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
276.1873 -40.2017 0.0162 18.3779 172.1066 1.3692927 11.844 TRIG_00769567
Foreground time interval of the image:
17.240 72.501 (delta_t = 55.261 [sec])
Background time interval of the image:
-78.099 17.240 (delta_t = 95.339 [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 64.000000
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 64.000000
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 64.000000
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 17.240 sec. to 176.972 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.21526 ( -0.189969 0.187233 )
Norm@50keV : 9.90061E-04 ( -9.86662e-05 9.8565e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.01 using 59 PHA bins.
# Reduced chi-squared = 0.9300 for 57 degrees of freedom
# Null hypothesis probability = 6.255762e-01
Photon flux (15-150 keV) in 159.7 sec: 0.116469 ( -0.012206 0.012283 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.59748e-06 ( -1.73921e-07 1.75138e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 17.240 sec. to 176.972 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.21070 ( -0.725113 0.310781 )
Epeak [keV] : 9990.64 ( -9983.73 -9983.73 )
Norm@50keV : 9.94701E-04 ( -0.000348779 0.00128923 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.01 using 59 PHA bins.
# Reduced chi-squared = 0.9465 for 56 degrees of freedom
# Null hypothesis probability = 5.889596e-01
Photon flux (15-150 keV) in 159.7 sec: 0.116260 ( -0.013482 0.012473 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.59274e-06 ( -1.86613e-07 1.78163e-07 ) ergs/cm2
Band function
Time interval is from 17.240 sec. to 176.972 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] : 20.6511 (-2.57375 3.10414)
R^2/D10^2 : 4.71910E-03 (-0.00172125 0.00259299)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.39 using 59 PHA bins.
# Reduced chi-squared = 1.235 for 57 degrees of freedom
# Null hypothesis probability = 1.095982e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.115e-08 1.363e-08
25- 50 3.110e-07 5.182e-08
50-150 9.871e-07 1.702e-07
15-150 1.359e-06 2.029e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-28.6215 -200)
Norm : 0.487638 (-0.0493951 0.0493951)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.21 using 59 PHA bins.
# Reduced chi-squared = 1.109 for 57 degrees of freedom
# Null hypothesis probability = 2.664935e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.940e-07 1.075e-07
25- 50 3.731e-07 2.043e-07
50-150 8.184e-07 3.881e-07
15-150 1.385e-06 6.481e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.02749 (-1.4232 1.99217)
R1^2/D10^2 : 0.913576 (-0.763076 4.86632)
kT2 [keV] : 24.7781 (-3.75157 5.41735)
R2^2/D10^2 : 2.45870E-03 (-0.00116386 0.00177324)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.56 using 59 PHA bins.
# Reduced chi-squared = 0.8829 for 55 degrees of freedom
# Null hypothesis probability = 7.175838e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.792e-07 8.359e-08
25- 50 2.881e-07 7.226e-08
50-150 1.084e-06 2.650e-07
15-150 1.551e-06 2.982e-07
Peak spectrum fit
Power-law model
Time interval is from 67.128 sec. to 68.128 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.49040 ( -0.803059 0.823606 )
Norm@50keV : 3.41867E-03 ( -0.00132171 0.0012209 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.14 using 59 PHA bins.
# Reduced chi-squared = 1.020 for 57 degrees of freedom
# Null hypothesis probability = 4.330779e-01
Photon flux (15-150 keV) in 1 sec: 0.425687 ( -0.156122 0.156406 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.24893e-08 ( -1.3088e-08 1.33682e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 67.128 sec. to 68.128 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.32515 ( -2.11488 1.47069 )
Epeak [keV] : 115.583 ( )
Norm@50keV : 1.38271E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.62 using 59 PHA bins.
# Reduced chi-squared = 1.029 for 56 degrees of freedom
# Null hypothesis probability = 4.151946e-01
Photon flux (15-150 keV) in 1 sec: 0.287969 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 3.21684e-08 ( 0 0 ) ergs/cm2
Band function
Time interval is from 67.128 sec. to 68.128 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] : 25.6937 (-11.6389 27.3303)
R^2/D10^2 : 7.67050E-03 (-0.00765653 0.0451043)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.63 using 59 PHA bins.
