batgrbproduct Analysis for Trigger=556930

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu May 30 00:58:01 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger556930/GCN5_download_cron
======================================================================

  Trigger: 00556930      Segment: 000

  BAT Trigger Time: 391518936   [s; MET]
      Trigger Stop: 391519000   [s; MET]
               UTC: 2013-05-29T11:15:25.388600    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 24.2588443927767   Dec: -64.1383871612738  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.22
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.22

  Flight Position:   [ source = BAT ]
    RA: 24.2588443927767   Dec: -64.1383871612738  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 24.2738547423409   Dec: -64.1429898834676  [deg; J2000]  
        { 01h 37m 05.7s , -64d 08' 34.8" }
         +/- 1.91018237059934 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.733167180736663 [arcmin] (formal 1-sigma fit error)
    SNR: 12.0665441118062
 
  Angular difference between Flight and Ground position is 0.480179 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 128.771999955177 +/- 34.6375724398314
        Measured from: 8.67200011014938
                   to: 137.444000065327     [s; relative to TRIGTIME]
     T50: 32.6519999504089 +/- 15.2295703162733
        Measured from: 55.0600001215935
                   to: 87.7120000720024     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 64.2760000228882     
                   to: 65.2760000228882     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.0159999728203     
                   to: 150.620000004768     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.768335   0.852290   0.680629   0.200765
           0.072144   0.074589   0.066275   0.058305 [error]
 Peak      0.017462   0.022846   0.016770   0.006436
           0.005871   0.006187   0.005465   0.004873 [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 1.98e-07 3.52e-07 4.79e-07 1.35e-06 1.39e-06 2.38e-06   erg/cm2
              Error 2.93e-08 3.24e-08 6.38e-08 3.79e-07 1.51e-07 4.34e-07   erg/cm2
Peak flux Power-law 1.41e-01 1.52e-01 1.16e-01 1.45e-01 4.63e-01 5.53e-01   ph/cm2/s
              Error 6.75e-02 4.61e-02 4.32e-02 1.14e-01 1.33e-01 1.69e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.95e-07 3.59e-07 4.81e-07 1.02e-06 1.36e-06 2.06e-06   erg/cm2
              Error 2.47e-08 3.98e-08 6.58e-08 6.77e-07 1.72e-07 6.94e-07   erg/cm2
Peak flux Cutoff-PL 1.37e-01 1.56e-01 1.17e-01 1.04e-01 4.59e-01 5.14e-01   ph/cm2/s
              Error 7.18e-02 5.71e-02 4.83e-02 9.71e-02 1.36e-01 1.93e-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    1.556    0.166    -      -           8.90e-04 8.74e-05   50.730 57
CPL   1.403    0.490     182.1    0.0      1.07e-03 8.70e-04   50.550 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.387    0.512    -      -           3.81e-03 1.14e-03   67.620 57
CPL   1.160    2.147     168.5    0.0      5.09e-03 1.16e-01   67.570 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: 52.736000 sec.
T50 in the 50-300 keV band: 21.760000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  165.636  -15.016  150.620
T90   128.772    8.672  137.444
T50    32.652   55.060   87.712
Peak    1.000   64.276   65.276

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   24.2739 -64.1430 0.0159    9.5 -127.0       1.4028    12.1  TRIG_00556930       
------------------------------------------
 
Foreground time interval of the image:
-15.016  71.401 (delta_t =  86.417 [sec])
Background time interval of the image:
-239.000 -15.016 (delta_t = 223.984 [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  -15.016 sec. to  150.620 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.55559     ( -0.164277   0.166885 )
Norm@50keV  : 8.89733E-04    ( -8.78864e-05   8.68276e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.73 using 59 PHA bins.
# Reduced chi-squared =         0.8900 for     57 degrees of freedom 
# Null hypothesis probability =   7.078570e-01
 
Photon flux (15-150 keV)    in 165.6 sec: 0.112818 ( -0.0102716  0.0102752 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.38597e-06 ( -1.5002e-07  1.52398e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -15.016 sec. to  150.620 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40335     ( -0.670815   0.308823 )
Epeak [keV] : 182.124      ( -182.161 -182.161 )
Norm@50keV  : 1.07452E-03    ( -0.000395313   0.00134488 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.55 using 59 PHA bins.
# Reduced chi-squared =         0.9026 for     56 degrees of freedom 
# Null hypothesis probability =   6.806079e-01
 
Photon flux (15-150 keV)    in 165.6 sec: 0.112021 ( -0.010748  0.0107 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.36382e-06 ( -1.74935e-07  1.69535e-07 ) ergs/cm2
 
