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
254.5232 34.9823 0.0084 46.7038 -29.2684 3.8462961 22.880 TRIG_00770528
Foreground time interval of the image:
-9.996 25.704 (delta_t = 35.700 [sec])
Background time interval of the image:
-239.848 -9.996 (delta_t = 229.852 [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 -9.996 sec. to 25.704 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.95058 ( -0.119787 0.122369 )
Norm@50keV : 7.16879E-03 ( -0.000514595 0.000508838 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 72.71 using 59 PHA bins.
# Reduced chi-squared = 1.276 for 57 degrees of freedom
# Null hypothesis probability = 7.843826e-02
Photon flux (15-150 keV) in 35.7 sec: 1.05168 ( -0.071412 0.07168 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.35564e-06 ( -1.63849e-07 1.64757e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -9.996 sec. to 25.704 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.01065 ( -0.446129 0.013823 )
Epeak [keV] : 8.12603 ( )
Norm@50keV : 6.65484E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 72.64 using 59 PHA bins.
# Reduced chi-squared = 1.297 for 56 degrees of freedom
# Null hypothesis probability = 6.676483e-02
Photon flux (15-150 keV) in 35.7 sec: 1.03062 ( -0.133493 0.10102 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.36946e-06 ( -1.83818e-07 1.57155e-07 ) ergs/cm2
Band function
Time interval is from -9.996 sec. to 25.704 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] : 10.8008 ( )
R^2/D10^2 : 0.351252 ( )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 145.46 using 59 PHA bins.
# Reduced chi-squared = 2.5520 for 57 degrees of freedom
# Null hypothesis probability = 1.128413e-09
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.045e-07 3.857e-08
25- 50 8.407e-07 6.515e-08
50-150 5.462e-07 8.140e-08
15-150 1.691e-06 1.335e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 82.1585 (-16.3364 23.3772)
Norm : 4.80002 (-0.505304 0.582645)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 78.67 using 59 PHA bins.
# Reduced chi-squared = 1.380 for 57 degrees of freedom
# Null hypothesis probability = 3.014288e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.454e-07 4.409e-08
25- 50 7.378e-07 4.802e-08
50-150 1.060e-06 1.662e-07
15-150 2.243e-06 2.171e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.23568 (-1.01474 1.02781)
R1^2/D10^2 : 1.35596 (-0.522026 1.00789)
kT2 [keV] : 33.5595 (-8.99683 19.401)
R2^2/D10^2 : 3.73236E-03 (-0.00273552 0.0073531)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 71.03 using 59 PHA bins.
# Reduced chi-squared = 1.291 for 55 degrees of freedom
# Null hypothesis probability = 7.173133e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.427e-07 6.788e-08
25- 50 7.548e-07 1.119e-07
50-150 1.177e-06 5.299e-07
15-150 2.375e-06 6.251e-07
Peak spectrum fit
Power-law model
Time interval is from 0.580 sec. to 1.580 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.84979 ( -0.201656 0.207154 )
Norm@50keV : 2.78208E-02 ( -0.00355849 0.00349897 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.43 using 59 PHA bins.
# Reduced chi-squared = 1.183 for 57 degrees of freedom
# Null hypothesis probability = 1.625325e-01
Photon flux (15-150 keV) in 1 sec: 3.91038 ( -0.47119 0.47223 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.55847e-07 ( -3.25669e-08 3.2782e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.580 sec. to 1.580 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.85523 ( -0.712774 0.705641 )
Epeak [keV] : 9999.36 ( )
Norm@50keV : 2.77527E-02 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.43 using 59 PHA bins.
# Reduced chi-squared = 1.204 for 56 degrees of freedom
# Null hypothesis probability = 1.409466e-01
Photon flux (15-150 keV) in 1 sec: 3.58162 ( -0.77133 0.79692 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.56478e-07 ( -3.32853e-08 2.65699e-08 ) ergs/cm2
Band function
Time interval is from 0.580 sec. to 1.580 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] : 10.5041 (-1.40723 1.70064)
R^2/D10^2 : 1.53282 (-0.676758 1.14437)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 88.75 using 59 PHA bins.
