Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
272.3624 +72.0449 0.0603 32.3 -115.2 0.1034 3.2 TRIG_00704327
------------------------------------------
Foreground time interval of the image:
0.000 3.072 (delta_t = 3.072 [sec])
Background time interval of the image:
-112.579 -10.880 (delta_t = 101.699 [sec])
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) 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.
- 5) 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.
- 6) 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 3.072000
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 3.072000
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 3.072000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of 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.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Time interval is from 0.000 sec. to 3.072 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.39802 ( -0.766628 0.728787 )
Norm@50keV : 2.06070E-03 ( -0.00107911 0.00104554 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.19 using 59 PHA bins.
# Reduced chi-squared = 1.056 for 57 degrees of freedom
# Null hypothesis probability = 3.609330e-01
Photon flux (15-150 keV) in 3.072 sec: 0.252542 ( -0.130526 0.133066 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.99925e-08 ( -3.27638e-08 3.37195e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 3.072 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -7.70842 ( 7.74681 6.14456 )
Epeak [keV] : 49.0911 ( -9.561 14.2309 )
Norm@50keV : 98.5718 ( -111.06 2003.2 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.66 using 59 PHA bins.
# Reduced chi-squared = 0.9225 for 56 degrees of freedom
# Null hypothesis probability = 6.397349e-01
Photon flux (15-150 keV) in 3.072 sec: 0.226957 ( -0.091396 0.111087 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.94454e-08 ( -1.98909e-08 2.48393e-08 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 3.072 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 5.00000 ( -3.83435 -5 )
beta : -10.0000 ( 10 10 )
Epeak [keV] : 50.8373 ( -10.015 13.4918 )
Norm@50keV : 4.46824 ( -1.72078 13.9161 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.11 using 59 PHA bins.
# Reduced chi-squared = 0.9475 for 55 degrees of freedom
# Null hypothesis probability = 5.855978e-01
Photon flux (15-150 keV) in 3.072 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.4477e-08 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 14.3233 (-3.87308 6.12486)
R^2/D10^2 : 4.39591E-02 (-0.0438946 0.0899926)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.48 using 59 PHA bins.
# Reduced chi-squared = 0.9558 for 57 degrees of freedom
# Null hypothesis probability = 5.702567e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.838e-09 3.941e-09
25- 50 2.221e-08 1.398e-08
50-150 3.034e-08 2.295e-08
15-150 5.839e-08 3.803e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 174.875 (-174.875 -174.875)
Norm : 1.08621 (-0.545271 0.774141)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.46 using 59 PHA bins.
# Reduced chi-squared = 1.043 for 57 degrees of freedom
# Null hypothesis probability = 3.862882e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.442e-09 5.657e-09
25- 50 1.598e-08 9.999e-09
50-150 3.348e-08 2.238e-08
15-150 5.791e-08 3.774e-08
Double BB
# Reduced chi-squared = 0.9679 for 55 degrees of freedom
# Reduced chi-squared = 0.9653 for 55 degrees of freedom
# Reduced chi-squared = 0.9639 for 55 degrees of freedom
# Reduced chi-squared = 0.9631 for 55 degrees of freedom
# Reduced chi-squared = 0.9627 for 55 degrees of freedom
# Reduced chi-squared = 0.9625 for 55 degrees of freedom
# Null hypothesis probability = 5.339856e-01
# Null hypothesis probability = 5.424384e-01
# Null hypothesis probability = 5.478616e-01
# Null hypothesis probability = 5.509435e-01
# Null hypothesis probability = 5.525378e-01
# Null hypothesis probability = 5.533502e-01
# Null hypothesis probability = 5.537719e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.945e-09 3.685e-09
25- 50 2.130e-08 1.333e-08
50-150 3.083e-08 2.315e-08
15-150 5.808e-08 3.937e-08
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 3.072 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.39802 ( -0.766628 0.728787 )
Norm@50keV : 2.06070E-03 ( -0.00107911 0.00104554 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.19 using 59 PHA bins.
