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
234.4890 +63.8090 0.0266 46.6 -169.2 0.1079 7.2 TRIG_00704310
------------------------------------------
Foreground time interval of the image:
0.024 0.400 (delta_t = 0.376 [sec])
Background time interval of the image:
-96.995 0.024 (delta_t = 97.019 [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 0.256000
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 0.256000
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 0.256000
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 0.024 sec. to 0.400 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.37209 ( -0.37217 0.366912 )
Norm@50keV : 1.89816E-02 ( -0.00409253 0.00409251 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.71 using 59 PHA bins.
# Reduced chi-squared = 1.083 for 57 degrees of freedom
# Null hypothesis probability = 3.115932e-01
Photon flux (15-150 keV) in 0.376 sec: 2.29740 ( -0.523755 0.52729 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.93686e-08 ( -1.58546e-08 1.59568e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.024 sec. to 0.400 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.02153 ( -1.80477 1.54016 )
Epeak [keV] : 154.793 ( -154.791 -154.791 )
Norm@50keV : 2.76720E-02 ( -0.0125055 0.148935 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.52 using 59 PHA bins.
# Reduced chi-squared = 1.099 for 56 degrees of freedom
# Null hypothesis probability = 2.849329e-01
Photon flux (15-150 keV) in 0.376 sec: 2.26698 ( -0.54064 0.54076 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.85587e-08 ( -1.66478e-08 1.6347e-08 ) ergs/cm2
Band function
Time interval is from 0.024 sec. to 0.400 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.01981 ( 0.802872 5.75092 )
beta : -1.66928 ( 1.74772 11.7381 )
Epeak [keV] : 154.237 ( -141.366 -141.366 )
Norm@50keV : 2.77226E-02 ( -0.012002 0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.51 using 59 PHA bins.
# Reduced chi-squared = 1.118 for 55 degrees of freedom
# Null hypothesis probability = 2.542690e-01
Photon flux (15-150 keV) in 0.376 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] : 18.0626 (-4.60142 6.49323)
R^2/D10^2 : 0.142738 (-0.0926615 0.25262)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.90 using 59 PHA bins.
# Reduced chi-squared = 1.156 for 57 degrees of freedom
# Null hypothesis probability = 1.962078e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.502e-09 1.564e-09
25- 50 1.624e-08 7.402e-09
50-150 3.849e-08 1.858e-08
15-150 5.823e-08 2.132e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 (-91.1555 -199.363)
Norm : 9.65182 (-2.09426 2.09409)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.39 using 59 PHA bins.
# Reduced chi-squared = 1.095 for 57 degrees of freedom
# Null hypothesis probability = 2.904619e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.037e-09 5.384e-09
25- 50 1.738e-08 1.027e-08
50-150 3.813e-08 2.228e-08
15-150 6.454e-08 3.769e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.55147 (-6.09909 9.62166)
R1^2/D10^2 : 1.54739 (-1.37352 5154.51)
kT2 [keV] : 27.4519 (-10.8762 -27.524)
R2^2/D10^2 : 2.81149E-02 (-0.0277092 0.170979)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.83 using 59 PHA bins.
# Reduced chi-squared = 1.124 for 55 degrees of freedom
# Null hypothesis probability = 2.453249e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.042e-09 4.399e-09
25- 50 1.685e-08 9.406e-09
50-150 4.471e-08 2.553e-08
15-150 6.860e-08 3.570e-08
Peak spectrum fit
Power-law model
Time interval is from -0.286 sec. to 0.714 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.26041 ( -0.47952 0.455794 )
Norm@50keV : 9.06622E-03 ( -0.00238577 0.00237955 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.38 using 59 PHA bins.
# Reduced chi-squared = 1.165 for 57 degrees of freedom
# Null hypothesis probability = 1.850955e-01
Photon flux (15-150 keV) in 1 sec: 1.07413 ( -0.299572 0.302708 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.04881e-08 ( -2.48855e-08 2.50622e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.286 sec. to 0.714 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.999157 ( -2.19073 -1.03509 )
Epeak [keV] : 215.068 ( -245.04 -245.04 )
Norm@50keV : 1.18687E-02 ( -0.00465808 0.0793478 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.33 using 59 PHA bins.
# Reduced chi-squared = 1.184 for 56 degrees of freedom
# Null hypothesis probability = 1.625958e-01
Photon flux (15-150 keV) in 1 sec: 1.06383 ( -0.309592 0.15499 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.98654e-08 ( -2.56978e-08 2.54706e-08 ) ergs/cm2
Band function
Time interval is from -0.286 sec. to 0.714 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.68861 ( -4.68861 -4.68861 )
beta : -1.28362 ( -0.502408 0.4927 )
Epeak [keV] : 22.6479 ( -22.6479 191.308 )
Norm@50keV : 799.502 ( -208.684 5.09581e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.29 using 59 PHA bins.
# Reduced chi-squared = 1.205 for 55 degrees of freedom
# Null hypothesis probability = 1.415827e-01
Photon flux (15-150 keV) in 1 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] : 20.8109 (-6.26451 9.80808)
R^2/D10^2 : 4.26928E-02 (-0.0306221 0.0994541)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.51 using 59 PHA bins.
