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
265.8492 -46.1251 0.0123 17.1708 -16.1199 1.3944658 15.596 TRIG_00685245
Foreground time interval of the image:
-9.096 44.005 (delta_t = 53.101 [sec])
Background time interval of the image:
-218.995 -9.096 (delta_t = 209.899 [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 3.072000
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 3.072000
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 3.072000
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 -9.096 sec. to 336.016 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.12205 ( -0.222873 0.239003 )
Norm@50keV : 4.75003E-04 ( -7.00686e-05 6.74977e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.92 using 59 PHA bins.
# Reduced chi-squared = 0.9810 for 57 degrees of freedom
# Null hypothesis probability = 5.157344e-01
Photon flux (15-150 keV) in 345.1 sec: 7.55604E-02 ( -0.008128 0.008143 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.52674e-06 ( -1.95198e-07 1.99555e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -9.096 sec. to 336.016 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.37555 ( -0.421146 0.0164401 )
Epeak [keV] : 146.443 ( )
Norm@50keV : 3.55852E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.51 using 59 PHA bins.
# Reduced chi-squared = 0.9912 for 56 degrees of freedom
# Null hypothesis probability = 4.934430e-01
Photon flux (15-150 keV) in 345.1 sec: 7.08647E-02 ( -0.0168517 0.0127907 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.3635e-06 ( -5.27503e-07 3.66137e-07 ) ergs/cm2
Band function
Time interval is from -9.096 sec. to 336.016 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.78849 ( 8.78849 8.78849 )
beta : -2.12205 ( -0.238533 0.222686 )
Epeak [keV] : 5.02587 ( -5.02587 -5.02587 )
Norm@50keV : 6.45595E-02 ( -0.00952322 0.00917398 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.92 using 59 PHA bins.
# Reduced chi-squared = 1.017 for 55 degrees of freedom
# Null hypothesis probability = 4.401757e-01
Photon flux (15-150 keV) in 345.1 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] : 9.62880 (-1.49761 1.82739)
R^2/D10^2 : 3.72856E-02 (-0.0179616 0.0349335)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 91.35 using 59 PHA bins.
# Reduced chi-squared = 1.603 for 57 degrees of freedom
# Null hypothesis probability = 2.616621e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.396e-07 4.900e-08
25- 50 5.641e-07 9.180e-08
50-150 2.636e-07 7.513e-08
15-150 1.067e-06 1.748e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 61.8600 (-18.4706 31.5854)
Norm : 0.379896 (-0.069487 0.087531)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.69 using 59 PHA bins.
# Reduced chi-squared = 1.065 for 57 degrees of freedom
# Null hypothesis probability = 3.444485e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.311e-07 4.949e-08
25- 50 5.086e-07 5.660e-08
50-150 5.934e-07 1.848e-07
15-150 1.433e-06 1.920e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.97202 (-1.09308 1.34427)
R1^2/D10^2 : 1.12418 (-0.822626 5.05542)
kT2 [keV] : 17.9291 (-4.0329 6.07891)
R2^2/D10^2 : 2.85986E-03 (-0.00191112 0.00469644)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.77 using 59 PHA bins.
# Reduced chi-squared = 0.9957 for 55 degrees of freedom
# Null hypothesis probability = 4.835264e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.046e-07 1.932e-07
25- 50 4.139e-07 1.392e-07
50-150 6.850e-07 3.148e-07
15-150 1.504e-06 5.235e-07
Peak spectrum fit
Power-law model
Time interval is from 98.784 sec. to 99.784 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.895164 ( -1.07696 0.784762 )
Norm@50keV : 3.24353E-03 ( -0.00155097 0.00115456 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.42 using 59 PHA bins.
# Reduced chi-squared = 0.8144 for 57 degrees of freedom
# Null hypothesis probability = 8.403919e-01
Photon flux (15-150 keV) in 1 sec: 0.371987 ( -0.371987 0.143175 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.6488e-08 ( -1.21234e-08 1.20386e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 98.784 sec. to 99.784 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.943898 ( -1.14874 0.737217 )
Epeak [keV] : 9999.36 ( -9999.36 -9999.36 )
Norm@50keV : 3.30626E-03 ( -0.00159832 0.00394005 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.46 using 59 PHA bins.
# Reduced chi-squared = 0.8296 for 56 degrees of freedom
# Null hypothesis probability = 8.145607e-01
Photon flux (15-150 keV) in 1 sec: 0.142537 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.04263e-08 ( 0 0 ) ergs/cm2
Band function
Time interval is from 98.784 sec. to 99.784 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -9.99999 ( 9.99999 9.99999 )
beta : -0.894604 ( -0.786003 1.0762 )
Epeak [keV] : 13.0494 ( -13.0494 -13.0494 )
Norm@50keV : 0.440777 ( -0.210725 0.156996 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.42 using 59 PHA bins.
