Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte
Image
Pre-slew 15.0-350.0 keV image (Event data)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
226.3394 28.9013 0.0086 33.0107 -23.3286 3.0169641 22.221 TRIG_01248132
Foreground time interval of the image:
-34.864 11.333 (delta_t = 46.197 [sec])
Background time interval of the image:
-128.667 -34.864 (delta_t = 93.803 [sec])
Lightcurves
Notes:
- 1) The mask-weighted light curves are using the flight position.
- 2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 3) 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.
- 4) 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.
- 5) 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 1.024000
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 1.024000
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 1.024000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Quad-rate summed light curves (from T0-300s to T0+1000s)
Spectral Evolution
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using 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.
Time averaged spectrum fit using the average DRM
Power-law model
Time interval is from -34.864 sec. to 41.244 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.71347 ( -0.0816449 0.0820577 )
Norm@50keV : 4.18383E-03 ( -0.000191589 0.000191086 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.32 using 59 bins.
Reduced chi-squared = 0.952982
# Null hypothesis probability of 5.76e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 76.11 sec: 0.558325 ( -0.02654 0.026618 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.94572e-06 ( -1.39891e-07 1.40318e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -34.864 sec. to 41.244 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.39092 ( -0.332006 0.307563 )
Epeak [keV] : 93.5152 ( -25.2087 494.998 )
Norm@50keV : 6.08426E-03 ( -0.0017816 0.00278104 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.08 using 59 bins.
Reduced chi-squared = 0.912143
# Null hypothesis probability of 6.61e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 76.11 sec: 0.547264 ( -0.028443 0.028498 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.86894e-06 ( -1.57992e-07 1.57703e-07 ) ergs/cm2
Band function
Time interval is from -34.864 sec. to 41.244 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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] : 13.5817 ( )
R^2/D10^2 : 8.30546E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 165.96 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.40e-12 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.469e-07 2.173e-08
25- 50 8.905e-07 5.404e-08
50-150 1.064e-06 1.008e-07
15-150 2.202e-06 1.081e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 137.028 (-26.8949 31.7545)
Norm : 2.29268 (-0.128463 0.16273)
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.34 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.86e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.513e-07 3.478e-08
25- 50 8.251e-07 5.754e-08
50-150 1.567e-06 4.262e-07
15-150 2.843e-06 4.669e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.04201 (-0.890417 0.964855)
R1^2/D10^2 : 0.639516 (-0.228329 0.397279)
kT2 [keV] : 25.6816 (-3.62863 5.30905)
R2^2/D10^2 : 6.20041E-03 (-0.00306539 0.00488503)
------------------------------------------------------------
#Fit statistic : Chi-Squared 46.83 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.75e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.435e-07 6.663e-08
25- 50 8.470e-07 9.982e-08
50-150 1.584e-06 3.090e-07
15-150 2.874e-06 4.338e-07
Peak spectrum fit
Power-law model
Time interval is from 11.304 sec. to 12.304 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.53134 ( -0.145253 0.147308 )
Norm@50keV : 2.33665E-02 ( -0.0020535 0.00204693 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 71.95 using 59 bins.
Reduced chi-squared = 1.26228
# Null hypothesis probability of 8.77e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 2.94242 ( -0.26183 0.26239 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.20607e-07 ( -2.07681e-08 2.09168e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 11.304 sec. to 12.304 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.906438 ( -0.672243 0.579934 )
Epeak [keV] : 91.2121 ( -24.4971 350.708 )
Norm@50keV : 4.72094E-02 ( -0.0222241 0.0514989 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 68.53 using 59 bins.
Reduced chi-squared = 1.22375
# Null hypothesis probability of 1.21e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 2.86327 ( -0.2721 0.27229 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.13359e-07 ( -2.23077e-08 2.22164e-08 ) ergs/cm2
Band function
Time interval is from 11.304 sec. to 12.304 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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] : 15.4489 (-1.5891 1.78217)
R^2/D10^2 : 0.303669 (-0.097325 0.141757)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 91.75 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.40e-03 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.510e-08 2.355e-09
25- 50 6.160e-08 7.115e-09
50-150 1.013e-07 1.690e-08
15-150 1.780e-07 1.910e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.344 (-61.4119 -199.359)
Norm : 12.0704 (-1.03349 1.03505)
------------------------------------------------------------
#Fit statistic : Chi-Squared 69.57 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.23e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.006e-08 4.290e-09
25- 50 5.782e-08 1.192e-08
50-150 1.268e-07 5.370e-08
15-150 2.147e-07 5.625e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.01944 (-2.27803 2.70578)
R1^2/D10^2 : 2.67672 (-1.6905 8.20029)
kT2 [keV] : 23.6662 (-4.8883 10.0688)
R2^2/D10^2 : 5.32352E-02 (-0.0396333 0.0532447)
------------------------------------------------------------
#Fit statistic : Chi-Squared 68.73 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.01e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.658e-08 1.284e-08
25- 50 5.862e-08 2.109e-08
50-150 1.276e-07 6.391e-08
15-150 2.128e-07 8.235e-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: 1.59111 ( -0.114981 0.11533 )
Norm@50keV : 3.75682E-03 ( -0.000242222 0.000241321 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.88 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.67e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 46.2 sec: 0.481449 ( -0.0323783 0.0324839 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.62498e-06 ( -1.10941e-07 1.11439e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.37086 ( -0.455235 0.280488 )
Epeak [keV] : 145.802 ( -67.033 -145.802 )
Norm@50keV : 4.82785E-03 ( -0.00126199 0.0031563 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.07 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.61e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 46.2 sec: 0.475367 ( -0.034258 0.034307 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.59943e-06 ( -1.22333e-07 1.21682e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : ( )
beta : ( )
Epeak [keV] : ( )
Norm@50keV : ( )
------------------------------------------------------------
Photon flux (15-150 keV) in 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) = 7.99e-07
S(50-100 keV) = 9.82e-07
T90 vs. Hardness ratio plot
T90 = 62.9119999408722 sec.
