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
254.8555 -33.5839 0.0069 12.4796 43.2906 1.4608527 27.740 TRIG_01116441
Foreground time interval of the image:
-0.148 17.621 (delta_t = 17.769 [sec])
Background time interval of the image:
-239.680 -0.148 (delta_t = 239.532 [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 -0.148 sec. to 42.172 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.35819 ( -0.112874 0.112224 )
Norm@50keV : 2.89411E-03 ( -0.000183883 0.000183725 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 73.48 using 59 bins.
Reduced chi-squared = 1.28912
# Null hypothesis probability of 6.99e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 42.32 sec: 0.349258 ( -0.022958 0.023 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.19417e-06 ( -8.34203e-08 8.39629e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.148 sec. to 42.172 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00543 ( -0.502506 0.399018 )
Epeak [keV] : 142.557 ( -56.5442 -142.59 )
Norm@50keV : 4.34349E-03 ( -0.00154324 0.00328875 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 71.69 using 59 bins.
Reduced chi-squared = 1.28018
# Null hypothesis probability of 7.72e-02 with 56 degrees of freedom
Photon flux (15-150 keV) in 42.32 sec: 0.343260 ( -0.024239 0.024207 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.15847e-06 ( -9.64202e-08 9.54071e-08 ) ergs/cm2
Band function
Time interval is from -0.148 sec. to 42.172 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] : 15.8184 (-1.26888 1.4257)
R^2/D10^2 : 3.35343E-02 (-0.00870717 0.0114256)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 112.55 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.63e-05 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.361e-08 1.003e-08
25- 50 3.067e-07 2.516e-08
50-150 5.340e-07 5.861e-08
15-150 9.144e-07 7.512e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-21.3445 -200)
Norm : 1.45116 (-0.0922283 0.0922283)
------------------------------------------------------------
#Fit statistic : Chi-Squared 79.47 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.62e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.529e-07 1.208e-08
25- 50 2.942e-07 2.903e-08
50-150 6.451e-07 1.767e-07
15-150 1.092e-06 1.856e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 10.6564 (-2.03462 1.71314)
R1^2/D10^2 : 0.102613 (-0.0383943 0.0564768)
kT2 [keV] : 61.4508 (-29.5872 -61.8129)
R2^2/D10^2 : 3.56210E-04 (-0.00029548 0.00186648)
------------------------------------------------------------
#Fit statistic : Chi-Squared 66.79 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.32e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.076e-07 2.270e-08
25- 50 3.173e-07 6.409e-08
50-150 7.549e-07 3.433e-07
15-150 1.180e-06 4.075e-07
Peak spectrum fit
Power-law model
Time interval is from -0.076 sec. to 0.924 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.784164 ( -0.247507 0.232793 )
Norm@50keV : 1.13267E-02 ( -0.00143159 0.00139265 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.01 using 59 bins.
Reduced chi-squared = 0.894912
# Null hypothesis probability of 6.98e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.30259 ( -0.15688 0.15738 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.33266e-07 ( -1.66414e-08 1.67128e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.076 sec. to 0.924 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.777649 ( -0.266654 0.219368 )
Epeak [keV] : 1.00000E+04 ( -10000 -10000 )
Norm@50keV : 1.14089E-02 ( -0.00143673 0.00130069 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.07 using 59 bins.
