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
244.9814 -15.8114 0.0680 23.7 -55.4 -1.7084 -2.8 TRIG_01125350
------------------------------------------
Foreground time interval of the image:
-183.252 71.201 (delta_t = 254.453 [sec])
Background time interval of the image:
-239.000 -183.252 (delta_t = 55.748 [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 64.000000
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 64.000000
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 64.000000
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
-183.252000 353.210000
355.000000 407.150000
408.000000 633.564000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 6.66505 ( -0.255746 0.254197 )
Norm@50keV : 6.85132E-05 ( -1.36791e-05 1.64564e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 71.21 using 59 PHA bins.
# Reduced chi-squared = 1.249 for 57 degrees of freedom
# Null hypothesis probability = 9.759980e-02
Photon flux (15-150 keV) in 814.2 sec: 0.554225 ( -0.0425625 0.0430327 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.31673e-05 ( -9.33708e-07 9.43316e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-183.252000 353.210000
355.000000 407.150000
408.000000 633.564000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 1.20533E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 740.05 using 59 PHA bins.
# Reduced chi-squared = 13.215 for 56 degrees of freedom
# Null hypothesis probability = 4.337682e-120
Photon flux (15-150 keV) in 814.2 sec: 0.504193 ( -0.054011 0.052506 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.20669e-05 ( -1.17456e-06 1.14159e-06 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-183.252000 353.210000
355.000000 407.150000
408.000000 633.564000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.64634 ( )
beta : -7.38061 ( )
Epeak [keV] : 19.6641 ( )
Norm@50keV : 1.24414E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 652.31 using 59 PHA bins.
# Reduced chi-squared = 11.860 for 55 degrees of freedom
# Null hypothesis probability = 4.742548e-103
Photon flux (15-150 keV) in 814.2 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] : 2.52413 (-0.108648 0.118113)
R^2/D10^2 : 234.454 (-77.9432 113.99)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 42.72 using 59 PHA bins.
# Reduced chi-squared = 0.7494 for 57 degrees of freedom
# Null hypothesis probability = 9.200330e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.123e-05 1.201e-06
25- 50 8.577e-07 1.242e-07
50-150 2.976e-10 1.463e-10
15-150 1.208e-05 1.303e-06
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 4.16471 (-0.25073 0.282132)
Norm : 250.943 (-72.3049 99.3638)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.169e-05 1.128e-06
25- 50 9.476e-07 1.264e-07
50-150 1.790e-09 8.366e-10
15-150 1.264e-05 1.352e-06
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.54767 (-0.108638 0.118122)
R1^2/D10^2 : 214.823 (-77.9504 113.981)
kT2 [keV] : 0.644174 (-1.11182 25.3948)
R2^2/D10^2 : 3.26686E+08 (-3.51101e+08 6.46138e+12)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Peak spectrum fit
Power-law model
Time interval is from 410.728 sec. to 411.728 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.48083 ( -0.775089 1.12387 )
Norm@50keV : 2.27334E-03 ( -0.00226961 0.00193237 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.22 using 59 PHA bins.
# Reduced chi-squared = 1.232 for 57 degrees of freedom
# Null hypothesis probability = 1.122135e-01
Photon flux (15-150 keV) in 1 sec: 0.905194 ( -0.1941 0.193726 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.53418e-08 ( -1.00529e-08 1.14636e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 410.728 sec. to 411.728 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.84425 ( )
Epeak [keV] : 3.92777 ( )
Norm@50keV : 2.08875E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 74.12 using 59 PHA bins.
# Reduced chi-squared = 1.324 for 56 degrees of freedom
# Null hypothesis probability = 5.288717e-02
Photon flux (15-150 keV) in 1 sec: 0.898059 ( -0.189705 0.202831 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.4412e-08 ( -9.2064e-09 1.24617e-08 ) ergs/cm2
Band function
Time interval is from 410.728 sec. to 411.728 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -6.23912 ( 6.23912 6.23912 )
beta : -3.48336 ( -1.12094 0.776545 )
Epeak [keV] : 24.2096 ( -24.2096 -24.2096 )
Norm@50keV : 0.308317 ( -0.30838 0.262711 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.22 using 59 PHA bins.
