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
260.0713 -24.8549 0.0137 16.8 -62.0 1.5983 14.1 TRIG_00741569
------------------------------------------
Foreground time interval of the image:
0.000 3.070 (delta_t = 3.070 [sec])
4.000 64.000 (delta_t = 60.000 [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
Multiple GTIs in the spectrum
tstart tstop
0.000000 3.070200
4.000000 64.000000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.73023 ( -0.168936 0.172317 )
Norm@50keV : 1.54294E-03 ( -0.000167334 0.000165659 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.72 using 59 PHA bins.
# Reduced chi-squared = 0.9600 for 57 degrees of freedom
# Null hypothesis probability = 5.611258e-01
Photon flux (15-150 keV) in 63.07 sec: 0.207131 ( -0.0208618 0.0208913 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.9905e-07 ( -1.00614e-07 1.01999e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 3.070200
4.000000 64.000000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.651555 ( -0.886626 0.736152 )
Epeak [keV] : 55.5379 ( -10.3042 28.5481 )
Norm@50keV : 6.04611E-03 ( -0.00361882 0.01251 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.98 using 59 PHA bins.
# Reduced chi-squared = 0.8568 for 56 degrees of freedom
# Null hypothesis probability = 7.684319e-01
Photon flux (15-150 keV) in 63.07 sec: 0.198141 ( -0.021586 0.021656 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.13862e-07 ( -1.08777e-07 1.14295e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 3.070200
4.000000 64.000000
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.54334 ( -5.43322 -4.54334 )
beta : -2.06375 ( -0.288151 0.249528 )
Epeak [keV] : 29.2654 ( -4.03327 4.0603 )
Norm@50keV : 38.5116 ( -3.75277 250.132 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.53 using 59 PHA bins.
# Reduced chi-squared = 0.8278 for 55 degrees of freedom
# Null hypothesis probability = 8.149774e-01
Photon flux (15-150 keV) in 63.07 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 8.13799e-07 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 11.9891 (-1.3728 1.581)
R^2/D10^2 : 5.10046E-02 (-0.0188599 0.0293882)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.96 using 59 PHA bins.
# Reduced chi-squared = 1.070 for 57 degrees of freedom
# Null hypothesis probability = 3.354094e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.779e-08 1.829e-08
25- 50 3.074e-07 4.043e-08
50-150 2.655e-07 6.619e-08
15-150 6.707e-07 9.338e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 107.722 (-32.6795 62.8197)
Norm : 0.908496 (-0.115508 0.139176)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.90 using 59 PHA bins.
# Reduced chi-squared = 0.8754 for 57 degrees of freedom
# Null hypothesis probability = 7.362301e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.497e-07 2.059e-08
25- 50 2.626e-07 3.078e-08
50-150 4.434e-07 1.875e-07
15-150 8.557e-07 2.040e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.99644 (-1.70287 2.09714)
R1^2/D10^2 : 0.231158 (-0.130687 0.292004)
kT2 [keV] : 20.6840 (-4.94242 11.0104)
R2^2/D10^2 : 4.58564E-03 (-0.00396532 0.0106275)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.21 using 59 PHA bins.
# Reduced chi-squared = 0.8220 for 55 degrees of freedom
# Null hypothesis probability = 8.240646e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.381e-07 7.789e-08
25- 50 2.766e-07 1.439e-07
50-150 4.074e-07 2.323e-07
15-150 8.221e-07 4.229e-07
Peak spectrum fit
Power-law model
Time interval is from 4.000 sec. to 64.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.73023 ( -0.168936 0.172317 )
Norm@50keV : 1.54294E-03 ( -0.000167334 0.000165659 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.72 using 59 PHA bins.
# Reduced chi-squared = 0.9600 for 57 degrees of freedom
# Null hypothesis probability = 5.611258e-01
Photon flux (15-150 keV) in 63.07 sec: 0.207131 ( -0.0208618 0.0208913 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.9905e-07 ( -1.00614e-07 1.01999e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 4.000 sec. to 64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.651555 ( -0.886626 0.736152 )
Epeak [keV] : 55.5379 ( -10.3042 28.5481 )
Norm@50keV : 6.04611E-03 ( -0.00361882 0.01251 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.98 using 59 PHA bins.
# Reduced chi-squared = 0.8568 for 56 degrees of freedom
# Null hypothesis probability = 7.684319e-01
Photon flux (15-150 keV) in 63.07 sec: 0.198141 ( -0.021586 0.021656 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.13862e-07 ( -1.08777e-07 1.14295e-07 ) ergs/cm2
Band function
Time interval is from 4.000 sec. to 64.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.54334 ( -5.43322 -4.54334 )
beta : -2.06375 ( -0.288151 0.249528 )
Epeak [keV] : 29.2654 ( -4.03327 4.0603 )
Norm@50keV : 38.5116 ( -3.75277 250.132 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.53 using 59 PHA bins.
# Reduced chi-squared = 0.8278 for 55 degrees of freedom
# Null hypothesis probability = 8.149774e-01
Photon flux (15-150 keV) in 63.07 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 8.13799e-07 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 11.9891 (-1.3728 1.581)
R^2/D10^2 : 5.10046E-02 (-0.0188599 0.0293882)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 60.96 using 59 PHA bins.
# Reduced chi-squared = 1.070 for 57 degrees of freedom
# Null hypothesis probability = 3.354094e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.779e-08 1.738e-08
25- 50 3.074e-07 4.387e-08
50-150 2.655e-07 6.039e-08
15-150 6.707e-07 8.432e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 107.722 (-32.6795 62.8197)
Norm : 0.908496 (-0.115508 0.139176)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.90 using 59 PHA bins.