Hardness ratio (energy fluence ratio) = 1.22904
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.29008
Count Ratio (50-100 keV) / (15-25 keV) = 0.845859
Mask shadow pattern
IMX = 5.965619257236635E-01, IMY = 2.572726785250722E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
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:
-128.667400 -34.864000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9883 -15.6333 0.3 15.2 146.4 7.0406 38.4 0.7 Sco X-1
254.4575 35.3422 82.0 40.9 16.1 -0.0448 -0.1 0.0 Her X-1
255.9685 -37.7091 12.3 39.2 151.6 0.3697 0.9 8.1 4U 1700-377
256.6103 -36.2617 0.0 38.2 149.7 1.0016 2.6 12.9 GX 349+2
262.9234 -24.6171 7.2 33.1 129.4 0.5572 1.6 9.0 GX 1+4
264.9245 -44.2705 4.4 48.4 148.7 1.9345 2.6 13.3 4U 1735-44
268.5101 -1.5946 0.0 31.0 84.1 0.1772 0.5 12.1 SW J1753.5-0127
270.2558 -24.9803 193.6 38.8 123.5 -0.0389 -0.1 6.1 GX 5-1
270.2312 -25.8695 7.0 39.3 124.7 1.0814 1.7 8.5 GRS 1758-258
274.1566 -14.0313 7.5 38.0 104.9 0.9327 1.5 8.8 GX 17+2
263.0079 -33.8593 48.7 39.5 140.7 0.1275 0.2 1.7 GX 354-0
249.0192 -51.0199 2.6 49.7 165.4 2.7815 4.5 ------ UNKNOWN
232.0822 -11.7983 3.9 10.9 -155.7 0.5285 2.9 ------ UNKNOWN
193.8183 -28.8491 2.0 49.3 -132.2 5.5533 5.7 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-34.864000 11.332600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9788 -15.6311 5.9 15.2 146.5 -0.2036 -2.0 0.5 Sco X-1
254.6152 35.4610 10.5 41.0 16.2 0.2116 1.1 10.5 Her X-1
256.1305 -37.9737 0.0 39.5 151.6 0.5491 2.6 10.3 4U 1700-377
256.3073 -36.5797 7.4 38.4 150.3 -0.3140 -1.6 11.2 GX 349+2
263.0807 -24.6019 4.4 33.2 129.2 -0.4654 -2.6 9.5 GX 1+4
264.8614 -44.5697 12.3 48.6 149.0 -0.3886 -0.9 8.8 4U 1735-44
268.5215 -1.3921 6.0 31.0 83.7 -0.3883 -1.9 9.9 SW J1753.5-0127
270.3008 -25.0302 5.1 38.9 123.5 0.6760 2.3 3.1 GX 5-1
270.2468 -25.7317 5.5 39.2 124.5 -0.6463 -2.1 3.1 GRS 1758-258
273.9764 -14.0642 5.9 37.9 105.0 -0.6506 -2.0 2.4 GX 17+2
263.1525 -33.7692 5.3 39.5 140.5 0.5224 2.2 9.0 GX 354-0
249.5711 10.3686 2.6 17.4 38.0 0.4526 4.4 ------ UNKNOWN
237.5459 29.1022 2.7 31.4 -5.1 0.5080 4.2 ------ UNKNOWN
226.3394 28.9013 0.5 33.0 -23.3 3.0175 22.2 ------ UNKNOWN
216.5288 -42.2369 2.5 44.1 -162.7 0.8330 4.5 ------ UNKNOWN
216.3657 23.8596 2.3 33.3 -42.1 0.6668 5.0 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
83.132590 962.963700
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9833 -15.6434 1.1 48.0 145.0 47.7400 10.7 0.3 Sco X-1
254.4042 35.3603 3.6 24.5 56.9 4.4982 3.2 2.8 Her X-1
280.4144 45.1015 2.2 45.2 43.1 11.9190 5.3 ------ UNKNOWN
281.5037 63.8542 2.3 49.2 18.0 7.8630 5.1 ------ UNKNOWN
233.5351 25.8989 2.6 7.0 102.8 4.2097 4.4 ------ UNKNOWN
195.5827 -4.7946 2.6 44.8 -144.2 9.7945 4.5 ------ UNKNOWN
184.5626 5.6531 2.7 45.8 -122.8 21.3498 4.2 ------ UNKNOWN
181.6374 19.1830 3.1 41.8 -103.7 18.1636 3.7 ------ UNKNOWN
Plot creation:
Sat Oct 19 18:18:58 EDT 2024