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
275.9207 -56.2570 0.0173 35.1877 6.0119 3.0882933 11.063 TRIG_01104343
Foreground time interval of the image:
3.092 68.920 (delta_t = 65.828 [sec])
Background time interval of the image:
-19.099 3.092 (delta_t = 22.191 [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
8 ms binning
From T100_start-3 s to T100_start+3 s
2 ms binning
From T100_start-1 s to T100_start+1 s
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 3.092 sec. to 68.920 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.22574 ( -0.132221 0.129973 )
Norm@50keV : 3.13265E-03 ( -0.000226373 0.000225789 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 58.25 using 59 bins.
Reduced chi-squared = 1.02193
# Null hypothesis probability of 4.29e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 65.83 sec: 0.369099 ( -0.028478 0.028652 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.07756e-06 ( -1.57594e-07 1.58243e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 3.092 sec. to 68.920 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.14295 ( -0.526285 0.20013 )
Epeak [keV] : 562.179 ( -595.585 -595.585 )
Norm@50keV : 3.41696E-03 ( -0.000460652 0.00239945 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 58.18 using 59 bins.
Reduced chi-squared = 1.03893
# Null hypothesis probability of 3.95e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 65.83 sec: 0.367530 ( -0.02995 0.015078 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.0683e-06 ( -1.68255e-07 1.60001e-07 ) ergs/cm2
Band function
Time interval is from 3.092 sec. to 68.920 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] : 19.5054 (-1.90868 2.20865)
R^2/D10^2 : 1.79024E-02 (-0.00538985 0.00745119)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 98.86 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.91e-04 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.728e-08 1.287e-08
25- 50 4.275e-07 5.039e-08
50-150 1.201e-06 1.448e-07
15-150 1.716e-06 1.550e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-16.0541 -200)
Norm : 1.56779 (-0.11416 0.11416)
------------------------------------------------------------
#Fit statistic : Chi-Squared 77.34 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.77e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.569e-07 2.251e-08
25- 50 4.943e-07 5.141e-08
50-150 1.084e-06 3.499e-07
15-150 1.835e-06 3.502e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 9.50175 (-2.1075 2.42492)
R1^2/D10^2 : 0.129634 (-0.0630509 0.151681)
kT2 [keV] : 41.5347 (-11.8423 42.0032)
R2^2/D10^2 : 1.29459E-03 (-0.00106287 0.00246571)
------------------------------------------------------------
#Fit statistic : Chi-Squared 56.96 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.02e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.723e-07 5.036e-08
25- 50 4.826e-07 1.587e-07
50-150 1.433e-06 6.517e-07
15-150 2.088e-06 7.970e-07
Peak spectrum fit
Power-law model
Time interval is from 7.816 sec. to 8.816 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.15944 ( -0.164491 0.16114 )
Norm@50keV : 2.52842E-02 ( -0.00229358 0.0022872 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.96 using 59 bins.
Reduced chi-squared = 1.10456
# Null hypothesis probability of 2.74e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 2.95203 ( -0.27975 0.2809 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.59579e-07 ( -2.52047e-08 2.53588e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 7.816 sec. to 8.816 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.15725 ( -0.167694 0.160127 )
Epeak [keV] : 9999.33 ( -9999.36 -9999.36 )
Norm@50keV : 2.53984E-02 ( -0.00228603 0.0195473 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.96 using 59 bins.
Reduced chi-squared = 1.12429
# Null hypothesis probability of 2.44e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 2.95631 ( -0.29328 0.28404 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.82789e-07 ( 0 0 ) ergs/cm2
Band function
Time interval is from 7.816 sec. to 8.816 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] : 19.2839 (-2.37714 2.89026)
R^2/D10^2 : 0.152327 (-0.056185 0.0840104)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 92.19 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.18e-03 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.107e-08 2.147e-09
25- 50 5.382e-08 7.730e-09
50-150 1.475e-07 2.400e-08
15-150 2.124e-07 2.675e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-21.1068 -200)
Norm : 12.3688 (-1.14226 1.14226)
------------------------------------------------------------
#Fit statistic : Chi-Squared 80.30 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.27e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.079e-08 1.209e-08
25- 50 5.923e-08 2.250e-08
50-150 1.299e-07 5.836e-08
15-150 2.199e-07 6.705e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 10.8352 (-2.36488 2.57856)
R1^2/D10^2 : 0.754783 (-0.350872 0.570042)
kT2 [keV] : 73.6114 (-41.147 -78.6351)
R2^2/D10^2 : 2.67107E-03 (-0.00164921 0.012402)
------------------------------------------------------------
#Fit statistic : Chi-Squared 59.25 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.23e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.961e-08 6.309e-09
25- 50 6.012e-08 1.972e-08
50-150 1.822e-07 8.943e-08
15-150 2.619e-07 1.094e-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: 1.22574 ( -0.132221 0.129973 )
Norm@50keV : 3.13265E-03 ( -0.000226373 0.000225789 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 58.25 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.29e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 65.83 sec: 0.369096 ( -0.0284764 0.0286505 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.07732e-06 ( -1.57725e-07 1.5845e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.09317 ( -0.536888 0.14785 )
Epeak [keV] : 356.737 ( -588.676 -588.676 )
Norm@50keV : 3.59964E-03 ( -0.000461183 0.00239878 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 58.29 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.91e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 65.83 sec: 0.367499 ( -0.029841 0.022512 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.06919e-06 ( -1.68637e-07 1.64726e-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) = 4.43e-07
S(50-100 keV) = 7.57e-07
T90 vs. Hardness ratio plot
T90 = 57.2159999608994 sec.