# Reduced chi-squared = 0.8440 for 55 degrees of freedom
# Null hypothesis probability = 7.882045e-01
Photon flux (15-150 keV) in 1 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] : 46.5601 (-22.9637 -46.8292)
R^2/D10^2 : 1.58964E-03 (-0.00156213 0.00819096)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.79 using 59 PHA bins.
# Reduced chi-squared = 0.8736 for 57 degrees of freedom
# Null hypothesis probability = 7.397057e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.734e-09 3.105e-09
25- 50 6.371e-09 4.390e-09
50-150 1.022e-09 9.325e-10
15-150 1.213e-08 8.100e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.361 (-108.519 -199.363)
Norm : 1.63823 (-0.544704 0.544642)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.51 using 59 PHA bins.
# Reduced chi-squared = 0.8686 for 57 degrees of freedom
# Null hypothesis probability = 7.490846e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.079e-09 2.616e-09
25- 50 7.847e-09 5.010e-09
50-150 1.721e-08 1.080e-08
15-150 2.914e-08 1.739e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.04796 (-1.9768 2.9291)
R1^2/D10^2 : 2.01521 (-1.77833 18.3932)
kT2 [keV] : 88.0687 (-56.1522 -88.6902)
R2^2/D10^2 : 3.98454E-04 (-0.00032019 0.00334578)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 41.02 using 59 PHA bins.
# Reduced chi-squared = 0.7459 for 55 degrees of freedom
# Null hypothesis probability = 9.193483e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.302e-09 3.265e-09
25- 50 5.078e-09 3.198e-09
50-150 3.101e-08 2.763e-08
15-150 4.139e-08 2.916e-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: 1.67563 ( -0.171833 0.174962 )
Norm@50keV : 1.53775E-03 ( -0.000162074 0.000160508 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.15 using 59 PHA bins.
# Reduced chi-squared = 0.8798 for 57 degrees of freedom
# Null hypothesis probability = 7.277966e-01
Photon flux (15-150 keV) in 53.1 sec: 0.202522 ( -0.0203186 0.0203556 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.57572e-07 ( -8.37005e-08 8.47205e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.834869 ( -0.938939 0.767736 )
Epeak [keV] : 64.1922 ( -14.4575 149.03 )
Norm@50keV : 4.31279E-03 ( -0.0025972 0.00917743 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.63 using 59 PHA bins.
# Reduced chi-squared = 0.8327 for 56 degrees of freedom
# Null hypothesis probability = 8.095777e-01
Photon flux (15-150 keV) in 53.1 sec: 0.194664 ( -0.021603 0.021558 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.02306e-07 ( -9.47623e-08 9.80332e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.637718 ( -0.715856 5.58807 )
beta : -2.30527 ( 2.30666 0.62996 )
Epeak [keV] : 57.9125 ( -31.2857 88.0588 )
Norm@50keV : 5.67727E-03 ( -0.00573025 47.2542 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.26 using 59 PHA bins.
# Reduced chi-squared = 0.8410 for 55 degrees of freedom
# Null hypothesis probability = 7.933071e-01
Photon flux (15-150 keV) in 53.1 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) = 4.76e-07
S(50-100 keV) = 4.35e-07
T90 vs. Hardness ratio plot
T90 = 260.527999937534 sec.
