batgrbproduct Analysis for Trigger=557354

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jun  4 21:49:21 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger557354/GCN5_download_cron
======================================================================

  Trigger: 00557354      Segment: 000

  BAT Trigger Time: 392021677.632   [s; MET]
      Trigger Stop: 392021681.728   [s; MET]
               UTC: 2013-06-04T06:54:26.998160    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 250.080442177307   Dec: 68.2100394725204  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.99
     Image Trigger?:     NO
     Rate S/N Ratio:     12.369316876853  [ if not an image trigger ]
     Image S/N Ratio:    7.99

  Flight Position:   [ source = BAT ]
    RA: 250.080442177307   Dec: 68.2100394725204  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 250.16613473816   Dec: 68.2245479852911  [deg; J2000]  
        { 16h 40m 39.9s , +68d 13' 28.4" }
         +/- 1.12423525394676 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.538083510167903 [arcmin] (formal 1-sigma fit error)
    SNR: 25.7315079100638
 
  Angular difference between Flight and Ground position is 2.097171 arcmin
 
  Partial Coding Fraction: 0.8125    [ including projection effects ]

  Duration
     T90: 37.7399999499321 +/- 4.55927186783047
        Measured from: 1.18800008296967
                   to: 38.9280000329018     [s; relative to TRIGTIME]
     T50: 17.5319999456406 +/- 2.4288005734513
        Measured from: 7.78400009870529
                   to: 25.3160000443459     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 14.3919999599457     
                   to: 15.3919999599457     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.444000005722046     
                   to: 43.5799999833107     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.608896   0.861838   0.586896   0.158407
           0.046950   0.048262   0.042884   0.037404 [error]
 Peak      0.018385   0.039422   0.023062   0.017126
           0.007301   0.007316   0.006738   0.005633 [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 1.93e-07 3.52e-07 4.94e-07 1.45e-06 1.42e-06 2.49e-06   erg/cm2
              Error 2.22e-08 2.39e-08 4.24e-08 2.73e-07 1.02e-07 3.03e-07   erg/cm2
Peak flux Power-law 2.13e-01 2.44e-01 2.00e-01 2.76e-01 7.57e-01 9.33e-01   ph/cm2/s
              Error 9.34e-02 6.42e-02 5.39e-02 1.65e-01 1.76e-01 2.19e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.94e-07 3.53e-07 4.93e-07 1.43e-06 1.41e-06 2.47e-06   erg/cm2
              Error 2.27e-08 2.44e-08 4.19e-08 3.76e-07 1.01e-07 4.61e-07   erg/cm2
Peak flux Cutoff-PL 2.18e-01 2.46e-01 1.99e-01 2.68e-01 7.60e-01 9.31e-01   ph/cm2/s
              Error 9.26e-02 6.41e-02 5.41e-02 2.51e-01 1.76e-01 2.44e-01   ph/cm2/s
 
Fluence        Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.512    0.118    -      -           3.40e-03 2.22e-04   48.810 57
CPL   1.516    0.119    9999.4    0.0      3.40e-03 1.60e-03   48.830 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.284    0.423    -      -           6.37e-03 1.43e-03   58.540 57
CPL   2.718    0.000     219.1    0.0      9.57e-04 0.00e+00   58.470 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: 25.472000 sec.
T50 in the 50-300 keV band: 12.736000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   44.024   -0.444   43.580
T90    37.740    1.188   38.928
T50    17.532    7.784   25.316
Peak    1.000   14.392   15.392

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  250.1661 +68.2245 0.0075   30.8 -168.1       2.1953    25.7  TRIG_00557354       
------------------------------------------
 
Foreground time interval of the image:
 -0.444  35.669 (delta_t =  36.113 [sec])
Background time interval of the image:
-239.632 -176.672 (delta_t =  62.960 [sec])
-174.632 -169.582 (delta_t =   5.050 [sec])
-168.632 -168.282 (delta_t =   0.350 [sec])
-166.632 -164.942 (delta_t =   1.690 [sec])
-163.632 -161.443 (delta_t =   2.189 [sec])
-159.632 -159.332 (delta_t =   0.300 [sec])
-158.632 -155.502 (delta_t =   3.130 [sec])
-153.632 -153.582 (delta_t =   0.050 [sec])
-150.632 -149.032 (delta_t =   1.600 [sec])
-119.632 -56.987 (delta_t =  62.645 [sec])
-55.632  -0.444 (delta_t =  55.188 [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   -0.444 sec. to   43.580 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.51246     ( -0.117446   0.117823 )
Norm@50keV  : 3.39709E-03    ( -0.000222081   0.000221328 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.81 using 59 PHA bins.
# Reduced chi-squared =         0.8563 for     57 degrees of freedom 
# Null hypothesis probability =   7.714913e-01
 
Photon flux (15-150 keV)    in 44.02 sec: 0.425526 ( -0.0280728  0.0281366 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.41577e-06 ( -1.01188e-07  1.01828e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.444 sec. to   43.580 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.51627     ( -0.12236   0.11482 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 3.39579E-03    ( -0.00160231   0.00159508 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.83 using 59 PHA bins.
# Reduced chi-squared =         0.8720 for     56 degrees of freedom 
# Null hypothesis probability =   7.404765e-01
 