# Reduced chi-squared = 1.219 for 57 degrees of freedom
# Null hypothesis probability = 1.237360e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.507e-09 2.053e-09
25- 50 1.792e-08 1.074e-08
50-150 5.781e-08 3.721e-08
15-150 7.924e-08 4.782e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.363 (-72.8649 -199.363)
Norm : 4.55693 (-1.21077 1.21077)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.68 using 59 PHA bins.
# Reduced chi-squared = 1.187 for 57 degrees of freedom
# Null hypothesis probability = 1.573846e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.135e-08 6.895e-09
25- 50 2.183e-08 1.318e-08
50-150 4.787e-08 2.899e-08
15-150 8.105e-08 4.684e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.15647 (-5.37587 10.4339)
R1^2/D10^2 : 0.879909 (-0.827477 822.473)
kT2 [keV] : 30.2468 (-25.9575 -30.2644)
R2^2/D10^2 : 1.06338E-02 (-0.00992227 0.0537124)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 65.93 using 59 PHA bins.
# Reduced chi-squared = 1.199 for 55 degrees of freedom
# Null hypothesis probability = 1.485331e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.918e-09 6.130e-09
25- 50 1.995e-08 1.110e-08
50-150 6.227e-08 3.658e-08
15-150 9.114e-08 4.888e-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: 1.37209 ( -0.37217 0.366912 )
Norm@50keV : 1.89816E-02 ( -0.00409253 0.00409251 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.71 using 59 PHA bins.
# Reduced chi-squared = 1.083 for 57 degrees of freedom
# Null hypothesis probability = 3.115932e-01
Photon flux (15-150 keV) in 0.376 sec: 2.29740 ( -0.523755 0.52729 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.93686e-08 ( -1.58546e-08 1.59568e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.02153 ( -1.80477 1.54016 )
Epeak [keV] : 154.793 ( -154.791 -154.791 )
Norm@50keV : 2.76720E-02 ( -0.0125055 0.148935 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.52 using 59 PHA bins.
# Reduced chi-squared = 1.099 for 56 degrees of freedom
# Null hypothesis probability = 2.849329e-01
Photon flux (15-150 keV) in 0.376 sec: 2.26698 ( -0.54064 0.54076 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.85587e-08 ( -1.66478e-08 1.6347e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.01981 ( 0.802872 5.75092 )
beta : -1.66928 ( 1.74772 11.7381 )
Epeak [keV] : 154.237 ( -141.366 -141.366 )
Norm@50keV : 2.77226E-02 ( -0.012002 0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.51 using 59 PHA bins.
# Reduced chi-squared = 1.118 for 55 degrees of freedom
# Null hypothesis probability = 2.542690e-01
Photon flux (15-150 keV) in 0.376 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) = 1.61e-08
S(50-100 keV) = 2.48e-08
T90 vs. Hardness ratio plot
T90 = 0.347999930381775 sec.
Hardness ratio (energy fluence ratio) = 1.54037
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.79529
Count Ratio (50-100 keV) / (15-25 keV) = 1.78524
Mask shadow pattern
IMX = 0, IMY = 0
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
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:
-96.995400 0.024000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
299.6265 35.1754 1.1 38.0 117.3 3.4629 10.5 2.4 Cyg X-1
308.1707 40.9949 4.3 29.2 114.3 0.4930 2.7 3.7 Cyg X-3
326.1728 38.4935 4.4 23.8 84.9 0.4245 2.7 10.3 Cyg X-2
7.4388 6.6819 2.1 54.9 18.1 3.3608 5.5 599.2 UNKNOWN
27.4864 13.6642 2.2 54.9 -7.5 2.0212 5.2 ------ UNKNOWN
211.8390 72.9651 2.0 44.4 -152.3 1.2312 5.7 ------ UNKNOWN
38.9395 24.4297 2.5 50.7 -26.0 1.3692 4.7 ------ UNKNOWN
51.4235 30.6124 4.5 52.0 -42.1 1.5743 2.6 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.024000 0.400000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
299.6579 35.1286 6.2 38.0 117.2 -0.0370 -1.9 5.5 Cyg X-1
307.8994 40.8504 194.5 29.5 114.4 0.0007 0.1 11.4 Cyg X-3
325.9520 38.2989 4.1 24.0 85.1 0.0265 2.8 10.4 Cyg X-2
7.1255 23.9389 2.6 38.2 12.0 0.0450 4.5 ------ UNKNOWN
234.4891 63.8090 1.6 46.6 -169.2 0.1078 7.2 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
547.304610 809.004590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
83.6300 22.0122 0.3 19.8 -75.8 10.6838 37.7 0.2 Crab
96.1441 8.2456 2.4 36.0 -56.7 1.8006 4.8 ------ UNKNOWN
104.9433 69.5805 3.1 52.3 -149.1 3.1927 3.6 ------ UNKNOWN
101.4684 -16.4179 2.4 55.5 -34.0 6.1276 4.8 ------ UNKNOWN
104.2033 -1.5567 2.7 48.0 -50.7 4.6640 4.3 ------ UNKNOWN
Plot creation:
Tue Jan 17 10:17:51 EST 2017