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
299.5441 +35.2762 0.0080 14.1 116.8 2.2322 24.0 TRIG_00701454
------------------------------------------
Foreground time interval of the image:
0.000 64.000 (delta_t = 64.000 [sec])
Background time interval of the image:
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 64.000000
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 64.000000
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 64.000000
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 64.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.84382 ( -0.150415 0.155458 )
Norm@50keV : 1.45286E-03 ( -0.000144258 0.000142085 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.22 using 59 PHA bins.
# Reduced chi-squared = 1.162 for 57 degrees of freedom
# Null hypothesis probability = 1.888030e-01
Photon flux (15-150 keV) in 64 sec: 0.203704 ( -0.0169167 0.0169219 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.5504e-07 ( -8.4601e-08 8.6089e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.870550 ( -0.981666 0.763293 )
Epeak [keV] : 48.0905 ( -8.4365 29.5502 )
Norm@50keV : 5.28585E-03 ( -0.00334203 0.0145725 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.24 using 59 PHA bins.
# Reduced chi-squared = 1.094 for 56 degrees of freedom
# Null hypothesis probability = 2.934567e-01
Photon flux (15-150 keV) in 64 sec: 0.195173 ( -0.018155 0.018119 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.65382e-07 ( -1.01235e-07 1.08326e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.182140 ( -1.08263 2.35005 )
beta : -2.40843 ( 2.41035 0.427865 )
Epeak [keV] : 40.7044 ( -9.64544 13.4943 )
Norm@50keV : 1.48492E-02 ( -0.0160492 0.601818 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.63 using 59 PHA bins.
# Reduced chi-squared = 1.066 for 55 degrees of freedom
# Null hypothesis probability = 3.438877e-01
Photon flux (15-150 keV) in 64 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.85984e-07 ( -7.85536e-07 -9.46432e-08 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.4680 (-0.901886 1.01231)
R^2/D10^2 : 8.17281E-02 (-0.0242195 0.0334487)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 73.36 using 59 PHA bins.
# Reduced chi-squared = 1.287 for 57 degrees of freedom
# Null hypothesis probability = 7.119166e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.184e-07 1.782e-08
25- 50 3.135e-07 2.899e-08
50-150 1.865e-07 3.994e-08
15-150 6.184e-07 6.320e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 83.3716 (-20.929 34.3043)
Norm : 0.946729 (-0.110366 0.133951)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.94 using 59 PHA bins.
# Reduced chi-squared = 1.087 for 57 degrees of freedom
# Null hypothesis probability = 3.042993e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.576e-07 1.888e-08
25- 50 2.620e-07 2.198e-08
50-150 3.801e-07 1.523e-07
15-150 7.997e-07 1.459e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.35565 (-1.78096 1.49284)
R1^2/D10^2 : 0.157370 (-0.052074 0.105685)
kT2 [keV] : 31.5969 (-23.1621 -43.0252)
R2^2/D10^2 : 6.68369E-04 (-0.000271074 0.00387364)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.74 using 59 PHA bins.
# Reduced chi-squared = 1.068 for 55 degrees of freedom
# Null hypothesis probability = 3.399921e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.375e-07 3.574e-08
25- 50 2.878e-07 8.058e-08
50-150 3.557e-07 1.815e-07
15-150 7.811e-07 2.828e-07
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.84382 ( -0.150415 0.155458 )
Norm@50keV : 1.45286E-03 ( -0.000144258 0.000142085 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.22 using 59 PHA bins.
# Reduced chi-squared = 1.162 for 57 degrees of freedom
# Null hypothesis probability = 1.888030e-01
Photon flux (15-150 keV) in 64 sec: 0.203704 ( -0.0169167 0.0169219 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.5504e-07 ( -8.4601e-08 8.6089e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.870550 ( -0.981666 0.763293 )
Epeak [keV] : 48.0905 ( -8.4365 29.5502 )
Norm@50keV : 5.28585E-03 ( -0.00334203 0.0145725 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.24 using 59 PHA bins.
# Reduced chi-squared = 1.094 for 56 degrees of freedom
# Null hypothesis probability = 2.934567e-01
Photon flux (15-150 keV) in 64 sec: 0.195173 ( -0.018155 0.018119 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.65382e-07 ( -1.01235e-07 1.08326e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.182140 ( -1.08263 2.35005 )
beta : -2.40843 ( 2.41035 0.427865 )
Epeak [keV] : 40.7044 ( -9.64544 13.4943 )
Norm@50keV : 1.48492E-02 ( -0.0160492 0.603077 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.63 using 59 PHA bins.
# Reduced chi-squared = 1.066 for 55 degrees of freedom
# Null hypothesis probability = 3.438877e-01
Photon flux (15-150 keV) in 64 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.85984e-07 ( -7.85536e-07 -9.46432e-08 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.4680 (-0.901886 1.01231)
R^2/D10^2 : 8.17281E-02 (-0.0242195 0.0334487)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 73.36 using 59 PHA bins.
# Reduced chi-squared = 1.287 for 57 degrees of freedom
# Null hypothesis probability = 7.119166e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.184e-07 1.654e-08
25- 50 3.135e-07 3.203e-08
50-150 1.865e-07 3.958e-08
15-150 6.184e-07 6.931e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 83.3716 (-20.929 34.3043)
Norm : 0.946729 (-0.110366 0.133951)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.94 using 59 PHA bins.
