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
142.3380 32.0835 0.0111 19.7070 128.2339 1.7815435 17.276 TRIG_00835200
Foreground time interval of the image:
-16.899 30.248 (delta_t = 47.147 [sec])
Background time interval of the image:
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 64.000000
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 64.000000
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 64.000000
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 -39.372 sec. to 30.248 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.71289 ( -0.11251 0.114494 )
Norm@50keV : 2.68875E-03 ( -0.000182443 0.000180759 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.03 using 59 PHA bins.
# Reduced chi-squared = 0.7900 for 57 degrees of freedom
# Null hypothesis probability = 8.742984e-01
Photon flux (15-150 keV) in 69.62 sec: 0.358734 ( -0.022183 0.022202 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.73171e-06 ( -1.23048e-07 1.24404e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -39.372 sec. to 30.248 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.29883 ( -0.495599 0.440629 )
Epeak [keV] : 77.6052 ( -21.3341 -77.6052 )
Norm@50keV : 4.49068E-03 ( -0.00184179 0.00374889 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 42.47 using 59 PHA bins.
# Reduced chi-squared = 0.7585 for 56 degrees of freedom
# Null hypothesis probability = 9.089224e-01
Photon flux (15-150 keV) in 69.62 sec: 0.351080 ( -0.0236 0.023588 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.65872e-06 ( -1.44661e-07 1.45722e-07 ) ergs/cm2
Band function
Time interval is from -39.372 sec. to 30.248 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] : 11.9825 (-0.918288 1.01563)
R^2/D10^2 : 8.58948E-02 (-0.0222155 0.0293974)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 93.42 using 59 PHA bins.
# Reduced chi-squared = 1.639 for 57 degrees of freedom
# Null hypothesis probability = 1.677259e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.816e-07 2.022e-08
25- 50 5.705e-07 3.902e-08
50-150 4.920e-07 7.049e-08
15-150 1.244e-06 8.389e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 126.052 (-31.316 44.3646)
Norm : 1.49999 (-0.113026 0.141467)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 42.47 using 59 PHA bins.
# Reduced chi-squared = 0.7451 for 57 degrees of freedom
# Null hypothesis probability = 9.241403e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.714e-07 2.618e-08
25- 50 4.896e-07 4.428e-08
50-150 8.948e-07 3.090e-07
15-150 1.656e-06 3.411e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.29052 (-1.20065 1.24437)
R1^2/D10^2 : 0.374859 (-0.149318 0.30276)
kT2 [keV] : 26.1638 (-5.75824 10.664)
R2^2/D10^2 : 3.56464E-03 (-0.00245168 0.00559183)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 39.97 using 59 PHA bins.
# Reduced chi-squared = 0.7267 for 55 degrees of freedom
# Null hypothesis probability = 9.363121e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.608e-07 5.326e-08
25- 50 5.104e-07 1.124e-07
50-150 9.072e-07 4.324e-07
15-150 1.678e-06 4.908e-07
Peak spectrum fit
Power-law model
Time interval is from -19.572 sec. to -18.572 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.25175 ( -0.302843 0.294277 )
Norm@50keV : 8.12887E-03 ( -0.00143247 0.00143195 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.94 using 59 PHA bins.
# Reduced chi-squared = 0.8761 for 57 degrees of freedom
# Null hypothesis probability = 7.348818e-01
Photon flux (15-150 keV) in 1 sec: 0.961707 ( -0.174208 0.174663 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.13242e-08 ( -1.5684e-08 1.58453e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -19.572 sec. to -18.572 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.854801 ( -1.47672 1.18983 )
Epeak [keV] : 149.098 ( -149.167 -149.167 )
Norm@50keV : 1.28105E-02 ( -0.00596966 0.0549788 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.60 using 59 PHA bins.
