batgrbproduct Analysis for Trigger=558631

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Jun 20 17:07:43 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger558631/GCN5_download_cron
======================================================================

  Trigger: 00558631      Segment: 000

  BAT Trigger Time: 393387728   [s; MET]
      Trigger Stop: 393388048   [s; MET]
               UTC: 2013-06-20T02:21:57.305180    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 271.804678125872   Dec: -22.2908994395319  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    5.84
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    5.84

  Flight Position:   [ source = BAT ]
    RA: 271.804678125872   Dec: -22.2908994395319  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 271.775860040956   Dec: -22.2963506146552  [deg; J2000]  
        { 18h 07m 06.2s , -22d 17' 46.9" }
         +/- 3.68342811967557 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.11321444308448 [arcmin] (formal 1-sigma fit error)
    SNR: 4.72265985220172
 
  Angular difference between Flight and Ground position is 1.632930 arcmin
 
  Partial Coding Fraction: 0.8125    [ including projection effects ]

  Duration
     T90: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]
     T50: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 320 second)
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.461607   0.412284   0.135657   0.207384
           0.136292   0.121883   0.101317   0.086210 [error]
 Peak      0.461607   0.412284   0.135657   0.207384
           0.136292   0.121883   0.101317   0.086210 [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 1.34e-07 1.65e-07 1.47e-07 2.27e-07 5.25e-07 6.73e-07   erg/cm2
              Error 5.70e-08 5.57e-08 9.09e-08 3.28e-07 2.11e-07 4.10e-07   erg/cm2
Peak flux Power-law 1.38e-02 9.43e-03 4.21e-03 2.61e-03 2.87e-02 3.01e-02   ph/cm2/s
              Error 6.00e-03 3.11e-03 2.51e-03 3.48e-03 9.17e-03 9.73e-03   ph/cm2/s
 
Fluence   Cutoff-PL 1.35e-07 1.65e-07 1.46e-07 3.57e-08 1.57e-10 5.18e-07   erg/cm2
              Error 5.70e-08 9.06e-08 1.07e-07 2.56e-07 4.27e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.39e-02 9.41e-03 1.17e-02 1.11e-03 2.85e-06 2.87e-02   ph/cm2/s
              Error 6.00e-03 3.17e-03 3.11e-03 9.17e-03 1.16e-02 0.00e+00   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    2.163    0.683    -      -           1.77e-04 8.04e-05   55.160 57
CPL  -2.145    0.000      28.5    0.0      1.75e-01 0.00e+00   54.670 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.163    0.683    -      -           1.77e-04 8.04e-05   55.160 57
CPL  -2.145    0.000      28.5    0.0      1.75e-01 0.00e+00   54.670 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  320.000    0.000  320.000
T90   320.000    0.000  320.000
T50   320.000    0.000  320.000
Peak  320.000    0.000  320.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  271.7759 -22.2964 0.0408   16.2  115.7       1.5326     4.7  TRIG_00558631       
------------------------------------------
 
Foreground time interval of the image:
  0.000  78.200 (delta_t =  78.200 [sec])
 80.000 119.810 (delta_t =  39.810 [sec])
121.000 320.000 (delta_t = 199.000 [sec])
Background time interval of the image:

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
Multiple GTIs in the spectrum
tstart tstop
0.000000 78.200000
80.000000 119.810000
121.000000 320.000000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.16318     ( -0.632691   0.732496 )
Norm@50keV  : 1.76919E-04    ( -8.18179e-05   7.88842e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.16 using 59 PHA bins.
# Reduced chi-squared =         0.9677 for     57 degrees of freedom 
# Null hypothesis probability =   5.444088e-01
 
Photon flux (15-150 keV)    in 317 sec: 2.87342E-02 ( -0.00917377  0.00917381 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.24727e-07 ( -2.00882e-07  2.21569e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 78.200000
80.000000 119.810000
121.000000 320.000000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.14461     (     )
Epeak [keV] : 28.5086      ( -28.2983 -28.2983 )
Norm@50keV  : 0.175360    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.67 using 59 PHA bins.
# Reduced chi-squared =         0.9762 for     56 degrees of freedom 
# Null hypothesis probability =   5.254475e-01
 
Photon flux (15-150 keV)    in 317 sec: 2.87313E-02 ( -0.0091792  0.0091639 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.17579e-07 ( -2.87956e-07  2.2422e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 78.200000
80.000000 119.810000
121.000000 320.000000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.50731   ( -4.50731   -4.50731 )
beta        : -2.85645    ( 2.85645   1.07089 )
Epeak [keV] : 25.5421      ( -8.81878 8.5657 )
Norm@50keV   : 14.0819    ( -4.39029   492058 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.87 using 59 PHA bins.
# Reduced chi-squared =         0.9794 for     55 degrees of freedom 
# Null hypothesis probability =   5.178653e-01
 
