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
293.7385 +21.8955 0.0287 34.8 -131.6 0.0402 6.7 TRIG_00687123
------------------------------------------
Foreground time interval of the image:
0.000 0.064 (delta_t = 0.064 [sec])
Background time interval of the image:
-168.543 -3.644 (delta_t = 164.899 [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 0.064000
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 0.064000
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 0.064000
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 0.064 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.22499 ( -0.42629 0.628025 )
Norm@50keV : 1.28711E-02 ( -0.00617378 0.0066271 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.27 using 59 PHA bins.
# Reduced chi-squared = 1.145 for 57 degrees of freedom
# Null hypothesis probability = 2.112778e-01
Photon flux (15-150 keV) in 0.064 sec: 4.19233 ( -1.2632 1.26277 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.1168e-08 ( -3.57632e-09 3.70756e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -4.57010 ( 3.29886 3.04283 )
Epeak [keV] : 28.8188 ( -5.71091 4.84353 )
Norm@50keV : 1618.97 ( -1589.1 1.41297e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.77 using 59 PHA bins.
# Reduced chi-squared = 0.9067 for 56 degrees of freedom
# Null hypothesis probability = 6.724412e-01
Photon flux (15-150 keV) in 0.064 sec: 5.07929 ( -1.34026 1.3226 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.42179e-08 ( -4.02458e-09 3.9049e-09 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 0.064 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.54353 ( -4.28851 -4.54353 )
beta : -9.94555 ( 9.94555 18.2645 )
Epeak [keV] : 28.8243 ( -4.33402 4.64972 )
Norm@50keV : 1548.68 ( -382.881 7923.05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.84 using 59 PHA bins.
# Reduced chi-squared = 0.9243 for 55 degrees of freedom
# Null hypothesis probability = 6.343994e-01
Photon flux (15-150 keV) in 0.064 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.4529e-08 ( -1.45285e-08 -4.12294e-09 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.05639 (-1.25277 1.26602)
R^2/D10^2 : 10.6879 (-5.65208 13.3341)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.58 using 59 PHA bins.
# Reduced chi-squared = 0.9048 for 57 degrees of freedom
# Null hypothesis probability = 6.779915e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.517e-09 2.483e-09
25- 50 7.674e-09 3.579e-09
50-150 1.309e-09 9.936e-10
15-150 1.450e-08 6.656e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 20.5957 (-5.906 7.74282)
Norm : 58.5851 (-22.2067 36.7235)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.74 using 59 PHA bins.
# Reduced chi-squared = 1.013 for 57 degrees of freedom
# Null hypothesis probability = 4.478108e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.959e-09 2.401e-09
25- 50 5.337e-09 2.582e-09
50-150 1.678e-09 1.257e-09
15-150 1.297e-08 4.972e-09
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 0.744941 (-7.05659 -7.05659)
R1^2/D10^2 : 3.93652E+07 (-3.62113e+07 -3.62113e+07)
kT2 [keV] : 7.08907 (-1.27521 1.31452)
R2^2/D10^2 : 10.4184 (-5.74085 13.5034)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.58 using 59 PHA bins.
#Fit statistic : Chi-Squared = 51.55 using 59 PHA bins.
# Reduced chi-squared = 0.9377 for 55 degrees of freedom
# Reduced chi-squared = 0.9373 for 55 degrees of freedom
# Null hypothesis probability = 6.062466e-01
# Null hypothesis probability = 6.072033e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.518e-09 2.143e+00
25- 50 7.671e-09 1.977e+01
50-150 1.307e-09 4.173e+02
15-150 1.450e-08 4.918e+02
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 0.064 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.22499 ( -0.42629 0.628025 )
Norm@50keV : 1.28711E-02 ( -0.00617378 0.0066271 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.27 using 59 PHA bins.
# Reduced chi-squared = 1.145 for 57 degrees of freedom
# Null hypothesis probability = 2.112778e-01
Photon flux (15-150 keV) in 0.064 sec: 4.19233 ( -1.2632 1.26277 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.1168e-08 ( -3.57632e-09 3.70756e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -4.57010 ( 3.29886 3.04283 )
Epeak [keV] : 28.8188 ( -5.71091 4.84353 )
Norm@50keV : 1618.97 ( -1589.1 1.41297e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.77 using 59 PHA bins.
# Reduced chi-squared = 0.9067 for 56 degrees of freedom
# Null hypothesis probability = 6.724412e-01
Photon flux (15-150 keV) in 0.064 sec: 5.07929 ( -1.34026 1.3226 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.42179e-08 ( -4.02458e-09 3.9049e-09 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 0.064 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.54353 ( -4.28851 -4.54353 )
beta : -9.94555 ( 9.94555 18.2645 )
Epeak [keV] : 28.8243 ( -4.33402 4.64972 )
Norm@50keV : 1548.68 ( -382.881 7923.05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.84 using 59 PHA bins.
