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
319.7179 33.8497 0.0037 35.8712 -58.5337 57.3937193 51.874 TRIG_01056757
Foreground time interval of the image:
-0.248 9.005 (delta_t = 9.253 [sec])
Background time interval of the image:
-239.896 -0.248 (delta_t = 239.648 [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 0.064000
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 0.064000
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 0.064000
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 -0.248 sec. to 108.028 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.40355 ( -0.020889 0.0208045 )
Norm@50keV : 9.07475E-02 ( -0.00114518 0.00114274 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 48.97 using 59 bins.
Reduced chi-squared = 0.859123
# Null hypothesis probability of 7.66e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 108.3 sec: 11.0605 ( -0.1704 0.171 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.49071e-05 ( -1.06698e-06 1.06799e-06 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.248 sec. to 108.028 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.24995 ( -0.0874716 0.0860046 )
Epeak [keV] : 327.218 ( -92.98 309.678 )
Norm@50keV : 0.103561 ( -0.00725648 0.00789908 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 39.66 using 59 bins.
Reduced chi-squared = 0.708214
# Null hypothesis probability of 9.52e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 108.3 sec: 10.8864 ( -0.1924 0.1938 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.45167e-05 ( -1.08621e-06 1.08786e-06 ) ergs/cm2
Band function
Time interval is from -0.248 sec. to 108.028 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] : 22.5603 ( )
R^2/D10^2 : 0.305835 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 1602.06 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.68e-297 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.084e-06 8.068e-08
25- 50 1.655e-05 3.411e-07
50-150 6.293e-05 7.906e-07
15-150 8.256e-05 8.881e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 48.7908 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 427.19 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.99e-58 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.316e-05 1.895e-07
25- 50 2.531e-05 3.574e-07
50-150 5.551e-05 8.122e-07
15-150 9.398e-05 1.365e-06
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.98417 (-0.403196 0.417736)
R1^2/D10^2 : 4.44469 (-0.633011 0.763318)
kT2 [keV] : 34.3511 (-1.32305 1.50275)
R2^2/D10^2 : 5.99613E-02 (-0.00841226 0.00907762)
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.67 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.11e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.657e-06 3.991e-07
25- 50 2.316e-05 4.874e-07
50-150 6.181e-05 9.855e-07
15-150 9.362e-05 1.294e-06
Peak spectrum fit
Power-law model
Time interval is from 0.952 sec. to 1.952 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.957149 ( -0.031768 0.0316382 )
Norm@50keV : 1.00258 ( -0.0185298 0.0184969 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 64.15 using 59 bins.
Reduced chi-squared = 1.12544
# Null hypothesis probability of 2.40e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 115.212 ( -2.169 2.172 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.10118e-05 ( -2.02191e-07 2.02444e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.952 sec. to 1.952 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.662000 ( -0.135256 0.131535 )
Epeak [keV] : 286.165 ( -69.3822 170.702 )
Norm@50keV : 1.31820 ( -0.148166 0.171107 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.08 using 59 bins.
Reduced chi-squared = 0.876429
# Null hypothesis probability of 7.32e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 113.647 ( -2.256 2.261 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.08111e-06 ( -7.7876e-07 4.92324e-08 ) ergs/cm2
Band function
Time interval is from 0.952 sec. to 1.952 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] : 24.4644 ( )
R^2/D10^2 : 3.03337 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 465.48 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.03e-65 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.190e-07 1.155e-08
25- 50 1.789e-06 5.050e-08
50-150 7.964e-06 1.990e-07
15-150 1.007e-05 2.065e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 485.519 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 1066.01 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.86e-186 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.209e-06 2.350e-08
25- 50 2.326e-06 4.150e-08
50-150 5.101e-06 9.750e-08
15-150 8.635e-06 1.745e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 10.0530 (-0.889683 0.952184)
R1^2/D10^2 : 24.2260 (-5.23963 7.27499)
kT2 [keV] : 39.4050 (-3.06817 4.03655)
R2^2/D10^2 : 0.592918 (-0.154783 0.175513)
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.89 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.04e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.196e-07 4.670e-08
25- 50 2.067e-06 8.300e-08
50-150 8.314e-06 4.055e-07
15-150 1.100e-05 4.150e-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: 1.08600 ( -0.0227288 0.0226343 )
Norm@50keV : 0.431421 ( -0.0059654 0.00595272 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 78.86 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.92e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 9.253 sec: 49.9764 ( -0.740713 0.742133 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.19251e-05 ( -5.21685e-07 5.21868e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.802853 ( -0.0981401 0.0962711 )
Epeak [keV] : 280.956 ( -54.4645 106.159 )
Norm@50keV : 0.552391 ( -0.0436566 0.0481023 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 53.02 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.89e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 9.253 sec: 49.0810 ( -0.7853 0.7887 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.18066e-05 ( 0 0 ) 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) = 2.23e-05
S(50-100 keV) = 3.38e-05
T90 vs. Hardness ratio plot
T90 = 60.9119999408722 sec.
