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
319.8089 34.5475 0.0040 25.0656 -128.0022 6.3443742 48.563 TRIG_01035922
Foreground time interval of the image:
-21.648 12.829 (delta_t = 34.477 [sec])
Background time interval of the image:
-239.072 -21.648 (delta_t = 217.424 [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 -21.648 sec. to 69.864 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.47306 ( -0.0442559 0.0442169 )
Norm@50keV : 8.27817E-03 ( -0.000200673 0.000200672 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 74.04 using 59 bins.
Reduced chi-squared = 1.29895
# Null hypothesis probability of 6.41e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 91.51 sec: 1.02616 ( -0.027324 0.02739 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.22002e-06 ( -1.84138e-07 1.84528e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -21.648 sec. to 69.864 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.912555 ( -0.196832 0.188372 )
Epeak [keV] : 105.273 ( -14.1585 25.9435 )
Norm@50keV : 1.50374E-02 ( -0.00266651 0.00340184 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 46.03 using 59 bins.
Reduced chi-squared = 0.821964
# Null hypothesis probability of 8.27e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 91.51 sec: 0.987958 ( -0.029675 0.029772 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.95759e-06 ( -2.0456e-07 2.04317e-07 ) ergs/cm2
Band function
Time interval is from -21.648 sec. to 69.864 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] : 16.7179 ( )
R^2/D10^2 : 7.88491E-02 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 295.77 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.99e-34 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.126e-07 2.050e-08
25- 50 1.801e-06 5.719e-08
50-150 3.574e-06 1.409e-07
15-150 5.787e-06 1.647e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-6.978 -200)
Norm : 4.24600 (-0.102838 0.102838)
------------------------------------------------------------
#Fit statistic : Chi-Squared 66.65 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.79e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.677e-07 2.562e-08
25- 50 1.862e-06 4.896e-08
50-150 4.083e-06 1.130e-07
15-150 6.912e-06 1.853e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.07190 (-0.817141 0.875032)
R1^2/D10^2 : 0.580590 (-0.156172 0.236326)
kT2 [keV] : 26.9983 (-2.41327 3.22369)
R2^2/D10^2 : 1.15077E-02 (-0.0039701 0.00499283)
------------------------------------------------------------
#Fit statistic : Chi-Squared 43.50 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.68e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.579e-07 6.767e-08
25- 50 1.873e-06 1.080e-07
50-150 4.312e-06 2.883e-07
15-150 6.943e-06 4.443e-07
Peak spectrum fit
Power-law model
Time interval is from 0.260 sec. to 1.260 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.10202 ( -0.125491 0.12377 )
Norm@50keV : 2.89143E-02 ( -0.00216399 0.00216222 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 48.70 using 59 bins.
Reduced chi-squared = 0.854386
# Null hypothesis probability of 7.75e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 3.35453 ( -0.25714 0.25738 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.02141e-07 ( -2.46557e-08 2.47779e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.260 sec. to 1.260 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.741878 ( -0.545989 0.413886 )
Epeak [keV] : 192.357 ( -84.8734 -192.358 )
Norm@50keV : 4.27385E-02 ( -0.015096 0.0330887 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 47.13 using 59 bins.
Reduced chi-squared = 0.841607
# Null hypothesis probability of 7.95e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 3.32156 ( -0.26134 0.26134 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.97208e-07 ( -2.62076e-08 2.59166e-08 ) ergs/cm2
Band function
Time interval is from 0.260 sec. to 1.260 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] : 19.5269 (-1.88296 2.16983)
R^2/D10^2 : 0.174038 (-0.0506761 0.0685789)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 76.33 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.46e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.291e-08 1.900e-09
25- 50 6.329e-08 7.145e-09
50-150 1.782e-07 2.460e-08
15-150 2.545e-07 2.610e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-13.3275 -200)
Norm : 13.7128 (-1.05953 1.05953)
------------------------------------------------------------
#Fit statistic : Chi-Squared 81.84 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.72e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.415e-08 3.200e-09
25- 50 6.570e-08 7.365e-09
50-150 1.441e-07 5.156e-08
15-150 2.439e-07 6.275e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 11.5780 (-3.27293 2.86918)
R1^2/D10^2 : 0.656441 (-0.288691 1.00038)
kT2 [keV] : 54.2772 (-24.1544 -54.742)
R2^2/D10^2 : 5.64696E-03 (-0.00511704 0.0273678)
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.21 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.24e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.024e-08 5.670e-09
25- 50 6.843e-08 2.149e-08
50-150 2.092e-07 1.011e-07
15-150 2.979e-07 1.152e-07
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: 1.25534 ( -0.0475405 0.0473299 )
Norm@50keV : 1.27368E-02 ( -0.000350471 0.0003504 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 92.97 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.85e-03 with 57 degrees of freedom
Photon flux (15-150 keV) in 34.48 sec: 1.50773 ( -0.0440912 0.0441616 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.38899e-06 ( -1.27828e-07 1.27986e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.553218 ( -0.217287 0.206628 )
Epeak [keV] : 114.566 ( -14.7006 24.7595 )
Norm@50keV : 2.66272E-02 ( -0.00506114 0.00657872 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 55.48 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.95e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 34.48 sec: 1.45520 ( -0.04626 0.04633 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.22883e-06 ( -1.38472e-07 1.37817e-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) = 1.77e-06
S(50-100 keV) = 2.53e-06
T90 vs. Hardness ratio plot
T90 = 67.5239999294281 sec.
