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
305.4371 -4.6521 0.0166 45.7069 31.6983 2.0634316 11.551 TRIG_00908329
Foreground time interval of the image:
-2.848 12.381 (delta_t = 15.229 [sec])
Background time interval of the image:
-239.120 -2.848 (delta_t = 236.272 [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 -2.848 sec. to 175.652 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.75370 ( -0.237381 0.248393 )
Norm@50keV : 1.31706E-03 ( -0.000191791 0.000185893 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 81.59 using 59 PHA bins.
# Reduced chi-squared = 1.431 for 57 degrees of freedom
# Null hypothesis probability = 1.801042e-02
Photon flux (15-150 keV) in 178.5 sec: 0.178341 ( -0.022392 0.022419 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.16919e-06 ( -3.22392e-07 3.28101e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -2.848 sec. to 175.652 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.56892 ( -1.10212 0.213964 )
Epeak [keV] : 193.252 ( )
Norm@50keV : 5.11130E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 80.23 using 59 PHA bins.
# Reduced chi-squared = 1.433 for 56 degrees of freedom
# Null hypothesis probability = 1.854977e-02
Photon flux (15-150 keV) in 178.5 sec: 0.178649 ( -0.023029 0.022395 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.18791e-06 ( -4.59216e-07 1.4221e-07 ) ergs/cm2
Band function
Time interval is from -2.848 sec. to 175.652 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] : 11.2992 (-1.96169 2.524)
R^2/D10^2 : 5.10511E-02 (-0.0264803 0.0524327)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 107.40 using 59 PHA bins.
# Reduced chi-squared = 1.8842 for 57 degrees of freedom
# Null hypothesis probability = 6.179999e-05
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.443e-07 6.409e-08
25- 50 7.146e-07 1.374e-07
50-150 5.259e-07 1.700e-07
15-150 1.485e-06 2.735e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 131.225 (-57.4755 -129.985)
Norm : 0.737860 (-0.108613 0.154854)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 84.11 using 59 PHA bins.
# Reduced chi-squared = 1.476 for 57 degrees of freedom
# Null hypothesis probability = 1.127129e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.415e-07 7.211e-08
25- 50 6.202e-07 3.119e-07
50-150 1.155e-06 6.479e-07
15-150 2.117e-06 8.763e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.63414 (-2.12997 2.20957)
R1^2/D10^2 : 0.294132 (-0.185577 0.987256)
kT2 [keV] : 34.1343 (-14.2289 94.3155)
R2^2/D10^2 : 8.35374E-04 (-0.000772311 0.00274609)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 82.83 using 59 PHA bins.
# Reduced chi-squared = 1.506 for 55 degrees of freedom
# Null hypothesis probability = 8.994979e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.749e-07 1.816e-07
25- 50 5.930e-07 2.515e-07
50-150 1.313e-06 7.244e-07
15-150 2.281e-06 1.028e-06
Peak spectrum fit
Power-law model
Time interval is from 0.012 sec. to 1.012 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.25388 ( -0.225241 0.223429 )
Norm@50keV : 4.77675E-02 ( -0.00619652 0.00618729 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.05 using 59 PHA bins.
# Reduced chi-squared = 1.001 for 57 degrees of freedom
# Null hypothesis probability = 4.731568e-01
Photon flux (15-150 keV) in 1 sec: 5.65323 ( -0.74676 0.74787 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.77617e-07 ( -6.91754e-08 6.98148e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.012 sec. to 1.012 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.984503 ( -1.1018 0.469328 )
Epeak [keV] : 199.050 ( -199.123 -199.123 )
Norm@50keV : 6.46208E-02 ( -0.0624564 0.148884 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.81 using 59 PHA bins.
# Reduced chi-squared = 1.014 for 56 degrees of freedom
# Null hypothesis probability = 4.447578e-01
Photon flux (15-150 keV) in 1 sec: 5.59812 ( -0.77509 0.77051 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.25254e-07 ( -6.71321e-08 3.31733e-08 ) ergs/cm2
Band function
Time interval is from 0.012 sec. to 1.012 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] : 17.5815 (-2.56091 3.19703)
R^2/D10^2 : 0.398637 (-0.171759 0.279311)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.28 using 59 PHA bins.
# Reduced chi-squared = 1.163 for 57 degrees of freedom
# Null hypothesis probability = 1.874532e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.485e-08 5.850e-09
25- 50 1.129e-07 2.287e-08
50-150 2.517e-07 5.780e-08
15-150 3.895e-07 7.290e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-45.6254 -200)
Norm : 23.3086 (-3.05759 3.05759)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.65 using 59 PHA bins.
# Reduced chi-squared = 1.082 for 57 degrees of freedom
# Null hypothesis probability = 3.135011e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.806e-08 3.320e-08
25- 50 1.117e-07 6.175e-08
50-150 2.449e-07 1.365e-07
15-150 4.147e-07 2.321e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.60850 (-3.28345 10.4563)
R1^2/D10^2 : 8.79277 (-8.2361 37.2646)
kT2 [keV] : 23.1457 (-5.69193 -23.1887)
R2^2/D10^2 : 0.139923 (-0.122011 0.247025)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.34 using 59 PHA bins.
