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
81.5319 -33.0183 0.0123 11.2603 -65.0072 0.8584158 15.575 TRIG_01120270
Foreground time interval of the image:
-9.628 8.872 (delta_t = 18.500 [sec])
Background time interval of the image:
-239.248 -9.628 (delta_t = 229.620 [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 -9.628 sec. to 8.872 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.41705 ( -0.189279 0.192071 )
Norm@50keV : 2.60814E-03 ( -0.000300892 0.000298742 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 55.07 using 59 bins.
Reduced chi-squared = 0.96614
# Null hypothesis probability of 5.48e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 18.5 sec: 0.318879 ( -0.035436 0.035455 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.647e-07 ( -6.00197e-08 6.09686e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -9.628 sec. to 8.872 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.387050 ( -1.06615 0.852988 )
Epeak [keV] : 77.4842 ( -18.2712 122.366 )
Norm@50keV : 8.65316E-03 ( -0.00537162 0.0200663 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 50.69 using 59 bins.
Reduced chi-squared = 0.905179
# Null hypothesis probability of 6.76e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 18.5 sec: 0.304566 ( -0.037652 0.037457 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.28127e-07 ( -6.45204e-08 6.7348e-08 ) ergs/cm2
Band function
Time interval is from -9.628 sec. to 8.872 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] : 15.4744 (-1.85673 2.1643)
R^2/D10^2 : 3.39405E-02 (-0.0123288 0.0187887)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.31 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.64e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.131e-08 7.095e-09
25- 50 1.279e-07 1.996e-08
50-150 2.113e-07 4.651e-08
15-150 3.706e-07 5.476e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-61.7673 -200)
Norm : 1.30887 (-0.144268 0.144268)
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.18 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.81e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.030e-08 3.348e-08
25- 50 1.160e-07 6.330e-08
50-150 2.544e-07 1.410e-07
15-150 4.307e-07 2.370e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.27279 (-1.60294 3.60414)
R1^2/D10^2 : 4.71524 (-4.5139 414.489)
kT2 [keV] : 17.5442 (-2.52525 3.93178)
R2^2/D10^2 : 2.07260E-02 (-0.0113089 0.0113395)
------------------------------------------------------------
#Fit statistic : Chi-Squared 48.39 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.24e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.127e-08 2.223e-08
25- 50 1.134e-07 3.396e-08
50-150 2.397e-07 7.503e-08
15-150 4.044e-07 8.140e-08
Peak spectrum fit
Power-law model
Time interval is from 1.876 sec. to 2.876 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.22050 ( -0.408046 0.412298 )
Norm@50keV : 5.41380E-03 ( -0.00128756 0.00128352 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 44.57 using 59 bins.
Reduced chi-squared = 0.78193
# Null hypothesis probability of 8.85e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.637368 ( -0.151567 0.151814 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.46185e-08 ( -1.46636e-08 1.50313e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 1.876 sec. to 2.876 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.166166 ( -3.90814 1.58782 )
Epeak [keV] : 84.2892 ( -29.4332 -83.7668 )
Norm@50keV : 2.39772E-02 ( -0.0247485 1.31549 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 43.19 using 59 bins.
Reduced chi-squared = 0.77125
# Null hypothesis probability of 8.95e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.598702 ( -0.168707 0.163188 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.03211e-08 ( -1.56937e-08 1.63949e-08 ) ergs/cm2
Band function
Time interval is from 1.876 sec. to 2.876 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] : 17.9597 (-4.08226 5.90191)
R^2/D10^2 : 4.35198E-02 (-0.0265543 0.058758)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 43.63 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.04e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.813e-09 1.350e-09
25- 50 1.299e-08 6.189e-09
50-150 3.039e-08 1.445e-08
15-150 4.618e-08 2.016e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.362 (-91.5312 -199.363)
Norm : 2.59623 (-0.62053 0.621947)
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.96 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.52e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.465e-09 3.910e-09
25- 50 1.244e-08 7.540e-09
50-150 2.727e-08 1.630e-08
15-150 4.618e-08 2.725e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 1.23627 (-1.18401 2.58773)
R1^2/D10^2 : 3.04399E+04 (-28037.2 -28039.9)
kT2 [keV] : 19.0712 (-4.4362 6.89944)
R2^2/D10^2 : 3.47008E-02 (-0.022108 0.0484188)
------------------------------------------------------------
#Fit statistic : Chi-Squared 39.46 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.43e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.788e-09 1.536e-09
25- 50 1.199e-08 6.788e-09
50-150 3.190e-08 1.783e-08
15-150 4.768e-08 2.326e-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: 1.41705 ( -0.189279 0.192071 )
Norm@50keV : 2.60814E-03 ( -0.000300892 0.000298742 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 55.07 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.48e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 18.5 sec: 0.318873 ( -0.0354351 0.0354541 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.64637e-07 ( -5.99961e-08 6.09828e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.387038 ( -1.06615 0.85299 )
Epeak [keV] : 77.4840 ( -18.2712 122.352 )
Norm@50keV : 8.65327E-03 ( -0.00537162 0.0200663 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 50.69 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.76e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 18.5 sec: 0.304544 ( -0.037646 0.037448 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.28294e-07 ( -6.46667e-08 6.74177e-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) = 1.10e-07
S(50-100 keV) = 1.65e-07
T90 vs. Hardness ratio plot
T90 = 16.5920000076294 sec.
Hardness ratio (energy fluence ratio) = 1.5
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.66735
Count Ratio (50-100 keV) / (15-25 keV) = 1.33229
Mask shadow pattern
IMX = 8.411997507449501E-02, IMY = 1.804552305637522E-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:
-239.248000 -9.628000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
29.6394 -21.2291 3.1 35.9 116.7 3.3996 3.8 ------ UNKNOWN
37.2545 -5.4712 2.8 39.5 144.8 3.3511 4.1 ------ UNKNOWN
83.9305 -51.8871 2.4 22.6 -7.5 1.6916 4.8 ------ UNKNOWN
74.3044 5.1353 2.2 38.0 -151.7 2.6149 5.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-9.628000 8.872000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
81.5319 -33.0183 0.7 11.3 -65.0 0.8586 15.5 ------ UNKNOWN
118.5788 -41.5566 2.2 40.7 -43.8 0.5639 5.3 ------ UNKNOWN
146.5851 -54.2317 2.1 57.7 -24.3 2.1318 5.6 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
78.852590 962.887800
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.6043 22.0042 2.0 55.0 -149.3 36.0094 5.7 1.7 Crab
135.3187 -40.5915 0.0 43.1 -35.4 -3.2724 -1.7 9.8 Vela X-1
40.3120 -27.1122 3.1 35.9 116.7 12.3934 3.8 ------ UNKNOWN
40.3062 -26.6510 3.3 36.1 117.4 12.8434 4.1 ------ UNKNOWN
46.1167 -10.4995 2.7 39.5 144.9 12.2549 4.2 ------ UNKNOWN
101.9016 -49.8008 2.5 22.6 -7.5 5.5177 4.6 ------ UNKNOWN
69.6391 3.9316 2.8 38.6 -170.8 6.6573 4.1 ------ UNKNOWN
131.5605 -57.4769 3.1 41.5 -10.1 6.8706 3.8 ------ UNKNOWN
98.5123 12.2022 3.0 48.0 -129.0 22.2834 3.9 ------ UNKNOWN
Plot creation:
Wed Jun 14 14:02:13 EDT 2023