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
288.2715 +19.7755 0.0139 0.0 133.7 -12.6988 -13.9 TRIG_01126854
------------------------------------------
Foreground time interval of the image:
-81.336 93.320 (delta_t = 174.656 [sec])
94.000 154.610 (delta_t = 60.610 [sec])
156.000 231.950 (delta_t = 75.950 [sec])
233.000 320.050 (delta_t = 87.050 [sec])
321.000 420.750 (delta_t = 99.750 [sec])
421.000 572.504 (delta_t = 151.504 [sec])
Background time interval of the image:
-239.000 -217.060 (delta_t = 21.940 [sec])
-216.000 -99.200 (delta_t = 116.800 [sec])
-97.000 -81.336 (delta_t = 15.664 [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
-81.336000 93.320000
94.000000 154.610000
156.000000 231.950000
233.000000 320.050000
321.000000 420.750000
421.000000 572.504000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.08253 ( -0.0463482 0.0466012 )
Norm@50keV : 3.87438E-03 ( -8.51656e-05 8.48821e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.03 using 59 PHA bins.
# Reduced chi-squared = 0.7725 for 57 degrees of freedom
# Null hypothesis probability = 8.957351e-01
Photon flux (15-150 keV) in 649.5 sec: 0.604336 ( -0.0157345 0.0158603 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.33422e-05 ( -4.9022e-07 4.90502e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-81.336000 93.320000
94.000000 154.610000
156.000000 231.950000
233.000000 320.050000
321.000000 420.750000
421.000000 572.504000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.99550 ( -0.096377 -1.9955 )
Epeak [keV] : 2.86827 ( -1.06894 28.6606 )
Norm@50keV : 4.23413E-03 ( -0.000203383 0.000206193 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.30 using 59 PHA bins.
# Reduced chi-squared = 0.8090 for 56 degrees of freedom
# Null hypothesis probability = 8.460111e-01
Photon flux (15-150 keV) in 649.5 sec: 0.603886 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 2.33382e-05 ( -4.8654e-07 4.86865e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
-81.336000 93.320000
94.000000 154.610000
156.000000 231.950000
233.000000 320.050000
321.000000 420.750000
421.000000 572.504000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.55424 ( 1.55445 1.55445 )
beta : -2.08804 ( 2.08792 0.0503769 )
Epeak [keV] : 21.3884 ( -21.3575 11.3278 )
Norm@50keV : 9.44775E-03 ( -0.00455441 0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.88 using 59 PHA bins.
# Reduced chi-squared = 0.7979 for 55 degrees of freedom
# Null hypothesis probability = 8.591652e-01
Photon flux (15-150 keV) in 649.5 sec: 0.689975 ( 6.31002 -0.689975 ) 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] : 12.0886 ( )
R^2/D10^2 : 0.117126 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 580.37 using 59 PHA bins.
# Reduced chi-squared = 10.182 for 57 degrees of freedom
# Null hypothesis probability = 9.579058e-88
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.353e-06 9.905e-08
25- 50 7.468e-06 2.046e-07
50-150 6.594e-06 2.975e-07
15-150 1.641e-05 3.540e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 73.1799 (-5.14626 5.78514)
Norm : 2.72111 (-0.116799 0.123539)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.554e-06 1.572e-07
25- 50 7.332e-06 1.689e-07
50-150 9.728e-06 4.157e-07
15-150 2.161e-05 5.196e-07
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.30038 (-0.455335 0.476695)
R1^2/D10^2 : 1.15625 (-0.288398 0.416655)
kT2 [keV] : 22.5930 (-1.82664 2.24215)
R2^2/D10^2 : 7.93986E-03 (-0.00244248 0.00317814)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.716e-06 3.429e-07
25- 50 7.272e-06 2.468e-07
50-150 1.038e-05 6.527e-07
15-150 2.237e-05 8.996e-07
Peak spectrum fit
Power-law model
Time interval is from 368.468 sec. to 369.468 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.08164 ( -0.379466 0.449534 )
Norm@50keV : 6.38424E-03 ( -0.00186559 0.00174854 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.25 using 59 PHA bins.
# Reduced chi-squared = 1.162 for 57 degrees of freedom
# Null hypothesis probability = 1.881107e-01
Photon flux (15-150 keV) in 1 sec: 0.995400 ( -0.190337 0.190375 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.92154e-08 ( -1.47829e-08 1.55659e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 368.468 sec. to 369.468 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.98529 ( )
Epeak [keV] : 7.17307 ( )
Norm@50keV : 7.20162E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.26 using 59 PHA bins.
