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
  170.1286    24.9270   0.0098    14.4701   167.3957         0.5726498     19.552 TRIG_00826428                 
 
Foreground time interval of the image:
  0.096   7.168 (delta_t =   7.072 [sec])
Background time interval of the image:
-238.816   0.096 (delta_t = 238.912 [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 
 
 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) 
 
 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    0.096 sec. to    7.168 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.35790     ( -0.142475   0.142761 )
Norm@50keV  : 4.95128E-03    ( -0.000428222   0.000427196 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.17 using 59 PHA bins.
# Reduced chi-squared =          1.091 for     57 degrees of freedom 
# Null hypothesis probability =   2.972892e-01
 
Photon flux (15-150 keV)    in 7.072 sec: 0.597474 ( -0.05141  0.051453 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.41431e-07 ( -3.29397e-08  3.33028e-08 ) ergs/cm2
 
Cutoff power-law model
 
Time interval is from    0.096 sec. to    7.168 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.343053     ( -0.802183   0.676202 )
Epeak [keV] : 79.6850      ( -16.8081 61.9121 )
Norm@50keV  : 1.64226E-02    ( -0.00891734   0.0252565 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.16 using 59 PHA bins.
# Reduced chi-squared =         0.9850 for     56 degrees of freedom 
# Null hypothesis probability =   5.065749e-01
 
Photon flux (15-150 keV)    in 7.072 sec: 0.572963 ( -0.054105  0.053972 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.12912e-07 ( -3.74623e-08  3.82458e-08 ) ergs/cm2
 
Band function
 
Time interval is from    0.096 sec. to    7.168 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.32716E-03   ( -0.895717   -0.0187777 )
beta        : -1.97665    ( 1.9742   0.516076 )
Epeak [keV] : 66.3725      ( -32.0621 47.21 )
Norm@50keV   : 2.65544E-02    ( -0.0298881   37.9082 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.93 using 59 PHA bins.
# Reduced chi-squared =         0.9805 for     55 degrees of freedom 
# Null hypothesis probability =   5.155915e-01
 
Photon flux (15-150 keV)    in 7.072 sec: 0.573209 ( -0.053441  0.053406 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.1837e-07 ( -3.7431e-08  3.84606e-08 ) ergs/cm2
 
Single BB
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.3010  (-1.44532  1.63888)
R^2/D10^2   : 6.67661E-02  (-0.0198773   0.0274116)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.59 using 59 PHA bins.
# Reduced chi-squared =          1.168 for     57 degrees of freedom 
# Null hypothesis probability =   1.803176e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.306e-08   3.692e-09
25- 50  9.332e-08   9.653e-09
50-150  1.500e-07   2.458e-08
15-150  2.664e-07   2.967e-08
Thermal bremsstrahlung (OTTB)
 
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-35.4379      -200)
Norm        : 2.46521       (-0.209662     0.209662)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.17 using 59 PHA bins.
# Reduced chi-squared =          1.108 for     57 degrees of freedom 
# Null hypothesis probability =   2.675214e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.341e-08   5.633e-09
25- 50  8.350e-08   1.529e-08
50-150  1.831e-07   8.296e-08
15-150  3.100e-07   9.505e-08
Double BB
 
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 44.6545        (-4.63957      3.73757)
R1^2/D10^2  : 1.09304E-03        (-0.0985203      0.551247)
kT2 [keV]   : 11.3108        (-5.49416      2.78897)
R2^2/D10^2  : 0.145086    (-0.0671274   0.555565)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.55 using 59 PHA bins.
#Fit statistic : Chi-Squared =          54.45 using 59 PHA bins.
# Reduced chi-squared =         0.9919 for     55 degrees of freedom 
# Reduced chi-squared =         0.9901 for     55 degrees of freedom 
# Null hypothesis probability =   4.916418e-01
# Null hypothesis probability =   4.954164e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.049e-08   1.116e-08
25- 50  9.235e-08   3.731e-08
50-150  1.978e-07   9.900e-08
15-150  3.206e-07   1.458e-07
Peak spectrum fit
Power-law model
 
Time interval is from    0.236 sec. to    1.236 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40810     ( -0.106841   0.107329 )
Norm@50keV  : 2.47880E-02    ( -0.0015341   0.00152981 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.84 using 59 PHA bins.
# Reduced chi-squared =          1.067 for     57 degrees of freedom 
# Null hypothesis probability =   3.395533e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.02436 ( -0.18601  0.18618 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.39155e-07 ( -1.65679e-08  1.668e-08 ) ergs/cm2
 
