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
280.5410 -30.0381 0.0169 26.8576 42.3843 0.5203280 11.371 TRIG_00741965
Foreground time interval of the image:
-3.696 6.304 (delta_t = 10.000 [sec])
Background time interval of the image:
-364.195 -346.257 (delta_t = 17.938 [sec])
-239.696 -3.696 (delta_t = 236.000 [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 -3.696 sec. to 6.304 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.30051 ( -0.34072 0.329556 )
Norm@50keV : 3.08880E-03 ( -0.000506426 0.00050624 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.21 using 59 PHA bins.
# Reduced chi-squared = 1.039 for 57 degrees of freedom
# Null hypothesis probability = 3.948529e-01
Photon flux (15-150 keV) in 10 sec: 0.368538 ( -0.063277 0.063514 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.05232e-07 ( -5.63921e-08 5.69359e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -3.696 sec. to 6.304 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.88115 ( -1.05416 0.209231 )
Epeak [keV] : 260.144 ( )
Norm@50keV : 4.97642E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.98 using 59 PHA bins.
# Reduced chi-squared = 0.9997 for 56 degrees of freedom
# Null hypothesis probability = 4.755420e-01
Photon flux (15-150 keV) in 10 sec: 0.368571 ( -0.063456 0.063399 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.02093e-07 ( 0 0 ) ergs/cm2
Band function
Time interval is from -3.696 sec. to 6.304 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] : 19.6069 (-6.38761 11.0226)
R^2/D10^2 : 1.62399E-02 (-0.0157996 0.0440913)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 79.64 using 59 PHA bins.
# Reduced chi-squared = 1.397 for 57 degrees of freedom
# Null hypothesis probability = 2.550795e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.213e-08 4.449e-09
25- 50 5.962e-08 2.259e-08
50-150 1.694e-07 6.415e-08
15-150 2.411e-07 7.215e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-68.2876 -200)
Norm : 1.52135 (-0.253858 0.253858)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.87 using 59 PHA bins.
# Reduced chi-squared = 1.103 for 57 degrees of freedom
# Null hypothesis probability = 2.763002e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.789e-08 2.186e-08
25- 50 7.288e-08 4.164e-08
50-150 1.598e-07 9.135e-08
15-150 2.706e-07 1.527e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.52040 (-2.80023 3.1542)
R1^2/D10^2 : 0.355563 (-0.244382 0.418869)
kT2 [keV] : 76.1815 (-47.3488 -80.6939)
R2^2/D10^2 : 3.64326E-04 (-0.000244116 0.00244448)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.68 using 59 PHA bins.
# Reduced chi-squared = 1.012 for 55 degrees of freedom
# Null hypothesis probability = 4.488489e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.623e-08 2.070e-08
25- 50 6.697e-08 3.718e-08
50-150 2.281e-07 1.288e-07
15-150 3.313e-07 1.776e-07
Peak spectrum fit
Power-law model
Time interval is from 1.304 sec. to 2.304 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.07143 ( -0.671486 0.612438 )
Norm@50keV : 4.98828E-03 ( -0.00168986 0.00164984 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.24 using 59 PHA bins.
# Reduced chi-squared = 1.057 for 57 degrees of freedom
# Null hypothesis probability = 3.592473e-01
Photon flux (15-150 keV) in 1 sec: 0.577111 ( -0.197823 0.200399 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.26441e-08 ( -1.8406e-08 1.86839e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 1.304 sec. to 2.304 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.06606 ( -4.46588 -0.848889 )
Epeak [keV] : 9995.80 ( -9996.83 -9996.83 )
Norm@50keV : 5.01600E-03 ( -0.00164689 0.292122 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.24 using 59 PHA bins.
# Reduced chi-squared = 1.076 for 56 degrees of freedom
# Null hypothesis probability = 3.248966e-01
Photon flux (15-150 keV) in 1 sec: 0.579311 ( -0.213809 0.200403 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.28141e-08 ( -2.04137e-08 1.68437e-08 ) ergs/cm2
Band function
Time interval is from 1.304 sec. to 2.304 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] : 21.5806 (-7.38327 15.8013)
R^2/D10^2 : 2.13381E-02 (-0.0213226 0.0619088)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.60 using 59 PHA bins.