Reduced chi-squared = 0.911964
# Null hypothesis probability of 6.61e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 1.30244 ( -0.15717 0.15705 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.3314e-07 ( -1.65906e-08 1.6756e-08 ) ergs/cm2
Band function
Time interval is from -0.076 sec. to 0.924 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] : 30.0292 (-6.00766 9.00526)
R^2/D10^2 : 1.87825E-02 (-0.0186524 0.0168325)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 72.77 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.77e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.648e-09 7.280e-10
25- 50 1.634e-08 3.885e-09
50-150 1.041e-07 2.237e-08
15-150 1.231e-07 2.407e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 (-23.5682 -200)
Norm : 5.24620 (-0.649586 0.649586)
------------------------------------------------------------
#Fit statistic : Chi-Squared 82.66 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.48e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.307e-08 7.310e-09
25- 50 2.513e-08 1.385e-08
50-150 5.512e-08 3.019e-08
15-150 9.333e-08 5.155e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 9.49659 (-3.70413 4.8222)
R1^2/D10^2 : 0.414136 (-0.265259 1.79003)
kT2 [keV] : 93.7553 (-52.4224 -94.3007)
R2^2/D10^2 : 1.17546E-03 (-0.0010044 0.00581585)
------------------------------------------------------------
#Fit statistic : Chi-Squared 47.91 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.40e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.124e-09 4.588e-09
25- 50 2.254e-08 1.190e-08
50-150 1.093e-07 1.050e-07
15-150 1.399e-07 1.128e-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: 1.30776 ( -0.105411 0.104654 )
Norm@50keV : 5.27821E-03 ( -0.000298239 0.000298206 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 55.42 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.34e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 17.77 sec: 0.630612 ( -0.0373246 0.0374311 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.25112e-07 ( -5.77701e-08 5.80372e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.30944 ( -0.109746 0.102007 )
Epeak [keV] : 9999.33 ( -9999.36 -9999.36 )
Norm@50keV : 5.28989E-03 ( -0.000295604 0.00192889 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 55.45 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 4.96e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 17.77 sec: 0.630846 ( -0.037802 0.036943 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.24641e-07 ( -5.76903e-08 5.77792e-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) = 2.75e-07
S(50-100 keV) = 4.27e-07
T90 vs. Hardness ratio plot
T90 = 40.4079998731613 sec.
Hardness ratio (energy fluence ratio) = 1.55273
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.48641
Count Ratio (50-100 keV) / (15-25 keV) = 1.11364
Mask shadow pattern
IMX = 1.610963696020557E-01, IMY = -1.517595504118485E-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:
-239.680000 -0.148000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
186.7250 -62.8581 5.9 39.4 -108.2 2.2779 2.0 5.6 GX 301-2
245.0059 -15.6279 0.8 30.7 18.4 7.1493 14.7 1.7 Sco X-1
