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
245.1116 -16.4246 0.0372 16.3 -92.6 -0.0103 -5.2 TRIG_01192745
------------------------------------------
Foreground time interval of the image:
55.024 55.040 (delta_t = 0.016 [sec])
Background time interval of the image:
-119.000 55.024 (delta_t = 174.024 [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
Time interval is from 55.024 sec. to 55.040 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.50000 ( -1.5 -1.5 )
Norm@50keV : 0.0 ( 0 0.00349569 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 28.92 using 59 PHA bins.
# Reduced chi-squared = 0.5074 for 57 degrees of freedom
# Null hypothesis probability = 9.992858e-01
Photon flux (15-150 keV) in 0.016 sec: 0.0 ( 0 1.56799 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 1.1703e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 55.024 sec. to 55.040 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 0.0 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 28.92 using 59 PHA bins.
# Reduced chi-squared = 0.5165 for 56 degrees of freedom
# Null hypothesis probability = 9.989781e-01
Photon flux (15-150 keV) in 0.016 sec: 0.0 ( 0 1.56779 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 1.31275e-09 ) ergs/cm2
Band function
Time interval is from 55.024 sec. to 55.040 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.31487 ( 0.98395 0.98395 )
beta : -9.37167 ( 2.5 2.5 )
Epeak [keV] : 0.741274 ( -80 -80 )
Norm@50keV : 1.49154E+04 ( -14914.4 9.47633e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 27.51 using 59 PHA bins.
# Reduced chi-squared = 0.5001 for 55 degrees of freedom
# Null hypothesis probability = 9.992917e-01
Photon flux (15-150 keV) in 0.016 sec: 0.0 ( ) 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] : 0.250880 (-5 -5)
R^2/D10^2 : 1.00401E+22 (-1.10855e+22 -1.10855e+22)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 25.26 using 59 PHA bins.
# Reduced chi-squared = 0.4432 for 57 degrees of freedom
# Null hypothesis probability = 9.999154e-01
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
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 0.246316 (-0.0253101 2.15509)
Norm : 4.62967E+22 (-5.61768e+22 -5.61768e+22)
------------------------------------------------------------
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
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 0.266258 (-0.214166 1.27814)
R1^2/D10^2 : 8.64069E+20 (-8.64054e+20 -8.64057e+20)
kT2 [keV] : 10.0000 (-10 -10)
R2^2/D10^2 : 0.0 (0 4.5488)
------------------------------------------------------------
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 54.534 sec. to 55.534 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 5.43097 ( -1.04684 1.37982 )
Norm@50keV : 3.50048E-04 ( -0.000349283 0.000679027 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 41.84 using 59 PHA bins.
# Reduced chi-squared = 0.7340 for 57 degrees of freedom
# Null hypothesis probability = 9.339957e-01
Photon flux (15-150 keV) in 1 sec: 0.819182 ( -0.212602 0.214463 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.54108e-08 ( -7.36591e-09 7.9443e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 54.534 sec. to 55.534 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 7.23325E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 82.76 using 59 PHA bins.
# Reduced chi-squared = 1.478 for 56 degrees of freedom
# Null hypothesis probability = 1.156622e-02
Photon flux (15-150 keV) in 1 sec: 0.851654 ( -0.206314 0.204276 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.48796e-08 ( -6.3012e-09 6.7013e-09 ) ergs/cm2
Band function
Time interval is from 54.534 sec. to 55.534 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 2.98701 ( 0.400964 0.400964 )
beta : -10.0000 ( 10 10 )
Epeak [keV] : 11.4375 ( -2.32312 5.23279 )
Norm@50keV : 5770.08 ( -5770.39 373681 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 40.12 using 59 PHA bins.
