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
271.4346 -47.0718 0.0045 11.1236 -102.8872 5.8564733 43.244 TRIG_01163119
Foreground time interval of the image:
-19.032 10.141 (delta_t = 29.173 [sec])
Background time interval of the image:
-239.560 -19.032 (delta_t = 220.528 [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 0.512000
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 0.512000
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 0.512000
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 -19.032 sec. to 12.656 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.20721 ( -0.0575156 0.057178 )
Norm@50keV : 1.19991E-02 ( -0.000373597 0.000373361 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.76 using 59 bins.
Reduced chi-squared = 1.06596
# Null hypothesis probability of 3.42e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 31.69 sec: 1.40991 ( -0.04689 0.04699 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.85046e-06 ( -1.26783e-07 1.26965e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -19.032 sec. to 12.656 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.954546 ( -0.237449 0.224134 )
Epeak [keV] : 236.028 ( -86.593 1336.06 )
Norm@50keV : 1.55316E-02 ( -0.00305268 0.00411167 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.06 using 59 bins.
Reduced chi-squared = 1.01893
# Null hypothesis probability of 4.35e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 31.69 sec: 1.38822 ( -0.05042 0.05053 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.79386e-06 ( -1.37476e-07 1.36858e-07 ) ergs/cm2
Band function
Time interval is from -19.032 sec. to 12.656 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] : 19.9764 ( )
R^2/D10^2 : 6.37864E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 223.26 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.57e-21 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.556e-07 9.713e-09
25- 50 7.743e-07 3.375e-08
50-150 2.290e-06 1.166e-07
15-150 3.220e-06 1.161e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 5.98880 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 167.16 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.35e-13 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.726e-07 1.585e-08
25- 50 9.091e-07 3.058e-08
50-150 1.994e-06 6.243e-08
15-150 3.375e-06 1.109e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.26821 (-1.13658 1.32849)
R1^2/D10^2 : 0.659255 (-0.236114 0.400825)
kT2 [keV] : 31.8622 (-3.67101 5.72633)
R2^2/D10^2 : 1.16243E-02 (-0.00491652 0.00611217)
------------------------------------------------------------
#Fit statistic : Chi-Squared 59.86 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.04e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.207e-07 3.538e-08
25- 50 8.455e-07 7.590e-08
50-150 2.630e-06 2.824e-07
15-150 3.796e-06 3.217e-07
Peak spectrum fit
Power-law model
Time interval is from 1.916 sec. to 2.916 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.882604 ( -0.0583161 0.0579588 )
Norm@50keV : 0.126293 ( -0.00427424 0.00426891 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 44.50 using 59 bins.
Reduced chi-squared = 0.780702
# Null hypothesis probability of 8.86e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 14.4943 ( -0.4903 0.4905 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.42718e-06 ( -5.2695e-08 5.27801e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 1.916 sec. to 2.916 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.426399 ( -0.253046 0.239198 )
Epeak [keV] : 205.690 ( -52.2545 152.253 )
Norm@50keV : 0.198264 ( -0.0407385 0.054197 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 33.39 using 59 bins.
Reduced chi-squared = 0.59625
# Null hypothesis probability of 9.93e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 14.2625 ( -0.504 0.5041 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.40365e-06 ( -5.53392e-08 5.51643e-08 ) ergs/cm2
Band function
Time interval is from 1.916 sec. to 2.916 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] : 23.8331 ( )
R^2/D10^2 : 0.423766 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 128.31 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.06e-07 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.286e-08 2.810e-09
25- 50 2.372e-07 1.200e-08
50-150 1.004e-06 5.345e-08
15-150 1.284e-06 4.900e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 56.4079 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 375.14 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.29e-48 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.405e-07 5.200e-09
25- 50 2.702e-07 1.015e-08
50-150 5.926e-07 2.080e-08
15-150 1.003e-06 3.550e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 9.16392 (-1.70664 2.05586)
R1^2/D10^2 : 3.46640 (-1.39938 2.79996)
kT2 [keV] : 34.9429 (-4.15323 6.95096)
R2^2/D10^2 : 0.114111 (-0.0504456 0.0590881)
------------------------------------------------------------
#Fit statistic : Chi-Squared 33.40 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.91e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.695e-08 1.458e-08
25- 50 2.541e-07 2.925e-08
50-150 1.083e-06 1.456e-07
15-150 1.414e-06 1.740e-07
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: 1.18359 ( -0.056725 0.0563775 )
Norm@50keV : 1.28059E-02 ( -0.000394911 0.000394597 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.35 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.92e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 29.17 sec: 1.49977 ( -0.0492359 0.0493529 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.80759e-06 ( -1.23717e-07 1.23905e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.908503 ( -0.235579 0.223096 )
Epeak [keV] : 228.333 ( -78.6749 626.768 )
Norm@50keV : 1.69177E-02 ( -0.00334219 0.00439188 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.87 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.06e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 29.17 sec: 1.47482 ( -0.05289 0.05298 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.75141e-06 ( -1.33657e-07 1.33044e-07 ) 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) = 8.11e-07
S(50-100 keV) = 1.41e-06
T90 vs. Hardness ratio plot
T90 = 14.135999917984 sec.