# Reduced chi-squared = 1.183 for 56 degrees of freedom
# Null hypothesis probability = 1.640081e-01
Photon flux (15-150 keV) in 1 sec: 0.995067 ( -0.189961 0.190003 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.91924e-08 ( -1.5773e-08 8.4992e-09 ) ergs/cm2
Band function
Time interval is from 368.468 sec. to 369.468 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -2.77084 ( 1.64499 2.77084 )
beta : -2.08164 ( -0.449533 0.380008 )
Epeak [keV] : 64.5429 ( -64.5429 -64.5429 )
Norm@50keV : 0.867708 ( -0.25356 0.237653 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.25 using 59 PHA bins.
# Reduced chi-squared = 1.204 for 55 degrees of freedom
# Null hypothesis probability = 1.424250e-01
Photon flux (15-150 keV) in 1 sec: 0.942132 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.55681e-08 ( 0 0 ) ergs/cm2
Single BB
XSPEC: quit
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.6749 (-2.74425 3.11009)
R^2/D10^2 : 0.354674 (-0.214686 0.7049)
(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 8.389e-09 3.410e-09
25- 50 2.281e-08 7.485e-09
50-150 1.434e-08 7.653e-09
15-150 4.554e-08 1.471e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 62.9558 (-28.484 75.3854)
Norm : 5.08556 (-1.38996 2.10861)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.288e-08 3.508e-09
25- 50 1.988e-08 6.285e-09
50-150 2.353e-08 1.401e-08
15-150 5.629e-08 1.987e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.85807 (-1.47147 1.85988)
R1^2/D10^2 : 72.9343 (-67.4699 20172.9)
kT2 [keV] : 14.8088 (-3.78161 6.01844)
R2^2/D10^2 : 8.99271E-02 (-0.066114 0.191166)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.416e-08 7.305e-09
25- 50 1.747e-08 9.891e-09
50-150 2.410e-08 1.548e-08
15-150 5.574e-08 3.031e-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: 2.08253 ( -0.0463482 0.0466012 )
Norm@50keV : 3.87438E-03 ( -8.51656e-05 8.48821e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.03 using 59 PHA bins.
# Reduced chi-squared = 0.7725 for 57 degrees of freedom
# Null hypothesis probability = 8.957351e-01
Photon flux (15-150 keV) in 649.5 sec: 0.604336 ( -0.0157345 0.0158603 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.33422e-05 ( -4.9022e-07 4.90502e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.99550 ( -0.096377 -1.9955 )
Epeak [keV] : 2.86827 ( -1.06894 28.6531 )
Norm@50keV : 4.23413E-03 ( -0.000203383 0.000206193 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.30 using 59 PHA bins.
# Reduced chi-squared = 0.8090 for 56 degrees of freedom
# Null hypothesis probability = 8.460111e-01
Photon flux (15-150 keV) in 649.5 sec: 0.603886 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 2.33382e-05 ( -4.8654e-07 4.86865e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.55424 ( 1.55445 1.55445 )
beta : -2.08804 ( 2.08792 0.0503769 )
Epeak [keV] : 21.3884 ( -21.3575 11.3278 )
Norm@50keV : 9.44775E-03 ( -0.00488864 1.40299e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.88 using 59 PHA bins.
# Reduced chi-squared = 0.7979 for 55 degrees of freedom
# Null hypothesis probability = 8.591652e-01
Photon flux (15-150 keV) in 649.5 sec: 0.689975 ( 6.31002 -0.689975 ) 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) = 7.19e-06
S(50-100 keV) = 6.79e-06
T90 vs. Hardness ratio plot
T90 = 483.479999899864 sec.
