batgrbproduct analysis for trigger=709765

batgrbproduct Analysis for Trigger=709765

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done using the HEASARC data.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Sep 11 20:50:17 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger709765
======================================================================

  Trigger: 00709765      Segment: 000

  BAT Trigger Time: 493773762.112   [s; MET]
      Trigger Stop: 493773764.16   [s; MET]
               UTC: 2016-08-24T23:22:25.352360    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 80.0777395894866   Dec: 40.040385833891  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.84
     Image Trigger?:     NO
     Rate S/N Ratio:     18.4390889145858  [ if not an image trigger ]
     Image S/N Ratio:    8.84

  Flight Position:   [ source = BAT ]
    RA: 80.0777395894866   Dec: 40.040385833891  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 80.0869025083955   Dec: 40.0389958214833  [deg; J2000]  
        { 05h 20m 20.9s , +40d 02' 20.4" }
         +/- 1.18539004731115 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.495869787561142 [arcmin] (formal 1-sigma fit error)
    SNR: 23.856255128993
 
  Angular difference between Flight and Ground position is 0.429090 arcmin
 
  Partial Coding Fraction: 0.5546875    [ including projection effects ]

  Duration
     T90: 99.3319999575615 +/- 7.8777916000799
        Measured from: 1.34399998188019
                   to: 100.675999939442     [s; relative to TRIGTIME]
     T50: 41.6719999909401 +/- 14.6916827472663
        Measured from: 8.11599999666214
                   to: 49.7879999876022     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 4.88400000333786     
                   to: 5.88400000333786     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.659999966621399     
                   to: 111.576000034809     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.308048   1.487486   1.078640   0.272890
           0.075890   0.078702   0.068235   0.057832 [error]
 Peak      0.048205   0.050028   0.053246   0.025470
           0.008784   0.009820   0.009214   0.007374 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1    Band2    Band3    Band4    Band5    Total      
                       15-25    25-50   50-100  100-350   15-150   15-350   keV
Fluence   Power-law 3.85e-07 6.57e-07 8.57e-07 2.26e-06 2.51e-06 4.16e-06   erg/cm2
              Error 3.88e-08 3.94e-08 6.91e-08 3.96e-07 1.63e-07 4.48e-07   erg/cm2
Peak flux Power-law 3.79e-01 4.29e-01 3.48e-01 4.72e-01 1.33e+00 1.63e+00   ph/cm2/s
              Error 1.24e-01 8.46e-02 7.53e-02 2.20e-01 2.36e-01 3.01e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.86e-07 6.54e-07 8.54e-07 2.41e-06 2.52e-06 4.35e-06   erg/cm2
              Error 4.17e-08 4.83e-08 9.10e-08 -------- 2.04e-07 5.87e-07   erg/cm2
Peak flux Cutoff-PL 3.79e-01 4.29e-01 3.46e-01 5.22e-01 1.34e+00 1.64e+00   ph/cm2/s
              Error -------- 8.56e-02 7.64e-02 -------- 2.89e-01 3.26e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s

 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.618    0.108    -      -           2.40e-03 1.44e-04   65.030 57
CPL   1.617    0.224    10000.0    0.0      2.41e-03 1.42e-04   65.030 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.301    0.320    -      -           1.11e-02 1.96e-03   68.310 57
CPL   1.307    0.323    9999.3    0.0      1.12e-02 8.91e-03   68.320 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the index)
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom

 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 37.376000 sec.
T50 in the 50-300 keV band: 23.744000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  112.236   -0.660  111.576
T90    99.332    1.344  100.676
T50    41.672    8.116   49.788
Peak    1.000    4.884    5.884

Click here for the BAT GCN circular template

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
   80.0869    40.0390   0.0081    31.0893    35.1676         2.3456540     23.856 TRIG_00709765                 
 
Foreground time interval of the image:
 -0.660  28.789 (delta_t =  29.449 [sec])
Background time interval of the image:
-146.811  -0.660 (delta_t = 146.151 [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 2.048000

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 2.048000

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 2.048000

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   -0.660 sec. to  111.576 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.61837     ( -0.107366   0.108129 )
Norm@50keV  : 2.40269E-03    ( -0.000144716   0.000143949 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.03 using 59 PHA bins.
# Reduced chi-squared =          1.141 for     57 degrees of freedom 
# Null hypothesis probability =   2.173815e-01
 
