Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
210.5128 +12.0022 0.0386 12.7 -85.6 0.5309 5.0 TRIG_00834937
------------------------------------------
Foreground time interval of the image:
-2.840 67.048 (delta_t = 69.888 [sec])
Background time interval of the image:
-239.000 -2.840 (delta_t = 236.160 [sec])
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) 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.
- 5) 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.
- 6) 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)
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of 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.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Time interval is from -2.840 sec. to 67.048 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.22265 ( -0.471745 0.56941 )
Norm@50keV : 3.78246E-04 ( -0.000152931 0.000152707 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.81 using 59 PHA bins.
# Reduced chi-squared = 1.172 for 57 degrees of freedom
# Null hypothesis probability = 1.754954e-01
Photon flux (15-150 keV) in 69.89 sec: 6.33687E-02 ( -0.0175126 0.0175587 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.49197e-07 ( -8.41196e-08 9.20556e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -2.840 sec. to 67.048 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -1.26678 ( -5.04602 2.73941 )
Epeak [keV] : 34.5969 ( -12.8271 9.34776 )
Norm@50keV : 5.42444E-02 ( -0.062222 45.0268 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.86 using 59 PHA bins.
# Reduced chi-squared = 1.105 for 56 degrees of freedom
# Null hypothesis probability = 2.748513e-01
Photon flux (15-150 keV) in 69.89 sec: 6.08130E-02 ( -0.0168915 0.0169454 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.14635e-07 ( -6.09979e-08 6.99557e-08 ) ergs/cm2
Band function
Time interval is from -2.840 sec. to 67.048 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 1.22915 ( -2.70656 -1.27016 )
beta : -9.37167 ( 9.37167 19.3678 )
Epeak [keV] : 34.6171 ( -7.67094 9.32644 )
Norm@50keV : 5.13016E-02 ( -0.0619146 8.07792 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.87 using 59 PHA bins.
# Reduced chi-squared = 1.125 for 55 degrees of freedom
# Null hypothesis probability = 2.443298e-01
Photon flux (15-150 keV) in 69.89 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 2.15079e-07 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 8.98855 (-1.88047 2.23872)
R^2/D10^2 : 4.96204E-02 (-0.0293161 0.0730157)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.71 using 59 PHA bins.
# Reduced chi-squared = 1.083 for 57 degrees of freedom
# Null hypothesis probability = 3.115139e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.452e-08 3.137e-08
25- 50 1.156e-07 6.145e-08
50-150 4.394e-08 3.232e-08
15-150 2.141e-07 9.870e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 40.8655 (-18.0434 45.1335)
Norm : 0.418765 (-0.154631 0.252744)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 64.35 using 59 PHA bins.
# Reduced chi-squared = 1.129 for 57 degrees of freedom
# Null hypothesis probability = 2.348058e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.769e-08 3.052e-08
25- 50 8.987e-08 5.103e-08
50-150 7.116e-08 5.444e-08
15-150 2.287e-07 1.251e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.60830 (-2.58918 -2.58918)
R1^2/D10^2 : 2.07578 (-2.25718 -2.25718)
kT2 [keV] : 9.45458 (-2.18929 -9.42258)
R2^2/D10^2 : 3.85476E-02 (-0.0390511 0.0757124)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.35 using 59 PHA bins.
# Reduced chi-squared = 1.115 for 55 degrees of freedom
# Null hypothesis probability = 2.589007e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.877e-08 3.064e-08
25- 50 1.109e-07 6.559e-08
50-150 4.869e-08 3.320e-08
15-150 2.184e-07 1.321e-07
Peak spectrum fit
Power-law model
Time interval is from 10.004 sec. to 11.004 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.03035 ( -0.776503 0.885191 )
Norm@50keV : 2.40256E-03 ( -0.00130933 0.00126861 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.98 using 59 PHA bins.
# Reduced chi-squared = 0.9821 for 57 degrees of freedom
# Null hypothesis probability = 5.132982e-01
Photon flux (15-150 keV) in 1 sec: 0.365507 ( -0.146215 0.146228 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.21959e-08 ( -1.05209e-08 1.19581e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 10.004 sec. to 11.004 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -9.94113 ( )
Epeak [keV] : 25.1741 ( )
Norm@50keV : 2.55067E+06 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.04 using 59 PHA bins.
# Reduced chi-squared = 0.9472 for 56 degrees of freedom
# Null hypothesis probability = 5.875022e-01
Photon flux (15-150 keV) in 1 sec: 0.365086 0.325197 0.324493 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 2.72851e-16 ( 0 0 ) ergs/cm2
Band function
Time interval is from 10.004 sec. to 11.004 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 5.00000 ( -7.42012 -5 )
beta : -3.30561 ( 3.31199 1.58564 )
Epeak [keV] : 25.3811 ( -10.0969 7.00569 )
Norm@50keV : 475.734 ( -176.318 9977.44 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.19 using 59 PHA bins.
# Reduced chi-squared = 0.9672 for 55 degrees of freedom
# Null hypothesis probability = 5.439509e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 3.21665e-09 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 6.65464 (-1.92284 3.33503)
R^2/D10^2 : 0.878133 (-0.878125 2.81834)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.13 using 59 PHA bins.
# Reduced chi-squared = 0.9672 for 57 degrees of freedom
# Null hypothesis probability = 5.454351e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.909e-09 3.913e-09
25- 50 7.322e-09 4.735e-09
50-150 1.007e-09 9.750e-10
15-150 1.424e-08 9.320e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 44.1566 (-44.1788 -44.1788)
Norm : 2.21435 (-1.22639 3.40771)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.03 using 59 PHA bins.