# Reduced chi-squared = 1.081 for 57 degrees of freedom
# Null hypothesis probability = 3.148367e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.855e-09 1.209e-09
25- 50 9.698e-09 5.915e-09
50-150 3.372e-08 2.255e-08
15-150 4.527e-08 2.779e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 (-110.907 -199.363)
Norm : 2.41378 (-0.817812 0.817846)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.14 using 59 PHA bins.
# Reduced chi-squared = 1.090 for 57 degrees of freedom
# Null hypothesis probability = 2.981912e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.011e-09 3.834e-09
25- 50 1.156e-08 7.275e-09
50-150 2.536e-08 1.622e-08
15-150 4.293e-08 2.691e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.62270 (-2.62306 29.1923)
R1^2/D10^2 : 38.4050 (-38.3728 711.54)
kT2 [keV] : 23.7998 (-8.60311 -23.8003)
R2^2/D10^2 : 1.51365E-02 (-0.0151353 0.0402988)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.05 using 59 PHA bins.
# Reduced chi-squared = 1.092 for 55 degrees of freedom
# Null hypothesis probability = 2.978277e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.491e-09 2.277e-09
25- 50 8.710e-09 5.195e-09
50-150 3.567e-08 2.293e-08
15-150 4.887e-08 2.983e-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: 1.30051 ( -0.34072 0.329556 )
Norm@50keV : 3.08880E-03 ( -0.000506426 0.00050624 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.21 using 59 PHA bins.
# Reduced chi-squared = 1.039 for 57 degrees of freedom
# Null hypothesis probability = 3.948529e-01
Photon flux (15-150 keV) in 10 sec: 0.368553 ( -0.0632839 0.063501 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.05195e-07 ( -5.63827e-08 5.6957e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.92124 ( -1.0506 0.239258 )
Epeak [keV] : 269.179 ( )
Norm@50keV : 4.77802E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.98 using 59 PHA bins.
# Reduced chi-squared = 0.9996 for 56 degrees of freedom
# Null hypothesis probability = 4.757096e-01
Photon flux (15-150 keV) in 10 sec: 0.370974 ( -0.066554 0.061434 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.03858e-07 ( -5.5199e-08 2.9845e-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) = 6.80e-08
S(50-100 keV) = 1.10e-07
T90 vs. Hardness ratio plot
T90 = 9 sec.
Hardness ratio (energy fluence ratio) = 1.61765
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.21386
Count Ratio (50-100 keV) / (15-25 keV) = 0.932536
Mask shadow pattern
IMX = 3.740470756710060E-01, IMY = -3.413637314041561E-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:
-364.195410 -346.257400
-239.696000 -3.696000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
263.0164 -24.8014 3.2 38.6 64.0 2.5032 3.6 3.4 GX 1+4
264.7339 -44.4432 9.1 45.6 36.4 0.9076 1.3 0.6 4U 1735-44
268.3707 -1.4803 812.1 34.0 104.3 0.0082 0.0 1.7 SW J1753.5-0127
270.3493 -25.0388 6.5 32.3 60.3 0.8116 1.8 4.3 GX 5-1
270.3380 -25.6139 34.1 32.5 59.3 0.1539 0.3 8.0 GRS 1758-258
274.0174 -14.0123 4.4 26.6 81.0 0.9760 2.6 1.6 GX 17+2
