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
283.2694 47.6447 0.0097 43.2144 -29.9595 0.5779534 19.854 TRIG_00932608
Foreground time interval of the image:
-0.032 0.308 (delta_t = 0.340 [sec])
Background time interval of the image:
-432.075 -415.789 (delta_t = 16.286 [sec])
-239.976 -0.032 (delta_t = 239.944 [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 0.064000
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 0.064000
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 0.064000
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 -0.032 sec. to 0.308 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.811237 ( -0.155697 0.151354 )
Norm@50keV : 0.102950 ( -0.0090348 0.00898819 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.50 using 59 PHA bins.
# Reduced chi-squared = 1.044 for 57 degrees of freedom
# Null hypothesis probability = 3.846414e-01
Photon flux (15-150 keV) in 0.34 sec: 11.8277 ( -1.0235 1.0244 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.07164e-07 ( -3.89762e-08 3.92003e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.032 sec. to 0.308 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.804452 ( -0.333144 0.218164 )
Epeak [keV] : 9999.12 ( -9999.13 -9999.13 )
Norm@50keV : 0.103692 ( -0.00894746 0.0438786 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.54 using 59 PHA bins.
# Reduced chi-squared = 1.063 for 56 degrees of freedom
# Null hypothesis probability = 3.482039e-01
Photon flux (15-150 keV) in 0.34 sec: 11.8533 ( -1.2518 1.1978 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.09805e-07 ( 0 0 ) ergs/cm2
Band function
Time interval is from -0.032 sec. to 0.308 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] : 24.9376 (-3.44988 4.30486)
R^2/D10^2 : 0.298312 (-0.109789 0.165514)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 93.63 using 59 PHA bins.
# Reduced chi-squared = 1.643 for 57 degrees of freedom
# Null hypothesis probability = 1.599106e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.097e-08 1.926e-09
25- 50 6.217e-08 8.024e-09
50-150 2.868e-07 4.173e-08
15-150 3.599e-07 4.619e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 44.3279 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 119.50 using 59 PHA bins.
# Reduced chi-squared = 2.0965 for 57 degrees of freedom
# Null hypothesis probability = 2.504625e-06
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.753e-08 2.067e-08
25- 50 7.219e-08 3.107e-08
50-150 1.583e-07 8.418e-08
15-150 2.681e-07 1.242e-07
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 10.9096 (-2.67421 3.44804)
R1^2/D10^2 : 2.45163 (-1.13762 1.94391)
kT2 [keV] : 84.4027 (-38.7337 -84.5219)
R2^2/D10^2 : 1.14089E-02 (-0.00930233 0.0345312)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.60 using 59 PHA bins.
#Fit statistic : Chi-Squared = 53.59 using 59 PHA bins.
# Reduced chi-squared = 0.9927 for 55 degrees of freedom
# Reduced chi-squared = 0.9743 for 55 degrees of freedom
# Null hypothesis probability = 4.899799e-01
# Null hypothesis probability = 5.287945e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.294e-08 1.156e-08
25- 50 7.083e-08 3.024e-08
50-150 3.046e-07 1.660e-07
15-150 3.983e-07 1.998e-07
Peak spectrum fit
Power-law model
Time interval is from -0.360 sec. to 0.640 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.858172 ( -0.19448 0.186452 )
Norm@50keV : 3.66062E-02 ( -0.00384205 0.0037955 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.26 using 59 PHA bins.
# Reduced chi-squared = 0.9871 for 57 degrees of freedom
# Null hypothesis probability = 5.027013e-01
Photon flux (15-150 keV) in 1 sec: 0.207362 ( -0.03839 0.244898 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.17705e-07 ( -4.53647e-08 4.55392e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.360 sec. to 0.640 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.862986 ( -0.335293 0.177433 )
Epeak [keV] : 9999.36 ( -9999.36 -9999.36 )
Norm@50keV : 3.69215E-02 ( -0.00411767 0.012894 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.32 using 59 PHA bins.
# Reduced chi-squared = 1.006 for 56 degrees of freedom
# Null hypothesis probability = 4.626967e-01
Photon flux (15-150 keV) in 1 sec: 4.23550 ( -0.46987 0.40087 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.18958e-07 ( 0 0 ) ergs/cm2
Band function
Time interval is from -0.360 sec. to 0.640 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] : 25.5875 (-4.32889 5.85683)
R^2/D10^2 : 9.52081E-02 (-0.0425675 0.0712781)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 85.62 using 59 PHA bins.
# Reduced chi-squared = 1.502 for 57 degrees of freedom
# Null hypothesis probability = 8.421134e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.070e-08 2.387e-09
25- 50 6.139e-08 1.180e-08
50-150 2.969e-07 5.370e-08
15-150 3.690e-07 5.830e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-18.5195 -200)
Norm : 16.7644 (-1.79491 1.79491)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 94.53 using 59 PHA bins.