# Reduced chi-squared = 1.557 for 57 degrees of freedom
# Null hypothesis probability = 4.502741e-03
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.496e-08 6.565e-09
25- 50 9.303e-08 1.348e-08
50-150 5.589e-08 1.564e-08
15-150 1.839e-07 2.995e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 94.6785 (-31.6737 66.1057)
Norm : 17.4459 (-2.92645 3.69747)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.19 using 59 PHA bins.
# Reduced chi-squared = 1.214 for 57 degrees of freedom
# Null hypothesis probability = 1.290370e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.558e-08 8.060e-09
25- 50 7.793e-08 9.640e-09
50-150 1.223e-07 5.308e-08
15-150 2.458e-07 5.765e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 8.04695 (-1.63591 1.54601)
R1^2/D10^2 : 3.73015 (-1.11935 2.09058)
kT2 [keV] : 60.8775 (-67.215 -99.3076)
R2^2/D10^2 : 2.74662E-03 (-0.000826788 0.00876225)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.08 using 59 PHA bins.
# Reduced chi-squared = 1.129 for 55 degrees of freedom
# Null hypothesis probability = 2.383968e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 4.482e-08 1.561e-08
25- 50 8.470e-08 2.416e-08
50-150 1.245e-07 6.694e-08
15-150 2.541e-07 9.231e-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: 1.95058 ( -0.119787 0.122369 )
Norm@50keV : 7.16879E-03 ( -0.000514595 0.000508838 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 72.71 using 59 PHA bins.
# Reduced chi-squared = 1.276 for 57 degrees of freedom
# Null hypothesis probability = 7.843826e-02
Photon flux (15-150 keV) in 35.7 sec: 1.05161 ( -0.071399 0.0716687 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.35524e-06 ( -1.64075e-07 1.64755e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.95061 ( -0.393084 0.530115 )
Epeak [keV] : 9982.91 ( )
Norm@50keV : 7.18174E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 72.71 using 59 PHA bins.
# Reduced chi-squared = 1.298 for 56 degrees of freedom
# Null hypothesis probability = 6.600019e-02
Photon flux (15-150 keV) in 35.7 sec: 1.05196 ( -0.072196 0.0705 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.35458e-06 ( -1.70917e-07 1.63977e-07 ) 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) = 7.00e-07
S(50-100 keV) = 7.21e-07
T90 vs. Hardness ratio plot
T90 = 27.7239999771118 sec.
Hardness ratio (energy fluence ratio) = 1.03
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.18041
Count Ratio (50-100 keV) / (15-25 keV) = 0.68109
Mask shadow pattern
IMX = 9.258263296751151E-01, IMY = 5.188779791649856E-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:
-239.848000 -9.996000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9889 -15.6555 1.4 36.3 -109.8 4.2700 8.2 1.1 Sco X-1
254.3920 35.3379 5.4 47.1 -29.1 -0.9778 -2.1 3.2 Her X-1
