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
299.1663 +35.1815 0.0958 26.0 57.7 0.2475 2.0 TRIG_00725626
------------------------------------------
Foreground time interval of the image:
20.332 71.101 (delta_t = 50.769 [sec])
Background time interval of the image:
-239.000 20.332 (delta_t = 259.332 [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
8 ms binning
From T100_start-3 s to T100_start+3 s
2 ms binning
From T100_start-1 s to T100_start+1 s
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 20.332 sec. to 136.732 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.84387 ( -0.125854 0.128599 )
Norm@50keV : 1.89447E-03 ( -0.000150531 0.000148718 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.82 using 59 PHA bins.
# Reduced chi-squared = 0.9266 for 57 degrees of freedom
# Null hypothesis probability = 6.325982e-01
Photon flux (15-150 keV) in 116.4 sec: 0.265627 ( -0.018519 0.0185338 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.02769e-06 ( -1.61156e-07 1.63122e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 20.332 sec. to 136.732 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.45743 ( -0.555179 0.456818 )
Epeak [keV] : 61.2742 ( -16.8919 -61.2748 )
Norm@50keV : 3.11737E-03 ( -0.00130641 0.00322445 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.98 using 59 PHA bins.
# Reduced chi-squared = 0.9103 for 56 degrees of freedom
# Null hypothesis probability = 6.649976e-01
Photon flux (15-150 keV) in 116.4 sec: 0.260947 ( -0.019405 0.019392 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.9456e-06 ( -1.90593e-07 1.92165e-07 ) ergs/cm2
Band function
Time interval is from 20.332 sec. to 136.732 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 0.575331 ( -1.60433 0.379816 )
beta : -2.05242 ( -0.309314 0.23698 )
Epeak [keV] : 31.5864 ( -13.4199 23.0572 )
Norm@50keV : 8.48730E-02 ( -0.0834107 111.788 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.72 using 59 PHA bins.
# Reduced chi-squared = 0.8676 for 55 degrees of freedom
# Null hypothesis probability = 7.464326e-01
Photon flux (15-150 keV) in 116.4 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.95048e-06 ( -1.94967e-06 -1.7467e-07 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.5999 (-0.877968 0.984979)
R^2/D10^2 : 9.88202E-02 (-0.0284033 0.0388125)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 92.91 using 59 PHA bins.
# Reduced chi-squared = 1.630 for 57 degrees of freedom
# Null hypothesis probability = 1.871891e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.678e-07 3.341e-08
25- 50 7.213e-07 5.768e-08
50-150 4.446e-07 8.189e-08
15-150 1.434e-06 1.216e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 89.2837 (-19.8655 30.4328)
Norm : 1.20337 (-0.122286 0.141574)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.10 using 59 PHA bins.
# Reduced chi-squared = 0.8965 for 57 degrees of freedom
# Null hypothesis probability = 6.949136e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.654e-07 4.318e-08
25- 50 6.169e-07 4.749e-08
50-150 9.348e-07 3.437e-07
15-150 1.917e-06 3.411e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.17929 (-1.05582 1.08036)
R1^2/D10^2 : 0.332739 (-0.127199 0.241371)
kT2 [keV] : 27.9182 (-7.0489 13.8644)
R2^2/D10^2 : 1.84559E-03 (-0.00133866 0.00354965)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.57 using 59 PHA bins.
# Reduced chi-squared = 0.8285 for 55 degrees of freedom
# Null hypothesis probability = 8.138808e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.563e-07 7.170e-08
25- 50 6.365e-07 1.152e-07
50-150 1.009e-06 4.873e-07
15-150 2.002e-06 5.817e-07
Peak spectrum fit
Power-law model
Time interval is from 57.008 sec. to 58.008 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.50462 ( -0.518841 0.516548 )
Norm@50keV : 4.57360E-03 ( -0.00156484 0.0015519 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.25 using 59 PHA bins.
# Reduced chi-squared = 0.8991 for 57 degrees of freedom
# Null hypothesis probability = 6.896712e-01
Photon flux (15-150 keV) in 1 sec: 0.571654 ( -0.192003 0.193222 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.33583e-08 ( -1.55118e-08 1.61177e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 57.008 sec. to 58.008 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -4.59905 ( 5.0331 5.06346 )
Epeak [keV] : 44.8978 ( -7.83378 17.2151 )
Norm@50keV : 11.8406 ( -11.4248 9533.57 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.08 using 59 PHA bins.