# Reduced chi-squared = 1.087 for 57 degrees of freedom
# Null hypothesis probability = 3.042993e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.576e-07 1.840e-08
25- 50 2.620e-07 2.230e-08
50-150 3.801e-07 1.527e-07
15-150 7.997e-07 1.520e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.35565 (-1.78096 1.49284)
R1^2/D10^2 : 0.157370 (-0.052074 0.105685)
kT2 [keV] : 31.5969 (-23.1621 -43.0252)
R2^2/D10^2 : 6.68369E-04 (-0.000271074 0.00387364)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.74 using 59 PHA bins.
# Reduced chi-squared = 1.068 for 55 degrees of freedom
# Null hypothesis probability = 3.399921e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.375e-07 3.782e-08
25- 50 2.878e-07 8.010e-08
50-150 3.557e-07 1.939e-07
15-150 7.811e-07 2.811e-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: 1.84382 ( -0.150415 0.155458 )
Norm@50keV : 1.45286E-03 ( -0.000144258 0.000142085 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.22 using 59 PHA bins.
# Reduced chi-squared = 1.162 for 57 degrees of freedom
# Null hypothesis probability = 1.888030e-01
Photon flux (15-150 keV) in 64 sec: 0.203704 ( -0.0169167 0.0169219 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.5504e-07 ( -8.4601e-08 8.6089e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.870550 ( -0.981666 0.763293 )
Epeak [keV] : 48.0905 ( -8.4365 29.5502 )
Norm@50keV : 5.28585E-03 ( -0.00334203 0.0145725 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.24 using 59 PHA bins.
# Reduced chi-squared = 1.094 for 56 degrees of freedom
# Null hypothesis probability = 2.934567e-01
Photon flux (15-150 keV) in 64 sec: 0.195173 ( -0.018155 0.018119 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.65382e-07 ( -1.01235e-07 1.08326e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.182140 ( -1.08263 2.35005 )
beta : -2.40843 ( 2.41035 0.427865 )
Epeak [keV] : 40.7044 ( -9.64544 13.4943 )
Norm@50keV : 1.48492E-02 ( -0.0160492 0.601832 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.63 using 59 PHA bins.
# Reduced chi-squared = 1.066 for 55 degrees of freedom
# Null hypothesis probability = 3.438877e-01
Photon flux (15-150 keV) in 64 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.85984e-07 ( -7.85536e-07 -9.46432e-08 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 2.45e-07
S(50-100 keV) = 2.73e-07
T90 vs. Hardness ratio plot
T90 = 64 sec.
Hardness ratio (energy fluence ratio) = 1.11429
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.27735
Count Ratio (50-100 keV) / (15-25 keV) = 0.52406
Mask shadow pattern
IMX = -1.129689551429714E-01, IMY = -2.238708654499559E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
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:
-209.799400 -81.820000
-81.000000 -56.015000
-55.000000 73.200600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3005 35.2462 0.0 47.1 153.8 1.2331 1.8 9.6 Her X-1
288.7261 11.0710 11.4 38.8 95.5 -0.8992 -1.0 8.6 GRS 1915+105
299.5498 35.2670 0.3 14.1 116.7 8.6457 35.1 4.4 Cyg X-1
308.0668 41.0248 1.3 5.5 131.1 1.8869 8.7 4.8 Cyg X-3
326.0771 38.4586 7.1 9.0 -17.9 0.3506 1.6 9.3 Cyg X-2
334.6945 -7.4716 2.7 52.7 26.6 5.1451 4.3 ------ UNKNOWN
349.2939 67.7893 2.7 31.3 -104.9 1.4418 4.3 ------ UNKNOWN
17.4420 73.3571 2.6 42.0 -106.7 4.7050 4.5 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 64.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3892 35.3760 9.2 47.0 153.9 -0.3343 -1.2 3.9 Her X-1
288.8677 10.9751 133.7 38.8 95.3 0.0319 0.1 4.5 GRS 1915+105
299.5441 35.2762 0.5 14.1 116.8 2.2322 24.0 5.0 Cyg X-1
308.0648 41.0545 2.5 5.5 131.4 0.3756 4.6 6.5 Cyg X-3
326.2066 38.1393 5.7 9.3 -16.5 0.1743 2.0 11.1 Cyg X-2
323.9959 14.0732 2.4 29.1 33.5 0.5190 4.8 ------ UNKNOWN
0.0618 21.6559 2.6 42.5 -24.4 0.5812 4.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
109.500600 415.200600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4558 35.3432 56.6 36.4 168.4 0.0795 0.2 0.1 Her X-1
288.8691 11.0515 2.4 26.1 89.2 1.8479 4.9 7.6 GRS 1915+105
299.5873 35.1982 0.3 0.1 41.4 9.7380 40.3 0.3 Cyg X-1
308.0791 40.9318 1.8 8.8 -67.5 1.5703 6.4 1.9 Cyg X-3
326.1377 38.1486 5.5 21.4 -40.6 0.5693 2.1 10.5 Cyg X-2
277.0645 19.7588 2.3 25.2 122.6 1.7139 5.1 ------ UNKNOWN
319.0745 75.8223 2.5 41.5 -108.1 4.6225 4.6 ------ UNKNOWN
Plot creation:
Sun Jun 26 10:59:12 EDT 2016