Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
244.9414 -15.7340 0.0356 23.8 117.6 2.7079 5.4 TRIG_01035744
------------------------------------------
Foreground time interval of the image:
382.136 683.980 (delta_t = 301.844 [sec])
685.000 745.790 (delta_t = 60.790 [sec])
747.000 761.680 (delta_t = 14.680 [sec])
763.000 807.720 (delta_t = 44.720 [sec])
809.000 822.190 (delta_t = 13.190 [sec])
823.000 833.001 (delta_t = 10.001 [sec])
Background time interval of the image:
-208.599 382.136 (delta_t = 590.735 [sec])
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) 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.
- 5) 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.
- 6) 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 64.000000
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 64.000000
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 64.000000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of 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.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Multiple GTIs in the spectrum
tstart tstop
382.136000 683.980000
685.000000 745.790000
747.000000 761.680000
763.000000 807.720000
809.000000 822.190000
823.000000 888.030000
889.000000 894.230000
895.000000 952.864000
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 5.87043 ( -0.270433 0.270462 )
Norm@50keV : 1.52847E-04 ( -3.16695e-05 3.80249e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.29 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.25e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 563.3 sec: 0.552487 ( -0.0432616 0.0438034 ) ph/cm2/s
Energy fluence (15-150 keV) : 9.40948e-06 ( -6.59112e-07 6.66412e-07 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
382.136000 683.980000
685.000000 745.790000
747.000000 761.680000
763.000000 807.720000
809.000000 822.190000
823.000000 888.030000
889.000000 894.230000
895.000000 952.864000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.51346 ( )
Epeak [keV] : 2.46403 ( )
Norm@50keV : 0.463618 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 53.77 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.60e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 563.3 sec: 0.525610 ( -0.050675 0.049489 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.89377e-06 ( -7.8141e-07 7.63103e-07 ) ergs/cm2
Band function
Multiple GTIs in the spectrum
tstart tstop
382.136000 683.980000
685.000000 745.790000
747.000000 761.680000
763.000000 807.720000
809.000000 822.190000
823.000000 888.030000
889.000000 894.230000
895.000000 952.864000
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -6.54338 ( 4.16871 6.54338 )
beta : -5.89337 ( -0.254677 0.287678 )
Epeak [keV] : 287.446 ( -287.446 -287.446 )
Norm@50keV : 2.03599E-02 ( -0.00409383 0.00539075 )
------------------------------------------------------------
Photon flux (15-150 keV) in 563.3 sec: 0.391029 ( ) 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] : 2.80338 (-0.140926 0.154922)
R^2/D10^2 : 112.128 (-39.2243 59.023)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 56.10 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.09e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.654e-06 1.011e-06
25- 50 8.750e-07 1.146e-07
50-150 7.970e-10 3.678e-10
15-150 8.529e-06 9.632e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 4.97050 (-0.36608 0.419704)
Norm : 124.436 (-36.953 52)
------------------------------------------------------------
#Fit statistic : Chi-Squared 53.74 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.98e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.926e-06 8.450e-07
25- 50 9.884e-07 1.301e-07
50-150 4.972e-09 2.288e-09
15-150 8.919e-06 9.632e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.71946 (-0.171198 0.167209)
R1^2/D10^2 : 139.373 (-52.5147 92.0055)
kT2 [keV] : 17.6885 (-9.51156 41.7318)
R2^2/D10^2 : 1.27737E-03 (-0.00125695 0.023927)
------------------------------------------------------------
#Fit statistic : Chi-Squared 46.89 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 7.73e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.813e-06 1.065e-06
