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
274.5659 31.7808 0.0107 21.6619 -39.3332 1.2496804 17.897 TRIG_01085430
Foreground time interval of the image:
-1.804 14.301 (delta_t = 16.105 [sec])
Background time interval of the image:
-138.899 -1.804 (delta_t = 137.095 [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 1.024000
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 1.024000
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 1.024000
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 -1.804 sec. to 848.544 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.77485 ( -0.272151 0.286875 )
Norm@50keV : 3.01610E-04 ( -5.51669e-05 5.32909e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 58.52 using 59 bins.
Reduced chi-squared = 1.02667
# Null hypothesis probability of 4.20e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 850.3 sec: 4.11650E-02 ( -0.0060319 0.0060318 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.36376e-06 ( -4.34136e-07 4.49064e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -1.804 sec. to 848.544 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.77877 ( -0.919922 0.71319 )
Epeak [keV] : 9996.16 ( -9999.23 -9999.24 )
Norm@50keV : 2.99797E-04 ( -0.000301624 0.000739153 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 58.52 using 59 bins.
Reduced chi-squared = 1.045
# Null hypothesis probability of 3.83e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 850.3 sec: 3.69056E-02 ( -0.0100465 0.0086929 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.36332e-06 ( -3.46007e-07 4.48988e-07 ) ergs/cm2
Band function
Time interval is from -1.804 sec. to 848.544 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] : 9.41771 (-1.68227 2.25789)
R^2/D10^2 : 2.36614E-02 (-0.0130359 0.026288)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 72.16 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.51e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.550e-07 1.040e-07
25- 50 8.089e-07 1.804e-07
50-150 3.539e-07 1.541e-07
15-150 1.518e-06 3.422e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 99.9614 (-45.2688 -101.245)
Norm : 0.181471 (-0.0312132 0.0472759)
------------------------------------------------------------
#Fit statistic : Chi-Squared 59.56 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.83e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.033e-07 8.248e-08
25- 50 6.973e-07 1.630e-07
50-150 1.130e-06 6.887e-07
15-150 2.230e-06 8.197e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.71417 (-1.64943 1.88777)
R1^2/D10^2 : 7.05929E-02 (-0.0416596 0.0675471)
kT2 [keV] : 38.1611 (-18.191 -38.1644)
R2^2/D10^2 : 1.35021E-04 (-0.000127763 0.00094164)
------------------------------------------------------------
#Fit statistic : Chi-Squared 55.83 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.43e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.377e-07 1.944e-07
25- 50 6.741e-07 3.078e-07
50-150 1.426e-06 8.553e-07
15-150 2.538e-06 1.245e-06
Peak spectrum fit
Power-law model
Time interval is from 0.988 sec. to 1.988 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.53287 ( -0.240277 0.24406 )
Norm@50keV : 1.22489E-02 ( -0.00190974 0.00188839 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 89.18 using 59 bins.
Reduced chi-squared = 1.56456
# Null hypothesis probability of 4.12e-03 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.54311 ( -0.22766 0.22781 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.15617e-07 ( -1.94425e-08 1.97959e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.988 sec. to 1.988 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.450858 ( -1.485 1.12 )
Epeak [keV] : 63.6572 ( -16.8746 -63.5633 )
Norm@50keV : 4.87912E-02 ( -0.0490723 0.272947 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 86.51 using 59 bins.
Reduced chi-squared = 1.54482
# Null hypothesis probability of 5.52e-03 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.48928 ( -0.23532 0.23537 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.03727e-07 ( -2.13435e-08 2.31988e-08 ) ergs/cm2
Band function
Time interval is from 0.988 sec. to 1.988 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] : 13.0001 (-1.9969 2.4315)
R^2/D10^2 : 0.299072 (-0.138156 0.245378)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 90.90 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.88e-03 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.072e-08 3.302e-09
25- 50 3.692e-08 8.130e-09
50-150 3.945e-08 1.402e-08
15-150 8.709e-08 1.915e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 183.104 (-90.0911 -181.958)
Norm : 6.36418 (-0.949541 1.12728)
------------------------------------------------------------
#Fit statistic : Chi-Squared 87.79 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.48e-03 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.602e-08 9.000e-09
25- 50 3.050e-08 1.700e-08
50-150 6.497e-08 3.621e-08
15-150 1.115e-07 6.190e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 11.0295 (-6.95212 2.3086)
R1^2/D10^2 : 0.484160 (-0.238056 5.88438)
kT2 [keV] : 199.363 (-199.363 -199.363)
R2^2/D10^2 : 1.26788E-04 (-7.75088e-05 0.198837)
------------------------------------------------------------
#Fit statistic : Chi-Squared 85.27 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.52e-03 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.464e-08 8.380e-09
25- 50 3.347e-08 1.789e-08
50-150 5.504e-08 3.162e-08
15-150 1.031e-07 5.505e-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: 1.66500 ( -0.156251 0.15926 )
Norm@50keV : 4.71933E-03 ( -0.000459044 0.000452774 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.64 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.51e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 16.1 sec: 0.619310 ( -0.0540011 0.0540201 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.05626e-07 ( -7.27374e-08 7.38162e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.51890 ( -0.648527 0.558745 )
Epeak [keV] : 147.003 ( -147.335 -147.335 )
Norm@50keV : 5.68972E-03 ( -0.00112842 0.00719695 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.46 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.21e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 16.1 sec: 0.615414 ( -0.056159 0.055879 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.94129e-07 ( -8.6523e-08 8.28812e-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) = 6.59e-07
S(50-100 keV) = 7.70e-07
T90 vs. Hardness ratio plot
T90 = 643.68799996376 sec.
