batgrbproduct Analysis for Trigger=503926

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Sep 25 02:01:53 EDT 2011
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger503926/GCN5_download_cron
======================================================================

  Trigger: 00503926      Segment: 000

  BAT Trigger Time: 338547808.128   [s; MET]
      Trigger Stop: 338547812.224   [s; MET]
               UTC: 2011-09-24T09:03:20.730380    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 234.748127619422   Dec: -66.3082032318706  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.6
     Image Trigger?:     NO
     Rate S/N Ratio:     14.4913767461894  [ if not an image trigger ]
     Image S/N Ratio:    6.6

  Flight Position:   [ source = BAT ]
    RA: 234.748127619422   Dec: -66.3082032318706  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 234.506395176746   Dec: -66.3065433813978  [deg; J2000]  
        { 15h 38m 01.5s , -66d 18' 23.6" }
         +/- 4.1419548125884 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.79801705877155 [arcmin] (formal 1-sigma fit error)
    SNR: 3.99389315157855
 
  Angular difference between Flight and Ground position is 5.828967 arcmin
 
  Partial Coding Fraction: 0.8828125    [ including projection effects ]

  Duration
     T90: 4.09599995613098 +/- 
        Measured from: 0
                   to: 4.09599995613098     [s; relative to TRIGTIME]
     T50: 4.09599995613098 +/- 
        Measured from: 0
                   to: 4.09599995613098     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 4.09599995613098 second)
        Measured from: 0     
                   to: 4.09599995613098     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 4.09599995613098     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.078376   0.028739   0.010630  -0.005471
           0.014716   0.011849   0.009677   0.008393 [error]
 Peak      0.078376   0.028739   0.010630  -0.005471
           0.014716   0.011849   0.009677   0.008393 [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 2.17e-08 1.52e-08 6.96e-09 4.46e-09 4.60e-08 4.83e-08   erg/cm2
              Error 6.92e-09 6.27e-09 5.94e-09 8.18e-09 1.67e-08 2.03e-08   erg/cm2
Peak flux Power-law 1.77e-01 6.96e-02 1.60e-02 4.43e-03 2.65e-01 2.67e-01   ph/cm2/s
              Error 5.76e-02 2.75e-02 1.32e-02 7.53e-03 7.75e-02 7.83e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.77e-08 7.78e-09 2.80e-12 6.23e-22 3.55e-08 3.55e-08   erg/cm2
              Error 7.85e-09 4.65e-09 2.21e-10 0.00e+00 9.72e-09 9.73e-09   erg/cm2
Peak flux Cutoff-PL 2.20e-01 4.16e-02 8.22e-06 9.55e-16 2.61e-01 2.67e-01   ph/cm2/s
              Error 6.39e-02 2.65e-02 5.66e-04 0.00e+00 7.11e-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    3.123    0.772    -      -           8.81e-04 5.61e-04   60.920 57
CPL  -9.670    0.000      19.7    3.4      2.26e+07 0.00e+00   56.440 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.123    0.772    -      -           8.81e-04 5.61e-04   60.920 57
CPL  -9.670    0.000      19.7    3.4      2.26e+07 0.00e+00   56.440 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    4.096    0.000    4.096
T90     4.096    0.000    4.096
T50     4.096    0.000    4.096
Peak    4.096    0.000    4.096

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  234.5064 -66.3065 0.0481   28.0 -162.4       0.0964     4.0  TRIG_00503926       
------------------------------------------
 
Foreground time interval of the image:
  0.000   4.096 (delta_t =   4.096 [sec])
Background time interval of the image:
-239.128 -16.128 (delta_t = 223.000 [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    0.000 sec. to    4.096 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.12296     ( -0.685295   0.859558 )
Norm@50keV  : 8.80968E-04    ( -0.000505893   0.000616707 )
------------------------------------------------------------
# Chi-Squared =          60.92 using 59 PHA bins.
# Reduced chi-squared =          1.069 for     57 degrees of freedom 
# Null hypothesis probability =   3.367905e-01
 
Photon flux (15-150 keV)    in 4.096 sec: 0.265309 ( -0.0774326  0.077548 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.59952e-08 ( -1.57418e-08  1.76513e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    4.096 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -9.66995     (     )
Epeak [keV] : 19.7169      ( -3.85597 2.86896 )
Norm@50keV  : 2.25978E+07    (     )
------------------------------------------------------------
# Chi-Squared =          56.44 using 59 PHA bins.
# Reduced chi-squared =          1.008 for     56 degrees of freedom 
# Null hypothesis probability =   4.582390e-01
 
Photon flux (15-150 keV)    in 4.096 sec: 0.261119 ( -0.071052  0.071242 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.54865e-08 ( -9.75819e-09  9.68462e-09 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    4.096 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -7.89566   ( 0.606492   4.9579 )
beta        : -3.12287    ( -0.858864   0.684921 )
Epeak [keV] : 22.2179      ( -22.2179 -22.2179 )
Norm@50keV   : 0.119745    ( -0.068761   0.0838162 )
------------------------------------------------------------
# Chi-Squared =          60.92 using 59 PHA bins.
# Reduced chi-squared =          1.108 for     55 degrees of freedom 
# Null hypothesis probability =   2.714281e-01
 
