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
207.0395 -63.2706 0.0039 27.0 47.2 20.9578 48.7 TRIG_00886496
------------------------------------------
Foreground time interval of the image:
-16.399 34.740 (delta_t = 51.139 [sec])
36.000 129.801 (delta_t = 93.801 [sec])
Background time interval of the image:
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
8 ms binning
From T100_start-3 s to T100_start+3 s
2 ms binning
From T100_start-1 s to T100_start+1 s
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
Multiple GTIs in the spectrum
tstart tstop
-86.032000 -70.930000
-70.000000 -55.095800
-54.000000 34.740000
36.000000 375.656000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.10045 ( -0.0330747 0.0331247 )
Norm@50keV : 8.84599E-03 ( -0.000146986 0.00014696 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 86.78 using 59 PHA bins.
# Reduced chi-squared = 1.522 for 57 degrees of freedom
# Null hypothesis probability = 6.697781e-03
Photon flux (15-150 keV) in 458.4 sec: 1.39201 ( -0.0305709 0.0307714 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.76769e-05 ( -6.24836e-07 6.24923e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-86.032000 -70.930000
-70.000000 -55.095800
-54.000000 34.740000
36.000000 375.656000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.52499 ( -0.15389 0.149002 )
Epeak [keV] : 43.5485 ( -4.75967 3.65537 )
Norm@50keV : 1.63693E-02 ( -0.00236178 0.00286334 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 39.60 using 59 PHA bins.
# Reduced chi-squared = 0.7072 for 56 degrees of freedom
# Null hypothesis probability = 9.524016e-01
Photon flux (15-150 keV) in 458.4 sec: 1.30349 ( -0.03621 0.03661 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.59299e-05 ( -7.52234e-07 7.5338e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-86.032000 -70.930000
-70.000000 -55.095800
-54.000000 34.740000
36.000000 375.656000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.52498 ( -0.116466 0.129379 )
beta : -10.0000 ( 10 8.34888e-14 )
Epeak [keV] : 43.5410 ( -4.75364 3.65395 )
Norm@50keV : 1.63664E-02 ( -0.00235887 0.00286418 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 39.60 using 59 PHA bins.
# Reduced chi-squared = 0.7200 for 55 degrees of freedom
# Null hypothesis probability = 9.415527e-01
Photon flux (15-150 keV) in 458.4 sec: 1.30629 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 3.58874e-05 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 13.1204 ( )
R^2/D10^2 : 0.199764 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 666.71 using 59 PHA bins.
# Reduced chi-squared = 11.697 for 57 degrees of freedom
# Null hypothesis probability = 7.666750e-105
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.343e-06 1.141e-07
25- 50 1.163e-05 2.544e-07
50-150 1.272e-05 3.553e-07
15-150 2.769e-05 4.722e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 73.2484 (-3.52033 3.81386)
Norm : 6.28913 (-0.20896 0.216483)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.20 using 59 PHA bins.
# Reduced chi-squared = 0.7755 for 57 degrees of freedom
# Null hypothesis probability = 8.922679e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.430e-06 2.109e-07
25- 50 1.196e-05 2.338e-07
50-150 1.588e-05 4.332e-07
15-150 3.528e-05 5.822e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.85412 (-0.436766 0.452049)
R1^2/D10^2 : 1.72936 (-0.362935 0.494905)
kT2 [keV] : 20.9938 (-1.21093 1.42679)
R2^2/D10^2 : 2.27665E-02 (-0.00568859 0.00686468)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.87 using 59 PHA bins.
# Reduced chi-squared = 0.9612 for 55 degrees of freedom
# Null hypothesis probability = 5.565187e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.720e-06 4.263e-07
25- 50 1.216e-05 3.988e-07
50-150 1.585e-05 5.845e-07
15-150 3.473e-05 1.077e-06
Peak spectrum fit
Power-law model
Time interval is from -22.256 sec. to -21.256 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.02397 ( -0.240325 0.255415 )
Norm@50keV : 1.30715E-02 ( -0.00222685 0.00216879 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.84 using 59 PHA bins.
