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Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
245.0040 -59.2677 0.0725 32.2 -144.8 0.4158 2.7 TRIG_00609694
------------------------------------------
Foreground time interval of the image:
0.000 64.000 (delta_t = 64.000 [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
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
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 64.000000
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 64.000000
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 64.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.44287 ( -1.14959 1.77422 )
Norm@50keV : 1.35619E-04 ( -0.000135618 0.0001941 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.24 using 59 PHA bins.
# Reduced chi-squared = 1.215 for 57 degrees of freedom
# Null hypothesis probability = 1.281747e-01
Photon flux (15-150 keV) in 64 sec: 5.23782E-02 ( -0.0207471 0.0208966 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.31939e-07 ( -6.2973e-08 8.06842e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -2.04556 ( )
Epeak [keV] : 15.5792 ( )
Norm@50keV : 4.45335 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.28 using 59 PHA bins.
# Reduced chi-squared = 1.237 for 56 degrees of freedom
# Null hypothesis probability = 1.095305e-01
Photon flux (15-150 keV) in 64 sec: 5.21114E-02 ( -0.0205426 0.0208749 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.32331e-07 ( -7.15098e-08 7.63642e-08 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 3.53714 ( 1.84201 1.84201 )
beta : -5.06877 ( 3.80795 3.32074 )
Epeak [keV] : 17.0505 ( -2.16169 44.4727 )
Norm@50keV : 65.5504 ( -67.3846 379.078 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.96 using 59 PHA bins.
# Reduced chi-squared = 1.254 for 55 degrees of freedom
# Null hypothesis probability = 9.770687e-02
Photon flux (15-150 keV) in 64 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] : 3.90001 (-1.25522 1.93475)
R^2/D10^2 : 1.53059 (-1.53059 12.3158)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.28 using 59 PHA bins.
# Reduced chi-squared = 1.215 for 57 degrees of freedom
# Null hypothesis probability = 1.275052e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.871e-08 4.829e-08
25- 50 2.642e-08 1.820e-08
50-150 2.751e-10 3.242e-10
15-150 1.054e-07 6.378e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.4493 (-5.48001 18.7603)
Norm : 1.61859 (-1.61854 8.13547)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.39 using 59 PHA bins.
# Reduced chi-squared = 1.217 for 57 degrees of freedom
# Null hypothesis probability = 1.256167e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.512e-08 4.605e-08
25- 50 3.428e-08 2.279e-08
50-150 2.644e-09 3.219e-09
15-150 1.120e-07 6.899e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.80418 (-2.39941 1.75858)
R1^2/D10^2 : 1.71721 (-1.28511 17.4049)
kT2 [keV] : 199.304 (-199.363 -199.363)
R2^2/D10^2 : 4.61514E-06 (-4.86296e-06 4.14311)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.24 using 59 PHA bins.
# Reduced chi-squared = 1.223 for 55 degrees of freedom
# Null hypothesis probability = 1.245126e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.834e-08 4.810e-08
25- 50 2.755e-08 1.713e-08
50-150 7.839e-08 3.318e-10
15-150 1.843e-07 6.653e-08
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.44287 ( -1.14959 1.77422 )
Norm@50keV : 1.35619E-04 ( -0.000135618 0.0001941 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.24 using 59 PHA bins.
# Reduced chi-squared = 1.215 for 57 degrees of freedom
# Null hypothesis probability = 1.281747e-01
Photon flux (15-150 keV) in 64 sec: 5.23782E-02 ( -0.0207471 0.0208966 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.31939e-07 ( -6.2973e-08 8.06842e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -2.04556 ( )
Epeak [keV] : 15.5792 ( )
Norm@50keV : 4.45335 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.28 using 59 PHA bins.
# Reduced chi-squared = 1.237 for 56 degrees of freedom
# Null hypothesis probability = 1.095305e-01
Photon flux (15-150 keV) in 64 sec: 5.21114E-02 ( -0.0205426 0.0208749 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.32331e-07 ( -7.15098e-08 7.63642e-08 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 64.000 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 3.53714 ( 1.84201 1.84201 )
beta : -5.06877 ( 3.80795 3.32074 )
Epeak [keV] : 17.0505 ( -2.16169 44.4727 )
Norm@50keV : 65.5504 ( -67.3846 379.078 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.96 using 59 PHA bins.
# Reduced chi-squared = 1.254 for 55 degrees of freedom
# Null hypothesis probability = 9.770687e-02
Photon flux (15-150 keV) in 64 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] : 3.90001 (-1.25522 1.93475)
R^2/D10^2 : 1.53059 (-1.53059 12.3158)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.28 using 59 PHA bins.
# Reduced chi-squared = 1.215 for 57 degrees of freedom
# Null hypothesis probability = 1.275052e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.871e-08 4.787e-08
25- 50 2.642e-08 1.804e-08
50-150 2.751e-10 3.450e-10
15-150 1.054e-07 6.349e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 10.4493 (-5.48001 18.7603)
Norm : 1.61859 (-1.61854 8.13547)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.39 using 59 PHA bins.
# Reduced chi-squared = 1.217 for 57 degrees of freedom
# Null hypothesis probability = 1.256167e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.512e-08 4.685e-08
25- 50 3.428e-08 2.391e-08
50-150 2.644e-09 2.748e-09
15-150 1.120e-07 7.053e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 3.80418 (-2.39941 1.75858)
R1^2/D10^2 : 1.71721 (-1.28511 17.4049)
kT2 [keV] : 199.304 (-199.363 -199.363)
R2^2/D10^2 : 4.61514E-06 (-4.86296e-06 4.14311)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 67.24 using 59 PHA bins.