Photon flux (15-150 keV)    in 112.2 sec: 0.310550 ( -0.018474  0.018516 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.51607e-06 ( -1.6231e-07  1.6342e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.660 sec. to  111.576 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.61651     ( -0.31938   0.128461 )
Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
Norm@50keV  : 2.40816E-03    ( -0.000145536   0.000138004 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.03 using 59 PHA bins.
# Reduced chi-squared =          1.161 for     56 degrees of freedom 
# Null hypothesis probability =   1.911067e-01
 
Photon flux (15-150 keV)    in 112.2 sec: 0.311586 ( -0.02318  0.020562 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.52908e-06 ( -2.16678e-07  1.91385e-07 ) ergs/cm2

Band function

Time interval is from   -0.660 sec. to  111.576 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]    : 13.9249  (  )
R^2/D10^2   : 4.29538E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         155.77 using 59 PHA bins.
# Reduced chi-squared =         2.7329 for     57 degrees of freedom 
# Null hypothesis probability =   4.127051e-11
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.975e-07   2.317e-08
25- 50  7.306e-07   5.560e-08
50-150  9.302e-07   1.123e-07
15-150  1.858e-06   1.251e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 178.792       (-48.5786      -178.427)
Norm        : 1.25534       (-0.0790105     0.0890769)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.95 using 59 PHA bins.
# Reduced chi-squared =          1.192 for     57 degrees of freedom 
# Null hypothesis probability =   1.520532e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.555e-07   3.136e-08
25- 50  6.748e-07   1.158e-07
50-150  1.425e-06   5.036e-07
15-150  2.456e-06   6.923e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.49126        (-1.12209      1.29462)
R1^2/D10^2  : 0.474186        (-0.220844      0.486079)
kT2 [keV]   : 27.1625        (-4.92599      8.38956)
R2^2/D10^2  : 3.28289E-03    (-0.00192756   0.00340803)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.44 using 59 PHA bins.
# Reduced chi-squared =          1.226 for     55 degrees of freedom 
# Null hypothesis probability =   1.210860e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.758e-07   7.641e-08
25- 50  6.560e-07   1.078e-07
50-150  1.482e-06   3.857e-07
15-150  2.514e-06   4.668e-07

Peak spectrum fit

Power-law model

Time interval is from    4.884 sec. to    5.884 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30079     ( -0.321238   0.319751 )
Norm@50keV  : 1.11372E-02    ( -0.00196196   0.00195453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.31 using 59 PHA bins.
# Reduced chi-squared =          1.198 for     57 degrees of freedom 
# Null hypothesis probability =   1.451235e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.32891 ( -0.23613  0.23674 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10047e-07 ( -2.18914e-08  2.21556e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    4.884 sec. to    5.884 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30681     ( -0.332326   0.313039 )
Epeak [keV] : 9999.32      ( -9999.36 -9999.36 )
Norm@50keV  : 1.11734E-02    ( -0.00196662   0.015852 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.32 using 59 PHA bins.
# Reduced chi-squared =          1.220 for     56 degrees of freedom 
# Null hypothesis probability =   1.250606e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.33765 ( -0.29727  0.2801 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10632e-07 ( 0  0 ) ergs/cm2