Cutoff power-law model
 
Time interval is from    0.236 sec. to    1.236 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40509     ( -0.374541   0.161177 )
Epeak [keV] : 9996.82      ( -9996.71 -9996.71 )
Norm@50keV  : 2.48765E-02    ( -0.00152908   0.0156944 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.84 using 59 PHA bins.
# Reduced chi-squared =          1.086 for     56 degrees of freedom 
# Null hypothesis probability =   3.060837e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.02263 ( -0.19223  0.18788 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.38864e-07 ( -1.82668e-08  1.69534e-08 ) ergs/cm2
 
Band function
 
Time interval is from    0.236 sec. to    1.236 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.667762   ( 0.764112   5.76297 )
beta        : -1.51999    ( -0.245351   0.184245 )
Epeak [keV] : 65.8917      ( -65.8917 249.081 )
Norm@50keV   : 6.95979E-02    ( -0.0695979   2.15725e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.40 using 59 PHA bins.
# Reduced chi-squared =          1.080 for     55 degrees of freedom 
# Null hypothesis probability =   3.182885e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.94041 ( -0.13235  0.24846 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.39155e-07 ( -1.65679e-08  1.668e-08 ) ergs/cm2
 
Single BB
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.7829  (  )
R^2/D10^2   : 0.363518  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         129.10 using 59 PHA bins.
# Reduced chi-squared =         2.2650 for     57 degrees of freedom 
# Null hypothesis probability =   1.631690e-07
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.667e-08   1.910e-09
25- 50  6.534e-08   5.110e-09
50-150  9.655e-08   1.280e-08
15-150  1.786e-07   1.330e-08
Thermal bremsstrahlung (OTTB)
 
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-23.0663      -200)
Norm        : 12.4275       (-0.753736     0.753736)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.65 using 59 PHA bins.
# Reduced chi-squared =          1.169 for     57 degrees of freedom 
# Null hypothesis probability =   1.790314e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.095e-08   2.115e-09
25- 50  5.953e-08   4.520e-09
50-150  1.306e-07   2.893e-08
15-150  2.211e-07   3.920e-08
Double BB
 
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.31436        (-1.41597      1.44518)
R1^2/D10^2  : 1.36785        (-0.485185      0.885711)
kT2 [keV]   : 49.6352        (-16.6488      71.9034)
R2^2/D10^2  : 5.55810E-03    (-0.00442022   0.0126784)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.26 using 59 PHA bins.
# Reduced chi-squared =          1.041 for     55 degrees of freedom 
# Null hypothesis probability =   3.913296e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.500e-08   4.280e-09
25- 50  6.349e-08   9.295e-09
50-150  1.539e-07   6.654e-08
15-150  2.424e-07   7.371e-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: 1.35790     ( -0.142475   0.142761 )
Norm@50keV  : 4.95128E-03    ( -0.000428222   0.000427196 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.17 using 59 PHA bins.
# Reduced chi-squared =          1.091 for     57 degrees of freedom 
# Null hypothesis probability =   2.972892e-01
 
Photon flux (15-150 keV)    in 7.072 sec: 0.597465 ( -0.0514083  0.0514502 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.41389e-07 ( -3.29886e-08  3.33049e-08 ) ergs/cm2
 
Cutoff power-law model
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.343032     ( -0.802178   0.676207 )
Epeak [keV] : 79.6842      ( -16.808 61.9121 )
Norm@50keV  : 1.64231E-02    ( -0.00891736   0.0252565 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.16 using 59 PHA bins.
# Reduced chi-squared =         0.9850 for     56 degrees of freedom 
# Null hypothesis probability =   5.065749e-01
 
Photon flux (15-150 keV)    in 7.072 sec: 0.572920 ( -0.054096  0.054025 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.13031e-07 ( -3.7495e-08  3.82765e-08 ) ergs/cm2
 
Band function
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.32716E-03   ( -0.895717   -0.0187777 )
beta        : -1.97665    ( 1.9742   0.516076 )
Epeak [keV] : 66.3725      ( -32.0621 47.21 )
Norm@50keV   : 2.65544E-02    ( -0.0298881   37.9082 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.93 using 59 PHA bins.
# Reduced chi-squared =         0.9805 for     55 degrees of freedom 
# Null hypothesis probability =   5.155915e-01
 
Photon flux (15-150 keV)    in 7.072 sec: 0.573209 ( -0.053441  0.053406 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.1837e-07 ( -3.7431e-08  3.84606e-08 ) ergs/cm2
 
