batgrbproduct Analysis for Trigger=680457

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Mar 26 09:57:27 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger680457/GCN5_download_cron
======================================================================

  Trigger: 00680457      Segment: 000

  BAT Trigger Time: 480604611.136   [s; MET]
      Trigger Stop: 480604612.16   [s; MET]
               UTC: 2016-03-25T13:16:35.106120    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 292.701782051049   Dec: -0.667679244979147  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.55
     Image Trigger?:     NO
     Rate S/N Ratio:     19.0787840283389  [ if not an image trigger ]
     Image S/N Ratio:    6.55

  Flight Position:   [ source = BAT ]
    RA: 292.701782051049   Dec: -0.667679244979147  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 292.647751981695   Dec: -0.566076138036116  [deg; J2000]  
        { 19h 30m 35.5s , -00d 33' 57.9" }
         +/- 4.10333084368562 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.70720229257086 [arcmin] (formal 1-sigma fit error)
    SNR: 4.04770678421052
 
  Angular difference between Flight and Ground position is 6.904460 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 1.02400004863739 +/- 0.004
        Measured from: 0
                   to: 1.02400004863739     [s; relative to TRIGTIME]
     T50: 1.02400004863739 +/- 0.004
        Measured from: 0
                   to: 1.02400004863739     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 1.02400004863739 second)
        Measured from: 0     
                   to: 1.02400004863739     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 1.02400004863739     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.009519   0.006914   0.017309   0.029081
           0.006390   0.007013   0.006378   0.006929 [error]
 Peak      0.009519   0.006914   0.017309   0.029081
           0.006390   0.007013   0.006378   0.006929 [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 3.83e-10 2.36e-09 1.26e-083.66e-09 3.09e-076.19e-07 4.14e-08 3.24e-076.23e-07   erg/cm2
              Error 1.13e-09 3.24e-09 9.16e-09 4.18e-07 1.69e-08 4.22e-07   erg/cm2
Peak flux Power-law 1.16e-02 3.77e-02 1.01e-012.77e-02 7.99e-011.41e+00 2.76e-011.09e-01 9.48e-011.44e+00   ph/cm2/s
              Error 3.51e-02 5.41e-02 7.46e-02 9.79e-01 2.03e-01 1.01e+00   ph/cm2/s
 
Fluence   Cutoff-PL 5.82e-10 3.01e-09 1.31e-08 2.42e-07 4.11e-08 2.54e-07   erg/cm2
              Error 1.13e-09 3.24e-09 -------- -------- 1.71e-08 6.44e-07   erg/cm2
Peak flux Cutoff-PL 1.57e-02 4.53e-02 1.06e-01 6.96e-01 2.86e-01 8.45e-01   ph/cm2/s
              Error 3.51e-02 5.41e-02 -------- -------- -------- --------   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   -2.090    0.450    -      -           2.09e-04 1.68e-03   55.150 57
CPL   2.497    0.000     140.2    0.0      3.77e-05 0.00e+00   57.730 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -2.090    0.450    -      -           2.09e-04 1.68e-03   55.150 57
CPL   2.497    0.000     140.2    0.0      3.77e-05 0.00e+00   57.730 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    1.024    0.000    1.024
T90     1.024    0.000    1.024
T50     1.024    0.000    1.024
Peak    1.024    0.000    1.024

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  292.6478  -0.5661 0.0475    5.6  146.1       0.0553     4.0  TRIG_00680457       
------------------------------------------
 
Foreground time interval of the image:
  0.000   1.024 (delta_t =   1.024 [sec])
Background time interval of the image:
-60.136 -11.136 (delta_t =  49.000 [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    0.000 sec. to    1.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.08963     ( 0.424044   1.32439 )
Norm@50keV  : 2.08634E-04    ( -0.000211509   0.00314621 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.15 using 59 PHA bins.
# Reduced chi-squared =         0.9675 for     57 degrees of freedom 
# Null hypothesis probability =   5.449057e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.276400 0.108560 ( -0.108613  0.29801 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.13723e-08 ( -1.68663e-08  1.68637e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    1.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.49683     (     )
Epeak [keV] : 140.151      (   )
Norm@50keV  : 3.77008E-05    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.73 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     56 degrees of freedom 
# Null hypothesis probability =   4.110702e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.286132 0.101473 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.11247e-08 ( -1.68515e-08  1.74025e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.111986   ( 0.421146   0.421146 )
beta        : 2.02280    ( -2.76665   -1.99978 )
Epeak [keV] : 9.97815      ( -9.87488 -9.87488 )
Norm@50keV   : 6.39357E-04    ( -0.000637737   58167.1 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.14 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     55 degrees of freedom 
# Null hypothesis probability =   4.694560e-01
 
