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
260.8538 -26.0236 0.0177 5.6916 -49.0121 0.3633903 10.880 TRIG_01119268
Foreground time interval of the image:
-0.300 6.664 (delta_t = 6.964 [sec])
Background time interval of the image:
-147.939 -0.300 (delta_t = 147.639 [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 -0.300 sec. to 6.664 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.80470 ( -0.307569 0.34629 )
Norm@50keV : 1.86445E-03 ( -0.000494046 0.000513556 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 40.04 using 59 bins.
Reduced chi-squared = 0.702456
# Null hypothesis probability of 9.57e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 6.964 sec: 0.446665 ( -0.062169 0.062185 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.43618e-07 ( -2.45489e-08 2.58623e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.300 sec. to 6.664 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.418602 ( -4.28569 1.36784 )
Epeak [keV] : 21.6806 ( -20.336 5.90177 )
Norm@50keV : 0.351386 ( -0.343527 154.998 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 33.95 using 59 bins.
Reduced chi-squared = 0.60625
# Null hypothesis probability of 9.91e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 6.964 sec: 0.447366 ( -0.062751 0.061858 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.20789e-07 ( -1.98363e-08 2.29611e-08 ) ergs/cm2
Band function
Time interval is from -0.300 sec. to 6.664 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] : 5.94633 (-0.757167 0.861629)
R^2/D10^2 : 1.74065 (-0.787063 1.47086)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 34.50 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.92e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.621e-08 1.342e-08
25- 50 5.497e-08 1.456e-08
50-150 4.851e-09 2.915e-09
15-150 1.160e-07 2.427e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 21.1329 (-5.19673 7.50266)
Norm : 5.12433 (-1.48121 2.23123)
------------------------------------------------------------
#Fit statistic : Chi-Squared 35.25 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.90e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.791e-08 1.010e-08
25- 50 5.287e-08 1.179e-08
50-150 1.734e-08 9.985e-09
15-150 1.281e-07 2.531e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.30031 (-5.30031 1.26842)
R1^2/D10^2 : 2.49672 (-2.49672 -2.49672)
kT2 [keV] : 12.0182 (-12.0182 -12.0182)
R2^2/D10^2 : 2.05447E-02 (-0.0205447 2.83511)
------------------------------------------------------------
#Fit statistic : Chi-Squared 33.57 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.90e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.747e-08 3.538e-08
25- 50 5.372e-08 3.239e-08
50-150 1.412e-08 8.061e-09
15-150 1.253e-07 7.761e-08
Peak spectrum fit
Power-law model
Time interval is from 0.764 sec. to 1.764 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.86729 ( -0.39443 0.472911 )
Norm@50keV : 4.44580E-03 ( -0.00148704 0.00152267 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 50.84 using 59 bins.
Reduced chi-squared = 0.89193
# Null hypothesis probability of 7.04e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.11231 ( -0.178197 0.17821 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.04255e-08 ( -9.98002e-09 1.05717e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.764 sec. to 1.764 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.96683 ( -1.85652 0.0260542 )
Epeak [keV] : 1.20779 ( -0.780747 22.3663 )
Norm@50keV : 1.74946E-02 ( -0.00642967 0.0103788 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.04 using 59 bins.
Reduced chi-squared = 0.911429
# Null hypothesis probability of 6.63e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.08471 ( -0.174346 0.17363 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.70446e-08 ( -9.54989e-09 1.0206e-08 ) ergs/cm2
Band function
Time interval is from 0.764 sec. to 1.764 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] : 6.26964 (-1.10561 1.24413)
R^2/D10^2 : 3.23744 (-1.76819 4.46217)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 56.60 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.90e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.796e-08 5.456e-09
25- 50 1.968e-08 7.035e-09
50-150 2.151e-09 1.384e-09
15-150 3.980e-08 1.085e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 21.9457 (-6.84274 10.8442)
Norm : 11.9251 (-4.16769 7.41993)
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.61 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.77e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.993e-08 4.625e-09
25- 50 1.870e-08 5.235e-09
50-150 6.517e-09 4.031e-09
15-150 4.514e-08 1.073e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 1.30964 (-1.37266 1.90132)
R1^2/D10^2 : 4.72846E+04 (-49332.4 -49373.6)
kT2 [keV] : 7.34164 (-1.44533 2.34071)
R2^2/D10^2 : 1.47868 (-1.08882 1.25128)
------------------------------------------------------------
#Fit statistic : Chi-Squared 48.52 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.19e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.883e-08 1.009e-08
25- 50 1.941e-08 1.114e-08
50-150 4.859e-09 3.401e-09
15-150 4.310e-08 2.198e-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: 2.80470 ( -0.307569 0.34629 )
Norm@50keV : 1.86445E-03 ( -0.000494046 0.000513556 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 40.04 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.57e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 6.964 sec: 0.446573 ( -0.0621525 0.0621814 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.43575e-07 ( -2.4544e-08 2.58801e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -0.415065 ( -4.29685 1.55314 )
Epeak [keV] : 21.6744 ( -20.3132 5.92693 )
Norm@50keV : 0.349338 ( -0.342012 154.99 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 33.95 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.91e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 6.964 sec: 0.428773 ( -0.060969 0.061232 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.208e-07 ( -1.00665e-08 2.00891e-08 ) 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) = 4.83e-08
S(50-100 keV) = 2.76e-08
T90 vs. Hardness ratio plot
T90 = 4.70799994468689 sec.