# Reduced chi-squared = 0.9829 for 57 degrees of freedom
# Null hypothesis probability = 5.115823e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.244e-09 3.461e-09
25- 50 7.187e-09 4.956e-09
50-150 6.175e-09 5.170e-09
15-150 1.861e-08 1.351e-08
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.13322 (-1.69885 2.24723)
R1^2/D10^2 : 1.16155 (-0.798009 3.32597)
kT2 [keV] : 200.000 (-200 -200)
R2^2/D10^2 : 5.20905E-05 (-4.9072e-05 0.000419021)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.11 using 59 PHA bins.
#Fit statistic : Chi-Squared = 52.09 using 59 PHA bins.
# Reduced chi-squared = 0.9474 for 55 degrees of freedom
# Reduced chi-squared = 0.9470 for 55 degrees of freedom
# Null hypothesis probability = 5.858955e-01
# Null hypothesis probability = 5.866729e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.887e-09 3.692e-09
25- 50 7.067e-09 4.598e-09
50-150 1.378e-08 1.109e-09
15-150 2.673e-08 9.405e-09
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: 2.22265 ( -0.471745 0.56941 )
Norm@50keV : 3.78246E-04 ( -0.000152931 0.000152707 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.81 using 59 PHA bins.
# Reduced chi-squared = 1.172 for 57 degrees of freedom
# Null hypothesis probability = 1.754954e-01
Photon flux (15-150 keV) in 69.89 sec: 6.33687E-02 ( -0.0175126 0.0175587 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.49197e-07 ( -8.41196e-08 9.20556e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -1.26678 ( -5.04602 2.73941 )
Epeak [keV] : 34.5969 ( -12.8271 9.34776 )
Norm@50keV : 5.42444E-02 ( -0.062222 45.0268 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.86 using 59 PHA bins.
# Reduced chi-squared = 1.105 for 56 degrees of freedom
# Null hypothesis probability = 2.748513e-01
Photon flux (15-150 keV) in 69.89 sec: 6.08130E-02 ( -0.0168915 0.0169454 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.14635e-07 ( -6.09979e-08 6.99557e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 1.22915 ( -2.70656 -1.27016 )
beta : -9.37167 ( 9.37167 19.3678 )
Epeak [keV] : 34.6171 ( -7.67094 9.32644 )
Norm@50keV : 5.13016E-02 ( -0.0619146 8.07792 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.87 using 59 PHA bins.
# Reduced chi-squared = 1.125 for 55 degrees of freedom
# Null hypothesis probability = 2.443298e-01
Photon flux (15-150 keV) in 69.89 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 2.15079e-07 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 7.93e-08
S(50-100 keV) = 6.79e-08
T90 vs. Hardness ratio plot
T90 = 62.2079998254776 sec.
Hardness ratio (energy fluence ratio) = 0.856242
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.1097
Count Ratio (50-100 keV) / (15-25 keV) = -0.0029624
Mask shadow pattern
IMX = 1.740158200827907E-02, IMY = 2.237900685679950E-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:
-239.000000 -2.840000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9825 -15.6501 0.4 32.2 68.9 12.9920 26.9 0.6 Sco X-1
254.3651 35.2113 4.3 48.4 -12.6 1.3183 2.7 9.1 Her X-1
250.5793 9.1160 2.2 34.1 21.6 1.7671 5.2 ------ UNKNOWN
238.3424 13.1909 2.8 24.0 5.4 1.0797 4.1 ------ UNKNOWN
263.8160 28.7712 2.0 52.2 -0.2 3.6663 5.6 ------ UNKNOWN
257.1679 45.6246 2.9 56.5 -21.3 4.3230 4.0 ------ UNKNOWN
161.7540 -10.3096 5.0 56.4 -157.2 3.5023 2.3 ------ UNKNOWN
181.3013 23.9030 3.1 41.5 -108.0 3.9749 3.7 ------ UNKNOWN
207.4016 43.9459 2.4 43.6 -64.2 6.1783 4.9 ------ UNKNOWN
170.0356 11.7894 2.3 48.0 -129.1 6.6673 5.0 ------ UNKNOWN
217.3741 48.1179 3.4 46.9 -53.8 4.3732 3.5 ------ UNKNOWN
173.3374 16.0059 2.4 45.7 -122.6 6.4708 4.7 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-2.840000 67.048000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9768 -15.6410 5.3 32.2 68.9 -0.4583 -2.2 0.2 Sco X-1
254.6859 35.2936 3.2 48.6 -12.5 -0.7865 -3.7 11.6 Her X-1
189.3065 -27.5829 2.9 39.4 167.0 0.7004 3.9 ------ UNKNOWN
180.9530 -28.5601 2.1 45.8 172.6 1.4354 5.6 ------ UNKNOWN
194.8542 3.8521 2.7 22.5 -136.9 0.5090 4.2 ------ UNKNOWN
215.4386 37.2873 1.9 36.1 -56.4 1.1186 6.0 ------ UNKNOWN
210.6878 44.8490 2.1 44.0 -60.6 2.4962 5.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
109.800590 719.958000
721.000000 963.124500
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3275 35.2207 6.2 45.9 9.7 2.0539 1.9 9.7 Her X-1
227.7941 -5.9610 2.9 24.8 93.0 3.0698 4.0 ------ UNKNOWN
266.4801 37.0922 3.0 55.8 10.8 12.8268 3.8 ------ UNKNOWN
263.9584 47.5188 5.1 56.9 -1.9 6.1604 2.3 ------ UNKNOWN
161.5857 10.3118 2.4 48.0 -129.1 14.1368 4.8 ------ UNKNOWN
Plot creation:
Fri Jun 1 04:09:52 EDT 2018