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
223.4671 -16.8828 0.0101 30.4645 32.0511 4.9544864 19.048 TRIG_01149250
Foreground time interval of the image:
-35.800 69.901 (delta_t = 105.701 [sec])
Background time interval of the image:
-239.000 -35.800 (delta_t = 203.200 [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
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)
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 -35.800 sec. to 346.680 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.73281 ( -0.13529 0.137867 )
Norm@50keV : 1.74126E-03 ( -0.000138895 0.000137522 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.38 using 59 bins.
Reduced chi-squared = 0.954035
# Null hypothesis probability of 5.74e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 382.5 sec: 0.233984 ( -0.0177 0.017747 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.15305e-06 ( -5.08339e-07 5.13353e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -35.800 sec. to 346.680 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.55859 ( -0.561358 0.302475 )
Epeak [keV] : 121.539 ( -61.4001 -121.539 )
Norm@50keV : 2.14679E-03 ( -0.000431431 0.0020087 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.04 using 59 bins.
Reduced chi-squared = 0.965
# Null hypothesis probability of 5.49e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 382.5 sec: 0.231865 ( -0.018755 0.018719 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.06152e-06 ( -5.75444e-07 5.70897e-07 ) ergs/cm2
Band function
Time interval is from -35.800 sec. to 346.680 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] : 12.7831 (-1.18909 1.33319)
R^2/D10^2 : 4.38066E-02 (-0.0134016 0.0190328)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 99.42 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.31e-04 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.807e-07 8.071e-08
25- 50 1.964e-06 1.844e-07
50-150 2.009e-06 3.161e-07
15-150 4.553e-06 4.188e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 132.407 (-38.6166 57.0276)
Norm : 0.962107 (-0.0863913 0.116122)
------------------------------------------------------------
#Fit statistic : Chi-Squared 54.87 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.55e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.538e-07 9.964e-08
25- 50 1.735e-06 2.134e-07
50-150 3.243e-06 1.188e-06
15-150 5.931e-06 1.427e-06
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.56991 (-1.75603 1.82205)
R1^2/D10^2 : 0.339348 (-0.188482 0.725466)
kT2 [keV] : 23.9913 (-5.63518 11.4623)
R2^2/D10^2 : 3.36227E-03 (-0.00252127 0.00627028)
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.15 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.95e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.700e-07 2.873e-07
25- 50 1.742e-06 5.523e-07
50-150 3.261e-06 1.407e-06
15-150 5.973e-06 1.938e-06
Peak spectrum fit
Power-law model
Time interval is from 247.708 sec. to 248.708 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.04943 ( -0.589952 0.755407 )
Norm@50keV : 6.44882E-03 ( -0.00303616 0.00284285 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.19 using 59 bins.
Reduced chi-squared = 0.89807
# Null hypothesis probability of 6.92e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.990039 ( -0.367097 0.367611 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.96733e-08 ( -2.47705e-08 2.5859e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 247.708 sec. to 248.708 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.618922 ( -4.32936 1.52789 )
Epeak [keV] : 45.7213 ( -44.5775 -45.7537 )
Norm@50keV : 3.74113E-02 ( -0.0371404 4.90489 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 50.20 using 59 bins.
Reduced chi-squared = 0.896429
# Null hypothesis probability of 6.93e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.959504 ( -0.37115 0.372636 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.77511e-08 ( -2.34633e-08 2.56113e-08 ) ergs/cm2
Band function
Time interval is from 247.708 sec. to 248.708 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] : 12.3253 (-4.33209 5.31551)
R^2/D10^2 : 0.225418 (-0.225366 0.865823)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.17 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.92e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.256e-09 4.768e-09
25- 50 2.355e-08 1.457e-08
50-150 2.189e-08 1.655e-08
15-150 5.270e-08 3.390e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 66.5256 (-39.424 -66.5542)
Norm : 5.07902 (-2.25834 3.98568)
------------------------------------------------------------
#Fit statistic : Chi-Squared 50.40 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.19e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.295e-08 8.105e-09
25- 50 2.032e-08 1.280e-08
50-150 2.512e-08 2.108e-08
15-150 5.840e-08 4.072e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.69696 (-3.70418 53.7676)
R1^2/D10^2 : 13.9142 (-13.8592 -13.8592)
kT2 [keV] : 14.8120 (-5.36511 -14.8164)
R2^2/D10^2 : 9.62400E-02 (-0.095581 0.467641)
------------------------------------------------------------
#Fit statistic : Chi-Squared 49.34 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.90e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.296e-08 6.845e-09
25- 50 1.984e-08 1.218e-08
50-150 2.584e-08 1.707e-08
15-150 5.864e-08 3.552e-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: 1.83570 ( -0.127911 0.130415 )
Norm@50keV : 3.05058E-03 ( -0.000226259 0.000223672 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 48.56 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.79e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 105.7 sec: 0.426323 ( -0.029458 0.0295604 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.96554e-06 ( -2.20993e-07 2.22866e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.83495 ( -0.467388 0.599654 )
Epeak [keV] : 9996.42 ( -9997.78 -9997.79 )
Norm@50keV : 3.05369E-03 ( -0.000831163 0.00252333 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 48.56 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.50e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 105.7 sec: 0.426256 ( -0.031209 0.029348 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.96467e-06 ( -2.54917e-07 2.20892e-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) = 1.69e-06
S(50-100 keV) = 2.03e-06
T90 vs. Hardness ratio plot
T90 = 315.871999979019 sec.
