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
174.3663 -45.8450 0.0202 8.4423 104.5470 0.9141494 9.488 TRIG_00735326
Foreground time interval of the image:
-8.496 57.093 (delta_t = 65.589 [sec])
Background time interval of the image:
-183.107 -8.496 (delta_t = 174.611 [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 12.160000
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 12.160000
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 12.160000
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 -8.496 sec. to 65.268 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.15458 ( -0.307627 0.295181 )
Norm@50keV : 7.01309E-04 ( -0.000120489 0.000120444 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.00 using 59 PHA bins.
# Reduced chi-squared = 1.228 for 57 degrees of freedom
# Null hypothesis probability = 1.156423e-01
Photon flux (15-150 keV) in 73.76 sec: 8.18319E-02 ( -0.0144065 0.0144555 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.3184e-07 ( -1.00837e-07 1.02367e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -8.496 sec. to 65.268 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.576837 ( -1.5775 1.00167 )
Epeak [keV] : 127.581 ( -127.583 -127.583 )
Norm@50keV : 1.34511E-03 ( -0.000743642 0.00622305 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.33 using 59 PHA bins.
# Reduced chi-squared = 1.238 for 56 degrees of freedom
# Null hypothesis probability = 1.087315e-01
Photon flux (15-150 keV) in 73.76 sec: 7.97569E-02 ( -0.0151666 0.0150834 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.06851e-07 ( -6.60115e-08 1.14262e-07 ) ergs/cm2
Band function
Time interval is from -8.496 sec. to 65.268 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] : 17.9074 (-3.65707 5.10457)
R^2/D10^2 : 5.44393E-03 (-0.00307001 0.00631056)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 73.45 using 59 PHA bins.
# Reduced chi-squared = 1.289 for 57 degrees of freedom
# Null hypothesis probability = 7.015340e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.582e-08 8.464e-09
25- 50 1.190e-07 3.380e-08
50-150 2.765e-07 9.379e-08
15-150 4.213e-07 1.200e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-59.8901 -200)
Norm : 0.337537 (-0.0593236 0.0593236)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 74.12 using 59 PHA bins.
# Reduced chi-squared = 1.300 for 57 degrees of freedom
# Null hypothesis probability = 6.335223e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.202e-08 3.553e-08
25- 50 1.193e-07 6.871e-08
50-150 2.617e-07 1.511e-07
15-150 4.430e-07 2.528e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 9.76306 (-6.5818 5.49533)
R1^2/D10^2 : 2.36510E-02 (-0.0138589 0.158119)
kT2 [keV] : 32.9500 (-26.6841 -46.0822)
R2^2/D10^2 : 5.18694E-04 (-0.000185665 0.00359388)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.90 using 59 PHA bins.
# Reduced chi-squared = 1.253 for 55 degrees of freedom
# Null hypothesis probability = 9.856103e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.970e-08 2.538e-08
25- 50 1.198e-07 6.992e-08
50-150 3.272e-07 1.921e-07
15-150 4.867e-07 2.534e-07
Peak spectrum fit
Power-law model
Time interval is from 7.308 sec. to 8.308 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.09021 ( -1.35956 1.06229 )
Norm@50keV : 3.03462E-03 ( -0.00151033 0.00106994 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.24 using 59 PHA bins.
# Reduced chi-squared = 0.8463 for 57 degrees of freedom
# Null hypothesis probability = 7.891492e-01
Photon flux (15-150 keV) in 1 sec: 0.351074 ( -0.351074 0.132859 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.19271e-08 ( -1.42044e-08 1.36818e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 7.308 sec. to 8.308 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.15627 ( -1.80853 2.47841 )
Epeak [keV] : 56.4306 ( )
Norm@50keV : 1.01047E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.62 using 59 PHA bins.
# Reduced chi-squared = 0.8324 for 56 degrees of freedom
# Null hypothesis probability = 8.099817e-01
Photon flux (15-150 keV) in 1 sec: 0.179390 ( -0.17939 0.095286 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.17114e-08 ( 0 0 ) ergs/cm2
Band function
Time interval is from 7.308 sec. to 8.308 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] : 62.4802 (-39.9335 -62.3037)
R^2/D10^2 : 7.81838E-04 (-0.000788474 0.00806837)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.81 using 59 PHA bins.
# Reduced chi-squared = 0.9090 for 57 degrees of freedom
# Null hypothesis probability = 6.694664e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.527e-09 3.642e-09
25- 50 2.893e-09 2.029e-09
50-150 7.573e-11 9.475e-11
15-150 8.495e-09 5.550e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.361 (-199.363 -199.363)
Norm : 1.43874 (-0.525256 0.525251)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.01 using 59 PHA bins.
# Reduced chi-squared = 0.8774 for 57 degrees of freedom
# Null hypothesis probability = 7.324582e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.583e-09 2.355e-09
25- 50 6.892e-09 4.513e-09
50-150 1.512e-08 9.575e-09
15-150 2.559e-08 1.611e-08
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.91434 (-1.55857 1.56274)
R1^2/D10^2 : 6.43950 (-6.35899 126.167)
kT2 [keV] : 199.724 (-199.724 -199.724)
R2^2/D10^2 : 1.11412E-04 (-4.5583e-05 0.00147252)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 40.84 using 59 PHA bins.
