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
270.8042 -29.8473 0.0244 0.4 21.7 3.4180 7.9 TRIG_01046414
------------------------------------------
Foreground time interval of the image:
0.000 384.000 (delta_t = 384.000 [sec])
Background time interval of the image:
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
8 ms binning
From T100_start-3 s to T100_start+3 s
2 ms binning
From T100_start-1 s to T100_start+1 s
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
Time interval is from 0.000 sec. to 384.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.02957 ( -0.213804 0.2267 )
Norm@50keV : 4.82822E-04 ( -7.18002e-05 6.99992e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.77 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.09e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 384 sec: 7.34259E-02 ( -0.00837316 0.00837562 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.71276e-06 ( -2.33444e-07 2.39179e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 384.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.59771 ( -0.914526 0.560999 )
Epeak [keV] : 39.0667 ( -38.3552 -39.0667 )
Norm@50keV : 8.55932E-04 ( -0.000504149 0.00199783 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.87 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.05e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 384 sec: 7.21488E-02 ( -0.0086495 0.0086566 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.63974e-06 ( -2.56451e-07 2.7047e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 384.000 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.70787 ( 1.67588 1.00682 )
beta : -9.37167 ( 9.37167 19.3717 )
Epeak [keV] : 37.9741 ( -23.3635 -41.3114 )
Norm@50keV : 7.40944E-04 ( -0.000277427 0.00152299 )
------------------------------------------------------------
Photon flux (15-150 keV) in 384 sec: 7.27604E-02 ( 6.92724 -0.0104412 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.65504e-06 ( -1.65235e-06 -2.75497e-07 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.93663 (-1.43085 1.68247)
R^2/D10^2 : 3.39546E-02 (-0.0152474 0.0279764)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 80.55 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.17e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.616e-07 5.666e-08
25- 50 6.446e-07 1.031e-07
50-150 3.303e-07 1.050e-07
15-150 1.237e-06 1.899e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 64.2283 (-19.0336 32.7914)
Norm : 0.371728 (-0.0661425 0.0807408)
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.20 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.28e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.624e-07 5.530e-08
25- 50 5.629e-07 7.085e-08
50-150 6.768e-07 2.033e-07
15-150 1.602e-06 2.552e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.71711 (-1.38436 1.69121)
R1^2/D10^2 : 0.426422 (-0.296673 1.57236)
kT2 [keV] : 16.9530 (-3.95175 6.7172)
R2^2/D10^2 : 3.41810E-03 (-0.00252859 0.00672847)
------------------------------------------------------------
#Fit statistic : Chi-Squared 59.64 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.11e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.905e-07 1.962e-07
25- 50 5.163e-07 2.406e-07
50-150 7.013e-07 4.019e-07
15-150 1.608e-06 7.538e-07
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 384.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.02957 ( -0.213804 0.2267 )
Norm@50keV : 4.82822E-04 ( -7.18002e-05 6.99992e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.77 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.09e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 384 sec: 7.34259E-02 ( -0.00837316 0.00837562 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.71276e-06 ( -2.33444e-07 2.39179e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 384.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.59771 ( -0.914526 0.560999 )
Epeak [keV] : 39.0667 ( -36.8972 -39.0667 )
Norm@50keV : 8.55932E-04 ( -0.000504149 0.00199783 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.87 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.05e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 384 sec: 7.21488E-02 ( -0.0086495 0.0086566 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.63974e-06 ( -2.56451e-07 2.7047e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 384.000 sec.