Hardness ratio (energy fluence ratio) = 1.42938
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.55826
Count Ratio (50-100 keV) / (15-25 keV) = 1.20291
Mask shadow pattern
IMX = -2.879613186281215E-01, IMY = 3.685438577558459E-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:
-239.072000 -21.648000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.4625 35.4708 10.6 31.9 96.2 -0.4631 -1.1 7.7 Her X-1
268.3547 -1.4599 6.5 37.0 24.0 0.7642 1.8 0.9 SW J1753.5-0127
270.3993 -24.9709 26.9 56.9 6.3 0.8075 0.4 9.0 GX 5-1
274.0242 -14.0221 6.9 45.5 7.5 0.7639 1.7 1.4 GX 17+2
285.0432 -24.9195 17.3 53.5 -9.3 0.4622 0.7 0.4 HT1900.1-2455
288.7489 10.9623 12.5 17.5 -8.1 -0.2368 -0.9 3.1 GRS 1915+105
299.6504 35.1979 2.0 9.9 -152.6 1.4300 5.7 3.0 Cyg X-1
308.0548 40.9586 2.1 18.7 -153.4 1.3621 5.4 2.5 Cyg X-3
326.1915 38.4748 5.5 30.7 -134.8 0.7660 2.1 9.2 Cyg X-2
263.8811 5.0005 3.0 34.9 36.9 1.6935 3.9 ------ UNKNOWN
285.1580 -23.9631 3.0 52.6 -9.3 2.4093 3.9 ------ UNKNOWN
3.6211 67.4848 2.5 57.3 -170.6 5.1924 4.6 ------ UNKNOWN
330.2608 49.3133 3.0 36.3 -152.5 1.3233 3.9 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-21.648000 12.828590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.6322 35.4807 60.3 31.7 96.2 0.0415 0.2 11.9 Her X-1
268.4541 -1.3947 5.4 36.9 23.9 -0.3865 -2.1 6.2 SW J1753.5-0127
270.3694 -25.1168 144.2 57.1 6.3 0.0501 0.1 5.2 GX 5-1
273.9014 -14.0018 6.0 45.5 7.6 -0.4210 -1.9 6.4 GX 17+2
284.8840 -25.0171 4.3 53.7 -9.1 -0.8250 -2.7 10.1 HT1900.1-2455
288.8535 10.9805 11.1 17.4 -8.4 0.1081 1.0 3.9 GRS 1915+105
299.5702 35.0477 4.1 9.8 -152.1 0.2989 2.8 9.3 Cyg X-1
307.9915 40.8318 10.9 18.6 -153.2 0.1145 1.1 9.0 Cyg X-3
325.9390 38.2927 0.0 30.5 -134.6 -0.1159 -0.8 11.1 Cyg X-2
246.7400 63.4135 3.4 45.2 137.4 1.6227 3.4 ------ UNKNOWN
319.8089 34.5475 0.2 25.1 -128.0 6.3438 48.6 ------ UNKNOWN
352.1631 40.0258 3.0 50.8 -136.5 1.9210 3.8 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
65.428600 962.982600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
288.7042 10.8817 23.2 36.9 5.2 -0.5325 -0.5 6.7 GRS 1915+105
299.5781 35.1948 2.0 16.5 45.6 5.1238 5.7 0.7 Cyg X-1
308.2107 40.9406 1.6 11.1 75.9 5.8217 7.3 4.6 Cyg X-3
326.2370 38.2947 4.6 6.4 -179.8 1.7998 2.5 3.5 Cyg X-2
310.7873 57.3185 4.0 23.5 115.4 3.3310 2.9 ------ UNKNOWN
338.0413 16.1963 2.8 24.6 -98.6 4.5305 4.0 ------ UNKNOWN
32.2298 31.1611 5.7 59.6 -161.3 19.7812 2.0 ------ UNKNOWN
Plot creation:
Sat Jul 30 07:12:47 EDT 2022