Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte
Image
Pre-slew 15.0-350.0 keV image (Event data)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
293.7630 21.8630 0.0143 27.5464 -86.3202 0.6114071 13.457 TRIG_00701182
Foreground time interval of the image:
-0.004 9.781 (delta_t = 9.785 [sec])
Background time interval of the image:
-107.619 -0.004 (delta_t = 107.615 [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 0.016000
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 0.016000
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 0.016000
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 -0.004 sec. to 800.068 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.38409 ( -3.38409 -3.38409 )
Norm@50keV : 9.65296E-06 ( -9.65298e-06 4.0684e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.94 using 59 PHA bins.
# Reduced chi-squared = 0.8235 for 57 degrees of freedom
# Null hypothesis probability = 8.266567e-01
Photon flux (15-150 keV) in 800.1 sec: 3.55717E-03 ( -0.00355717 0.00450113 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.1341e-07 ( -1.1341e-07 2.57291e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.004 sec. to 800.068 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.73330 ( )
Epeak [keV] : 5.11670 ( )
Norm@50keV : 1.29469E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.97 using 59 PHA bins.
# Reduced chi-squared = 0.8387 for 56 degrees of freedom
# Null hypothesis probability = 7.996511e-01
Photon flux (15-150 keV) in 800.1 sec: 3.58629E-03 ( -0.00358629 0.00446015 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.12729e-07 ( -1.12729e-07 2.5623e-07 ) ergs/cm2
Band function
Time interval is from -0.004 sec. to 800.068 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.67702 ( 1.85176 1.85176 )
beta : -3.38422 ( 9.37167 9.37167 )
Epeak [keV] : 0.893264 ( -2.84515 -2.84515 )
Norm@50keV : 2.99030E-03 ( -0.00299019 94626.2 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.94 using 59 PHA bins.
# Reduced chi-squared = 0.8534 for 55 degrees of freedom
# Null hypothesis probability = 7.720211e-01
Photon flux (15-150 keV) in 800.1 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] : 4.10498 (-4.10498 -4.10498)
R^2/D10^2 : 7.74876E-02 (-0.0774876 -0.0774876)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.06 using 59 PHA bins.
# Reduced chi-squared = 0.8257 for 57 degrees of freedom
# Null hypothesis probability = 8.231913e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.384e-08 4.485e-08
25- 50 2.480e-08 1.785e-08
50-150 3.518e-10 4.157e-10
15-150 8.899e-08 6.529e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 13.5179 (-13.8351 -13.8351)
Norm : 7.18644E-02 (-0.0660436 -0.0660436)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.99 using 59 PHA bins.
# Reduced chi-squared = 0.8243 for 57 degrees of freedom
# Null hypothesis probability = 8.252785e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.095e-08 4.489e-08
25- 50 3.761e-08 3.664e-08
50-150 5.371e-09 7.661e-09
15-150 1.039e-07 8.601e-08
Double BB
# Reduced chi-squared = 0.8417 for 55 degrees of freedom
# Reduced chi-squared = 0.8399 for 55 degrees of freedom
# Reduced chi-squared = 0.8390 for 55 degrees of freedom
# Reduced chi-squared = 0.8387 for 55 degrees of freedom
# Reduced chi-squared = 0.8385 for 55 degrees of freedom
# Null hypothesis probability = 7.732072e-01
# Null hypothesis probability = 7.738764e-01
# Null hypothesis probability = 7.866941e-01
# Null hypothesis probability = 7.922256e-01
# Null hypothesis probability = 7.952769e-01
# Null hypothesis probability = 7.966360e-01
# Null hypothesis probability = 7.972086e-01
# Null hypothesis probability = 7.975208e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 6.044e-08 6.189e-08
25- 50 4.216e-08 6.169e-08
50-150 2.028e-08 1.009e-08
15-150 1.229e-07 9.893e-08
Peak spectrum fit
Power-law model
Time interval is from -0.026 sec. to 0.974 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.75871 ( )
Norm@50keV : 2.64919E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 130.41 using 59 PHA bins.
# Reduced chi-squared = 2.2879 for 57 degrees of freedom
# Null hypothesis probability = 1.112205e-07
Photon flux (15-150 keV) in 1 sec: 6.14936 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 2.87866e-07 ( 0 0 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.026 sec. to 0.974 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -1.07378 ( -1.083 0.920897 )
Epeak [keV] : 27.9274 ( -2.31133 1.80106 )
Norm@50keV : 7.13818 ( -7.32313 28.6451 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.46 using 59 PHA bins.