# Reduced chi-squared = 1.099 for 57 degrees of freedom
# Null hypothesis probability = 2.832672e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.010e-09 3.967e-09
25- 50 6.558e-09 4.426e-09
50-150 7.111e-10 6.185e-10
15-150 1.328e-08 8.985e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 (-199.363 -199.363)
Norm : 1.72201 (-0.611639 0.611744)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.77 using 59 PHA bins.
# Reduced chi-squared = 1.031 for 57 degrees of freedom
# Null hypothesis probability = 4.104210e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.288e-09 2.649e-09
25- 50 8.248e-09 5.075e-09
50-150 1.809e-08 1.128e-08
15-150 3.063e-08 1.876e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.78401 (-1.9463 2.77649)
R1^2/D10^2 : 2.83396 (-2.50102 37.4997)
kT2 [keV] : 37.1840 (-16.3665 -36.9114)
R2^2/D10^2 : 2.27556E-03 (-0.00218086 0.00608678)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.67 using 59 PHA bins.
# Reduced chi-squared = 0.9940 for 55 degrees of freedom
# Null hypothesis probability = 4.872820e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.184e-09 3.651e-09
25- 50 6.217e-09 3.345e-09
50-150 2.494e-08 1.623e-08
15-150 3.734e-08 2.025e-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: 1.31298 ( -0.201732 0.199661 )
Norm@50keV : 1.57542E-03 ( -0.000166695 0.000166652 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.69 using 59 PHA bins.
# Reduced chi-squared = 0.8543 for 57 degrees of freedom
# Null hypothesis probability = 7.752087e-01
Photon flux (15-150 keV) in 55.26 sec: 0.188409 ( -0.0209234 0.0210358 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.57597e-07 ( -1.00174e-07 1.01012e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.30929 ( -0.584276 0.239497 )
Epeak [keV] : 1.00000E+04 ( -10000 -10000 )
Norm@50keV : 1.58183E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.70 using 59 PHA bins.
# Reduced chi-squared = 0.8697 for 56 degrees of freedom
# Null hypothesis probability = 7.448760e-01
Photon flux (15-150 keV) in 55.26 sec: 0.188404 ( -0.021098 0.020926 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.57143e-07 ( -5.05187e-08 1.00092e-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) = 3.39e-07
S(50-100 keV) = 5.83e-07
T90 vs. Hardness ratio plot
T90 = 98.62399995327 sec.
Hardness ratio (energy fluence ratio) = 1.71976
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.984943
Count Ratio (50-100 keV) / (15-25 keV) = 1.17679
Mask shadow pattern
IMX = -3.290798474514064E-01, IMY = -4.562491105586993E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
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:
-78.099400 17.240000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9808 -15.6340 0.6 26.0 -76.8 3.7582 20.1 0.4 Sco X-1
256.0966 -37.7070 34.7 20.4 -139.4 0.0434 0.3 9.7 4U 1700-377
256.6098 -36.5419 7.6 19.3 -137.8 0.1960 1.5 11.0 GX 349+2