# Reduced chi-squared = 0.9243 for 55 degrees of freedom
# Null hypothesis probability = 6.343994e-01
Photon flux (15-150 keV) in 0.064 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.4529e-08 ( -1.45285e-08 -4.12294e-09 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.05639 (-1.25277 1.26602)
R^2/D10^2 : 10.6879 (-5.65208 13.3341)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.58 using 59 PHA bins.
# Reduced chi-squared = 0.9048 for 57 degrees of freedom
# Null hypothesis probability = 6.779915e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.517e-09 2.770e-09
25- 50 7.674e-09 3.533e-09
50-150 1.309e-09 9.782e-10
15-150 1.450e-08 6.819e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 20.5957 (-5.906 7.74282)
Norm : 58.5851 (-22.2067 36.7235)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.74 using 59 PHA bins.
# Reduced chi-squared = 1.013 for 57 degrees of freedom
# Null hypothesis probability = 4.478108e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.959e-09 2.381e-09
25- 50 5.337e-09 2.304e-09
50-150 1.678e-09 1.293e-09
15-150 1.297e-08 4.720e-09
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 0.744941 (-7.05659 -7.05659)
R1^2/D10^2 : 3.93652E+07 (-3.62113e+07 -3.62113e+07)
kT2 [keV] : 7.08907 (-1.27521 1.31452)
R2^2/D10^2 : 10.4184 (-5.74085 13.5034)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.58 using 59 PHA bins.
#Fit statistic : Chi-Squared = 51.55 using 59 PHA bins.
# Reduced chi-squared = 0.9377 for 55 degrees of freedom
# Reduced chi-squared = 0.9373 for 55 degrees of freedom
# Null hypothesis probability = 6.062466e-01
# Null hypothesis probability = 6.072033e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.518e-09 2.261e+00
25- 50 7.671e-09 1.880e+01
50-150 1.307e-09 4.176e+02
15-150 1.450e-08 4.794e+02
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: 3.22499 ( -0.42629 0.628025 )
Norm@50keV : 1.28711E-02 ( -0.00617378 0.0066271 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.27 using 59 PHA bins.
# Reduced chi-squared = 1.145 for 57 degrees of freedom
# Null hypothesis probability = 2.112778e-01
Photon flux (15-150 keV) in 0.064 sec: 4.19233 ( -1.2632 1.26277 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.1168e-08 ( -3.57632e-09 3.70756e-09 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -4.57010 ( 3.29886 3.04283 )
Epeak [keV] : 28.8188 ( -5.71091 4.84353 )
Norm@50keV : 1618.97 ( -1589.1 1.41297e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.77 using 59 PHA bins.
# Reduced chi-squared = 0.9067 for 56 degrees of freedom
# Null hypothesis probability = 6.724412e-01
Photon flux (15-150 keV) in 0.064 sec: 5.07929 ( -1.34026 1.3226 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.42179e-08 ( -4.02406e-09 3.9049e-09 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.54353 ( -4.28851 -4.54353 )
beta : -9.94555 ( 9.94555 18.2645 )
Epeak [keV] : 28.8243 ( -4.33402 4.64972 )
Norm@50keV : 1548.68 ( -382.881 7923.05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.84 using 59 PHA bins.
# Reduced chi-squared = 0.9243 for 55 degrees of freedom
# Null hypothesis probability = 6.343994e-01
Photon flux (15-150 keV) in 0.064 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.4529e-08 ( -1.45285e-08 -4.12294e-09 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 3.65e-09
S(50-100 keV) = 1.60e-09
T90 vs. Hardness ratio plot
T90 = 0.0640000104904175 sec.
