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
286.8994 -16.4093 0.0117 20.4338 -150.3150 2.0491415 16.472 TRIG_00755354
Foreground time interval of the image:
0.240 62.349 (delta_t = 62.109 [sec])
Background time interval of the image:
-512.151 -493.100 (delta_t = 19.052 [sec])
-239.352 0.240 (delta_t = 239.592 [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 12.160000
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 12.160000
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 12.160000
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 0.240 sec. to 181.560 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.93735 ( -0.14488 0.149438 )
Norm@50keV : 1.14833E-03 ( -0.000109282 0.00010774 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 42.16 using 59 PHA bins.
# Reduced chi-squared = 0.7397 for 57 degrees of freedom
# Null hypothesis probability = 9.290725e-01
Photon flux (15-150 keV) in 181.3 sec: 0.167485 ( -0.012934 0.01294 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.91556e-06 ( -1.75046e-07 1.78492e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.240 sec. to 181.560 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.21562 ( -0.6821 0.585574 )
Epeak [keV] : 45.1658 ( -10.7706 24.5168 )
Norm@50keV : 2.98146E-03 ( -0.00157951 0.00434873 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 37.57 using 59 PHA bins.
# Reduced chi-squared = 0.6708 for 56 degrees of freedom
# Null hypothesis probability = 9.723188e-01
Photon flux (15-150 keV) in 181.3 sec: 0.161710 ( -0.013623 0.013663 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.76245e-06 ( -1.98558e-07 2.10323e-07 ) ergs/cm2
Band function
Time interval is from 0.240 sec. to 181.560 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] : 10.2176 (-0.957006 1.07256)
R^2/D10^2 : 7.04999E-02 (-0.0223813 0.0324789)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.52 using 59 PHA bins.
# Reduced chi-squared = 1.167 for 57 degrees of freedom
# Null hypothesis probability = 1.820237e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.737e-07 3.699e-08
25- 50 7.012e-07 6.182e-08
50-150 3.894e-07 8.231e-08
15-150 1.364e-06 1.304e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 71.6273 (-16.0227 24.2482)
Norm : 0.813245 (-0.0979516 0.11558)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 37.61 using 59 PHA bins.
# Reduced chi-squared = 0.6598 for 57 degrees of freedom
# Null hypothesis probability = 9.778883e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.792e-07 4.061e-08
25- 50 6.070e-07 5.095e-08
50-150 7.929e-07 1.753e-07
15-150 1.779e-06 1.902e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.69032 (-1.10986 1.25582)
R1^2/D10^2 : 0.437435 (-0.220694 0.546359)
kT2 [keV] : 18.1787 (-3.5528 5.77681)
R2^2/D10^2 : 5.70530E-03 (-0.00382962 0.00699793)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 34.34 using 59 PHA bins.
# Reduced chi-squared = 0.6243 for 55 degrees of freedom
# Null hypothesis probability = 9.869500e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.831e-07 1.238e-07
25- 50 5.970e-07 2.054e-07
50-150 7.848e-07 4.198e-07
15-150 1.765e-06 6.457e-07
Peak spectrum fit
Power-law model
Time interval is from 42.708 sec. to 43.708 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.72435 ( -0.454524 0.470371 )
Norm@50keV : 5.56784E-03 ( -0.00152857 0.00146256 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.20 using 59 PHA bins.
# Reduced chi-squared = 0.9509 for 57 degrees of freedom
# Null hypothesis probability = 5.806945e-01
Photon flux (15-150 keV) in 1 sec: 0.745908 ( -0.176584 0.176925 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.14671e-08 ( -1.41807e-08 1.48705e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 42.708 sec. to 43.708 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.01649 ( -0.750696 0.00502127 )
Epeak [keV] : 6.91250 ( )
Norm@50keV : 3.88046E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.14 using 59 PHA bins.
# Reduced chi-squared = 0.9667 for 56 degrees of freedom
# Null hypothesis probability = 5.457509e-01
Photon flux (15-150 keV) in 1 sec: 0.749671 ( -0.186521 0.177328 ) ph/cm2/s
Energy fluence (15-150 keV) : 5.19505e-08 ( -1.78532e-08 1.49193e-08 ) ergs/cm2
Band function
Time interval is from 42.708 sec. to 43.708 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] : 9.81823 (-2.49697 3.99916)
R^2/D10^2 : 0.367520 (-0.267084 0.776495)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.08 using 59 PHA bins.
