batgrbproduct Analysis for Trigger=457076

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jul 12 17:44:42 EDT 2011
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger457076/GCN5_download_cron
======================================================================

  Trigger: 00457076      Segment: 000

  BAT Trigger Time: 332106304   [s; MET]
      Trigger Stop: 332106368   [s; MET]
               UTC: 2011-07-11T19:44:56.853380    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 344.491076339576   Dec: -65.600127171144  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.04
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.04

  Flight Position:   [ source = BAT ]
    RA: 344.491076339576   Dec: -65.600127171144  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 344.44302658005   Dec: -65.636193837731  [deg; J2000]  
        { 22h 57m 46.3s , -65d 38' 10.3" }
         +/- 3.3021080526503 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.35076717179753 [arcmin] (formal 1-sigma fit error)
    SNR: 5.52062159071785
 
  Angular difference between Flight and Ground position is 2.469683 arcmin
 
  Partial Coding Fraction: 0.609375    [ 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     0.280111   0.288101  -0.038682   0.059658
           0.058708   0.059705   0.052959   0.045927 [error]
 Peak      0.280111   0.288101  -0.038682   0.059658
           0.058708   0.059705   0.052959   0.045927 [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 1.05e-07 9.13e-08 5.42e-08 4.84e-08 2.72e-07 2.99e-07   erg/cm2
              Error 2.98e-08 3.12e-08 3.63e-08 6.78e-08 9.33e-08 1.28e-07   erg/cm2
Peak flux Power-law 5.45e-02 2.65e-02 7.86e-03 2.95e-03 9.05e-02 9.18e-02   ph/cm2/s
              Error 1.57e-02 8.68e-03 5.10e-03 3.89e-03 2.37e-02 2.43e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.05e-07 1.15e-07 1.19e-08 2.44e-11 2.32e-07 2.32e-07   erg/cm2
              Error 3.42e-08 4.44e-08 2.57e-08 4.62e-09 6.55e-08 6.55e-08   erg/cm2
Peak flux Cutoff-PL 5.24e-02 3.44e-02 2.01e-03 2.22e-06 8.88e-02 8.89e-02   ph/cm2/s
              Error 1.79e-02 1.25e-02 3.90e-03 3.59e-04 2.23e-02 2.23e-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 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    2.752    0.609    -      -           3.92e-04 1.97e-04   64.190 57
CPL  -2.555    4.828      25.0   15.3      2.08e+00 0.00e+00   60.130 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.752    0.609    -      -           3.92e-04 1.97e-04   64.190 57
CPL  -2.555    4.828      25.0   15.3      2.08e+00 0.00e+00   60.130 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
  344.4430 -65.6362 0.0349   38.5  -16.1       0.6424     5.5  TRIG_00457076       
------------------------------------------
 
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: 2.75162     ( -0.535454   0.682223 )
Norm@50keV  : 3.91733E-04    ( -0.000189038   0.000205902 )
------------------------------------------------------------
# Chi-Squared =          64.19 using 59 PHA bins.
# Reduced chi-squared =          1.126 for     57 degrees of freedom 
# Null hypothesis probability =   2.392156e-01
 
Photon flux (15-150 keV)    in 64 sec: 9.04974E-02 ( -0.0236242  0.0237284 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.71693e-07 ( -8.79469e-08  9.86464e-08 ) 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: -2.55475     ( -6.80768   2.8487 )
Epeak [keV] : 25.0229      ( -23.9781 6.59726 )
Norm@50keV  : 2.07545    (     )
------------------------------------------------------------
# Chi-Squared =          60.13 using 59 PHA bins.
# Reduced chi-squared =          1.074 for     56 degrees of freedom 
# Null hypothesis probability =   3.286382e-01
 
