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
299.2705 -15.7216 0.1365 14.1 107.7 0.2441 1.4 TRIG_00872470
------------------------------------------
Foreground time interval of the image:
0.000 26.880 (delta_t = 26.880 [sec])
Background time interval of the image:
-239.352 -44.352 (delta_t = 195.000 [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 26.880000
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 26.880000
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 26.880000
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 26.880 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -1.25622 ( -0.695944 1.09283 )
Norm@50keV : 2.23335E-04 ( -0.00022175 0.000323453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.38 using 59 PHA bins.
# Reduced chi-squared = 0.8312 for 57 degrees of freedom
# Null hypothesis probability = 8.144422e-01
Photon flux (15-150 keV) in 26.88 sec: 0.0 5.93664E-02 ( -0.0351281 0.0356907 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( -1.53176e-07 1.43971e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 26.880 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 0.0 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.51 using 59 PHA bins.
# Reduced chi-squared = 1.027 for 56 degrees of freedom
# Null hypothesis probability = 4.192206e-01
Photon flux (15-150 keV) in 26.88 sec: 0.0 5.66694E-02 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 26.880 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 5.00000 ( -5 -5 )
beta : -1.54744 ( 1.54744 3.46078 )
Epeak [keV] : 282.294 ( )
Norm@50keV : 1.98375E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.82 using 59 PHA bins.
# Reduced chi-squared = 0.8513 for 55 degrees of freedom
# Null hypothesis probability = 7.756322e-01
Photon flux (15-150 keV) in 26.88 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] : 200.000 (-200 -200)
R^2/D10^2 : 3.67225E-05 (-1.95527e-05 -3.67226e-05)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.96 using 59 PHA bins.
# Reduced chi-squared = 0.8414 for 57 degrees of freedom
# Null hypothesis probability = 7.974993e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.00000 (-7 -7)
Norm : 0.0 (0 0)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.51 using 59 PHA bins.
# Reduced chi-squared = 1.009 for 57 degrees of freedom
# Null hypothesis probability = 4.563518e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 199.363 (-199.363 -199.363)
R1^2/D10^2 : 3.72625E-05 (-1.96348e-05 0.000184601)
kT2 [keV] : 10.0000 (-10 -10)
R2^2/D10^2 : 0.0 (0 0)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.51 using 59 PHA bins.
#Fit statistic : Chi-Squared = 47.96 using 59 PHA bins.
# Reduced chi-squared = 1.046 for 55 degrees of freedom
# Reduced chi-squared = 0.8721 for 55 degrees of freedom
# Null hypothesis probability = 3.825780e-01
# Null hypothesis probability = 7.381268e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 26.880 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -1.25622 ( -0.695944 1.09283 )
Norm@50keV : 2.23335E-04 ( -0.00022175 0.000323453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.38 using 59 PHA bins.
# Reduced chi-squared = 0.8312 for 57 degrees of freedom
# Null hypothesis probability = 8.144422e-01
Photon flux (15-150 keV) in 26.88 sec: 0.0 5.93664E-02 ( -0.0351281 0.0356907 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( -1.53176e-07 1.43971e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 26.880 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 0.0 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.51 using 59 PHA bins.
# Reduced chi-squared = 1.027 for 56 degrees of freedom
# Null hypothesis probability = 4.192206e-01
Photon flux (15-150 keV) in 26.88 sec: 0.0 5.66694E-02 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 26.880 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 5.00000 ( -5 -5 )
beta : -1.54744 ( 1.54744 3.46078 )
Epeak [keV] : 282.294 ( )
Norm@50keV : 1.98375E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.82 using 59 PHA bins.
# Reduced chi-squared = 0.8513 for 55 degrees of freedom
# Null hypothesis probability = 7.756322e-01
Photon flux (15-150 keV) in 26.88 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] : 200.000 (-200 -200)
R^2/D10^2 : 3.67225E-05 (-1.95527e-05 -3.67226e-05)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.96 using 59 PHA bins.
# Reduced chi-squared = 0.8414 for 57 degrees of freedom
# Null hypothesis probability = 7.974993e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 7.00000 (-7 -7)
Norm : 0.0 (0 0)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.51 using 59 PHA bins.
