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
243.5699 14.7595 0.0045 41.4315 167.1325 6.6316201 43.413 TRIG_00844615
Foreground time interval of the image:
-10.008 11.389 (delta_t = 21.397 [sec])
Background time interval of the image:
-188.211 -10.008 (delta_t = 178.203 [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 1.024000
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 1.024000
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 1.024000
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 -10.008 sec. to 25.588 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.00611 ( -0.0635331 0.0641999 )
Norm@50keV : 1.48188E-02 ( -0.000522661 0.000520661 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.02 using 59 PHA bins.
# Reduced chi-squared = 0.8073 for 57 degrees of freedom
# Null hypothesis probability = 8.507754e-01
Photon flux (15-150 keV) in 35.6 sec: 2.22925 ( -0.08226 0.08264 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.86745e-06 ( -1.65799e-07 1.66054e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -10.008 sec. to 25.588 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.65656 ( -0.276332 0.259158 )
Epeak [keV] : 47.8950 ( -14.0589 13.1166 )
Norm@50keV : 2.22799E-02 ( -0.00568209 0.00830965 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 40.62 using 59 PHA bins.
# Reduced chi-squared = 0.7253 for 56 degrees of freedom
# Null hypothesis probability = 9.392158e-01
Photon flux (15-150 keV) in 35.6 sec: 2.17119 ( -0.09169 0.09215 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.73306e-06 ( -1.93117e-07 1.92441e-07 ) ergs/cm2
Band function
Time interval is from -10.008 sec. to 25.588 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] : 11.8171 ( )
R^2/D10^2 : 0.514450 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 230.75 using 59 PHA bins.
# Reduced chi-squared = 4.0482 for 57 degrees of freedom
# Null hypothesis probability = 9.113308e-23
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.402e-07 3.756e-08
25- 50 1.669e-06 6.319e-08
50-150 1.387e-06 9.897e-08
15-150 3.597e-06 1.257e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 77.3054 (-7.86281 9.31222)
Norm : 10.2372 (-0.596866 0.640728)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.55 using 59 PHA bins.
# Reduced chi-squared = 0.7816 for 57 degrees of freedom
# Null hypothesis probability = 8.849614e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.434e-07 4.788e-08
25- 50 1.540e-06 5.144e-08
50-150 2.124e-06 1.456e-07
15-150 4.607e-06 1.744e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.12404 (-0.756266 0.763637)
R1^2/D10^2 : 2.65846 (-0.783598 1.3043)
kT2 [keV] : 24.1066 (-3.31615 4.72385)
R2^2/D10^2 : 2.26054E-02 (-0.0111963 0.0187662)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.18 using 59 PHA bins.
# Reduced chi-squared = 0.8577 for 55 degrees of freedom
# Null hypothesis probability = 7.643279e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.683e-07 9.060e-08
25- 50 1.574e-06 1.184e-07
50-150 2.191e-06 3.266e-07
15-150 4.633e-06 4.681e-07
Peak spectrum fit
Power-law model
Time interval is from -3.692 sec. to -2.692 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.73628 ( -0.153798 0.158793 )
Norm@50keV : 3.03140E-02 ( -0.00318023 0.00315425 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.99 using 59 PHA bins.
# Reduced chi-squared = 1.053 for 57 degrees of freedom
# Null hypothesis probability = 3.677137e-01
Photon flux (15-150 keV) in 1 sec: 4.07858 ( -0.40854 0.40913 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.79995e-07 ( -3.01791e-08 3.03823e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -3.692 sec. to -2.692 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 5.07957E-02 ( -1.03314 0.834946 )
Epeak [keV] : 55.8559 ( -7.26215 12.1504 )
Norm@50keV : 0.226653 ( -0.14147 0.543149 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.99 using 59 PHA bins.
# Reduced chi-squared = 0.8213 for 56 degrees of freedom
# Null hypothesis probability = 8.275885e-01
Photon flux (15-150 keV) in 1 sec: 3.56341 ( -0.60159 0.48567 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.59406e-07 ( -3.12247e-08 3.19608e-08 ) ergs/cm2
Band function
Time interval is from -3.692 sec. to -2.692 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] : 13.2018 (-1.239 1.37025)
R^2/D10^2 : 0.756560 (-0.232492 0.329359)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.61 using 59 PHA bins.