# Reduced chi-squared = 0.7294 for 55 degrees of freedom
# Null hypothesis probability = 9.340781e-01
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] : 2.61180 (-0.548785 0.673894)
R^2/D10^2 : 307.670 (-307.67 1402.51)
(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 2.306e-08 1.249e-08
25- 50 2.016e-09 1.279e-09
50-150 9.688e-13 1.188e-12
15-150 2.507e-08 1.378e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
XSPEC: quit
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 4.92984 (-1.51409 2.30191)
Norm : 204.095 (-204.093 670.167)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.241e-08 1.323e-08
25- 50 2.743e-09 1.682e-09
50-150 1.324e-11 1.539e-11
15-150 2.517e-08 1.422e-08
Double BB
XSPEC12>exit
XSPEC: quit
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.33463E-04 (8.94563 -0.000233463)
R1^2/D10^2 : 906.334 (-906.334 -906.334)
kT2 [keV] : 2.61180 (-0.54879 0.673889)
R2^2/D10^2 : 307.666 (-307.666 1402.51)
------------------------------------------------------------
Reduced chi-squared =
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.282e-08 1.073e-08
25- 50 2.374e-09 9.525e-10
50-150 2.266e-12 1.197e-13
15-150 2.520e-08 1.655e-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: 1.50000 ( -1.5 -1.5 )
Norm@50keV : 0.0 ( 0 0.00349569 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 28.92 using 59 PHA bins.
# Reduced chi-squared = 0.5074 for 57 degrees of freedom
# Null hypothesis probability = 9.992858e-01
Photon flux (15-150 keV) in 0.016 sec: 0.0 ( 0 1.56799 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 1.1703e-09 ) 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 : 0.0 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 28.92 using 59 PHA bins.
# Reduced chi-squared = 0.5165 for 56 degrees of freedom
# Null hypothesis probability = 9.989781e-01
Photon flux (15-150 keV) in 0.016 sec: 0.0 ( 0 1.56779 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 1.31275e-09 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.31487 ( 0.98395 0.98395 )
beta : -9.37167 ( 2.5 2.5 )
Epeak [keV] : 0.741274 ( -80 -80 )
Norm@50keV : 1.49154E+04 ( -14914.4 9.47633e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 27.51 using 59 PHA bins.
# Reduced chi-squared = 0.5001 for 55 degrees of freedom
# Null hypothesis probability = 9.992917e-01
Photon flux (15-150 keV) in 0.016 sec: 0.0 ( ) 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) = 0.00e+00
S(50-100 keV) = 0.00e+00
T90 vs. Hardness ratio plot
T90 = 0.0119998455047607 sec.
Hardness ratio (energy fluence ratio) =
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.469555
Count Ratio (50-100 keV) / (15-25 keV) = 1.0474
Mask shadow pattern
IMX = -1.315596446400004E-02, IMY = 2.919012534495107E-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:
-119.000000 55.024000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8418 -15.4803 0.0 16.6 -89.4 0.6784 1.4 12.5 Sco X-1
254.3696 35.3181 4.3 52.7 -9.6 -3.4415 -2.7 4.5 Her X-1
255.8138 -37.7878 11.6 21.6 -168.1 -0.4400 -1.0 8.9 4U 1700-377
256.5463 -36.2806 9.0 20.0 -168.5 -0.5765 -1.3 10.1 GX 349+2
263.1697 -24.8541 4.8 8.0 171.4 -1.0705 -2.4 10.9 GX 1+4
264.7086 -44.3002 8.0 27.5 174.3 -0.7261 -1.4 9.1 4U 1735-44
268.2233 -1.2995 0.0 16.7 20.0 0.6354 1.6 12.6 SW J1753.5-0127