Hardness ratio (energy fluence ratio) = 1.20118
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.24716
Count Ratio (50-100 keV) / (15-25 keV) = 0.803123
Mask shadow pattern
IMX = 4.985528199833181E-01, IMY = -3.121490077274349E-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:
-239.000000 -35.800000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9690 -15.6341 0.5 18.6 -10.7 9.4730 24.4 0.7 Sco X-1
254.4635 35.3357 43.3 33.2 174.4 0.1387 0.3 0.5 Her X-1
255.8888 -37.7078 8.4 41.4 -27.5 -0.9710 -1.4 9.4 4U 1700-377
256.3642 -36.4664 3.4 40.3 -28.5 2.2399 3.4 4.3 GX 349+2
262.8304 -24.7922 8.8 31.6 -45.0 -0.7899 -1.3 10.1 GX 1+4
264.9708 -44.3563 5.0 49.9 -33.6 -3.0117 -2.3 11.3 4U 1735-44
268.4711 -1.6311 0.0 21.9 -95.3 0.9141 1.9 12.4 SW J1753.5-0127
270.3224 -25.1605 5.0 36.0 -54.4 1.6850 2.3 5.3 GX 5-1
270.1874 -25.8318 2.9 36.4 -53.5 2.9438 4.0 8.2 GRS 1758-258
274.1186 -14.1905 0.0 31.8 -73.8 1.0804 1.5 11.3 GX 17+2
276.0333 -30.2435 3.6 43.2 -54.6 3.5738 3.2 9.3 H1820-303
288.9266 11.0023 5.6 42.4 -120.0 2.5619 2.1 8.3 GRS 1915+105
262.8617 -33.9302 9.0 39.7 -37.6 0.8811 1.3 8.5 GX 354-0
214.9436 -28.9702 2.6 44.2 24.9 2.4108 4.4 ------ UNKNOWN
233.4811 18.9766 2.8 20.9 124.9 2.0033 4.2 ------ UNKNOWN
250.6310 50.8910 3.2 48.1 166.3 6.0532 3.6 ------ UNKNOWN
250.4667 -53.7199 2.6 56.6 -19.3 6.7801 4.5 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-35.800000 69.900600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.1194 -15.6866 7.0 18.6 -11.2 0.3341 1.6 8.5 Sco X-1
254.5951 35.3379 4.8 33.3 174.6 0.6451 2.4 6.7 Her X-1
256.1428 -37.7168 6.4 41.4 -27.8 -0.6758 -1.8 10.6 4U 1700-377
256.3746 -36.3528 8.5 40.2 -28.6 -0.4629 -1.4 5.1 GX 349+2
263.0394 -24.6685 2.9 31.6 -45.4 1.3786 4.0 4.9 GX 1+4
264.7678 -44.3774 4.0 49.8 -33.4 2.5094 2.9 4.5 4U 1735-44
268.1849 -1.5411 0.0 21.6 -95.4 0.3637 1.2 12.2 SW J1753.5-0127
270.2610 -25.0630 75.6 35.9 -54.4 0.0649 0.2 1.6 GX 5-1
270.3019 -25.7440 34.2 36.4 -53.7 0.1480 0.3 0.1 GRS 1758-258
273.9488 -14.1512 21.0 31.7 -73.7 0.2342 0.6 7.6 GX 17+2
275.8491 -30.4910 34.9 43.2 -54.2 0.2318 0.3 8.4 H1820-303
288.9603 10.9917 12.3 42.4 -120.0 -0.7650 -0.9 9.9 GRS 1915+105
263.1418 -33.8649 20.2 39.7 -38.0 -0.2400 -0.6 7.8 GX 354-0
213.6667 24.5510 2.6 38.8 110.3 2.8230 4.4 ------ UNKNOWN
223.4671 -16.8828 0.6 30.5 32.1 4.9528 19.0 ------ UNKNOWN
239.9032 18.1397 2.0 16.8 139.3 1.2689 5.8 ------ UNKNOWN
229.5978 -34.8757 2.3 41.1 5.1 1.6338 5.0 ------ UNKNOWN
267.9315 -30.2934 2.3 38.7 -46.4 2.2047 5.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
147.100600 729.500600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.5473 35.4052 33.2 34.3 -145.4 0.4307 0.3 5.8 Her X-1
171.3962 8.6553 2.1 46.4 53.8 12.2631 5.5 ------ UNKNOWN
171.4353 5.4476 3.8 47.8 49.8 8.0689 3.0 ------ UNKNOWN
171.4109 5.8565 3.2 47.6 50.3 9.7100 3.8 ------ UNKNOWN
243.0515 68.6887 3.1 48.2 166.3 14.9854 3.8 ------ UNKNOWN
213.6688 13.9939 3.0 9.8 -3.3 3.2664 3.9 ------ UNKNOWN
244.7622 -9.4346 2.2 42.0 -68.2 14.2359 5.4 ------ UNKNOWN
Plot creation:
Fri Jun 16 09:17:13 EDT 2023