# Reduced chi-squared = 1.036 for 57 degrees of freedom
# Null hypothesis probability = 3.995837e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.168e-09 3.972e-09
25- 50 1.736e-08 8.202e-09
50-150 8.591e-09 5.227e-09
15-150 3.312e-08 1.699e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 110.578 (-67.2696 -112.041)
Norm : 3.21501 (-0.892684 1.48733)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.67 using 59 PHA bins.
# Reduced chi-squared = 0.9591 for 57 degrees of freedom
# Null hypothesis probability = 5.629788e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.395e-09 5.070e-09
25- 50 1.480e-08 8.650e-09
50-150 2.534e-08 1.834e-08
15-150 4.853e-08 3.128e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 7.52961 (-2.31389 2.90684)
R1^2/D10^2 : 0.883347 (-0.492268 2.98687)
kT2 [keV] : 81.0356 (-72.1633 -91.6043)
R2^2/D10^2 : 4.56532E-04 (-0.000311545 0.020541)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.84 using 59 PHA bins.
# Reduced chi-squared = 0.9425 for 55 degrees of freedom
# Null hypothesis probability = 5.962512e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.844e-09 5.135e-09
25- 50 1.528e-08 8.655e-09
50-150 3.335e-08 1.926e-08
15-150 5.747e-08 2.977e-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: 1.93830 ( -0.154048 0.158656 )
Norm@50keV : 1.93823E-03 ( -0.000194386 0.000191517 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.87 using 59 PHA bins.
# Reduced chi-squared = 0.8222 for 57 degrees of freedom
# Null hypothesis probability = 8.285385e-01
Photon flux (15-150 keV) in 62.11 sec: 0.282789 ( -0.0232278 0.0232432 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.10748e-06 ( -1.06697e-07 1.08722e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.31902 ( -0.723237 0.604928 )
Epeak [keV] : 45.1287 ( -14.7427 59.9802 )
Norm@50keV : 4.43124E-03 ( -0.00241276 0.00727892 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.79 using 59 PHA bins.
# Reduced chi-squared = 0.7819 for 56 degrees of freedom
# Null hypothesis probability = 8.822245e-01
Photon flux (15-150 keV) in 62.11 sec: 0.274354 ( -0.024466 0.024525 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.02664e-06 ( -1.25282e-07 1.31897e-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) = 5.66e-07
S(50-100 keV) = 5.91e-07
T90 vs. Hardness ratio plot
T90 = 170.29599994421 sec.
Hardness ratio (energy fluence ratio) = 1.04417
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.09257
Count Ratio (50-100 keV) / (15-25 keV) = 0.594302
Mask shadow pattern
IMX = -3.236722325517952E-01, IMY = 1.845073450929686E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 12.160000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 12.160000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 12.160000
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:
-512.151410 -493.099600
-239.352000 0.240000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9800 -15.6428 0.3 22.5 70.1 17.2208 41.2 0.2 Sco X-1
255.9688 -37.8266 0.7 16.0 -6.7 5.5549 15.6 1.3 4U 1700-377
256.3074 -36.3520 3.4 14.7 -3.9 1.2103 3.4 7.5 GX 349+2
262.9898 -24.7637 2.1 3.6 50.4 1.7567 5.5 1.5 GX 1+4
264.8829 -44.4949 6.9 19.7 -35.4 0.6354 1.7 6.6 4U 1735-44
