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
176.9390 -65.1419 0.0046 32.6557 26.2261 6.2026132 41.972 TRIG_00701503
Foreground time interval of the image:
-15.036 47.412 (delta_t = 62.448 [sec])
Background time interval of the image:
-223.635 -15.036 (delta_t = 208.599 [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 -15.036 sec. to 47.412 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.08572 ( -0.0738729 0.0749813 )
Norm@50keV : 5.70478E-03 ( -0.000234604 0.000232899 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 37.66 using 59 PHA bins.
# Reduced chi-squared = 0.6607 for 57 degrees of freedom
# Null hypothesis probability = 9.775503e-01
Photon flux (15-150 keV) in 62.45 sec: 0.891310 ( -0.034842 0.034995 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.30623e-06 ( -1.25676e-07 1.26208e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -15.036 sec. to 47.412 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.91665 ( -0.308917 0.17478 )
Epeak [keV] : 22.7086 ( -20.9684 27.2246 )
Norm@50keV : 7.00540E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.67 using 59 PHA bins.
# Reduced chi-squared = 0.6548 for 56 degrees of freedom
# Null hypothesis probability = 9.787289e-01
Photon flux (15-150 keV) in 62.45 sec: 0.879768 ( -0.039735 0.037141 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from -15.036 sec. to 47.412 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.91648 ( -6.19009 0.0910079 )
beta : -10.00000 ( 10 2.84217e-14 )
Epeak [keV] : 22.7321 ( -12.2709 17.5023 )
Norm@50keV : 7.00463E-03 ( -0.000249766 0.00312224 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.67 using 59 PHA bins.
# Reduced chi-squared = 0.6667 for 55 degrees of freedom
# Null hypothesis probability = 9.729632e-01
Photon flux (15-150 keV) in 62.45 sec: 0.868543 ( -0.042115 0.041726 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.11097e-06 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.6800 ( )
R^2/D10^2 : 0.293940 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 202.31 using 59 PHA bins.
# Reduced chi-squared = 3.5492 for 57 degrees of freedom
# Null hypothesis probability = 3.833682e-18
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.347e-07 2.767e-08
25- 50 1.183e-06 5.058e-08
50-150 7.445e-07 7.432e-08
15-150 2.362e-06 9.555e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 65.7358 (-7.2263 8.64502)
Norm : 4.31756 (-0.294238 0.321034)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.93 using 59 PHA bins.
# Reduced chi-squared = 0.8057 for 57 degrees of freedom
# Null hypothesis probability = 8.530168e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.867e-07 3.778e-08
25- 50 1.074e-06 4.090e-08
50-150 1.315e-06 1.168e-07
15-150 3.075e-06 1.261e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.56355 (-0.771257 0.77174)
R1^2/D10^2 : 1.50914 (-0.492896 0.887411)
kT2 [keV] : 23.1374 (-3.7305 5.49061)
R2^2/D10^2 : 1.01523E-02 (-0.00553982 0.0104367)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.42 using 59 PHA bins.
# Reduced chi-squared = 0.8258 for 55 degrees of freedom
# Null hypothesis probability = 8.181600e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.684e-07 5.880e-08
25- 50 1.065e-06 8.212e-08
50-150 1.430e-06 2.676e-07
15-150 3.164e-06 3.307e-07
Peak spectrum fit
Power-law model
Time interval is from 35.072 sec. to 36.072 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.97037 ( -0.145685 0.151224 )
Norm@50keV : 2.02823E-02 ( -0.00197016 0.00193653 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.89 using 59 PHA bins.
# Reduced chi-squared = 0.9455 for 57 degrees of freedom
# Null hypothesis probability = 5.923430e-01
Photon flux (15-150 keV) in 1 sec: 3.00186 ( -0.24693 0.24711 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.86819e-07 ( -1.72994e-08 1.74865e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 35.072 sec. to 36.072 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.63316 ( -0.638772 0.55225 )
Epeak [keV] : 47.6538 ( )
Norm@50keV : 3.13839E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.85 using 59 PHA bins.
# Reduced chi-squared = 0.9437 for 56 degrees of freedom
# Null hypothesis probability = 5.949192e-01
Photon flux (15-150 keV) in 1 sec: 2.96580 ( -0.25431 0.25412 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from 35.072 sec. to 36.072 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 8.54025E-02 ( -2.33575 -0.0825126 )
beta : -2.17214 ( 2.1706 0.247027 )
Epeak [keV] : 30.4427 ( -11.4207 32.8635 )
Norm@50keV : 0.507089 ( -0.499913 2185.05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.73 using 59 PHA bins.
# Reduced chi-squared = 0.9223 for 55 degrees of freedom
# Null hypothesis probability = 6.384352e-01
Photon flux (15-150 keV) in 1 sec: 3.00186 ( -0.24693 0.24711 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.17117e-14 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.94620 (-1.00509 1.15581)
R^2/D10^2 : 1.40808 (-0.484973 0.721007)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 88.46 using 59 PHA bins.