# Reduced chi-squared = 1.061 for 55 degrees of freedom
# Null hypothesis probability = 3.536495e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.668e-08 2.526e-08
25- 50 1.022e-07 4.750e-08
50-150 2.970e-07 1.647e-07
15-150 4.458e-07 2.038e-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: 1.48989 ( -0.242973 0.246511 )
Norm@50keV : 8.82585E-03 ( -0.00124002 0.00123349 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.66 using 59 PHA bins.
# Reduced chi-squared = 1.029 for 57 degrees of freedom
# Null hypothesis probability = 4.144847e-01
Photon flux (15-150 keV) in 15.23 sec: 1.09884 ( -0.156864 0.157444 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.27729e-06 ( -1.94221e-07 1.95829e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.49014 ( -0.394986 0.246035 )
Epeak [keV] : 9999.36 ( -9999.36 -9999.36 )
Norm@50keV : 8.84560E-03 ( -0.00815377 0.0175118 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.66 using 59 PHA bins.
# Reduced chi-squared = 1.047 for 56 degrees of freedom
# Null hypothesis probability = 3.782560e-01
Photon flux (15-150 keV) in 15.23 sec: 1.09845 ( -0.156587 0.15686 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.2776e-06 ( -2.03266e-07 1.94662e-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) = 6.00e-07
S(50-100 keV) = 7.12e-07
T90 vs. Hardness ratio plot
T90 = 160.819999933243 sec.
Hardness ratio (energy fluence ratio) = 1.18667
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.41712
Count Ratio (50-100 keV) / (15-25 keV) = 0.851565
Mask shadow pattern
IMX = 8.720846365663342E-01, IMY = -5.385738319164157E-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 -2.848000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4162 35.2952 4.8 18.1 -174.7 -1.2544 -2.4 3.5 Her X-1
268.4469 -1.5420 9.6 33.2 88.7 -1.0691 -1.2 7.2 SW J1753.5-0127
288.6931 10.9263 3.7 23.5 41.5 1.7173 3.1 6.3 GRS 1915+105
299.6014 35.2068 0.9 20.6 -32.5 7.9547 13.5 0.6 Cyg X-1
308.1802 40.7617 5.7 28.1 -43.7 -1.4263 -2.0 11.9 Cyg X-3
326.3432 38.2743 7.9 42.0 -38.6 1.4626 1.5 8.6 Cyg X-2
240.0140 26.8018 2.1 31.2 167.2 3.7882 5.4 ------ UNKNOWN
331.7427 8.6370 2.7 56.8 -3.6 5.9998 4.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-2.848000 12.380600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4821 35.1988 10.5 18.0 -175.0 0.0643 1.1 8.7 Her X-1
268.5236 -1.3326 0.0 33.0 88.6 -0.1323 -0.9 11.8 SW J1753.5-0127
288.7239 11.0362 5.8 23.4 41.3 -0.1463 -2.0 7.0 GRS 1915+105
299.8137 35.2404 10.8 20.8 -32.5 0.0681 1.1 11.2 Cyg X-1
308.2628 41.0423 18.4 28.2 -44.3 0.0409 0.6 8.8 Cyg X-3
326.1708 38.3200 1136.9 41.9 -38.6 0.0010 0.0 0.1 Cyg X-2
305.4370 -4.6521 1.0 45.7 31.7 2.0625 11.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
85.980600 962.922000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
268.3648 -1.4402 39.1 37.1 122.0 -1.1550 -0.3 0.8 SW J1753.5-0127
270.3543 -25.0869 6.5 39.3 83.3 5.5277 1.8 3.8 GX 5-1
270.3413 -25.6117 7.1 39.6 82.6 -5.0591 -1.6 8.2 GRS 1758-258
274.0016 -14.1228 4.2 32.4 99.0 6.5128 2.7 5.2 GX 17+2
276.1352 -30.4198 8.4 37.7 71.7 4.0280 1.4 11.3 H1820-303
284.8916 -24.9900 12.8 28.3 70.3 -1.8726 -0.9 8.9 HT1900.1-2455
288.6617 10.9010 5.4 22.8 161.3 3.7781 2.1 8.5 GRS 1915+105
299.5763 35.1896 1.3 40.2 -159.2 28.2607 8.8 1.0 Cyg X-1
308.1719 40.9514 6.0 45.7 -148.9 8.3143 1.9 2.8 Cyg X-3
326.2894 38.2826 6.1 47.1 -129.4 17.2764 1.9 6.0 Cyg X-2
305.8205 -13.3250 2.5 8.7 25.6 8.7815 4.7 ------ UNKNOWN
339.3627 -44.3602 2.7 49.6 -3.4 13.5769 4.2 ------ UNKNOWN
341.3072 15.4164 2.3 40.8 -92.0 45.3781 5.0 ------ UNKNOWN
Plot creation:
Tue Jul 16 15:36:28 EDT 2019