# Reduced chi-squared = 0.9094 for 57 degrees of freedom
# Null hypothesis probability = 6.686490e-01
Photon flux (15-150 keV) in 1 sec: 1.98265 ( -0.274858 0.275042 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.20711e-07 ( -1.90557e-08 1.94212e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -22.256 sec. to -21.256 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.994518 ( -1.72718 1.14696 )
Epeak [keV] : 39.5460 ( )
Norm@50keV : 5.28149E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.98 using 59 PHA bins.
# Reduced chi-squared = 0.8925 for 56 degrees of freedom
# Null hypothesis probability = 7.008049e-01
Photon flux (15-150 keV) in 1 sec: 1.92173 ( -0.28721 0.28632 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.0987e-07 ( -2.05528e-08 2.339e-08 ) ergs/cm2
Band function
Time interval is from -22.256 sec. to -21.256 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.717964 ( 0.63508 0.63508 )
beta : -2.59473 ( 2.68819 0.743993 )
Epeak [keV] : 37.4997 ( -37.297 16.7576 )
Norm@50keV : 8.04277E-02 ( -0.0942482 1978.86 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.25 using 59 PHA bins.
# Reduced chi-squared = 0.8954 for 55 degrees of freedom
# Null hypothesis probability = 6.931210e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.13054e-07 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.96925 (-1.30867 1.51525)
R^2/D10^2 : 0.961409 (-0.412964 0.706725)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.15 using 59 PHA bins.
# Reduced chi-squared = 0.9675 for 57 degrees of freedom
# Null hypothesis probability = 5.449097e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.944e-08 5.275e-09
25- 50 4.812e-08 9.705e-09
50-150 2.489e-08 8.500e-09
15-150 9.245e-08 1.794e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 61.5879 (-19.5392 36.1438)
Norm : 10.3590 (-2.18903 2.7156)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.11 using 59 PHA bins.
# Reduced chi-squared = 0.8791 for 57 degrees of freedom
# Null hypothesis probability = 7.292553e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.614e-08 4.565e-09
25- 50 4.010e-08 6.520e-09
50-150 4.662e-08 1.544e-08
15-150 1.129e-07 2.296e-08
Double BB
R1^2/D10^2 : 1.30598 (-28.5688 6774.84)
kT2 [keV] : 200.000 (-200 -200)
R2^2/D10^2 : 1.15337E-04 (-7.28433e-05 0.000586668)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.19 using 59 PHA bins.
#Fit statistic : Chi-Squared = 49.72 using 59 PHA bins.
#Fit statistic : Chi-Squared = 49.56 using 59 PHA bins.
# Reduced chi-squared = 0.9126 for 55 degrees of freedom
# Reduced chi-squared = 0.9040 for 55 degrees of freedom
# Reduced chi-squared = 0.9012 for 55 degrees of freedom
# Null hypothesis probability = 6.584126e-01
# Null hypothesis probability = 6.759963e-01
# Null hypothesis probability = 6.816154e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.512e-08 1.321e-08
25- 50 4.248e-08 2.248e-08
50-150 3.292e-08 1.869e-08
15-150 1.005e-07 5.320e-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: 2.01988 ( -0.0479088 0.0481421 )
Norm@50keV : 8.72362E-03 ( -0.000220528 0.0002201 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.49 using 59 PHA bins.
# Reduced chi-squared = 1.079 for 57 degrees of freedom
# Null hypothesis probability = 3.184529e-01
Photon flux (15-150 keV) in 144.9 sec: 1.32065 ( -0.0372601 0.0374476 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.16701e-05 ( -2.86186e-07 2.86335e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.51503 ( -0.217547 0.206927 )
Epeak [keV] : 46.7336 ( -5.82424 5.44124 )
Norm@50keV : 1.56275E-02 ( -0.00325466 0.00438292 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 42.97 using 59 PHA bins.
