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
235.0854 -0.8993 0.0170 24.7069 170.8669 0.1698441 11.286 TRIG_00848048
Foreground time interval of the image:
-0.144 0.632 (delta_t = 0.776 [sec])
Background time interval of the image:
-239.272 -0.144 (delta_t = 239.128 [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 0.512000
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 0.512000
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 0.512000
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 -0.144 sec. to 0.632 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.737030 ( -0.273434 0.258844 )
Norm@50keV : 1.35296E-02 ( -0.00201205 0.00197034 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.03 using 59 PHA bins.
# Reduced chi-squared = 0.8075 for 57 degrees of freedom
# Null hypothesis probability = 8.504854e-01
Photon flux (15-150 keV) in 0.776 sec: 1.55979 ( -0.22035 0.2215 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.2607e-07 ( -1.88063e-08 1.89382e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.144 sec. to 0.632 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.589279 ( -1.23499 0.38463 )
Epeak [keV] : 611.578 ( -611.507 -611.507 )
Norm@50keV : 1.54616E-02 ( -0.00340321 0.0276541 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.97 using 59 PHA bins.
# Reduced chi-squared = 0.8208 for 56 degrees of freedom
# Null hypothesis probability = 8.282993e-01
Photon flux (15-150 keV) in 0.776 sec: 1.54914 ( -0.23271 0.2283 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.25514e-07 ( -1.94688e-08 1.90937e-08 ) ergs/cm2
Band function
Time interval is from -0.144 sec. to 0.632 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] : 28.6971 (-5.27575 7.46208)
R^2/D10^2 : 2.68032E-02 (-0.0126582 0.0214489)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.05 using 59 PHA bins.
# Reduced chi-squared = 0.8956 for 57 degrees of freedom
# Null hypothesis probability = 6.967355e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.753e-09 8.090e-10
25- 50 1.667e-08 4.575e-09
50-150 9.851e-08 2.642e-08
15-150 1.179e-07 2.728e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-29.7455 -200)
Norm : 6.06846 (-0.914759 0.914759)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 72.17 using 59 PHA bins.
# Reduced chi-squared = 1.266 for 57 degrees of freedom
# Null hypothesis probability = 8.491079e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.172e-08 6.740e-09
25- 50 2.255e-08 1.260e-08
50-150 4.945e-08 2.768e-08
15-150 8.372e-08 4.648e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.01341 (-2.62786 5.65148)
R1^2/D10^2 : 2.96854 (-2.77586 120.184)
kT2 [keV] : 34.0133 (-7.61231 16.3406)
R2^2/D10^2 : 1.58181E-02 (-0.0104519 0.00855313)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.01 using 59 PHA bins.
# Reduced chi-squared = 0.8003 for 55 degrees of freedom
# Null hypothesis probability = 8.558618e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.713e-09 4.262e-09
25- 50 1.699e-08 7.355e-09
50-150 1.023e-07 4.396e-08
15-150 1.270e-07 5.333e-08
Peak spectrum fit
Power-law model
Time interval is from -0.256 sec. to 0.744 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.677033 ( -0.304706 0.285083 )
Norm@50keV : 1.02104E-02 ( -0.00174781 0.0016969 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.05 using 59 PHA bins.
# Reduced chi-squared = 0.9308 for 57 degrees of freedom
# Null hypothesis probability = 6.238642e-01
Photon flux (15-150 keV) in 1 sec: 1.18248 ( -0.186615 0.1878 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.25951e-07 ( -2.02887e-08 2.03947e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.256 sec. to 0.744 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.157066 ( -1.89522 0.646902 )
Epeak [keV] : 237.764 ( -237.657 -237.657 )
Norm@50keV : 1.58420E-02 ( -0.0070746 0.0493481 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.60 using 59 PHA bins.
# Reduced chi-squared = 0.9394 for 56 degrees of freedom
# Null hypothesis probability = 6.041797e-01
Photon flux (15-150 keV) in 1 sec: 1.15294 ( -0.204763 0.20083 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.2448e-07 ( -2.12276e-08 2.09118e-08 ) ergs/cm2
Band function
Time interval is from -0.256 sec. to 0.744 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] : 29.7168 (-5.6667 8.34113)
R^2/D10^2 : 1.88380E-02 (-0.00929075 0.0158673)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.20 using 59 PHA bins.
# Reduced chi-squared = 0.9509 for 57 degrees of freedom
# Null hypothesis probability = 5.807440e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.618e-09 8.755e-10
25- 50 1.609e-08 5.187e-09
50-150 1.007e-07 3.192e-08
15-150 1.194e-07 3.188e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-32.9266 -200)
Norm : 4.62340 (-0.783162 0.783162)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 77.99 using 59 PHA bins.
# Reduced chi-squared = 1.368 for 57 degrees of freedom
# Null hypothesis probability = 3.388299e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.151e-08 6.670e-09
25- 50 2.215e-08 1.286e-08
50-150 4.858e-08 2.773e-08
15-150 8.225e-08 4.661e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.48680 (-2.4918 4.5336)
R1^2/D10^2 : 11.3438 (-11.0563 21673.4)
kT2 [keV] : 32.5167 (-6.76359 11.1962)
R2^2/D10^2 : 1.42403E-02 (-0.00780605 0.0135431)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.32 using 59 PHA bins.