# Reduced chi-squared = 0.8653 for 56 degrees of freedom
# Null hypothesis probability = 7.528935e-01
Photon flux (15-150 keV) in 1 sec: 5.74970 ( -0.3851 0.38678 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.56328e-07 ( -1.6639e-08 1.6891e-08 ) ergs/cm2
Band function
Time interval is from -0.026 sec. to 0.974 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 1.08491 ( -0.915198 0.790672 )
beta : -9.37167 ( 9.37167 19.2996 )
Epeak [keV] : 27.9348 ( -1.47356 1.82869 )
Norm@50keV : 7.31962 ( -7.31928 76.2236 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.41 using 59 PHA bins.
# Reduced chi-squared = 0.8802 for 55 degrees of freedom
# Null hypothesis probability = 7.226788e-01
Photon flux (15-150 keV) in 1 sec: ( ) ph/cm2/s
Energy fluence (15-150 keV) : 2.56028e-07 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.34896 (-0.359361 0.373083)
R^2/D10^2 : 9.87634 (-1.95636 2.45237)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 49.47 using 59 PHA bins.
# Reduced chi-squared = 0.8679 for 57 degrees of freedom
# Null hypothesis probability = 7.503408e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.988e-08 8.150e-09
25- 50 1.350e-07 9.050e-09
50-150 2.659e-08 5.195e-09
15-150 2.515e-07 1.525e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 26.1523 (-2.53512 2.87336)
Norm : 57.4463 (-6.68716 7.59019)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 72.74 using 59 PHA bins.
# Reduced chi-squared = 1.276 for 57 degrees of freedom
# Null hypothesis probability = 7.809823e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.082e-07 8.265e-09
25- 50 1.141e-07 7.600e-09
50-150 5.180e-08 9.515e-09
15-150 2.742e-07 1.865e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.22855 (-6.25458 -6.25458)
R1^2/D10^2 : 11.7977 (-11.8549 9.17804)
kT2 [keV] : 9.07562 (-9.20926 -9.20926)
R2^2/D10^2 : 1.80424 (-1.54315 10.1125)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.28 using 59 PHA bins.
# Reduced chi-squared = 0.8778 for 55 degrees of freedom
# Null hypothesis probability = 7.272744e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.310e-08 2.450e-07
25- 50 1.318e-07 8.240e-07
50-150 3.186e-08 5.130e-07
15-150 2.567e-07 1.301e-06
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: 2.54983 ( -0.21605 0.234883 )
Norm@50keV : 2.88379E-03 ( -0.000529641 0.000532769 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 80.69 using 59 PHA bins.
# Reduced chi-squared = 1.416 for 57 degrees of freedom
# Null hypothesis probability = 2.116126e-02
Photon flux (15-150 keV) in 9.785 sec: 0.584247 ( -0.0678129 0.0678192 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.86034e-07 ( -3.94381e-08 4.0728e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -1.60733 ( -2.67519 1.51052 )
Epeak [keV] : 29.0666 ( -3.25645 3.05265 )
Norm@50keV : 1.46642 ( -1.59349 91.6558 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.86 using 59 PHA bins.
# Reduced chi-squared = 0.9618 for 56 degrees of freedom
# Null hypothesis probability = 5.561837e-01
Photon flux (15-150 keV) in 9.785 sec: 0.555190 ( -0.066356 0.066676 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.4444e-07 ( -3.07787e-08 3.23883e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 1.87087 ( -1.72157 2.46762 )
beta : -10.0000 ( 10 10 )
Epeak [keV] : 29.1902 ( -3.33823 2.92555 )
Norm@50keV : 2.19621 ( -2.19614 86.3024 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.80 using 59 PHA bins.
# Reduced chi-squared = 0.9781 for 55 degrees of freedom
# Null hypothesis probability = 5.206748e-01
Photon flux (15-150 keV) in 9.785 sec: 0.555971 ( ) 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) = 3.60e-08
S(50-100 keV) = 1.38e-08
T90 vs. Hardness ratio plot
T90 = 400.035999953747 sec.
