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
293.4245 57.9958 0.0088 41.1878 43.9055 3.2879857 22.014 TRIG_01262764
Foreground time interval of the image:
-1.304 15.269 (delta_t = 16.573 [sec])
Background time interval of the image:
-239.432 -1.304 (delta_t = 238.128 [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 -1.304 sec. to 30.984 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.55530 ( -0.119848 0.120571 )
Norm@50keV : 8.05350E-03 ( -0.000575437 0.000574305 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 55.57 using 59 bins.
Reduced chi-squared = 0.974912
# Null hypothesis probability of 5.29e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 32.29 sec: 1.02113 ( -0.075333 0.0755 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.44663e-06 ( -1.85643e-07 1.86475e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -1.304 sec. to 30.984 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.990803 ( -0.543441 0.484919 )
Epeak [keV] : 92.6594 ( -23.2979 205.093 )
Norm@50keV : 1.52430E-02 ( -0.00630931 0.0124168 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.56 using 59 bins.
Reduced chi-squared = 0.920714
# Null hypothesis probability of 6.43e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 32.29 sec: 0.995257 ( -0.078542 0.078653 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.37022e-06 ( -1.98474e-07 1.98572e-07 ) ergs/cm2
Band function
Time interval is from -1.304 sec. to 30.984 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] : 15.5022 (-1.28808 1.42061)
R^2/D10^2 : 0.102843 (-0.0278391 0.037656)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 88.52 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.72e-03 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.661e-07 2.147e-08
25- 50 6.799e-07 7.572e-08
50-150 1.128e-06 1.522e-07
15-150 1.974e-06 1.716e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.017 (-57.5794 -199.057)
Norm : 4.17147 (-0.291457 0.327108)
------------------------------------------------------------
#Fit statistic : Chi-Squared 52.40 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.48e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.355e-07 2.963e-08
25- 50 6.452e-07 8.331e-08
50-150 1.414e-06 4.488e-07
15-150 2.395e-06 5.614e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.33630 (-1.68411 2.08139)
R1^2/D10^2 : 1.33574 (-0.809476 2.66169)
kT2 [keV] : 22.3590 (-3.47421 6.03438)
R2^2/D10^2 : 2.29182E-02 (-0.013951 0.0126372)
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.54 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.07e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.158e-07 1.380e-07
25- 50 6.404e-07 1.888e-07
50-150 1.387e-06 4.261e-07
15-150 2.343e-06 6.950e-07
Peak spectrum fit
Power-law model
Time interval is from -0.292 sec. to 0.708 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.37332 ( -0.209622 0.212514 )
Norm@50keV : 3.27189E-02 ( -0.00405559 0.00404904 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.62 using 59 bins.
Reduced chi-squared = 0.800351
# Null hypothesis probability of 8.60e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 3.96115 ( -0.50366 0.50475 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.17965e-07 ( -4.31819e-08 4.3345e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.292 sec. to 0.708 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.36975 ( -0.752833 1.21432 )
Epeak [keV] : 9991.73 ( -9979.55 -9979.55 )
Norm@50keV : 3.28460E-02 ( -0.0244364 0.0464706 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.62 using 59 bins.
Reduced chi-squared = 0.814643
# Null hypothesis probability of 8.38e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 3.95576 ( -0.51164 0.49687 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.17614e-07 ( -4.3791e-08 4.14815e-08 ) ergs/cm2
Band function
Time interval is from -0.292 sec. to 0.708 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] : 19.1156 (-2.96634 3.49085)
R^2/D10^2 : 0.205089 (-0.0882568 0.155314)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 65.17 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.14e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.470e-08 3.560e-09
25- 50 7.099e-08 1.451e-08
50-150 1.909e-07 3.830e-08
15-150 2.766e-07 5.160e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-48.6816 -200)
Norm : 16.4214 (-2.03916 2.03916)
------------------------------------------------------------
#Fit statistic : Chi-Squared 48.50 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.81e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.089e-08 2.325e-08
25- 50 7.866e-08 4.212e-08
50-150 1.725e-07 9.525e-08
15-150 2.921e-07 1.611e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.46910 (-1.56405 2.13183)
R1^2/D10^2 : 9.61770 (-6.88924 29.3361)
kT2 [keV] : 26.7683 (-5.28071 8.96432)
R2^2/D10^2 : 5.77972E-02 (-0.0357691 0.0656619)
------------------------------------------------------------
#Fit statistic : Chi-Squared 42.99 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.80e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.998e-08 2.092e-08
25- 50 6.741e-08 2.913e-08
50-150 2.149e-07 1.135e-07
15-150 3.223e-07 9.635e-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: 1.42794 ( -0.109189 0.109145 )
Norm@50keV : 1.35112E-02 ( -0.000867086 0.00086689 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 44.49 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.86e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 16.57 sec: 1.65615 ( -0.112245 0.11253 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.1513e-06 ( -1.47453e-07 1.47865e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.868286 ( -0.492765 0.444562 )
Epeak [keV] : 109.748 ( -28.4084 189.053 )
Norm@50keV : 2.47898E-02 ( -0.00929433 0.0167296 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 39.77 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.50e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 16.57 sec: 1.61350 ( -0.117 0.11731 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.09553e-06 ( -1.56288e-07 1.55857e-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) = 6.20e-07
S(50-100 keV) = 8.46e-07
T90 vs. Hardness ratio plot
T90 = 24.9760000705719 sec.
