -2.3 8.1 SW J1753.5-0127
288.9372 10.8325 0.0 47.6 176.4 1.3529 2.5 10.6 GRS 1915+105
299.6853 35.1878 4.0 31.5 142.9 1.0040 2.9 4.7 Cyg X-1
307.8993 40.8095 0.0 32.4 126.8 0.6885 1.6 12.9 Cyg X-3
316.5334 28.6968 2.1 45.9 132.9 5.9338 5.5 ------ UNKNOWN
248.0970 38.5029 2.8 18.3 -108.0 0.9426 4.1 ------ UNKNOWN
160.6231 51.8950 3.4 56.3 -14.4 2.5493 3.4 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-54.000000 13.636600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4659 35.3871 320.0 19.2 -126.4 -0.0048 -0.0 2.7 Her X-1
268.2336 -1.4201 3.3 55.2 -154.4 1.7584 3.5 8.3 SW J1753.5-0127
288.6817 10.9774 9.2 47.3 176.7 0.3462 1.3 7.1 GRS 1915+105
299.7482 35.3558 5.2 31.4 142.6 -0.4246 -2.2 12.1 Cyg X-1
308.0204 40.8139 127.4 32.5 126.7 0.0210 0.1 9.3 Cyg X-3
278.9207 74.8034 2.4 22.1 43.1 0.6513 4.7 ------ UNKNOWN
196.6641 83.7847 0.4 34.3 21.9 5.5982 30.4 ------ UNKNOWN
152.5619 64.1538 2.2 50.6 0.1 1.7364 5.2 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
67.836600 235.376500
236.936000 903.936590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4268 35.3287 5.3 51.5 -136.9 7.6595 2.2 1.7 Her X-1
299.6878 35.2449 162.2 56.4 177.8 0.2713 0.1 5.4 Cyg X-1
308.2474 40.9846 3.3 51.6 168.6 9.7937 3.5 6.5 Cyg X-3
86.0986 45.7313 2.7 46.8 41.2 11.9375 4.3 ------ UNKNOWN
15.5310 61.1888 3.4 35.1 105.9 5.4365 3.4 ------ UNKNOWN
196.5827 83.8095 1.5 0.1 102.8 5.3079 7.7 ------ UNKNOWN
134.3720 35.7257 2.6 51.6 -8.5 7.1326 4.5 ------ UNKNOWN
155.0007 60.7569 3.5 24.9 -24.5 2.4165 3.3 ------ UNKNOWN
139.4381 30.5444 3.8 56.2 -14.4 7.6963 3.1 ------ UNKNOWN
217.6987 42.9633 3.9 41.2 -98.5 9.2941 3.0 ------ UNKNOWN
Plot creation:
Sat Jul 30 07:28:16 EDT 2022