# Reduced chi-squared = 0.8967 for 55 degrees of freedom
# Null hypothesis probability = 6.905365e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.330e-09 3.691e-09
25- 50 1.547e-08 6.000e-09
50-150 1.027e-07 3.776e-08
15-150 1.255e-07 4.042e-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: 0.737030 ( -0.273434 0.258844 )
Norm@50keV : 1.35296E-02 ( -0.00201205 0.00197034 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.03 using 59 PHA bins.
# Reduced chi-squared = 0.8075 for 57 degrees of freedom
# Null hypothesis probability = 8.504854e-01
Photon flux (15-150 keV) in 0.776 sec: 1.55981 ( -0.22035 0.221498 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.26058e-07 ( -1.88049e-08 1.89416e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.589470 ( -1.23503 0.384589 )
Epeak [keV] : 612.051 ( -611.526 -611.526 )
Norm@50keV : 1.54597E-02 ( -0.0034032 0.0276544 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.97 using 59 PHA bins.
# Reduced chi-squared = 0.8208 for 56 degrees of freedom
# Null hypothesis probability = 8.282993e-01
Photon flux (15-150 keV) in 0.776 sec: 1.54910 ( -0.23265 0.2283 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.25575e-07 ( -1.94768e-08 1.92401e-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) = 1.94e-08
S(50-100 keV) = 4.66e-08
T90 vs. Hardness ratio plot
T90 = 0.684000015258789 sec.
Hardness ratio (energy fluence ratio) = 2.40206
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.8385
Count Ratio (50-100 keV) / (15-25 keV) = 2.72212
Mask shadow pattern
IMX = -4.542611714895851E-01, IMY = -7.302989999228948E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000
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:
-239.272000 -0.144000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9816 -15.6478 0.6 37.9 147.6 9.0611 19.9 0.5 Sco X-1
254.4854 35.3498 2.2 16.0 1.8 1.3002 5.3 1.4 Her X-1
268.5692 -1.4343 0.0 33.7 100.6 -0.2988 -0.5 12.1 SW J1753.5-0127
299.6424 35.1652 5.1 49.8 31.2 2.6847 2.3 3.4 Cyg X-1
256.4114 -22.7493 3.3 46.6 133.3 4.0466 3.5 ------ UNKNOWN
286.1580 61.8600 2.1 48.9 -6.0 2.4700 5.6 ------ UNKNOWN
196.4909 15.1218 3.3 45.4 -121.3 4.8025 3.5 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.144000 0.632000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.7763 -15.6854 6.4 37.9 147.9 -0.0453 -1.8 12.0 Sco X-1
254.3031 35.4143 6.2 16.0 1.2 0.0241 1.9 8.7 Her X-1
268.2021 -1.4945 25.0 33.5 101.1 0.0121 0.5 10.3 SW J1753.5-0127
299.6277 35.0756 5.4 49.8 31.3 0.1282 2.2 7.8 Cyg X-1
234.3621 -23.0912 2.4 46.3 161.4 0.1670 4.9 ------ UNKNOWN
231.8005 -11.3451 2.5 35.6 169.9 0.0811 4.6 ------ UNKNOWN
235.0855 -0.8992 1.0 24.7 170.9 0.1684 11.2 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
289.228600 635.028600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9658 -15.6350 0.8 38.2 -145.1 8.4123 14.7 0.8 Sco X-1
255.9643 -37.8241 1.5 42.0 177.4 4.5287 7.7 1.6 4U 1700-377
256.3721 -36.5053 7.8 40.8 178.3 0.7997 1.5 5.8 GX 349+2
263.1591 -24.6622 8.2 28.0 -175.7 0.5007 1.4 9.6 GX 1+4
264.6385 -44.3669 14.9 44.0 164.1 -0.5671 -0.8 6.7 4U 1735-44
268.5142 -1.3748 62.3 13.1 -116.6 0.0631 0.2 9.9 SW J1753.5-0127
270.3101 -25.1152 3.3 24.6 171.7 1.1558 3.5 2.6 GX 5-1
270.3096 -25.7897 2.4 25.2 171.0 1.6955 4.9 2.8 GRS 1758-258
274.0613 -13.9623 3.6 13.2 -179.8 1.0986 3.1 5.5 GX 17+2
275.6874 -30.4112 0.0 28.0 157.5 0.4400 1.1 12.6 H1820-303
285.1703 -24.9974 74.9 22.3 138.0 -0.0562 -0.2 8.6 HT1900.1-2455
288.7804 10.9649 1.3 15.7 -6.1 2.8037 8.9 1.6 GRS 1915+105
299.6011 35.1591 4.9 41.7 -10.9 1.0716 2.4 2.6 Cyg X-1
307.9894 41.0002 25.8 50.1 -7.4 0.3337 0.4 6.2 Cyg X-3
262.9364 -33.7558 4.0 35.3 174.0 1.3564 2.9 5.4 GX 354-0
329.3168 12.6417 3.5 49.9 37.4 5.7375 3.3 ------ UNKNOWN
303.7417 -33.3167 3.2 36.8 114.9 2.7711 3.6 ------ UNKNOWN
299.1864 27.0781 2.6 34.5 -4.9 1.7950 4.4 ------ UNKNOWN
262.1473 -20.2623 3.0 25.6 -167.2 1.2245 3.8 ------ UNKNOWN
275.0774 7.1803 1.6 12.0 -65.8 2.1647 7.1 ------ UNKNOWN
304.8588 44.7981 4.1 52.1 -12.5 2.4770 2.8 ------ UNKNOWN
UNKNOWN
UNKNOWN
UNKNOWN
Plot creation:
Mon Aug 6 22:30:33 EDT 2018