Hardness ratio (energy fluence ratio) = 1.16844
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.1562
Count Ratio (50-100 keV) / (15-25 keV) = 0.561813
Mask shadow pattern
IMX = 3.072063213645213E-01, IMY = 2.517427789715487E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
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:
-138.899400 -1.804000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3908 35.3566 111.5 38.7 -34.9 -0.0354 -0.1 3.4 Her X-1
268.3190 -1.6277 0.0 40.6 -98.3 -2.4650 -2.6 10.9 SW J1753.5-0127
288.6311 10.9207 8.6 18.2 -116.0 -0.2974 -1.3 10.0 GRS 1915+105
299.6000 35.2156 0.5 8.8 35.8 4.8820 24.3 1.0 Cyg X-1
307.8449 41.0216 0.0 16.4 56.0 0.4799 2.0 12.7 Cyg X-3
325.9394 38.4114 0.0 25.8 86.4 0.7595 2.6 12.2 Cyg X-2
333.8360 68.7835 3.2 47.1 47.3 3.4401 3.6 ------ UNKNOWN
340.8599 -8.2613 2.7 53.7 155.2 5.0604 4.3 ------ UNKNOWN
310.6797 68.0138 2.5 42.2 37.4 2.1299 4.6 ------ UNKNOWN
297.2286 66.2692 3.0 39.8 29.9 1.3977 3.8 ------ UNKNOWN
240.8950 68.3309 2.2 53.8 8.0 4.6756 5.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-1.804000 14.300600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6292 35.3098 4.7 38.5 -34.9 -0.2558 -2.5 8.6 Her X-1
268.2370 -1.5286 5.9 40.6 -98.1 -0.5605 -1.9 9.1 SW J1753.5-0127
288.9860 10.9418 4.0 18.0 -117.0 0.1994 2.9 11.1 GRS 1915+105
299.4918 35.0455 3.9 8.6 35.3 0.1864 3.0 10.5 Cyg X-1
308.3752 40.8832 0.0 16.5 57.5 0.0103 0.1 12.7 Cyg X-3
326.1726 38.1819 4.6 25.9 87.0 -0.2467 -2.5 8.4 Cyg X-2
274.5659 31.7808 0.6 21.7 -39.3 1.2494 17.9 ------ UNKNOWN
254.8956 27.3415 1.7 38.8 -47.7 0.8172 6.9 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
62.300600 830.200600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3123 35.4261 23.7 17.2 -13.4 -0.4180 -0.5 8.7 Her X-1
268.3800 -1.2942 16.6 33.6 -109.9 1.3634 0.7 9.5 SW J1753.5-0127
288.8353 10.7530 0.0 24.8 -156.4 -0.6929 -0.7 11.8 GRS 1915+105
299.6102 35.2040 0.4 21.1 132.7 26.6454 29.9 1.0 Cyg X-1
307.9239 40.8992 15.5 28.2 120.6 0.8306 0.7 9.0 Cyg X-3
326.1852 38.2376 6.5 42.2 125.3 5.1019 1.8 5.1 Cyg X-2
244.2022 59.6415 3.3 34.4 32.0 4.4453 3.5 ------ UNKNOWN
201.5822 52.4537 2.8 55.3 13.7 22.0409 4.1 ------ UNKNOWN
303.5739 16.7315 3.1 30.3 171.8 3.6649 3.7 ------ UNKNOWN
297.0950 11.5673 3.1 29.0 -172.0 3.2437 3.7 ------ UNKNOWN
235.9005 29.3703 2.0 33.2 -25.0 5.6395 5.7 ------ UNKNOWN
289.0285 0.4311 2.6 34.2 -147.5 4.5006 4.4 ------ UNKNOWN
241.9174 12.1119 2.4 35.9 -57.0 6.4055 4.8 ------ UNKNOWN
280.7647 -15.7984 3.6 48.0 -129.2 13.9108 3.2 ------ UNKNOWN
234.0044 5.8256 2.8 45.9 -56.9 17.8327 4.2 ------ UNKNOWN
Plot creation:
Mon Oct 24 05:15:33 EDT 2022