# Reduced chi-squared = 1.658 for 57 degrees of freedom
# Null hypothesis probability = 1.314043e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.173e-08 2.213e-08
25- 50 8.027e-08 4.364e-08
50-150 1.760e-07 9.625e-08
15-150 2.981e-07 1.640e-07
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 11.5217 (-2.29627 3.09851)
R1^2/D10^2 : 0.813432 (-0.474067 0.814788)
kT2 [keV] : 199.503 (-148.047 -199.503)
R2^2/D10^2 : 9.96242E-04 (-0.000210674 0.0110396)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.74 using 59 PHA bins.
#Fit statistic : Chi-Squared = 50.68 using 59 PHA bins.
# Reduced chi-squared = 0.9226 for 55 degrees of freedom
# Reduced chi-squared = 0.9214 for 55 degrees of freedom
# Null hypothesis probability = 6.379312e-01
# Null hypothesis probability = 6.403163e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.484e-08 1.083e-08
25- 50 7.779e-08 3.376e-08
50-150 3.252e-07 2.911e-07
15-150 4.278e-07 3.597e-07
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: 0.811237 ( -0.155697 0.151354 )
Norm@50keV : 0.102950 ( -0.0090348 0.00898819 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.50 using 59 PHA bins.
# Reduced chi-squared = 1.044 for 57 degrees of freedom
# Null hypothesis probability = 3.846414e-01
Photon flux (15-150 keV) in 0.34 sec: 11.8279 ( -1.0235 1.02436 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.07126e-07 ( -3.90385e-08 3.92591e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.804454 ( -0.338433 0.212929 )
Epeak [keV] : 9999.13 ( -9999.15 -9999.15 )
Norm@50keV : 0.103692 ( -0.00894747 0.0438785 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.54 using 59 PHA bins.
# Reduced chi-squared = 1.063 for 56 degrees of freedom
# Null hypothesis probability = 3.482039e-01
Photon flux (15-150 keV) in 0.34 sec: 11.8343 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 4.06657e-07 ( 0 0 ) 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) = 6.63e-08
S(50-100 keV) = 1.51e-07
T90 vs. Hardness ratio plot
T90 = 0.287999987602234 sec.
Hardness ratio (energy fluence ratio) = 2.27753
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 2.3297
Count Ratio (50-100 keV) / (15-25 keV) = 2.74366
Mask shadow pattern
IMX = 8.139942177341422E-01, IMY = 4.691928073960250E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
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:
-432.075400 -415.789200
-239.976000 -0.032000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
299.5943 35.1936 0.8 28.0 -44.8 6.0941 14.1 0.5 Cyg X-1
308.0851 40.9788 2.2 24.4 -26.4 1.9068 5.2 1.9 Cyg X-3
326.1139 38.3900 4.1 14.4 4.6 0.9661 2.8 4.9 Cyg X-2
347.9978 -11.0233 3.6 39.7 166.0 1.7604 3.2 ------ UNKNOWN
349.4802 -23.7513 2.6 51.8 171.8 4.9352 4.4 ------ UNKNOWN
320.8800 36.2246 3.7 14.1 -14.5 0.9679 3.1 ------ UNKNOWN
276.9692 54.8079 3.6 49.0 -22.0 2.5960 3.2 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.032000 0.308000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
299.5297 35.3370 100.5 28.1 -44.5 -0.0022 -0.1 8.6 Cyg X-1
308.2811 41.0057 46.1 24.3 -26.2 -0.0038 -0.3 8.4 Cyg X-3
326.0510 38.1361 0.0 14.2 4.2 0.0158 1.1 12.5 Cyg X-2
350.5139 -8.8459 2.0 39.0 161.0 0.1242 5.8 ------ UNKNOWN
345.2554 0.4112 2.0 28.3 160.3 0.0953 5.9 ------ UNKNOWN
350.2801 -28.8734 2.5 56.8 173.5 0.3600 4.6 ------ UNKNOWN
284.4096 51.3145 2.4 43.7 -24.6 0.1297 4.8 ------ UNKNOWN
283.2694 47.6447 0.6 43.2 -30.0 0.5778 19.8 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
72.324580 962.046000
1435.024000 1555.752800
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4515 35.2049 7.3 24.7 -83.3 2.0827 1.6 8.3 Her X-1
288.7066 11.0072 5.5 36.9 -162.5 2.8812 2.1 6.5 GRS 1915+105
299.6061 35.2171 0.6 17.4 156.1 21.7618 20.2 1.2 Cyg X-1
308.1613 40.9950 1.5 18.9 127.8 8.2316 7.8 3.4 Cyg X-3
326.2315 38.4511 60.7 32.2 116.9 0.3218 0.2 8.3 Cyg X-2
310.0016 -4.1209 3.2 56.8 174.0 14.1745 3.6 ------ UNKNOWN
253.1063 40.9279 2.6 22.5 -69.8 5.7317 4.4 ------ UNKNOWN
Plot creation:
Wed Nov 27 16:20:40 EST 2019