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
233.7978 -57.2468 0.0181 9.8 34.9 1.5380 10.6 TRIG_00770502
------------------------------------------
Foreground time interval of the image:
0.000 104.000 (delta_t = 104.000 [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 104.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.84328 ( -0.213655 0.22458 )
Norm@50keV : 8.73488E-04 ( -0.000126353 0.000123446 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.73 using 59 PHA bins.
# Reduced chi-squared = 0.9952 for 57 degrees of freedom
# Null hypothesis probability = 4.852729e-01
Photon flux (15-150 keV) in 104 sec: 0.122444 ( -0.0144604 0.0144633 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.35365e-07 ( -1.19339e-07 1.225e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 104.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.10101 ( -1.05769 0.839924 )
Epeak [keV] : 52.2454 ( -15.922 -52.2459 )
Norm@50keV : 2.28925E-03 ( -0.0022892 0.00662457 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.57 using 59 PHA bins.
# Reduced chi-squared = 0.9746 for 56 degrees of freedom
# Null hypothesis probability = 5.289543e-01
Photon flux (15-150 keV) in 104 sec: 0.118823 ( -0.014996 0.015018 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.75847e-07 ( -1.2803e-07 1.38363e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 104.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.10131 ( -0.743604 1.14524 )
beta : -10.0000 ( 10 7.10543e-15 )
Epeak [keV] : 52.2333 ( -15.8981 -52.2333 )
Norm@50keV : 2.28836E-03 ( -0.00228836 0.00663048 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.57 using 59 PHA bins.
# Reduced chi-squared = 0.9923 for 55 degrees of freedom
# Null hypothesis probability = 4.908137e-01
Photon flux (15-150 keV) in 104 sec: 0.119412 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.76629e-07 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 11.4144 (-1.54545 1.78295)
R^2/D10^2 : 3.53835E-02 (-0.0147342 0.025414)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.69 using 59 PHA bins.
# Reduced chi-squared = 1.170 for 57 degrees of freedom
# Null hypothesis probability = 1.782360e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.008e-07 2.294e-08
25- 50 2.987e-07 4.857e-08
50-150 2.260e-07 6.484e-08
15-150 6.255e-07 1.026e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 86.3659 (-28.6698 58.6366)
Norm : 0.563529 (-0.0901803 0.113716)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.73 using 59 PHA bins.
# Reduced chi-squared = 0.9602 for 57 degrees of freedom
# Null hypothesis probability = 5.607728e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.527e-07 2.720e-08
25- 50 2.559e-07 3.489e-08
50-150 3.798e-07 1.910e-07
15-150 7.884e-07 2.177e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.29662 (-1.47201 2.14687)
R1^2/D10^2 : 0.810917 (-0.642245 5.22029)
kT2 [keV] : 15.6643 (-3.06803 5.21757)
R2^2/D10^2 : 9.13257E-03 (-0.00634434 0.0126133)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.88 using 59 PHA bins.
# Reduced chi-squared = 0.9614 for 55 degrees of freedom
# Null hypothesis probability = 5.561981e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.557e-07 8.146e-08
25- 50 2.473e-07 1.201e-07
50-150 3.410e-07 1.974e-07
15-150 7.440e-07 3.296e-07
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 104.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.84328 ( -0.213655 0.22458 )
Norm@50keV : 8.73488E-04 ( -0.000126353 0.000123446 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.73 using 59 PHA bins.
# Reduced chi-squared = 0.9952 for 57 degrees of freedom
# Null hypothesis probability = 4.852729e-01
Photon flux (15-150 keV) in 104 sec: 0.122444 ( -0.0144604 0.0144633 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.35365e-07 ( -1.19339e-07 1.225e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 104.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.10101 ( -1.05769 0.839924 )
Epeak [keV] : 52.2454 ( -15.922 -52.2459 )
Norm@50keV : 2.28925E-03 ( -0.0022892 0.00662457 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.57 using 59 PHA bins.
