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
296.5992 -39.4013 0.0045 14.7145 83.8958 2.6703249 42.786 TRIG_01042398
Foreground time interval of the image:
-0.448 11.597 (delta_t = 12.045 [sec])
Background time interval of the image:
-145.803 -0.448 (delta_t = 145.355 [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 0.256000
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 0.256000
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 0.256000
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 -0.448 sec. to 14.440 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.61464 ( -0.0907473 0.0928269 )
Norm@50keV : 8.45571E-03 ( -0.000496315 0.000493648 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 73.23 using 59 bins.
Reduced chi-squared = 1.28474
# Null hypothesis probability of 7.25e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 14.89 sec: 1.78525 ( -0.07893 0.07927 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.30225e-06 ( -5.57441e-08 5.59833e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.448 sec. to 14.440 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.61872 ( -0.503209 0.453431 )
Epeak [keV] : 14.3636 ( -13.4918 8.01361 )
Norm@50keV : 3.36059E-02 ( -0.0143037 0.0341496 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 56.45 using 59 bins.
Reduced chi-squared = 1.00804
# Null hypothesis probability of 4.58e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 14.89 sec: 1.68491 ( -0.0887 0.08896 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.18463e-06 ( -6.74253e-08 7.00789e-08 ) ergs/cm2
Band function
Time interval is from -0.448 sec. to 14.440 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] : 7.72084 ( )
R^2/D10^2 : 2.02659 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 124.04 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.02e-07 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.164e-07 2.293e-08
25- 50 5.202e-07 2.435e-08
50-150 1.213e-07 1.730e-08
15-150 9.579e-07 4.221e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 30.7570 (-2.7997 3.18804)
Norm : 13.4355 (-1.31912 1.48903)
------------------------------------------------------------
#Fit statistic : Chi-Squared 57.13 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.70e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.123e-07 2.539e-08
25- 50 4.776e-07 1.943e-08
50-150 2.702e-07 3.447e-08
15-150 1.160e-06 5.271e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.17687 (-0.67292 0.666492)
R1^2/D10^2 : 8.55659 (-3.17205 6.22978)
kT2 [keV] : 14.2204 (-2.31663 3.38617)
R2^2/D10^2 : 8.84157E-02 (-0.0558896 0.123407)
------------------------------------------------------------
#Fit statistic : Chi-Squared 53.33 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.39e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.115e-07 6.559e-08
25- 50 4.647e-07 7.467e-08
50-150 2.967e-07 1.127e-07
15-150 1.173e-06 2.169e-07
Peak spectrum fit
Power-law model
Time interval is from 3.868 sec. to 4.868 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.21733 ( -0.107825 0.111359 )
Norm@50keV : 2.84293E-02 ( -0.00216059 0.002137 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 87.45 using 59 bins.
Reduced chi-squared = 1.53421
# Null hypothesis probability of 5.86e-03 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 4.75037 ( -0.29169 0.29195 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.68022e-07 ( -1.78838e-08 1.80135e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 3.868 sec. to 4.868 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.04672 ( -0.635506 0.549181 )
Epeak [keV] : 32.6366 ( -7.91486 4.83152 )
Norm@50keV : 0.139500 ( -0.0729389 0.19537 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 72.16 using 59 bins.
Reduced chi-squared = 1.28857
# Null hypothesis probability of 7.18e-02 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 4.57746 ( -0.3009 0.30132 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.44861e-07 ( -1.93073e-08 1.99646e-08 ) ergs/cm2
Band function
Time interval is from 3.868 sec. to 4.868 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] : 8.97383 (-0.57414 0.614969)
R^2/D10^2 : 3.34237 (-0.790955 1.02887)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 103.76 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.53e-04 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.233e-08 5.410e-09
25- 50 1.107e-07 7.250e-09
50-150 4.186e-08 7.170e-09
15-150 2.049e-07 1.345e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 47.6539 (-6.58235 8.38869)
Norm : 27.7828 (-2.97001 3.34759)
------------------------------------------------------------
#Fit statistic : Chi-Squared 72.67 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.89e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.715e-08 5.435e-09
25- 50 9.477e-08 5.930e-09
50-150 8.787e-08 1.392e-08
15-150 2.498e-07 1.715e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.79214 (-1.60001 1.51262)
R1^2/D10^2 : 12.2001 (-3.404 6.81847)
kT2 [keV] : 14.8994 (-4.60064 9.66268)
R2^2/D10^2 : 0.248469 (-0.0713907 0.209914)
------------------------------------------------------------
#Fit statistic : Chi-Squared 70.76 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.47e-02 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.317e-08 2.646e-08
25- 50 9.326e-08 3.764e-08
50-150 7.252e-08 3.984e-08
15-150 2.289e-07 1.006e-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: 2.55849 ( -0.0923323 0.0945267 )
Norm@50keV : 9.12009E-03 ( -0.000549692 0.00054654 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 63.54 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.57e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 12.04 sec: 1.85778 ( -0.0844385 0.0847422 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.11621e-06 ( -5.02911e-08 5.05274e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.49721 ( -0.518996 0.458876 )
Epeak [keV] : 17.9156 ( -14.981 6.87863 )
Norm@50keV : 3.94849E-02 ( -0.018364 0.0417051 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 45.43 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 8.43e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 12.04 sec: 1.75025 ( -0.09401 0.09438 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.01079e-06 ( -5.94848e-08 6.20481e-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) = 4.36e-07
S(50-100 keV) = 2.84e-07
T90 vs. Hardness ratio plot
T90 = 12.7999999523163 sec.