# Reduced chi-squared = 0.7674 for 56 degrees of freedom
# Null hypothesis probability = 8.992994e-01
Photon flux (15-150 keV) in 144.9 sec: 1.26382 ( -0.04276 0.04303 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.11571e-05 ( -3.49209e-07 3.49455e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 3.09264E-02 ( -1.33282 2.16687 )
beta : -2.17343 ( -0.0926229 0.0821491 )
Epeak [keV] : 33.1524 ( -5.14345 10.5642 )
Norm@50keV : 0.168033 ( -0.168758 6.70065 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 35.95 using 59 PHA bins.
# Reduced chi-squared = 0.6536 for 55 degrees of freedom
# Null hypothesis probability = 9.781519e-01
Photon flux (15-150 keV) in 144.9 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.11552e-05 ( -1.11542e-05 -3.28227e-07 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 1.17e-05
S(50-100 keV) = 1.09e-05
T90 vs. Hardness ratio plot
T90 = 405.927999973297 sec.
Hardness ratio (energy fluence ratio) = 0.931624
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.11233
Count Ratio (50-100 keV) / (15-25 keV) = 0.574469
Mask shadow pattern
IMX = 3.464468727388778E-01, IMY = -3.743043367629094E-01
TIME vs. PHA plot around the trigger time
TIME vs. DetID plot around the trigger time
100 us light curve (15-350 keV)
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:
-16.399400 34.740000
36.000000 112.240000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.0843 -60.5644 12.7 44.3 50.5 -0.9998 -0.9 7.7 Cen X-3
186.6872 -62.8404 3.4 36.1 49.7 2.0204 3.4 4.3 GX 301-2
244.9506 -15.6317 0.9 32.2 -177.9 4.3998 13.0 1.7 Sco X-1
255.9720 -37.8502 3.5 11.6 -138.6 0.9608 3.3 0.8 4U 1700-377
256.4944 -36.4190 2.9 13.1 -140.0 1.1593 4.0 2.9 GX 349+2
263.1904 -24.7875 3.7 26.1 -139.4 0.9663 3.1 10.2 GX 1+4
264.4767 -44.3610 0.0 12.1 -93.2 -0.1457 -0.6 12.6 4U 1735-44
268.4269 -1.3835 5.6 49.8 -145.3 -1.9836 -2.1 5.4 SW J1753.5-0127
270.1923 -25.0593 6.5 28.8 -127.0 0.6249 1.8 5.1 GX 5-1
270.3002 -25.7473 5.0 28.3 -126.1 0.7998 2.3 0.3 GRS 1758-258
273.9846 -14.0075 495.0 40.2 -131.2 0.0111 0.0 2.1 GX 17+2
275.8981 -30.5236 5.4 27.6 -111.5 0.7996 2.2 9.5 H1820-303
284.9728 -25.0232 10.8 37.1 -107.4 0.8996 1.1 7.1 HT1900.1-2455
262.9286 -33.7540 16.1 18.1 -128.3 -0.2271 -0.7 5.7 GX 354-0
207.0374 -63.2720 0.2 27.0 47.2 18.1639 49.5 ------ UNKNOWN
241.1207 -29.2830 3.3 19.2 169.4 0.9435 3.4 ------ UNKNOWN
247.8186 -47.7931 1.2 0.1 -84.7 2.3899 9.4 ------ UNKNOWN
