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
274.4897 -16.1642 0.0348 12.7 59.1 0.0109 5.5 TRIG_00972614
------------------------------------------
Foreground time interval of the image:
0.000 0.016 (delta_t = 0.016 [sec])
Background time interval of the image:
-239.648 -198.448 (delta_t = 41.200 [sec])
-197.648 -1.648 (delta_t = 196.000 [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 0.016000
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 0.016000
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 0.016000
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 0.016 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 4.29291 ( -0.644427 0.875103 )
Norm@50keV : 3.31043E-03 ( -0.00208508 0.00209223 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.94 using 59 PHA bins.
# Reduced chi-squared = 1.016 for 57 degrees of freedom
# Null hypothesis probability = 4.403954e-01
Photon flux (15-150 keV) in 0.016 sec: 2.64764 ( -1.14538 1.13783 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.45518e-09 ( -6.07971e-10 6.07626e-10 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.016 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 5.64974E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.57 using 59 PHA bins.
# Reduced chi-squared = 1.242 for 56 degrees of freedom
# Null hypothesis probability = 1.051577e-01
Photon flux (15-150 keV) in 0.016 sec: 3.57698 ( -1.44974 1.4437 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.05651e-09 ( -4.33728e-10 8.49616e-10 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 0.016 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.33762 ( 8.33762 8.33762 )
beta : -4.29301 ( -0.873759 0.644589 )
Epeak [keV] : 2.25278 ( -2.25278 -2.25278 )
Norm@50keV : 0.449893 ( -0.283114 0.284366 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.94 using 59 PHA bins.
# Reduced chi-squared = 1.053 for 55 degrees of freedom
# Null hypothesis probability = 3.673741e-01
Photon flux (15-150 keV) in 0.016 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] : 4.99327 (-1.73345 0.987097)
R^2/D10^2 : 32.7632 (-32.7695 239.997)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.61 using 59 PHA bins.
# Reduced chi-squared = 0.9756 for 57 degrees of freedom
# Null hypothesis probability = 5.274546e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.268e-09 8.408e-10
25- 50 8.254e-10 5.510e-10
50-150 3.334e-11 3.403e-11
15-150 2.127e-09 1.426e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.8638 (-3.52727 3.46631)
Norm : 100.391 (-56.092 130.413)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.62 using 59 PHA bins.
# Reduced chi-squared = 0.9758 for 57 degrees of freedom
# Null hypothesis probability = 5.269069e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.242e-09 6.927e-10
25- 50 5.954e-10 3.238e-10
50-150 5.081e-11 4.408e-11
15-150 1.888e-09 9.678e-10
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.20205 (-1.25585 1.36507)
R1^2/D10^2 : 73.0841 (-57.1583 454.993)
kT2 [keV] : 199.363 (-199.363 -199.363)
R2^2/D10^2 : 6.31993E-05 (-6.32137e-05 68.7661)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.48 using 59 PHA bins.
#Fit statistic : Chi-Squared = 53.47 using 59 PHA bins.
# Reduced chi-squared = 0.9724 for 55 degrees of freedom
# Reduced chi-squared = 0.9722 for 55 degrees of freedom
# Null hypothesis probability = 5.327312e-01
# Null hypothesis probability = 5.332094e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.346e-09 8.208e-10
25- 50 5.675e-10 3.883e-10
50-150 2.590e-10 1.288e-11
15-150 2.173e-09 1.241e-09
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 0.016 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 4.29291 ( -0.644427 0.875103 )
Norm@50keV : 3.31043E-03 ( -0.00208508 0.00209223 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.94 using 59 PHA bins.
# Reduced chi-squared = 1.016 for 57 degrees of freedom
# Null hypothesis probability = 4.403954e-01
Photon flux (15-150 keV) in 0.016 sec: 2.64764 ( -1.14538 1.13783 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.45518e-09 ( -6.07971e-10 6.07626e-10 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.016 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 5.64974E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.57 using 59 PHA bins.
# Reduced chi-squared = 1.242 for 56 degrees of freedom
# Null hypothesis probability = 1.051577e-01
Photon flux (15-150 keV) in 0.016 sec: 3.57698 ( -1.44974 1.4437 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.05651e-09 ( -4.33728e-10 8.49616e-10 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 0.016 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.33762 ( 8.33762 8.33762 )
beta : -4.29301 ( -0.873759 0.644589 )
Epeak [keV] : 2.25278 ( -2.25278 -2.25278 )
Norm@50keV : 0.449893 ( -0.283114 0.284366 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.94 using 59 PHA bins.
# Reduced chi-squared = 1.053 for 55 degrees of freedom
# Null hypothesis probability = 3.673741e-01
Photon flux (15-150 keV) in 0.016 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] : 4.99327 (-1.73345 0.987097)
R^2/D10^2 : 32.7632 (-32.7695 239.997)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.61 using 59 PHA bins.