Hardness ratio (energy fluence ratio) = 0.651376
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.784672
Count Ratio (50-100 keV) / (15-25 keV) = 0.227275
Mask shadow pattern
IMX = 2.792549792731256E-02, IMY = -2.611258187836020E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000
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:
-145.803400 -0.448000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
264.7985 -44.5838 5.0 38.7 79.1 1.4220 2.3 8.4 4U 1735-44
270.1625 -25.1094 22.7 38.7 111.3 0.3169 0.5 6.9 GX 5-1
270.1984 -25.6869 16.4 38.4 110.5 0.4159 0.7 6.6 GRS 1758-258
274.0814 -14.1300 6.4 41.0 129.0 1.1282 1.8 7.1 GX 17+2
275.9298 -30.3682 20.9 32.1 105.9 0.1809 0.6 0.3 H1820-303
285.1929 -24.8435 4.5 26.5 122.7 0.6721 2.6 9.7 HT1900.1-2455
288.9056 10.8947 8.3 50.9 167.6 -0.9036 -1.4 7.0 GRS 1915+105
286.2300 -15.8953 2.7 30.8 139.3 1.0860 4.2 ------ UNKNOWN
338.2790 0.2707 2.2 41.4 -121.4 2.4352 5.3 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.448000 11.596600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
264.8125 -44.4430 6.4 38.7 79.3 -0.3943 -1.8 3.0 4U 1735-44
270.1039 -25.2085 0.0 38.7 111.1 -0.1115 -0.6 12.5 GX 5-1
270.2611 -25.6817 7.8 38.4 110.5 0.2738 1.5 4.3 GRS 1758-258
274.0243 -13.9064 48.5 41.2 129.3 -0.0459 -0.2 7.9 GX 17+2
276.0809 -30.4921 6.0 31.9 105.7 0.1862 1.9 11.0 H1820-303
285.0918 -24.9960 12.5 26.5 122.3 0.0715 0.9 5.5 HT1900.1-2455
288.8907 11.0069 19.8 51.0 167.6 0.1081 0.6 6.6 GRS 1915+105
296.5992 -39.4012 0.3 14.7 83.9 2.6702 42.7 ------ UNKNOWN
294.8363 2.2326 2.6 40.5 169.8 0.3944 4.4 ------ UNKNOWN
304.7438 -17.7536 2.2 18.3 171.2 0.2742 5.2 ------ UNKNOWN
317.3815 -34.9172 2.1 3.0 -54.7 0.2702 5.4 ------ UNKNOWN
7.8418 -60.1729 2.4 43.2 -16.2 0.4362 4.8 ------ UNKNOWN
313.7814 22.1746 2.7 56.3 -160.3 0.8431 4.2 ------ UNKNOWN
5.0241 -27.9441 2.8 43.9 -63.8 0.8745 4.2 ------ UNKNOWN
6.9791 -29.6692 2.5 44.9 -60.7 1.0159 4.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
47.196580 962.775900
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
255.9703 -37.8506 1.1 31.5 90.5 16.5455 10.6 0.9 4U 1700-377
256.4673 -36.4320 5.3 31.5 93.3 3.1131 2.2 1.6 GX 349+2
262.9370 -24.7536 10.3 31.8 118.1 2.1008 1.1 4.0 GX 1+4
264.5627 -44.4526 4.0 24.2 78.3 3.3957 2.9 7.7 4U 1735-44
268.2405 -1.5001 24.4 45.8 149.4 1.4778 0.5 8.2 SW J1753.5-0127
270.2744 -25.1172 6.2 26.3 125.8 2.3172 1.8 2.3 GX 5-1
270.4816 -25.6048 0.0 25.8 125.2 2.3277 1.9 12.8 GRS 1758-258
274.0691 -13.9779 4.0 32.2 146.6 3.6750 2.9 5.1 GX 17+2
275.8840 -30.4194 6.1 19.1 122.4 1.9850 1.9 3.8 H1820-303
284.8678 -24.7896 6.6 17.6 153.3 -1.7213 -1.8 12.1 HT1900.1-2455
288.7159 10.8818 10.2 50.8 -179.2 2.7886 1.1 6.2 GRS 1915+105
262.9207 -33.9618 13.7 27.4 101.6 1.1856 0.8 8.4 GX 354-0
171.3123 -84.0918 2.7 54.2 16.8 19.1635 4.4 ------ UNKNOWN
276.0493 -61.6058 3.7 25.5 33.6 3.2639 3.1 ------ UNKNOWN
325.1363 0.7632 3.0 47.9 -129.1 17.2511 3.9 ------ UNKNOWN
328.5247 -4.4334 3.2 45.3 -121.3 13.0145 3.6 ------ UNKNOWN
Plot creation:
Sat Jul 30 07:06:33 EDT 2022