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
293.7409 +21.9007 0.0156 22.1 39.2 0.0601 12.3 TRIG_00933083
------------------------------------------
Foreground time interval of the image:
-0.004 0.036 (delta_t = 0.040 [sec])
Background time interval of the image:
-119.128 -0.004 (delta_t = 119.124 [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 0.032000
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 0.032000
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 0.032000
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 -0.004 sec. to 0.036 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.66499 ( -0.292383 0.325451 )
Norm@50keV : 5.64547E-02 ( -0.0139373 0.0138783 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 38.42 using 59 PHA bins.
# Reduced chi-squared = 0.6740 for 57 degrees of freedom
# Null hypothesis probability = 9.720572e-01
Photon flux (15-150 keV) in 0.04 sec: 12.3126 ( -1.86827 1.86832 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.37365e-08 ( -4.1664e-09 4.27092e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.004 sec. to 0.036 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.424848 ( -4.77901 1.62048 )
Epeak [keV] : 21.0103 ( -11.7683 5.95178 )
Norm@50keV : 2.09445 ( -2.5229 7415.69 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.18 using 59 PHA bins.
# Reduced chi-squared = 0.6461 for 56 degrees of freedom
# Null hypothesis probability = 9.816619e-01
Photon flux (15-150 keV) in 0.04 sec: 12.1515 ( -1.8611 1.8605 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.03822e-08 ( -3.74928e-09 5.25668e-09 ) ergs/cm2
Band function
Time interval is from -0.004 sec. to 0.036 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.71668 ( -5.94966 -4.71668 )
beta : -3.43507 ( -1.09712 0.60483 )
Epeak [keV] : 22.7527 ( -2.9721 2.90724 )
Norm@50keV : 2.08933E+04 ( -3091.13 128944 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 32.40 using 59 PHA bins.
# Reduced chi-squared = 0.5892 for 55 degrees of freedom
# Null hypothesis probability = 9.934991e-01
Photon flux (15-150 keV) in 0.04 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] : 6.16031 (-0.80171 0.916036)
R^2/D10^2 : 42.6547 (-19.7363 36.6006)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.86 using 59 PHA bins.
# Reduced chi-squared = 0.6467 for 57 degrees of freedom
# Null hypothesis probability = 9.823499e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.927e-09 2.186e-09
25- 50 9.423e-09 2.454e-09
50-150 9.602e-10 5.394e-10
15-150 1.931e-08 4.172e-09
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 24.1595 (-6.2693 9.33273)
Norm : 124.048 (-36.8772 53.7624)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.51 using 59 PHA bins.
# Reduced chi-squared = 0.6406 for 57 degrees of freedom
# Null hypothesis probability = 9.841723e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.884e-09 1.762e-09
25- 50 8.905e-09 1.954e-09
50-150 3.600e-09 1.852e-09
15-150 2.139e-08 4.592e-09
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.77621 (-0.941992 0.958481)
R1^2/D10^2 : 54.2860 (-24.0987 58.7886)
kT2 [keV] : 52.6127 (-39.0829 -53.0612)
R2^2/D10^2 : 6.25236E-03 (-0.00591117 0.249298)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 30.61 using 59 PHA bins.
# Reduced chi-squared = 0.5566 for 55 degrees of freedom
# Null hypothesis probability = 9.968676e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.169e-09 2.674e-09
25- 50 8.872e-09 3.114e-09
50-150 7.460e-09 4.315e-09
15-150 2.550e-08 7.614e-09
Peak spectrum fit
Power-law model
Time interval is from -0.482 sec. to 0.518 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.76802 ( -0.624216 0.877474 )
Norm@50keV : 3.39068E-03 ( -0.00339063 0.00197108 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.17 using 59 PHA bins.
# Reduced chi-squared = 0.8801 for 57 degrees of freedom
# Null hypothesis probability = 7.271702e-01
Photon flux (15-150 keV) in 1 sec: 0.792056 ( -0.202798 0.203038 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.69711e-08 ( -1.26843e-08 1.42422e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.482 sec. to 0.518 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.97781 ( -1.16739 0.0198871 )
Epeak [keV] : 1.05508 ( -0.690994 26.8454 )
Norm@50keV : 1.03988E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.03 using 59 PHA bins.