 S(25-50 keV) vs. S(50-100 keV) plot 
 
S(25-50 keV)  = 7.85e-08
S(50-100 keV) = 1.22e-07
 T90 vs. Hardness ratio plot 
 
T90                                   = 4.40799999237061 sec.
Hardness ratio (energy fluence ratio) = 1.55414
 Color vs. Color plot 
 
Count Ratio  (25-50 keV) / (15-25 keV) = 1.75922
Count Ratio (50-100 keV) / (15-25 keV) = 1.33671
 Mask shadow pattern 
 
IMX = -2.518425959351169E-01, IMY = -5.631317706837238E-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:
-238.816000 0.096000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.5044  35.4151    7.1  57.2   -5.0  -1.4757  -1.6    4.9	Her X-1                       
191.0885  16.4902    3.0  18.0   85.3   0.7999   3.9 ------	UNKNOWN                       
134.2644   0.3504    3.3  56.8  173.9   4.6709   3.5 ------	UNKNOWN                       
127.7262   8.2839    2.8  57.2 -173.8   5.0046   4.2 ------	UNKNOWN                       
124.8780  26.4324    2.6  50.9 -152.5   2.7407   4.5 ------	UNKNOWN                       
171.7109  72.7484    3.3  40.0  -76.8   3.0193   3.5 ------	UNKNOWN                       
133.8516  58.5737    2.9  41.6 -108.3   3.4717   4.1 ------	UNKNOWN                       
122.3030  44.2015    3.0  48.1 -129.2   3.9731   3.9 ------	UNKNOWN                       
 Pre-slew background subtracted image of 15-350 keV band 
Time interval of the image:
0.096000 7.168000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.3737  35.2865   14.0  57.1   -4.9  -0.1122  -0.8    5.3	Her X-1                       
198.9368  17.6143    2.3  20.7   63.7   0.1661   5.1 ------	UNKNOWN                       
247.2324  22.8140    2.2  56.2   11.8   0.9273   5.3 ------	UNKNOWN                       
170.1286  24.9271    0.6  14.5  167.4   0.5725  19.5 ------	UNKNOWN                       
153.0066  35.3017    2.3  25.4 -147.9   0.1572   4.9 ------	UNKNOWN                       
 Post-slew image of 15-350 keV band 
Time interval of the image:
272.084600 963.276800
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
244.9705 -15.6366    0.7  25.0   95.8  22.5001  16.2    0.6	Sco X-1                       
254.4896  35.3542   49.3  55.6  167.9  -1.2725  -0.2    1.7	Her X-1                       
256.0230 -37.8131    2.6  23.7   34.7   4.7663   4.4    2.5	4U 1700-377                   
256.6137 -36.3063   17.2  22.2   36.1   0.6817   0.7   11.1	GX 349+2                      
263.0217 -24.6314    7.1   9.9   51.2   1.4921   1.6    6.9	GX 1+4                        
264.5628 -44.5975    0.0  27.1   14.3   2.5790   2.4   11.7	4U 1735-44                    
268.2156  -1.3128    0.0  17.0  174.7   1.4788   1.5   12.4	SW J1753.5-0127               
270.1184 -25.0662    8.2   7.1   10.6   1.2632   1.4    9.0	GX 5-1                        
270.2307 -25.6985    2.9   7.7    9.3   3.9476   4.3    4.7	GRS 1758-258                  
274.0641 -13.8812    3.5   5.1 -140.0   3.1739   3.3    9.9	GX 17+2                       
275.9108 -30.3773    4.0  13.1  -14.8   2.5744   2.8    1.0	H1820-303                     
285.0311 -24.8137   22.6  14.7  -56.0  -0.5101  -0.5    6.4	HT1900.1-2455                 
288.8058  10.9616    1.9  33.9 -143.2   8.2858   6.2    1.1	GRS 1915+105                  
262.8635 -33.8072    2.4  17.4   27.4   4.4263   4.9    6.5	GX 354-0                      
275.0902   7.1830    0.1  25.6 -166.3  96.4887  93.5 ------	UNKNOWN                       
297.4221 -47.3215    2.3  36.4  -26.4   6.3187   5.1 ------	UNKNOWN                       
319.5309 -45.8613    3.1  48.6  -39.8  14.0591   3.8 ------	UNKNOWN                       
320.4426 -35.8338    2.4  47.0  -53.2  23.4153   4.8 ------	UNKNOWN                       
305.3106  16.1417    3.1  48.1 -129.1  18.7146   3.7 ------	UNKNOWN                       
Plot creation:
Sun May 13 07:46:58 EDT 2018