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
297.8588 23.6438 0.0168 33.3038 -152.6777 2.0300866 11.401 TRIG_00814305
Foreground time interval of the image:
-51.120 11.936 (delta_t = 63.056 [sec])
Background time interval of the image:
-129.467 -51.120 (delta_t = 78.347 [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 -51.120 sec. to 11.936 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.34627 ( -0.242233 0.265386 )
Norm@50keV : 1.36974E-03 ( -0.000256972 0.000251898 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.12 using 59 PHA bins.
# Reduced chi-squared = 0.9320 for 57 degrees of freedom
# Null hypothesis probability = 6.213302e-01
Photon flux (15-150 keV) in 63.06 sec: 0.245721 ( -0.030457 0.030459 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.33054e-07 ( -1.24286e-07 1.27947e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -51.120 sec. to 11.936 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.57291 ( -1.3126 0.427269 )
Epeak [keV] : 20.7242 ( )
Norm@50keV : 4.11126E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.25 using 59 PHA bins.
# Reduced chi-squared = 0.9152 for 56 degrees of freedom
# Null hypothesis probability = 6.549154e-01
Photon flux (15-150 keV) in 63.06 sec: 0.240354 ( -0.030982 0.031074 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from -51.120 sec. to 11.936 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.56921 ( -1.4538 1.10274 )
beta : -10.0000 ( 10 5.32907e-15 )
Epeak [keV] : 20.8686 ( -10.872 14.3257 )
Norm@50keV : 4.12283E-03 ( -0.00229419 0.0247364 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.25 using 59 PHA bins.
# Reduced chi-squared = 0.9318 for 55 degrees of freedom
# Null hypothesis probability = 6.186537e-01
Photon flux (15-150 keV) in 63.06 sec: 0.242001 ( -0.032875 0.029245 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.9047e-07 ( -1.49446e-07 1.27977e-07 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.54601 (-1.02366 1.21677)
R^2/D10^2 : 0.338081 (-0.154701 0.280588)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.97 using 59 PHA bins.
# Reduced chi-squared = 1.070 for 57 degrees of freedom
# Null hypothesis probability = 3.352891e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.095e-07 4.543e-08
25- 50 3.304e-07 7.053e-08
50-150 7.131e-08 2.988e-08
15-150 6.111e-07 1.057e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 38.8613 (-10.544 16.4493)
Norm : 1.62188 (-0.362646 0.497622)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.35 using 59 PHA bins.
# Reduced chi-squared = 0.9009 for 57 degrees of freedom
# Null hypothesis probability = 6.859155e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.325e-07 3.894e-08
25- 50 3.021e-07 4.931e-08
50-150 2.264e-07 9.144e-08
15-150 7.610e-07 1.330e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.45606 (-1.3546 1.34903)
R1^2/D10^2 : 0.999417 (-0.561664 0.850475)
kT2 [keV] : 17.5973 (-5.96089 11.879)
R2^2/D10^2 : 6.40043E-03 (-0.00548694 0.0317655)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.38 using 59 PHA bins.
# Reduced chi-squared = 0.8979 for 55 degrees of freedom
# Null hypothesis probability = 6.882518e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.398e-07 1.201e-07
25- 50 2.874e-07 1.393e-07
50-150 2.665e-07 1.700e-07
15-150 7.937e-07 4.063e-07
Peak spectrum fit
Power-law model
Time interval is from -0.348 sec. to 0.652 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.21027 ( -0.364219 0.421672 )
Norm@50keV : 7.80730E-03 ( -0.00214982 0.00203505 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.09 using 59 PHA bins.
# Reduced chi-squared = 1.019 for 57 degrees of freedom
# Null hypothesis probability = 4.348104e-01
Photon flux (15-150 keV) in 1 sec: 1.29967 ( -0.25068 0.25081 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.35275e-08 ( -1.676e-08 1.72838e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.348 sec. to 0.652 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.91790 ( )
Epeak [keV] : 12.4742 ( )
Norm@50keV : 1.13781E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.97 using 59 PHA bins.
# Reduced chi-squared = 1.035 for 56 degrees of freedom
# Null hypothesis probability = 4.026600e-01
Photon flux (15-150 keV) in 1 sec: 1.28900 ( -0.25357 0.24837 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from -0.348 sec. to 0.652 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.95903 ( -4.59984 1.97273 )
beta : -10.0000 ( 10 3.55271e-14 )
Epeak [keV] : 7.11680 ( -6.43403 -7.1168 )
Norm@50keV : 1.08292E-02 ( -0.00359694 0.0524815 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.96 using 59 PHA bins.