# Reduced chi-squared = 1.056 for 57 degrees of freedom
# Null hypothesis probability = 3.609330e-01
Photon flux (15-150 keV) in 3.072 sec: 0.252542 ( -0.130526 0.133066 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.99925e-08 ( -3.27638e-08 3.37195e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 3.072 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -7.70842 ( 7.74681 6.14456 )
Epeak [keV] : 49.0911 ( -9.561 14.2309 )
Norm@50keV : 98.5718 ( -111.06 2003.2 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.66 using 59 PHA bins.
# Reduced chi-squared = 0.9225 for 56 degrees of freedom
# Null hypothesis probability = 6.397349e-01
Photon flux (15-150 keV) in 3.072 sec: 0.226957 ( -0.091396 0.111087 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.94454e-08 ( -1.98909e-08 2.48393e-08 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 3.072 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 5.00000 ( -3.83435 -5 )
beta : -10.0000 ( 10 10 )
Epeak [keV] : 50.8373 ( -10.015 13.4918 )
Norm@50keV : 4.46824 ( -1.72078 13.9161 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.11 using 59 PHA bins.
# Reduced chi-squared = 0.9475 for 55 degrees of freedom
# Null hypothesis probability = 5.855978e-01
Photon flux (15-150 keV) in 3.072 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.4477e-08 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 14.3233 (-3.87308 6.12486)
R^2/D10^2 : 4.39591E-02 (-0.0438946 0.0899926)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.48 using 59 PHA bins.
# Reduced chi-squared = 0.9558 for 57 degrees of freedom
# Null hypothesis probability = 5.702567e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.838e-09 3.906e-09
25- 50 2.221e-08 1.434e-08
50-150 3.034e-08 2.293e-08
15-150 5.839e-08 3.875e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 174.875 (-174.875 -174.875)
Norm : 1.08621 (-0.545271 0.774141)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.46 using 59 PHA bins.
# Reduced chi-squared = 1.043 for 57 degrees of freedom
# Null hypothesis probability = 3.862882e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.442e-09 5.809e-09
25- 50 1.598e-08 1.007e-08
50-150 3.348e-08 2.293e-08
15-150 5.791e-08 3.869e-08
Double BB
# Reduced chi-squared = 0.9679 for 55 degrees of freedom
# Reduced chi-squared = 0.9653 for 55 degrees of freedom
# Reduced chi-squared = 0.9639 for 55 degrees of freedom
# Reduced chi-squared = 0.9631 for 55 degrees of freedom
# Reduced chi-squared = 0.9627 for 55 degrees of freedom
# Reduced chi-squared = 0.9625 for 55 degrees of freedom
# Null hypothesis probability = 5.339856e-01
# Null hypothesis probability = 5.424384e-01
# Null hypothesis probability = 5.478616e-01
# Null hypothesis probability = 5.509435e-01
# Null hypothesis probability = 5.525378e-01
# Null hypothesis probability = 5.533502e-01
# Null hypothesis probability = 5.537719e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.945e-09 3.686e-09
25- 50 2.130e-08 1.262e-08
50-150 3.083e-08 2.307e-08
15-150 5.808e-08 3.792e-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: 1.39802 ( -0.766628 0.728787 )
Norm@50keV : 2.06070E-03 ( -0.00107911 0.00104554 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.19 using 59 PHA bins.
# Reduced chi-squared = 1.056 for 57 degrees of freedom
# Null hypothesis probability = 3.609330e-01
Photon flux (15-150 keV) in 3.072 sec: 0.252542 ( -0.130526 0.133066 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.99925e-08 ( -3.27638e-08 3.37195e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -7.70842 ( 7.74681 6.14456 )
Epeak [keV] : 49.0911 ( -9.561 14.2309 )
Norm@50keV : 98.5718 ( -111.06 2003.2 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.66 using 59 PHA bins.
