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
304.1645 -26.9646 0.0093 34.1028 83.0413 4.0745148 20.655 TRIG_00704155
Foreground time interval of the image:
-8.600 45.464 (delta_t = 54.064 [sec])
Background time interval of the image:
-239.576 -8.600 (delta_t = 230.976 [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 -8.600 sec. to 45.464 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.17207 ( -0.129368 0.127129 )
Norm@50keV : 4.71694E-03 ( -0.000329096 0.000328006 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.96 using 59 PHA bins.
# Reduced chi-squared = 1.105 for 57 degrees of freedom
# Null hypothesis probability = 2.735888e-01
Photon flux (15-150 keV) in 54.06 sec: 0.551597 ( -0.040579 0.040811 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.60817e-06 ( -1.92679e-07 1.9349e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -8.600 sec. to 45.464 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.16741 ( -0.261347 0.183282 )
Epeak [keV] : 9999.28 ( -9999.3 -9999.3 )
Norm@50keV : 4.74032E-03 ( -0.000326708 0.00147269 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.00 using 59 PHA bins.
# Reduced chi-squared = 1.125 for 56 degrees of freedom
# Null hypothesis probability = 2.426089e-01
Photon flux (15-150 keV) in 54.06 sec: 0.551486 ( -0.040656 0.04075 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.61762e-06 ( -2.6925e-07 2.56179e-07 ) ergs/cm2
Band function
Time interval is from -8.600 sec. to 45.464 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.921181 ( 0.921979 0.921979 )
beta : -1.17205 ( 1.17206 0.129493 )
Epeak [keV] : 54.4835 ( -53.65 -53.65 )
Norm@50keV : 8.55428E-03 ( -0.00328508 0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.96 using 59 PHA bins.
# Reduced chi-squared = 1.145 for 55 degrees of freedom
# Null hypothesis probability = 2.152858e-01
Photon flux (15-150 keV) in 54.06 sec: 0.551597 ( -0.040579 0.04081 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.60745e-06 ( -1.92622e-07 1.93376e-07 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 20.8292 ( )
R^2/D10^2 : 2.18173E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 119.77 using 59 PHA bins.
# Reduced chi-squared = 2.1013 for 57 degrees of freedom
# Null hypothesis probability = 2.325374e-06
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.701e-08 1.625e-08
25- 50 4.961e-07 5.584e-08
50-150 1.603e-06 1.795e-07
15-150 2.196e-06 2.035e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-13.4238 -200)
Norm : 2.32755 (-0.164542 0.164542)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 92.00 using 59 PHA bins.
# Reduced chi-squared = 1.614 for 57 degrees of freedom
# Null hypothesis probability = 2.276692e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.134e-07 2.544e-08
25- 50 6.029e-07 7.947e-08
50-150 1.322e-06 4.678e-07
15-150 2.239e-06 5.284e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.73480 (-2.22465 2.57194)
R1^2/D10^2 : 0.249344 (-0.133878 0.266319)
kT2 [keV] : 43.1022 (-12.1224 42.0538)
R2^2/D10^2 : 1.94930E-03 (-0.00155608 0.00335701)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.45 using 59 PHA bins.
# Reduced chi-squared = 1.190 for 55 degrees of freedom
# Null hypothesis probability = 1.582371e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.209e-07 6.885e-08
25- 50 5.660e-07 1.587e-07
50-150 1.879e-06 8.511e-07
15-150 2.666e-06 9.571e-07
Peak spectrum fit
Power-law model
Time interval is from 0.060 sec. to 1.060 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.765962 ( -0.278545 0.262469 )
Norm@50keV : 2.01904E-02 ( -0.00318586 0.00311517 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.73 using 59 PHA bins.
# Reduced chi-squared = 0.8198 for 57 degrees of freedom
# Null hypothesis probability = 8.322653e-01
Photon flux (15-150 keV) in 1 sec: 2.32388 ( -0.35068 0.35224 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.39409e-07 ( -3.71863e-08 3.73107e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.060 sec. to 1.060 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.758009 ( -1.16153 0.285331 )
Epeak [keV] : 10000.00 ( -10000 -10000 )
Norm@50keV : 2.03393E-02 ( -0.00319978 0.00294086 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.73 using 59 PHA bins.
# Reduced chi-squared = 0.8344 for 56 degrees of freedom
# Null hypothesis probability = 8.066777e-01
Photon flux (15-150 keV) in 1 sec: 2.32233 ( -0.35847 0.35287 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.39343e-07 ( -3.75575e-08 3.563e-08 ) ergs/cm2
Band function
Time interval is from 0.060 sec. to 1.060 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.787843 ( 0.787843 0.787843 )
beta : -0.765966 ( -0.2624 0.278549 )
Epeak [keV] : 15.3964 ( -15.3964 -15.3964 )
Norm@50keV : 2.97233E-02 ( -0.0125403 0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.73 using 59 PHA bins.
# Reduced chi-squared = 0.8496 for 55 degrees of freedom
# Null hypothesis probability = 7.786077e-01
Photon flux (15-150 keV) in 1 sec: 2.32388 ( -0.35068 0.35224 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.67433e-23 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 28.8982 (-5.47193 7.83394)
R^2/D10^2 : 3.92403E-02 (-0.0192771 0.0333803)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.16 using 59 PHA bins.
# Reduced chi-squared = 0.9326 for 57 degrees of freedom
# Null hypothesis probability = 6.199497e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.245e-09 1.930e-09
25- 50 3.185e-08 8.095e-09
50-150 1.904e-07 5.205e-08
15-150 2.275e-07 6.210e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-31.8143 -200)
Norm : 9.06931 (-1.45076 1.45076)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 70.36 using 59 PHA bins.
