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
61.7597 -59.9012 0.0076 39.8783 136.3441 4.9033566 25.295 TRIG_00994143
Foreground time interval of the image:
-4.432 26.912 (delta_t = 31.344 [sec])
Background time interval of the image:
-239.120 -4.432 (delta_t = 234.688 [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 -4.432 sec. to 26.912 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.70546 ( -0.10611 0.107089 )
Norm@50keV : 1.00087E-02 ( -0.000617933 0.000614828 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.72 using 59 bins.
Reduced chi-squared = 0.96
# Null hypothesis probability of 5.61e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 31.34 sec: 1.33187 ( -0.08229 0.08246 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.90341e-06 ( -1.86542e-07 1.87516e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -4.432 sec. to 26.912 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.61900 ( -0.407868 0.392754 )
Epeak [keV] : 216.278 ( -141.626 -216.296 )
Norm@50keV : 1.10900E-02 ( -0.00248063 0.00666712 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.57 using 59 bins.
Reduced chi-squared = 0.974464
# Null hypothesis probability of 5.29e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 31.34 sec: 1.32625 ( -0.08583 0.08502 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.11519e-06 ( -2.48983e-07 2.19233e-07 ) ergs/cm2
Band function
Time interval is from -4.432 sec. to 26.912 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] : 13.2846 ( )
R^2/D10^2 : 0.216764 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 138.43 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.00e-08 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.541e-07 2.819e-08
25- 50 8.957e-07 6.801e-08
50-150 1.012e-06 1.260e-07
15-150 2.162e-06 1.724e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 142.446 (-35.2557 49.0844)
Norm : 5.45688 (-0.392742 0.491755)
------------------------------------------------------------
#Fit statistic : Chi-Squared 56.45 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.96e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.410e-07 3.792e-08
25- 50 8.113e-07 8.603e-08
50-150 1.567e-06 5.206e-07
15-150 2.819e-06 6.041e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.78474 (-1.03791 1.17057)
R1^2/D10^2 : 1.83689 (-0.779973 1.525)
kT2 [keV] : 27.1224 (-4.94541 8.31076)
R2^2/D10^2 : 1.26466E-02 (-0.00753216 0.0138481)
------------------------------------------------------------
#Fit statistic : Chi-Squared 53.43 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.35e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.601e-07 8.822e-08
25- 50 8.161e-07 1.277e-07
50-150 1.613e-06 4.395e-07
15-150 2.889e-06 5.779e-07
Peak spectrum fit
Power-law model
Time interval is from -0.012 sec. to 0.988 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.69380 ( -0.126324 0.129741 )
Norm@50keV : 5.77593E-02 ( -0.0048711 0.0048398 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 70.27 using 59 bins.
Reduced chi-squared = 1.23281
# Null hypothesis probability of 1.11e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 7.65487 ( -0.62841 0.629 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.35131e-07 ( -4.68161e-08 4.70258e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.012 sec. to 0.988 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.977827 ( -0.562685 0.500674 )
Epeak [keV] : 73.8111 ( -14.589 51.7748 )
Norm@50keV : 0.131943 ( -0.0566626 0.115961 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 64.00 using 59 bins.