Hardness ratio (energy fluence ratio) = 1.36452
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.48258
Count Ratio (50-100 keV) / (15-25 keV) = 1.23836
Mask shadow pattern
IMX = 6.304651909874337E-01, IMY = -6.068264940130329E-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:
-239.432000 -1.304000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9733 -15.6284 1.8 43.1 -123.7 6.8004 6.5 0.8 Sco X-1
254.3954 35.1394 0.0 18.1 -13.7 -0.4463 -1.4 12.6 Her X-1
262.9935 -24.7395 7.5 46.3 -150.8 0.9613 1.5 0.9 GX 1+4
268.4214 -1.4883 4.6 22.8 -158.6 0.7606 2.5 3.9 SW J1753.5-0127
270.2802 -25.0840 27.0 46.5 -159.9 0.3069 0.4 0.4 GX 5-1
270.3084 -25.7472 43.9 47.1 -159.9 0.1979 0.3 0.4 GRS 1758-258
273.9235 -13.9075 8.5 35.7 -167.1 0.5394 1.4 9.1 GX 17+2
275.9483 -30.4184 5.5 52.3 -165.7 -1.9432 -2.1 3.3 H1820-303
285.1383 -24.8872 92.5 49.2 -177.7 0.1036 0.1 5.9 HT1900.1-2455
288.8062 11.1020 4.9 22.7 136.7 -0.8814 -2.4 9.4 GRS 1915+105
299.5921 35.2025 0.7 31.2 80.0 9.2942 15.8 0.1 Cyg X-1
308.3209 40.8258 0.0 39.5 74.3 1.9637 1.4 12.2 Cyg X-3
262.8678 -33.8569 18.0 55.3 -151.8 -0.9596 -0.6 6.2 GX 354-0
276.9096 40.5264 3.3 20.8 43.6 1.1801 3.5 ------ UNKNOWN
270.5634 7.5128 3.1 14.1 -168.7 1.0728 3.8 ------ UNKNOWN
238.1696 47.5408 2.7 35.4 -11.6 1.6725 4.3 ------ UNKNOWN
279.8446 -29.3584 3.1 52.0 -170.1 3.4226 3.7 ------ UNKNOWN
277.4714 -25.7415 2.4 48.0 -168.6 3.2085 4.8 ------ UNKNOWN
233.6866 36.3475 2.1 33.1 -32.1 2.2655 5.5 ------ UNKNOWN
233.0136 11.7468 2.3 34.4 -77.1 2.8978 5.0 ------ UNKNOWN
218.5082 20.8075 3.5 45.6 -57.8 5.1826 3.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-1.304000 15.268610
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0203 -15.6993 22.2 43.1 -123.8 0.0712 0.5 4.3 Sco X-1
254.3025 35.3518 82.1 18.3 -13.4 -0.0066 -0.1 7.6 Her X-1
263.0156 -24.7527 1100.5 46.3 -150.8 -0.0010 -0.0 0.6 GX 1+4
268.4357 -1.2656 0.0 22.6 -158.7 0.0649 1.3 11.9 SW J1753.5-0127
270.2244 -25.0464 12.4 46.4 -159.8 -0.0805 -0.9 3.8 GX 5-1
270.4294 -25.7211 7.4 47.1 -160.0 0.1370 1.6 7.0 GRS 1758-258
273.8467 -14.0003 25.2 35.8 -166.9 -0.0294 -0.5 9.5 GX 17+2
275.9530 -30.2360 2.7 52.1 -165.7 -0.5177 -4.3 8.0 H1820-303
284.9206 -24.9288 7.9 49.2 -177.5 0.1554 1.5 6.3 HT1900.1-2455
288.6213 11.0370 0.0 22.6 137.1 0.1443 2.4 11.8 GRS 1915+105
299.5104 35.1511 73.3 31.1 80.0 0.0154 0.2 5.0 Cyg X-1
308.1686 41.0694 6.5 39.4 73.9 0.3933 1.8 7.5 Cyg X-3
263.0791 -33.8443 6.2 55.3 -152.0 -0.3689 -1.9 4.5 GX 354-0
293.4245 57.9958 0.5 41.2 43.9 3.2878 22.0 ------ UNKNOWN
225.9721 50.5900 2.3 43.7 -14.2 0.4016 5.0 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
96.868590 962.620100
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6674 35.3827 12.6 34.1 -100.4 1.9345 0.9 10.5 Her X-1
288.9506 10.8748 20.9 47.2 -160.0 -1.5564 -0.6 9.9 GRS 1915+105
299.5948 35.1989 0.4 23.2 -178.8 36.4609 31.6 0.3 Cyg X-1
308.2140 40.9730 2.1 19.4 158.7 5.9863 5.5 4.9 Cyg X-3
326.0162 38.1956 19.1 28.9 132.9 1.0524 0.6 10.5 Cyg X-2
152.3982 78.7384 4.5 41.3 3.3 4.1783 2.6 ------ UNKNOWN
296.7408 6.0470 2.7 52.0 -170.2 14.6164 4.3 ------ UNKNOWN
296.5343 3.5140 2.7 54.5 -169.8 15.3242 4.3 ------ UNKNOWN
179.7511 67.6037 3.3 45.3 -15.4 6.4023 3.5 ------ UNKNOWN
220.8581 65.6862 2.3 33.1 -32.1 7.3288 5.1 ------ UNKNOWN
Plot creation:
Wed Dec 18 17:43:30 EST 2024