batgrbproduct Analysis for Trigger=711084

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Sep  5 20:51:43 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger711084/batgroup_hand_proc
======================================================================

  Trigger: 00711084      Segment: 000

  BAT Trigger Time: 494767155.2   [s; MET]
      Trigger Stop: 494767156.224   [s; MET]
               UTC: 2016-09-05T11:18:58.384380    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 162.236616675553   Dec: -50.8000612070971  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    16.29
     Image Trigger?:     NO
     Rate S/N Ratio:     42.5910788780937  [ if not an image trigger ]
     Image S/N Ratio:    16.29

  Flight Position:   [ source = BAT ]
    RA: 162.236616675553   Dec: -50.8000612070971  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 162.248850817234   Dec: -50.8025504121035  [deg; J2000]  
        { 10h 48m 59.7s , -50d 48' 09.2" }
         +/- 0.553746205958928 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.160321008022037 [arcmin] (formal 1-sigma fit error)
    SNR: 70.7648008968436
 
  Angular difference between Flight and Ground position is 0.487375 arcmin
 
  Partial Coding Fraction: 0.984375    [ including projection effects ]

  Duration
     T90: 64 +/- 16
        Measured from: -15.1999999880791
                   to: 48.8000000119209     [s; relative to TRIGTIME]
     T50: 16 +/- 16
        Measured from: 0.800000011920929
                   to: 16.8000000119209     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 8.30000001192093     
                   to: 9.30000001192093     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.1999999880791     
                   to: 96.8000000119209     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     4.147272   7.284007   7.467525   2.418210
           0.076806   0.078431   0.073534   0.060211 [error]
 Peak      0.161227   0.272460   0.302114   0.117165
           0.009514   0.011064   0.011553   0.009516 [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 1.17e-06 2.85e-06 5.53e-06 2.64e-05 1.50e-05 3.60e-05   erg/cm2
              Error 4.31e-08 6.14e-08 8.70e-08 1.02e-06 2.30e-07 1.04e-06   erg/cm2
Peak flux Power-law 1.32e+00 1.85e+00 1.93e+00 3.69e+00 6.26e+00 8.78e+00   ph/cm2/s
              Error 1.18e-01 9.83e-02 9.03e-02 3.88e-01 2.67e-01 4.35e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.12e-06 2.85e-06 5.62e-06 2.29e-05 1.49e-05 3.25e-05   erg/cm2
              Error 6.08e-08 6.23e-08 1.14e-07 3.53e-06 2.39e-07 2.60e-06   erg/cm2
Peak flux Cutoff-PL 1.31e+00 1.85e+00 1.93e+00 3.67e+00 6.26e+00 8.76e+00   ph/cm2/s
              Error 1.32e-01 6.92e-02 1.01e-01 7.18e-01 2.66e-01 7.48e-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    1.042    0.029    -      -           1.25e-02 2.05e-04   43.080 57
CPL   0.912    0.120     535.2 2089.1      1.41e-02 1.18e-03   39.670 56
 
The chi2 of BB fit is Chi-Squared Chi-Squared which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.941    0.077    -      -           5.45e-02 2.31e-03   41.760 57
CPL   0.935    0.194    9992.3    0.0      5.48e-02 1.11e-02   41.760 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: 36.992000 sec.
T50 in the 50-300 keV band: 12.096000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  112.000  -15.200   96.800
T90    64.000  -15.200   48.800
T50    16.000    0.800   16.800
Peak    1.000    8.300    9.300

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  162.2489   -50.8026   0.0027     9.3791   -70.6209         8.6705526     70.765 TRIG_00711084                 
 
Foreground time interval of the image:
-15.200  11.701 (delta_t =  26.901 [sec])
Background time interval of the image:
-46.899 -15.200 (delta_t =  31.699 [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  -15.200 sec. to   96.800 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.04219     ( -0.0293155   0.0291806 )
Norm@50keV  : 1.25321E-02    ( -0.000205135   0.000204664 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.08 using 59 PHA bins.
# Reduced chi-squared =         0.7558 for     57 degrees of freedom 
# Null hypothesis probability =   9.137446e-01
 
Photon flux (15-150 keV)    in 112 sec: 1.44659 ( -0.0249758  0.0250348 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49572e-05 ( -2.30255e-07  2.30326e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -15.200 sec. to   96.800 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.912142     ( -0.122924   0.117985 )
Epeak [keV] : 535.206      ( -226.08 3952.16 )
Norm@50keV  : 1.40887E-02    ( -0.000752879   0.00160673 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.67 using 59 PHA bins.
# Reduced chi-squared =         0.7085 for     56 degrees of freedom 
# Null hypothesis probability =   9.515525e-01
 
Photon flux (15-150 keV)    in 112 sec: 1.43349 ( -0.0274  0.02752 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49008e-05 ( -2.38896e-07  2.38224e-07 ) ergs/cm2
 
