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
302.3301 -36.8782 0.0104 11.0722 165.6238 8.1671786 18.568 TRIG_00871316
Foreground time interval of the image:
-109.304 17.685 (delta_t = 126.989 [sec])
Background time interval of the image:
-130.315 -109.304 (delta_t = 21.011 [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 -109.304 sec. to 129.808 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.02269 ( -0.054072 0.0544884 )
Norm@50keV : 4.44827E-03 ( -0.000119611 0.000118999 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.30 using 59 PHA bins.
# Reduced chi-squared = 1.163 for 57 degrees of freedom
# Null hypothesis probability = 1.868445e-01
Photon flux (15-150 keV) in 239.1 sec: 0.674351 ( -0.019752 0.019883 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.8229e-06 ( -2.52729e-07 2.52903e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -109.304 sec. to 129.808 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.90776 ( -0.2279 0.215776 )
Epeak [keV] : 39.2291 ( -34.736 -39.2293 )
Norm@50keV : 5.07392E-03 ( -0.00107932 0.00147684 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.50 using 59 PHA bins.
# Reduced chi-squared = 1.170 for 56 degrees of freedom
# Null hypothesis probability = 1.803828e-01
Photon flux (15-150 keV) in 239.1 sec: 0.666671 ( -0.024199 0.023043 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.70598e-06 ( -3.33174e-07 3.31847e-07 ) ergs/cm2
Band function
Time interval is from -109.304 sec. to 129.808 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] : 11.8881 ( )
R^2/D10^2 : 0.145263 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 382.33 using 59 PHA bins.
# Reduced chi-squared = 6.7075 for 57 degrees of freedom
# Null hypothesis probability = 1.061046e-49
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.037e-06 5.428e-08
25- 50 3.229e-06 1.028e-07
50-150 2.726e-06 1.566e-07
15-150 6.992e-06 1.793e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 76.5427 (-6.54183 7.56813)
Norm : 3.04725 (-0.146656 0.156625)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 82.29 using 59 PHA bins.
# Reduced chi-squared = 1.444 for 57 degrees of freedom
# Null hypothesis probability = 1.584923e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.885e-06 8.213e-08
25- 50 3.069e-06 8.608e-08
50-150 4.203e-06 2.343e-07
15-150 9.157e-06 2.558e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.64223 (-0.649452 0.675774)
R1^2/D10^2 : 1.00707 (-0.293788 0.47695)
kT2 [keV] : 22.6821 (-2.54967 3.48339)
R2^2/D10^2 : 8.91412E-03 (-0.00375666 0.00551276)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 87.66 using 59 PHA bins.
# Reduced chi-squared = 1.594 for 55 degrees of freedom
# Null hypothesis probability = 3.355125e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.811e-06 1.681e-07
25- 50 3.065e-06 1.578e-07
50-150 4.411e-06 4.519e-07
15-150 9.288e-06 5.930e-07
Peak spectrum fit
Power-law model
Time interval is from 25.032 sec. to 26.032 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.85221 ( -0.123132 0.126398 )
Norm@50keV : 2.59709E-02 ( -0.00204714 0.00202081 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 33.48 using 59 PHA bins.
# Reduced chi-squared = 0.5873 for 57 degrees of freedom
# Null hypothesis probability = 9.945364e-01
Photon flux (15-150 keV) in 1 sec: 3.65397 ( -0.25182 0.25199 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.38831e-07 ( -1.87716e-08 1.89613e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 25.032 sec. to 26.032 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.47332 ( -0.548919 0.451737 )
Epeak [keV] : 62.2446 ( -17.0483 -62.2447 )
Norm@50keV : 4.20129E-02 ( -0.0175822 0.0416273 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 31.73 using 59 PHA bins.
# Reduced chi-squared = 0.5667 for 56 degrees of freedom
# Null hypothesis probability = 9.963205e-01
Photon flux (15-150 keV) in 1 sec: 3.59661 ( -0.26263 0.26219 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from 25.032 sec. to 26.032 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] : 11.2635 (-0.930133 1.01904)
R^2/D10^2 : 1.09257 (-0.303451 0.41814)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 78.46 using 59 PHA bins.
