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
278.3918 9.1177 0.0116 12.0209 20.3832 1.1638647 16.576 TRIG_00790053
Foreground time interval of the image:
-7.380 26.037 (delta_t = 33.417 [sec])
Background time interval of the image:
-174.963 -7.380 (delta_t = 167.583 [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 2.048000
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 2.048000
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 2.048000
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 -7.380 sec. to 32.332 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.72166 ( -0.182758 0.187183 )
Norm@50keV : 1.82355E-03 ( -0.000195283 0.000191444 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.47 using 59 PHA bins.
# Reduced chi-squared = 0.9030 for 57 degrees of freedom
# Null hypothesis probability = 6.817514e-01
Photon flux (15-150 keV) in 39.71 sec: 0.244060 ( -0.023238 0.023281 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.69483e-07 ( -7.44789e-08 7.58151e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -7.380 sec. to 32.332 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.72980 ( -0.208057 0.179992 )
Epeak [keV] : 9999.36 ( -9999.35 -9999.36 )
Norm@50keV : 1.81538E-03 ( -0.00133417 0.00102661 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.49 using 59 PHA bins.
# Reduced chi-squared = 0.9195 for 56 degrees of freedom
# Null hypothesis probability = 6.460824e-01
Photon flux (15-150 keV) in 39.71 sec: 0.244493 ( -0.023923 0.023184 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.75912e-07 ( -8.11406e-08 6.91629e-08 ) ergs/cm2
Band function
Time interval is from -7.380 sec. to 32.332 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] : 11.5130 (-1.43992 1.73388)
R^2/D10^2 : 6.55720E-02 (-0.0263932 0.0423994)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 89.38 using 59 PHA bins.
# Reduced chi-squared = 1.568 for 57 degrees of freedom
# Null hypothesis probability = 3.957309e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.267e-08 1.316e-08
25- 50 2.176e-07 2.782e-08
50-150 1.685e-07 3.812e-08
15-150 4.588e-07 5.684e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 138.308 (-53.142 -136.667)
Norm : 0.999487 (-0.11059 0.156531)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.80 using 59 PHA bins.
# Reduced chi-squared = 0.9613 for 57 degrees of freedom
# Null hypothesis probability = 5.581959e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.026e-07 1.396e-08
25- 50 1.878e-07 4.299e-08
50-150 3.581e-07 1.812e-07
15-150 6.485e-07 2.322e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.24629 (-1.79509 1.86352)
R1^2/D10^2 : 0.294189 (-0.157814 0.458008)
kT2 [keV] : 40.2923 (-17.486 -40.8719)
R2^2/D10^2 : 7.05717E-04 (-0.000599874 0.00214858)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.72 using 59 PHA bins.
# Reduced chi-squared = 0.9585 for 55 degrees of freedom
# Null hypothesis probability = 5.623956e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.078e-07 2.915e-08
25- 50 1.892e-07 5.625e-08
50-150 4.130e-07 2.109e-07
15-150 7.100e-07 2.679e-07
Peak spectrum fit
Power-law model
Time interval is from -2.324 sec. to -1.324 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.78118 ( -0.485416 0.549419 )
Norm@50keV : 4.23754E-03 ( -0.00135546 0.00124864 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.86 using 59 PHA bins.
# Reduced chi-squared = 0.9274 for 57 degrees of freedom
# Null hypothesis probability = 6.310103e-01
Photon flux (15-150 keV) in 1 sec: 0.579747 ( -0.143394 0.143431 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.90472e-08 ( -1.20269e-08 1.26194e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -2.324 sec. to -1.324 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.14799 ( -1.80467 0.0617533 )
Epeak [keV] : 58.9638 ( )
Norm@50keV : 2.79228E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.80 using 59 PHA bins.
# Reduced chi-squared = 0.9429 for 56 degrees of freedom
# Null hypothesis probability = 5.967521e-01
Photon flux (15-150 keV) in 1 sec: 0.580834 ( -0.144253 0.142724 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.44398e-08 ( -1.52226e-08 1.12301e-08 ) ergs/cm2
Band function
Time interval is from -2.324 sec. to -1.324 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] : 12.8715 (-4.95071 6.35365)
R^2/D10^2 : 0.103548 (-0.101757 0.491563)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.26 using 59 PHA bins.