#Fit statistic : Chi-Squared = 40.81 using 59 PHA bins.
# Reduced chi-squared = 0.7426 for 55 degrees of freedom
# Reduced chi-squared = 0.7420 for 55 degrees of freedom
# Null hypothesis probability = 9.224918e-01
# Null hypothesis probability = 9.229804e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.354e-09 3.504e-09
25- 50 3.179e-09 1.711e-09
50-150 3.002e-08 2.526e-08
15-150 3.855e-08 3.439e-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: 1.21081 ( -0.32374 0.312988 )
Norm@50keV : 7.18914E-04 ( -0.000128007 0.000127908 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 64.74 using 59 PHA bins.
# Reduced chi-squared = 1.136 for 57 degrees of freedom
# Null hypothesis probability = 2.247648e-01
Photon flux (15-150 keV) in 65.59 sec: 8.45165E-02 ( -0.0153677 0.0154101 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.76943e-07 ( -9.48425e-08 9.65695e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.945483 ( -1.51045 1.8748 )
Epeak [keV] : 204.602 ( -204.605 -204.605 )
Norm@50keV : 9.72642E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 64.60 using 59 PHA bins.
# Reduced chi-squared = 1.154 for 56 degrees of freedom
# Null hypothesis probability = 2.014694e-01
Photon flux (15-150 keV) in 65.59 sec: 8.35183E-02 ( -0.0161043 0.0159759 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.66578e-07 ( -1.0845e-07 1.04428e-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) = 1.08e-07
S(50-100 keV) = 1.95e-07
T90 vs. Hardness ratio plot
T90 = 67.3759999871254 sec.
Hardness ratio (energy fluence ratio) = 1.80556
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.88328
Count Ratio (50-100 keV) / (15-25 keV) = 1.41307
Mask shadow pattern
IMX = -3.727964980780391E-02, IMY = -1.436632796535023E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 12.160000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 12.160000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 12.160000
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:
-183.107410 -8.496000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.4858 -40.4180 5.2 32.6 49.3 0.5815 2.2 8.4 Vela X-1
170.3239 -60.6009 1.8 9.1 -12.6 1.0609 6.4 1.3 Cen X-3
186.6406 -62.8058 1.1 10.0 -62.1 1.7243 10.8 2.2 GX 301-2
162.1048 -40.9385 3.2 17.5 82.3 0.6596 3.6 ------ UNKNOWN
176.8614 -62.0346 2.3 8.9 -34.7 0.8180 5.0 ------ UNKNOWN
221.0182 -5.4242 2.2 58.2 -175.8 5.7223 5.3 ------ UNKNOWN
214.4004 -66.6161 2.7 21.1 -83.5 0.8660 4.3 ------ UNKNOWN
57.4035 -60.1383 2.5 57.7 -15.9 3.9008 4.6 ------ UNKNOWN
3.5234 -75.8790 3.7 50.8 -44.5 2.7895 3.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-8.496000 57.092590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5039 -40.6781 5.0 32.5 48.9 0.3685 2.3 7.5 Vela X-1
170.3605 -60.4241 5.6 8.9 -11.9 -0.1934 -2.0 12.0 Cen X-3
186.6046 -62.7381 3.2 10.0 -62.2 -0.3503 -3.6 2.4 GX 301-2
90.7065 -49.4256 2.6 52.3 9.8 1.4814 4.5 ------ UNKNOWN
185.0504 -33.6621 2.7 19.9 145.9 0.4353 4.2 ------ UNKNOWN
174.3663 -45.8450 1.2 8.4 104.5 0.9143 9.5 ------ UNKNOWN
239.0731 -25.0636 2.2 51.6 -144.7 2.0915 5.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
85.092590 962.916800
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5018 -40.5818 1.7 28.5 39.8 4.6523 6.9 2.0 Vela X-1
170.2895 -60.5938 1.4 14.9 -39.1 4.2727 8.0 1.9 Cen X-3
186.7165 -62.7933 0.9 18.3 -65.0 7.3726 12.4 2.1 GX 301-2
178.1457 -16.1991 2.7 29.8 140.5 3.1066 4.3 ------ UNKNOWN
132.7411 -41.9793 2.4 29.9 35.5 3.0986 4.7 ------ UNKNOWN
211.2886 0.8082 3.6 56.9 179.0 11.6386 3.2 ------ UNKNOWN
213.8398 -2.0669 3.4 55.7 -176.5 8.6911 3.4 ------ UNKNOWN
208.5703 -24.6124 2.7 34.7 -162.8 2.6067 4.3 ------ UNKNOWN
176.7581 -61.9654 2.3 16.2 -50.9 2.7345 5.1 ------ UNKNOWN
201.4760 -43.0197 2.3 19.5 -135.4 2.5070 5.0 ------ UNKNOWN
219.1476 -3.1551 2.8 57.8 -170.6 13.8812 4.1 ------ UNKNOWN
Plot creation:
Fri Feb 10 17:30:50 EST 2017