Band function
Time interval is from  -15.016 sec. to  150.620 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.62632   ( -4.62632   -4.62632 )
beta        : -1.65605    ( -0.207101   0.190553 )
Epeak [keV] : 24.3006      ( -7.77621 4.37301 )
Norm@50keV   : 62.6982    ( -5.65748   557541 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.85 using 59 PHA bins.
# Reduced chi-squared =         0.8882 for     55 degrees of freedom 
# Null hypothesis probability =   7.073340e-01
 
Photon flux (15-150 keV)    in 165.6 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]    : 13.4215  (-1.65042  1.91365)
R^2/D10^2   : 1.83463E-02  (-0.00685087   0.0109011)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.21 using 59 PHA bins.
# Reduced chi-squared =          1.425 for     57 degrees of freedom 
# Null hypothesis probability =   1.927839e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.160e-07   2.166e-08
25- 50  4.131e-07   4.827e-08
50-150  4.791e-07   1.013e-07
15-150  1.008e-06   1.139e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 197.571       (-80.305      -197.288)
Norm        : 0.458938       (-0.0418949     0.0465353)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.66 using 59 PHA bins.
# Reduced chi-squared =         0.8888 for     57 degrees of freedom 
# Null hypothesis probability =   7.103298e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.895e-07   1.042e-07
25- 50  3.641e-07   1.941e-07
50-150  7.961e-07   4.151e-07
15-150  1.350e-06   6.732e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.07964        (-1.39873      1.8126)
R1^2/D10^2  : 0.202825        (-0.118666      0.331601)
kT2 [keV]   : 24.0600        (-5.35918      11.2502)
R2^2/D10^2  : 1.90097E-03    (-0.00138135   0.00214223)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.18 using 59 PHA bins.
# Reduced chi-squared =         0.8942 for     55 degrees of freedom 
# Null hypothesis probability =   6.954062e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.004e-07   8.739e-08
25- 50  3.520e-07   1.216e-07
50-150  7.910e-07   4.045e-07
15-150  1.343e-06   4.975e-07

Peak spectrum fit

Power-law model
Time interval is from   64.276 sec. to   65.276 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.38682     ( -0.513729   0.511241 )
Norm@50keV  : 3.81291E-03    ( -0.00114694   0.00112466 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.62 using 59 PHA bins.
# Reduced chi-squared =          1.186 for     57 degrees of freedom 
# Null hypothesis probability =   1.586454e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.462973 ( -0.133074  0.133198 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.69432e-08 ( -1.21858e-08  1.27527e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   64.276 sec. to   65.276 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15952     ( -2.80302   1.49028 )
Epeak [keV] : 168.452      ( -169.395 -169.395 )
Norm@50keV  : 5.08788E-03    ( -0.00240047   0.229277 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.57 using 59 PHA bins.
# Reduced chi-squared =          1.207 for     56 degrees of freedom 
# Null hypothesis probability =   1.383655e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.458901 ( -0.13703  0.135931 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.59507e-08 ( -1.48632e-08  1.35542e-08 ) ergs/cm2
 
Band function
Time interval is from   64.276 sec. to   65.276 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95305   ( -4.95305   -4.95305 )
beta        : -1.73984    ( -1.01781   0.663181 )
Epeak [keV] : 29.2156      ( -29.2156 34.5612 )
Norm@50keV   : 152.231    ( -42.3367   1.89371e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.70 using 59 PHA bins.
# Reduced chi-squared =          1.195 for     55 degrees of freedom 
# Null hypothesis probability =   1.530499e-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]    : 12.6510  (-4.10471  7.96821)
R^2/D10^2   : 9.53462E-02  (-0.0948266   0.288228)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.26 using 59 PHA bins.
# Reduced chi-squared =          1.233 for     57 degrees of freedom 
# Null hypothesis probability =   1.116212e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.236e-09   2.052e-09
25- 50  1.082e-08   6.635e-09
50-150  1.077e-08   7.783e-09
15-150  2.482e-08   1.567e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.358       (-199.363      -199.363)
Norm        : 1.89548       (-0.543193     0.543677)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.76 using 59 PHA bins.
# Reduced chi-squared =          1.189 for     57 degrees of freedom 
# Null hypothesis probability =   1.557692e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.720e-09   2.906e-09
25- 50  9.079e-09   5.515e-09
50-150  1.991e-08   1.198e-08
15-150  3.371e-08   2.059e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.42782        (-3.80642      5.46513)
R1^2/D10^2  : 0.316592        (-0.256615      1.85867)
kT2 [keV]   : 50.4991        (-35.0284      -50.491)
R2^2/D10^2  : 8.72406E-04    (-0.000848194   0.037652)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.10 using 59 PHA bins.
# Reduced chi-squared =          1.202 for     55 degrees of freedom 
# Null hypothesis probability =   1.451600e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.456e-09   2.777e-09
25- 50  9.805e-09   5.810e-09
50-150  2.405e-08   1.324e-08
15-150  3.831e-08   1.883e-08
Plot creation:
Thu May 30 01:11:34 EDT 2013