Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte
Image
Pre-slew 15.0-350.0 keV image (Event data)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
266.5066 -29.0631 0.0407 13.4311 40.8327 1.4318084 4.748 TRIG_00689353
Foreground time interval of the image:
0.000 344.000 (delta_t = 344.000 [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
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 0.000 sec. to 344.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.00050 ( -0.466882 0.523956 )
Norm@50keV : 2.02051E-04 ( -6.66948e-05 6.31712e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.33 using 59 PHA bins.
# Reduced chi-squared = 0.9531 for 57 degrees of freedom
# Null hypothesis probability = 5.759566e-01
Photon flux (15-150 keV) in 344 sec: 3.03146E-02 ( -0.00740847 0.00741043 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.40986e-07 ( -1.88594e-07 2.0051e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 344.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.07246 ( -5.35182 0.840782 )
Epeak [keV] : 36.6634 ( )
Norm@50keV : 1.82809E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.31 using 59 PHA bins.
# Reduced chi-squared = 0.9699 for 56 degrees of freedom
# Null hypothesis probability = 5.388933e-01
Photon flux (15-150 keV) in 344 sec: 3.03126E-02 ( -0.0074082 0.0073962 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.39186e-07 ( -2.63212e-07 1.9983e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 344.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.00301 ( 1.20412 1.20412 )
beta : -2.33481 ( 2.28712 0.722281 )
Epeak [keV] : 35.1933 ( -35.6449 73.4232 )
Norm@50keV : 8.62002E-04 ( -0.000562403 107.588 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.95 using 59 PHA bins.
# Reduced chi-squared = 0.9809 for 55 degrees of freedom
# Null hypothesis probability = 5.147752e-01
Photon flux (15-150 keV) in 344 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] : 8.99229 (-2.0236 2.73104)
R^2/D10^2 : 2.13170E-02 (-0.0138549 0.036705)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.92 using 59 PHA bins.
# Reduced chi-squared = 0.9811 for 57 degrees of freedom
# Null hypothesis probability = 5.154828e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.154e-07 6.926e-08
25- 50 2.449e-07 1.308e-07
50-150 9.320e-08 6.422e-08
15-150 4.535e-07 2.127e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 60.2823 (-31.3541 -60.2784)
Norm : 0.157940 (-0.0561095 0.0969868)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.51 using 59 PHA bins.
# Reduced chi-squared = 0.9562 for 57 degrees of freedom
# Null hypothesis probability = 5.692083e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.367e-07 4.947e-08
25- 50 2.083e-07 9.859e-08
50-150 2.379e-07 1.738e-07
15-150 5.828e-07 3.160e-07
Double BB
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.82 using 59 PHA bins.
#Fit statistic : Chi-Squared = 52.08 using 59 PHA bins.
#Fit statistic : Chi-Squared = 52.06 using 59 PHA bins.
#Fit statistic : Chi-Squared = 52.05 using 59 PHA bins.
# Reduced chi-squared = 0.9967 for 55 degrees of freedom
# Reduced chi-squared = 0.9470 for 55 degrees of freedom
# Reduced chi-squared = 0.9465 for 55 degrees of freedom
# Reduced chi-squared = 0.9463 for 55 degrees of freedom
# Null hypothesis probability = 4.814301e-01
# Null hypothesis probability = 5.868050e-01
# Null hypothesis probability = 5.877353e-01
# Null hypothesis probability = 5.881564e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.327e-07 6.414e-08
25- 50 2.274e-07 1.361e-07
50-150 1.222e-07 8.227e-08
15-150 4.824e-07 2.690e-07
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 344.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.00050 ( -0.466882 0.523956 )
Norm@50keV : 2.02051E-04 ( -6.66948e-05 6.31712e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.33 using 59 PHA bins.
# Reduced chi-squared = 0.9531 for 57 degrees of freedom
# Null hypothesis probability = 5.759566e-01
Photon flux (15-150 keV) in 344 sec: 3.03146E-02 ( -0.00740847 0.00741043 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.40986e-07 ( -1.88594e-07 2.0051e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 344.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.07246 ( -5.35182 0.840782 )
Epeak [keV] : 36.6634 ( )
Norm@50keV : 1.82809E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.31 using 59 PHA bins.