# Reduced chi-squared = 0.9746 for 56 degrees of freedom
# Null hypothesis probability = 5.289543e-01
Photon flux (15-150 keV) in 104 sec: 0.118823 ( -0.014996 0.015018 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.75847e-07 ( -1.2803e-07 1.38363e-07 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 104.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.10131 ( -0.743604 1.14528 )
beta : -10.0000 ( 10 1.77636e-15 )
Epeak [keV] : 52.2333 ( -15.8981 -52.2333 )
Norm@50keV : 2.28836E-03 ( -0.00228836 0.00663048 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.57 using 59 PHA bins.
# Reduced chi-squared = 0.9923 for 55 degrees of freedom
# Null hypothesis probability = 4.908137e-01
Photon flux (15-150 keV) in 104 sec: 0.119412 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.76629e-07 ( 0 0 ) ergs/cm2
Single BB
Spectral model blackbody:
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 11.4144 (-1.54545 1.78295)
R^2/D10^2 : 3.53835E-02 (-0.0147342 0.025414)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 66.69 using 59 PHA bins.
# Reduced chi-squared = 1.170 for 57 degrees of freedom
# Null hypothesis probability = 1.782360e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.008e-07 2.247e-08
25- 50 2.987e-07 5.247e-08
50-150 2.260e-07 6.568e-08
15-150 6.255e-07 1.065e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 86.3659 (-28.6698 58.6366)
Norm : 0.563529 (-0.0901803 0.113716)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.73 using 59 PHA bins.
# Reduced chi-squared = 0.9602 for 57 degrees of freedom
# Null hypothesis probability = 5.607728e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.527e-07 2.844e-08
25- 50 2.559e-07 3.713e-08
50-150 3.798e-07 1.896e-07
15-150 7.884e-07 2.149e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 4.29662 (-1.47201 2.14687)
R1^2/D10^2 : 0.810917 (-0.642245 5.22029)
kT2 [keV] : 15.6643 (-3.06803 5.21757)
R2^2/D10^2 : 9.13257E-03 (-0.00634434 0.0126133)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.88 using 59 PHA bins.
# Reduced chi-squared = 0.9614 for 55 degrees of freedom
# Null hypothesis probability = 5.561981e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.557e-07 7.738e-08
25- 50 2.473e-07 1.250e-07
50-150 3.410e-07 1.981e-07
15-150 7.440e-07 3.602e-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: 1.84328 ( -0.213655 0.22458 )
Norm@50keV : 8.73488E-04 ( -0.000126353 0.000123446 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.73 using 59 PHA bins.
# Reduced chi-squared = 0.9952 for 57 degrees of freedom
# Null hypothesis probability = 4.852729e-01
Photon flux (15-150 keV) in 104 sec: 0.122444 ( -0.0144604 0.0144633 ) ph/cm2/s
Energy fluence (15-150 keV) : 8.35365e-07 ( -1.19339e-07 1.225e-07 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.10101 ( -1.05769 0.839924 )
Epeak [keV] : 52.2454 ( -15.922 -52.2459 )
Norm@50keV : 2.28925E-03 ( -0.0022892 0.00662457 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.57 using 59 PHA bins.
# Reduced chi-squared = 0.9746 for 56 degrees of freedom
# Null hypothesis probability = 5.289543e-01
Photon flux (15-150 keV) in 104 sec: 0.118823 ( -0.014996 0.015018 ) ph/cm2/s
Energy fluence (15-150 keV) : 7.75847e-07 ( -1.2803e-07 1.38363e-07 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.10131 ( -0.743604 1.14525 )
beta : -10.0000 ( 10 0 )
Epeak [keV] : 52.2333 ( -15.8981 -52.2333 )
Norm@50keV : 2.28836E-03 ( -0.00228836 0.00663048 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 54.57 using 59 PHA bins.