255.9831 -37.8427 21.0 39.7 -149.3 0.2048 0.5 0.2 4U 1700-377
256.4417 -36.4386 16.2 38.4 -148.3 0.2383 0.7 1.0 GX 349+2
262.8540 -24.7629 17.4 26.0 -141.5 0.1613 0.7 8.5 GX 1+4
264.8394 -44.4167 4.7 41.7 -163.3 0.8184 2.4 4.6 4U 1735-44
268.3844 -1.4431 235.3 12.4 -74.0 0.0114 0.0 1.1 SW J1753.5-0127
270.2696 -25.0106 2.3 22.3 -155.4 1.0705 4.9 4.2 GX 5-1
270.3234 -25.8476 6.0 23.0 -156.4 0.4159 1.9 6.4 GRS 1758-258
273.9570 -14.0578 3.2 11.1 -146.0 0.7713 3.6 3.1 GX 17+2
276.0808 -30.5219 0.0 25.9 -171.6 0.2890 1.2 12.3 H1820-303
285.1514 -24.7776 7.9 20.4 167.3 0.3149 1.5 10.6 HT1900.1-2455
288.8015 10.9563 1.1 18.0 28.1 2.2169 10.5 0.7 GRS 1915+105
299.6069 35.1925 1.2 44.0 22.9 4.1142 9.4 1.0 Cyg X-1
308.1104 40.9533 14.1 52.5 26.4 0.8617 0.8 0.0 Cyg X-3
263.0175 -33.8873 3.3 33.1 -153.1 0.9361 3.5 3.5 GX 354-0
266.5899 7.8399 3.5 18.7 -47.0 0.7433 3.3 ------ UNKNOWN
237.6865 -31.7089 2.8 48.0 -129.2 3.9312 4.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
-9.996000 25.704000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9678 -15.5669 3.0 36.3 -109.7 -0.6805 -3.8 4.5 Sco X-1
254.3053 35.1620 0.0 47.0 -29.3 0.0318 0.2 13.2 Her X-1
255.8217 -37.9552 0.0 39.8 -149.3 -0.2107 -1.7 10.3 4U 1700-377
256.5858 -36.5843 21.6 38.4 -148.6 -0.0673 -0.5 12.1 GX 349+2
263.0439 -24.6040 11.3 25.7 -141.6 0.0941 1.0 8.7 GX 1+4
264.6198 -44.3606 5.0 41.8 -163.1 0.2776 2.3 7.5 4U 1735-44
268.3372 -1.5992 6.0 12.4 -74.8 -0.1505 -1.9 9.0 SW J1753.5-0127
270.1495 -25.1018 32.2 22.4 -155.2 0.0292 0.4 7.4 GX 5-1
270.1608 -25.7830 6.3 23.0 -156.0 0.1491 1.8 8.0 GRS 1758-258
274.1598 -13.8910 0.0 10.8 -146.4 0.1760 2.3 12.5 GX 17+2
276.0728 -30.4174 8.8 25.8 -171.6 0.1029 1.3 8.2 H1820-303
285.1928 -25.0651 0.0 20.7 167.4 0.0981 1.3 12.2 HT1900.1-2455
288.7193 11.0329 5.8 18.0 27.7 -0.1558 -2.0 7.0 GRS 1915+105
299.5720 35.2253 9.2 44.1 22.9 -0.1993 -1.3 1.7 Cyg X-1
308.0006 40.9514 5.3 52.4 26.3 -0.8067 -2.2 5.0 Cyg X-3
262.9515 -33.7456 5.3 33.0 -152.9 -0.2109 -2.2 5.7 GX 354-0
320.1092 -36.6359 2.8 48.3 136.5 1.4129 4.2 ------ UNKNOWN
254.5305 34.9781 0.6 46.7 -29.3 3.8879 23.1 ------ UNKNOWN
241.4875 27.5046 2.1 49.5 -46.9 1.8738 5.4 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
171.852610 962.248700
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
299.6166 35.2076 2.1 48.7 154.1 11.4289 5.5 1.3 Cyg X-1
308.0681 40.9823 2.5 40.2 150.7 6.3439 4.7 2.6 Cyg X-3
326.1872 38.3316 38.2 34.9 129.0 0.3495 0.3 0.9 Cyg X-2
60.5139 21.6167 3.3 55.4 0.6 7.1431 3.5 ------ UNKNOWN
268.6834 45.4097 3.4 53.1 -173.4 6.0110 3.3 ------ UNKNOWN
98.3637 56.5070 2.9 42.1 -57.6 8.6661 3.9 ------ UNKNOWN
106.4099 58.1563 3.3 43.6 -64.0 11.0438 3.5 ------ UNKNOWN
Plot creation:
Fri Sep 29 01:16:09 EDT 2017