25- 50 9.998e-07 1.780e-07
50-150 4.682e-07 3.279e-07
15-150 9.281e-06 1.186e-06
Peak spectrum fit
Power-law model
Time interval is from 765.224 sec. to 766.224 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.83453 ( -1.2189 1.7664 )
Norm@50keV : 1.82582E-03 ( -0.00151455 0.00307571 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 71.60 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 9.23e-02 with 57 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.974707 ( -0.2639 0.257808 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.55994e-08 ( -1.2885e-08 1.71474e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 765.224 sec. to 766.224 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.94683 ( )
Epeak [keV] : 0.508180 ( )
Norm@50keV : 8.61381E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 74.28 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.15e-02 with 56 degrees of freedom
Photon flux (15-150 keV) in 1 sec: 0.970405 ( -0.26063 0.261305 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.60001e-08 ( 0 0 ) ergs/cm2
Band function
Time interval is from 765.224 sec. to 766.224 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -2.15081 ( 2.14822 2.14822 )
beta : -3.86926 ( -1.754 1.23377 )
Epeak [keV] : 41.5913 ( -41.5913 -41.5913 )
Norm@50keV : 3.23132 ( -3.1954 136.375 )
------------------------------------------------------------
Photon flux (15-150 keV) in 1 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] : 2.74510 (-0.656496 0.891344)
R^2/D10^2 : 220.354 (-220.354 1294.43)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 74.33 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.14e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.322e-08 1.354e-08
25- 50 2.456e-09 1.568e-09
50-150 1.859e-12 2.166e-12
15-150 2.568e-08 1.452e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 5.81656 (-2.20787 7.16704)
Norm : 120.635 (-120.689 547.934)
------------------------------------------------------------
#Fit statistic : Chi-Squared 74.08 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.37e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.281e-08 1.281e-08
25- 50 3.987e-09 2.674e-09
50-150 4.205e-11 4.939e-11
15-150 2.684e-08 1.510e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 2.41488 (-0.652295 0.784535)
R1^2/D10^2 : 474.795 (-396.651 4846.87)
kT2 [keV] : 18.1937 (-7.66021 22.8558)
R2^2/D10^2 : 2.74654E-02 (-0.0254902 0.103714)
------------------------------------------------------------
#Fit statistic : Chi-Squared 63.71 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 1.97e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.199e-08 1.236e-08
25- 50 9.743e-09 5.890e-09
50-150 2.037e-08 1.445e-08
15-150 5.210e-08 2.761e-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: 5.74160 ( -0.273305 0.273101 )
Norm@50keV : 1.84632E-04 ( -3.82012e-05 4.58846e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 53.92 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 5.91e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 445.2 sec: 0.586978 ( -0.0462315 0.0468962 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.95657e-06 ( -5.55009e-07 5.62158e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.78224 ( )
Epeak [keV] : 1.22690 ( )
Norm@50keV : 0.257141 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared 51.08 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 6.61e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 445.2 sec: 0.566116 ( -0.053209 0.051991 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.61942e-06 ( -6.56893e-07 6.43982e-07 ) ergs/cm2
Band function
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.391255 ( -7.62391 4.61166 )
beta : -6.36473 ( -2.29549 0.595805 )
Epeak [keV] : 6.35863 ( -1.33282 1.10849 )
Norm@50keV : 4.24899 ( -2.6475 60507 )
------------------------------------------------------------
Photon flux (15-150 keV) in 445.2 sec: 0.480006 ( ) 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) = 1.21e-06
S(50-100 keV) = 8.30e-08
