batgrbproduct Analysis for Trigger=551030

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Mar 14 18:17:41 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger551030/GCN5_download_cron
======================================================================

  Trigger: 00551030      Segment: 000

  BAT Trigger Time: 384945104   [s; MET]
      Trigger Stop: 384945168   [s; MET]
               UTC: 2013-03-14T09:11:33.678560    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 41.38433012623   Dec: -30.2553313620773  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    5.82
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    5.82

  Flight Position:   [ source = BAT ]
    RA: 41.38433012623   Dec: -30.2553313620773  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 41.4135062171963   Dec: -30.2535206895056  [deg; J2000]  
        { 02h 45m 39.2s , -30d 15' 12.7" }
         +/- 4.12058058609098 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.2439626079224 [arcmin] (formal 1-sigma fit error)
    SNR: 4.02352183744273
 
  Angular difference between Flight and Ground position is 1.516030 arcmin
 
  Partial Coding Fraction: 0.2617188    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.345013   0.218836   0.107317  -0.012635
           0.086539   0.089937   0.080571   0.072686 [error]
 Peak      0.345013   0.218836   0.107317  -0.012635
           0.086539   0.089937   0.080571   0.072686 [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-07 1.18e-07 8.39e-08 9.48e-08 3.56e-07 4.14e-07   erg/cm2
              Error 4.92e-08 4.93e-08 6.45e-08 1.56e-07 1.61e-07 2.49e-07   erg/cm2
Peak flux Power-law 6.02e-02 3.39e-02 1.20e-02 5.60e-03 1.09e-01 1.12e-01   ph/cm2/s
              Error 2.58e-02 1.37e-02 8.96e-03 8.52e-03 3.92e-02 4.05e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.14e-07 1.34e-07 6.54e-08 1.14e-08 3.23e-07 3.25e-07   erg/cm2
              Error 5.30e-08 9.97e-08 7.61e-08 9.64e-08 2.53e-07 2.58e-07   erg/cm2
Peak flux Cutoff-PL 5.81e-02 3.85e-02 9.82e-03 9.07e-04 1.07e-01 1.07e-01   ph/cm2/s
              Error 2.77e-02 1.76e-02 1.08e-02 5.67e-03 3.86e-02 3.88e-02   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 5.82e-02 3.79e-02 1.09e-01 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 2.77e-02 3.93e-02 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    2.494    0.784    -      -           5.57e-04 3.23e-04   68.980 57
CPL   1.294    0.000      20.2    0.0      3.38e-03 0.00e+00   68.400 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.494    0.784    -      -           5.57e-04 3.23e-04   68.980 57
CPL   1.294    0.000      20.2    0.0      3.38e-03 0.00e+00   68.400 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   41.4135 -30.2535 0.0480   47.2  -31.9       0.7245     4.0  TRIG_00551030       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [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
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.49402     ( -0.666819   0.90155 )
Norm@50keV  : 5.57417E-04    ( -0.000319154   0.000327171 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.98 using 59 PHA bins.
# Reduced chi-squared =          1.210 for     57 degrees of freedom 
# Null hypothesis probability =   1.327663e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.109102 ( -0.0391419  0.0391864 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.56148e-07 ( -1.51595e-07  1.69631e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29387     (     )
Epeak [keV] : 20.1759      (   )
Norm@50keV  : 3.38326E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.40 using 59 PHA bins.
# Reduced chi-squared =          1.221 for     56 degrees of freedom 
# Null hypothesis probability =   1.236854e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.107253 ( -0.0384131  0.038779 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.23273e-07 ( -3.23273e-07  1.82616e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.97082   ( -7.95479   -4.97082 )
beta        : -3.05856    ( 3.05856   1.00884 )
Epeak [keV] : 21.6773      ( -21.6773 6.80252 )
Norm@50keV   : 387.086    ( -133.138   2.64235e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.23 using 59 PHA bins.
# Reduced chi-squared =          1.222 for     55 degrees of freedom 
# Null hypothesis probability =   1.246831e-01
 
