batgrbproduct Analysis for Trigger=456967

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jul 10 20:10:17 EDT 2011
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger456967/GCN5_download_cron
======================================================================

  Trigger: 00456967      Segment: 000

  BAT Trigger Time: 331939966.976   [s; MET]
      Trigger Stop: 331939968   [s; MET]
               UTC: 2011-07-09T21:32:39.835840    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 164.614495443872   Dec: -23.4839881602794  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.39
     Image Trigger?:     NO
     Rate S/N Ratio:     12.4899959967968  [ if not an image trigger ]
     Image S/N Ratio:    7.39

  Flight Position:   [ source = BAT ]
    RA: 164.614495443872   Dec: -23.4839881602794  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 164.667945661216   Dec: -23.4698645026077  [deg; J2000]  
        { 10h 58m 40.3s , -23d 28' 11.5" }
         +/- 1.11725593738325 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.384016247043988 [arcmin] (formal 1-sigma fit error)
    SNR: 25.9614442931039
 
  Angular difference between Flight and Ground position is 3.061171 arcmin
 
  Partial Coding Fraction: 0.578125    [ including projection effects ]

  Duration
     T90: 55.6679999828339 +/- 3.26235494540234
        Measured from: -15.3679999113083
                   to: 40.3000000715256     [s; relative to TRIGTIME]
     T50: 21.8879999518394 +/- 0.961665232528948
        Measured from: 6.35600012540817
                   to: 28.2440000772476     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 13.5879999995232     
                   to: 14.5879999995232     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -27.3600000143051     
                   to: 46.7159999608994     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.979197   4.847427   4.257513   1.245849
           0.069189   0.075230   0.069478   0.056361 [error]
 Peak      0.078505   0.156977   0.140043   0.049358
           0.009312   0.010801   0.010381   0.008094 [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 9.86e-07 2.06e-06 3.36e-06 1.24e-05 9.28e-06 1.88e-05   erg/cm2
              Error 4.40e-08 5.30e-08 7.60e-08 6.71e-07 1.93e-07 6.96e-07   erg/cm2
Peak flux Power-law 8.25e-01 1.05e+00 9.79e-01 1.60e+00 3.40e+00 4.46e+00   ph/cm2/s
              Error 1.21e-01 9.39e-02 8.34e-02 2.90e-01 2.60e-01 3.65e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.59e-07 2.07e-06 3.40e-06 1.10e-05 9.24e-06 1.74e-05   erg/cm2
              Error 5.93e-08 5.46e-08 8.97e-08 1.83e-06 2.05e-07 1.83e-06   erg/cm2
Peak flux Cutoff-PL 7.88e-01 1.07e+00 1.00e+00 1.25e+00 3.37e+00 4.12e+00   ph/cm2/s
              Error 1.43e-01 1.04e-01 9.89e-02 4.99e-01 2.66e-01 6.10e-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    1.292    0.039    -      -           1.27e-02 2.59e-04   44.440 57
CPL   1.196    0.131     497.5    0.0      1.39e-02 1.77e-03   43.230 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.104    0.129    -      -           2.93e-02 2.19e-03   39.880 57
CPL   0.888    0.395     280.5    0.0      3.71e-02 1.79e-02   39.250 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: 51.072000 sec.
T50 in the 50-300 keV band: 20.800000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   74.076  -27.360   46.716
T90    55.668  -15.368   40.300
T50    21.888    6.356   28.244
Peak    1.000   13.588   14.588

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  164.6679 -23.4699 0.0074   28.7  147.2       5.1318    26.0  TRIG_00456967       
------------------------------------------
 
Foreground time interval of the image:
-27.360  10.825 (delta_t =  38.185 [sec])
Background time interval of the image:
-36.875 -27.360 (delta_t =   9.515 [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  -27.360 sec. to   46.716 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29211     ( -0.0385992   0.0384819 )
Norm@50keV  : 1.26582E-02    ( -0.000258723   0.000258396 )
------------------------------------------------------------
# Chi-Squared =          44.44 using 59 PHA bins.
# Reduced chi-squared =         0.7797 for     57 degrees of freedom 
# Null hypothesis probability =   8.872695e-01
 
Photon flux (15-150 keV)    in 74.08 sec: 1.50798 ( -0.0343646  0.0344627 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.2843e-06 ( -1.92933e-07  1.93037e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -27.360 sec. to   46.716 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19640     ( -0.152603   0.11015 )
Epeak [keV] : 497.476      ( -497.546 -497.546 )
Norm@50keV  : 1.39022E-02    ( -0.00136734   0.00217403 )
------------------------------------------------------------
# Chi-Squared =          43.23 using 59 PHA bins.
# Reduced chi-squared =         0.7720 for     56 degrees of freedom 
# Null hypothesis probability =   8.940348e-01
 
Photon flux (15-150 keV)    in 74.08 sec: 1.49698 ( -0.03791  0.03726 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.24333e-06 ( -2.06016e-07  2.04387e-07 ) ergs/cm2
 