Photon flux (15-150 keV)    in 44.02 sec: 0.425679 ( -0.028155  0.027816 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.41416e-06 ( -9.90846e-08  1.02258e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.444 sec. to   43.580 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.84232   ( -2.49308   -2.49308 )
beta        : -1.53912    ( -0.139252   0.125909 )
Epeak [keV] : 21.9785      ( -23.8236 91.8333 )
Norm@50keV   : 96.2664    ( -96.2661   2358.45 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.18 using 59 PHA bins.
# Reduced chi-squared =         0.8760 for     55 degrees of freedom 
# Null hypothesis probability =   7.307580e-01
 
Photon flux (15-150 keV)    in 44.02 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]    : 14.3722  (  )
R^2/D10^2   : 5.39862E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         120.29 using 59 PHA bins.
# Reduced chi-squared =         2.1103 for     57 degrees of freedom 
# Null hypothesis probability =   2.016082e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.034e-07   1.369e-08
25- 50  3.946e-07   3.768e-08
50-150  5.438e-07   7.219e-08
15-150  1.042e-06   8.012e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 1.73011       (-0.110679     0.110679)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.38 using 59 PHA bins.
# Reduced chi-squared =         0.9014 for     57 degrees of freedom 
# Null hypothesis probability =   6.850271e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.902e-07   1.411e-08
25- 50  3.658e-07   2.910e-08
50-150  8.023e-07   2.018e-07
15-150  1.358e-06   2.183e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.23507        (-1.31595      1.38775)
R1^2/D10^2  : 0.293588        (-0.117517      0.230799)
kT2 [keV]   : 40.3321        (-11.2798      29.5913)
R2^2/D10^2  : 1.33276E-03    (-0.000998219   0.00238499)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.23 using 59 PHA bins.
# Reduced chi-squared =         0.8587 for     55 degrees of freedom 
# Null hypothesis probability =   7.625077e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.740e-07   3.414e-08
25- 50  3.813e-07   6.810e-08
50-150  8.941e-07   4.179e-07
15-150  1.449e-06   4.560e-07

Peak spectrum fit

Power-law model
Time interval is from   14.392 sec. to   15.392 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28409     ( -0.433627   0.412205 )
Norm@50keV  : 6.36765E-03    ( -0.00142832   0.0014275 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.54 using 59 PHA bins.
# Reduced chi-squared =          1.027 for     57 degrees of freedom 
# Null hypothesis probability =   4.185642e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.757494 ( -0.175553  0.176137 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.31712e-08 ( -1.57123e-08  1.59891e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   14.392 sec. to   15.392 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.71765     (     )
Epeak [keV] : 219.105      (   )
Norm@50keV  : 9.57478E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.47 using 59 PHA bins.
# Reduced chi-squared =          1.044 for     56 degrees of freedom 
# Null hypothesis probability =   3.847989e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.760275 ( -0.177638  0.173423 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.27326e-08 ( -1.53845e-08  1.61297e-08 ) ergs/cm2
 
Band function
Time interval is from   14.392 sec. to   15.392 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.66962   ( -4.66962   -4.66962 )
beta        : -1.60173    ( -0.791306   0.602047 )
Epeak [keV] : 34.9439      ( -34.9439 55.618 )
Norm@50keV   : 51.1250    ( -11.4002   3.1986e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.07 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     55 degrees of freedom 
# Null hypothesis probability =   3.627188e-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]    : 14.0067  (-3.71571  6.66181)
R^2/D10^2   : 0.109333  (-0.080294   0.215724)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.89 using 59 PHA bins.
# Reduced chi-squared =          1.138 for     57 degrees of freedom 
# Null hypothesis probability =   2.209312e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.531e-09   2.181e-09
25- 50  1.686e-08   7.805e-09
50-150  2.178e-08   1.192e-08
15-150  4.317e-08   2.057e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-96.4961      -199.363)
Norm        : 3.13629       (-0.712981     0.713005)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.10 using 59 PHA bins.
# Reduced chi-squared =          1.054 for     57 degrees of freedom 
# Null hypothesis probability =   3.640564e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.810e-09   4.633e-09
25- 50  1.502e-08   8.880e-09
50-150  3.295e-08   1.936e-08
15-150  5.578e-08   3.299e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.70702        (-2.49519      2.2292)
R1^2/D10^2  : 0.327842        (-0.173828      0.30442)
kT2 [keV]   : 200.000        (      )
R2^2/D10^2  : 1.39382E-04    (-5.89487e-05   0.000352041)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.71 using 59 PHA bins.
#Fit statistic : Chi-Squared =          53.65 using 59 PHA bins.
# Reduced chi-squared =         0.9766 for     55 degrees of freedom 
# Reduced chi-squared =         0.9754 for     55 degrees of freedom 
# Null hypothesis probability =   5.238483e-01
# Null hypothesis probability =   5.265149e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.085e-09   3.673e-09
25- 50  1.633e-08   1.027e-08
50-150  4.317e-08   1.782e-08
15-150  6.559e-08   2.220e-08
Plot creation:
Tue Jun  4 22:04:45 EDT 2013