Hardness ratio (energy fluence ratio) = 1.73859
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.73515
Count Ratio (50-100 keV) / (15-25 keV) = 1.52643
Mask shadow pattern
IMX = -4.385245319988727E-02, IMY = 1.916666906535452E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
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:
-239.560000 -19.032000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.3117 -60.7271 7.2 48.8 16.9 1.3095 1.6 6.3 Cen X-3
186.6402 -62.7784 0.8 40.8 17.2 9.9118 14.9 0.7 GX 301-2
245.0115 -15.6296 0.8 31.7 137.5 11.1722 15.3 2.0 Sco X-1
255.9170 -37.8298 1.5 8.3 160.0 3.6203 7.9 3.4 4U 1700-377
256.3920 -36.3641 2.9 9.8 161.8 1.8304 4.0 4.1 GX 349+2
262.9524 -24.7249 14.2 22.3 175.2 0.3986 0.8 3.3 GX 1+4
264.5442 -44.5627 4.0 6.7 -123.9 1.4614 2.9 10.9 4U 1735-44
268.4548 -1.5198 4.9 46.1 175.0 2.7326 2.3 6.6 SW J1753.5-0127
270.1672 -24.9333 4.7 24.3 -169.0 1.1981 2.4 10.8 GX 5-1
270.1484 -25.7303 3.8 23.6 -168.2 1.4296 3.0 8.4 GRS 1758-258
274.1334 -14.0409 4.8 35.8 -171.1 1.4803 2.4 7.4 GX 17+2
275.7889 -30.3441 4.3 22.4 -151.1 1.3390 2.7 7.2 H1820-303
285.1819 -25.0885 0.0 31.8 -144.6 -0.3087 -0.4 12.8 HT1900.1-2455
263.0007 -33.7615 4.4 13.7 -175.3 1.1813 2.6 4.4 GX 354-0
92.7091 -79.0449 3.0 54.4 -19.5 6.0093 3.8 ------ UNKNOWN
300.6393 -9.5522 2.5 53.2 -142.2 11.0427 4.5 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-19.032000 10.140600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.3343 -60.5235 10.2 48.9 17.1 0.3352 1.1 6.0 Cen X-3
186.6159 -62.6726 7.3 40.8 17.3 0.3292 1.6 6.0 GX 301-2
244.9863 -15.6109 64.7 31.7 137.4 0.0312 0.2 1.8 Sco X-1
255.9801 -37.7941 5.4 8.4 160.4 -0.2571 -2.1 3.0 4U 1700-377
256.6777 -36.3415 0.0 9.9 163.1 0.1073 0.9 12.7 GX 349+2
263.0118 -24.7530 23.4 22.3 175.3 0.0650 0.5 0.5 GX 1+4
265.0026 -44.3503 0.0 7.1 -124.7 0.2001 1.6 12.6 4U 1735-44
268.4341 -1.5770 4.5 46.0 174.9 0.6766 2.5 8.5 SW J1753.5-0127
270.1770 -24.8968 0.0 24.4 -169.1 -0.3040 -2.4 12.4 GX 5-1
270.2956 -25.6254 4.5 23.8 -168.0 -0.3232 -2.5 7.1 GRS 1758-258
274.1304 -14.0567 3.7 35.8 -171.1 0.4875 3.1 7.4 GX 17+2
276.0655 -30.5142 5.3 22.5 -150.3 -0.2852 -2.2 11.4 H1820-303
285.1819 -25.0885 0.0 31.8 -144.6 0.1448 0.9 12.8 HT1900.1-2455
262.8586 -33.8502 12.3 13.6 -175.7 -0.1127 -0.9 6.6 GX 354-0
271.4346 -47.0718 0.3 11.1 -102.9 5.8565 43.2 ------ UNKNOWN
319.8662 -60.1545 2.4 39.3 -68.7 1.6667 4.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
53.740590 962.670000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
186.7151 -62.7739 1.1 47.2 33.2 28.3773 10.4 1.6 GX 301-2
244.9792 -15.6386 1.1 38.3 131.0 51.3601 10.2 0.1 Sco X-1
255.9387 -37.8727 4.8 14.7 118.1 5.0661 2.4 2.8 4U 1700-377
256.3643 -36.3823 4.5 15.5 123.1 5.2775 2.6 4.2 GX 349+2
262.9831 -24.7835 3.0 23.3 155.0 6.9211 3.9 2.7 GX 1+4
264.6776 -44.3825 7.8 5.5 112.0 2.5416 1.5 4.9 4U 1735-44
268.4694 -1.4888 5.4 45.7 170.6 10.8005 2.1 6.5 SW J1753.5-0127
270.2979 -25.1329 4.6 22.0 172.0 4.7554 2.5 3.3 GX 5-1
270.4499 -25.8149 6.0 21.3 172.3 3.6237 1.9 9.1 GRS 1758-258
274.0179 -13.8939 20.3 33.3 179.3 1.2494 0.6 8.6 GX 17+2
275.7653 -30.2103 0.0 17.2 -172.5 0.8392 0.5 12.5 H1820-303
284.8793 -24.8915 9.4 24.6 -154.8 -2.1586 -1.2 8.7 HT1900.1-2455
262.9889 -33.8359 535.8 14.7 146.0 -0.0400 -0.0 0.1 GX 354-0
159.0850 -75.7566 4.6 49.8 12.2 5.9140 2.5 ------ UNKNOWN
303.6772 -87.9541 2.4 41.2 -6.8 11.4011 4.8 ------ UNKNOWN
304.5169 -2.3033 2.7 53.1 -142.3 34.5433 4.2 ------ UNKNOWN
Plot creation:
Fri Jun 16 09:10:36 EDT 2023