# Reduced chi-squared = 0.9225 for 56 degrees of freedom
# Null hypothesis probability = 6.397349e-01
Photon flux (15-150 keV) in 3.072 sec: 0.226957 ( -0.091396 0.111087 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.94454e-08 ( -1.98909e-08 2.48393e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 5.00000 ( -3.83435 -5 )
beta : -10.0000 ( 10 10 )
Epeak [keV] : 50.8373 ( -10.015 13.4918 )
Norm@50keV : 4.46824 ( -1.72078 13.9161 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.11 using 59 PHA bins.
# Reduced chi-squared = 0.9475 for 55 degrees of freedom
# Null hypothesis probability = 5.855978e-01
Photon flux (15-150 keV) in 3.072 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 5.4477e-08 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 1.45e-08
S(50-100 keV) = 2.12e-08
T90 vs. Hardness ratio plot
T90 = 3.07200002670288 sec.
Hardness ratio (energy fluence ratio) = 1.46207
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = -4.57746
Count Ratio (50-100 keV) / (15-25 keV) = -2.36232
Mask shadow pattern
IMX = -2.685628538033425E-01, IMY = 5.715934933205262E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 3.072000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 3.072000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 3.072000
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:
-112.579410 -10.880000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4100 35.4442 2.8 39.3 178.6 0.7942 4.2 6.5 Her X-1
288.6549 11.0991 0.0 35.7 111.6 0.1814 0.6 12.5 GRS 1915+105
299.5825 35.2097 0.4 9.6 111.4 3.5492 28.7 0.6 Cyg X-1
308.0715 40.9187 1.6 3.6 45.0 0.8616 7.4 2.7 Cyg X-3
326.1669 38.4632 7.4 16.7 4.5 -0.1872 -1.6 8.5 Cyg X-2
337.0762 22.9774 2.1 33.5 21.0 0.8268 5.5 ------ UNKNOWN
240.5518 26.4560 2.4 54.1 177.0 2.4284 4.9 ------ UNKNOWN
316.9792 51.1560 2.3 10.9 -53.8 0.5900 5.1 ------ UNKNOWN
348.7020 68.1802 3.0 33.2 -69.1 0.8727 3.8 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 3.072000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6645 35.2959 5.5 39.2 178.3 0.0613 2.1 10.5 Her X-1
288.9022 10.8727 2.6 35.8 111.0 0.1922 4.5 7.5 GRS 1915+105
299.7207 35.1870 3.1 9.6 110.7 0.0687 3.7 6.5 Cyg X-1
307.9276 41.0403 6.3 3.4 45.3 0.0333 1.8 9.8 Cyg X-3
326.3040 38.4360 4.7 16.8 4.4 -0.0462 -2.5 9.3 Cyg X-2
300.8347 16.0838 2.3 28.0 91.9 0.1521 5.2 ------ UNKNOWN
297.5816 45.3353 2.2 5.6 -168.4 0.1005 5.2 ------ UNKNOWN
220.7013 58.8092 3.9 51.1 -138.5 0.2782 3.0 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
92.620600 728.920580
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.5955 35.2580 470.1 37.9 134.4 0.0252 0.0 8.4 Her X-1
299.5691 35.1854 0.9 39.4 74.4 21.2837 13.2 1.4 Cyg X-1
308.1041 40.9029 1.8 35.6 61.2 6.0564 6.6 3.0 Cyg X-3
326.1701 38.1901 6.0 42.9 41.9 -1.9243 -1.9 7.9 Cyg X-2
209.2750 38.1511 4.2 45.9 -171.6 2.2450 2.7 ------ UNKNOWN
185.2443 48.6916 4.0 43.6 -142.8 2.4843 2.9 ------ UNKNOWN
168.8382 48.9530 3.0 48.0 -129.0 8.2880 3.9 ------ UNKNOWN
Plot creation:
Thu Jul 14 23:43:32 EDT 2016