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.70787 ( 1.67588 1.00682 )
beta : -9.37167 ( 9.37167 19.3717 )
Epeak [keV] : 37.9741 ( -23.3635 -41.3114 )
Norm@50keV : 7.40944E-04 ( -0.000277427 0.00152298 )
------------------------------------------------------------
Photon flux (15-150 keV) in 384 sec: 7.27604E-02 ( 6.92724 -0.0104412 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.65504e-06 ( -1.65235e-06 -2.75497e-07 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 9.93663 (-1.43085 1.68247)
R^2/D10^2 : 3.39546E-02 (-0.0152474 0.0279764)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared 80.55 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 2.17e-02 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.616e-07 5.203e-08
25- 50 6.446e-07 9.869e-08
50-150 3.303e-07 1.039e-07
15-150 1.237e-06 1.932e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 64.2283 (-19.0336 32.7914)
Norm : 0.371728 (-0.0661425 0.0807408)
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.20 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.28e-01 with 57 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.624e-07 5.566e-08
25- 50 5.629e-07 6.758e-08
50-150 6.768e-07 2.222e-07
15-150 1.602e-06 2.636e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.71711 (-1.38436 1.69121)
R1^2/D10^2 : 0.426422 (-0.296673 1.57236)
kT2 [keV] : 16.9530 (-3.95175 6.7172)
R2^2/D10^2 : 3.41810E-03 (-0.00252859 0.00672847)
------------------------------------------------------------
#Fit statistic : Chi-Squared 59.64 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.11e-01 with 55 degrees of freedom
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.905e-07 2.021e-07
25- 50 5.163e-07 2.277e-07
50-150 7.013e-07 4.024e-07
15-150 1.608e-06 7.385e-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: 2.02957 ( -0.213804 0.2267 )
Norm@50keV : 4.82822E-04 ( -7.18002e-05 6.99992e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 61.77 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.09e-01 with 57 degrees of freedom
Photon flux (15-150 keV) in 384 sec: 7.34259E-02 ( -0.00837316 0.00837562 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.71276e-06 ( -2.33444e-07 2.39179e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.59771 ( -0.914526 0.560999 )
Epeak [keV] : 39.0667 ( -38.0915 -39.0667 )
Norm@50keV : 8.55932E-04 ( -0.000504149 0.00199783 )
------------------------------------------------------------
#Fit statistic : Chi-Squared 60.87 using 59 bins.
Reduced chi-squared =
# Null hypothesis probability of 3.05e-01 with 56 degrees of freedom
Photon flux (15-150 keV) in 384 sec: 7.21488E-02 ( -0.0086495 0.0086566 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.63974e-06 ( -2.56451e-07 2.7047e-07 ) ergs/cm2
Band function
XSPEC12>exit
XSPEC: quit
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.70787 ( 1.67588 1.00682 )
beta : -9.37167 ( 9.37167 19.3717 )
Epeak [keV] : 37.9741 ( -23.3635 -41.3114 )
Norm@50keV : 7.40944E-04 ( -0.000277427 0.00152299 )
------------------------------------------------------------
Photon flux (15-150 keV) in 384 sec: 7.27604E-02 ( 6.92724 -0.0104412 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.65504e-06 ( -1.65235e-06 -2.75497e-07 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 5.20e-07
S(50-100 keV) = 5.09e-07
T90 vs. Hardness ratio plot
T90 = 384 sec.