Hardness ratio (energy fluence ratio) = 0.383333
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.286781
Count Ratio (50-100 keV) / (15-25 keV) = -0.188037
Mask shadow pattern
IMX = 3.347629253620260E-02, IMY = 5.205209327656091E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.016000
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:
-107.619400 -0.004000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9677 -15.6495 1.1 38.2 137.0 2.6036 10.6 0.9 Sco X-1
254.3003 35.3850 10.3 46.1 -142.6 -0.3098 -1.1 8.1 Her X-1
262.8773 -24.6972 45.0 28.2 106.8 0.0471 0.3 7.7 GX 1+4
268.2171 -1.4272 3.5 13.5 165.1 0.3784 3.3 9.2 SW J1753.5-0127
270.2744 -25.0245 10.8 24.6 94.1 0.1635 1.1 3.3 GX 5-1
270.3668 -25.6988 3.2 25.2 93.1 0.5594 3.6 4.4 GRS 1758-258
273.9792 -14.0598 1.6 13.4 102.5 0.9140 7.2 2.1 GX 17+2
275.9794 -30.4460 3.5 28.0 79.1 0.5413 3.3 5.5 H1820-303
284.9063 -24.8452 15.3 22.1 60.7 -0.0891 -0.8 8.4 HT1900.1-2455
288.9413 10.9078 2.8 15.7 -83.7 0.4809 4.1 8.7 GRS 1915+105
262.8776 -33.7453 5.7 35.4 96.2 0.5258 2.0 7.7 GX 354-0
291.6968 15.3449 2.7 20.9 -83.0 0.5761 4.4 ------ UNKNOWN
313.3183 14.7297 3.0 36.1 -51.6 0.6626 3.9 ------ UNKNOWN
314.9531 26.0620 2.4 43.4 -65.4 2.3885 4.7 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-0.004000 9.780590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9098 -15.4325 0.0 38.2 137.3 -0.0300 -0.4 13.1 Sco X-1
254.4599 35.4657 33.7 46.1 -142.4 0.0281 0.3 7.4 Her X-1
263.0704 -24.7327 4.2 28.1 106.5 -0.1342 -2.8 3.4 GX 1+4
268.2259 -1.4048 6.6 13.5 165.2 -0.0554 -1.8 9.0 SW J1753.5-0127
270.2135 -24.8856 12.7 24.5 94.3 0.0393 0.9 12.2 GX 5-1
270.3808 -25.9190 7.0 25.3 92.9 0.0693 1.6 11.4 GRS 1758-258
274.1428 -14.0975 5.5 13.3 101.9 -0.0670 -2.1 8.8 GX 17+2
276.0164 -30.5156 4.8 28.0 79.0 -0.1149 -2.4 10.1 H1820-303
285.1079 -24.7870 5.6 22.1 60.2 0.0813 2.1 8.9 HT1900.1-2455
288.8786 10.7519 0.0 15.5 -83.7 -0.0439 -1.3 12.5 GRS 1915+105
263.1149 -33.9001 7.5 35.4 95.7 0.1178 1.5 7.4 GX 354-0
275.9081 -38.1245 2.7 35.5 76.4 0.3029 4.2 ------ UNKNOWN
296.1487 -22.4423 3.5 24.0 34.0 0.1199 3.3 ------ UNKNOWN
312.0981 -5.6363 2.3 30.5 -15.3 0.1821 5.0 ------ UNKNOWN
235.0286 19.7752 2.3 51.1 -172.8 0.4050 5.1 ------ UNKNOWN
293.7630 21.8630 0.9 27.5 -86.3 0.6117 13.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
58.180600 962.503800
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
254.2909 35.4731 0.0 36.9 -174.6 -1.5910 -2.0 11.3 Her X-1
268.3350 -1.4323 71.1 34.0 114.9 0.2290 0.2 2.3 SW J1753.5-0127
288.8191 10.9510 2.0 11.9 89.0 3.4665 5.7 1.3 GRS 1915+105
299.5959 35.1973 0.2 14.3 -95.2 33.9268 53.7 0.4 Cyg X-1
308.0843 40.9347 1.3 22.6 -85.9 6.5589 9.1 1.6 Cyg X-3
326.2494 38.3212 112.6 32.4 -63.0 0.0867 0.1 3.7 Cyg X-2
246.4985 5.7721 3.2 48.3 142.7 10.1316 3.6 ------ UNKNOWN
294.2350 -5.2229 2.6 27.1 63.8 3.6124 4.4 ------ UNKNOWN
241.8101 30.2913 2.4 47.0 176.6 6.4650 4.9 ------ UNKNOWN
351.9700 18.7474 4.2 54.4 -33.0 8.5109 2.8 ------ UNKNOWN
266.8617 66.7395 2.8 48.0 -129.0 11.3479 4.1 ------ UNKNOWN
Plot creation:
Fri Jun 24 09:02:04 EDT 2016