batgrbproduct Analysis for Trigger=523489

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jun  4 10:38:34 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger523489/GCN5_download_cron
======================================================================

  Trigger: 00523489      Segment: 000

  BAT Trigger Time: 360439736   [s; MET]
      Trigger Stop: 360440056   [s; MET]
               UTC: 2012-06-03T18:08:47.721700    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 250.460198728634   Dec: -45.5043802794411  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.22
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    6.22

  Flight Position:   [ source = BAT ]
    RA: 250.460198728634   Dec: -45.5043802794411  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 250.479393042647   Dec: -45.5402012680344  [deg; J2000]  
        { 16h 41m 55.1s , -45d 32' 24.7" }
         +/- 4.29174451923086 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.81651751102451 [arcmin] (formal 1-sigma fit error)
    SNR: 3.79625800872383
 
  Angular difference between Flight and Ground position is 2.295732 arcmin
 
  Partial Coding Fraction: 0.828125    [ 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     0.671861   0.462057  -0.002255  -0.000256
           0.124515   0.112111   0.094495   0.083287 [error]
 Peak      0.671861   0.462057  -0.002255  -0.000256
           0.124515   0.112111   0.094495   0.083287 [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 1.86e-07 1.62e-07 9.63e-08 8.62e-08 4.82e-07 5.31e-07   erg/cm2
              Error 5.46e-08 5.46e-08 6.27e-08 1.18e-07 1.63e-07 2.22e-07   erg/cm2
Peak flux Power-law 1.93e-02 9.39e-03 2.79e-03 1.05e-03 3.21e-02 3.25e-02   ph/cm2/s
              Error 5.76e-03 3.04e-03 1.76e-03 1.35e-03 8.57e-03 8.78e-03   ph/cm2/s
 
Fluence   Cutoff-PL 1.84e-07 2.06e-07 1.40e-08 6.65e-12 4.03e-07 0.00e+00   erg/cm2
              Error 6.48e-08 7.84e-08 4.03e-08 4.22e-09 1.14e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.82e-02 1.24e-02 4.83e-04 1.23e-07 3.11e-02 3.11e-02   ph/cm2/s
              Error 6.83e-03 4.45e-03 1.24e-03 6.85e-05 8.17e-03 8.17e-03   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    2.749    0.593    -      -           1.39e-04 6.82e-05   52.010 57
CPL  -3.396    0.789      25.3    9.1      2.95e+00 0.00e+00   46.840 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.749    0.593    -      -           1.39e-04 6.82e-05   52.010 57
CPL  -3.396    0.789      25.3    9.1      2.95e+00 0.00e+00   46.840 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
  250.4794 -45.5402 0.0507   20.7   35.3       1.2909     3.8  TRIG_00523489       
------------------------------------------
 
Foreground time interval of the image:
  0.000 320.000 (delta_t = 320.000 [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  320.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.74878     ( -0.529068   0.656197 )
Norm@50keV  : 1.39096E-04    ( -6.52677e-05   7.1228e-05 )
------------------------------------------------------------
# Chi-Squared =          52.01 using 59 PHA bins.
# Reduced chi-squared =         0.9124 for     57 degrees of freedom 
# Null hypothesis probability =   6.623907e-01
 
Photon flux (15-150 keV)    in 320 sec: 3.20712E-02 ( -0.00855391  0.00858197 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.8176e-07 ( -1.54821e-07  1.72076e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  320.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -3.39558     ( 2.09887   3.67697 )
Epeak [keV] : 25.3292      ( -12.5229 5.68989 )
Norm@50keV  : 2.95065    (     )
------------------------------------------------------------
# Chi-Squared =          46.84 using 59 PHA bins.
# Reduced chi-squared =         0.8365 for     56 degrees of freedom 
# Null hypothesis probability =   8.033555e-01
 
Photon flux (15-150 keV)    in 320 sec: 3.11204E-02 ( -0.0081575  0.0081879 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.03235e-07 ( -1.08692e-07  1.19952e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  320.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.26212   ( -4.26336   -2.77746 )
beta        : -8.83808    ( 6.85623   16.7976 )
Epeak [keV] : 25.2732      ( -4.44668 4.99843 )
Norm@50keV   : 2.37539    ( -2.38804   14.3869 )
------------------------------------------------------------
# Chi-Squared =          46.83 using 59 PHA bins.
# Reduced chi-squared =         0.8514 for     55 degrees of freedom 
# Null hypothesis probability =   7.754535e-01
 