Hardness ratio (energy fluence ratio) = 1.7088
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.70369
Count Ratio (50-100 keV) / (15-25 keV) = 1.54134
Mask shadow pattern
IMX = 7.012238590859576E-01, IMY = -7.384899981152744E-02
TIME vs. PHA plot around the trigger time
TIME vs. DetID plot around the trigger time
100 us light curve (15-350 keV)
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:
-19.099400 3.092000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9489 -15.6606 2.1 32.2 97.6 0.7495 5.5 2.1 Sco X-1
255.8031 -37.8545 2.6 25.7 48.0 0.3979 4.4 8.7 4U 1700-377
256.5670 -36.2971 6.2 24.4 50.3 -0.1585 -1.9 9.9 GX 349+2
262.8950 -24.8857 6.1 14.8 75.9 0.1392 1.9 10.5 GX 1+4
264.7478 -44.4472 218.4 25.9 26.3 -0.0044 -0.1 0.3 4U 1735-44
268.4909 -1.5543 7.5 21.8 155.9 -0.1100 -1.5 9.6 SW J1753.5-0127
270.1203 -25.2072 7.5 8.7 63.9 0.1031 1.5 11.8 GX 5-1
270.4705 -25.8915 0.0 8.7 58.9 -0.0209 -0.3 12.7 GRS 1758-258
273.8930 -13.9161 3.1 8.4 151.8 0.2198 3.7 9.8 GX 17+2
275.8492 -30.2333 26.1 9.4 17.4 0.0299 0.4 8.9 H1820-303
285.0389 -24.9116 716.9 7.2 -53.2 -0.0010 -0.0 0.6 HT1900.1-2455
288.8870 10.8005 83.0 33.5 -157.6 0.0120 0.1 10.2 GRS 1915+105
262.8067 -33.9671 0.0 18.9 47.3 0.0635 0.9 12.1 GX 354-0
236.1256 -68.9493 2.4 54.3 20.9 1.6813 4.8 ------ UNKNOWN
255.1361 -14.5412 2.6 23.1 106.3 0.4024 4.5 ------ UNKNOWN
264.6707 -74.3191 2.4 53.7 8.2 1.1564 4.9 ------ UNKNOWN
292.2342 -46.5408 2.6 27.8 -17.0 0.3082 4.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
3.092000 68.920000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0498 -15.5191 12.2 32.1 97.9 -0.3862 -0.9 8.3 Sco X-1
255.8055 -37.8322 3.7 25.7 48.1 -0.8226 -3.1 8.6 4U 1700-377
256.5631 -36.3194 6.4 24.4 50.3 0.4629 1.8 8.8 GX 349+2
262.8737 -24.8847 5.8 14.8 75.9 -0.4568 -2.0 11.1 GX 1+4
264.5485 -44.4794 4.5 26.0 26.6 -0.6280 -2.6 8.5 4U 1735-44
268.5090 -1.5778 4.6 21.8 155.9 0.5453 2.5 11.3 SW J1753.5-0127
270.1184 -25.0281 8.4 8.6 64.9 -0.2777 -1.4 9.5 GX 5-1
270.2692 -25.8917 8.3 8.9 59.5 0.2818 1.4 9.1 GRS 1758-258
273.8474 -13.8938 25.2 8.4 151.6 -0.0855 -0.5 12.6 GX 17+2
276.0906 -30.2558 13.6 9.4 16.1 -0.1660 -0.8 10.9 H1820-303
285.1904 -24.8219 7.1 7.2 -54.3 0.3090 1.6 10.3 HT1900.1-2455
288.6487 11.0591 6.1 33.7 -158.1 0.4495 1.9 11.1 GRS 1915+105
262.8081 -33.9361 18.3 18.8 47.4 -0.1369 -0.6 10.9 GX 354-0
275.9207 -56.2570 1.0 35.2 6.0 3.0867 11.1 ------ UNKNOWN
305.1157 5.5474 2.1 37.4 -129.0 1.8964 5.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
161.100600 963.101000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.2922 -60.6307 6.1 49.3 21.6 3.6533 1.9 0.8 Cen X-3
186.9152 -62.8911 0.0 41.8 26.1 1.5827 0.8 10.1 GX 301-2
255.9548 -37.8073 1.9 22.7 118.9 9.0169 5.9 2.7 4U 1700-377
256.5554 -36.5431 16.6 23.6 121.5 1.0777 0.7 9.2 GX 349+2
262.8377 -24.7413 42.0 32.9 140.9 0.5306 0.3 9.3 GX 1+4
264.8404 -44.6443 0.0 13.5 127.5 -0.4322 -0.4 12.4 4U 1735-44
270.2222 -24.9234 6.4 31.6 153.3 3.2366 1.8 9.9 GX 5-1
270.4590 -25.7552 22.8 30.8 153.5 -0.8732 -0.5 8.5 GRS 1758-258
274.0084 -14.0434 6.4 42.2 160.4 5.1824 1.8 0.4 GX 17+2
275.8059 -30.3744 3.4 25.9 162.9 4.5425 3.4 6.2 H1820-303
285.1536 -25.0399 4.2 31.9 179.1 -4.1283 -2.7 9.6 HT1900.1-2455
263.1549 -33.8817 8.3 24.0 136.4 2.1333 1.4 8.7 GX 354-0
Plot creation:
Mon Oct 24 05:00:56 EDT 2022