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
235.7358 -4.6909 0.0171 12.4925 142.7631 0.8429618 11.278 TRIG_00996184
Foreground time interval of the image:
-14.952 10.048 (delta_t = 25.000 [sec])
Background time interval of the image:
-76.851 -14.952 (delta_t = 61.899 [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 4.096000
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 4.096000
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 4.096000
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 -14.952 sec. to 10.048 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.34029 ( -0.28963 0.319281 )
Norm@50keV : 1.35040E-03 ( -0.000301326 0.00029765 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 36.52 using 59 bins.
Reduced chi-squared = 0.640702
# Null hypothesis probability of 9.84e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 25 sec: 0.241428 ( -0.033316 0.033318 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.252e-07 ( -5.66037e-08 5.95422e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -14.952 sec. to 10.048 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.66055 ( -1.98932 0.340553 )
Epeak [keV] : 17.4564 ( -17.0478 21.9505 )
Norm@50keV : 3.68445E-03 ( -0.00367896 0.0749882 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 35.78 using 59 bins.
Reduced chi-squared = 0.638929
# Null hypothesis probability of 9.84e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 25 sec: 0.235410 ( -0.034801 0.034426 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.97695e-07 ( -6.4075e-08 7.27383e-08 ) ergs/cm2
Band function
Time interval is from -14.952 sec. to 10.048 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] : 7.38062 (-1.0638 1.25964)
R^2/D10^2 : 0.362190 (-0.173125 0.329949)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 41.50 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.39e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.344e-08 2.316e-08
25- 50 1.264e-07 3.143e-08
50-150 2.526e-08 1.172e-08
15-150 2.351e-07 5.089e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 36.3419 (-11.1337 19.3193)
Norm : 1.65899 (-0.429339 0.626705)
------------------------------------------------------------
#Fit statistic : Chi-Squared 35.88 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.87e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.198e-08 1.692e-08
25- 50 1.159e-07 2.307e-08
50-150 8.046e-08 3.687e-08
15-150 2.883e-07 6.471e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.79313 (-3.15087 1.68563)
R1^2/D10^2 : 0.812962 (-0.492978 15.5608)
kT2 [keV] : 20.2159 (-19.9782 -20.2778)
R2^2/D10^2 : 3.32150E-03 (-0.00327385 0.162038)
------------------------------------------------------------
#Fit statistic : Chi-Squared 35.47 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.81e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.254e-08 4.921e-08
25- 50 1.121e-07 5.705e-08
50-150 1.054e-07 6.810e-08
15-150 3.101e-07 1.590e-07
Peak spectrum fit
Power-law model
Time interval is from 5.048 sec. to 6.048 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.84888 ( -0.535578 0.560654 )
Norm@50keV : 4.08014E-03 ( -0.00143951 0.00138061 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 67.13 using 59 bins.
Reduced chi-squared = 1.17772
# Null hypothesis probability of 1.69e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.573277 ( -0.164661 0.164742 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.75232e-08 ( -1.26025e-08 1.35073e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 5.048 sec. to 6.048 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -9.88469 ( )
Epeak [keV] : 27.6637 ( )
Norm@50keV : 1.15251E+06 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 66.13 using 59 bins.
Reduced chi-squared = 1.18089
# Null hypothesis probability of 1.67e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.572980 ( -0.23363 0.125046 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.08128e-08 ( -6.50608e-09 2.29636e-08 ) ergs/cm2
Band function
Time interval is from 5.048 sec. to 6.048 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] : 7.91776 (-1.87922 2.93983)
R^2/D10^2 : 0.681014 (-0.681078 1.35287)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 66.89 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.74e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.660e-09 4.589e-09
25- 50 1.317e-08 7.995e-09
50-150 3.342e-09 2.696e-09
15-150 2.417e-08 1.482e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 69.9503 (-41.7059 -69.9428)
Norm : 2.82461 (-1.07852 2.09008)
------------------------------------------------------------
#Fit statistic : Chi-Squared 67.17 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.68e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.246e-09 4.064e-09
25- 50 1.153e-08 7.155e-09
50-150 1.480e-08 1.209e-08
15-150 3.357e-08 2.148e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.04430 (-1.57391 2.58719)
R1^2/D10^2 : 1.00284 (-0.631833 2.02851)
kT2 [keV] : 199.355 (-0.0905633 -199.363)
R2^2/D10^2 : 8.19193E-05 (-5.41987e-05 0.00227054)
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.18 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.64e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.171e-09 4.836e-09
25- 50 1.193e-08 7.100e-09
50-150 2.429e-08 1.604e-08
15-150 4.439e-08 2.180e-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: 2.34029 ( -0.28963 0.319281 )
Norm@50keV : 1.35040E-03 ( -0.000301326 0.00029765 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 36.52 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.84e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 25 sec: 0.241400 ( -0.0333125 0.0333137 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.2513e-07 ( -5.65242e-08 5.95348e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.69486 ( -2.01867 0.325311 )
Epeak [keV] : 16.9586 ( -16.4453 29.6768 )
Norm@50keV : 3.47382E-03 ( -0.00363511 0.0752381 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 35.79 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.84e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 25 sec: 0.235334 ( -0.034778 0.035174 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.97717e-07 ( -6.40632e-08 7.79e-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) = 1.06e-07
S(50-100 keV) = 8.35e-08
T90 vs. Hardness ratio plot
T90 = 21 sec.
