Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte
Image
Pre-slew 15.0-350.0 keV image (Event data)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
268.8597 -20.2976 0.0151 25.0192 174.4959 0.6073847 12.662 TRIG_01123129
Foreground time interval of the image:
-0.596 9.232 (delta_t = 9.828 [sec])
Background time interval of the image:
-239.584 -0.596 (delta_t = 238.988 [sec])
Lightcurves
Notes:
- 1) The mask-weighted light curves are using the flight position.
- 2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 3) 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.
- 4) 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.
- 5) 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 1.024000
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 1.024000
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 1.024000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Quad-rate summed light curves (from T0-300s to T0+1000s)
Spectral Evolution
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using 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.
Time averaged spectrum fit using the average DRM
Power-law model
Time interval is from -0.596 sec. to 9.232 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.01111 ( -0.242554 0.231952 )
Norm@50keV : 3.74857E-03 ( -0.000499596 0.000493992 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 78.22 using 59 bins.
Reduced chi-squared = 1.37228
# Null hypothesis probability of 3.26e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 9.828 sec: 0.431833 ( -0.058848 0.059314 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.96867e-07 ( -5.32105e-08 5.34462e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.596 sec. to 9.232 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.579030 ( -1.37204 0.540173 )
Epeak [keV] : 199.097 ( -199.054 -199.054 )
Norm@50keV : 5.67182E-03 ( -0.00265297 0.0136835 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 77.75 using 59 bins.
Reduced chi-squared = 1.38839
# Null hypothesis probability of 2.89e-02 with 56 degrees of freedom
Photon flux (15-150 keV) in 9.828 sec: 0.421540 ( -0.06505 0.064087 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.89534e-07 ( -5.78416e-08 5.64973e-08 ) ergs/cm2
Band function
Time interval is from -0.596 sec. to 9.232 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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] : 22.7857 (-3.36754 4.42445)
R^2/D10^2 : 1.37772E-02 (-0.0059118 0.00932469)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 82.35 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.57e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.280e-08 3.448e-09
25- 50 6.907e-08 1.483e-08
50-150 2.679e-07 6.064e-08
15-150 3.498e-07 7.219e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-30.091 -200)
Norm : 1.83023 (-0.243588 0.243588)
------------------------------------------------------------
#Fit statistic : Chi-Squared 93.58 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.62e-03 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.481e-08 2.561e-08
25- 50 8.619e-08 4.844e-08
50-150 1.890e-07 1.057e-07
15-150 3.200e-07 1.774e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.35310 (-1.72485 3.05908)
R1^2/D10^2 : 6.25250 (-5.9824 841.475)
kT2 [keV] : 25.0864 (-4.1512 6.14023)
R2^2/D10^2 : 9.82036E-03 (-0.00488463 0.00454989)
------------------------------------------------------------
#Fit statistic : Chi-Squared 75.16 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.68e-02 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.274e-08 1.616e-08
25- 50 6.456e-08 1.744e-08
50-150 2.792e-07 7.509e-08
15-150 3.765e-07 9.194e-08
Peak spectrum fit
Power-law model
Time interval is from 0.700 sec. to 1.700 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.03442 ( -0.334091 0.319007 )
Norm@50keV : 8.57900E-03 ( -0.00165601 0.00164623 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 72.26 using 59 bins.
Reduced chi-squared = 1.26772
# Null hypothesis probability of 8.38e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.989751 ( -0.194669 0.196099 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.16706e-08 ( -1.85095e-08 1.8689e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.700 sec. to 1.700 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.617696 ( -3.07286 1.65592 )
Epeak [keV] : 94.4081 ( -25.0056 2337.19 )
Norm@50keV : 4.19818E-02 ( -0.0420934 0.485421 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 69.40 using 59 bins.