# Reduced chi-squared = 1.277 for 55 degrees of freedom
# Null hypothesis probability = 8.111594e-02
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Single BB
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 3.27289 (-0.77466 1.11812)
R^2/D10^2 : 66.2870 (-66.3192 303.492)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.086e-08 1.183e-08
25- 50 4.081e-09 2.460e-09
50-150 1.292e-11 1.436e-11
15-150 2.496e-08 1.404e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.39840 (-4.35185 20.6167)
Norm : 33.2091 (-25.5536 129.268)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.995e-08 1.110e-08
25- 50 7.890e-09 4.801e-09
50-150 4.550e-10 4.375e-10
15-150 2.830e-08 1.639e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.48378 (-0.734672 0.850506)
R1^2/D10^2 : 320.104 (-272.027 4444.55)
kT2 [keV] : 13.4682 (-4.07296 6.32596)
R2^2/D10^2 : 7.28023E-02 (-0.0574021 0.157201)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.954e-08 1.092e-08
25- 50 1.120e-08 6.585e-09
50-150 1.170e-08 8.135e-09
15-150 4.245e-08 2.269e-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: 6.19250 ( -0.352186 0.355675 )
Norm@50keV : 9.99861E-05 ( -2.80471e-05 3.65654e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.09 using 59 PHA bins.
# Reduced chi-squared = 0.8436 for 57 degrees of freedom
# Null hypothesis probability = 7.937327e-01
Photon flux (15-150 keV) in 254.5 sec: 0.499553 ( -0.0441179 0.0444367 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.78358e-06 ( -3.06942e-07 3.08663e-07 ) 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 : 1.94442E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 423.67 using 59 PHA bins.
# Reduced chi-squared = 7.5655 for 56 degrees of freedom
# Null hypothesis probability = 6.685512e-58
Photon flux (15-150 keV) in 254.5 sec: 0.483800 ( -0.049885 0.048808 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.63227e-06 ( -3.45178e-07 3.37772e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.17438 ( 6.16147 8.17438 )
beta : -6.23300 ( -0.326154 0.38557 )
Epeak [keV] : 289.438 ( -289.438 -289.438 )
Norm@50keV : 1.30815E-02 ( -0.00351861 0.0052891 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.12 using 59 PHA bins.
# Reduced chi-squared = 0.8750 for 55 degrees of freedom
# Null hypothesis probability = 7.326068e-01
Photon flux (15-150 keV) in 254.5 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) = 1.17e-06
S(50-100 keV) = 4.60e-08
T90 vs. Hardness ratio plot
T90 = 527.619999885559 sec.
Hardness ratio (energy fluence ratio) = 0.0393162
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.0702232
Count Ratio (50-100 keV) / (15-25 keV) = -0.00564431
Mask shadow pattern
IMX = 2.492296391413217E-01, IMY = 3.610915106966280E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
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:
-239.000000 -183.252000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9706 -15.7817 0.6 23.7 -55.3 3.1612 18.9 8.5 Sco X-1
255.7984 -37.8099 4.1 12.5 -132.4 -0.3563 -2.8 9.2 4U 1700-377
256.3845 -36.5710 7.6 11.3 -129.3 0.1962 1.5 9.2 GX 349+2