# Reduced chi-squared = 0.9756 for 57 degrees of freedom
# Null hypothesis probability = 5.274546e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.268e-09 8.280e-10
25- 50 8.254e-10 5.649e-10
50-150 3.334e-11 3.341e-11
15-150 2.127e-09 1.394e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.8638 (-3.52727 3.46631)
Norm : 100.391 (-56.092 130.413)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.62 using 59 PHA bins.
# Reduced chi-squared = 0.9758 for 57 degrees of freedom
# Null hypothesis probability = 5.269069e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.242e-09 5.803e-10
25- 50 5.954e-10 3.198e-10
50-150 5.081e-11 4.334e-11
15-150 1.888e-09 9.350e-10
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.20205 (-1.25585 1.36507)
R1^2/D10^2 : 73.0841 (-57.1583 454.993)
kT2 [keV] : 199.363 (-199.363 -199.363)
R2^2/D10^2 : 6.31993E-05 (-6.32137e-05 68.7661)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.48 using 59 PHA bins.
#Fit statistic : Chi-Squared = 53.47 using 59 PHA bins.
# Reduced chi-squared = 0.9724 for 55 degrees of freedom
# Reduced chi-squared = 0.9722 for 55 degrees of freedom
# Null hypothesis probability = 5.327312e-01
# Null hypothesis probability = 5.332094e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.346e-09 8.480e-10
25- 50 5.675e-10 3.713e-10
50-150 2.590e-10 1.255e-11
15-150 2.173e-09 1.237e-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: 4.29291 ( -0.644427 0.875103 )
Norm@50keV : 3.31043E-03 ( -0.00208508 0.00209223 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.94 using 59 PHA bins.
# Reduced chi-squared = 1.016 for 57 degrees of freedom
# Null hypothesis probability = 4.403954e-01
Photon flux (15-150 keV) in 0.016 sec: 2.64764 ( -1.14538 1.13783 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.45518e-09 ( -6.07971e-10 6.07626e-10 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 5.64974E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.57 using 59 PHA bins.
# Reduced chi-squared = 1.242 for 56 degrees of freedom
# Null hypothesis probability = 1.051577e-01
Photon flux (15-150 keV) in 0.016 sec: 3.57698 ( -1.44974 1.4437 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.05651e-09 ( -4.33728e-10 8.49616e-10 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.33762 ( 8.33762 8.33762 )
beta : -4.29301 ( -0.873759 0.644589 )
Epeak [keV] : 2.25278 ( -2.25278 -2.25278 )
Norm@50keV : 0.449893 ( -0.283114 0.284366 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.94 using 59 PHA bins.
# Reduced chi-squared = 1.053 for 55 degrees of freedom
# Null hypothesis probability = 3.673741e-01
Photon flux (15-150 keV) in 0.016 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) = 3.61e-10
S(50-100 keV) = 7.36e-11
T90 vs. Hardness ratio plot
T90 = 0.0160000324249268 sec.
Hardness ratio (energy fluence ratio) = 0.203878
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.605697
Count Ratio (50-100 keV) / (15-25 keV) = 0.0868066
Mask shadow pattern
IMX = 1.158954132227205E-01, IMY = -1.939257385237809E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
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:
-239.648000 -198.448000
-197.648000 -1.648000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9743 -15.6145 0.8 39.5 83.9 15.6486 14.3 1.6 Sco X-1
254.5913 35.2717 4.3 52.0 157.1 -2.8475 -2.7 7.8 Her X-1
256.0624 -37.9176 4.3 39.3 45.1 1.4505 2.7 5.7 4U 1700-377
256.4575 -36.5621 5.7 38.2 46.4 1.0581 2.0 8.4 GX 349+2