# Reduced chi-squared = 0.8754 for 57 degrees of freedom
# Null hypothesis probability = 7.362301e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.497e-07 2.050e-08
25- 50 2.626e-07 3.176e-08
50-150 4.434e-07 1.860e-07
15-150 8.557e-07 2.076e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.99644 (-1.70287 2.09714)
R1^2/D10^2 : 0.231158 (-0.130687 0.292004)
kT2 [keV] : 20.6840 (-4.94242 11.0104)
R2^2/D10^2 : 4.58564E-03 (-0.00396532 0.0106275)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.21 using 59 PHA bins.
# Reduced chi-squared = 0.8220 for 55 degrees of freedom
# Null hypothesis probability = 8.240646e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.381e-07 7.625e-08
25- 50 2.766e-07 1.464e-07
50-150 4.074e-07 2.297e-07
15-150 8.221e-07 4.251e-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: 1.73023 ( -0.168936 0.172317 )
Norm@50keV : 1.54294E-03 ( -0.000167334 0.000165659 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.72 using 59 PHA bins.
# Reduced chi-squared = 0.9600 for 57 degrees of freedom
# Null hypothesis probability = 5.611258e-01
Photon flux (15-150 keV) in 63.07 sec: 0.207131 ( -0.0208618 0.0208913 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.9905e-07 ( -1.00614e-07 1.01999e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.651555 ( -0.886626 0.736152 )
Epeak [keV] : 55.5379 ( -10.3042 28.5481 )
Norm@50keV : 6.04611E-03 ( -0.00361882 0.01251 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.98 using 59 PHA bins.
# Reduced chi-squared = 0.8568 for 56 degrees of freedom
# Null hypothesis probability = 7.684319e-01
Photon flux (15-150 keV) in 63.07 sec: 0.198141 ( -0.021586 0.021656 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.13862e-07 ( -1.08777e-07 1.14295e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.54334 ( -5.43322 -4.54334 )
beta : -2.06375 ( -0.288151 0.249528 )
Epeak [keV] : 29.2654 ( -4.03327 4.0603 )
Norm@50keV : 38.5116 ( -3.75277 250.132 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.53 using 59 PHA bins.
# Reduced chi-squared = 0.8278 for 55 degrees of freedom
# Null hypothesis probability = 8.149774e-01
Photon flux (15-150 keV) in 63.07 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 8.13799e-07 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 2.46e-07
S(50-100 keV) = 2.97e-07
T90 vs. Hardness ratio plot
T90 = 64 sec.
Hardness ratio (energy fluence ratio) = 1.20732
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.38839
Count Ratio (50-100 keV) / (15-25 keV) = 0.821645
Mask shadow pattern
IMX = 1.414396153895299E-01, IMY = 2.662378671858610E-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:
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 3.070200
4.000000 64.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.1396 -15.5111 0.5 0.1 79.3 2.3330 22.8 12.1 Sco X-1
254.4997 35.2366 10.0 51.5 -178.5 0.3908 1.2 6.7 Her X-1
255.9893 -37.9911 4.9 24.4 -29.1 -0.2538 -2.3 8.8 4U 1700-377
256.5509 -36.5715 6.5 23.4 -31.7 -0.1940 -1.8 10.5 GX 349+2
263.1816 -24.6048 0.0 19.2 -67.0 0.5347 4.5 12.6 GX 1+4
264.5609 -44.3785 4.5 33.2 -33.9 0.3202 2.5 8.9 4U 1735-44
268.2201 -1.5736 0.0 26.6 -127.6 0.1677 1.4 11.5 SW J1753.5-0127
270.1170 -25.2226 0.0 25.2 -71.6 -0.0045 -0.0 12.5 GX 5-1
270.1403 -25.6125 0.0 25.4 -70.7 -0.2867 -2.3 11.8 GRS 1758-258
274.1601 -14.0150 5.2 28.0 -97.5 0.3304 2.2 9.1 GX 17+2
275.7983 -30.5151 33.6 31.8 -64.7 -0.0560 -0.3 11.0 H1820-303
284.8821 -24.9528 3.1 38.3 -77.4 -1.1131 -3.8 8.6 HT1900.1-2455
262.8222 -33.7430 4.5 24.2 -46.1 -0.3036 -2.6 10.0 GX 354-0
205.3754 -4.8139 2.3 40.5 92.7 2.5311 5.0 ------ UNKNOWN
260.0713 -24.8549 0.8 16.8 -62.0 1.5985 14.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
567.300600 579.700590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
264.8774 -44.5095 3.7 52.7 169.5 0.5575 3.1 6.8 4U 1735-44
156.6530 -73.0914 2.0 31.6 91.9 0.3898 5.8 ------ UNKNOWN
84.9029 -55.0750 2.3 32.9 27.1 0.2494 5.1 ------ UNKNOWN
42.2113 -50.8879 2.1 25.6 -24.9 0.2151 5.5 ------ UNKNOWN
34.2533 -48.1142 2.8 26.9 -37.9 0.1815 4.1 ------ UNKNOWN
39.6340 -30.0986 1.9 45.4 -36.8 0.4411 6.0 ------ UNKNOWN
331.1192 -33.6989 2.0 45.2 -121.4 0.9726 5.8 ------ UNKNOWN
Plot creation:
Wed Mar 8 21:25:08 EST 2017