Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
274.4900 -16.1537 0.0235 3.8 124.6 0.0184 8.1 TRIG_00980513
------------------------------------------
Foreground time interval of the image:
0.000 0.008 (delta_t = 0.008 [sec])
Background time interval of the image:
-68.671 -4.172 (delta_t = 64.499 [sec])
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) 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.
- 5) 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.
- 6) 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 0.008000
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 0.008000
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 0.008000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of 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.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Time interval is from 0.000 sec. to 0.008 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.81451 ( -0.408096 0.444118 )
Norm@50keV : 0.112093 ( -0.0343972 0.0332713 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 31.38 using 59 PHA bins.
# Reduced chi-squared = 0.5505 for 57 degrees of freedom
# Null hypothesis probability = 9.976980e-01
Photon flux (15-150 keV) in 0.008 sec: 15.5339 ( -3.74255 3.74446 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.25168e-09 ( -2.4585e-09 2.62437e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.008 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.338192 ( -7.07789 2.53918 )
Epeak [keV] : 39.6415 ( -21.6178 22.639 )
Norm@50keV : 2.56145 ( -3.77738 164209 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 29.14 using 59 PHA bins.
# Reduced chi-squared = 0.5204 for 56 degrees of freedom
# Null hypothesis probability = 9.988619e-01
Photon flux (15-150 keV) in 0.008 sec: 14.9687 ( -3.5941 3.6271 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.52149e-09 ( -1.94646e-09 2.95259e-09 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 0.008 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.98951 ( -14.3963 -4.98951 )
beta : -2.89286 ( -2.671 0.889727 )
Epeak [keV] : 31.5540 ( -7.15271 5.51353 )
Norm@50keV : 4544.26 ( -1044.8 15956.3 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 27.10 using 59 PHA bins.
# Reduced chi-squared = 0.4928 for 55 degrees of freedom
# Null hypothesis probability = 9.994306e-01
Photon flux (15-150 keV) in 0.008 sec: 15.1004 ( -8.1004 -3.701 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.32436e-09 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.60161 (-1.8973 2.40369)
R^2/D10^2 : 9.46406 (-5.52778 11.9176)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 29.37 using 59 PHA bins.
# Reduced chi-squared = 0.5152 for 57 degrees of freedom
# Null hypothesis probability = 9.991055e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.400e-09 5.732e-10
25- 50 3.283e-09 1.342e-09
50-150 1.521e-09 8.614e-10
15-150 6.204e-09 2.485e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 76.2783 (-38.1894 -76.2792)
Norm : 75.3327 (-22.4663 31.7221)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 30.32 using 59 PHA bins.
# Reduced chi-squared = 0.5319 for 57 degrees of freedom
# Null hypothesis probability = 9.985807e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.558e-09 5.842e-10
25- 50 2.536e-09 1.255e-09
50-150 3.465e-09 2.916e-09
15-150 7.559e-09 4.419e-09
Double BB
#Fit statistic : Chi-Squared = 27.44 using 59 PHA bins.
# Reduced chi-squared = 0.5146 for 55 degrees of freedom
# Reduced chi-squared = 0.5034 for 55 degrees of freedom
# Reduced chi-squared = 0.5012 for 55 degrees of freedom
# Reduced chi-squared = 0.5000 for 55 degrees of freedom
# Reduced chi-squared = 0.4993 for 55 degrees of freedom
# Reduced chi-squared = 0.4989 for 55 degrees of freedom
# Null hypothesis probability = 9.989318e-01
# Null hypothesis probability = 9.992216e-01
# Null hypothesis probability = 9.992701e-01
# Null hypothesis probability = 9.992958e-01
# Null hypothesis probability = 9.993094e-01
# Null hypothesis probability = 9.993166e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.562e-09 1.177e-09
25- 50 3.213e-09 2.668e-09
50-150 3.270e-09 2.551e-09
15-150 8.046e-09 6.416e-09
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 0.008 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.81451 ( -0.408096 0.444118 )
Norm@50keV : 0.112093 ( -0.0343972 0.0332713 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 31.38 using 59 PHA bins.
# Reduced chi-squared = 0.5505 for 57 degrees of freedom
# Null hypothesis probability = 9.976980e-01
Photon flux (15-150 keV) in 0.008 sec: 15.5339 ( -3.74255 3.74446 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.25168e-09 ( -2.4585e-09 2.62437e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.008 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.338192 ( -7.07789 2.53918 )
Epeak [keV] : 39.6415 ( -21.6178 22.6439 )
Norm@50keV : 2.56145 ( -3.77738 164209 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 29.14 using 59 PHA bins.
# Reduced chi-squared = 0.5204 for 56 degrees of freedom
# Null hypothesis probability = 9.988619e-01
Photon flux (15-150 keV) in 0.008 sec: 14.9687 ( -3.5941 3.6271 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.52149e-09 ( -1.94646e-09 2.95259e-09 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 0.008 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.98951 ( -4.99395 -4.98951 )
beta : -2.89286 ( -2.671 0.889727 )
Epeak [keV] : 31.5540 ( -7.15271 5.51353 )
Norm@50keV : 4544.26 ( -1044.8 15956.3 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 27.10 using 59 PHA bins.