# Reduced chi-squared = 1.552 for 57 degrees of freedom
# Null hypothesis probability = 4.774733e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.832e-08 4.190e-09
25- 50 6.987e-08 6.585e-09
50-150 3.590e-08 8.585e-09
15-150 1.341e-07 1.390e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 72.8751 (-16.6204 24.865)
Norm : 14.5073 (-1.8437 2.1763)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.53 using 59 PHA bins.
# Reduced chi-squared = 0.9391 for 57 degrees of freedom
# Null hypothesis probability = 6.061812e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.737e-08 4.295e-09
25- 50 6.009e-08 4.830e-09
50-150 7.949e-08 1.700e-08
15-150 1.770e-07 1.940e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.55926 (-1.20554 1.26678)
R1^2/D10^2 : 5.36967 (-2.46255 3.43071)
kT2 [keV] : 24.0944 (-6.27903 13.9746)
R2^2/D10^2 : 3.21066E-02 (-0.0256185 0.0754936)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.71 using 59 PHA bins.
# Reduced chi-squared = 0.9220 for 55 degrees of freedom
# Null hypothesis probability = 6.390849e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.781e-08 1.123e-08
25- 50 5.990e-08 1.487e-08
50-150 8.483e-08 4.267e-08
15-150 1.826e-07 5.978e-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: 2.08572 ( -0.0738729 0.0749813 )
Norm@50keV : 5.70478E-03 ( -0.000234604 0.000232899 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 37.66 using 59 PHA bins.
# Reduced chi-squared = 0.6607 for 57 degrees of freedom
# Null hypothesis probability = 9.775503e-01
Photon flux (15-150 keV) in 62.45 sec: 0.891239 ( -0.0348362 0.0349877 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.30564e-06 ( -1.25747e-07 1.26191e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.91681 ( -0.309079 0.175064 )
Epeak [keV] : 22.6857 ( -20.9439 27.2498 )
Norm@50keV : 7.00399E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.67 using 59 PHA bins.
# Reduced chi-squared = 0.6548 for 56 degrees of freedom
# Null hypothesis probability = 9.787289e-01
Photon flux (15-150 keV) in 62.45 sec: 0.879518 ( -0.03969 0.039765 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.2514e-06 ( -1.56687e-07 1.53271e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.91648 ( -6.19009 0.0910079 )
beta : -10.00000 ( 10 20 )
Epeak [keV] : 22.7321 ( -12.2708 17.5023 )
Norm@50keV : 7.00463E-03 ( -0.000249766 0.00312224 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.67 using 59 PHA bins.
# Reduced chi-squared = 0.6667 for 55 degrees of freedom
# Null hypothesis probability = 9.729632e-01
Photon flux (15-150 keV) in 62.45 sec: 0.868543 ( -0.042115 0.041726 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.11097e-06 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 1.02e-06
S(50-100 keV) = 9.62e-07
T90 vs. Hardness ratio plot
T90 = 53.9199999570847 sec.
Hardness ratio (energy fluence ratio) = 0.943137
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.04358
Count Ratio (50-100 keV) / (15-25 keV) = 0.509959
Mask shadow pattern
IMX = 5.749219583029950E-01, IMY = -2.832223970030819E-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:
-223.635410 -15.036000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.6279 -40.5209 4.4 39.0 -32.7 0.7680 2.6 5.0 Vela X-1
170.5794 -60.6355 6.4 34.2 16.9 0.4394 1.8 7.8 Cen X-3
186.6440 -62.7894 3.7 37.1 29.6 0.9524 3.1 1.2 GX 301-2
38.3719 -29.7494 2.7 47.4 -160.9 1.6146 4.2 ------ UNKNOWN
37.1204 -21.0731 3.2 55.9 -158.6 3.4513 3.6 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-15.036000 47.412000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
135.5975 -40.3913 0.0 39.2 -32.8 -0.1867 -1.2 10.3 Vela X-1
170.6001 -60.6056 7.7 34.3 16.9 -0.2163 -1.5 8.4 Cen X-3
186.5725 -62.7819 7.5 37.1 29.5 -0.2734 -1.5 2.4 GX 301-2
298.8094 -68.0625 2.4 40.7 96.2 2.2284 4.7 ------ UNKNOWN
184.5102 -47.8549 2.0 49.3 16.7 1.6375 5.8 ------ UNKNOWN
176.9390 -65.1419 0.3 32.7 26.2 6.2028 42.0 ------ UNKNOWN
16.5637 -45.1538 2.6 40.8 167.0 0.8387 4.5 ------ UNKNOWN
101.1241 -66.0845 2.8 7.0 -31.1 0.4001 4.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
Plot creation:
Fri Jul 15 14:46:11 EDT 2016