275.8760 -30.4775 3.7 30.3 46.7 1.1077 3.2 7.1 H1820-303
285.1866 -25.0834 0.0 20.5 45.3 0.2022 0.8 12.8 HT1900.1-2455
288.8225 10.9470 1.4 25.3 150.6 2.3318 8.1 1.4 GRS 1915+105
299.5811 35.1945 0.8 46.4 178.2 8.4028 14.5 0.6 Cyg X-1
307.9857 41.0008 19.2 52.6 -173.5 -0.4814 -0.6 6.3 Cyg X-3
326.1559 38.2015 8.7 54.7 -156.0 1.7243 1.3 7.2 Cyg X-2
263.0459 -33.8099 7.3 41.5 50.7 1.1674 1.6 3.2 GX 354-0
267.2983 22.0302 2.4 47.0 135.0 5.6801 4.8 ------ UNKNOWN
258.4530 -43.0451 2.3 48.7 41.2 5.3510 5.2 ------ UNKNOWN
328.4911 -57.6657 2.7 50.9 -18.5 2.5327 4.3 ------ UNKNOWN
347.5778 -41.6092 4.2 50.6 -44.5 4.4726 2.7 ------ UNKNOWN
339.7445 13.0362 3.0 45.3 -121.3 4.8149 3.8 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-3.696000 6.304000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
262.9346 -24.6212 7.3 38.6 64.3 0.1808 1.6 8.5 GX 1+4
264.8100 -44.6278 7.2 45.7 36.1 0.1849 1.6 11.0 4U 1735-44
268.4187 -1.4637 10.6 33.9 104.3 0.0809 1.1 3.1 SW J1753.5-0127
270.1240 -25.0764 12.8 32.5 60.4 -0.0607 -0.9 8.7 GX 5-1
270.1489 -25.6802 52.4 32.6 59.3 -0.0146 -0.2 9.1 GRS 1758-258
274.1567 -14.0801 10.9 26.5 80.9 0.0598 1.1 9.2 GX 17+2
275.9045 -30.3656 279.3 30.3 46.9 0.0022 0.0 1.1 H1820-303
284.9934 -24.9033 5.3 20.5 46.0 -0.0880 -2.2 2.5 HT1900.1-2455
288.9029 11.0966 6.0 25.4 151.0 -0.0842 -1.9 11.0 GRS 1915+105
299.7183 35.3532 0.0 46.6 178.4 -0.1079 -1.3 11.0 Cyg X-1
308.0895 40.9183 4.7 52.5 -173.4 0.2830 2.4 2.3 Cyg X-3
326.1141 38.1874 6.1 54.6 -156.0 -0.3100 -1.9 8.5 Cyg X-2
262.8543 -33.6452 0.0 41.5 51.1 0.2203 2.0 13.2 GX 354-0
270.4292 24.7343 2.1 46.8 140.4 0.8264 5.5 ------ UNKNOWN
280.5410 -30.0381 1.0 26.9 42.4 0.5205 11.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
88.804590 962.370500
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9801 -15.6468 0.8 35.7 112.5 27.1832 14.0 0.4 Sco X-1
255.9905 -37.8508 0.6 21.8 69.2 20.9187 20.8 0.4 4U 1700-377
256.4200 -36.3684 3.4 21.1 73.0 3.5300 3.4 3.4 GX 349+2
262.9739 -24.7008 1.8 16.5 111.4 5.0868 6.4 3.3 GX 1+4
264.6708 -44.5924 6.3 19.2 43.2 1.6075 1.8 9.1 4U 1735-44
268.2372 -1.4674 7.9 30.9 162.1 1.6545 1.5 7.9 SW J1753.5-0127
270.3000 -25.0088 4.4 10.4 123.3 2.2835 2.6 4.3 GX 5-1
270.3102 -25.7512 5.8 10.1 119.7 1.7691 2.0 0.6 GRS 1758-258
274.0692 -13.9096 3.1 17.2 164.9 3.0272 3.7 8.5 GX 17+2
275.7484 -30.3408 5.6 4.2 91.8 1.6030 2.1 9.3 H1820-303
285.2148 -24.9883 9.5 6.5 -133.4 -1.0025 -1.2 10.5 HT1900.1-2455
288.8270 10.9437 2.3 41.8 -161.1 8.0206 5.1 1.7 GRS 1915+105
262.9772 -33.8470 5.4 15.4 78.0 1.8458 2.2 0.9 GX 354-0
222.3124 -59.7431 3.3 48.5 41.6 11.6865 3.5 ------ UNKNOWN
259.8942 -25.0215 0.4 19.0 107.1 20.7942 26.1 ------ UNKNOWN
287.7513 -58.8460 3.1 29.2 -0.9 3.4804 3.8 ------ UNKNOWN
298.9399 -21.2176 3.5 18.7 -107.2 3.4346 3.4 ------ UNKNOWN
294.0525 23.2156 3.1 54.8 -158.1 15.4903 3.7 ------ UNKNOWN
343.7081 -47.3913 4.9 50.7 -44.6 17.0941 2.3 ------ UNKNOWN
314.6843 1.5319 2.3 45.3 -121.3 26.6629 5.1 ------ UNKNOWN
Plot creation:
Thu Apr 13 21:37:06 EDT 2017