Hardness ratio (energy fluence ratio) = 0.944367
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.924407
Count Ratio (50-100 keV) / (15-25 keV) = 0.467468
Mask shadow pattern
IMX = -4.037865055845048E-04, IMY = -4.228675683715646E-04
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 -217.060000
-216.000000 -99.200000
-97.000000 -81.336000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3107 35.2521 8.8 33.6 -50.4 -0.7523 -1.3 9.0 Her X-1
263.0065 -24.7414 104.2 50.9 -145.0 0.1419 0.1 0.3 GX 1+4
268.2461 -1.5399 5.9 29.0 -130.1 -0.9619 -2.0 9.0 SW J1753.5-0127
270.1753 -25.1462 11.0 48.3 -152.8 0.9093 1.0 7.2 GX 5-1
270.2147 -25.7796 3.8 48.8 -153.2 2.7314 3.1 5.2 GRS 1758-258
273.9511 -14.0292 19.9 36.6 -151.3 0.3169 0.6 3.2 GX 17+2
276.0445 -30.3655 7.7 51.5 -161.5 1.6068 1.5 6.2 H1820-303
285.1411 -25.0660 9.4 45.0 -171.0 -0.9103 -1.2 10.4 HT1900.1-2455
288.8511 11.0401 3.7 8.8 -178.8 -1.1998 -3.1 6.5 GRS 1915+105
299.6125 35.2006 0.9 18.4 35.8 5.2992 12.5 1.1 Cyg X-1
307.9315 41.1178 0.0 27.1 38.9 0.3939 0.8 12.8 Cyg X-3
326.3377 38.2350 6.8 37.7 57.5 2.1660 1.7 9.4 Cyg X-2
320.0626 47.8573 2.5 38.0 40.1 4.2783 4.6 ------ UNKNOWN
288.2640 19.7693 0.3 0.0 148.9 14.0850 34.4 ------ UNKNOWN
266.7502 12.1891 2.7 22.0 -101.9 1.9984 4.3 ------ UNKNOWN
237.4070 36.5297 2.4 47.2 -53.0 9.3049 4.8 ------ UNKNOWN
238.9693 32.8692 2.9 45.6 -57.9 7.6839 4.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-81.336000 93.320000
94.000000 154.610000
156.000000 231.950000
233.000000 320.050000
321.000000 420.750000
421.000000 572.504000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6614 35.2730 0.0 33.3 -50.2 1.4530 1.1 10.8 Her X-1
263.0149 -24.7247 160.9 50.8 -145.0 -0.2232 -0.1 1.3 GX 1+4
268.2664 -1.5487 5.7 29.0 -130.1 2.1711 2.0 8.4 SW J1753.5-0127
270.1457 -25.0431 7.6 48.2 -152.7 -3.2718 -1.5 7.8 GX 5-1
270.1870 -25.7794 4.1 48.8 -153.2 -6.2038 -2.8 6.6 GRS 1758-258
273.9526 -14.0595 11.3 36.7 -151.3 -1.2581 -1.0 3.4 GX 17+2
275.8115 -30.3742 8.9 51.6 -161.2 3.1043 1.3 5.9 H1820-303
284.8918 -24.7764 0.0 44.7 -170.6 -0.6113 -0.4 11.7 HT1900.1-2455
288.8700 11.0776 3.2 8.7 -179.0 3.3863 3.7 9.0 GRS 1915+105
299.7435 35.0505 37.2 18.3 36.3 -0.3018 -0.3 11.8 Cyg X-1
308.0861 41.1005 5.0 27.2 39.1 -2.7496 -2.3 8.9 Cyg X-3
326.3627 38.3671 1411.8 37.8 57.3 0.0199 0.0 9.4 Cyg X-2
254.8228 24.9764 2.4 31.3 -69.2 6.9968 4.8 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
-10.000000 63.070000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.5458 35.5020 4.2 33.5 -49.9 0.7481 2.7 10.5 Her X-1
263.1356 -24.8003 5.7 50.8 -145.2 -1.1403 -2.0 7.6 GX 1+4
268.2437 -1.5535 13.6 29.0 -130.1 -0.2204 -0.9 9.6 SW J1753.5-0127
270.2833 -25.0805 364.0 48.2 -152.9 0.0137 0.0 0.1 GX 5-1
270.3025 -25.7431 9.0 48.8 -153.3 0.5821 1.3 0.0 GRS 1758-258
274.0657 -14.0328 6.1 36.6 -151.4 0.5136 1.9 3.5 GX 17+2
275.8408 -30.4363 6.7 51.6 -161.3 -0.9414 -1.7 6.0 H1820-303
285.1458 -24.8579 95.5 44.8 -170.9 -0.0461 -0.1 7.1 HT1900.1-2455
288.8076 10.7958 85.2 9.0 -178.5 0.0258 0.1 9.0 GRS 1915+105
299.6010 35.1995 1.0 18.4 35.8 2.3939 11.9 0.5 Cyg X-1
307.9315 41.1178 0.0 27.1 38.9 0.1684 0.6 12.8 Cyg X-3
325.9796 38.2700 45.6 37.4 57.3 0.1398 0.3 9.6 Cyg X-2
288.2625 19.7711 0.4 0.0 150.1 5.8150 30.2 ------ UNKNOWN
288.1977 -30.2927 2.7 50.1 -174.9 2.1923 4.3 ------ UNKNOWN
281.6264 -19.8695 2.3 40.2 -165.3 1.4106 5.1 ------ UNKNOWN
230.6662 53.8348 2.4 55.2 -32.3 5.2382 4.8 ------ UNKNOWN
254.7737 -15.0645 2.5 47.9 -129.1 4.2553 4.5 ------ UNKNOWN
239.0082 32.9330 2.5 45.6 -57.8 4.2654 4.5 ------ UNKNOWN
Plot creation:
Mon Oct 10 21:08:22 EDT 2022