Photon flux (15-150 keV)    in 64 sec: 8.87741E-02 ( -0.0222024  0.0223599 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.31668e-07 ( -6.2544e-08  6.83949e-08 ) 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       : 1.25305   ( 1.66546   1.66546 )
beta        : -7.29190    ( 5.88034   15.6276 )
Epeak [keV] : 23.9073      ( -3.80813 6.29431 )
Norm@50keV   : 0.253198    ( -0.253225   64.7291 )
------------------------------------------------------------
# Chi-Squared =          60.14 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     55 degrees of freedom 
# Null hypothesis probability =   2.950510e-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]    : 6.26634  (-1.31728  1.53415)
R^2/D10^2   : 0.296169  (-0.181459   0.524495)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          60.06 using 59 PHA bins.
# Reduced chi-squared =          1.054 for     57 degrees of freedom 
# Null hypothesis probability =   3.655156e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.050e-07   6.038e-08
25- 50  1.149e-07   7.021e-08
50-150  1.253e-08   1.062e-08
15-150  2.324e-07   1.371e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 21.2806       (-8.36563      16.196)
Norm        : 1.04439       (-0.458572     0.859892)
------------------------------------------------------------
# Chi-Squared =          61.97 using 59 PHA bins.
# Reduced chi-squared =          1.087 for     57 degrees of freedom 
# Null hypothesis probability =   3.033183e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.091e-07   4.842e-08
25- 50  1.001e-07   5.604e-08
50-150  3.320e-08   2.911e-08
15-150  2.423e-07   1.167e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 199.894        (      )
R1^2/D10^2  : 1.77213E-06        (-1.77213e-06      2.49895e-05)
kT2 [keV]   : 6.20067        (-1.29765      1.54679)
R2^2/D10^2  : 0.307362    (-0.187812   0.560203)
------------------------------------------------------------
# Chi-Squared =          60.06 using 59 PHA bins.
# Chi-Squared =          59.89 using 59 PHA bins.
# Reduced chi-squared =          1.092 for     55 degrees of freedom 
# Reduced chi-squared =          1.089 for     55 degrees of freedom 
# Null hypothesis probability =   2.973831e-01
# Null hypothesis probability =   3.027245e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.054e-07   1.741e-02
25- 50  1.167e-07   1.754e-01
50-150  1.301e-08   3.533e+00
15-150  2.351e-07   3.571e+00

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: 2.75162     ( -0.535454   0.682223 )
Norm@50keV  : 3.91733E-04    ( -0.000189038   0.000205902 )
------------------------------------------------------------
# Chi-Squared =          64.19 using 59 PHA bins.
# Reduced chi-squared =          1.126 for     57 degrees of freedom 
# Null hypothesis probability =   2.392156e-01
 
Photon flux (15-150 keV)    in 64 sec: 9.04974E-02 ( -0.0236242  0.0237284 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.71693e-07 ( -8.79469e-08  9.86464e-08 ) 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: -2.55475     ( -6.80768   2.8487 )
Epeak [keV] : 25.0229      ( -23.9781 6.59726 )
Norm@50keV  : 2.07545    (     )
------------------------------------------------------------
# Chi-Squared =          60.13 using 59 PHA bins.
# Reduced chi-squared =          1.074 for     56 degrees of freedom 
# Null hypothesis probability =   3.286382e-01
 
Photon flux (15-150 keV)    in 64 sec: 8.87741E-02 ( -0.0222024  0.0223599 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.31668e-07 ( -6.2544e-08  6.83949e-08 ) 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       : 1.25305   ( 1.66546   1.66546 )
beta        : -7.29190    ( 5.88034   15.6276 )
Epeak [keV] : 23.9073      ( -3.80813 6.29431 )
Norm@50keV   : 0.253198    ( -0.253225   64.7291 )
------------------------------------------------------------
# Chi-Squared =          60.14 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     55 degrees of freedom 
# Null hypothesis probability =   2.950510e-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]    : 6.26634  (-1.31728  1.53415)
R^2/D10^2   : 0.296169  (-0.181459   0.524495)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          60.06 using 59 PHA bins.
# Reduced chi-squared =          1.054 for     57 degrees of freedom 
# Null hypothesis probability =   3.655156e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.050e-07   6.174e-08
25- 50  1.149e-07   7.014e-08
50-150  1.253e-08   1.009e-08
15-150  2.324e-07   1.405e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 21.2806       (-8.36563      16.196)
Norm        : 1.04439       (-0.458572     0.859892)
------------------------------------------------------------
# Chi-Squared =          61.97 using 59 PHA bins.
# Reduced chi-squared =          1.087 for     57 degrees of freedom 
# Null hypothesis probability =   3.033183e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.091e-07   4.919e-08
25- 50  1.001e-07   5.737e-08
50-150  3.320e-08   2.818e-08
15-150  2.423e-07   1.108e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 199.894        (      )
R1^2/D10^2  : 1.77213E-06        (-1.77213e-06      2.49895e-05)
kT2 [keV]   : 6.20067        (-1.29765      1.54679)
R2^2/D10^2  : 0.307362    (-0.187812   0.560203)
------------------------------------------------------------
# Chi-Squared =          60.06 using 59 PHA bins.
# Chi-Squared =          59.89 using 59 PHA bins.
# Reduced chi-squared =          1.092 for     55 degrees of freedom 
# Reduced chi-squared =          1.089 for     55 degrees of freedom 
# Null hypothesis probability =   2.973831e-01
# Null hypothesis probability =   3.027245e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.054e-07   1.681e-02
25- 50  1.167e-07   1.399e-01
50-150  1.301e-08   4.048e+00
15-150  2.351e-07   3.584e+00
Plot creation:
Tue Jul 12 17:52:17 EDT 2011