263.0645 -24.8590 7.2 5.1 -30.9 0.2370 1.6 7.4 GX 1+4
264.7175 -44.5252 135.2 15.6 -170.1 -0.0122 -0.1 4.6 4U 1735-44
268.2475 -1.3129 5.1 27.7 9.5 -0.4044 -2.3 11.1 SW J1753.5-0127
270.3991 -25.1732 8.6 5.2 49.7 0.1850 1.3 8.4 GX 5-1
270.1570 -25.8993 4.6 4.6 53.9 0.3420 2.5 12.2 GRS 1758-258
274.1438 -13.9542 7.6 16.7 32.7 0.2206 1.5 9.4 GX 17+2
275.8369 -30.4948 32.1 8.4 108.3 0.0504 0.4 8.9 H1820-303
285.0164 -24.9210 92.7 17.1 86.1 0.0212 0.1 1.1 HT1900.1-2455
288.8078 10.8102 14.0 45.3 37.3 0.3059 0.8 8.1 GRS 1915+105
262.9374 -33.9444 5.4 5.8 -144.9 0.2879 2.1 7.1 GX 354-0
309.6928 -20.0919 2.4 40.2 92.8 2.7154 4.9 ------ UNKNOWN
222.1857 -56.5454 3.1 41.4 -139.0 0.9732 3.7 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-183.252000 71.200580
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9824 -15.7818 3.7 23.7 -55.3 -1.8793 -3.1 8.5 Sco X-1
255.8385 -37.7806 8.9 12.4 -132.4 0.6549 1.3 8.0 4U 1700-377
256.3919 -36.2745 113.6 11.1 -128.1 0.0508 0.1 9.2 GX 349+2
263.0579 -24.8358 9.2 5.1 -30.8 -0.6247 -1.3 6.0 GX 1+4
264.9078 -44.2911 5.5 15.4 -170.6 -1.1138 -2.1 11.9 4U 1735-44
268.2536 -1.6125 0.0 27.4 9.6 -1.3793 -2.3 11.8 SW J1753.5-0127
270.1411 -25.2461 0.0 5.0 48.3 0.1265 0.2 12.7 GX 5-1
270.1185 -25.6130 12.5 4.7 51.1 0.4786 0.9 12.6 GRS 1758-258
274.1297 -13.8718 0.0 16.7 32.6 -1.4194 -2.7 12.2 GX 17+2
275.9281 -30.3684 26.3 8.4 107.4 -0.2261 -0.4 0.2 H1820-303
285.1163 -25.0502 6.2 17.1 86.7 1.1035 1.9 8.9 HT1900.1-2455
288.9731 10.8106 159.2 45.4 37.5 0.1239 0.1 13.1 GRS 1915+105
262.8520 -33.8854 9.2 5.8 -144.0 -0.6142 -1.2 7.5 GX 354-0
237.1783 -33.5418 2.2 25.3 -102.4 3.5363 5.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
132.300590 353.210000
355.000000 407.150000
408.000000 415.900610
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9406 -15.7868 0.4 0.0 14.9 14.0956 26.2 9.1 Sco X-1
254.5103 35.3751 4.2 52.0 3.2 3.5066 2.7 3.2 Her X-1
255.8254 -37.9924 6.4 24.2 151.9 -1.1223 -1.8 11.7 4U 1700-377
256.4657 -36.4204 5.3 23.0 149.0 1.3598 2.2 1.5 GX 349+2
262.8534 -24.6044 146.8 18.9 113.8 -0.0550 -0.1 12.0 GX 1+4
264.9270 -44.5494 8.4 33.3 147.0 1.2207 1.4 9.9 4U 1735-44
268.5122 -1.3285 0.0 27.4 53.7 -1.0192 -1.2 11.4 SW J1753.5-0127
270.2842 -25.0791 8.8 25.4 108.8 1.1408 1.3 0.0 GX 5-1
270.3045 -25.7438 101.2 25.7 110.2 0.1000 0.1 0.1 GRS 1758-258
273.8931 -13.9039 5.6 28.0 83.3 2.1184 2.1 10.3 GX 17+2
276.0532 -30.2143 10.9 31.9 115.6 -1.2343 -1.1 11.3 H1820-303
285.0899 -25.0323 10.7 38.6 103.8 1.6550 1.1 7.3 HT1900.1-2455
263.0783 -33.6862 6.8 24.2 134.1 -1.2222 -1.7 10.0 GX 354-0
272.5254 -21.2789 3.5 26.7 99.3 2.8616 3.3 ------ UNKNOWN
272.1483 -48.4629 2.6 39.5 144.8 6.5311 4.4 ------ UNKNOWN
262.2969 -17.0868 2.5 16.7 90.1 3.0468 4.6 ------ UNKNOWN
238.4351 22.4652 3.0 38.8 -16.3 3.1118 3.9 ------ UNKNOWN
230.4270 -17.4125 2.9 14.0 -105.3 2.1680 4.0 ------ UNKNOWN
229.1202 39.3824 2.9 57.1 -21.2 8.0274 3.9 ------ UNKNOWN
191.8999 -60.2436 3.1 58.4 -159.0 14.1839 3.7 ------ UNKNOWN
224.2487 34.0779 2.5 53.6 -28.0 8.8479 4.7 ------ UNKNOWN
UNKNOWN
UNKNOWN
UNKNOWN
Plot creation:
Tue Sep 27 07:28:41 EDT 2022