Photon flux (15-150 keV)    in 320 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]    : 6.21362  (-1.25112  1.5136)
R^2/D10^2   : 0.109293  (-0.0674005   0.183084)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          47.02 using 59 PHA bins.
# Reduced chi-squared =         0.8249 for     57 degrees of freedom 
# Null hypothesis probability =   8.243742e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.883e-07   1.092e-07
25- 50  2.025e-07   1.226e-07
50-150  2.136e-08   1.755e-08
15-150  4.122e-07   2.450e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 21.7073       (-8.40144      16.25)
Norm        : 0.364441       (-0.1615     0.317092)
------------------------------------------------------------
# Chi-Squared =          49.36 using 59 PHA bins.
# Reduced chi-squared =         0.8659 for     57 degrees of freedom 
# Null hypothesis probability =   7.541246e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.933e-07   8.493e-08
25- 50  1.799e-07   1.019e-07
50-150  6.163e-08   5.058e-08
15-150  4.348e-07   2.205e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.28963        (-6.26998      85.9291)
R1^2/D10^2  : 7.63934E-02        (-0.0769343      -0.0769343)
kT2 [keV]   : 6.11466        (-6.1583      -6.1583)
R2^2/D10^2  : 3.08597E-02    (-0.0317889   -0.0317889)
------------------------------------------------------------
# Chi-Squared =          47.02 using 59 PHA bins.
# Reduced chi-squared =         0.8550 for     55 degrees of freedom 
# Null hypothesis probability =   7.692675e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.875e-07   3.341e-01
25- 50  2.036e-07   2.819e+00
50-150  2.191e-08   7.187e+01
15-150  4.129e-07   7.038e+01

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to  320.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.74878     ( -0.529068   0.656197 )
Norm@50keV  : 1.39096E-04    ( -6.52677e-05   7.1228e-05 )
------------------------------------------------------------
# Chi-Squared =          52.01 using 59 PHA bins.
# Reduced chi-squared =         0.9124 for     57 degrees of freedom 
# Null hypothesis probability =   6.623907e-01
 
Photon flux (15-150 keV)    in 320 sec: 3.20712E-02 ( -0.00855391  0.00858197 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.8176e-07 ( -1.54821e-07  1.72076e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  320.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -3.39558     ( 2.09887   3.67697 )
Epeak [keV] : 25.3292      ( -12.5229 5.68989 )
Norm@50keV  : 2.95065    (     )
------------------------------------------------------------
# Chi-Squared =          46.84 using 59 PHA bins.
# Reduced chi-squared =         0.8365 for     56 degrees of freedom 
# Null hypothesis probability =   8.033555e-01
 
Photon flux (15-150 keV)    in 320 sec: 3.11204E-02 ( -0.0081575  0.0081879 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.03235e-07 ( -1.08692e-07  1.19952e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  320.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.26212   ( -4.26336   -2.77746 )
beta        : -8.83808    ( 6.85623   16.7976 )
Epeak [keV] : 25.2732      ( -4.44668 4.99843 )
Norm@50keV   : 2.37539    ( -2.38804   14.3869 )
------------------------------------------------------------
# Chi-Squared =          46.83 using 59 PHA bins.
# Reduced chi-squared =         0.8514 for     55 degrees of freedom 
# Null hypothesis probability =   7.754535e-01
 
Photon flux (15-150 keV)    in 320 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]    : 6.21362  (-1.25112  1.5136)
R^2/D10^2   : 0.109293  (-0.0674005   0.183084)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          47.02 using 59 PHA bins.
# Reduced chi-squared =         0.8249 for     57 degrees of freedom 
# Null hypothesis probability =   8.243742e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.883e-07   1.127e-07
25- 50  2.025e-07   1.232e-07
50-150  2.136e-08   1.745e-08
15-150  4.122e-07   2.329e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 21.7073       (-8.40144      16.25)
Norm        : 0.364441       (-0.1615     0.317092)
------------------------------------------------------------
# Chi-Squared =          49.36 using 59 PHA bins.
# Reduced chi-squared =         0.8659 for     57 degrees of freedom 
# Null hypothesis probability =   7.541246e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.933e-07   8.222e-08
25- 50  1.799e-07   1.020e-07
50-150  6.163e-08   5.301e-08
15-150  4.348e-07   2.182e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.28963        (-6.26998      85.9291)
R1^2/D10^2  : 7.63934E-02        (-0.0769343      -0.0769343)
kT2 [keV]   : 6.11466        (-6.1583      -6.1583)
R2^2/D10^2  : 3.08597E-02    (-0.0317889   -0.0317889)
------------------------------------------------------------
# Chi-Squared =          47.02 using 59 PHA bins.
# Reduced chi-squared =         0.8550 for     55 degrees of freedom 
# Null hypothesis probability =   7.692675e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.875e-07   3.158e-01
25- 50  2.036e-07   2.565e+00
50-150  2.191e-08   6.826e+01
15-150  4.129e-07   7.554e+01
Plot creation:
Mon Jun  4 10:59:26 EDT 2012