Hardness ratio (energy fluence ratio) = 0.913866
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.777857
Count Ratio (50-100 keV) / (15-25 keV) = 0.508982
Mask shadow pattern
IMX = 2.968448034931285E-01, IMY = 8.579179527188278E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 3.072000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 3.072000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 3.072000
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:
-218.995400 -9.096000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9642 -15.6461 0.5 23.8 101.8 7.2571 23.7 0.9 Sco X-1
255.9707 -37.8256 2.2 12.4 24.3 1.1151 5.1 1.3 4U 1700-377
256.2185 -36.4583 5.1 11.4 28.7 0.5077 2.3 10.7 GX 349+2
263.0220 -24.7444 5.3 5.2 125.9 0.4924 2.2 0.7 GX 1+4
264.5652 -44.5661 10.6 15.7 -12.6 0.2423 1.1 10.3 4U 1735-44
268.2169 -1.4813 8.0 27.5 166.4 -0.3897 -1.4 9.2 SW J1753.5-0127
270.3282 -25.1218 2.9 5.2 -154.5 0.9431 4.1 3.5 GX 5-1
270.3003 -25.7156 3.9 4.7 -149.9 0.7888 3.5 1.7 GRS 1758-258
274.0941 -14.1281 5.1 16.4 -170.3 0.5154 2.3 7.5 GX 17+2
275.9788 -30.3926 4.4 8.4 -95.3 0.5682 2.7 3.2 H1820-303
284.8829 -24.9296 7.9 16.9 -116.9 -0.3508 -1.5 8.3 HT1900.1-2455
288.7872 10.9469 5.6 45.4 -165.8 0.9732 2.0 0.7 GRS 1915+105
263.1211 -33.9741 3.5 5.8 11.0 0.7053 3.3 10.6 GX 354-0
244.3122 6.3926 2.2 41.3 128.0 4.0385 5.2 ------ UNKNOWN
210.0151 -42.4121 3.5 46.9 40.0 2.3624 3.3 ------ UNKNOWN
255.3113 -41.6786 1.9 15.6 14.9 1.3344 6.0 ------ UNKNOWN
282.4033 26.1738 2.7 57.2 179.6 5.6398 4.3 ------ UNKNOWN
282.7649 -66.7430 3.7 39.1 -27.6 1.0327 3.1 ------ UNKNOWN
308.6426 -40.8383 4.7 36.2 -76.9 1.5031 2.4 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-9.096000 44.004600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.1106 -15.5466 4.7 23.8 102.2 0.3004 2.4 9.4 Sco X-1
255.9957 -38.0106 8.4 12.5 23.6 0.1283 1.4 10.0 4U 1700-377
256.5591 -36.5694 8.3 11.2 27.4 0.1274 1.4 10.6 GX 349+2
263.1536 -24.8243 4.8 5.1 126.5 -0.2137 -2.4 9.2 GX 1+4
264.7618 -44.5245 3.0 15.6 -13.1 0.3399 3.9 4.5 4U 1735-44
268.2407 -1.4109 3.7 27.6 166.4 0.3222 3.1 8.0 SW J1753.5-0127
270.1803 -24.9858 11.9 5.2 -156.6 -0.0848 -1.0 8.0 GX 5-1
270.0977 -25.8465 0.0 4.5 -150.4 0.2253 2.5 12.7 GRS 1758-258
274.1262 -14.1618 3.8 16.4 -170.2 -0.2671 -3.0 10.3 GX 17+2
276.0816 -30.4500 23.8 8.5 -95.0 -0.0432 -0.5 9.5 H1820-303
284.8943 -24.7693 10.7 17.0 -117.4 0.1050 1.1 11.9 HT1900.1-2455
288.6728 10.8511 4.8 45.2 -165.9 -0.3872 -2.4 9.3 GRS 1915+105
262.8541 -33.8369 19.6 5.8 13.6 0.0528 0.6 6.7 GX 354-0
265.8492 -46.1251 0.7 17.2 -16.1 1.3945 15.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
83.804590 962.944700
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.4209 -60.6848 5.4 53.4 11.6 -4.7441 -2.1 4.8 Cen X-3
186.6585 -62.7493 1.1 45.5 13.3 14.9662 10.5 1.3 GX 301-2
244.9770 -15.6399 0.5 35.1 117.7 37.0644 21.2 0.1 Sco X-1
255.9732 -37.8497 0.9 11.0 109.5 9.3526 12.4 0.7 4U 1700-377
256.3613 -36.4399 7.0 12.0 114.9 1.2254 1.6 3.7 GX 349+2
263.0159 -24.7551 5.5 21.5 147.4 1.6612 2.1 0.7 GX 1+4
264.4905 -44.4749 73.4 1.9 125.2 0.1359 0.2 10.9 4U 1735-44
268.2291 -1.4593 7.0 44.7 157.7 -3.3393 -1.6 8.3 SW J1753.5-0127
270.3300 -25.1021 3.4 21.3 165.7 2.6227 3.4 2.8 GX 5-1
270.3040 -25.6837 4.6 20.8 165.8 1.9602 2.6 3.6 GRS 1758-258
273.9812 -14.0322 2.7 32.8 169.1 3.8566 4.2 1.5 GX 17+2
275.8726 -30.3636 7.3 17.6 -175.7 1.1032 1.6 2.7 H1820-303
285.0349 -24.9134 119.4 26.2 -163.1 0.0731 0.1 0.4 HT1900.1-2455
263.0100 -33.8224 2.8 12.5 143.6 2.9308 4.2 1.3 GX 354-0
245.0789 -14.3388 3.3 36.2 118.8 5.9802 3.5 ------ UNKNOWN
166.7516 -62.7486 4.0 53.8 8.3 6.6986 2.9 ------ UNKNOWN
305.5039 0.1691 4.7 57.9 -156.8 13.0790 2.5 ------ UNKNOWN
Plot creation:
Tue Jun 21 10:25:13 EDT 2016