Hardness ratio (energy fluence ratio) = 0.787736
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.863391
Count Ratio (50-100 keV) / (15-25 keV) = 0.336054
Mask shadow pattern
IMX = -1.763911785378280E-01, IMY = -1.340674952411572E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000
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:
-76.851410 -14.952000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9918 -15.6330 0.4 26.6 148.3 4.7004 31.2 0.8 Sco X-1
254.3858 35.2366 6.1 41.0 47.8 0.5848 1.9 7.3 Her X-1
256.1341 -37.8892 6.2 49.8 161.0 -0.8724 -1.9 7.5 4U 1700-377
256.3502 -36.3886 6.0 48.8 159.5 0.8511 1.9 4.6 GX 349+2
263.0224 -24.6925 8.1 45.5 142.2 0.6253 1.4 3.3 GX 1+4
262.8367 -33.7486 0.0 50.7 152.2 2.5414 4.8 9.2 GX 354-0
266.5266 -1.8856 3.5 40.6 108.9 1.6818 3.3 ------ UNKNOWN
227.3369 40.7716 2.2 37.3 13.2 0.9109 5.2 ------ UNKNOWN
202.8535 37.4857 2.9 40.2 -17.3 0.7142 4.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-14.952000 10.048000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8276 -15.5318 8.2 26.4 148.4 0.1335 1.4 10.9 Sco X-1
254.6221 35.3562 5.1 41.3 47.9 0.4325 2.3 8.1 Her X-1
256.1282 -37.8684 29.5 49.8 160.9 0.1078 0.4 6.9 4U 1700-377
256.3523 -36.2948 5.8 48.7 159.4 -0.5169 -2.0 8.7 GX 349+2
263.1381 -24.6947 4.9 45.6 142.2 -0.6376 -2.4 7.7 GX 1+4
262.8915 -33.8482 4.7 50.8 152.2 0.9179 2.5 4.9 GX 354-0
235.7358 -4.6909 1.0 12.5 142.8 0.8430 11.3 ------ UNKNOWN
188.9075 23.5250 2.5 41.3 -45.6 0.6671 4.6 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
83.948600 962.147400
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9918 -15.6406 0.2 14.2 136.2 71.5038 63.9 0.7 Sco X-1
254.4559 35.3443 83.6 43.7 17.4 0.2720 0.1 0.1 Her X-1
255.9755 -37.9650 18.0 38.0 149.0 1.4666 0.6 7.3 4U 1700-377
256.5004 -36.4173 6.8 37.0 146.9 3.5596 1.7 3.2 GX 349+2
262.8481 -24.8399 6.8 32.9 125.7 3.7056 1.7 10.4 GX 1+4
264.5676 -44.6099 7.1 47.2 147.3 -7.7379 -1.6 12.2 4U 1735-44
268.2172 -1.4992 4.0 32.6 80.6 6.1159 2.9 9.5 SW J1753.5-0127
270.1717 -25.0710 9.6 38.8 120.4 4.4841 1.2 6.1 GX 5-1
270.2399 -25.7854 3.7 39.2 121.4 11.6959 3.1 4.2 GRS 1758-258
273.8530 -14.0077 90.9 38.7 101.8 -0.4412 -0.1 9.1 GX 17+2
262.8692 -33.7834 7.3 38.5 137.7 4.3904 1.6 6.7 GX 354-0
242.9397 -49.8830 2.3 45.6 168.7 13.5071 5.0 ------ UNKNOWN
246.0286 51.2740 3.6 56.6 2.9 16.1833 3.2 ------ UNKNOWN
219.4372 6.4017 3.5 19.7 -60.7 4.2208 3.3 ------ UNKNOWN
Plot creation:
Thu Oct 20 00:49:37 EDT 2022