# Reduced chi-squared = 0.8856 for 56 degrees of freedom
# Null hypothesis probability = 7.143947e-01
Photon flux (15-150 keV) in 1 sec: 0.949796 ( -0.178585 0.178094 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.92228e-08 ( -1.74368e-08 1.69406e-08 ) ergs/cm2
Band function
Time interval is from -19.572 sec. to -18.572 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] : 16.6818 (-3.45584 4.96152)
R^2/D10^2 : 8.04902E-02 (-0.0472156 0.0987587)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.10 using 59 PHA bins.
# Reduced chi-squared = 0.9667 for 57 degrees of freedom
# Null hypothesis probability = 5.467097e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.585e-09 1.780e-09
25- 50 1.998e-08 6.460e-09
50-150 3.945e-08 1.423e-08
15-150 6.401e-08 1.890e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-67.2248 -200)
Norm : 3.99717 (-0.714121 0.714121)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.35 using 59 PHA bins.
# Reduced chi-squared = 0.9184 for 57 degrees of freedom
# Null hypothesis probability = 6.500079e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.957e-09 5.660e-09
25- 50 1.915e-08 1.094e-08
50-150 4.201e-08 2.398e-08
15-150 7.112e-08 4.019e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 11.2055 (-5.40622 4.45832)
R1^2/D10^2 : 0.239544 (-0.157052 1.17619)
kT2 [keV] : 64.0792 (-58.2801 -64.0795)
R2^2/D10^2 : 9.41190E-04 (-0.000773042 0.00985519)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.55 using 59 PHA bins.
# Reduced chi-squared = 0.8827 for 55 degrees of freedom
# Null hypothesis probability = 7.179079e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.652e-09 3.965e-09
25- 50 2.088e-08 1.169e-08
50-150 5.278e-08 2.595e-08
15-150 8.031e-08 3.918e-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: 1.82413 ( -0.160704 0.166445 )
Norm@50keV : 2.17254E-03 ( -0.000224271 0.000220126 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.82 using 59 PHA bins.
# Reduced chi-squared = 0.8039 for 57 degrees of freedom
# Null hypothesis probability = 8.555525e-01
Photon flux (15-150 keV) in 47.15 sec: 0.302217 ( -0.0259805 0.025989 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.4234e-07 ( -9.75236e-08 9.9263e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.56580 ( -0.70793 0.618556 )
Epeak [keV] : 73.3099 ( -65.5426 -73.3106 )
Norm@50keV : 3.03284E-03 ( -0.00105969 0.0044904 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.32 using 59 PHA bins.
# Reduced chi-squared = 0.8093 for 56 degrees of freedom
# Null hypothesis probability = 8.454698e-01
Photon flux (15-150 keV) in 47.15 sec: 0.298555 ( -0.027389 0.02676 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.15365e-07 ( -1.16135e-07 1.16503e-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) = 4.71e-07
S(50-100 keV) = 5.75e-07
T90 vs. Hardness ratio plot
T90 = 53.203999876976 sec.
Hardness ratio (energy fluence ratio) = 1.22081
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.31544
Count Ratio (50-100 keV) / (15-25 keV) = 0.747344
Mask shadow pattern
IMX = -2.216738482059665E-01, IMY = -2.813543010671655E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
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:
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-16.899400 30.248000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.6337 22.0170 1.6 40.2 -110.9 2.2950 7.1 0.2 Crab
142.3380 32.0835 0.7 19.7 128.2 1.7816 17.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
113.500600 963.180000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
181.7411 12.8400 4.2 40.9 98.2 8.1291 2.7 ------ UNKNOWN
191.1488 35.6529 2.9 40.3 60.4 8.1755 4.1 ------ UNKNOWN
146.8506 -19.1950 3.0 51.5 163.8 11.2313 3.9 ------ UNKNOWN
109.6449 81.4456 3.4 50.8 -16.6 4.8257 3.4 ------ UNKNOWN
Plot creation:
Fri Jul 6 14:42:56 EDT 2018