# Reduced chi-squared = 0.4928 for 55 degrees of freedom
# Null hypothesis probability = 9.994306e-01
Photon flux (15-150 keV) in 0.008 sec: 15.1004 ( -8.1004 -3.701 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.32436e-09 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.60161 (-1.8973 2.40369)
R^2/D10^2 : 9.46406 (-5.52778 11.9176)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 29.37 using 59 PHA bins.
# Reduced chi-squared = 0.5152 for 57 degrees of freedom
# Null hypothesis probability = 9.991055e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.400e-09 5.828e-10
25- 50 3.283e-09 1.283e-09
50-150 1.521e-09 8.746e-10
15-150 6.204e-09 2.494e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 76.2783 (-38.1894 -76.2792)
Norm : 75.3327 (-22.4663 31.7221)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 30.32 using 59 PHA bins.
# Reduced chi-squared = 0.5319 for 57 degrees of freedom
# Null hypothesis probability = 9.985807e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.558e-09 5.862e-10
25- 50 2.536e-09 1.334e-09
50-150 3.465e-09 2.868e-09
15-150 7.559e-09 4.686e-09
Double BB
#Fit statistic : Chi-Squared = 27.44 using 59 PHA bins.
# Reduced chi-squared = 0.5146 for 55 degrees of freedom
# Reduced chi-squared = 0.5034 for 55 degrees of freedom
# Reduced chi-squared = 0.5012 for 55 degrees of freedom
# Reduced chi-squared = 0.5000 for 55 degrees of freedom
# Reduced chi-squared = 0.4993 for 55 degrees of freedom
# Reduced chi-squared = 0.4989 for 55 degrees of freedom
# Null hypothesis probability = 9.989318e-01
# Null hypothesis probability = 9.992216e-01
# Null hypothesis probability = 9.992701e-01
# Null hypothesis probability = 9.992958e-01
# Null hypothesis probability = 9.993094e-01
# Null hypothesis probability = 9.993166e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.562e-09 1.230e-09
25- 50 3.213e-09 2.988e-09
50-150 3.270e-09 2.772e-09
15-150 8.046e-09 5.720e-09
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: 1.81451 ( -0.408096 0.444118 )
Norm@50keV : 0.112093 ( -0.0343972 0.0332713 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 31.38 using 59 PHA bins.
# Reduced chi-squared = 0.5505 for 57 degrees of freedom
# Null hypothesis probability = 9.976980e-01
Photon flux (15-150 keV) in 0.008 sec: 15.5339 ( -3.74255 3.74446 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.25168e-09 ( -2.4585e-09 2.62437e-09 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.338192 ( -7.07789 2.53918 )
Epeak [keV] : 39.6415 ( -21.6178 22.6434 )
Norm@50keV : 2.56145 ( -3.77738 164209 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 29.14 using 59 PHA bins.
# Reduced chi-squared = 0.5204 for 56 degrees of freedom
# Null hypothesis probability = 9.988619e-01
Photon flux (15-150 keV) in 0.008 sec: 14.9687 ( -3.5941 3.6271 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.52149e-09 ( -1.94646e-09 2.95259e-09 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.98951 ( -5.8789 -4.98951 )
beta : -2.89286 ( -2.671 0.889727 )
Epeak [keV] : 31.5540 ( -7.15271 5.51353 )
Norm@50keV : 4544.26 ( -1044.8 15956.3 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 27.10 using 59 PHA bins.
# Reduced chi-squared = 0.4928 for 55 degrees of freedom
# Null hypothesis probability = 9.994306e-01
Photon flux (15-150 keV) in 0.008 sec: 15.1004 ( -8.1004 -3.701 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.32436e-09 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 2.34e-09
S(50-100 keV) = 2.66e-09
T90 vs. Hardness ratio plot
T90 = 0.00799989700317383 sec.