# Reduced chi-squared = 0.9113 for 56 degrees of freedom
# Null hypothesis probability = 6.630305e-01
Photon flux (15-150 keV) in 1 sec: 0.787752 ( -0.199519 0.207536 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.66124e-08 ( -1.25023e-08 1.45783e-08 ) ergs/cm2
Band function
Time interval is from -0.482 sec. to 0.518 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -2.50993 ( 2.50993 2.50993 )
beta : -2.76804 ( -0.877768 0.62378 )
Epeak [keV] : 1.00902 ( -1.00902 -1.00902 )
Norm@50keV : 0.460832 ( -0.248753 0.26829 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 50.17 using 59 PHA bins.
# Reduced chi-squared = 0.9121 for 55 degrees of freedom
# Null hypothesis probability = 6.594151e-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] : 5.03754 (-1.77017 2.93263)
R^2/D10^2 : 5.90045 (-5.85136 44.702)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.01 using 59 PHA bins.
# Reduced chi-squared = 0.9827 for 57 degrees of freedom
# Null hypothesis probability = 5.121627e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.478e-08 8.495e-09
25- 50 9.835e-09 6.105e-09
50-150 4.146e-10 3.999e-10
15-150 2.503e-08 1.536e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 23.6284 (-13.0687 32.7277)
Norm : 7.83075 (-3.98042 13.9228)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.98 using 59 PHA bins.
# Reduced chi-squared = 0.9119 for 57 degrees of freedom
# Null hypothesis probability = 6.634170e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.381e-08 6.675e-09
25- 50 1.364e-08 7.420e-09
50-150 5.331e-09 4.642e-09
15-150 3.278e-08 1.457e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.09258 (-1.47053 1.91823)
R1^2/D10^2 : 54.6918 (-49.6038 3995.75)
kT2 [keV] : 14.0668 (-6.96468 19.3699)
R2^2/D10^2 : 5.82356E-02 (-0.0559987 0.137623)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.28 using 59 PHA bins.
# Reduced chi-squared = 0.8959 for 55 degrees of freedom
# Null hypothesis probability = 6.920818e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.475e-08 8.245e-09
25- 50 1.109e-08 6.015e-09
50-150 1.188e-08 8.840e-09
15-150 3.772e-08 2.003e-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: 2.66499 ( -0.292383 0.325451 )
Norm@50keV : 5.64547E-02 ( -0.0139373 0.0138783 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 38.42 using 59 PHA bins.
# Reduced chi-squared = 0.6740 for 57 degrees of freedom
# Null hypothesis probability = 9.720572e-01
Photon flux (15-150 keV) in 0.04 sec: 12.3126 ( -1.86827 1.86832 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.37365e-08 ( -4.1664e-09 4.27092e-09 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.424848 ( -4.77901 1.62048 )
Epeak [keV] : 21.0103 ( -11.7683 5.95178 )
Norm@50keV : 2.09445 ( -2.5229 7415.69 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 36.18 using 59 PHA bins.
# Reduced chi-squared = 0.6461 for 56 degrees of freedom
# Null hypothesis probability = 9.816619e-01
Photon flux (15-150 keV) in 0.04 sec: 12.1515 ( -1.8611 1.8605 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.03822e-08 ( -3.74928e-09 5.25668e-09 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.71668 ( -5.94966 -4.71668 )
beta : -3.43507 ( -1.09712 0.60483 )
Epeak [keV] : 22.7527 ( -2.9721 2.90724 )
Norm@50keV : 2.08933E+04 ( -3091.13 128944 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 32.40 using 59 PHA bins.
# Reduced chi-squared = 0.5892 for 55 degrees of freedom
# Null hypothesis probability = 9.934991e-01
Photon flux (15-150 keV) in 0.04 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) = 7.96e-09
S(50-100 keV) = 5.02e-09
T90 vs. Hardness ratio plot
T90 = 0.031999945640564 sec.