Band function
Time interval is from  -15.200 sec. to   96.800 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.9999   -4.9999 )
beta        : -1.04581    ( -0.0297723   0.0297696 )
Epeak [keV] : 23.0075      ( -23.0075 5.39574 )
Norm@50keV   : 1403.47    ( -21.0605   1.975e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.77 using 59 PHA bins.
# Reduced chi-squared =         0.7777 for     55 degrees of freedom 
# Null hypothesis probability =   8.850248e-01
 
Photon flux (15-150 keV)    in 112 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]    : 24.1844  (  )
R^2/D10^2   : 3.74569E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         645.99 using 59 PHA bins.
# Reduced chi-squared =         11.333 for     57 degrees of freedom 
# Null hypothesis probability =  1.020487e-100
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.337e-07   1.406e-08
25- 50  2.418e-06   5.768e-08
50-150  1.053e-05   2.369e-07
15-150  1.338e-05   2.072e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 6.40697       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =        1027.53 using 59 PHA bins.
# Reduced chi-squared =        18.0268 for     57 degrees of freedom 
# Null hypothesis probability =  4.856924e-178
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.787e-06   2.968e-08
25- 50  3.437e-06   6.104e-08
50-150  7.538e-06   1.327e-07
15-150  1.276e-05   2.240e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.60097        (-0.762204      0.815825)
R1^2/D10^2  : 0.379299        (-0.0801018      0.108802)
kT2 [keV]   : 38.9332        (-2.76848      3.55778)
R2^2/D10^2  : 7.27841E-03    (-0.00172593   0.00192972)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.87 using 59 PHA bins.
# Reduced chi-squared =         0.9250 for     55 degrees of freedom 
# Null hypothesis probability =   6.329972e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.480e-07   6.625e-08
25- 50  2.941e-06   1.058e-07
50-150  1.102e-05   3.590e-07
15-150  1.491e-05   4.368e-07

Peak spectrum fit

Power-law model
Time interval is from    8.300 sec. to    9.300 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.941251     ( -0.0776353   0.0770051 )
Norm@50keV  : 5.44969E-02    ( -0.00230863   0.00230487 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.76 using 59 PHA bins.
# Reduced chi-squared =         0.7326 for     57 degrees of freedom 
# Null hypothesis probability =   9.351231e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.25960 ( -0.266954  0.267039 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.0206e-07 ( -2.86963e-08  2.88349e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    8.300 sec. to    9.300 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.935041     ( -0.309822   0.0776308 )
Epeak [keV] : 9992.27      ( -9991.24 -9991.24 )
Norm@50keV  : 5.48431E-02    ( -0.00229944   0.0199293 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.76 using 59 PHA bins.
# Reduced chi-squared =         0.7457 for     56 degrees of freedom 
# Null hypothesis probability =   9.216083e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.25770 ( -0.26592  0.26697 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.02175e-07 ( -3.0443e-08  2.8677e-08 ) ergs/cm2
 
Band function
Time interval is from    8.300 sec. to    9.300 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99997   ( -4.99997   -4.99997 )
beta        : -0.952626    ( -0.0797674   0.079697 )
Epeak [keV] : 23.1202      ( -23.1202 5.18081 )
Norm@50keV   : 5449.03    ( -228.199   7.63088e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.43 using 59 PHA bins.
# Reduced chi-squared =         0.7532 for     55 degrees of freedom 
# Null hypothesis probability =   9.121805e-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]    : 22.3260  (  )
R^2/D10^2   : 0.214974  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         136.18 using 59 PHA bins.
# Reduced chi-squared =         2.3891 for     57 degrees of freedom 
# Null hypothesis probability =   1.988081e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.970e-08   1.650e-09
25- 50  1.051e-07   6.695e-09
50-150  3.913e-07   2.700e-08
15-150  5.161e-07   2.815e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 24.7232       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         204.86 using 59 PHA bins.
# Reduced chi-squared =         3.5940 for     57 degrees of freedom 
# Null hypothesis probability =   1.505962e-18
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.156e-08   2.945e-09
25- 50  1.184e-07   5.650e-09
50-150  2.597e-07   1.240e-08
15-150  4.397e-07   2.635e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.8511        (-2.35071      2.5856)
R1^2/D10^2  : 1.23321        (-0.490814      1.10687)
kT2 [keV]   : 52.2723        (-16.111      80.9807)
R2^2/D10^2  : 1.48917E-02    (-0.0105103   0.0168569)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.06 using 59 PHA bins.
# Reduced chi-squared =         0.8375 for     55 degrees of freedom 
# Null hypothesis probability =   7.991572e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.454e-08   5.805e-09
25- 50  1.154e-07   1.882e-08
50-150  4.546e-07   1.792e-07
15-150  6.045e-07   1.968e-07
Plot creation:
Mon Sep  5 21:16:27 EDT 2016