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
223.0905 26.7169 0.0221 24.8439 -171.8619 0.3492565 8.709 TRIG_01009679
Foreground time interval of the image:
-0.440 8.736 (delta_t = 9.176 [sec])
Background time interval of the image:
-239.384 -0.440 (delta_t = 238.944 [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 5.504000
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 5.504000
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 5.504000
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 -0.440 sec. to 8.736 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.36219 ( -0.372877 0.365421 )
Norm@50keV : 2.19402E-03 ( -0.000435703 0.000432124 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.58 using 59 bins.
Reduced chi-squared = 0.869825
# Null hypothesis probability of 7.47e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 9.176 sec: 0.264990 ( -0.052567 0.052732 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.96125e-07 ( -4.3687e-08 4.45069e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.440 sec. to 8.736 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.61222 ( -1.79551 1.24416 )
Epeak [keV] : 193.925 ( )
Norm@50keV : 4.52697E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 48.61 using 59 bins.
Reduced chi-squared = 0.868036
# Null hypothesis probability of 7.48e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 9.176 sec: 0.264986 ( -0.05266 0.052679 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.97767e-07 ( -5.68691e-08 5.48973e-08 ) ergs/cm2
Band function
Time interval is from -0.440 sec. to 8.736 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] : 13.6174 (-3.75711 7.27947)
R^2/D10^2 : 4.07425E-02 (-0.0401695 0.0867627)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.14 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.30e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.468e-08 6.548e-09
25- 50 5.308e-08 1.977e-08
50-150 6.387e-08 3.010e-08
15-150 1.316e-07 4.845e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.362 (-92.3541 -199.363)
Norm : 1.08689 (-0.213576 0.213572)
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.05 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.97e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.483e-08 1.459e-08
25- 50 4.777e-08 2.782e-08
50-150 1.048e-07 5.909e-08
15-150 1.774e-07 1.034e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.34120 (-2.37769 2.90437)
R1^2/D10^2 : 0.189075 (-0.121887 0.345376)
kT2 [keV] : 89.8531 (-94.3108 -94.3111)
R2^2/D10^2 : 1.74049E-04 (-0.000113731 0.00197305)
------------------------------------------------------------
#Fit statistic : Chi-Squared 46.10 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.98e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.334e-08 1.350e-08
25- 50 4.912e-08 2.939e-08
50-150 1.409e-07 9.497e-08
15-150 2.133e-07 1.414e-07
Peak spectrum fit
Power-law model
Time interval is from 4.208 sec. to 5.208 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.24895 ( -0.703693 0.627083 )
Norm@50keV : 3.80841E-03 ( -0.00126052 0.00126038 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.19 using 59 bins.
Reduced chi-squared = 0.792807
# Null hypothesis probability of 8.71e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.450357 ( -0.154871 0.155536 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.81294e-08 ( -1.39085e-08 1.42536e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 4.208 sec. to 5.208 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.17547 ( -1.10426 0.615329 )
Epeak [keV] : 62.6657 ( -9999.36 -9999.36 )
Norm@50keV : 1.04367E-03 ( -0.00103916 0.0154383 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 44.93 using 59 bins.
Reduced chi-squared = 0.802321
# Null hypothesis probability of 8.56e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.451860 ( -0.157227 0.154811 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.86322e-08 ( -1.44971e-08 1.38111e-08 ) ergs/cm2
Band function
Time interval is from 4.208 sec. to 5.208 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] : 17.7590 (-9.78546 34.3503)
R^2/D10^2 : 2.80425E-02 (-0.0262894 0.40408)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.94 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.35e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.778e-09 1.184e-09
25- 50 8.141e-09 5.035e-09
50-150 1.857e-08 1.324e-08
15-150 2.849e-08 1.779e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 (-199.363 -199.363)
Norm : 1.86648 (-0.62985 0.629867)
------------------------------------------------------------
#Fit statistic : Chi-Squared 46.12 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.48e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.648e-09 2.917e-09
25- 50 8.940e-09 5.590e-09
50-150 1.961e-08 1.211e-08
15-150 3.320e-08 2.136e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.66551 (-3.55071 4.05214)
R1^2/D10^2 : 0.422029 (-0.329303 2.5593)
kT2 [keV] : 70.1574 (-36.3348 -58.8551)
R2^2/D10^2 : 5.32543E-04 (-0.000440536 0.00995797)
------------------------------------------------------------
#Fit statistic : Chi-Squared 43.28 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.74e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.730e-09 2.871e-09
25- 50 9.154e-09 5.540e-09
50-150 2.753e-08 6.900e-09
15-150 4.141e-08 1.710e-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: 1.36219 ( -0.372877 0.365421 )
Norm@50keV : 2.19402E-03 ( -0.000435703 0.000432124 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.58 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.47e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 9.176 sec: 0.264986 ( -0.0525653 0.0527299 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.96101e-07 ( -4.36819e-08 4.45419e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.37365 ( -0.388909 0.354327 )
Epeak [keV] : 9999.32 ( -9999.36 -9999.36 )
Norm@50keV : 2.19823E-03 ( -0.000430641 0.00318986 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.59 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.14e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 9.176 sec: 0.265750 ( -0.053315 0.052012 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.95653e-07 ( -4.32621e-08 4.48505e-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) = 4.51e-08
S(50-100 keV) = 7.03e-08
T90 vs. Hardness ratio plot
T90 = 8.52400004863739 sec.
Hardness ratio (energy fluence ratio) = 1.55876
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.43623
Count Ratio (50-100 keV) / (15-25 keV) = 1.01118
Mask shadow pattern
IMX = -4.583320075648246E-01, IMY = 6.554112632781912E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 5.504000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 5.504000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 5.504000
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:
-239.384000 -0.440000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3969 35.4237 7.8 52.7 -166.8 1.2139 1.5 5.7 Her X-1
237.9082 16.4702 2.2 34.8 -143.2 1.9068 5.3 ------ UNKNOWN
244.6102 -1.4901 3.5 43.9 -116.3 3.8862 3.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.440000 8.736000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4786 35.3600 5.2 52.8 -166.7 0.2497 2.2 1.5 Her X-1
223.0906 26.7168 1.3 24.8 -171.9 0.3491 8.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
110.516600 772.716600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4617 35.3839 1.5 28.1 179.9 4.5749 7.6 2.5 Her X-1
169.7717 28.2831 3.4 47.0 40.6 5.3922 3.4 ------ UNKNOWN
284.7675 30.1457 2.4 53.7 -173.5 8.3215 4.8 ------ UNKNOWN
258.6299 15.7051 3.4 34.7 -143.2 2.4669 3.4 ------ UNKNOWN
282.0323 17.8586 2.9 54.8 -158.1 7.9210 4.0 ------ UNKNOWN
205.7489 -20.5093 2.7 50.1 -42.9 9.9726 4.3 ------ UNKNOWN
214.5962 -19.5393 3.2 46.9 -53.3 7.9843 3.6 ------ UNKNOWN
Plot creation:
Sat Jul 30 07:25:25 EDT 2022