Photon flux (15-150 keV)    in 64 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]    : 6.18727  (-2.21562  4.50611)
R^2/D10^2   : 0.347051  (-0.342739   2.18853)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.52 using 59 PHA bins.
# Reduced chi-squared =          1.220 for     57 degrees of freedom 
# Null hypothesis probability =   1.235682e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.179e-07   7.152e-08
25- 50  1.256e-07   8.483e-08
50-150  1.303e-08   1.107e-08
15-150  2.566e-07   1.574e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 31.0179       (-18.0175      56.8605)
Norm        : 0.865599       (-0.455975     1.32081)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.39 using 59 PHA bins.
# Reduced chi-squared =          1.200 for     57 degrees of freedom 
# Null hypothesis probability =   1.435041e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.146e-07   7.178e-08
25- 50  1.334e-07   8.234e-08
50-150  7.629e-08   6.733e-08
15-150  3.243e-07   2.066e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.43956        (-4.43978      3.86105)
R1^2/D10^2  : 1.10965        (-1.10945      973058)
kT2 [keV]   : 13.9398        (-13.9405      -13.9405)
R2^2/D10^2  : 7.34135E-03    (-0.00733961   0.0416872)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.57 using 59 PHA bins.
# Reduced chi-squared =          1.229 for     55 degrees of freedom 
# Null hypothesis probability =   1.189844e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.240e-07   7.293e-08
25- 50  1.218e-07   6.134e-08
50-150  9.233e-08   7.590e-08
15-150  3.382e-07   1.804e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.49402     ( -0.666819   0.90155 )
Norm@50keV  : 5.57417E-04    ( -0.000319154   0.000327171 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.98 using 59 PHA bins.
# Reduced chi-squared =          1.210 for     57 degrees of freedom 
# Null hypothesis probability =   1.327663e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.109102 ( -0.0391419  0.0391864 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.56148e-07 ( -1.51595e-07  1.69631e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29387     (     )
Epeak [keV] : 20.1759      (   )
Norm@50keV  : 3.38326E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.40 using 59 PHA bins.
# Reduced chi-squared =          1.221 for     56 degrees of freedom 
# Null hypothesis probability =   1.236854e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.107253 ( -0.0384131  0.038779 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.23273e-07 ( -3.23273e-07  1.82616e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.97082   ( -7.95479   -4.97082 )
beta        : -3.05856    ( 3.05856   1.00884 )
Epeak [keV] : 21.6773      ( -21.6773 6.80252 )
Norm@50keV   : 387.086    ( -133.138   2.64235e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.23 using 59 PHA bins.
# Reduced chi-squared =          1.222 for     55 degrees of freedom 
# Null hypothesis probability =   1.246831e-01
 
Photon flux (15-150 keV)    in 64 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]    : 6.18727  (-2.21562  4.50611)
R^2/D10^2   : 0.347051  (-0.342739   2.18853)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.52 using 59 PHA bins.
# Reduced chi-squared =          1.220 for     57 degrees of freedom 
# Null hypothesis probability =   1.235682e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.179e-07   6.979e-08
25- 50  1.256e-07   8.307e-08
50-150  1.303e-08   1.245e-08
15-150  2.566e-07   1.622e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 31.0179       (-18.0175      56.8605)
Norm        : 0.865599       (-0.455975     1.32081)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.39 using 59 PHA bins.
# Reduced chi-squared =          1.200 for     57 degrees of freedom 
# Null hypothesis probability =   1.435041e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.146e-07   7.050e-08
25- 50  1.334e-07   8.061e-08
50-150  7.629e-08   6.707e-08
15-150  3.243e-07   2.134e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.43956        (-4.43978      3.86105)
R1^2/D10^2  : 1.10965        (-1.10945      973058)
kT2 [keV]   : 13.9398        (-13.9405      -13.9405)
R2^2/D10^2  : 7.34135E-03    (-0.00733961   0.0416872)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.57 using 59 PHA bins.
# Reduced chi-squared =          1.229 for     55 degrees of freedom 
# Null hypothesis probability =   1.189844e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.240e-07   7.398e-08
25- 50  1.218e-07   7.085e-08
50-150  9.233e-08   6.992e-08
15-150  3.382e-07   1.853e-07
Plot creation:
Thu Mar 14 18:56:46 EDT 2013