# Reduced chi-squared = 0.8050 for 56 degrees of freedom
# Null hypothesis probability = 8.516004e-01
Photon flux (15-150 keV) in 1 sec: 0.500086 ( -0.176439 0.189262 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.13748e-08 ( -1.06533e-08 1.33528e-08 ) ergs/cm2
Band function
Time interval is from 57.008 sec. to 58.008 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 3.95528 ( -4.14766 -3.95721 )
beta : -4.54467 ( 4.49622 2.70052 )
Epeak [keV] : 45.0114 ( -13.656 10.5348 )
Norm@50keV : 5.54617 ( -5.5784 8.25164 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.96 using 59 PHA bins.
# Reduced chi-squared = 0.8174 for 55 degrees of freedom
# Null hypothesis probability = 8.310181e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 3.379e-08 ( -3.3783e-08 -1.19186e-08 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 12.2978 (-2.80744 4.0253)
R^2/D10^2 : 0.149203 (-0.149207 0.236251)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.00 using 59 PHA bins.
# Reduced chi-squared = 0.8071 for 57 degrees of freedom
# Null hypothesis probability = 8.510799e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.781e-09 2.983e-09
25- 50 1.548e-08 9.339e-09
50-150 1.430e-08 9.850e-09
15-150 3.456e-08 2.111e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 170.905 (-117.496 -168.882)
Norm : 2.39604 (-0.802245 1.20269)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.42 using 59 PHA bins.
# Reduced chi-squared = 0.8845 for 57 degrees of freedom
# Null hypothesis probability = 7.187260e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.961e-09 3.748e-09
25- 50 1.142e-08 7.005e-09
50-150 2.472e-08 1.507e-08
15-150 4.210e-08 2.566e-08
Double BB
R1^2/D10^2 : 3.03802E-05 (-3.03537e-05 -3.03537e-05)
kT2 [keV] : 11.6155 (-2.90642 4.23211)
R2^2/D10^2 : 0.173249 (-0.116542 0.308716)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.00 using 59 PHA bins.
#Fit statistic : Chi-Squared = 45.54 using 59 PHA bins.
#Fit statistic : Chi-Squared = 45.53 using 59 PHA bins.
# Reduced chi-squared = 0.8365 for 55 degrees of freedom
# Reduced chi-squared = 0.8280 for 55 degrees of freedom
# Reduced chi-squared = 0.8277 for 55 degrees of freedom
# Null hypothesis probability = 8.009239e-01
# Null hypothesis probability = 8.145319e-01
# Null hypothesis probability = 8.150390e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
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: 1.80055 ( -0.206327 0.213973 )
Norm@50keV : 1.73187E-03 ( -0.000242513 0.000238065 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.00 using 59 PHA bins.
# Reduced chi-squared = 1.035 for 57 degrees of freedom
# Null hypothesis probability = 4.021188e-01
Photon flux (15-150 keV) in 50.77 sec: 0.238698 ( -0.0286439 0.0286527 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.09446e-07 ( -1.13995e-07 1.1645e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.924591 ( -1.40781 0.944952 )
Epeak [keV] : 50.0368 ( -12.4407 -50.0192 )
Norm@50keV : 5.67340E-03 ( -0.00568269 0.0352114 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.63 using 59 PHA bins.
# Reduced chi-squared = 1.011 for 56 degrees of freedom
# Null hypothesis probability = 4.512480e-01
Photon flux (15-150 keV) in 50.77 sec: 0.231446 ( -0.029885 0.029759 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.29885e-07 ( -1.37455e-07 1.45436e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 1.66018 ( -2.05668 -0.798198 )
beta : -2.29614 ( -0.834066 0.447936 )
Epeak [keV] : 33.4192 ( -11.3596 15.7588 )
Norm@50keV : 0.342474 ( -0.330822 53.1344 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.00 using 59 PHA bins.
# Reduced chi-squared = 0.9636 for 55 degrees of freedom
# Null hypothesis probability = 5.514661e-01
Photon flux (15-150 keV) in 50.77 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.49995e-07 ( -7.49639e-07 -1.21279e-07 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 5.80e-07
S(50-100 keV) = 6.47e-07
T90 vs. Hardness ratio plot
T90 = 29.6559999585152 sec.
