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
211.5443 -43.0831 0.0153 17.8943 165.8796 1.1509516 12.561 TRIG_00840853
Foreground time interval of the image:
25.320 82.568 (delta_t = 57.248 [sec])
Background time interval of the image:
-239.000 25.320 (delta_t = 264.320 [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 80.000000
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 80.000000
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 80.000000
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 25.320 sec. to 82.568 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.62654 ( -0.183723 0.187961 )
Norm@50keV : 1.16970E-03 ( -0.000154633 0.000152768 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 82.25 using 59 PHA bins.
# Reduced chi-squared = 1.443 for 57 degrees of freedom
# Null hypothesis probability = 1.596061e-02
Photon flux (15-150 keV) in 57.25 sec: 0.151579 ( -0.017501 0.017502 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.24477e-07 ( -8.76366e-08 8.97978e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 25.320 sec. to 82.568 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.813743 ( -1.73077 1.25099 )
Epeak [keV] : 43.4888 ( -5.72686 9.9315 )
Norm@50keV : 3.65458E-02 ( -0.0421999 0.438578 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.04 using 59 PHA bins.
# Reduced chi-squared = 1.215 for 56 degrees of freedom
# Null hypothesis probability = 1.298446e-01
Photon flux (15-150 keV) in 57.25 sec: 0.142184 ( -0.01711 0.017336 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.73234e-07 ( -7.45069e-08 9.16973e-08 ) ergs/cm2
Band function
Time interval is from 25.320 sec. to 82.568 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] : 10.6601 (-1.14067 1.31966)
R^2/D10^2 : 6.16068E-02 (-0.0217532 0.0320622)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.91 using 59 PHA bins.
# Reduced chi-squared = 1.209 for 57 degrees of freedom
# Null hypothesis probability = 1.340733e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.317e-08 1.517e-08
25- 50 2.257e-07 3.249e-08
50-150 1.413e-07 3.916e-08
15-150 4.502e-07 6.183e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 111.940 (-39.1836 -113.031)
Norm : 0.667654 (-0.0896415 0.102693)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 77.30 using 59 PHA bins.
# Reduced chi-squared = 1.356 for 57 degrees of freedom
# Null hypothesis probability = 3.802670e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.978e-08 1.586e-08
25- 50 1.763e-07 3.180e-08
50-150 3.038e-07 1.547e-07
15-150 5.799e-07 1.750e-07
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 9.72779 (-1.34951 1.11398)
R1^2/D10^2 : 8.06354E-02 (-0.0226338 0.0522541)
kT2 [keV] : 198.989 (-198.993 -198.993)
R2^2/D10^2 : 1.17531E-05 (-6.98394e-06 0.00158684)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.10 using 59 PHA bins.
#Fit statistic : Chi-Squared = 63.01 using 59 PHA bins.
# Reduced chi-squared = 1.147 for 55 degrees of freedom
# Reduced chi-squared = 1.146 for 55 degrees of freedom
# Null hypothesis probability = 2.116757e-01
# Null hypothesis probability = 2.141257e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.652e-08 2.092e-08
25- 50 2.185e-07 5.367e-08
50-150 2.736e-07 6.379e-08
15-150 5.786e-07 1.147e-07
Peak spectrum fit
Power-law model
Time interval is from 42.988 sec. to 43.988 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.62701 ( -0.653426 0.718826 )
Norm@50keV : 2.41637E-03 ( -0.00116959 0.00113479 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.66 using 59 PHA bins.
# Reduced chi-squared = 1.082 for 57 degrees of freedom
# Null hypothesis probability = 3.129613e-01
Photon flux (15-150 keV) in 1 sec: 0.313191 ( -0.13034 0.130551 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.25388e-08 ( -1.09147e-08 1.20042e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 42.988 sec. to 43.988 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -2.40812 ( 2.93031 4.84022 )
Epeak [keV] : 38.4758 ( -10.3644 7188.31 )
Norm@50keV : 0.911878 ( -0.872546 244751 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.42 using 59 PHA bins.
# Reduced chi-squared = 1.061 for 56 degrees of freedom
# Null hypothesis probability = 3.520660e-01
Photon flux (15-150 keV) in 1 sec: 0.298350 ( -0.120778 0.12442 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.63016e-08 ( -7.77767e-09 1.2397e-08 ) ergs/cm2
Band function
Time interval is from 42.988 sec. to 43.988 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] : 10.3335 (-3.26553 5.30751)
R^2/D10^2 : 0.148864 (-0.148867 0.437374)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.50 using 59 PHA bins.
# Reduced chi-squared = 1.044 for 57 degrees of freedom
# Null hypothesis probability = 3.846980e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.271e-09 2.116e-09
25- 50 8.513e-09 5.315e-09
50-150 4.882e-09 3.899e-09
15-150 1.667e-08 1.090e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 99.9429 (-99.9833 -99.9833)
Norm : 1.41215 (-0.621202 0.96849)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.08 using 59 PHA bins.
# Reduced chi-squared = 1.072 for 57 degrees of freedom
# Null hypothesis probability = 3.317304e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.691e-09 2.343e-09
25- 50 6.381e-09 4.147e-09
50-150 1.034e-08 8.665e-09
15-150 2.041e-08 1.454e-08
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 200.000 (-200 -200)
R1^2/D10^2 : 1.78794E-05 (-1.78969e-05 -1.78969e-05)
kT2 [keV] : 9.73870 (-2.99744 5.51914)
R2^2/D10^2 : 0.176507 (-0.142782 0.371032)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.49 using 59 PHA bins.
#Fit statistic : Chi-Squared = 59.25 using 59 PHA bins.