# Reduced chi-squared = 1.223 for 55 degrees of freedom
# Null hypothesis probability = 1.245126e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.834e-08 4.624e-08
25- 50 2.755e-08 1.637e-08
50-150 7.839e-08 4.205e-10
15-150 1.843e-07 6.762e-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: 3.44287 ( -1.14959 1.77422 )
Norm@50keV : 1.35619E-04 ( -0.000135618 0.0001941 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.24 using 59 PHA bins.
# Reduced chi-squared = 1.215 for 57 degrees of freedom
# Null hypothesis probability = 1.281747e-01
Photon flux (15-150 keV) in 64 sec: 5.23782E-02 ( -0.0207471 0.0208966 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.31939e-07 ( -6.2973e-08 8.06842e-08 ) ergs/cm2
Cutoff power-law model
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -2.04556 ( )
Epeak [keV] : 15.5792 ( )
Norm@50keV : 4.45335 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 69.28 using 59 PHA bins.
# Reduced chi-squared = 1.237 for 56 degrees of freedom
# Null hypothesis probability = 1.095305e-01
Photon flux (15-150 keV) in 64 sec: 5.21114E-02 ( -0.0205426 0.0208749 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.32331e-07 ( -7.15098e-08 7.63642e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 3.53714 ( 1.84201 1.84201 )
beta : -5.06877 ( 3.80795 3.32074 )
Epeak [keV] : 17.0505 ( -2.16169 44.4727 )
Norm@50keV : 65.5504 ( -67.3846 379.078 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 68.96 using 59 PHA bins.
# Reduced chi-squared = 1.254 for 55 degrees of freedom
# Null hypothesis probability = 9.770687e-02
Photon flux (15-150 keV) in 64 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) = 4.14e-08
S(50-100 keV) = 1.52e-08
T90 vs. Hardness ratio plot
T90 = 64 sec.
Hardness ratio (energy fluence ratio) = 0.36715
Color vs. Color plot
Count Ratio (25-50 keV) / (15-25 keV) = 0.329858
Count Ratio (50-100 keV) / (15-25 keV) = 0.15582
Mask shadow pattern
IMX = -5.148628356664634E-01, IMY = 3.632301555618569E-01
TIME vs. PHA plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
TIME vs. DetID plot around the trigger time
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
100 us light curve (15-350 keV)
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000
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 64.000000
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
244.9938 -15.6227 0.5 25.8 -45.4 2.8458 21.3 1.3 Sco X-1
255.8390 -37.7724 7.4 12.0 -114.6 0.2133 1.6 8.2 4U 1700-377
256.3799 -36.3495 7.2 10.9 -109.4 0.2092 1.6 5.2 GX 349+2
263.1879 -24.8002 4.3 7.3 -21.1 -0.3238 -2.7 10.3 GX 1+4
264.7850 -44.5963 8.2 13.9 -157.7 -0.1650 -1.4 9.0 4U 1735-44
268.4093 -1.2920 5.7 29.6 14.8 0.3055 2.0 9.9 SW J1753.5-0127
270.1664 -25.2612 0.0 6.1 34.5 0.2550 2.1 12.7 GX 5-1
270.2733 -25.7700 10.8 5.6 37.2 0.1517 1.3 2.3 GRS 1758-258
274.0465 -14.0048 11.7 17.9 33.7 0.1339 1.0 3.0 GX 17+2
275.8481 -30.2701 5.2 7.0 100.1 0.2707 2.2 7.0 H1820-303
285.0144 -24.9458 4.7 16.4 86.2 0.3275 2.5 1.9 HT1900.1-2455
288.7707 10.9785 3.7 46.5 42.5 1.2698 3.1 2.6 GRS 1915+105
262.8457 -34.0094 0.0 5.2 -114.5 0.3463 2.8 12.7 GX 354-0
287.2862 4.3065 2.6 39.9 44.8 1.1618 4.5 ------ UNKNOWN
288.2461 -12.7376 2.6 26.2 64.0 0.7860 4.4 ------ UNKNOWN
217.3142 -82.1790 2.7 54.3 -159.1 1.6622 4.3 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image:
124.900600 917.100590
# RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name
# [deg] [deg] ['] [deg] [deg] [']
170.3238 -60.6372 13.6 35.3 -124.3 1.4643 0.8 0.9 Cen X-3
186.7538 -62.8068 3.1 27.4 -121.6 4.8785 3.7 3.5 GX 301-2
244.9837 -15.6402 0.6 43.7 0.7 36.7610 18.4 0.2 Sco X-1
255.8614 -38.0066 6.0 22.5 23.6 2.3079 1.9 11.4 4U 1700-377
256.3968 -36.5764 5.9 24.0 23.7 2.4030 2.0 9.4 GX 349+2
262.8878 -24.8175 6.9 36.7 28.5 3.1498 1.7 7.9 GX 1+4
264.7490 -44.5464 13.2 19.0 48.3 1.0096 0.9 5.8 4U 1735-44
270.3521 -25.0655 5.7 38.6 39.2 4.1954 2.0 3.8 GX 5-1
270.1931 -25.7085 6.2 37.9 39.3 3.8080 1.9 6.3 GRS 1758-258
276.0325 -30.2961 4.0 35.8 50.3 6.5672 2.9 7.0 H1820-303
263.0404 -33.7526 15.3 28.2 33.7 -1.0792 -0.8 5.5 GX 354-0
277.1961 -42.1918 2.9 26.2 64.2 6.4393 4.0 ------ UNKNOWN
Plot creation:
Sun Aug 17 06:49:58 EDT 2014