Hardness ratio (energy fluence ratio) = 1.11552
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.17076
Count Ratio (50-100 keV) / (15-25 keV) = 0.625882
Mask shadow pattern
IMX = 2.603074370303997E-01, IMY = -4.124450594608739E-01
TIME vs. PHA plot around the trigger time
TIME vs. DetID plot around the trigger time
100 us light curve (15-350 keV)
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:
-239.000000 20.332000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4533 35.2361 1.5 39.5 -8.4 3.0109 7.7 6.4 Her X-1
268.2072 -1.4106 9.1 23.9 -81.9 0.4616 1.3 10.0 SW J1753.5-0127
270.2047 -25.0565 3.7 40.3 -115.5 2.4896 3.1 4.5 GX 5-1
270.3291 -25.7936 8.6 40.9 -116.2 1.1860 1.3 3.4 GRS 1758-258
274.0859 -14.0129 5.5 28.9 -111.4 0.9421 2.1 4.9 GX 17+2
275.8325 -30.3716 4.4 43.2 -125.5 2.2127 2.6 4.8 H1820-303
284.7989 -24.8918 0.0 36.1 -135.8 -0.6292 -1.4 13.0 HT1900.1-2455
288.7423 10.8673 1.1 0.1 -131.6 2.6961 10.1 5.7 GRS 1915+105
299.5314 35.1410 0.3 26.1 58.4 12.5801 35.5 4.6 Cyg X-1
308.0328 40.9442 2.5 34.4 64.2 2.6389 4.7 3.5 Cyg X-3
314.4043 -13.9601 3.3 35.6 171.9 1.3444 3.5 ------ UNKNOWN
251.0922 40.8295 2.5 44.6 -3.1 2.3356 4.6 ------ UNKNOWN
311.9629 -38.7546 3.1 54.2 -164.2 3.4118 3.7 ------ UNKNOWN
274.8763 -20.3518 3.3 34.2 -118.3 1.7579 3.5 ------ UNKNOWN
237.9570 17.7925 2.5 49.5 -37.8 4.6040 4.7 ------ UNKNOWN
262.3815 -19.2311 3.8 39.8 -101.0 3.4625 3.0 ------ UNKNOWN
285.6476 -40.4957 2.6 51.5 -138.9 7.3882 4.5 ------ UNKNOWN
236.9750 12.5087 4.2 50.6 -44.7 4.1553 2.8 ------ UNKNOWN
271.6287 -31.3112 2.9 45.4 -121.2 5.3471 4.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
20.332000 71.100600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4200 35.2158 6.1 39.5 -8.4 -0.2400 -1.9 7.8 Her X-1
268.5689 -1.4621 0.0 23.6 -82.5 0.0981 0.9 12.1 SW J1753.5-0127
270.2702 -25.0162 5.0 40.2 -115.5 0.6027 2.3 3.9 GX 5-1
270.5371 -25.7659 0.0 40.8 -116.4 -0.2607 -0.9 12.8 GRS 1758-258
273.9201 -14.1669 6.9 29.1 -111.3 -0.2238 -1.7 9.3 GX 17+2
275.9405 -30.5001 5.7 43.3 -125.7 0.5342 2.0 8.0 H1820-303
284.9678 -25.0524 8.1 36.2 -136.1 -0.1990 -1.4 8.7 HT1900.1-2455
288.7384 11.0039 36.1 0.0 9.6 0.0271 0.3 5.0 GRS 1915+105
299.5673 35.2058 6.0 26.2 58.4 -0.2362 -1.9 1.2 Cyg X-1
307.9047 40.9241 5.4 34.4 64.1 -0.3784 -2.1 9.5 Cyg X-3
326.5048 1.2474 2.6 38.7 140.0 0.8178 4.4 ------ UNKNOWN
282.2483 50.5608 2.2 40.0 31.6 0.8794 5.3 ------ UNKNOWN
251.9118 53.1048 2.2 51.4 10.6 1.5219 5.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
122.700630 963.070300
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4904 35.3608 1.2 36.4 -30.4 9.6030 9.7 1.9 Her X-1
288.7798 10.9500 1.6 26.0 -109.8 8.1164 7.2 1.1 GRS 1915+105
299.5888 35.2032 0.2 0.2 103.6 38.5609 57.9 0.1 Cyg X-1
308.1150 40.9488 1.1 9.0 92.8 7.6522 10.8 0.3 Cyg X-3
326.1162 38.4562 6.2 21.6 119.0 -1.6794 -1.9 8.5 Cyg X-2
256.5509 42.5082 2.6 33.8 -18.4 3.9412 4.5 ------ UNKNOWN
227.6884 43.9622 3.1 54.3 -11.5 7.9865 3.7 ------ UNKNOWN
326.8109 -12.2782 2.5 54.0 -167.9 12.2188 4.5 ------ UNKNOWN
305.1469 -3.2841 2.2 38.8 -143.3 5.8279 5.2 ------ UNKNOWN
Plot creation:
Wed Dec 7 06:50:28 EST 2016