Reduced chi-squared = 1.14286
# Null hypothesis probability of 2.16e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 7.51674 ( -0.63763 0.63762 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.25037e-07 ( -4.8178e-08 4.82472e-08 ) ergs/cm2
Band function
Time interval is from -0.012 sec. to 0.988 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] : 14.4140 (-1.34238 1.48316)
R^2/D10^2 : 1.00591 (-0.301905 0.426138)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 97.60 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.57e-04 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.401e-08 6.865e-09
25- 50 1.684e-07 1.850e-08
50-150 2.338e-07 3.620e-08
15-150 4.462e-07 4.295e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 140.455 (-37.7241 59.4698)
Norm : 32.2200 (-1.62358 3.44043)
------------------------------------------------------------
#Fit statistic : Chi-Squared 65.04 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.17e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.318e-08 9.445e-09
25- 50 1.527e-07 2.050e-08
50-150 2.931e-07 1.132e-07
15-150 5.289e-07 1.278e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.33570 (-1.26826 1.66729)
R1^2/D10^2 : 20.7059 (-13.206 43.9549)
kT2 [keV] : 20.3342 (-2.80499 3.78833)
R2^2/D10^2 : 0.239568 (-0.119626 0.191466)
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.07 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.67e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.382e-08 3.679e-08
25- 50 1.451e-07 3.512e-08
50-150 2.962e-07 6.675e-08
15-150 5.250e-07 1.178e-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: 1.70546 ( -0.10611 0.107089 )
Norm@50keV : 1.00087E-02 ( -0.000617933 0.000614828 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.72 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.61e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 31.34 sec: 1.33182 ( -0.0822895 0.0824543 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.90301e-06 ( -1.86671e-07 1.87483e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.61893 ( -0.407862 0.392763 )
Epeak [keV] : 216.140 ( -141.605 -216.295 )
Norm@50keV : 1.10909E-02 ( -0.00192919 0.00666738 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.57 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.29e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 31.34 sec: 1.32602 ( -0.0858 0.08555 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.88545e-06 ( -2.01946e-07 1.98633e-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) = 7.87e-07
S(50-100 keV) = 9.65e-07
T90 vs. Hardness ratio plot
T90 = 20.3519999980927 sec.
Hardness ratio (energy fluence ratio) = 1.22618
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.24376
Count Ratio (50-100 keV) / (15-25 keV) = 0.900786
Mask shadow pattern
IMX = -6.044740482950214E-01, IMY = -5.767586574380681E-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:
-239.120000 -4.432000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.6029 -40.5900 1.8 22.9 -124.9 1.8064 6.4 4.0 Vela X-1
170.5007 -60.4515 3.8 9.8 -3.5 0.7340 3.0 11.6 Cen X-3
186.6892 -62.7987 1.2 16.7 14.7 2.0984 9.3 1.9 GX 301-2
226.9856 -32.6355 3.2 55.4 0.8 3.3058 3.6 ------ UNKNOWN
196.0097 -29.5056 2.4 43.8 -31.0 2.1188 4.7 ------ UNKNOWN
143.9466 -34.7355 2.8 27.3 -106.7 1.2768 4.1 ------ UNKNOWN
124.9049 -24.9643 3.3 40.6 -131.9 1.5789 3.5 ------ UNKNOWN
177.5935 -23.6647 2.2 42.3 -56.6 3.4741 5.2 ------ UNKNOWN
152.3884 -21.0205 3.9 40.7 -92.2 3.2455 3.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-4.432000 26.912000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.6036 -40.5757 5.7 22.9 -124.9 0.1851 2.0 3.6 Vela X-1
170.6056 -60.7430 4.1 9.7 -1.7 -0.2146 -2.9 11.2 Cen X-3
186.7488 -62.6716 5.5 16.8 14.3 0.1602 2.1 6.4 GX 301-2
51.0033 -81.9884 2.3 30.6 100.6 0.6252 4.9 ------ UNKNOWN
61.7597 -59.9012 0.5 39.9 136.3 4.9036 25.3 ------ UNKNOWN
243.0330 -43.0485 2.8 54.2 20.7 1.5443 4.1 ------ UNKNOWN
172.1260 -44.8317 2.5 21.1 -48.2 0.3658 4.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
573.280600 784.480600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.3654 -60.6645 7.7 45.9 -179.1 0.7082 1.5 2.9 Cen X-3
186.6057 -62.7446 2.3 43.5 170.1 2.3022 5.0 2.1 GX 301-2
244.9903 -15.6567 1.2 40.7 69.9 7.9790 9.5 1.2 Sco X-1
206.4517 33.5151 2.4 54.3 -16.2 3.4532 4.9 ------ UNKNOWN
178.2307 -7.2117 4.3 27.0 -84.0 0.8216 2.7 ------ UNKNOWN
156.7657 -34.9633 3.1 42.4 -140.1 1.6170 3.7 ------ UNKNOWN
150.0018 -27.2934 2.7 48.0 -129.0 4.4728 4.2 ------ UNKNOWN
Plot creation:
Thu Oct 20 00:52:55 EDT 2022