Band function
Time interval is from  -27.360 sec. to   46.716 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.532096   ( -0.678265   5.51646 )
beta        : -1.33172    ( -0.0612503   0.0541939 )
Epeak [keV] : 68.2631      ( -35.1723 183.465 )
Norm@50keV   : 3.62644E-02    ( -0.0202711   16.3423 )
------------------------------------------------------------
# Chi-Squared =          40.59 using 59 PHA bins.
# Reduced chi-squared =         0.7380 for     55 degrees of freedom 
# Null hypothesis probability =   9.266740e-01
 
Photon flux (15-150 keV)    in 74.08 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]    : 20.1228  (  )
R^2/D10^2   : 6.41222E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         521.13 using 59 PHA bins.
# Reduced chi-squared =         9.1427 for     57 degrees of freedom 
# Null hypothesis probability =   3.669451e-76
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.699e-07   1.496e-08
25- 50  1.850e-06   5.815e-08
50-150  5.558e-06   1.789e-07
15-150  7.778e-06   1.667e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 6.46545       (     )
------------------------------------------------------------
# Chi-Squared =         213.24 using 59 PHA bins.
# Reduced chi-squared =         3.7411 for     57 degrees of freedom 
# Null hypothesis probability =   6.754692e-20
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.193e-06   6.060e-07
25- 50  2.294e-06   1.160e-06
50-150  5.032e-06   2.549e-06
15-150  8.518e-06   4.311e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.43249        (-0.637879      0.677939)
R1^2/D10^2  : 0.729778        (-0.161007      0.21943)
kT2 [keV]   : 34.0105        (-2.58928      3.26224)
R2^2/D10^2  : 9.48107E-03    (-0.00244229   0.00288231)
------------------------------------------------------------
# Chi-Squared =          38.96 using 59 PHA bins.
# Reduced chi-squared =         0.7084 for     55 degrees of freedom 
# Null hypothesis probability =   9.499465e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.381e-07   6.000e-08
25- 50  2.139e-06   8.593e-08
50-150  6.273e-06   2.808e-07
15-150  9.250e-06   4.000e-07

Peak spectrum fit

Power-law model
Time interval is from   13.588 sec. to   14.588 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10394     ( -0.130055   0.128188 )
Norm@50keV  : 2.92782E-02    ( -0.00219465   0.00219396 )
------------------------------------------------------------
# Chi-Squared =          39.88 using 59 PHA bins.
# Reduced chi-squared =         0.6997 for     57 degrees of freedom 
# Null hypothesis probability =   9.586278e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.39739 ( -0.260025  0.260241 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.0573e-07 ( -2.55316e-08  2.56566e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   13.588 sec. to   14.588 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.888163     ( -0.509403   0.280056 )
Epeak [keV] : 280.498      ( -280.498 -280.498 )
Norm@50keV  : 3.70629E-02    ( -0.0095261   0.0263564 )
------------------------------------------------------------
# Chi-Squared =          39.25 using 59 PHA bins.
# Reduced chi-squared =         0.7010 for     56 degrees of freedom 
# Null hypothesis probability =   9.563786e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.37228 ( -0.26556  0.26547 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.02114e-07 ( -2.7226e-08  2.6964e-08 ) ergs/cm2
 
Band function
Time interval is from   13.588 sec. to   14.588 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.491486   ( -0.00609665   -0.00609665 )
beta        : -1.24023    ( -0.267189   0.200921 )
Epeak [keV] : 53.5402      ( -53.3222 166.026 )
Norm@50keV   : 0.290179    ( -0.303983   420.534 )
------------------------------------------------------------
# Chi-Squared =          37.47 using 59 PHA bins.
# Reduced chi-squared =         0.6813 for     55 degrees of freedom 
# Null hypothesis probability =   9.660571e-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]    : 19.6551  (-2.08735  2.426)
R^2/D10^2   : 0.168783  (-0.0526823   0.0743065)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          75.56 using 59 PHA bins.
# Reduced chi-squared =          1.326 for     57 degrees of freedom 
# Null hypothesis probability =   5.048726e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.266e-08   1.920e-09
25- 50  6.231e-08   7.410e-09
50-150  1.780e-07   2.255e-08
15-150  2.529e-07   2.690e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.996       (      )
Norm        : 13.8221       (-13.8221     -13.8221)
------------------------------------------------------------
# Chi-Squared =          70.76 using 59 PHA bins.
# Reduced chi-squared =          1.241 for     57 degrees of freedom 
# Null hypothesis probability =   1.039797e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.440e-08   1.815e-08
25- 50  6.618e-08   3.470e-08
50-150  1.451e-07   7.670e-08
15-150  2.457e-07   1.291e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.31131        (-1.92962      2.25702)
R1^2/D10^2  : 1.19171        (-0.551491      1.18657)
kT2 [keV]   : 40.4327        (-10.4597      28.146)
R2^2/D10^2  : 1.43266E-02    (-0.0107043   0.0221437)
------------------------------------------------------------
# Chi-Squared =          35.53 using 59 PHA bins.
# Reduced chi-squared =         0.6460 for     55 degrees of freedom 
# Null hypothesis probability =   9.807915e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.345e-08   7.000e-09
25- 50  6.633e-08   1.914e-08
50-150  2.181e-07   9.829e-08
15-150  3.079e-07   1.216e-07
Plot creation:
Sun Jul 10 20:36:35 EDT 2011