# Reduced chi-squared = 1.376 for 57 degrees of freedom
# Null hypothesis probability = 3.126793e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.909e-08 3.555e-09
25- 50 8.476e-08 6.560e-09
50-150 6.184e-08 9.945e-09
15-150 1.757e-07 1.490e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 90.3681 (-19.5458 29.41)
Norm : 16.5189 (-1.63042 1.86778)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 31.99 using 59 PHA bins.
# Reduced chi-squared = 0.5612 for 57 degrees of freedom
# Null hypothesis probability = 9.970033e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.311e-08 4.605e-09
25- 50 7.297e-08 5.720e-09
50-150 1.114e-07 3.903e-08
15-150 2.275e-07 3.605e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.09858 (-1.30546 1.49483)
R1^2/D10^2 : 7.32886 (-3.7605 10.2253)
kT2 [keV] : 20.8751 (-4.37164 8.4275)
R2^2/D10^2 : 7.84558E-02 (-0.0561812 0.0685353)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 32.87 using 59 PHA bins.
# Reduced chi-squared = 0.5977 for 55 degrees of freedom
# Null hypothesis probability = 9.922382e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.354e-08 1.333e-08
25- 50 7.145e-08 1.620e-08
50-150 1.114e-07 4.370e-08
15-150 2.264e-07 7.388e-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: 1.65843 ( -0.072157 0.072584 )
Norm@50keV : 3.66405E-03 ( -0.000141372 0.000140967 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.82 using 59 PHA bins.
# Reduced chi-squared = 1.225 for 57 degrees of freedom
# Null hypothesis probability = 1.185935e-01
Photon flux (15-150 keV) in 127 sec: 0.479774 ( -0.0188099 0.0188574 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.3242e-06 ( -1.77079e-07 1.77908e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.41672 ( -0.319047 0.2701 )
Epeak [keV] : 118.205 ( -41.4804 -118.23 )
Norm@50keV : 4.85245E-03 ( -0.00125875 0.00213325 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.91 using 59 PHA bins.
# Reduced chi-squared = 1.213 for 56 degrees of freedom
# Null hypothesis probability = 1.321155e-01
Photon flux (15-150 keV) in 127 sec: 0.471530 ( -0.021209 0.021212 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.22219e-06 ( -2.18986e-07 2.17373e-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) = 2.96e-06
S(50-100 keV) = 2.94e-06
T90 vs. Hardness ratio plot
T90 = 138.424000024796 sec.
Hardness ratio (energy fluence ratio) = 0.993243
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.961638
Count Ratio (50-100 keV) / (15-25 keV) = 0.493066
Mask shadow pattern
IMX = -1.895602209165389E-01, IMY = -4.858698402020623E-02
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:
-130.315400 -109.304000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
256.1609 -37.9476 7.0 34.9 -105.0 0.2094 1.6 10.3 4U 1700-377
256.2557 -36.3765 10.1 34.7 -102.3 -0.1471 -1.1 9.1 GX 349+2