# Reduced chi-squared = 0.9923 for 55 degrees of freedom
# Null hypothesis probability = 4.908137e-01
Photon flux (15-150 keV) in 104 sec: 0.119412 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 7.76629e-07 ( 0 0 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 2.39e-07
S(50-100 keV) = 2.66e-07
T90 vs. Hardness ratio plot
T90 = 104 sec.
Hardness ratio (energy fluence ratio) = 1.11297
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 1.00454
Count Ratio (50-100 keV) / (15-25 keV) = 0.680414
Mask shadow pattern
IMX = 1.420380559304679E-01, IMY = -9.924069799014695E-02
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 104.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.3082 -60.7795 5.3 21.9 -135.5 0.3458 2.2 9.4 Cen X-3
186.6071 -62.8759 4.4 13.9 -133.6 0.4007 2.6 6.5 GX 301-2
244.9831 -15.6258 0.9 50.9 6.1 5.4083 13.6 0.9 Sco X-1
255.7976 -37.7058 7.9 34.1 32.2 0.3271 1.5 12.2 4U 1700-377
256.3679 -36.5631 9.6 35.4 31.9 0.2902 1.2 9.0 GX 349+2
263.0994 -24.7260 2.9 48.5 31.2 -2.0877 -4.0 5.1 GX 1+4
264.8955 -44.3149 5.0 32.6 49.3 0.5547 2.3 10.4 4U 1735-44
262.8329 -33.8460 13.7 40.4 37.1 0.2551 0.8 7.8 GX 354-0
233.7978 -57.2468 1.1 9.8 34.9 1.5380 10.6 ------ UNKNOWN
112.4777 -44.6976 4.2 57.2 -154.3 2.6362 2.7 ------ UNKNOWN
198.4536 -17.6814 4.3 46.9 -54.1 1.9909 2.7 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
143.100600 171.407700
172.000000 233.900600
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.3171 -60.6251 88.3 31.6 -142.8 0.0253 0.1 0.1 Cen X-3
186.5365 -62.7148 4.1 23.7 -142.6 0.4272 2.8 4.7 GX 301-2
244.9866 -15.6402 0.4 42.4 -3.5 6.2867 26.7 0.4 Sco X-1
255.8987 -37.6901 6.3 24.4 26.6 0.2794 1.8 10.1 4U 1700-377
256.5303 -36.3597 12.0 25.8 26.1 0.1528 1.0 6.0 GX 349+2
263.1288 -24.6092 0.0 38.8 25.7 -0.2275 -1.0 10.5 GX 1+4
264.7098 -44.3078 13.5 23.1 49.8 0.1442 0.9 8.6 4U 1735-44
270.2233 -25.0680 2.9 41.3 34.9 1.1078 3.9 3.4 GX 5-1
270.4101 -25.6062 0.0 41.0 35.6 0.1565 0.6 10.1 GRS 1758-258
275.9470 -30.3694 106.9 39.5 45.9 -0.0316 -0.1 1.1 H1820-303
262.9089 -33.7338 3.8 30.7 32.9 0.5785 3.0 7.3 GX 354-0
22.6773 -71.5865 2.3 49.3 148.0 3.3037 5.1 ------ UNKNOWN
268.5525 -24.8996 2.8 40.8 32.8 1.1459 4.2 ------ UNKNOWN
83.8542 -69.8147 2.8 51.1 173.3 2.0392 4.2 ------ UNKNOWN
87.9885 -65.0737 2.7 55.0 177.2 2.7561 4.2 ------ UNKNOWN
233.8453 -57.2326 1.7 0.0 69.1 0.9711 6.7 ------ UNKNOWN
236.1654 -6.1899 2.5 51.1 -16.5 1.5047 4.6 ------ UNKNOWN
219.9488 -4.2383 2.6 54.1 -36.7 3.6014 4.5 ------ UNKNOWN
Plot creation:
Mon Sep 4 08:47:58 EDT 2017