Photon flux (15-150 keV)    in 4.096 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]    : 4.33708  (-0.91237  1.28688)
R^2/D10^2   : 4.63153  (-4.63155   11.2817)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          58.91 using 59 PHA bins.
# Reduced chi-squared =          1.033 for     57 degrees of freedom 
# Null hypothesis probability =   4.056187e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.519e-08   1.479e-08
25- 50  1.139e-08   7.365e-09
50-150  2.213e-10   2.220e-10
15-150  3.681e-08   2.249e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 13.7102       (-5.71472      13.6014)
Norm        : 5.42916       (-1.55866     1.55866)
------------------------------------------------------------
# Chi-Squared =          60.21 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     57 degrees of freedom 
# Null hypothesis probability =   3.604289e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.313e-08   2.818e-08
25- 50  1.439e-08   2.699e-08
50-150  2.102e-09   1.108e-08
15-150  3.963e-08   7.105e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.06128        (-4.06348      1.26765)
R1^2/D10^2  : 6.00006        (-5.9941      18.5639)
kT2 [keV]   : 18.8322        (-18.9605      -18.9605)
R2^2/D10^2  : 2.80986E-03    (-0.00277084   0.0358925)
------------------------------------------------------------
# Chi-Squared =          57.59 using 59 PHA bins.
# Reduced chi-squared =          1.047 for     55 degrees of freedom 
# Null hypothesis probability =   3.795470e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.485e-08   1.465e-08
25- 50  1.291e-08   7.332e-09
50-150  1.013e-08   8.036e-09
15-150  4.789e-08   2.603e-08

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to    4.096 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.12296     ( -0.685295   0.859558 )
Norm@50keV  : 8.80968E-04    ( -0.000505893   0.000616707 )
------------------------------------------------------------
# Chi-Squared =          60.92 using 59 PHA bins.
# Reduced chi-squared =          1.069 for     57 degrees of freedom 
# Null hypothesis probability =   3.367905e-01
 
Photon flux (15-150 keV)    in 4.096 sec: 0.265309 ( -0.0774326  0.077548 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.59952e-08 ( -1.57418e-08  1.76513e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    4.096 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -9.66995     (     )
Epeak [keV] : 19.7169      ( -3.85631 2.86763 )
Norm@50keV  : 2.25978E+07    (     )
------------------------------------------------------------
# Chi-Squared =          56.44 using 59 PHA bins.
# Reduced chi-squared =          1.008 for     56 degrees of freedom 
# Null hypothesis probability =   4.582390e-01
 
Photon flux (15-150 keV)    in 4.096 sec: 0.261119 ( -0.071052  0.071242 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.54865e-08 ( -9.75819e-09  9.68462e-09 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    4.096 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -7.89566   ( 0.606492   4.9579 )
beta        : -3.12287    ( -0.858864   0.684921 )
Epeak [keV] : 22.2179      ( -22.2179 -22.2179 )
Norm@50keV   : 0.119745    ( -0.068761   0.0838162 )
------------------------------------------------------------
# Chi-Squared =          60.92 using 59 PHA bins.
# Reduced chi-squared =          1.108 for     55 degrees of freedom 
# Null hypothesis probability =   2.714281e-01
 
Photon flux (15-150 keV)    in 4.096 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]    : 4.33708  (-0.91237  1.28688)
R^2/D10^2   : 4.63153  (-4.63155   11.2817)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          58.91 using 59 PHA bins.
# Reduced chi-squared =          1.033 for     57 degrees of freedom 
# Null hypothesis probability =   4.056187e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.519e-08   1.496e-08
25- 50  1.139e-08   7.260e-09
50-150  2.213e-10   2.140e-10
15-150  3.681e-08   2.255e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 13.7102       (-5.71472      13.6014)
Norm        : 5.42916       (-1.55866     1.55866)
------------------------------------------------------------
# Chi-Squared =          60.21 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     57 degrees of freedom 
# Null hypothesis probability =   3.604289e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.313e-08   2.672e-08
25- 50  1.439e-08   2.465e-08
50-150  2.102e-09   1.160e-08
15-150  3.963e-08   6.376e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.06128        (-4.06348      1.26765)
R1^2/D10^2  : 6.00006        (-5.9941      18.5639)
kT2 [keV]   : 18.8322        (-18.9605      -18.9605)
R2^2/D10^2  : 2.80986E-03    (-0.00277084   0.0252381)
------------------------------------------------------------
# Chi-Squared =          57.59 using 59 PHA bins.
# Reduced chi-squared =          1.047 for     55 degrees of freedom 
# Null hypothesis probability =   3.795470e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.485e-08   1.501e-08
25- 50  1.291e-08   7.346e-09
50-150  1.013e-08   9.628e-09
15-150  4.789e-08   2.757e-08
Plot creation:
Sun Sep 25 02:24:34 EDT 2011