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
237.5449 -2.3304 0.0025 28.3437 162.1724 10.7599069 76.298 TRIG_01247745
Foreground time interval of the image:
-9.216 10.549 (delta_t = 19.765 [sec])
Background time interval of the image:
-239.552 -9.216 (delta_t = 230.336 [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 -9.216 sec. to 179.904 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.15560 ( -0.0472237 0.0469504 )
Norm@50keV : 4.98747E-03 ( -0.000119502 0.000118853 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 59.64 using 59 bins.
Reduced chi-squared = 1.04632
# Null hypothesis probability of 3.80e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 189.1 sec: 0.582032 ( -0.015246 0.015305 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.69374e-06 ( -2.28938e-07 2.29e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -9.216 sec. to 179.904 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.15058 ( -0.0539238 0.0418699 )
Epeak [keV] : 1.00000E+04 ( -10000 -10000 )
Norm@50keV : 5.01207E-03 ( -0.000119492 0.00011371 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.05 using 59 bins.
Reduced chi-squared = 1.07232
# Null hypothesis probability of 3.31e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 189.1 sec: 0.581802 ( -0.015247 0.015306 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.76905e-06 ( -3.26396e-07 2.55856e-07 ) ergs/cm2
Band function
Time interval is from -9.216 sec. to 179.904 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] : 23.2716 ( )
R^2/D10^2 : 1.58878E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 512.26 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.94e-74 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.932e-07 1.513e-08
25- 50 1.601e-06 6.193e-08
50-150 6.474e-06 2.137e-07
15-150 8.368e-06 2.250e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 2.54001 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 329.46 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.50e-40 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.196e-06 3.082e-08
25- 50 2.301e-06 5.768e-08
50-150 5.046e-06 1.324e-07
15-150 8.543e-06 2.231e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.50188 (-0.651603 0.712171)
R1^2/D10^2 : 0.430780 (-0.119639 0.174849)
kT2 [keV] : 38.1039 (-3.08633 3.91878)
R2^2/D10^2 : 3.08021E-03 (-0.000764237 0.000893978)
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.04 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.27e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.999e-07 8.264e-08
25- 50 1.987e-06 9.587e-08
50-150 7.085e-06 3.158e-07
15-150 9.973e-06 3.905e-07
Peak spectrum fit
Power-law model
Time interval is from 2.668 sec. to 3.668 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.801546 ( -0.0628261 0.0622467 )
Norm@50keV : 0.111748 ( -0.00379384 0.00377676 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.51 using 59 bins.
Reduced chi-squared = 1.07912
# Null hypothesis probability of 3.18e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 12.8426 ( -0.4277 0.4281 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.30518e-06 ( -4.79927e-08 4.8045e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 2.668 sec. to 3.668 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.797627 ( -0.0665123 0.0598357 )
Epeak [keV] : 9999.34 ( -9999.36 -9999.36 )
Norm@50keV : 0.112487 ( -0.0037949 0.0132845 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.65 using 59 bins.
Reduced chi-squared = 1.10089
# Null hypothesis probability of 2.81e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.33454E-02 ( -0.0133454 0.142652 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.31226e-06 ( -5.55357e-08 4.04665e-08 ) ergs/cm2
Band function
Time interval is from 2.668 sec. to 3.668 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] : 25.7505 ( )
R^2/D10^2 : 0.294208 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 228.04 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.56e-22 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.336e-08 2.305e-09
25- 50 1.921e-07 9.500e-09
50-150 9.398e-07 5.370e-08
15-150 1.165e-06 5.050e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 ( )
Norm : 49.7539 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 442.53 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.89e-61 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.239e-07 4.250e-09
25- 50 2.383e-07 8.750e-09
50-150 5.227e-07 2.135e-08
15-150 8.849e-07 3.145e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 10.0869 (-1.50431 1.65067)
R1^2/D10^2 : 2.78171 (-0.927376 1.63255)
kT2 [keV] : 52.6128 (-9.65037 18.495)
R2^2/D10^2 : 3.54602E-02 (-0.018068 0.0253012)
------------------------------------------------------------
#Fit statistic : Chi-Squared 62.18 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.36e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.810e-08 7.815e-09
25- 50 2.207e-07 2.315e-08
50-150 1.043e-06 1.824e-07
15-150 1.332e-06 1.873e-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: 0.949668 ( -0.0358984 0.0357049 )
Norm@50keV : 3.56118E-02 ( -0.000687463 0.000683472 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.39 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.61e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 19.76 sec: 4.09141 ( -0.0804136 0.0807093 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.74965e-06 ( -1.44719e-07 1.44844e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.943069 ( -0.0397746 0.0339531 )
Epeak [keV] : 1.00000E+04 ( -10000 -10000 )
Norm@50keV : 3.58306E-02 ( -0.000687795 0.000635773 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.88 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.06e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 19.76 sec: 4.09048 ( -0.07929 0.07928 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.74685e-06 ( -1.40711e-07 1.51026e-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) = 1.99e-06
S(50-100 keV) = 3.56e-06
T90 vs. Hardness ratio plot
T90 = 69.4399999380112 sec.