270.3940 -25.2247 9.5 11.4 136.9 -0.5445 -1.2 10.6 GX 5-1
270.4253 -25.8881 12.7 11.9 139.1 0.3941 0.9 10.9 GRS 1758-258
273.8482 -13.9335 4.7 11.7 75.3 -1.1219 -2.5 11.1 GX 17+2
276.0865 -30.2120 201.1 18.5 137.1 -0.0260 -0.1 12.5 H1820-303
284.9889 -24.9312 7.1 22.8 112.8 1.0197 1.6 2.6 HT1900.1-2455
288.7575 10.8850 4.7 38.3 43.6 -2.6585 -2.4 4.4 GRS 1915+105
262.8147 -33.8827 6.0 17.0 176.3 0.7737 1.9 9.2 GX 354-0
293.2868 7.7803 2.6 39.5 52.1 4.9384 4.4 ------ UNKNOWN
265.7499 -61.8466 2.6 45.0 175.9 3.6376 4.4 ------ UNKNOWN
262.0532 -17.0295 0.5 0.2 -161.8 11.7789 24.1 ------ UNKNOWN
249.4994 -15.8532 2.7 12.1 -88.7 1.9631 4.2 ------ UNKNOWN
245.0513 -16.4211 0.4 16.3 -92.6 14.3804 29.0 ------ UNKNOWN
224.7255 -31.6821 2.4 36.9 -122.4 3.6385 4.9 ------ UNKNOWN
212.7905 -38.8413 3.1 48.1 -129.2 7.0565 3.7 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
55.024000 55.040000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8410 -15.7696 8.5 16.6 -90.4 -0.0027 -1.3 11.1 Sco X-1
254.5438 35.4675 3.6 52.8 -9.4 0.0214 3.2 8.6 Her X-1
255.9186 -37.7583 6.8 21.6 -168.3 0.0030 1.7 6.1 4U 1700-377
256.6164 -36.3553 11.0 20.1 -168.7 -0.0019 -1.0 9.6 GX 349+2
263.1014 -24.5975 6.4 7.8 171.6 -0.0031 -1.8 10.2 GX 1+4
264.9305 -44.4039 5.1 27.6 174.0 0.0044 2.3 8.5 4U 1735-44
268.4937 -1.3698 161.3 16.7 21.0 -0.0001 -0.1 9.0 SW J1753.5-0127
270.1907 -24.9330 10.6 11.0 136.5 -0.0019 -1.1 10.1 GX 5-1
270.3667 -25.8899 21.9 11.8 139.3 -0.0009 -0.5 9.5 GRS 1758-258
274.1554 -13.8864 0.0 12.0 75.5 0.0022 1.2 12.5 GX 17+2
275.8991 -30.4133 9.7 18.5 137.9 -0.0022 -1.2 3.1 H1820-303
285.2076 -25.0206 5.6 23.0 112.9 -0.0049 -2.1 11.1 HT1900.1-2455
288.7509 10.9216 5.4 38.3 43.6 0.0074 2.1 3.1 GRS 1915+105
263.1034 -33.8128 6.1 17.0 175.5 -0.0033 -1.9 5.8 GX 354-0
Post-slew image of 15-350 keV band
Time interval of the image:
123.700590 363.097600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9584 -15.5443 8.4 0.9 -11.8 -0.9103 -1.4 5.9 Sco X-1
254.3479 35.3633 8.1 52.6 2.6 -2.9263 -1.4 5.5 Her X-1
256.1386 -37.9404 9.6 23.6 150.8 -0.8127 -1.2 9.2 4U 1700-377
256.4633 -36.2760 7.4 22.3 148.2 -1.0221 -1.6 8.9 GX 349+2
263.1774 -24.6009 0.0 18.8 111.7 1.3037 1.7 12.6 GX 1+4
264.5996 -44.5112 4.5 32.6 146.7 -2.4848 -2.5 7.1 4U 1735-44
268.5062 -1.4373 4.2 27.6 52.5 -2.5034 -2.7 8.3 SW J1753.5-0127
270.4480 -25.0463 18.1 25.2 107.2 -0.6284 -0.6 9.1 GX 5-1
270.3421 -25.7656 30.2 25.3 108.9 0.3709 0.4 2.5 GRS 1758-258
274.0967 -14.1693 435.3 28.1 82.4 0.0293 0.0 9.6 GX 17+2
275.7627 -30.5240 0.0 31.4 115.3 -3.2513 -2.8 12.6 H1820-303
285.2053 -24.9681 12.9 38.4 102.7 1.5582 0.9 9.6 HT1900.1-2455
263.1662 -33.7327 13.6 23.8 133.1 -0.6570 -0.8 10.7 GX 354-0
272.4390 -49.1035 2.5 39.5 144.8 7.1707 4.6 ------ UNKNOWN
262.0537 -17.0534 0.5 16.3 87.7 16.6643 23.0 ------ UNKNOWN
251.4115 -12.2566 3.6 7.5 49.8 1.7754 3.3 ------ UNKNOWN
240.8604 -61.3537 2.2 45.0 175.9 6.0229 5.3 ------ UNKNOWN
244.9923 -16.4618 0.3 0.0 -123.5 21.2606 33.1 ------ UNKNOWN
186.0012 -55.7572 2.2 59.2 -152.8 18.1219 5.3 ------ UNKNOWN
187.5907 -51.3501 3.4 57.1 -148.1 10.6826 3.4 ------ UNKNOWN
196.2011 -32.0647 2.4 46.7 -125.8 12.3516 4.7 ------ UNKNOWN
UNKNOWN
UNKNOWN
Plot creation:
Wed Sep 27 12:53:34 EDT 2023