Hardness ratio (energy fluence ratio) = 0.630653
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.743198
Count Ratio (50-100 keV) / (15-25 keV) = 0.177889
Mask shadow pattern
IMX = 3.143563750842177E-01, IMY = -2.560243749428370E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.032000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.032000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.032000
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:
-119.128000 -0.004000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4250 35.3286 5.3 46.6 -13.8 -0.6652 -2.2 1.8 Her X-1
263.1703 -24.7999 5.1 34.9 -114.1 0.7933 2.3 9.4 GX 1+4
264.7414 -44.3675 7.4 49.4 -134.0 -1.3153 -1.6 4.9 4U 1735-44
268.3191 -1.3184 5.3 19.6 -71.2 -0.4262 -2.2 8.6 SW J1753.5-0127
270.1640 -25.1036 5.2 30.9 -123.2 0.6304 2.2 6.7 GX 5-1
270.3532 -25.8121 4.7 31.3 -124.3 0.6980 2.4 5.0 GRS 1758-258
274.0045 -14.0185 2.3 20.0 -113.0 0.9661 5.0 1.1 GX 17+2
275.9185 -30.4335 99.2 33.0 -136.6 0.0297 0.1 4.0 H1820-303
285.0276 -24.9212 124.5 25.7 -149.8 -0.0176 -0.1 0.5 HT1900.1-2455
288.7447 10.9913 4.8 10.4 29.4 0.4235 2.4 4.2 GRS 1915+105
299.5826 35.2186 1.0 36.3 40.7 3.5334 11.3 1.1 Cyg X-1
308.0179 41.0584 7.7 44.4 46.2 0.8540 1.5 7.6 Cyg X-3
263.0006 -33.7731 4.7 41.5 -123.9 1.1080 2.4 3.7 GX 354-0
327.2612 12.1552 2.4 40.8 96.3 3.7898 4.8 ------ UNKNOWN
330.6629 -38.4279 2.6 55.4 164.1 4.7075 4.5 ------ UNKNOWN
320.1021 -35.0409 2.4 46.7 167.4 2.0647 4.9 ------ UNKNOWN
297.8404 2.9554 2.9 10.3 101.0 0.6865 4.0 ------ UNKNOWN
249.8685 48.9906 1.9 58.3 -3.9 6.5838 6.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.004000 0.036000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.3911 35.2226 4.3 46.5 -13.9 0.0224 2.7 7.9 Her X-1
263.1129 -24.5959 190.6 34.8 -113.8 -0.0005 -0.1 10.6 GX 1+4
264.6395 -44.3296 35.9 49.4 -133.9 0.0062 0.3 8.5 4U 1735-44
268.5234 -1.4361 6.5 19.4 -71.6 -0.0092 -1.8 9.4 SW J1753.5-0127
270.1450 -25.1415 17.8 30.9 -123.3 -0.0044 -0.6 8.4 GX 5-1
270.2795 -25.6872 24.6 31.3 -124.1 -0.0033 -0.5 3.6 GRS 1758-258
273.9228 -14.2208 0.0 20.2 -113.3 0.0082 1.6 12.1 GX 17+2
276.0083 -30.2009 0.0 32.8 -136.5 0.0158 2.5 10.9 H1820-303
284.8705 -24.9311 6.3 25.7 -149.4 -0.0090 -1.8 9.0 HT1900.1-2455
288.5968 11.0213 0.0 10.4 28.6 -0.0020 -0.5 12.7 GRS 1915+105
299.8305 35.1098 0.0 36.3 41.1 0.0143 1.7 13.0 Cyg X-1
307.9672 40.8744 10.3 44.2 46.3 0.0182 1.1 8.0 Cyg X-3
263.2249 -33.9311 0.0 41.5 -124.2 -0.0174 -1.4 13.1 GX 354-0
293.7409 21.9007 0.9 22.1 39.2 0.0601 12.3 ------ UNKNOWN
291.8297 -41.0274 1.6 41.8 -160.1 0.0493 7.2 ------ UNKNOWN
265.6535 -0.6181 2.5 22.2 -68.7 0.0260 4.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
Plot creation:
Tue Nov 5 03:54:07 EST 2019