256.0113 -37.7973 2.5 8.6 54.3 1.6148 4.6 3.0 4U 1700-377
256.3864 -36.6283 0.0 9.8 53.6 1.2257 3.6 12.5 GX 349+2
262.8340 -24.7265 5.8 22.9 57.9 -0.8454 -2.0 9.6 GX 1+4
264.4868 -44.4368 8.2 9.1 116.9 0.4999 1.4 11.0 4U 1735-44
270.2825 -25.1113 2.8 25.5 73.2 2.0132 4.2 1.9 GX 5-1
270.1999 -25.6996 5.7 25.0 73.7 0.9479 2.1 6.1 GRS 1758-258
274.0719 -13.9620 5.8 37.0 69.0 2.3183 2.0 5.9 GX 17+2
275.9198 -30.5700 0.0 24.2 90.5 0.4619 0.9 12.2 H1820-303
285.0091 -24.7675 88.1 34.0 94.3 0.1035 0.1 9.3 HT1900.1-2455
263.0591 -33.9224 9.7 14.7 71.1 0.4516 1.2 6.3 GX 354-0
314.5761 -44.9886 2.4 42.9 143.7 4.8907 4.8 ------ UNKNOWN
310.4916 -46.9959 2.8 39.5 144.9 3.4120 4.1 ------ UNKNOWN
259.2064 -35.1361 2.9 12.1 61.7 1.2447 4.0 ------ UNKNOWN
352.4228 -58.9172 2.7 56.8 173.9 5.8523 4.3 ------ UNKNOWN
227.3472 -16.8322 3.8 35.4 -11.8 1.3284 3.1 ------ UNKNOWN
228.0115 -29.2648 3.0 24.9 -25.3 1.4106 3.8 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.148000 17.620640
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
186.6204 -62.6246 9.6 39.5 -107.8 0.1941 1.2 8.8 GX 301-2
245.0753 -15.5385 5.9 30.8 18.6 -0.1306 -2.0 8.2 Sco X-1
256.0599 -37.8224 4.5 8.6 54.6 -0.1375 -2.6 3.7 4U 1700-377
256.4842 -36.2179 0.0 10.3 53.2 0.0916 1.7 12.5 GX 349+2
263.0163 -24.7398 6.7 23.0 58.3 -0.1141 -1.7 0.5 GX 1+4
264.7677 -44.2389 0.0 9.3 116.0 -0.0874 -1.7 12.7 4U 1735-44
270.5137 -25.0809 0.0 25.6 73.5 -0.0632 -0.8 12.5 GX 5-1
270.2267 -25.7628 8.0 24.9 73.9 0.1138 1.4 4.3 GRS 1758-258
273.9051 -14.0737 9.5 36.8 68.8 -0.1721 -1.2 6.3 GX 17+2
275.9061 -30.2349 17.6 24.4 89.9 -0.0485 -0.7 8.0 H1820-303
285.0420 -24.8929 13.3 33.9 94.5 0.0988 0.9 1.7 HT1900.1-2455
262.8212 -33.7586 4.7 14.7 70.1 0.1467 2.4 9.5 GX 354-0
254.8555 -33.5839 0.4 12.5 43.3 1.4609 27.8 ------ UNKNOWN
203.6501 -13.9711 2.1 51.3 -36.5 1.0366 5.6 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
80.020600 962.383100
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
186.5747 -62.6171 50.1 50.8 -138.1 1.2569 0.2 9.5 GX 301-2
244.9898 -15.6547 0.5 20.0 -20.5 27.4449 21.6 1.1 Sco X-1
255.9910 -37.8452 0.6 4.4 177.0 21.3238 18.0 0.2 4U 1700-377
256.4384 -36.4334 4.9 3.1 165.0 2.8033 2.3 0.6 GX 349+2
262.8656 -24.8433 7.2 11.2 49.0 1.9210 1.6 9.8 GX 1+4
264.6244 -44.3182 16.7 13.1 156.2 0.8627 0.7 9.4 4U 1735-44
268.5075 -1.4552 5.8 34.6 32.9 -4.1900 -2.0 8.4 SW J1753.5-0127
270.0792 -24.9795 0.0 15.8 69.4 -1.3937 -1.0 12.6 GX 5-1
270.0964 -25.6438 0.0 15.4 71.4 -1.9081 -1.3 12.6 GRS 1758-258
274.0414 -13.9252 4.4 26.2 54.5 4.7754 2.6 7.0 GX 17+2
276.0541 -30.4783 5.6 18.2 94.4 2.9976 2.0 9.4 H1820-303
285.1893 -24.8641 5.3 27.7 88.2 -4.3864 -2.2 9.0 HT1900.1-2455
263.1402 -33.7115 7.1 6.9 101.8 1.8963 1.6 10.6 GX 354-0
255.4341 20.6696 2.5 54.3 9.1 12.9573 4.6 ------ UNKNOWN
250.5265 21.0413 2.6 54.8 3.4 12.1996 4.5 ------ UNKNOWN
243.3861 0.0031 4.0 35.3 -11.8 4.6793 2.9 ------ UNKNOWN
229.0279 17.9524 2.1 57.1 -21.2 23.4173 5.5 ------ UNKNOWN
163.1085 -77.3110 3.3 57.7 -156.5 27.8925 3.5 ------ UNKNOWN
219.8927 -2.7777 3.7 44.9 -45.8 10.6012 3.1 ------ UNKNOWN
Plot creation:
Wed Jun 14 14:03:26 EDT 2023