# Reduced chi-squared = 1.009 for 57 degrees of freedom
# Null hypothesis probability = 4.563518e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 199.363 (-147.729 -199.363)
R1^2/D10^2 : 3.72625E-05 (-1.96348e-05 0.000184601)
kT2 [keV] : 10.0000 (-10 -10)
R2^2/D10^2 : 0.0 (0 0)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.51 using 59 PHA bins.
#Fit statistic : Chi-Squared = 47.96 using 59 PHA bins.
# Reduced chi-squared = 1.046 for 55 degrees of freedom
# Reduced chi-squared = 0.8721 for 55 degrees of freedom
# Null hypothesis probability = 3.825780e-01
# Null hypothesis probability = 7.381268e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
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: -1.25622 ( -0.695944 1.09283 )
Norm@50keV : 2.23335E-04 ( -0.00022175 0.000323453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 47.38 using 59 PHA bins.
# Reduced chi-squared = 0.8312 for 57 degrees of freedom
# Null hypothesis probability = 8.144422e-01
Photon flux (15-150 keV) in 26.88 sec: 0.0 5.93664E-02 ( -0.0351281 0.0356907 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( -1.53176e-07 1.43971e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.00000 ( )
Epeak [keV] : 50.0000 ( )
Norm@50keV : 0.0 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 57.51 using 59 PHA bins.
# Reduced chi-squared = 1.027 for 56 degrees of freedom
# Null hypothesis probability = 4.192206e-01
Photon flux (15-150 keV) in 26.88 sec: 0.0 5.66694E-02 5.58416E-02 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 5.00000 ( -5 -5 )
beta : -1.54744 ( 1.54744 3.46078 )
Epeak [keV] : 282.294 ( )
Norm@50keV : 1.98375E-04 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.82 using 59 PHA bins.
# Reduced chi-squared = 0.8513 for 55 degrees of freedom
# Null hypothesis probability = 7.756322e-01
Photon flux (15-150 keV) in 26.88 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) = 0.00e+006.51e-09
S(50-100 keV) = 0.00e+006.43e-08
T90 vs. Hardness ratio plot
T90 = 26.8799999952316 sec.
Hardness ratio (energy fluence ratio) =
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.505486
Count Ratio (50-100 keV) / (15-25 keV) = -0.887138
Mask shadow pattern
IMX = -7.620421242541059E-02, IMY = -2.388754120414345E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 26.880000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 26.880000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 26.880000
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:
-239.352000 -44.352000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.0142 -15.7232 4.1 38.2 -83.8 9.9752 2.9 5.4 Sco X-1
254.4323 35.4009 15.2 58.0 -16.2 3.5897 0.8 3.7 Her X-1
255.9314 -37.7060 7.4 34.1 -124.5 2.5394 1.6 8.7 4U 1700-377
256.3789 -36.4423 24.0 33.1 -122.9 0.7876 0.5 3.0 GX 349+2
263.1904 -24.8739 0.0 22.5 -106.7 1.4398 1.2 12.5 GX 1+4