# Reduced chi-squared = 0.9054 for 57 degrees of freedom
# Null hypothesis probability = 6.769387e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.796e-08 4.730e-09
25- 50 9.789e-08 1.178e-08
50-150 1.088e-07 2.141e-08
15-150 2.347e-07 2.745e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 117.219 (-33.5495 53.7205)
Norm : 17.5748 (-2.09145 2.55443)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.57 using 59 PHA bins.
# Reduced chi-squared = 0.9222 for 57 degrees of freedom
# Null hypothesis probability = 6.419542e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.582e-08 6.325e-09
25- 50 8.163e-08 1.046e-08
50-150 1.440e-07 5.769e-08
15-150 2.714e-07 6.725e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.89778 (-2.87944 107.202)
R1^2/D10^2 : 101.619 (-107.265 -108.096)
kT2 [keV] : 14.2559 (-1.82349 127.348)
R2^2/D10^2 : 0.543037 (-0.546151 0.190902)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.14 using 59 PHA bins.
# Reduced chi-squared = 0.8389 for 55 degrees of freedom
# Null hypothesis probability = 7.968907e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.854e-08 1.334e-08
25- 50 9.007e-08 1.804e-08
50-150 1.190e-07 2.734e-08
15-150 2.476e-07 3.965e-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: 1.88552 ( -0.065496 0.0660492 )
Norm@50keV : 1.90148E-02 ( -0.000687452 0.000685516 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.40 using 59 PHA bins.
# Reduced chi-squared = 0.8842 for 57 degrees of freedom
# Null hypothesis probability = 7.192407e-01
Photon flux (15-150 keV) in 21.4 sec: 2.71220 ( -0.104212 0.104625 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.74076e-06 ( -1.34776e-07 1.34989e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.68585 ( -0.26887 0.243099 )
Epeak [keV] : 78.7902 ( -21.1446 -78.7918 )
Norm@50keV : 2.39157E-02 ( -0.00528686 0.00843793 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.61 using 59 PHA bins.
# Reduced chi-squared = 0.8680 for 56 degrees of freedom
# Null hypothesis probability = 7.479112e-01
Photon flux (15-150 keV) in 21.4 sec: 2.67342 ( -0.11412 0.11465 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.68677e-06 ( -1.52646e-07 1.51833e-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) = 1.47e-06
S(50-100 keV) = 1.46e-06
T90 vs. Hardness ratio plot
T90 = 30.1039998531342 sec.
Hardness ratio (energy fluence ratio) = 0.993197
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.19139
Count Ratio (50-100 keV) / (15-25 keV) = 0.646649
Mask shadow pattern
IMX = -8.604306448548975E-01, IMY = -1.965517898628813E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
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:
-188.211400 -10.008000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9716 -15.6403 0.6 36.3 118.3 8.8753 18.2 0.5 Sco X-1
254.4733 35.3926 6.3 47.1 -160.9 -0.8097 -1.8 3.1 Her X-1
256.0361 -37.6722 22.9 39.5 78.9 0.4559 0.5 10.6 4U 1700-377