Hardness ratio (energy fluence ratio) = 0.438356
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.11987
Count Ratio (50-100 keV) / (15-25 keV) = 0.170011
Mask shadow pattern
IMX = -4.612964591656699E-01, IMY = 5.195095963454994E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
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:
-168.543410 -3.644000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9766 -15.6292 0.6 33.0 98.3 7.5689 19.5 0.7 Sco X-1
254.3822 35.2499 10.9 50.0 177.1 -0.6129 -1.1 6.7 Her X-1
255.9808 -37.8233 3.7 34.8 54.2 1.3816 3.2 1.3 4U 1700-377
256.4760 -36.3990 31.2 33.4 55.3 0.1438 0.4 2.4 GX 349+2
263.2029 -24.7985 5.9 21.0 63.5 0.4526 1.9 11.0 GX 1+4
264.6322 -44.6051 0.0 37.1 38.6 0.9072 2.4 10.4 4U 1735-44
268.2461 -1.3413 10.0 12.8 151.0 0.2340 1.2 9.9 SW J1753.5-0127
270.2516 -25.0099 2.7 17.4 47.4 0.9073 4.3 4.5 GX 5-1
270.3264 -25.7637 2.7 18.0 46.1 0.9010 4.2 1.8 GRS 1758-258
273.9535 -14.0291 2.3 6.2 64.0 0.9808 5.0 3.1 GX 17+2
276.0234 -30.4718 3.5 21.2 27.8 0.6815 3.3 8.1 H1820-303
285.0541 -25.0702 22.4 17.0 0.9 0.1033 0.5 9.0 HT1900.1-2455
288.7581 10.8777 3.3 22.8 -129.8 0.8538 3.5 4.7 GRS 1915+105
299.5752 35.1910 2.1 48.9 -134.2 5.5685 5.4 1.0 Cyg X-1
263.0989 -33.6695 0.0 28.0 50.1 0.4850 1.7 11.3 GX 354-0
279.2151 48.4313 3.6 57.8 -156.6 4.1033 3.2 ------ UNKNOWN
328.1519 -33.6428 3.0 51.8 -31.6 2.6363 3.9 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 0.064000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0576 -15.7367 10.0 32.9 98.1 -0.0073 -1.2 7.3 Sco X-1
254.3108 35.3654 8.5 50.1 177.1 -0.0116 -1.4 7.3 Her X-1
255.9210 -37.9681 5.1 34.9 54.1 0.0138 2.3 8.1 4U 1700-377
256.2616 -36.4538 7.2 33.6 55.5 0.0090 1.6 8.6 GX 349+2
263.1130 -24.5695 0.0 20.9 64.1 -0.0116 -2.7 12.0 GX 1+4
264.8969 -44.3697 5.3 36.8 38.5 0.0131 2.2 8.2 4U 1735-44
268.4575 -1.3568 7.9 12.6 151.6 -0.0054 -1.5 7.9 SW J1753.5-0127
270.3800 -25.0393 4.4 17.3 47.0 -0.0105 -2.6 5.7 GX 5-1
270.4016 -25.6308 5.5 17.9 46.1 -0.0091 -2.2 8.6 GRS 1758-258
273.8931 -13.9192 18.3 6.2 65.1 0.0023 0.6 9.6 GX 17+2
275.7568 -30.3878 8.7 21.1 28.4 0.0051 1.3 8.8 H1820-303
284.9804 -24.7787 7.1 16.7 0.7 -0.0057 -1.6 9.0 HT1900.1-2455
288.9004 11.0754 8.1 23.1 -129.7 0.0062 1.4 9.8 GRS 1915+105
299.6896 35.0828 5.4 48.9 -134.0 0.0385 2.1 8.6 Cyg X-1
262.9503 -33.8986 7.1 28.2 50.1 -0.0076 -1.6 4.3 GX 354-0
238.1793 27.7267 2.5 53.6 157.6 0.0924 4.6 ------ UNKNOWN
293.7385 21.8955 1.7 34.8 -131.6 0.0402 6.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
65.256590 962.369900
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.5974 35.2507 6.6 36.6 154.9 2.3586 1.8 8.8 Her X-1
268.3309 -1.6403 0.0 34.2 84.5 1.2965 0.8 11.5 SW J1753.5-0127
274.0636 -13.9873 6.2 40.7 64.8 4.5445 1.9 4.5 GX 17+2
285.0389 -24.9205 46.5 47.6 45.4 -0.6845 -0.2 0.2 HT1900.1-2455
288.7967 10.9776 1.3 11.9 58.9 5.3789 8.6 1.9 GRS 1915+105
299.5815 35.1947 0.3 14.2 -125.5 25.0079 35.9 0.6 Cyg X-1
308.0814 40.9882 1.2 22.6 -116.2 7.4344 9.6 2.5 Cyg X-3
326.1606 38.2888 289.2 32.2 -93.2 -0.0489 -0.0 2.0 Cyg X-2
256.8790 3.2950 3.2 40.3 102.5 9.3553 3.6 ------ UNKNOWN
246.1262 52.2350 3.0 47.3 176.8 5.8872 3.8 ------ UNKNOWN
308.3201 51.6466 3.5 31.8 -128.0 3.0530 3.3 ------ UNKNOWN
339.0586 -17.8934 2.8 59.6 -17.0 17.0730 4.1 ------ UNKNOWN
250.9342 75.6021 5.3 58.0 -156.8 10.3584 2.2 ------ UNKNOWN
Plot creation:
Mon May 23 13:16:30 EDT 2016