264.5378 -44.3623 34.8 34.0 -141.1 -0.4810 -0.3 10.2 4U 1735-44
268.3756 -1.5089 11.8 21.0 -38.8 -1.1499 -1.0 3.4 SW J1753.5-0127
270.4079 -24.9212 56.0 16.7 -116.0 0.1996 0.2 11.6 GX 5-1
270.2196 -25.6059 15.0 17.2 -117.6 0.7573 0.8 9.4 GRS 1758-258
274.0574 -14.1064 6.0 10.3 -73.7 1.9550 1.9 5.2 GX 17+2
276.0136 -30.5050 99.1 17.4 -141.6 -0.1233 -0.1 9.5 H1820-303
284.9021 -25.0518 5.3 10.1 -168.3 2.0028 2.2 10.7 HT1900.1-2455
288.9618 10.8761 20.6 26.2 22.3 0.7138 0.6 10.5 GRS 1915+105
299.4873 35.1237 10.6 52.0 28.1 4.5653 1.1 6.9 Cyg X-1
263.1509 -33.7378 11.9 27.0 -125.0 1.1772 1.0 9.9 GX 354-0
270.3470 22.2214 2.8 39.8 -8.3 5.9218 4.1 ------ UNKNOWN
255.2460 35.5173 2.4 57.7 -15.5 20.1371 4.7 ------ UNKNOWN
244.7791 24.4711 2.9 55.4 -32.4 26.4826 4.0 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
0.000000 26.880000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
245.1231 -15.7502 11.8 38.1 -83.8 0.5018 1.0 10.6 Sco X-1
254.3577 35.2848 5.3 57.9 -16.4 1.7366 2.2 6.0 Her X-1
255.9479 -37.8317 7.6 34.2 -124.7 0.4205 1.5 2.0 4U 1700-377
256.6207 -36.5372 5.8 33.0 -123.3 -0.5434 -2.0 11.3 GX 349+2
263.1904 -24.8739 0.0 22.5 -106.7 0.2687 1.3 12.5 GX 1+4
264.5878 -44.3041 10.1 33.9 -141.1 -0.2656 -1.1 11.0 4U 1735-44
268.2376 -1.5556 10.2 21.1 -39.2 -0.2092 -1.1 10.0 SW J1753.5-0127
270.2295 -25.0812 47.0 16.9 -116.2 -0.0390 -0.2 3.0 GX 5-1
270.3112 -25.7489 8.6 17.2 -118.2 0.2272 1.4 0.6 GRS 1758-258
273.8281 -13.9177 0.0 10.6 -72.9 0.1717 1.0 12.6 GX 17+2
276.0967 -30.3652 6.9 17.3 -141.5 -0.2929 -1.7 8.9 H1820-303
285.2083 -24.9399 4.1 10.0 -170.0 -0.4572 -2.8 9.4 HT1900.1-2455
288.9563 10.8963 13.1 26.2 22.3 0.1669 0.9 9.8 GRS 1915+105
299.7719 35.0960 36.7 52.1 28.4 0.2112 0.3 10.9 Cyg X-1
263.1593 -33.7972 9.8 27.1 -125.1 0.2421 1.2 8.8 GX 354-0
Post-slew image of 15-350 keV band
Time interval of the image:
246.148590 962.767700
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
262.8474 -24.8217 13.8 35.2 -96.9 -1.2483 -0.8 9.9 GX 1+4
264.7721 -44.3604 7.3 40.9 -127.7 2.1158 1.6 5.5 4U 1735-44
268.3871 -1.5862 22.0 33.5 -54.1 -0.5904 -0.5 8.1 SW J1753.5-0127
270.2260 -25.0213 3.4 28.7 -99.7 3.5025 3.4 4.7 GX 5-1
270.3734 -25.6894 6.7 28.7 -101.1 1.7533 1.7 5.0 GRS 1758-258
274.0763 -14.0754 3.7 24.4 -75.5 2.4437 3.1 4.7 GX 17+2
276.0036 -30.3755 4.8 25.9 -114.6 2.0671 2.4 4.1 H1820-303
284.9395 -24.7868 12.7 16.2 -112.4 -0.6874 -0.9 9.6 HT1900.1-2455
288.7984 10.8385 2.5 28.4 -7.9 3.4744 4.6 6.4 GRS 1915+105
299.5745 35.2112 1.5 50.9 14.4 15.6879 7.9 1.0 Cyg X-1
262.9852 -33.7229 14.1 37.3 -111.6 1.1954 0.8 6.7 GX 354-0
337.5665 -19.6246 3.3 36.7 116.1 7.4111 3.4 ------ UNKNOWN
300.4150 24.7881 2.9 40.5 15.7 4.1136 3.9 ------ UNKNOWN
287.4293 9.7267 3.5 28.0 -11.4 2.4604 3.3 ------ UNKNOWN
256.5922 -53.3368 2.9 50.3 -134.2 14.4602 3.9 ------ UNKNOWN
Plot creation:
Mon Nov 19 13:32:27 EST 2018