# Reduced chi-squared = 1.057 for 57 degrees of freedom
# Null hypothesis probability = 3.587282e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.639e-09 2.277e-09
25- 50 1.240e-08 7.435e-09
50-150 1.291e-08 8.260e-09
15-150 2.895e-08 1.674e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 128.165 (-81.8313 -125.399)
Norm : 2.39554 (-0.662179 1.1938)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.56 using 59 PHA bins.
# Reduced chi-squared = 0.9396 for 57 degrees of freedom
# Null hypothesis probability = 6.049703e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.220e-09 3.637e-09
25- 50 1.125e-08 6.495e-09
50-150 2.073e-08 1.434e-08
15-150 3.820e-08 2.391e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.19085 (-2.38803 3.08804)
R1^2/D10^2 : 5.71057 (-5.14116 898.214)
kT2 [keV] : 21.0897 (-7.86618 26.7691)
R2^2/D10^2 : 1.52456E-02 (-0.0140659 0.0753825)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.94 using 59 PHA bins.
# Reduced chi-squared = 0.9443 for 55 degrees of freedom
# Null hypothesis probability = 5.924461e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.759e-09 4.539e-09
25- 50 9.258e-09 4.967e-09
50-150 2.190e-08 1.397e-08
15-150 3.891e-08 2.077e-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: 1.77566 ( -0.183338 0.188765 )
Norm@50keV : 1.93883E-03 ( -0.000215775 0.000211199 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.27 using 59 PHA bins.
# Reduced chi-squared = 0.7766 for 57 degrees of freedom
# Null hypothesis probability = 8.908799e-01
Photon flux (15-150 keV) in 33.42 sec: 0.264688 ( -0.0254233 0.0254491 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.97102e-07 ( -6.77397e-08 6.89481e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.78445 ( -0.493603 0.653815 )
Epeak [keV] : 9999.36 ( -9999.35 -9999.36 )
Norm@50keV : 1.92125E-03 ( -0.000769775 0.00158855 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.30 using 59 PHA bins.
# Reduced chi-squared = 0.7910 for 56 degrees of freedom
# Null hypothesis probability = 8.707233e-01
Photon flux (15-150 keV) in 33.42 sec: 0.264854 ( -0.025713 0.025221 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.94632e-07 ( -6.72745e-08 7.01218e-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) = 1.83e-07
S(50-100 keV) = 2.22e-07
T90 vs. Hardness ratio plot
T90 = 36.7719999551773 sec.
Hardness ratio (energy fluence ratio) = 1.21311
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.05499
Count Ratio (50-100 keV) / (15-25 keV) = 0.641766
Mask shadow pattern
IMX = 1.996049371019823E-01, IMY = -7.416591476991764E-02
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000
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:
-174.963400 -7.380000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9886 -15.6375 1.0 38.0 -78.7 6.3671 11.4 0.6 Sco X-1
254.3963 35.3358 3.5 45.5 2.7 1.1091 3.3 3.0 Her X-1
256.0828 -37.8860 6.1 42.1 -116.3 1.3367 1.9 5.2 4U 1700-377
256.3910 -36.4294 6.6 40.9 -115.2 1.1065 1.7 2.2 GX 349+2
263.0942 -24.7524 3.9 28.2 -109.7 0.7567 3.0 4.7 GX 1+4