Hardness ratio (energy fluence ratio) = 0.571429
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.689465
Count Ratio (50-100 keV) / (15-25 keV) = 0.0865792
Mask shadow pattern
IMX = 6.537020839191149E-02, IMY = 7.523190730335999E-02
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:
-147.939380 -0.300000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9858 -15.6644 1.0 23.8 -49.3 3.4506 11.4 1.5 Sco X-1
256.0870 -37.9529 2.7 12.4 -127.9 1.0133 4.3 8.1 4U 1700-377
256.4425 -36.4267 2.9 11.2 -123.2 0.9484 3.9 0.4 GX 349+2
263.0219 -24.7404 18.8 5.2 -24.7 -0.1589 -0.6 0.8 GX 1+4
264.9107 -44.3063 28.3 15.4 -164.8 0.1013 0.4 11.2 4U 1735-44
268.3608 -1.4534 14.6 27.6 15.6 0.2330 0.8 0.4 SW J1753.5-0127
270.2438 -25.2333 5.3 5.1 55.1 0.5230 2.2 9.5 GX 5-1
270.5027 -25.8548 0.0 4.8 62.2 0.1362 0.6 12.7 GRS 1758-258
274.1728 -14.0741 4.1 16.5 38.9 0.7392 2.8 10.0 GX 17+2
276.0104 -30.2937 3.1 8.5 112.7 -1.0419 -3.7 6.2 H1820-303
285.0641 -24.9155 197.7 17.1 92.1 0.0179 0.1 1.6 HT1900.1-2455
288.8775 10.9950 3.7 45.5 43.1 2.1433 3.1 5.5 GRS 1915+105
262.9085 -33.9974 9.8 5.8 -139.4 0.2860 1.2 10.6 GX 354-0
327.8155 -55.3580 3.1 50.5 151.0 3.9773 3.7 ------ UNKNOWN
247.8818 -48.8109 2.1 24.4 -138.3 1.5525 5.5 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.300000 6.664000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.1306 -15.7155 7.1 23.6 -49.2 0.0676 1.6 9.8 Sco X-1
255.7789 -37.7098 0.0 12.4 -126.2 0.0540 1.6 12.7 4U 1700-377
256.2638 -36.5314 4.4 11.4 -123.1 0.0863 2.6 10.5 GX 349+2
263.0818 -24.8862 4.6 5.0 -25.1 -0.0843 -2.5 9.3 GX 1+4
264.6091 -44.4885 27.8 15.6 -164.1 -0.0144 -0.4 6.2 4U 1735-44
268.2651 -1.5980 7.5 27.4 15.4 0.0596 1.5 10.7 SW J1753.5-0127
270.4515 -25.0754 3.3 5.3 55.5 -0.1245 -3.5 9.1 GX 5-1
270.4831 -25.7799 7.3 4.8 61.4 0.0569 1.6 10.0 GRS 1758-258
273.9715 -13.9161 6.5 16.6 38.0 -0.0617 -1.8 7.5 GX 17+2
275.7374 -30.3449 13.6 8.3 113.3 0.0289 0.8 9.8 H1820-303
285.0317 -24.9057 25.2 17.1 92.0 0.0165 0.5 0.9 HT1900.1-2455
288.7757 10.8118 7.1 45.3 43.1 0.1922 1.6 8.1 GRS 1915+105
262.8400 -33.9993 4.1 5.9 -138.9 0.0893 2.8 12.4 GX 354-0
305.1479 -28.0035 2.3 34.0 109.3 0.3448 5.0 ------ UNKNOWN
261.7225 -23.2284 2.3 7.1 -25.8 0.1574 5.1 ------ UNKNOWN
260.8538 -26.0236 1.1 5.7 -49.0 0.3634 10.8 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
833.860600 962.600000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
328.3978 -64.7740 2.8 37.7 -1.1 1.0020 4.1 ------ UNKNOWN
15.5223 3.1214 3.4 38.7 -170.8 0.8619 3.4 ------ UNKNOWN
33.1389 7.8074 2.0 52.1 -153.5 2.8290 5.7 ------ UNKNOWN
44.2728 -63.2432 2.9 43.2 -49.5 1.9481 3.9 ------ UNKNOWN
51.2437 -55.8244 2.8 44.4 -61.2 3.7050 4.1 ------ UNKNOWN
46.4872 -34.7707 3.3 40.9 -92.4 3.0329 3.5 ------ UNKNOWN
Plot creation:
Wed Jun 14 14:02:50 EDT 2023