262.8461 -24.8759 42.9 29.8 -80.0 0.0278 0.3 11.8 GX 1+4
264.5990 -44.2962 9.0 30.4 -119.4 -0.1150 -1.3 11.1 4U 1735-44
268.4987 -1.5291 3.5 36.8 -37.3 0.3044 3.3 9.1 SW J1753.5-0127
270.2273 -25.0574 5.4 23.2 -77.4 0.1658 2.2 3.4 GX 5-1
270.1941 -25.6791 2.9 23.1 -79.0 0.3271 4.2 7.0 GRS 1758-258
274.1469 -13.8733 0.0 24.3 -48.1 -0.0455 -0.7 12.8 GX 17+2
275.7491 -30.3422 7.6 18.0 -91.7 -0.1138 -1.5 9.2 H1820-303
285.1399 -25.0507 16.3 10.0 -66.9 -0.0450 -0.7 9.6 HT1900.1-2455
288.7867 10.9790 6.0 38.8 1.8 0.1877 1.9 2.1 GRS 1915+105
263.0129 -33.8213 5.0 29.0 -98.2 0.2180 2.3 1.4 GX 354-0
299.5338 -80.5626 2.2 53.4 -167.6 1.0315 5.1 ------ UNKNOWN
270.3466 5.1105 2.0 40.7 -28.2 0.5508 5.9 ------ UNKNOWN
263.6340 -3.4724 1.9 38.9 -45.0 0.6495 6.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-109.304000 17.684600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
256.1604 -37.9511 6.5 34.9 -105.0 -1.5070 -1.8 10.4 4U 1700-377
256.2548 -36.3833 13.5 34.7 -102.3 0.7233 0.9 9.0 GX 349+2
263.1725 -24.7690 5.7 29.5 -79.7 1.3178 2.0 9.0 GX 1+4
264.6771 -44.5789 9.3 30.4 -120.0 0.7083 1.2 8.2 4U 1735-44
268.4759 -1.5127 3.4 36.8 -37.3 -2.1137 -3.4 7.4 SW J1753.5-0127
270.1195 -25.1138 7.4 23.3 -77.6 -0.8018 -1.6 9.2 GX 5-1
270.2172 -25.6641 3.8 23.1 -79.0 -1.6655 -3.2 6.6 GRS 1758-258
274.1059 -13.9499 4.2 24.3 -48.3 1.2791 2.8 7.8 GX 17+2
275.8757 -30.3390 4.6 17.9 -91.8 1.1974 2.5 3.1 H1820-303
285.1287 -24.9361 13.0 10.0 -66.2 0.3843 0.9 5.1 HT1900.1-2455
288.6800 10.9292 7.1 38.8 1.6 1.0494 1.6 7.0 GRS 1915+105
262.9544 -33.8937 7.0 29.1 -98.4 -1.0475 -1.6 3.9 GX 354-0
317.7715 -49.4572 2.0 27.9 162.0 2.8838 5.7 ------ UNKNOWN
302.3301 -36.8782 0.6 11.1 165.6 8.1669 18.6 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
52.884600 962.844000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
255.8688 -37.6679 0.0 36.6 -99.0 4.1619 2.4 12.0 4U 1700-377
256.2181 -36.4636 10.9 36.6 -97.0 -1.8735 -1.1 10.8 GX 349+2
263.1492 -24.6435 69.4 35.5 -74.5 -0.2420 -0.2 9.8 GX 1+4
264.9016 -44.4207 16.2 29.1 -110.1 0.6936 0.7 7.0 4U 1735-44
268.2265 -1.4856 34.8 47.4 -43.0 0.7135 0.3 8.7 SW J1753.5-0127
270.2494 -25.0640 1.9 29.8 -69.1 5.9300 6.1 2.1 GX 5-1
270.1596 -25.8221 7.8 29.5 -70.5 1.4227 1.5 9.1 GRS 1758-258
274.0449 -14.0917 4.9 34.0 -48.7 2.2972 2.3 4.0 GX 17+2
275.9499 -30.5097 11.9 22.8 -74.8 0.8117 1.0 8.7 H1820-303
285.1456 -25.0671 8.4 18.8 -49.3 -1.0879 -1.4 10.6 HT1900.1-2455
288.8288 10.9485 3.7 49.5 -10.9 4.5525 3.1 1.8 GRS 1915+105
262.9484 -33.7243 4.4 32.1 -89.6 3.0614 2.6 6.9 GX 354-0
334.2705 -8.6707 4.5 40.4 60.5 7.9028 2.6 ------ UNKNOWN
302.3189 -36.8935 1.7 0.0 -95.5 4.8455 6.7 ------ UNKNOWN
151.0936 -85.0181 2.7 57.5 -170.5 17.9819 4.4 ------ UNKNOWN
229.8507 -59.3939 3.6 50.3 -134.2 11.2915 3.2 ------ UNKNOWN
Plot creation:
Mon Dec 17 21:09:35 EST 2018