264.7496 -44.4537 199.5 44.3 -129.5 0.0311 0.1 0.4 4U 1735-44
268.2501 -1.3540 6.9 13.0 -51.1 -0.3075 -1.7 9.2 SW J1753.5-0127
270.4002 -25.0215 5.8 24.7 -122.4 0.4508 2.0 7.2 GX 5-1
270.5322 -25.7907 0.0 25.4 -123.4 0.5943 2.6 12.7 GRS 1758-258
273.9865 -14.0022 7.3 13.5 -114.8 0.3088 1.6 2.3 GX 17+2
275.9658 -30.3468 3.5 28.2 -136.7 0.7279 3.3 2.4 H1820-303
285.0759 -24.9991 28.0 22.7 -155.4 0.0709 0.4 5.2 HT1900.1-2455
288.8235 10.9892 4.3 15.6 62.9 0.4925 2.7 3.0 GRS 1915+105
299.4773 35.2388 3.9 41.5 56.5 1.8404 3.0 6.0 Cyg X-1
262.8564 -33.8374 7.2 35.6 -119.6 0.5324 1.6 6.6 GX 354-0
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-7.380000 26.036590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0284 -15.6217 19.5 37.9 -78.7 -0.1299 -0.6 3.0 Sco X-1
254.4629 35.2493 4.7 45.4 2.7 -0.3244 -2.5 5.6 Her X-1
256.0167 -37.8590 5.5 42.1 -116.2 -0.6259 -2.1 1.7 4U 1700-377
256.2001 -36.3856 3.7 40.9 -115.0 -0.7960 -3.1 11.6 GX 349+2
262.8361 -24.7729 7.8 28.4 -109.3 0.1541 1.5 9.6 GX 1+4
264.7530 -44.5708 11.9 44.4 -129.5 -0.2078 -1.0 7.3 4U 1735-44
268.3114 -1.3462 92.2 12.9 -51.0 -0.0091 -0.1 7.2 SW J1753.5-0127
270.0669 -25.0466 8.3 24.9 -121.8 -0.1223 -1.4 12.0 GX 5-1
270.4968 -25.7428 8.9 25.3 -123.3 0.1165 1.3 10.5 GRS 1758-258
274.0532 -13.8345 0.0 13.3 -114.6 -0.0612 -0.8 12.4 GX 17+2
275.8449 -30.2430 12.7 28.1 -136.5 0.0833 0.9 8.5 H1820-303
285.0956 -24.8334 6.6 22.6 -155.6 -0.1293 -1.7 6.2 HT1900.1-2455
288.8728 10.8195 6.3 15.4 63.3 0.1367 1.8 8.7 GRS 1915+105
299.7376 35.2484 4.3 41.6 56.8 0.6885 2.7 7.7 Cyg X-1
262.9892 -33.9747 5.6 35.7 -119.9 0.2689 2.1 8.4 GX 354-0
278.3918 9.1177 0.7 12.0 20.4 1.1640 16.6 ------ UNKNOWN
299.0446 -28.1911 2.7 30.8 -178.2 0.3476 4.2 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
58.436590 962.212600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4853 35.3560 1.5 34.1 -4.9 6.2734 7.9 1.6 Her X-1
262.8424 -24.6910 4.6 37.1 -124.9 2.8040 2.5 9.7 GX 1+4
268.3182 -1.6535 0.0 14.7 -105.3 1.1267 1.7 12.4 SW J1753.5-0127
270.2349 -25.1255 4.0 35.2 -135.9 2.7418 2.9 3.9 GX 5-1
270.4082 -25.7224 2.4 35.7 -136.4 4.5431 4.9 5.8 GRS 1758-258
274.0178 -14.0760 1.8 23.6 -138.1 3.8703 6.5 2.5 GX 17+2
275.8133 -30.3144 4.5 39.5 -145.2 2.6264 2.5 6.6 H1820-303
285.0384 -24.8797 23.8 34.6 -159.4 -0.3723 -0.5 2.5 HT1900.1-2455
288.8576 11.0019 1.9 10.5 110.0 4.1913 6.2 4.9 GRS 1915+105
299.5956 35.2070 1.7 32.5 64.6 7.5967 6.7 0.4 Cyg X-1
262.8459 -33.7400 11.0 45.3 -130.5 -2.1593 -1.0 9.1 GX 354-0
310.0074 38.0467 3.8 40.5 70.7 8.8203 3.0 ------ UNKNOWN
315.0337 24.4228 3.5 38.1 93.0 6.6812 3.3 ------ UNKNOWN
293.0639 56.6528 3.3 48.9 41.9 10.9792 3.6 ------ UNKNOWN
294.2383 19.1050 4.1 18.3 86.5 1.9262 2.8 ------ UNKNOWN
233.7837 50.3665 5.6 55.2 -1.8 4.1985 2.1 ------ UNKNOWN
236.4266 31.9050 2.9 45.0 -22.1 4.1248 4.0 ------ UNKNOWN
258.2031 -12.3578 2.2 29.4 -105.4 4.7730 5.3 ------ UNKNOWN
229.2427 23.0117 2.4 49.0 -36.1 8.3093 4.9 ------ UNKNOWN
Plot creation:
Sat Jan 20 09:20:02 EST 2018