# Reduced chi-squared = 0.9699 for 56 degrees of freedom
# Null hypothesis probability = 5.388933e-01
Photon flux (15-150 keV) in 344 sec: 3.03126E-02 ( -0.0074082 0.0073962 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.39186e-07 ( -2.63212e-07 1.9983e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 344.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.00301 ( 1.20412 1.20412 )
beta : -2.33481 ( 2.28712 0.722281 )
Epeak [keV] : 35.1933 ( -35.6449 73.4232 )
Norm@50keV : 8.62002E-04 ( -0.000562403 102.995 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.95 using 59 PHA bins.
# Reduced chi-squared = 0.9809 for 55 degrees of freedom
# Null hypothesis probability = 5.147752e-01
Photon flux (15-150 keV) in 344 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] : 8.99229 (-2.0236 2.73104)
R^2/D10^2 : 2.13170E-02 (-0.0138549 0.036705)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.92 using 59 PHA bins.
# Reduced chi-squared = 0.9811 for 57 degrees of freedom
# Null hypothesis probability = 5.154828e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.154e-07 5.334e-08
25- 50 2.449e-07 1.432e-07
50-150 9.320e-08 5.987e-08
15-150 4.535e-07 2.177e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 60.2823 (-31.3541 -60.2784)
Norm : 0.157940 (-0.0561095 0.0969868)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.51 using 59 PHA bins.
# Reduced chi-squared = 0.9562 for 57 degrees of freedom
# Null hypothesis probability = 5.692083e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.367e-07 5.399e-08
25- 50 2.083e-07 9.954e-08
50-150 2.379e-07 1.601e-07
15-150 5.828e-07 3.072e-07
Double BB
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.82 using 59 PHA bins.
#Fit statistic : Chi-Squared = 52.08 using 59 PHA bins.
#Fit statistic : Chi-Squared = 52.06 using 59 PHA bins.
#Fit statistic : Chi-Squared = 52.05 using 59 PHA bins.
# Reduced chi-squared = 0.9967 for 55 degrees of freedom
# Reduced chi-squared = 0.9470 for 55 degrees of freedom
# Reduced chi-squared = 0.9465 for 55 degrees of freedom
# Reduced chi-squared = 0.9463 for 55 degrees of freedom
# Null hypothesis probability = 4.814301e-01
# Null hypothesis probability = 5.868050e-01
# Null hypothesis probability = 5.877353e-01
# Null hypothesis probability = 5.881564e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.327e-07 6.741e-08
25- 50 2.274e-07 1.354e-07
50-150 1.222e-07 8.421e-08
15-150 4.824e-07 2.618e-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: 2.00050 ( -0.466882 0.523956 )
Norm@50keV : 2.02051E-04 ( -6.66948e-05 6.31712e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.33 using 59 PHA bins.
# Reduced chi-squared = 0.9531 for 57 degrees of freedom
# Null hypothesis probability = 5.759566e-01
Photon flux (15-150 keV) in 344 sec: 3.03146E-02 ( -0.00740847 0.00741043 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.40986e-07 ( -1.88594e-07 2.0051e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.07246 ( -5.35182 0.840782 )
Epeak [keV] : 36.6634 ( )
Norm@50keV : 1.82809E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.31 using 59 PHA bins.
# Reduced chi-squared = 0.9699 for 56 degrees of freedom
# Null hypothesis probability = 5.388933e-01
Photon flux (15-150 keV) in 344 sec: 3.03126E-02 ( -0.0074082 0.0073962 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.39186e-07 ( -2.63212e-07 1.9983e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.00301 ( 1.20412 1.20412 )
beta : -2.33481 ( 2.28712 0.722281 )
Epeak [keV] : 35.1933 ( -35.6449 73.4232 )
Norm@50keV : 8.62002E-04 ( -0.000562403 101.484 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.95 using 59 PHA bins.
# Reduced chi-squared = 0.9809 for 55 degrees of freedom
# Null hypothesis probability = 5.147752e-01
Photon flux (15-150 keV) in 344 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) = 1.93e-07
S(50-100 keV) = 1.93e-07
T90 vs. Hardness ratio plot
T90 = 344 sec.