Photon flux (15-150 keV)    in 317 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]    : 7.28973  (-1.89636  2.69088)
R^2/D10^2   : 4.73406E-02  (-0.0473406   0.118405)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.69 using 59 PHA bins.
# Reduced chi-squared =         0.9595 for     57 degrees of freedom 
# Null hypothesis probability =   5.620797e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.334e-07   7.946e-08
25- 50  1.973e-07   1.217e-07
50-150  3.778e-08   3.238e-08
15-150  3.685e-07   2.303e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 39.1436       (-21.5298      131.118)
Norm        : 0.188253       (-0.0935243     0.205822)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.20 using 59 PHA bins.
# Reduced chi-squared =         0.9684 for     57 degrees of freedom 
# Null hypothesis probability =   5.428943e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.360e-07   7.468e-08
25- 50  1.773e-07   1.103e-07
50-150  1.339e-07   1.117e-07
15-150  4.472e-07   2.727e-07
Double BB
R1^2/D10^2  : 3.36044E-06        (      )
kT2 [keV]   : 6.65041        (-1.71914      2.34145)
R2^2/D10^2  : 6.49629E-02    (-0.0326346   0.0950224)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.66 using 59 PHA bins.
#Fit statistic : Chi-Squared =          51.02 using 59 PHA bins.
#Fit statistic : Chi-Squared =          50.94 using 59 PHA bins.
# Reduced chi-squared =         0.9938 for     55 degrees of freedom 
# Reduced chi-squared =         0.9277 for     55 degrees of freedom 
# Reduced chi-squared =         0.9261 for     55 degrees of freedom 
# Null hypothesis probability =   4.875341e-01
# Null hypothesis probability =   6.272402e-01
# Null hypothesis probability =   6.306135e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.348e-07   8.347e-06
25- 50  1.949e-07   4.818e-05
50-150  4.862e-08   4.176e-04
15-150  3.783e-07   5.345e-04

Peak spectrum fit

Power-law model
Time interval is from  121.000 sec. to  320.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.16318     ( -0.632691   0.732496 )
Norm@50keV  : 1.76919E-04    ( -8.18179e-05   7.88842e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.16 using 59 PHA bins.
# Reduced chi-squared =         0.9677 for     57 degrees of freedom 
# Null hypothesis probability =   5.444088e-01
 
Photon flux (15-150 keV)    in 317 sec: 2.87342E-02 ( -0.00917377  0.00917381 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.24727e-07 ( -2.00882e-07  2.21569e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  121.000 sec. to  320.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.14461     (     )
Epeak [keV] : 28.5086      ( -28.2983 -28.2983 )
Norm@50keV  : 0.175360    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.67 using 59 PHA bins.
# Reduced chi-squared =         0.9762 for     56 degrees of freedom 
# Null hypothesis probability =   5.254475e-01
 
Photon flux (15-150 keV)    in 317 sec: 2.87313E-02 ( -0.0091792  0.0091639 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.17579e-07 ( -2.87956e-07  2.2422e-07 ) ergs/cm2
 
Band function
Time interval is from  121.000 sec. to  320.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.50731   ( -4.50731   -4.50731 )
beta        : -2.85645    ( 2.85645   1.07089 )
Epeak [keV] : 25.5421      ( -8.81878 8.5657 )
Norm@50keV   : 14.0819    ( -4.39029   492058 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.87 using 59 PHA bins.
# Reduced chi-squared =         0.9794 for     55 degrees of freedom 
# Null hypothesis probability =   5.178653e-01
 
Photon flux (15-150 keV)    in 317 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]    : 7.28973  (-1.89636  2.69088)
R^2/D10^2   : 4.73406E-02  (-0.0473406   0.118405)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.69 using 59 PHA bins.
# Reduced chi-squared =         0.9595 for     57 degrees of freedom 
# Null hypothesis probability =   5.620797e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.334e-07   8.353e-08
25- 50  1.973e-07   1.196e-07
50-150  3.778e-08   3.031e-08
15-150  3.685e-07   2.159e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 39.1436       (-21.5298      131.118)
Norm        : 0.188253       (-0.0935243     0.205822)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.20 using 59 PHA bins.
# Reduced chi-squared =         0.9684 for     57 degrees of freedom 
# Null hypothesis probability =   5.428943e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.360e-07   8.083e-08
25- 50  1.773e-07   1.124e-07
50-150  1.339e-07   1.039e-07
15-150  4.472e-07   2.726e-07
Double BB
R1^2/D10^2  : 3.36044E-06        (      )
kT2 [keV]   : 6.65041        (-1.71914      2.34145)
R2^2/D10^2  : 6.49629E-02    (-0.0326346   0.0950224)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.66 using 59 PHA bins.
#Fit statistic : Chi-Squared =          51.02 using 59 PHA bins.
#Fit statistic : Chi-Squared =          50.94 using 59 PHA bins.
# Reduced chi-squared =         0.9938 for     55 degrees of freedom 
# Reduced chi-squared =         0.9277 for     55 degrees of freedom 
# Reduced chi-squared =         0.9261 for     55 degrees of freedom 
# Null hypothesis probability =   4.875341e-01
# Null hypothesis probability =   6.272402e-01
# Null hypothesis probability =   6.306135e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.348e-07   8.332e-06
25- 50  1.949e-07   4.497e-05
50-150  4.862e-08   3.923e-04
15-150  3.783e-07   4.416e-04
Plot creation:
Thu Jun 20 17:27:24 EDT 2013