Hardness ratio (energy fluence ratio) = 0.978846
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.875723
Count Ratio (50-100 keV) / (15-25 keV) = 0.523146
Mask shadow pattern
IMX = 6.856251758824602E-03, IMY = -2.731092561346585E-03
TIME vs. PHA plot around the trigger time
TIME vs. DetID plot around the trigger time
100 us light curve (15-350 keV)
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:
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 384.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9831 -15.6432 0.5 27.7 96.6 15.1840 23.0 0.3 Sco X-1
255.7762 -37.9256 8.4 15.2 34.8 -0.6734 -1.4 11.1 4U 1700-377
256.5673 -36.5174 3.7 14.0 38.6 1.5707 3.1 8.5 GX 349+2
263.0122 -24.8465 2.5 8.6 103.4 2.0795 4.5 6.1 GX 1+4
264.9183 -44.4880 3.4 15.8 -1.2 1.5861 3.4 7.8 4U 1735-44
268.4974 -1.4929 9.8 28.1 156.8 0.6590 1.2 8.1 SW J1753.5-0127
270.3899 -25.2678 0.0 4.3 153.5 0.6924 1.6 12.7 GX 5-1
270.2856 -25.6788 3.8 3.9 151.3 1.6210 3.8 4.0 GRS 1758-258
273.9408 -14.0010 2.5 15.7 172.5 2.0616 4.6 4.3 GX 17+2
275.8137 -30.4468 3.3 4.2 -93.7 1.3977 3.5 7.5 H1820-303
284.9057 -24.7445 0.0 13.2 -125.7 -0.2848 -0.7 12.7 HT1900.1-2455
288.7521 10.9417 4.7 43.9 -172.3 2.2349 2.5 2.7 GRS 1915+105
262.7684 -33.8920 26.7 8.3 38.5 0.1890 0.4 11.5 GX 354-0
217.2713 -63.4320 2.4 47.9 11.4 4.6413 4.8 ------ UNKNOWN
270.8048 -29.8482 1.5 0.4 21.6 3.4015 7.9 ------ UNKNOWN
197.7892 -83.0986 5.6 58.7 -10.0 6.8994 2.1 ------ UNKNOWN
312.7718 -85.5427 2.2 57.2 -21.2 9.3493 5.3 ------ UNKNOWN
316.0213 -11.6196 3.1 45.3 -121.2 6.3606 3.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
422.100590 963.039200
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9939 -15.6396 0.4 27.6 110.0 24.0046 25.6 0.8 Sco X-1
255.7789 -37.9000 11.8 14.8 47.7 0.6913 1.0 10.4 4U 1700-377
256.6163 -36.4521 4.4 13.5 51.8 1.6947 2.7 8.9 GX 349+2
263.0492 -24.7481 2.1 8.5 119.5 3.2212 5.4 2.2 GX 1+4
264.6385 -44.5113 5.1 15.5 11.3 1.4021 2.3 5.8 4U 1735-44
268.3571 -1.4612 249.4 28.5 169.8 -0.0302 -0.0 0.8 SW J1753.5-0127
270.2896 -24.9290 46.8 4.9 169.9 0.1272 0.2 9.0 GX 5-1
270.4740 -25.6984 11.0 4.1 171.3 0.5553 1.1 9.7 GRS 1758-258
274.0479 -14.0423 2.1 16.1 -173.6 3.3673 5.4 2.5 GX 17+2
275.8393 -30.2139 5.7 4.4 -88.9 1.1802 2.0 10.2 H1820-303
285.0595 -24.7738 5.2 13.7 -113.5 1.3333 2.2 8.9 HT1900.1-2455
288.7580 10.9297 650.4 44.3 -159.5 0.0203 0.0 2.6 GRS 1915+105
263.0087 -33.8523 22.4 7.7 51.3 0.2783 0.5 1.4 GX 354-0
230.9581 -31.7244 2.7 34.1 71.2 5.3519 4.2 ------ UNKNOWN
262.7978 9.0571 2.5 39.6 162.4 4.5479 4.5 ------ UNKNOWN
268.1039 11.4824 2.6 41.4 170.9 4.3815 4.3 ------ UNKNOWN
270.7371 -29.8265 1.5 0.0 69.7 4.5159 7.9 ------ UNKNOWN
304.5982 -37.2241 3.3 29.0 -71.4 2.4690 3.5 ------ UNKNOWN
294.2454 19.6385 2.7 54.4 -157.7 7.6931 4.2 ------ UNKNOWN
333.3140 -56.5922 2.9 50.6 -44.5 11.1485 4.1 ------ UNKNOWN
310.6414 -4.5514 3.3 45.3 -121.2 7.9041 3.4 ------ UNKNOWN
Plot creation:
Mon May 3 17:09:06 EDT 2021