256.3891 -36.4307 12.0 38.4 79.9 -0.7484 -1.0 2.3 GX 349+2
263.1653 -24.7466 10.7 25.8 86.2 0.3122 1.1 8.5 GX 1+4
268.3573 -1.2413 0.0 12.5 155.0 0.2924 1.4 12.7 SW J1753.5-0127
270.3080 -25.0542 2.6 22.3 72.7 1.1375 4.5 2.0 GX 5-1
270.2362 -25.6943 4.8 22.9 72.1 0.6493 2.4 4.6 GRS 1758-258
274.1251 -14.0274 6.1 10.9 81.7 0.4088 1.9 7.0 GX 17+2
275.8445 -30.4994 4.2 25.9 57.0 0.8159 2.8 9.0 H1820-303
285.0169 -24.7217 0.0 20.3 35.8 -0.4018 -1.8 12.0 HT1900.1-2455
288.8238 10.9430 1.5 18.0 -103.9 1.7614 7.4 1.5 GRS 1915+105
263.0811 -33.9369 8.1 33.1 74.9 0.6219 1.4 7.7 GX 354-0
294.6157 -53.7235 2.6 50.1 37.2 5.0805 4.4 ------ UNKNOWN
310.8817 -48.5769 2.4 50.8 22.4 3.7250 4.9 ------ UNKNOWN
247.4534 3.7002 2.2 34.0 152.3 1.8575 5.3 ------ UNKNOWN
275.0945 7.1843 0.3 13.2 -155.2 9.4461 44.6 ------ UNKNOWN
281.3523 43.5840 2.7 48.5 -130.9 4.7956 4.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-10.008000 11.388600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.1093 -15.6939 11.6 36.2 118.2 0.1916 1.0 8.2 Sco X-1
254.5167 35.1968 6.4 46.9 -161.0 -0.2978 -1.8 9.2 Her X-1
255.7344 -37.8428 0.0 39.8 79.0 0.5875 1.9 11.9 4U 1700-377
256.6406 -36.4486 14.4 38.3 79.6 0.2006 0.8 10.0 GX 349+2
263.0786 -24.5951 6.3 25.7 86.6 0.1873 1.8 9.8 GX 1+4
268.2710 -1.5634 5.8 12.5 153.5 0.1472 2.0 8.8 SW J1753.5-0127
270.2898 -24.8792 0.0 22.1 73.0 0.0486 0.5 12.0 GX 5-1
270.2993 -25.9393 6.7 23.1 71.7 0.1634 1.7 11.8 GRS 1758-258
274.0439 -13.8663 5.0 10.9 82.5 -0.1843 -2.3 10.4 GX 17+2
276.0852 -30.4278 7.1 25.8 56.6 0.1690 1.6 9.1 H1820-303
285.2694 -24.9063 0.0 20.5 35.3 -0.1723 -2.1 12.7 HT1900.1-2455
288.6255 10.9651 10.5 17.9 -104.5 0.0957 1.1 10.3 GRS 1915+105
262.8160 -33.7881 8.8 33.1 75.4 0.2017 1.3 9.1 GX 354-0
243.5699 14.7595 0.3 41.4 167.1 6.6316 43.4 ------ UNKNOWN
253.2692 22.1060 2.6 37.9 -175.2 0.4832 4.4 ------ UNKNOWN
290.5766 26.7785 2.5 33.2 -115.0 0.4952 4.5 ------ UNKNOWN
294.1308 33.7241 2.2 40.8 -114.2 1.0296 5.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
102.388600 962.958000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9906 -15.6440 0.4 30.5 127.1 34.6579 25.9 0.7 Sco X-1
254.5749 35.3738 6.3 22.8 -26.7 1.5406 1.8 6.0 Her X-1
268.3125 -1.6069 9.4 29.4 71.5 1.5797 1.2 9.8 SW J1753.5-0127
288.7322 10.9972 4.8 44.1 39.1 5.0388 2.4 5.0 GRS 1915+105
299.6121 35.3018 3.6 53.9 6.5 8.3159 3.2 6.1 Cyg X-1
275.0904 7.1856 0.3 31.8 50.1 46.0372 33.4 ------ UNKNOWN
278.8734 12.4769 2.3 34.3 39.1 6.8818 5.0 ------ UNKNOWN
289.0144 20.2850 2.2 43.5 25.6 8.7449 5.3 ------ UNKNOWN
290.4878 35.5219 2.5 46.7 4.5 7.1696 4.6 ------ UNKNOWN
225.3756 -3.2039 2.5 25.5 176.2 3.9697 4.7 ------ UNKNOWN
209.9769 -15.9771 2.7 45.3 178.2 7.0292 4.3 ------ UNKNOWN
190.4013 -5.3471 4.2 56.4 -157.2 16.5317 2.8 ------ UNKNOWN
191.9875 14.9508 3.8 49.8 -133.1 18.2969 3.0 ------ UNKNOWN
Plot creation:
Mon Aug 6 22:39:32 EDT 2018