Band function

Time interval is from    4.884 sec. to    5.884 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]    : 17.3856  (-4.02427  5.70674)
R^2/D10^2   : 9.26454E-02  (-0.0562643   0.130949)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.09 using 59 PHA bins.
# Reduced chi-squared =          1.405 for     57 degrees of freedom 
# Null hypothesis probability =   2.353800e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.667e-09   2.255e-09
25- 50  2.552e-08   7.400e-09
50-150  5.546e-08   2.123e-08
15-150  8.665e-08   2.685e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-73.7455      -200)
Norm        : 5.45325       (-0.964184     0.964184)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.75 using 59 PHA bins.
# Reduced chi-squared =          1.241 for     57 degrees of freedom 
# Null hypothesis probability =   1.041224e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.358e-08   7.835e-09
25- 50  2.612e-08   1.504e-08
50-150  5.729e-08   3.218e-08
15-150  9.699e-08   5.570e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.50468        (-2.9488      6.97706)
R1^2/D10^2  : 1.81203        (-1.61547      18.0244)
kT2 [keV]   : 34.5199        (-14.9471      -34.8279)
R2^2/D10^2  : 8.66564E-03    (-0.00764109   0.0145714)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.96 using 59 PHA bins.
# Reduced chi-squared =          1.254 for     55 degrees of freedom 
# Null hypothesis probability =   9.765656e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.281e-08   7.285e-09
25- 50  2.302e-08   1.224e-08
50-150  7.720e-08   4.347e-08
15-150  1.130e-07   5.986e-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: 1.40249     ( -0.111986   0.111592 )
Norm@50keV  : 5.30680E-03    ( -0.000336603   0.00033607 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          83.27 using 59 PHA bins.
# Reduced chi-squared =          1.461 for     57 degrees of freedom 
# Null hypothesis probability =   1.319108e-02
 
Photon flux (15-150 keV)    in 29.45 sec: 0.646649 ( -0.0422904  0.0423305 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.50936e-06 ( -1.05015e-07  1.05543e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.26816     ( -0.434916   0.232254 )
Epeak [keV] : 279.227      ( -279.241 -279.241 )
Norm@50keV  : 6.18957E-03    ( -0.00117807   0.00384625 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.95 using 59 PHA bins.
# Reduced chi-squared =          1.481 for     56 degrees of freedom 
# Null hypothesis probability =   1.114411e-02
 
Photon flux (15-150 keV)    in 29.45 sec: 0.642611 ( -0.043877  0.043332 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49489e-06 ( -1.15423e-07  1.13792e-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)  = 6.57e-07
S(50-100 keV) = 8.57e-07

T90 vs. Hardness ratio plot

T90                                   = 99.3319999575615 sec.
Hardness ratio (energy fluence ratio) = 1.30441

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.13718
Count Ratio (50-100 keV) / (15-25 keV) = 0.824618

Mask shadow pattern

IMX = 4.929225329358100E-01, IMY = -3.473012831761868E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

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:
-146.811400 -0.660000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6168  22.0019    0.7  44.2   14.0   5.1797  17.6    1.2	Crab                          
 52.2664  47.5676    2.9  40.9   67.9   2.5201   3.9 ------	UNKNOWN                       
 64.3524  25.9365    3.9  50.3   37.2   2.2480   3.0 ------	UNKNOWN                       
 76.4071  33.7975    2.4  37.7   32.0   1.2838   4.9 ------	UNKNOWN                       
 87.6230   5.5488    2.4  57.7    0.8   4.0261   4.7 ------	UNKNOWN                       
166.0205  30.0269    2.4  41.4 -107.9   3.7242   4.7 ------	UNKNOWN                       
135.6008  13.9064    2.6  44.7  -60.0   3.3103   4.4 ------	UNKNOWN

Pre-slew background subtracted image of 15-350 keV band

Time interval of the image:
-0.660000 28.788640
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.5586  22.0291    4.3  44.2   14.1   0.3698   2.7    4.2	Crab                          
 80.0869  40.0390    0.5  31.1   35.2   2.3458  23.9 ------	UNKNOWN                       
 82.9711  29.5641    2.3  38.0   20.5   0.5549   5.0 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
79.988590 963.020900
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6318  22.0186    0.2  18.3  -12.2  35.5231  54.7    0.3	Crab                          
 33.2926  40.8534    3.4  35.2  105.2   5.4773   3.4 ------	UNKNOWN                       
 71.7423  -9.3076    3.6  49.9    9.1   5.2735   3.2 ------	UNKNOWN                       
 93.8985 -15.0876    3.2  56.6  -17.7   8.9527   3.6 ------	UNKNOWN                       
101.3657 -15.2987    3.4  58.8  -25.8  15.9096   3.8 ------	UNKNOWN                       
101.6009 -15.3012    4.1  58.8  -26.1  15.8560   3.7 ------	UNKNOWN                       
111.8976  -1.4303    2.5  50.6  -44.7  17.7583   4.6 ------	UNKNOWN

Plot creation:
Sun Sep 11 22:05:09 EDT 2016