263.1741 -24.8951 0.0 8.2 -107.4 0.0188 0.1 12.7 GX 1+4
264.5483 -44.4655 10.6 23.0 -163.8 0.1492 1.1 8.4 4U 1735-44
268.3225 -1.4754 3.1 21.0 -6.0 -0.4965 -3.7 3.1 SW J1753.5-0127
270.2506 -25.0032 3.3 3.0 -152.6 0.4497 3.6 4.9 GX 5-1
270.2277 -25.8825 4.2 3.9 -157.8 0.3546 2.8 9.3 GRS 1758-258
273.8524 -14.0136 4.2 8.5 18.0 0.3618 2.7 9.0 GX 17+2
275.8964 -30.2697 32.5 8.9 158.6 0.0452 0.4 6.0 H1820-303
284.9058 -24.8756 15.1 12.5 108.1 0.1125 0.8 7.6 HT1900.1-2455
288.7587 11.0795 9.8 37.3 31.7 0.2766 1.2 8.4 GRS 1915+105
262.9607 -33.8136 191.3 13.9 -145.3 -0.0075 -0.1 1.9 GX 354-0
301.1464 17.2933 2.1 49.0 41.8 3.4234 5.6 ------ UNKNOWN
321.4284 -55.1225 2.8 49.3 148.0 2.5648 4.2 ------ UNKNOWN
289.3968 -78.3087 2.8 56.7 179.0 3.5498 4.2 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
17.240000 72.500600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0011 -15.5879 6.7 26.0 -76.6 -0.2698 -1.7 3.4 Sco X-1
255.7949 -37.9736 0.0 20.8 -139.5 -0.1579 -1.4 11.9 4U 1700-377
256.4846 -36.2802 9.0 19.2 -137.0 0.1469 1.3 8.9 GX 349+2
262.8989 -24.6366 17.6 8.4 -105.2 0.0710 0.7 8.9 GX 1+4
264.9404 -44.5940 6.4 23.0 -164.5 0.2147 1.8 12.1 4U 1735-44
268.3379 -1.6042 9.7 20.9 -6.0 0.1264 1.2 9.3 SW J1753.5-0127
270.4227 -25.2234 5.0 3.2 -156.8 0.2486 2.3 11.5 GX 5-1
270.4767 -25.8858 0.0 3.8 -161.0 -0.1627 -1.5 12.7 GRS 1758-258
274.1665 -14.1305 5.3 8.5 20.3 0.2346 2.2 10.9 GX 17+2
276.0812 -30.2038 0.0 8.9 157.5 -0.2031 -1.8 12.7 H1820-303
285.0415 -24.8957 3.8 12.6 108.1 -0.3331 -3.0 1.5 HT1900.1-2455
288.9259 10.8023 5.3 37.1 32.2 0.3873 2.2 11.4 GRS 1915+105
263.0647 -33.6878 12.5 13.7 -145.3 0.0988 0.9 9.6 GX 354-0
297.3703 -14.0974 1.9 25.7 79.2 0.8952 6.0 ------ UNKNOWN
276.1873 -40.2017 1.0 18.4 172.1 1.3693 11.8 ------ UNKNOWN
271.2166 -4.6781 2.4 17.6 1.9 0.5190 4.9 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
113.300610 298.900600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9978 -15.6249 1.6 36.6 -44.2 7.6798 7.2 1.4 Sco X-1
255.9658 -37.7492 5.4 15.9 -75.0 1.4152 2.1 5.8 4U 1700-377
256.6200 -36.5654 0.0 15.7 -70.3 -0.5939 -0.8 12.3 GX 349+2
263.1589 -24.6396 7.8 19.0 -26.4 0.8500 1.5 10.4 GX 1+4
264.7734 -44.5969 318.5 9.5 -108.8 -0.0215 -0.0 8.9 4U 1735-44
268.3104 -1.3102 7.0 39.5 0.2 -1.3604 -1.7 9.2 SW J1753.5-0127
270.1955 -25.0700 10.4 15.9 -7.5 0.5810 1.1 4.9 GX 5-1
270.3239 -25.8582 7.2 15.1 -8.0 0.8661 1.6 7.0 GRS 1758-258
273.8855 -14.1335 6.4 26.1 7.5 1.0994 1.8 9.1 GX 17+2
276.1107 -30.4057 10.1 9.8 12.3 -0.6448 -1.1 9.9 H1820-303
284.9053 -25.0271 261.8 16.8 40.9 -0.0250 -0.0 9.6 HT1900.1-2455
288.7236 11.0768 4.6 52.6 28.2 -7.6552 -2.5 9.0 GRS 1915+105
262.8084 -33.8181 10.0 12.4 -50.7 0.7107 1.2 9.1 GX 354-0
350.5921 -53.1667 2.6 50.2 143.9 15.5178 4.5 ------ UNKNOWN
155.4907 -76.9853 3.9 57.2 -154.1 11.2562 3.0 ------ UNKNOWN
Plot creation:
Tue Sep 12 16:37:07 EDT 2017