Hardness ratio (energy fluence ratio) = 1.13675
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.37433
Count Ratio (50-100 keV) / (15-25 keV) = 0.400506
Mask shadow pattern
IMX = -3.730330395700655E-02, IMY = -5.403735066747732E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.008000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.008000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.008000
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:
-68.671400 -4.172000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9727 -15.6553 0.8 25.7 -103.0 2.2974 14.6 1.0 Sco X-1
254.6238 35.4633 4.1 51.7 -23.0 0.9464 2.8 10.9 Her X-1
256.1391 -37.8649 5.7 27.7 -158.7 0.2886 2.0 7.3 4U 1700-377
256.4548 -36.3354 5.1 26.3 -157.3 0.3027 2.3 5.3 GX 349+2
263.1897 -24.6216 209.1 13.4 -150.9 -0.0065 -0.1 12.3 GX 1+4
264.5767 -44.5823 6.5 31.4 -176.0 0.2433 1.8 10.7 4U 1735-44
268.2764 -1.5941 10.0 12.6 -20.4 -0.1271 -1.2 10.1 SW J1753.5-0127
270.3456 -25.1293 2.3 11.4 179.8 0.5551 5.2 4.5 GX 5-1
270.1826 -25.6803 5.5 12.0 -179.7 0.2557 2.3 7.5 GRS 1758-258
273.9925 -14.1856 4.0 2.5 94.9 0.3164 2.9 9.0 GX 17+2
275.8440 -30.3573 4.0 17.1 161.7 0.3562 2.9 4.2 H1820-303
285.1930 -25.0655 0.0 17.1 127.9 -0.1554 -1.2 12.2 HT1900.1-2455
288.8835 10.9180 6.1 30.1 30.3 0.2976 1.9 5.3 GRS 1915+105
263.1307 -34.0068 0.0 21.6 -166.3 0.3026 2.7 12.5 GX 354-0
303.3011 17.4199 2.5 44.2 40.7 1.4169 4.6 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 0.008000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.1574 -15.5418 0.0 25.5 -102.8 -0.0056 -1.7 11.9 Sco X-1
254.4616 35.3893 5.3 51.7 -23.2 0.0155 2.2 2.8 Her X-1
256.0435 -37.7031 11.6 27.6 -158.4 -0.0023 -1.0 8.9 4U 1700-377
256.5485 -36.3670 8.4 26.3 -157.5 0.0032 1.4 6.4 GX 349+2
263.1480 -24.9108 5.6 13.6 -151.5 -0.0046 -2.1 12.5 GX 1+4
264.8904 -44.6194 0.0 31.4 -176.4 -0.0015 -0.6 12.0 4U 1735-44
268.4977 -1.6152 0.0 12.5 -19.4 0.0014 0.6 12.5 SW J1753.5-0127
270.1057 -25.2132 0.0 11.5 -179.1 0.0055 2.3 12.6 GX 5-1
270.3140 -25.8908 7.8 12.2 179.6 -0.0036 -1.5 8.9 GRS 1758-258
274.0010 -14.0261 2700.0 2.4 91.2 -0.0000 -0.0 0.7 GX 17+2
275.7696 -30.2378 4.5 16.9 161.8 0.0061 2.6 11.2 H1820-303
285.0148 -25.0664 4.9 17.0 128.2 0.0055 2.3 8.8 HT1900.1-2455
288.8864 11.0794 4.5 30.2 30.2 0.0075 2.6 9.6 GRS 1915+105
262.8209 -33.9453 6.2 21.7 -165.6 0.0042 1.9 10.7 GX 354-0
293.7056 35.4486 2.8 53.5 17.1 0.0467 4.1 ------ UNKNOWN
274.4902 -16.1536 1.4 3.8 124.6 0.0183 8.0 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
62.328600 185.198000
185.828000 321.148000
321.828000 322.488000
323.828000 719.628000
720.828000 764.068000
764.828000 845.528600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9941 -15.6490 0.5 28.4 -138.7 25.3717 25.5 1.0 Sco X-1
256.1037 -37.8529 6.0 27.1 167.7 1.8297 1.9 5.6 4U 1700-377
256.3595 -36.5159 19.9 26.0 169.3 0.4968 0.6 6.7 GX 349+2
262.8085 -24.7626 4.9 13.9 -175.6 1.8163 2.4 11.0 GX 1+4
264.6055 -44.5577 7.9 29.6 148.8 1.8479 1.5 8.7 4U 1735-44
268.4535 -1.4754 6.4 15.8 -68.2 -1.5841 -1.8 5.3 SW J1753.5-0127
270.3500 -25.0932 2.5 9.7 157.3 3.5179 4.5 3.7 GX 5-1
270.3622 -25.7858 3.1 10.4 155.6 2.8959 3.7 4.1 GRS 1758-258
274.0305 -14.1311 3.8 2.1 -58.3 2.5464 3.0 5.9 GX 17+2
275.9297 -30.3238 3.5 14.2 129.4 2.7767 3.3 2.6 H1820-303
285.2663 -24.9116 0.0 13.3 87.2 -0.7178 -0.8 12.5 HT1900.1-2455
288.5880 10.9341 0.0 30.5 -17.4 -0.1009 -0.1 12.4 GRS 1915+105
299.4333 35.2440 5.2 56.6 -21.2 7.1425 2.2 8.1 Cyg X-1
263.0321 -33.6754 3.7 20.3 162.9 2.4006 3.1 9.8 GX 354-0
321.8649 -8.0194 3.4 46.9 40.3 8.1658 3.4 ------ UNKNOWN
323.1155 12.0958 3.6 55.8 17.0 12.9315 3.2 ------ UNKNOWN
215.1162 -27.8881 3.2 55.8 -158.6 13.5572 3.6 ------ UNKNOWN
233.7973 1.1865 2.5 43.8 -116.0 15.9808 4.6 ------ UNKNOWN
269.3600 31.5163 3.7 47.9 -51.4 11.4446 3.1 ------ UNKNOWN
Plot creation:
Fri Jul 3 09:48:49 EDT 2020