268.3492 -1.2609 5.2 23.6 143.6 -0.8865 -2.2 11.6 SW J1753.5-0127
270.3356 -25.0755 2.6 3.1 -124.5 1.5195 4.4 2.8 GX 5-1
270.2902 -25.8023 5.7 3.2 -111.2 0.7220 2.0 3.6 GRS 1758-258
273.9780 -14.0208 3.2 12.7 172.9 1.2532 3.6 1.9 GX 17+2
276.0623 -30.2701 6.1 9.7 -93.8 0.6330 1.9 9.2 H1820-303
285.0521 -24.7554 7.8 16.4 -126.2 -0.5221 -1.5 9.9 HT1900.1-2455
288.8209 10.7939 7.9 41.5 173.7 0.8848 1.5 9.2 GRS 1915+105
263.1135 -33.8260 11.8 9.6 -20.2 0.3310 1.0 6.2 GX 354-0
250.0184 -19.2517 3.2 16.7 66.4 1.2616 3.7 ------ UNKNOWN
284.0904 10.0631 3.3 38.7 167.8 1.8744 3.5 ------ UNKNOWN
259.9091 -25.0163 1.0 6.4 47.1 4.0288 11.6 ------ UNKNOWN
294.5620 16.3724 2.4 49.2 176.1 4.2387 4.8 ------ UNKNOWN
224.8963 -53.5194 2.8 42.4 -3.6 2.3767 4.1 ------ UNKNOWN
278.9189 -20.3139 3.1 11.9 -149.7 1.1847 3.7 ------ UNKNOWN
234.1752 -65.2798 2.6 45.5 -21.3 2.6157 4.4 ------ UNKNOWN
303.5279 -6.8955 2.8 39.3 -150.7 2.2466 4.1 ------ UNKNOWN
UNKNOWN
UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.240000 62.348600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.8197 -15.6763 5.1 22.7 69.8 -0.3434 -2.3 9.5 Sco X-1
255.9348 -37.8083 4.4 16.0 -6.6 -0.3199 -2.6 3.3 4U 1700-377
256.5048 -36.4057 10.0 14.6 -4.5 -0.1437 -1.2 3.5 GX 349+2
263.0009 -24.9392 8.4 3.6 47.7 -0.1703 -1.4 11.6 GX 1+4
264.6485 -44.5485 4.9 19.8 -34.9 0.2986 2.4 7.2 4U 1735-44
268.5326 -1.4818 10.3 23.4 144.1 -0.1652 -1.1 10.0 SW J1753.5-0127
270.5088 -25.0493 97.8 3.2 -125.2 -0.0138 -0.1 12.3 GX 5-1
270.2362 -25.7204 11.6 3.1 -112.4 0.1167 1.0 3.8 GRS 1758-258
274.0362 -13.9069 5.2 12.8 172.8 0.2721 2.2 8.0 GX 17+2
276.0553 -30.4677 6.2 9.8 -92.8 -0.2368 -1.9 9.1 H1820-303
285.0896 -25.1269 0.0 16.4 -124.9 -0.0825 -0.6 12.7 HT1900.1-2455
288.8750 10.8595 5.0 41.6 173.7 -0.4656 -2.3 6.9 GRS 1915+105
262.9486 -33.9422 132.9 9.8 -19.7 0.0104 0.1 6.8 GX 354-0
267.7826 -16.9818 3.0 7.9 145.9 0.4498 3.9 ------ UNKNOWN
286.8994 -16.4092 0.7 20.4 -150.3 2.0490 16.5 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
127.948600 962.718000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9814 -15.6765 0.8 40.2 100.2 48.7059 13.7 2.2 Sco X-1
256.0063 -37.8533 1.5 34.6 60.9 12.1913 7.6 1.1 4U 1700-377
256.4904 -36.2948 10.4 33.5 63.0 -1.6071 -1.1 8.1 GX 349+2
263.0177 -24.7545 1.9 23.8 80.9 5.8733 6.2 0.7 GX 1+4
264.6171 -44.3091 19.2 33.6 44.6 0.7156 0.6 10.0 4U 1735-44
268.4522 -1.5810 8.8 23.5 142.6 -1.0844 -1.3 9.2 SW J1753.5-0127
270.2768 -25.1190 2.4 17.8 73.3 3.9542 4.9 2.4 GX 5-1
270.3592 -25.6793 6.4 18.0 71.6 1.6466 2.0 4.9 GRS 1758-258
274.1240 -14.0427 3.2 12.6 114.5 3.2460 3.6 6.9 GX 17+2
275.8547 -30.5121 3.6 17.3 49.0 2.6837 3.2 9.4 H1820-303
284.9402 -25.0970 5.6 8.9 27.0 -1.5684 -2.0 11.8 HT1900.1-2455
288.7859 10.9013 4.5 27.4 -160.8 2.1724 2.6 2.8 GRS 1915+105
299.6168 35.1801 1.4 53.0 -151.8 27.1565 8.6 1.8 Cyg X-1
262.8954 -33.9187 5.6 27.8 61.7 2.1050 2.1 6.9 GX 354-0
259.8829 -25.0239 1.0 26.6 82.0 11.5129 11.0 ------ UNKNOWN
272.4436 -26.4244 4.0 16.8 66.2 2.1104 2.9 ------ UNKNOWN
291.8280 -39.5958 2.6 23.5 5.8 3.2843 4.4 ------ UNKNOWN
314.9822 22.9555 3.2 48.0 -129.1 18.2210 3.6 ------ UNKNOWN
317.7531 17.2576 3.5 45.4 -121.3 15.9537 3.3 ------ UNKNOWN
Plot creation:
Thu Jun 22 11:34:29 EDT 2017