Hardness ratio (energy fluence ratio) = 1.78894
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.39027
Count Ratio (50-100 keV) / (15-25 keV) = 1.34706
Mask shadow pattern
IMX = -5.135257878257191E-01, IMY = -1.651475167264640E-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:
-239.552000 -9.216000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9932 -15.6420 1.3 41.9 149.9 7.7117 8.8 0.8 Sco X-1
254.4102 35.3508 1.6 15.6 26.8 2.2159 7.2 2.4 Her X-1
268.1666 -1.4935 0.0 38.7 108.0 1.6449 1.4 12.3 SW J1753.5-0127
280.4376 13.0112 3.2 40.2 78.1 5.8967 3.7 ------ UNKNOWN
203.3100 3.7671 3.3 41.4 -138.8 1.9012 3.5 ------ UNKNOWN
192.6121 53.5399 3.3 44.4 -61.3 5.0678 3.5 ------ UNKNOWN
191.9810 56.2036 2.7 45.7 -57.9 6.0936 4.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-9.216000 10.548600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9793 -15.5977 6.4 41.8 149.9 -0.5333 -1.8 2.6 Sco X-1
254.4494 35.3432 182.0 15.7 26.9 -0.0088 -0.1 0.4 Her X-1
268.2129 -1.4764 137.3 38.7 108.0 -0.0370 -0.1 9.4 SW J1753.5-0127
237.5449 -2.3304 0.2 28.3 162.2 10.7600 76.3 ------ UNKNOWN
238.3135 10.7050 2.7 15.3 163.1 0.5348 4.2 ------ UNKNOWN
209.3943 -11.6910 2.7 47.9 -160.7 1.1290 4.4 ------ UNKNOWN
223.8353 69.6039 2.5 44.7 -30.6 1.0439 4.5 ------ UNKNOWN
192.9298 51.5720 3.4 43.6 -63.9 2.2216 3.4 ------ UNKNOWN
191.8908 60.1911 2.1 47.3 -52.9 2.8995 5.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
76.348600 962.502800
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0007 -15.6329 0.5 15.2 136.3 32.3403 25.3 1.3 Sco X-1
254.4868 35.3484 3.5 40.9 6.0 7.0272 3.2 1.5 Her X-1
256.0260 -37.8530 2.8 39.4 141.5 15.7629 4.1 1.9 4U 1700-377
256.2680 -36.4868 6.2 38.3 140.1 6.6634 1.9 8.9 GX 349+2
262.9889 -24.8689 18.6 33.3 119.5 1.7027 0.6 7.5 GX 1+4
264.7630 -44.3182 4.7 48.4 138.8 -14.1514 -2.4 8.0 4U 1735-44
268.5244 -1.4309 10.8 31.0 73.6 2.8372 1.1 9.5 SW J1753.5-0127
270.0925 -25.1974 0.0 38.8 113.8 9.5927 2.1 12.6 GX 5-1
270.2461 -25.7213 5.0 39.2 114.3 10.8085 2.3 3.3 GRS 1758-258
274.1603 -14.0501 5.3 38.0 94.8 8.6229 2.2 9.0 GX 17+2
262.8757 -33.9669 6.0 39.5 130.8 7.7474 1.9 9.7 GX 354-0
269.7160 -3.3753 2.9 32.1 77.4 10.9729 4.0 ------ UNKNOWN
Plot creation:
Sat Oct 19 18:19:39 EDT 2024