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
103.0847 72.1869 0.0194 25.4132 -136.2464 0.2297943 9.902 TRIG_01115156
Foreground time interval of the image:
-1.296 2.704 (delta_t = 4.000 [sec])
Background time interval of the image:
-239.296 -1.296 (delta_t = 238.000 [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
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
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 2.048000
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 2.048000
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 -1.296 sec. to 2.704 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.22601 ( -0.298668 0.338638 )
Norm@50keV : 3.14958E-03 ( -0.000756148 0.000735086 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 64.53 using 59 bins.
Reduced chi-squared = 1.13211
# Null hypothesis probability of 2.30e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 4 sec: 0.528714 ( -0.084406 0.08442 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.18927e-07 ( -2.37305e-08 2.47379e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -1.296 sec. to 2.704 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.740987 ( -2.29997 1.35196 )
Epeak [keV] : 32.1304 ( -22.2313 11.5636 )
Norm@50keV : 2.55415E-02 ( -0.026402 0.682803 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.89 using 59 bins.
Reduced chi-squared = 1.10518
# Null hypothesis probability of 2.74e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 4 sec: 0.510523 ( -0.085232 0.08582 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.05755e-07 ( -2.19208e-08 2.66641e-08 ) ergs/cm2
Band function
Time interval is from -1.296 sec. to 2.704 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] : 8.80358 (-1.34752 1.55256)
R^2/D10^2 : 0.415112 (-0.196294 0.37803)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 64.55 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.30e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.476e-08 7.298e-09
25- 50 5.082e-08 1.177e-08
50-150 1.811e-08 8.210e-09
15-150 9.370e-08 2.298e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 44.5563 (-14.6689 26.4689)
Norm : 3.23991 (-0.792873 1.1318)
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.24 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.95e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.077e-08 6.486e-09
25- 50 4.232e-08 8.958e-09
50-150 3.670e-08 1.771e-08
15-150 1.098e-07 3.032e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.15180 (-1.97295 3.41231)
R1^2/D10^2 : 128.234 (-226.507 -227.901)
kT2 [keV] : 9.97791 (-1.73886 2.74877)
R2^2/D10^2 : 0.232220 (-0.111753 0.276475)
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.03 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.98e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.762e-08 1.383e-08
25- 50 4.698e-08 2.534e-08
50-150 2.419e-08 1.386e-08
15-150 9.879e-08 4.783e-08
Peak spectrum fit
Power-law model
Time interval is from 1.704 sec. to 2.704 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.91564 ( -0.454814 0.511279 )
Norm@50keV : 4.83648E-03 ( -0.00156183 0.00145902 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.83 using 59 bins.
Reduced chi-squared = 1.10228
# Null hypothesis probability of 2.77e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.698784 ( -0.169076 0.169081 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.44805e-08 ( -1.32442e-08 1.38855e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 1.704 sec. to 2.704 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.92526 ( -3.02827 2.40673 )
Epeak [keV] : 9995.04 ( -1.77464 -9999.3 )
Norm@50keV : 4.80689E-03 ( -0.00153843 0.620708 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.83 using 59 bins.
Reduced chi-squared = 1.12196
# Null hypothesis probability of 2.47e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.547305 ( -0.238201 0.370426 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.98281e-08 ( -1.72025e-08 1.36468e-08 ) ergs/cm2
Band function
Time interval is from 1.704 sec. to 2.704 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] : 8.49569 (-1.89851 2.51158)
R^2/D10^2 : 0.615657 (-0.393882 1.02378)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 65.66 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.02e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.372e-09 4.573e-09
25- 50 1.622e-08 8.460e-09
50-150 5.171e-09 3.478e-09
15-150 2.976e-08 1.795e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 71.5120 (-40.7496 -71.5881)
Norm : 3.39587 (-1.11802 2.06658)
------------------------------------------------------------
#Fit statistic : Chi-Squared 63.75 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.51e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.732e-09 3.624e-09
25- 50 1.397e-08 6.790e-09
50-150 1.823e-08 1.389e-08
15-150 4.093e-08 2.339e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 200.000 (-169.283 -200)
R1^2/D10^2 : 8.98412E-05 (-5.14928e-05 0.000491219)
kT2 [keV] : 7.46843 (-0.992824 2.07512)
R2^2/D10^2 : 0.932314 (-0.586455 0.595453)
------------------------------------------------------------
#Fit statistic : Chi-Squared 58.14 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.60e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.768e-09 4.746e-09
25- 50 1.568e-08 9.225e-09
50-150 6.132e-09 4.166e-09
15-150 3.058e-08 1.806e-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: 2.22601 ( -0.298668 0.338638 )
Norm@50keV : 3.14958E-03 ( -0.000756148 0.000735086 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 64.53 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.30e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 4 sec: 0.528660 ( -0.0843984 0.0844128 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.18903e-07 ( -2.3695e-08 2.47587e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.715902 ( -2.28892 1.24252 )
Epeak [keV] : 32.2248 ( -26.2097 11.5038 )
Norm@50keV : 2.64705E-02 ( -0.0264736 0.681867 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.89 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.74e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 4 sec: 0.510417 ( -0.085185 0.08578 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.05776e-07 ( -2.19244e-08 2.6676e-08 ) 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) = 3.79e-08
S(50-100 keV) = 3.24e-08
T90 vs. Hardness ratio plot
T90 = 4 sec.
Hardness ratio (energy fluence ratio) = 0.854881
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.16558
Count Ratio (50-100 keV) / (15-25 keV) = 0.374209
Mask shadow pattern
IMX = -3.431872264327344E-01, IMY = 3.285711767069660E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
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:
-239.296000 -1.296000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
37.7085 30.7404 3.2 35.3 -11.7 1.3634 3.6 ------ UNKNOWN
75.4420 30.9378 2.6 44.5 -61.1 6.0523 4.4 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-1.296000 2.704000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
202.4701 59.4937 2.0 54.7 -175.1 0.3887 5.7 ------ UNKNOWN
103.0848 72.1869 1.2 25.4 -136.2 0.2299 9.9 ------ UNKNOWN
81.0614 52.6992 2.2 28.4 -87.5 0.1657 5.2 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
280.004590 713.474000
720.704000 775.732300
780.704000 962.711100
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.3236 -40.5462 24.5 40.8 -39.9 0.6329 0.5 9.4 Vela X-1
170.2779 -60.6076 2.7 38.2 6.8 5.4849 4.3 1.4 Cen X-3
186.8781 -62.8609 6.2 41.3 18.6 -2.3491 -1.9 8.2 GX 301-2
33.7895 -20.9584 3.4 53.0 -174.2 8.5300 3.4 ------ UNKNOWN
151.1399 -55.3018 3.9 35.4 -11.7 3.2034 2.9 ------ UNKNOWN
138.5173 -43.3636 3.1 39.8 -34.5 4.6412 3.8 ------ UNKNOWN
72.7455 -34.3967 3.3 31.8 -127.7 4.1261 3.5 ------ UNKNOWN
121.7852 -30.6527 2.3 44.5 -61.1 19.0446 5.0 ------ UNKNOWN
70.7537 -18.3006 2.6 48.0 -129.0 17.0745 4.3 ------ UNKNOWN
Plot creation:
Mon Oct 24 12:41:46 EDT 2022