batgrbproduct Analysis for Trigger=703176

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jul  6 17:04:36 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger703176/GCN5_download_cron
======================================================================

  Trigger: 00703176      Segment: 000

  BAT Trigger Time: 489445344   [s; MET]
      Trigger Stop: 489445408   [s; MET]
               UTC: 2016-07-05T21:02:07.482980    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 168.085793209721   Dec: 46.7215352735169  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.56
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    10.56

  Flight Position:   [ source = BAT ]
    RA: 168.085793209721   Dec: 46.7215352735169  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 168.107046587336   Dec: 46.706889385126  [deg; J2000]  
        { 11h 12m 25.7s , +46d 42' 24.8" }
         +/- 2.33006486096769 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.897532579869976 [arcmin] (formal 1-sigma fit error)
    SNR: 9.08462356722735
 
  Angular difference between Flight and Ground position is 1.239619 arcmin
 
  Partial Coding Fraction: 0.734375    [ including projection effects ]

  Duration
     T90: 54.3679999709129 +/- 12.4123823520011
        Measured from: -5.0919998884201
                   to: 49.2760000824928     [s; relative to TRIGTIME]
     T50: 28.783999979496 +/- 10.7218206893608
        Measured from: 4.10400009155273
                   to: 32.8880000710487     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 26.0440000295639     
                   to: 27.0440000295639     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.0879999995232     
                   to: 54.6959999799728     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.512633   0.338705   0.353931   0.064406
           0.053330   0.055324   0.048613   0.043547 [error]
 Peak      0.022421   0.013774   0.014995   0.006035
           0.006466   0.006417   0.005698   0.005448 [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 1.32e-07 2.04e-07 2.37e-07 5.28e-07 7.29e-07 1.10e-06   erg/cm2
              Error 2.78e-08 2.59e-08 5.09e-08 2.42e-07 1.14e-07 2.86e-07   erg/cm2
Peak flux Power-law 2.08e-01 1.55e-01 7.69e-02 5.44e-02 4.66e-01 4.95e-01   ph/cm2/s
              Error 1.17e-01 5.58e-02 6.66e-02 9.50e-02 1.57e-01 1.73e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.33e-07 2.05e-07 2.35e-07 5.14e-07 7.26e-07 1.09e-06   erg/cm2
              Error 2.77e-08 2.59e-08 5.04e-08 3.25e-07 1.10e-07 2.97e-07   erg/cm2
Peak flux Cutoff-PL 2.26e-01 1.52e-01 6.63e-02 4.01e-02 4.64e-01 4.83e-01   ph/cm2/s
              Error 1.19e-01 5.69e-02 5.58e-02 9.59e-02 1.57e-01 1.76e-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    1.786    0.267    -      -           1.13e-03 1.71e-04   53.150 57
CPL   3.150    0.801     331.1   98.0      2.69e-04 3.94e-04   49.820 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.007    0.997    -      -           3.09e-03 1.63e-03   63.980 57
CPL   2.128    0.842      52.5    0.0      2.31e-03 0.00e+00   63.380 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: 76.096000 sec.
T50 in the 50-300 keV band: 33.408000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   69.784  -15.088   54.696
T90    54.368   -5.092   49.276
T50    28.784    4.104   32.888
Peak    1.000   26.044   27.044

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  168.1070 +46.7069 0.0212   32.1    9.3       1.0760     9.1  TRIG_00703176       
------------------------------------------
 
Foreground time interval of the image:
-15.088  54.696 (delta_t =  69.784 [sec])
Background time interval of the image:
-239.000 -15.088 (delta_t = 223.912 [sec])

Lightcurves

Notes:

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:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Time interval is from  -15.088 sec. to   54.696 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.78647     ( -0.258412   0.275228 )
Norm@50keV  : 1.13454E-03    ( -0.00017473   0.000166809 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.15 using 59 PHA bins.
# Reduced chi-squared =         0.9325 for     57 degrees of freedom 
# Null hypothesis probability =   6.201979e-01
 
Photon flux (15-150 keV)    in 69.78 sec: 0.155523 ( -0.0199263  0.0199513 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.29187e-07 ( -1.12716e-07  1.14681e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -15.088 sec. to   54.696 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.15012     ( -1.17847   0.423894 )
Epeak [keV] : 331.129      ( -67.5515 128.519 )
Norm@50keV  : 2.69200E-04    ( -0.000271424   0.000516072 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.82 using 59 PHA bins.
# Reduced chi-squared =         0.8896 for     56 degrees of freedom 
# Null hypothesis probability =   7.065998e-01
 
Photon flux (15-150 keV)    in 69.78 sec: 0.155756 ( -0.01975  0.019715 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.26354e-07 ( -1.09123e-07  1.10071e-07 ) ergs/cm2
 