# Reduced chi-squared = 1.082 for 55 degrees of freedom
# Reduced chi-squared = 1.077 for 55 degrees of freedom
# Null hypothesis probability = 3.155516e-01
# Null hypothesis probability = 3.234461e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.310e-09 6.075e-06
25- 50 8.423e-09 4.704e-05
50-150 5.130e-09 1.164e-03
15-150 1.686e-08 1.132e-03
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: 1.62654 ( -0.183723 0.187961 )
Norm@50keV : 1.16970E-03 ( -0.000154633 0.000152768 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 82.25 using 59 PHA bins.
# Reduced chi-squared = 1.443 for 57 degrees of freedom
# Null hypothesis probability = 1.596061e-02
Photon flux (15-150 keV) in 57.25 sec: 0.151573 ( -0.0175003 0.0175014 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.24386e-07 ( -8.7545e-08 8.98585e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.863490 ( -1.68783 1.26413 )
Epeak [keV] : 43.2581 ( -5.67286 9.97285 )
Norm@50keV : 3.98177E-02 ( -0.0425753 0.438002 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.99 using 59 PHA bins.
# Reduced chi-squared = 1.214 for 56 degrees of freedom
# Null hypothesis probability = 1.307771e-01
Photon flux (15-150 keV) in 57.25 sec: 0.142169 ( -0.017105 0.017335 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.73339e-07 ( -7.45229e-08 9.1762e-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) = 1.64e-07
S(50-100 keV) = 2.12e-07
T90 vs. Hardness ratio plot
T90 = 50.8159999847412 sec.
Hardness ratio (energy fluence ratio) = 1.29268
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.42094
Count Ratio (50-100 keV) / (15-25 keV) = 0.607514
Mask shadow pattern
IMX = -3.131250606222631E-01, IMY = -7.877021683520555E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 80.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 80.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 80.000000
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 25.320000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.0853 -60.5912 9.2 45.1 -166.1 0.7178 1.3 7.1 Cen X-3
186.5341 -62.6808 3.3 40.9 -176.2 1.5675 3.5 6.3 GX 301-2
244.9917 -15.6517 0.6 33.0 66.6 11.5294 20.4 1.0 Sco X-1
255.9023 -37.7703 6.2 39.8 106.3 2.0723 1.9 6.0 4U 1700-377
256.3619 -36.3512 4.1 40.0 104.1 3.3142 2.8 5.6 GX 349+2
249.7373 -36.0336 2.4 34.7 104.4 3.3166 4.8 ------ UNKNOWN
228.9161 19.5369 2.8 47.9 9.6 2.5138 4.2 ------ UNKNOWN
207.3685 -50.4786 2.8 25.5 172.4 1.2402 4.1 ------ UNKNOWN
215.1029 31.7577 3.2 57.1 -9.2 4.4782 3.6 ------ UNKNOWN
211.8489 26.9679 2.4 52.2 -12.4 3.2074 4.8 ------ UNKNOWN
196.2604 26.3354 3.1 53.5 -29.9 3.8351 3.8 ------ UNKNOWN
199.7737 32.7473 4.2 58.9 -24.4 4.9292 2.7 ------ UNKNOWN
153.7929 -38.3115 2.7 49.7 -133.2 6.8308 4.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
25.320000 82.568000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.0607 -60.6068 3.6 45.1 -166.1 -0.4896 -3.2 7.6 Cen X-3
187.0309 -62.7006 0.0 40.8 -176.5 -0.1203 -0.8 11.1 GX 301-2
244.8607 -15.7443 11.6 32.9 66.7 -0.1999 -1.0 9.3 Sco X-1
255.8673 -37.8809 5.6 39.7 106.5 -0.7754 -2.1 6.1 4U 1700-377
256.4408 -36.3006 9.2 40.1 104.0 0.4949 1.3 7.4 GX 349+2
242.2918 -6.5211 2.8 35.1 50.0 0.7750 4.2 ------ UNKNOWN
215.0970 -62.8093 2.7 37.7 163.9 0.5918 4.2 ------ UNKNOWN
211.5443 -43.0832 0.9 17.9 165.9 1.1504 12.6 ------ UNKNOWN
212.1619 6.4367 2.3 31.6 -11.3 0.5109 5.0 ------ UNKNOWN
211.0075 33.9644 2.4 59.2 -13.3 2.6581 4.8 ------ UNKNOWN
181.7638 -22.5708 2.6 27.0 -103.8 0.5543 4.5 ------ UNKNOWN
146.4651 -48.8270 2.6 54.9 -146.5 2.1513 4.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
137.500660 963.017800
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.3907 -60.6691 5.9 30.2 -130.9 1.6536 2.0 3.5 Cen X-3
186.5833 -62.7522 4.4 24.5 -143.0 1.6684 2.7 2.3 GX 301-2
244.9852 -15.6406 0.7 39.5 65.7 37.3106 15.6 0.3 Sco X-1
255.8765 -37.9750 7.5 33.7 105.9 -2.2278 -1.5 9.4 4U 1700-377
256.4279 -36.4305 3.5 34.7 103.7 5.1486 3.3 0.6 GX 349+2
264.5933 -44.5447 14.6 37.6 120.3 1.3416 0.8 8.6 4U 1735-44
262.9892 -33.8320 18.4 40.7 103.9 1.7216 0.6 0.2 GX 354-0
215.3033 -62.6651 2.0 19.7 -175.9 3.3972 5.6 ------ UNKNOWN
171.1480 -18.2131 3.1 42.1 -57.5 8.0568 3.8 ------ UNKNOWN
162.5993 -29.3648 3.5 41.2 -78.0 12.7023 3.3 ------ UNKNOWN
162.5272 -28.9662 3.2 41.4 -77.5 14.6639 3.9 ------ UNKNOWN
Plot creation:
Fri Jul 6 14:41:18 EDT 2018