T90 vs. Hardness ratio plot
T90 = 448.94000005722 sec.
Hardness ratio (energy fluence ratio) = 0.068595
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.108429
Count Ratio (50-100 keV) / (15-25 keV) = 0.0172828
Mask shadow pattern
IMX = -2.041979380236950E-01, IMY = -3.913246388335264E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
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:
-208.599400 382.136000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8846 -15.7552 0.4 23.8 117.4 30.6480 26.4 8.8 Sco X-1
256.0641 -37.7222 5.2 12.3 40.4 1.7293 2.2 8.2 4U 1700-377
256.2391 -36.4962 7.4 11.4 44.5 1.1937 1.5 10.4 GX 349+2
262.8361 -24.8658 4.1 5.2 139.8 1.9514 2.8 11.9 GX 1+4
264.8944 -44.4183 7.1 15.5 2.4 -1.3050 -1.6 6.8 4U 1735-44
268.2782 -1.4866 6.8 27.6 -177.6 -1.4877 -1.7 5.8 SW J1753.5-0127
270.1784 -25.2213 5.1 5.0 -139.3 1.5559 2.3 10.3 GX 5-1
270.1625 -25.8424 2.5 4.6 -134.3 3.4562 5.0 9.6 GRS 1758-258
273.9677 -13.9909 6.6 16.6 -155.1 1.2684 1.7 3.5 GX 17+2
275.8221 -30.5205 13.5 8.3 -78.8 0.6211 0.9 10.6 H1820-303
285.0660 -25.0122 6.9 17.1 -100.8 -1.3297 -1.7 5.7 HT1900.1-2455
288.6856 10.8972 7.1 45.3 -150.1 2.6597 1.6 7.2 GRS 1915+105
262.8854 -33.8068 10.7 5.7 29.6 -0.8603 -1.1 5.4 GX 354-0
226.2352 -11.7524 2.8 41.2 104.6 9.9547 4.1 ------ UNKNOWN
237.1151 6.7239 2.2 45.5 135.4 14.7163 5.1 ------ UNKNOWN
206.2049 -77.7339 3.9 55.5 11.3 11.6947 3.0 ------ UNKNOWN
257.3173 15.8406 2.9 45.7 166.1 7.0807 4.0 ------ UNKNOWN
255.5728 -48.8878 1.0 21.6 18.0 9.0894 11.2 ------ UNKNOWN
280.6864 -3.8196 3.0 28.6 -150.7 3.2177 3.8 ------ UNKNOWN
284.5951 -13.9001 2.7 22.6 -129.7 3.7245 4.2 ------ UNKNOWN
346.1708 -75.8916 3.9 59.5 -17.8 12.9362 3.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
382.136000 683.980000
685.000000 745.790000
747.000000 761.680000
763.000000 807.720000
809.000000 822.190000
823.000000 833.000620
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9433 -15.7235 2.3 23.8 117.6 2.5558 5.0 5.4 Sco X-1
255.8983 -37.9842 2.0 12.5 39.9 2.1518 5.6 9.4 4U 1700-377
256.6050 -36.4311 4.8 11.1 43.8 0.9065 2.4 8.2 GX 349+2
262.8491 -24.6673 3.7 5.4 141.2 -1.1583 -3.1 9.9 GX 1+4
264.8110 -44.3778 5.0 15.4 2.7 0.8375 2.3 5.2 4U 1735-44
268.2522 -1.4861 4.5 27.6 -177.7 -1.1204 -2.6 7.2 SW J1753.5-0127
270.2920 -25.0956 8.5 5.2 -139.3 -0.5008 -1.4 1.1 GX 5-1
270.4564 -25.8926 7.1 4.7 -131.7 0.6118 1.6 12.2 GRS 1758-258
274.0889 -14.1401 3.5 16.5 -154.5 1.2388 3.3 7.9 GX 17+2
275.7514 -30.3740 3.4 8.2 -79.7 -1.2261 -3.4 9.0 H1820-303
285.0529 -24.8986 18.1 17.1 -101.1 -0.2513 -0.6 1.6 HT1900.1-2455
288.7392 10.9203 7.8 45.4 -150.1 1.0563 1.5 3.8 GRS 1915+105
263.0644 -33.9887 5.8 5.8 27.3 -0.7473 -2.0 10.0 GX 354-0
229.5430 -56.2199 2.1 37.6 31.5 3.9617 5.6 ------ UNKNOWN
274.2154 -26.1338 2.2 7.5 -112.3 1.8138 5.2 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
869.200630 888.030000
889.000000 894.230000
895.000000 956.820000
958.000000 963.132200
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9793 -15.6454 0.6 26.9 100.2 5.6040 20.9 0.3 Sco X-1
254.4564 35.2666 7.0 56.0 171.3 1.4937 1.6 4.6 Her X-1
256.0087 -37.8386 2.3 24.8 42.9 1.0578 5.0 1.1 4U 1700-377
256.2538 -36.3962 10.5 23.6 44.9 0.2326 1.1 8.9 GX 349+2
262.9602 -24.7113 4.3 11.5 61.9 0.4106 2.7 3.4 GX 1+4
264.5346 -44.3604 6.9 27.4 22.8 0.3297 1.7 10.4 4U 1735-44
268.3404 -1.3052 5.4 17.3 173.6 0.3483 2.1 9.0 SW J1753.5-0127
270.2158 -25.0240 7.8 7.5 29.2 0.2618 1.5 5.0 GX 5-1
270.4015 -25.7674 4.5 8.2 26.2 0.4586 2.6 5.5 GRS 1758-258
273.9108 -13.9881 4.3 4.0 -158.0 0.3927 2.7 6.2 GX 17+2
276.0593 -30.1922 0.0 12.6 -2.7 0.2932 1.5 12.6 H1820-303
284.9150 -25.1021 0.0 13.2 -45.5 0.0209 0.1 12.7 HT1900.1-2455
288.8625 11.0936 37.8 33.0 -141.0 -0.0730 -0.3 9.7 GRS 1915+105
263.0319 -33.9720 11.3 18.3 36.7 -0.1834 -1.0 8.5 GX 354-0
255.5437 -48.7142 2.4 33.9 30.3 1.3259 4.9 ------ UNKNOWN
316.9734 -70.3380 3.5 58.6 -6.4 3.8879 3.3 ------ UNKNOWN
283.7672 -16.6543 2.2 10.3 -86.0 0.8598 5.3 ------ UNKNOWN
293.0522 30.9575 2.9 52.6 -148.8 2.0685 4.0 ------ UNKNOWN
Plot creation:
Sat Mar 6 04:11:10 EST 2021