351.1338 -65.9419 3.5 52.2 -23.1 2.3486 3.4 ------ UNKNOWN
281.4875 -30.0435 3.9 31.3 -105.2 1.3410 3.0 ------ UNKNOWN
294.7441 -41.8233 2.8 33.4 -75.4 1.8346 4.1 ------ UNKNOWN
331.1899 -53.6565 3.7 50.1 -43.1 4.3190 3.1 ------ UNKNOWN
UNKNOWN
UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-16.399400 34.740000
36.000000 129.800600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.0743 -60.5759 9.4 44.3 50.5 -1.5223 -1.2 7.7 Cen X-3
186.7183 -62.8111 3.2 36.1 49.7 2.4557 3.6 3.0 GX 301-2
244.9495 -15.6335 0.9 32.2 -177.9 4.9322 12.9 1.8 Sco X-1
255.9531 -37.8510 3.1 11.6 -138.7 1.2071 3.7 1.6 4U 1700-377
256.4919 -36.4018 3.3 13.1 -140.1 1.1653 3.5 3.0 GX 349+2
263.1848 -24.7732 3.6 26.1 -139.5 1.1440 3.2 9.7 GX 1+4
264.4767 -44.3610 0.0 12.1 -93.2 -0.2157 -0.7 12.6 4U 1735-44
268.4309 -1.3884 4.8 49.8 -145.3 -2.5019 -2.4 5.4 SW J1753.5-0127
270.1968 -25.0616 7.2 28.8 -127.0 0.6337 1.6 4.9 GX 5-1
270.4051 -25.8188 11.3 28.3 -125.8 0.3985 1.0 7.2 GRS 1758-258
273.9101 -13.9239 18.0 40.3 -131.4 0.3390 0.6 8.8 GX 17+2
275.9371 -30.3879 18.9 27.7 -111.6 0.2560 0.6 1.4 H1820-303
284.9388 -24.9800 8.9 37.1 -107.5 1.2176 1.3 6.4 HT1900.1-2455
262.9661 -33.9912 13.8 17.9 -127.8 -0.3012 -0.8 9.5 GX 354-0
207.0395 -63.2706 0.2 27.0 47.2 20.9565 48.7 ------ UNKNOWN
247.8160 -47.7999 1.3 0.1 -80.1 2.6222 8.7 ------ UNKNOWN
335.3196 -82.6120 2.9 42.4 -3.9 1.8610 4.0 ------ UNKNOWN
281.5118 -30.0595 3.8 31.3 -105.1 1.5246 3.0 ------ UNKNOWN
294.7531 -41.8238 2.8 33.4 -75.4 2.0852 4.2 ------ UNKNOWN
331.1902 -53.6647 3.6 50.1 -43.1 4.9580 3.2 ------ UNKNOWN
321.1028 -48.5010 3.7 47.0 -53.2 5.4197 3.2 ------ UNKNOWN
UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
178.300590 416.300000
417.000000 543.120000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.5126 -60.7361 4.4 17.1 61.1 -9.4725 -2.6 8.9 Cen X-3
187.0512 -62.7259 5.3 9.1 63.8 7.1473 2.2 11.2 GX 301-2
245.1128 -15.6930 3.8 54.4 -153.9 38.4086 3.0 8.3 Sco X-1
255.8831 -37.9950 0.0 38.4 -128.3 3.1273 0.4 10.3 4U 1700-377
256.4745 -36.2842 8.1 40.1 -129.1 10.0414 1.4 8.5 GX 349+2
264.6855 -44.5884 3.3 37.0 -113.2 25.3053 3.5 8.7 4U 1735-44
262.9131 -33.9674 64.7 44.9 -124.3 -2.5036 -0.2 8.8 GX 354-0
191.9396 -24.3038 3.7 40.3 137.6 26.5130 3.1 ------ UNKNOWN
207.0440 -63.2720 0.9 0.0 121.3 43.9140 13.2 ------ UNKNOWN
308.6590 -71.1739 2.9 35.3 -54.0 24.6020 4.0 ------ UNKNOWN
27.5195 -57.2490 2.6 59.5 -20.5 108.6815 4.5 ------ UNKNOWN
Plot creation:
Wed Jan 30 06:51:30 EST 2019