Reduced chi-squared = 1.23929
# Null hypothesis probability of 1.08e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.911057 ( -0.218429 0.214003 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.53906e-08 ( -1.96263e-08 1.99947e-08 ) ergs/cm2
Band function
Time interval is from 0.700 sec. to 1.700 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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] : 21.6318 (-3.99379 5.53261)
R^2/D10^2 : 3.83945E-02 (-0.019952 0.0361848)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 69.49 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.24e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.350e-09 1.404e-09
25- 50 1.754e-08 5.998e-09
50-150 6.128e-08 2.214e-08
15-150 8.217e-08 2.693e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-55.5474 -200)
Norm : 4.10487 (-0.811149 0.811149)
------------------------------------------------------------
#Fit statistic : Chi-Squared 78.63 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.04e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.023e-08 6.060e-09
25- 50 1.967e-08 1.146e-08
50-150 4.315e-08 2.477e-08
15-150 7.305e-08 4.199e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.11363 (-4.27079 25.6409)
R1^2/D10^2 : 3.22949 (-3.20326 -3.20326)
kT2 [keV] : 23.2473 (-4.7976 -23.317)
R2^2/D10^2 : 2.93513E-02 (-0.0292099 0.0333029)
------------------------------------------------------------
#Fit statistic : Chi-Squared 67.94 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.13e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.218e-09 3.474e-09
25- 50 1.692e-08 9.212e-09
50-150 6.300e-08 3.597e-08
15-150 8.614e-08 4.800e-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: 1.01111 ( -0.242554 0.231952 )
Norm@50keV : 3.74857E-03 ( -0.000499596 0.000493992 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 78.22 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.26e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 9.828 sec: 0.431540 ( -0.0585417 0.0596341 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.96787e-07 ( -5.3156e-08 5.35775e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.579063 ( -1.37205 0.540162 )
Epeak [keV] : 199.106 ( -199.055 -199.055 )
Norm@50keV : 5.67165E-03 ( -0.00265267 0.0136835 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 77.75 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.89e-02 with 56 degrees of freedom
Photon flux (15-150 keV) in 9.828 sec: 0.421534 ( -0.065044 0.064206 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.89721e-07 ( -5.78751e-08 5.65513e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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) = 7.40e-08
S(50-100 keV) = 1.47e-07
T90 vs. Hardness ratio plot
T90 = 8.87999987602234 sec.
Hardness ratio (energy fluence ratio) = 1.98649
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.29641
Count Ratio (50-100 keV) / (15-25 keV) = 1.75727
Mask shadow pattern
IMX = -4.645637837252434E-01, IMY = -4.476556257540029E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
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:
-239.584000 -0.596000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9978 -15.6686 1.0 31.6 -137.4 6.5092 11.8 2.0 Sco X-1
254.6222 35.3622 5.9 33.6 -29.0 1.0734 2.0 8.1 Her X-1
255.9047 -37.9247 6.3 44.5 -171.5 1.4603 1.8 6.2 4U 1700-377