Band function
Time interval is from  -15.088 sec. to   54.696 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.43085   ( 1.43132   1.43132 )
beta        : -1.78403    ( 1.78639   0.258152 )
Epeak [keV] : 18.1728      ( -18.184 -18.184 )
Norm@50keV   : 2.73562E-03    ( -0.00273841   1.08048 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.15 using 59 PHA bins.
# Reduced chi-squared =         0.9664 for     55 degrees of freedom 
# Null hypothesis probability =   5.455380e-01
 
Photon flux (15-150 keV)    in 69.78 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]    : 14.2987  (-3.0575  3.61065)
R^2/D10^2   : 1.85176E-02  (-0.0183122   0.0249296)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          87.68 using 59 PHA bins.
# Reduced chi-squared =          1.538 for     57 degrees of freedom 
# Null hypothesis probability =   5.590867e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.568e-08   1.557e-08
25- 50  2.114e-07   4.424e-08
50-150  2.877e-07   7.822e-08
15-150  5.548e-07   1.119e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 144.960       (-67.8717      -143.428)
Norm        : 0.627062       (-0.0906239     0.133729)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.07 using 59 PHA bins.
# Reduced chi-squared =          1.001 for     57 degrees of freedom 
# Null hypothesis probability =   4.725147e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.127e-07   5.743e-08
25- 50  2.078e-07   1.110e-07
50-150  4.044e-07   2.416e-07
15-150  7.249e-07   4.138e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.94437        (-0.883597      1.11226)
R1^2/D10^2  : 2.37648        (-1.64604      6.68431)
kT2 [keV]   : 24.1592        (-5.26442      8.46854)
R2^2/D10^2  : 2.60664E-03    (-0.00161239   0.00342152)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.55 using 59 PHA bins.
# Reduced chi-squared =         0.8282 for     55 degrees of freedom 
# Null hypothesis probability =   8.143022e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.596e-07   8.062e-08
25- 50  1.535e-07   5.638e-08
50-150  4.553e-07   1.991e-07
15-150  7.684e-07   2.866e-07

Peak spectrum fit

Power-law model
Time interval is from   26.044 sec. to   27.044 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.00717     ( -0.87683   1.11735 )
Norm@50keV  : 3.09493E-03    ( -0.00181024   0.0014559 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.98 using 59 PHA bins.
# Reduced chi-squared =          1.122 for     57 degrees of freedom 
# Null hypothesis probability =   2.449179e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.465801 ( -0.157086  0.157066 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.85002e-08 ( -1.31078e-08  1.42572e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   26.044 sec. to   27.044 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.12804     ( -1.02495   0.659966 )
Epeak [keV] : 52.5232      (   )
Norm@50keV  : 2.31296E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.38 using 59 PHA bins.
# Reduced chi-squared =          1.132 for     56 degrees of freedom 
# Null hypothesis probability =   2.322453e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.464237 ( -0.156883  0.157368 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.79168e-08 ( -1.25525e-08  1.48411e-08 ) ergs/cm2
 
Band function
Time interval is from   26.044 sec. to   27.044 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.99539   ( 9.99539   9.99539 )
beta        : -2.01029    ( -1.11291   0.87874 )
Epeak [keV] : 17.6085      ( -17.6085 -17.6085 )
Norm@50keV   : 0.420054    ( -0.24585   0.198066 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.98 using 59 PHA bins.
# Reduced chi-squared =          1.163 for     55 degrees of freedom 
# Null hypothesis probability =   1.904406e-01
 
Photon flux (15-150 keV)    in 1 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]    : 5.01690  (-1.57862  2.76115)
R^2/D10^2   : 3.34605  (-3.34594   17.2258)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.01 using 59 PHA bins.
# Reduced chi-squared =          1.193 for     57 degrees of freedom 
# Null hypothesis probability =   1.507934e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.248e-09   5.010e-09
25- 50  5.432e-09   3.382e-09
50-150  2.245e-10   2.313e-10
15-150  1.390e-08   8.325e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.546       (-199.546      -199.546)
Norm        : 1.76940       (-0.621002     7.4257)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.82 using 59 PHA bins.
# Reduced chi-squared =          1.155 for     57 degrees of freedom 
# Null hypothesis probability =   1.981393e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.141e-09   3.303e-09
25- 50  8.875e-09   5.440e-09
50-150  1.432e-08   1.147e-08
15-150  2.833e-08   2.032e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.55006        (-1.48493      1.79366)
R1^2/D10^2  : 4.90044        (-3.99963      20.1601)
kT2 [keV]   : 99.8661        (-74.2459      -99.9504)
R2^2/D10^2  : 2.65903E-04    (-0.000219277   0.00582147)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.03 using 59 PHA bins.
# Reduced chi-squared =          1.055 for     55 degrees of freedom 
# Null hypothesis probability =   3.642916e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.208e-09   4.994e-09
25- 50  5.438e-09   3.059e-09
50-150  2.566e-08   2.383e-08
15-150  3.930e-08   2.590e-08
Plot creation:
Wed Jul  6 17:09:36 EDT 2016