Hardness ratio (energy fluence ratio) = 1
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.24063
Count Ratio (50-100 keV) / (15-25 keV) = 0.403611
Mask shadow pattern
IMX = 1.806868630152524E-01, IMY = -1.561450047427321E-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:
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 344.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9762 -15.6466 0.7 32.1 83.8 11.2460 16.1 0.4 Sco X-1
256.0909 -38.0384 1260.5 25.7 33.5 0.0034 0.0 12.7 4U 1700-377
256.4154 -36.4189 1.8 24.6 36.4 2.3099 6.3 1.0 GX 349+2
263.0422 -24.7079 4.2 14.6 62.4 0.8289 2.8 2.9 GX 1+4
264.6647 -44.3755 48.2 26.0 12.7 0.0754 0.2 5.6 4U 1735-44
268.5093 -1.4788 12.9 21.8 142.3 -0.2993 -0.9 8.6 SW J1753.5-0127
270.2786 -24.9714 6.2 8.5 50.6 0.5313 1.9 6.5 GX 5-1
270.2868 -25.7538 2.8 8.8 46.0 1.1642 4.1 1.1 GRS 1758-258
274.0159 -14.0276 2.0 8.2 138.3 1.7167 5.6 0.8 GX 17+2
275.8914 -30.2083 3.5 9.4 3.3 1.0460 3.3 9.7 H1820-303
285.1780 -25.0872 0.0 7.4 -65.8 0.9037 3.1 12.6 HT1900.1-2455
288.7931 10.9204 2.7 33.5 -171.5 1.5675 4.3 1.5 GRS 1915+105
262.9472 -33.6671 5.2 18.6 33.9 0.7026 2.2 10.3 GX 354-0
253.4773 -27.8481 3.0 23.7 58.2 1.5371 3.8 ------ UNKNOWN
310.2839 27.8587 4.2 57.8 -156.6 5.9830 3.0 ------ UNKNOWN
310.2632 28.0299 5.7 57.9 -156.8 5.1223 2.7 ------ UNKNOWN
316.6112 19.7755 4.6 55.3 -145.1 5.7224 2.5 ------ UNKNOWN
319.2464 5.4635 3.3 48.0 -129.0 5.0589 3.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
410.500600 773.800600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9705 -15.6427 0.5 23.8 90.6 11.1794 21.9 0.5 Sco X-1
256.1228 -37.8510 7.7 12.3 12.6 -0.5346 -1.5 6.5 4U 1700-377
256.4655 -36.4421 1.7 11.2 16.9 2.3208 6.6 1.8 GX 349+2
263.1113 -24.8834 5.1 5.1 115.0 0.7998 2.3 10.0 GX 1+4
264.7388 -44.4486 17.4 15.5 -24.4 0.2139 0.7 0.2 4U 1735-44
268.1955 -1.4752 4.7 27.6 155.0 1.1101 2.5 10.4 SW J1753.5-0127
270.0620 -25.1444 0.0 5.1 -167.9 0.6469 1.9 12.7 GX 5-1
270.3647 -25.8659 5.1 4.7 -159.7 0.8082 2.3 8.1 GRS 1758-258
274.0449 -14.0590 3.0 16.5 178.1 1.3568 3.9 2.7 GX 17+2
275.9522 -30.4669 4.1 8.4 -106.5 0.9944 2.8 6.2 H1820-303
285.0511 -24.7689 6.8 17.1 -128.8 0.6441 1.7 9.1 HT1900.1-2455
288.8839 10.9694 3.3 45.5 -177.1 2.2559 3.5 5.2 GRS 1915+105
262.7424 -33.8875 0.0 5.8 2.9 0.9202 2.8 12.7 GX 354-0
313.9315 2.4659 6.1 55.3 -145.2 4.2797 1.9 ------ UNKNOWN
314.8303 -34.4044 6.0 41.2 -98.5 3.4960 2.0 ------ UNKNOWN
314.8482 -8.5529 4.7 49.8 -133.1 4.3086 2.5 ------ UNKNOWN
Plot creation:
Tue Jun 7 10:01:29 EDT 2016