256.4306 -36.4304 4.4 42.9 -171.4 1.9832 2.7 0.5 GX 349+2
263.1550 -24.7327 4.7 30.1 -175.4 1.1967 2.5 8.0 GX 1+4
264.8427 -44.6110 0.0 49.5 177.5 1.3482 1.1 10.6 4U 1735-44
268.3951 -1.6069 505.2 6.4 -177.3 0.0089 0.0 9.4 SW J1753.5-0127
270.3352 -24.9473 19.3 29.7 171.6 0.3092 0.6 8.4 GX 5-1
270.3078 -25.6434 6.3 30.4 171.7 0.9904 1.8 6.0 GRS 1758-258
274.0511 -14.0340 2.6 19.3 159.6 1.9567 4.5 2.6 GX 17+2
276.0716 -30.3634 16.6 35.6 163.4 -0.4584 -0.7 7.6 H1820-303
284.8793 -24.9672 6.9 33.3 147.1 -1.1215 -1.7 9.0 HT1900.1-2455
288.6388 10.8973 16.0 20.0 64.0 0.3658 0.7 9.8 GRS 1915+105
299.5869 35.2059 1.6 41.3 31.6 5.8775 7.4 0.3 Cyg X-1
308.1963 40.9689 5.5 50.1 31.2 2.7774 2.1 4.0 Cyg X-3
262.8615 -33.7514 6.0 39.0 -178.1 -1.1944 -1.9 8.1 GX 354-0
303.9829 40.5874 3.1 47.4 29.0 3.2111 3.8 ------ UNKNOWN
277.7358 41.4926 2.2 37.5 3.4 3.0389 5.3 ------ UNKNOWN
260.0781 53.2567 2.9 49.1 -14.2 2.8579 3.9 ------ UNKNOWN
231.8826 41.9200 2.9 50.0 -43.1 6.9684 4.0 ------ UNKNOWN
229.6406 34.2168 2.9 47.2 -53.0 7.8967 4.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.596000 9.232000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0463 -15.7173 10.5 31.6 -137.5 0.0636 1.1 6.0 Sco X-1
254.6035 35.3815 12.9 33.6 -29.0 0.0498 0.9 7.5 Her X-1
256.1184 -37.8828 4.5 44.4 -171.7 -0.1904 -2.6 6.7 4U 1700-377
256.5713 -36.4327 8.3 42.9 -171.5 -0.0959 -1.4 6.6 GX 349+2
263.0264 -24.6915 55.1 30.1 -175.1 -0.0104 -0.2 3.4 GX 1+4
264.7134 -44.3998 5.2 49.3 177.6 -0.2284 -2.2 3.3 4U 1735-44
268.4003 -1.4182 4.5 6.2 -177.1 -0.1054 -2.6 2.8 SW J1753.5-0127
270.1178 -25.2148 0.0 29.9 172.0 0.0468 1.0 12.2 GX 5-1
270.4495 -25.7329 3.2 30.5 171.4 0.1714 3.6 8.0 GRS 1758-258
274.1492 -14.0724 14.5 19.4 159.3 -0.0359 -0.8 8.6 GX 17+2
275.7535 -30.5090 0.0 35.7 163.9 -0.0245 -0.4 12.3 H1820-303
285.0186 -24.8089 6.0 33.2 146.8 -0.1194 -1.9 6.8 HT1900.1-2455
288.7671 11.0968 57.9 20.2 63.6 0.0102 0.2 9.3 GRS 1915+105
299.5457 35.2484 14.0 41.3 31.6 -0.0723 -0.8 3.6 Cyg X-1
308.2098 40.7816 4.7 50.0 31.4 0.5281 2.5 11.2 Cyg X-3
262.8679 -33.7139 60.8 38.9 -178.1 -0.0120 -0.2 9.4 GX 354-0
268.8597 -20.2975 0.9 25.0 174.5 0.6075 12.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
73.916590 290.916590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9880 -15.6449 0.8 23.2 -83.4 6.9589 14.6 0.6 Sco X-1
254.4658 35.3044 11.6 57.3 -15.0 -1.4965 -1.0 2.3 Her X-1
256.0562 -37.7677 3.7 20.7 -151.3 1.2134 3.1 5.6 4U 1700-377
256.4181 -36.4745 3.4 19.5 -149.7 1.3322 3.4 3.2 GX 349+2
262.8431 -24.7636 6.2 7.1 -130.9 0.6834 1.9 9.1 GX 1+4
264.8960 -44.4631 8.5 24.4 -174.1 0.5879 1.4 6.6 4U 1735-44
268.5100 -1.4551 8.7 18.8 -2.2 0.5339 1.3 8.5 SW J1753.5-0127
270.3773 -25.1544 6.3 5.1 163.4 0.7782 2.0 6.8 GX 5-1
270.3351 -25.6769 5.2 5.5 165.3 1.0817 2.7 4.3 GRS 1758-258
273.9580 -13.9871 3.2 8.0 37.3 1.3878 3.6 4.1 GX 17+2
275.8021 -30.2714 12.2 11.8 148.3 0.3786 0.9 8.6 H1820-303
285.1884 -24.7757 14.9 15.7 108.6 -0.3674 -0.8 12.0 HT1900.1-2455
288.9193 11.0434 8.0 37.0 32.9 1.0512 1.4 9.2 GRS 1915+105
263.0438 -33.6882 14.0 14.4 -161.1 0.3176 0.8 9.2 GX 354-0
256.8735 -43.2844 3.1 25.1 -160.1 1.5451 3.7 ------ UNKNOWN
219.5852 -36.6327 2.1 45.7 -122.9 10.1443 5.6 ------ UNKNOWN
231.7984 7.1041 3.0 45.6 -57.9 7.4865 3.9 ------ UNKNOWN
Plot creation:
Wed Jun 14 14:00:42 EDT 2023