# Reduced chi-squared = 1.054 for 55 degrees of freedom
# Null hypothesis probability = 3.666325e-01
Photon flux (15-150 keV) in 1 sec: 1.29920 ( -0.26698 0.22622 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.56171e-08 ( -1.6315e-08 1.51524e-08 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.84640 (-3.3482 3.77148)
R^2/D10^2 : 0.600247 (-0.41512 2.44847)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.38 using 59 PHA bins.
# Reduced chi-squared = 1.217 for 57 degrees of freedom
# Null hypothesis probability = 1.258280e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.179e-08 4.846e-09
25- 50 2.867e-08 1.066e-08
50-150 1.430e-08 7.673e-09
15-150 5.476e-08 2.186e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 54.4201 (-22.906 49.6104)
Norm : 7.05572 (-2.09063 3.20113)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.68 using 59 PHA bins.
# Reduced chi-squared = 1.029 for 57 degrees of freedom
# Null hypothesis probability = 4.136726e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.742e-08 5.963e-09
25- 50 2.570e-08 1.458e-08
50-150 2.689e-08 2.466e-08
15-150 7.001e-08 4.323e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.05342 (-1.20326 1.59055)
R1^2/D10^2 : 17.9561 (-14.0357 91.6908)
kT2 [keV] : 17.3908 (-4.75501 7.80227)
R2^2/D10^2 : 5.34518E-02 (-0.0409492 0.078863)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.86 using 59 PHA bins.
# Reduced chi-squared = 0.9975 for 55 degrees of freedom
# Null hypothesis probability = 4.798034e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.068e-08 1.139e-08
25- 50 2.126e-08 1.127e-08
50-150 3.213e-08 2.022e-08
15-150 7.407e-08 4.008e-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: 2.34627 ( -0.242233 0.265386 )
Norm@50keV : 1.36974E-03 ( -0.000256972 0.000251898 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.12 using 59 PHA bins.
# Reduced chi-squared = 0.9320 for 57 degrees of freedom
# Null hypothesis probability = 6.213302e-01
Photon flux (15-150 keV) in 63.06 sec: 0.245692 ( -0.0304531 0.0304554 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.32865e-07 ( -1.24184e-07 1.28006e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.57273 ( -1.31246 0.726102 )
Epeak [keV] : 20.7280 ( )
Norm@50keV : 4.11226E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.25 using 59 PHA bins.
# Reduced chi-squared = 0.9152 for 56 degrees of freedom
# Null hypothesis probability = 6.549154e-01
Photon flux (15-150 keV) in 63.06 sec: 0.240285 ( -0.030968 0.031058 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.7519e-07 ( -1.32735e-07 1.44206e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.56921 ( -1.4538 1.10274 )
beta : -10.0000 ( 10 0 )
Epeak [keV] : 20.8686 ( -10.872 14.3257 )
Norm@50keV : 4.12283E-03 ( -0.00229418 0.0247364 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.25 using 59 PHA bins.
# Reduced chi-squared = 0.9318 for 55 degrees of freedom
# Null hypothesis probability = 6.186537e-01
Photon flux (15-150 keV) in 63.06 sec: 0.242001 ( -0.032875 0.029245 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.9047e-07 ( -1.49446e-07 1.27977e-07 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 2.71e-07
S(50-100 keV) = 2.13e-07
T90 vs. Hardness ratio plot
T90 = 55.4240000247955 sec.
Hardness ratio (energy fluence ratio) = 0.785978
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.946479
Count Ratio (50-100 keV) / (15-25 keV) = 0.42208
Mask shadow pattern
IMX = -5.836790542854300E-01, IMY = 3.015471837407213E-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:
-129.467410 -51.120000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9519 -15.6344 1.7 36.4 67.4 2.0483 6.9 1.6 Sco X-1
254.3186 35.3881 7.0 47.2 148.0 -0.7700 -1.7 7.3 Her X-1
256.0113 -37.8846 2.5 39.7 27.8 1.0212 4.6 2.7 4U 1700-377
256.5817 -36.5137 12.2 38.4 28.6 -0.2157 -0.9 8.9 GX 349+2
262.9775 -24.7778 3.9 25.9 35.5 0.4315 3.0 2.6 GX 1+4
264.6040 -44.4220 9.8 41.8 14.1 -0.2525 -1.2 6.2 4U 1735-44
268.5081 -1.6057 204.7 12.3 102.6 -0.0079 -0.1 12.4 SW J1753.5-0127
270.1412 -24.9161 7.4 22.2 22.3 0.2237 1.6 12.5 GX 5-1
270.2080 -25.8026 3.2 23.0 21.1 0.5169 3.6 6.2 GRS 1758-258
273.8628 -13.8762 0.0 11.0 32.3 0.0698 0.5 12.7 GX 17+2
275.9683 -30.4188 7.9 25.8 5.9 0.2038 1.5 3.8 H1820-303
285.1823 -25.0713 14.3 20.7 -15.3 -0.1110 -0.8 12.1 HT1900.1-2455
288.7948 10.9553 1.4 18.0 -155.0 1.1189 8.4 0.6 GRS 1915+105
299.6040 35.1761 1.2 44.0 -160.0 2.3574 9.7 1.7 Cyg X-1
308.2257 40.9231 9.4 52.5 -156.4 0.5475 1.2 5.5 Cyg X-3
263.0075 -33.8260 49.1 33.1 24.2 0.0422 0.2 1.1 GX 354-0
275.0926 7.1923 0.4 13.2 153.8 3.6355 26.8 ------ UNKNOWN
281.2686 52.1879 2.5 57.1 177.9 4.1415 4.6 ------ UNKNOWN
320.7358 22.3895 2.7 48.0 -129.1 2.7747 4.2 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-51.120000 11.936000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8671 -15.5828 7.3 36.4 67.5 -0.4795 -1.6 7.4 Sco X-1
254.3339 35.2705 11.9 47.1 147.9 0.4374 1.0 7.4 Her X-1
256.0476 -37.8053 4.4 39.6 27.8 -0.6279 -2.6 3.7 4U 1700-377
256.3751 -36.4919 5.1 38.5 28.9 0.5050 2.3 5.1 GX 349+2
262.9224 -24.8787 9.5 26.0 35.4 -0.1936 -1.2 9.3 GX 1+4
264.5661 -44.5723 0.0 42.0 14.0 0.1471 0.6 10.5 4U 1735-44
268.2641 -1.4409 6.4 12.6 103.0 0.2598 1.8 6.3 SW J1753.5-0127
270.1199 -25.1988 3.7 22.5 22.0 0.4215 3.1 11.5 GX 5-1
270.1583 -25.8054 5.9 23.0 21.2 -0.2788 -2.0 8.6 GRS 1758-258
274.0184 -14.0748 6.4 11.1 31.1 0.2302 1.8 2.4 GX 17+2
276.0810 -30.3816 12.8 25.8 5.7 -0.1346 -0.9 8.1 H1820-303
285.1852 -25.0550 6.2 20.6 -15.3 -0.2535 -1.9 11.4 HT1900.1-2455
288.7892 10.7971 11.6 17.8 -154.7 0.1360 1.0 8.9 GRS 1915+105
299.4549 35.3272 7.5 44.1 -160.2 0.3863 1.5 10.0 Cyg X-1
308.1551 40.9660 23.4 52.5 -156.4 -0.2378 -0.5 2.2 Cyg X-3
262.8244 -33.9100 11.9 33.2 24.3 0.1730 1.0 9.4 GX 354-0
243.7156 14.2150 2.7 41.1 115.5 2.2340 4.3 ------ UNKNOWN
267.2594 -39.0105 2.2 36.1 14.6 0.9246 5.2 ------ UNKNOWN
286.5631 46.2648 2.3 51.5 -177.3 2.1181 5.0 ------ UNKNOWN
297.8588 23.6438 1.0 33.3 -152.7 2.0299 11.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
73.732630 962.532000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6367 35.3998 6.4 39.1 100.9 -4.7788 -1.8 9.4 Her X-1
268.3168 -1.4052 7.0 38.1 36.3 2.4644 1.7 4.2 SW J1753.5-0127
270.1968 -24.9909 14.0 55.5 13.9 -3.3600 -0.8 7.1 GX 5-1
270.3492 -25.8179 10.3 56.1 13.3 5.0830 1.1 5.2 GRS 1758-258
274.0526 -14.0708 14.0 44.3 17.3 1.2806 0.8 3.4 GX 17+2
285.1733 -24.8480 5.4 50.0 -1.7 -3.8429 -2.1 8.6 HT1900.1-2455
288.8084 10.9391 0.9 15.3 19.0 10.8718 12.9 0.7 GRS 1915+105
299.5870 35.2044 0.3 11.7 170.3 32.5102 35.9 0.2 Cyg X-1
308.0772 40.9924 1.8 19.4 -172.9 5.3500 6.5 2.8 Cyg X-3
326.1543 38.5075 8.0 28.3 -145.2 -1.5022 -1.4 11.2 Cyg X-2
275.0793 7.1896 0.3 27.3 40.0 39.9758 39.6 ------ UNKNOWN
293.6823 8.3970 2.4 15.7 -1.4 4.1346 4.7 ------ UNKNOWN
352.1337 69.4938 2.8 55.8 -176.6 16.9962 4.1 ------ UNKNOWN
348.2288 38.9357 2.5 45.1 -138.9 10.2861 4.6 ------ UNKNOWN
343.3148 19.0306 3.3 42.4 -109.6 16.2030 3.5 ------ UNKNOWN
Plot creation:
Sat Apr 7 22:25:10 EDT 2018