262.8533 -24.8005 6.6 26.6 57.4 0.5894 1.7 9.1 GX 1+4
264.8992 -44.3212 0.0 40.0 30.6 0.4647 1.1 10.2 4U 1735-44
268.3381 -1.3789 5.3 17.7 120.5 0.6554 2.2 4.8 SW J1753.5-0127
270.2346 -25.0595 2.2 21.7 46.2 1.4632 5.3 2.9 GX 5-1
270.1759 -25.8914 3.7 22.4 44.8 0.8565 3.1 11.2 GRS 1758-258
273.9640 -14.0289 3.0 12.0 68.8 0.9742 3.9 2.5 GX 17+2
276.0923 -30.4841 2700.0 23.6 27.3 -0.0009 -0.0 11.1 H1820-303
285.1664 -24.7624 7.8 16.5 7.0 -0.3877 -1.5 11.8 HT1900.1-2455
288.8891 10.9471 6.7 19.7 -159.3 0.4395 1.7 5.3 GRS 1915+105
299.5854 35.2000 83.3 45.7 -154.5 0.0711 0.1 0.3 Cyg X-1
308.2124 41.0780 10.6 53.9 -149.7 -1.3380 -1.1 8.8 Cyg X-3
262.8731 -33.9669 4.0 32.6 43.4 1.1435 2.9 9.8 GX 354-0
253.5904 -10.8863 2.4 30.8 91.0 2.1957 4.9 ------ UNKNOWN
285.5805 -35.2302 2.9 27.0 6.9 1.0639 4.0 ------ UNKNOWN
288.2516 -10.6970 2.9 4.3 -46.4 1.0138 4.0 ------ UNKNOWN
291.2777 38.1665 4.1 46.8 -164.5 1.6231 2.8 ------ UNKNOWN
309.9736 -29.6357 2.5 31.9 -36.1 1.3551 4.6 ------ UNKNOWN
UNKNOWN
UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 0.016000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8315 -15.7514 4.7 39.7 83.7 -0.0190 -2.5 10.8 Sco X-1
254.3372 35.4544 6.2 52.3 157.1 0.0160 1.9 8.9 Her X-1
255.8119 -37.7542 7.6 39.4 45.5 0.0067 1.5 9.9 4U 1700-377
256.2864 -36.2667 5.2 38.1 46.9 -0.0093 -2.2 11.8 GX 349+2
263.0009 -24.8845 18.7 26.6 57.1 -0.0015 -0.6 8.3 GX 1+4
264.9093 -44.3879 6.0 40.0 30.6 -0.0072 -1.9 8.0 4U 1735-44
268.2359 -1.6180 0.0 17.7 119.6 0.0009 0.4 12.7 SW J1753.5-0127
270.1835 -24.9612 4.8 21.7 46.4 0.0056 2.4 8.9 GX 5-1
270.1968 -25.8176 9.4 22.3 44.9 0.0028 1.2 7.3 GRS 1758-258
273.9461 -13.8945 6.0 12.0 69.4 0.0039 1.9 9.2 GX 17+2
276.0085 -30.2149 4.4 23.4 27.7 0.0055 2.6 10.1 H1820-303
284.8757 -24.9213 52.2 16.7 7.9 0.0004 0.2 8.7 HT1900.1-2455
288.9377 10.9909 4.0 19.7 -159.2 0.0056 2.9 8.6 GRS 1915+105
299.4871 35.0622 0.0 45.5 -154.5 -0.0071 -1.7 9.8 Cyg X-1
307.9643 40.9468 144.5 53.7 -149.8 0.0007 0.1 6.6 Cyg X-3
262.9359 -33.8261 17.3 32.5 43.5 0.0020 0.7 2.7 GX 354-0
267.1581 34.8551 2.5 46.2 168.4 0.0202 4.6 ------ UNKNOWN
274.4897 -16.1643 2.1 12.7 59.1 0.0109 5.5 ------ UNKNOWN
297.0625 38.2936 2.6 48.0 -158.5 0.0206 4.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
42.652600 171.392000
172.352000 260.422000
261.352000 280.242000
281.352000 281.932000
283.352000 288.612000
289.352000 308.382000
309.352000 538.452600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9815 -15.6372 0.4 28.4 98.0 42.1415 32.1 0.2 Sco X-1
254.3818 35.3398 22.0 55.0 170.9 1.7112 0.5 3.7 Her X-1
255.8274 -37.9282 29.4 27.3 44.6 0.4076 0.4 9.1 4U 1700-377
256.4949 -36.3887 3.5 25.8 46.1 3.3177 3.3 3.5 GX 349+2
262.8348 -24.6868 5.8 13.9 61.4 1.5115 2.0 10.1 GX 1+4
264.5215 -44.3113 0.0 29.4 25.8 1.6988 1.8 12.6 4U 1735-44
268.3632 -1.5194 33.7 15.9 167.8 -0.2682 -0.3 4.0 SW J1753.5-0127
270.3170 -25.0024 3.3 9.7 34.7 2.6292 3.5 4.9 GX 5-1
270.1683 -25.9133 0.0 10.6 33.2 1.8401 2.4 12.5 GRS 1758-258
273.9937 -14.1913 8.0 2.1 175.3 1.1185 1.4 9.3 GX 17+2
275.9237 -30.3670 206.8 14.2 6.3 0.0488 0.1 0.1 H1820-303
285.0321 -25.0757 9.3 13.2 -35.0 -0.9702 -1.2 9.3 HT1900.1-2455
288.7067 11.0769 10.3 30.6 -140.9 1.3263 1.1 9.6 GRS 1915+105
263.1473 -33.9716 12.5 20.5 39.0 -0.8033 -0.9 11.4 GX 354-0
331.0947 -50.6843 3.3 56.5 -28.3 16.7629 3.5 ------ UNKNOWN
305.3099 21.1694 3.1 48.0 -129.1 15.3521 3.7 ------ UNKNOWN
Plot creation:
Sun May 17 21:43:25 EDT 2020