Hardness ratio (energy fluence ratio) = 1.5157
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.53007
Count Ratio (50-100 keV) / (15-25 keV) = 1.33608
Mask shadow pattern
IMX = 3.774619440631801E-01, IMY = 6.167769935940357E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000
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:
-239.896000 -0.248000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.5016 35.2476 2.8 32.3 -163.1 1.7075 4.1 6.1 Her X-1
268.3966 -1.6261 6.7 24.3 108.4 -0.7659 -1.7 10.6 SW J1753.5-0127
273.9626 -13.8567 5.9 32.4 85.6 1.1229 1.9 11.1 GX 17+2
288.8126 10.7755 7.9 7.5 30.9 0.4994 1.5 10.2 GRS 1915+105
299.5959 35.2074 0.5 22.8 -80.0 10.0701 22.9 0.4 Cyg X-1
308.3555 40.9993 0.0 31.7 -77.9 0.6653 1.1 11.5 Cyg X-3
326.2260 38.2866 8.6 42.3 -62.5 1.6918 1.3 3.3 Cyg X-2
306.8806 -26.7980 3.1 48.8 39.5 5.1542 3.8 ------ UNKNOWN
316.6802 -6.7934 2.8 39.7 10.4 2.4856 4.0 ------ UNKNOWN
238.9196 25.4099 2.8 43.1 175.8 2.6062 4.2 ------ UNKNOWN
331.6898 -0.4549 4.2 49.7 -8.0 1.9890 2.8 ------ UNKNOWN
332.1191 3.8539 2.5 48.6 -13.5 3.2962 4.6 ------ UNKNOWN
258.3931 43.4065 2.6 34.5 -147.8 1.9354 4.4 ------ UNKNOWN
292.2726 58.2696 2.9 41.8 -107.3 8.9845 3.9 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.248000 9.004590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6367 35.3166 6.0 32.3 -162.9 -1.0753 -1.9 8.9 Her X-1
268.3898 -1.6232 5.0 24.3 108.5 -1.1819 -2.3 10.3 SW J1753.5-0127
273.9283 -13.9143 8.4 32.5 85.6 0.9258 1.4 8.6 GX 17+2
288.7022 10.8372 10.6 7.4 31.4 0.5146 1.1 8.6 GRS 1915+105
299.5696 35.0370 30.8 22.6 -79.7 0.2376 0.4 9.9 Cyg X-1
308.3555 40.9993 0.0 31.7 -77.9 0.9816 1.1 11.5 Cyg X-3
326.0967 38.1692 6.4 42.2 -62.4 3.5359 1.8 9.8 Cyg X-2
305.0534 -25.4215 3.8 46.8 40.6 3.4628 3.0 ------ UNKNOWN
243.1466 -1.4976 4.3 44.6 136.2 3.6454 2.7 ------ UNKNOWN
270.0125 -4.2096 3.0 25.4 101.7 1.9960 3.9 ------ UNKNOWN
250.0497 10.8514 2.9 33.9 150.7 2.5225 4.0 ------ UNKNOWN
229.5116 34.7475 3.8 51.8 -172.3 3.6909 3.1 ------ UNKNOWN
227.2974 34.4871 3.0 53.6 -172.8 4.8685 3.8 ------ UNKNOWN
319.7179 33.8497 0.2 35.9 -58.5 57.3969 51.9 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
38.204590 55.804600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3357 35.2463 8.7 33.9 -150.5 -0.6044 -1.3 8.3 Her X-1
268.2157 -1.5721 0.0 25.1 125.6 -0.3913 -1.0 11.6 SW J1753.5-0127
274.0470 -14.1760 5.6 32.8 101.4 0.9265 2.1 8.7 GX 17+2
288.6741 10.9883 87.4 6.1 53.7 0.0380 0.1 7.8 GRS 1915+105
299.4099 35.1923 8.8 22.3 -70.2 0.4800 1.3 8.9 Cyg X-1
307.8941 40.8763 7.5 30.9 -66.9 -0.7523 -1.5 10.8 Cyg X-3
326.1685 38.2865 98.7 41.4 -50.2 0.0886 0.1 2.1 Cyg X-2
288.7415 -21.3944 3.6 37.9 75.5 2.7090 3.2 ------ UNKNOWN
315.3211 -20.4245 3.2 46.8 40.7 2.7632 3.6 ------ UNKNOWN
249.5255 -9.8007 4.4 44.6 136.2 2.7710 2.6 ------ UNKNOWN
340.0265 1.0121 2.8 55.4 0.2 4.2102 4.1 ------ UNKNOWN
276.7052 27.5197 2.5 14.0 -136.4 1.3115 4.6 ------ UNKNOWN
259.6173 30.1654 3.1 27.7 -155.9 1.0792 3.7 ------ UNKNOWN
272.6523 33.8877 3.4 21.2 -132.3 1.0314 3.4 ------ UNKNOWN
319.7067 33.8616 0.2 34.9 -46.6 29.4205 54.9 ------ UNKNOWN
Plot creation:
Sat Jul 30 06:57:48 EDT 2022