# Reduced chi-squared = 1.234 for 57 degrees of freedom
# Null hypothesis probability = 1.100883e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.257e-08 1.300e-08
25- 50 4.343e-08 2.482e-08
50-150 9.524e-08 5.375e-08
15-150 1.612e-07 9.180e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.94991 (-2.45527 5.14578)
R1^2/D10^2 : 2.54423 (-2.26043 21.0425)
kT2 [keV] : 36.6615 (-9.02004 22.0694)
R2^2/D10^2 : 1.85757E-02 (-0.0132749 0.0236618)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.99 using 59 PHA bins.
# Reduced chi-squared = 0.8179 for 55 degrees of freedom
# Null hypothesis probability = 8.302807e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.525e-08 8.627e-09
25- 50 3.432e-08 1.722e-08
50-150 1.954e-07 1.071e-07
15-150 2.449e-07 1.216e-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: 1.17207 ( -0.129368 0.127129 )
Norm@50keV : 4.71694E-03 ( -0.000329096 0.000328006 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.96 using 59 PHA bins.
# Reduced chi-squared = 1.105 for 57 degrees of freedom
# Null hypothesis probability = 2.735888e-01
Photon flux (15-150 keV) in 54.06 sec: 0.551598 ( -0.0405791 0.040807 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.60791e-06 ( -1.92582e-07 1.93669e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.16741 ( -0.194373 0.182454 )
Epeak [keV] : 9999.32 ( -9999.33 -9999.33 )
Norm@50keV : 4.74032E-03 ( -0.000326708 0.00147269 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 63.00 using 59 PHA bins.
# Reduced chi-squared = 1.125 for 56 degrees of freedom
# Null hypothesis probability = 2.426090e-01
Photon flux (15-150 keV) in 54.06 sec: 0.551917 ( -0.020556 0.040218 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.60152e-06 ( -1.86139e-07 1.96784e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.921181 ( 0.921979 0.921979 )
beta : -1.17205 ( 1.17206 0.129493 )
Epeak [keV] : 54.4835 ( -53.65 -53.65 )
Norm@50keV : 8.55428E-03 ( -0.00328508 0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.96 using 59 PHA bins.
# Reduced chi-squared = 1.145 for 55 degrees of freedom
# Null hypothesis probability = 2.152858e-01
Photon flux (15-150 keV) in 54.06 sec: 0.551597 ( -0.040579 0.04081 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.60745e-06 ( -1.92622e-07 1.93376e-07 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 5.38e-07
S(50-100 keV) = 9.57e-07
T90 vs. Hardness ratio plot
T90 = 44.527999997139 sec.
Hardness ratio (energy fluence ratio) = 1.77881
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.52784
Count Ratio (50-100 keV) / (15-25 keV) = 1.45452
Mask shadow pattern
IMX = 8.203585768876454E-02, IMY = -6.721345265118608E-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:
-239.576000 -8.600000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
268.2916 -1.2999 13.7 41.1 155.9 -0.3337 -0.8 10.2 SW J1753.5-0127
273.9879 -14.0329 5.0 40.3 134.5 1.1343 2.3 1.1 GX 17+2
285.1404 -24.8769 5.8 39.1 110.9 1.3936 2.0 6.3 HT1900.1-2455
288.8478 10.8709 4.4 20.0 178.9 0.5147 2.6 5.3 GRS 1915+105
299.5797 35.1913 0.3 29.5 -119.3 10.6245 37.6 0.8 Cyg X-1
308.1080 40.9990 2.1 34.1 -104.9 2.1762 5.5 2.8 Cyg X-3
325.9882 38.2205 58.8 35.1 -80.1 -0.0891 -0.2 10.6 Cyg X-2
319.0299 -33.2271 3.0 41.3 62.7 2.8099 3.8 ------ UNKNOWN
347.8492 29.0375 2.6 43.0 -50.1 2.1657 4.4 ------ UNKNOWN
359.5853 26.2438 2.4 52.1 -42.2 4.5633 4.8 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-8.600000 45.464000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
268.4937 -1.6225 0.0 41.0 155.4 -0.1948 -1.1 12.7 SW J1753.5-0127
274.1101 -14.2281 4.1 40.3 134.2 -0.6060 -2.8 13.0 GX 17+2
285.1532 -24.9993 4.0 39.2 110.7 -0.9570 -2.9 7.9 HT1900.1-2455
288.9608 10.9799 4.4 19.9 179.2 -0.2248 -2.6 9.8 GRS 1915+105
299.6267 35.1706 57.9 29.5 -119.3 0.0250 0.2 2.6 Cyg X-1
308.0145 40.8158 60.7 34.0 -105.0 0.0315 0.2 9.3 Cyg X-3
326.1948 38.4761 4.8 35.4 -80.1 -0.4386 -2.4 9.3 Cyg X-2
304.1645 -26.9646 0.6 34.1 83.0 4.0746 20.6 ------ UNKNOWN
277.8485 5.7624 2.4 30.7 165.6 0.5187 4.8 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
225.724610 357.148400
420.424000 847.724600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.6312 22.0143 0.2 21.3 -99.1 22.6884 49.3 0.1 Crab
36.2303 -18.8778 3.4 44.4 40.8 3.9931 3.4 ------ UNKNOWN
21.4966 56.6938 2.6 48.8 157.8 5.9311 4.4 ------ UNKNOWN
60.8090 60.3120 2.5 42.4 -174.8 3.1200 4.6 ------ UNKNOWN
Plot creation:
Sun Jul 31 21:48:47 EDT 2016