Photon flux (15-150 keV)    in 1.024 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]    : 197.431  (-197.413  -197.413)
R^2/D10^2   : 1.47899E-04  (-6.17482e-05   0.00320583)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.89 using 59 PHA bins.
# Reduced chi-squared =         0.9805 for     57 degrees of freedom 
# Null hypothesis probability =   5.167386e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.919e-10   7.270e-11
25- 50  1.629e-09   6.554e-10
50-150  3.959e-08   1.325e-08
15-150  4.141e-08   1.348e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-199.363      -199.363)
Norm        : 1.14028       (-0.607505     0.607515)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.47 using 59 PHA bins.
# Reduced chi-squared =          1.096 for     57 degrees of freedom 
# Null hypothesis probability =   2.881891e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.908e-09   2.096e-09
25- 50  5.593e-09   3.954e-09
50-150  1.227e-08   8.724e-09
15-150  2.077e-08   1.470e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.28162        (-5.28035      1.98041)
R1^2/D10^2  : 0.759477        (-0.759835      779.477)
kT2 [keV]   : 197.121        (-197.274      -197.274)
R2^2/D10^2  : 1.42455E-04    (-6.1716e-05   0.00202904)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.72 using 59 PHA bins.
# Reduced chi-squared =         0.9767 for     55 degrees of freedom 
# Null hypothesis probability =   5.236164e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.528e-09   1.745e-09
25- 50  3.314e-09   1.661e-09
50-150  3.815e-08   1.474e-08
15-150  4.399e-08   1.432e-08

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.08963     ( 0.424044   1.32439 )
Norm@50keV  : 2.08634E-04    ( -0.000211509   0.00314621 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.15 using 59 PHA bins.
# Reduced chi-squared =         0.9675 for     57 degrees of freedom 
# Null hypothesis probability =   5.449057e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.276400 0.108560 ( -0.108613  0.29801 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.13723e-08 ( -1.68663e-08  1.68637e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    1.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.49683     (     )
Epeak [keV] : 140.151      (   )
Norm@50keV  : 3.77008E-05    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.73 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     56 degrees of freedom 
# Null hypothesis probability =   4.110702e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.286132 0.101473 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.11247e-08 ( -1.68515e-08  1.74025e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.111986   ( 0.421146   0.421146 )
beta        : 2.02280    ( -2.76665   -1.99978 )
Epeak [keV] : 9.97815      ( -9.87488 -9.87488 )
Norm@50keV   : 6.39357E-04    ( -0.000637737   58167.1 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.14 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     55 degrees of freedom 
# Null hypothesis probability =   4.694560e-01
 
Photon flux (15-150 keV)    in 1.024 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]    : 197.431  (-197.413  -197.413)
R^2/D10^2   : 1.47899E-04  (-6.17482e-05   0.00320583)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.89 using 59 PHA bins.
# Reduced chi-squared =         0.9805 for     57 degrees of freedom 
# Null hypothesis probability =   5.167386e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.919e-10   6.712e-11
25- 50  1.629e-09   5.315e-10
50-150  3.959e-08   1.321e-08
15-150  4.141e-08   1.711e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-199.363      -199.363)
Norm        : 1.14028       (-0.607505     0.607515)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.47 using 59 PHA bins.
# Reduced chi-squared =          1.096 for     57 degrees of freedom 
# Null hypothesis probability =   2.881891e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.908e-09   2.122e-09
25- 50  5.593e-09   3.949e-09
50-150  1.227e-08   8.479e-09
15-150  2.077e-08   1.444e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.28162        (-5.28035      1.97984)
R1^2/D10^2  : 0.759477        (-0.759835      736.598)
kT2 [keV]   : 197.121        (-197.274      -197.274)
R2^2/D10^2  : 1.42455E-04    (-6.1716e-05   0.00202904)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.72 using 59 PHA bins.
# Reduced chi-squared =         0.9767 for     55 degrees of freedom 
# Null hypothesis probability =   5.236164e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.528e-09   1.795e-09
25- 50  3.314e-09   1.652e-09
50-150  3.815e-08   9.103e-09
15-150  4.399e-08   1.294e-08
Plot creation:
Sat Mar 26 10:00:24 EDT 2016