batgrbproduct Analysis for Trigger=358534

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Tue Jul 28 08:56:08 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger358534/GCN5_download_cron
======================================================================

  Trigger: 00358534      Segment: 000

  BAT Trigger Time: 270441409.24   [s; MET]
      Trigger Stop: 270441409.248   [s; MET]
               UTC: 2009-07-28T02:36:44.291920    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 90.6287692822525   Dec: -69.0871092652265  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.66
     Image Trigger?:     NO
     Rate S/N Ratio:     7.07106781186548  [ if not an image trigger ]
     Image S/N Ratio:    5.66

  Flight Position:   [ source = BAT ]
    RA: 90.6287692822525   Dec: -69.0871092652265  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 90.4885487377137   Dec: -69.085016518929  [deg; J2000]  
        { 06h 01m 57.3s , -69d 05' 06.1" }
         +/- 3.92097279094857 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.53121142308853 [arcmin] (formal 1-sigma fit error)
    SNR: 4.31929543757168
 
  Angular difference between Flight and Ground position is 3.005855 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 0.00800001621246338 +/- 
        Measured from: 0
                   to: 0.00800001621246338     [s; relative to TRIGTIME]
     T50: 0.00800001621246338 +/- 
        Measured from: 0
                   to: 0.00800001621246338     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 0.00800001621246338 second)
        Measured from: 0     
                   to: 0.00800001621246338     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 0.00800001621246338     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.003288   0.000682   0.000325   0.000445
           0.000807   0.000409   0.000348   0.000382 [error]
 Peak      0.003288   0.000682   0.000325   0.000445
           0.000807   0.000409   0.000348   0.000382 [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 6.44e-11 2.72e-11 6.80e-12 2.09e-12 9.96e-11 1.00e-10   erg/cm2
              Error 7.70e-11 2.79e-11 4.49e-11 1.33e-09 1.06e-10 1.06e-10   erg/cm2
Peak flux Power-law 2.74e-01 6.60e-02 8.26e-03 1.15e-03 3.49e-01 3.50e-01   ph/cm2/s
              Error 3.32e-01 6.74e-02 4.68e-02 5.21e-01 3.93e-01 3.93e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.55e-10 4.68e-11 3.23e-13 2.04e-18 2.00e-10 1.96e-10   erg/cm2
              Error 1.45e-10 3.97e-11 1.10e-11 2.10e-13 1.83e-10 1.83e-10   erg/cm2
Peak flux Cutoff-PL 6.21e-01 1.24e-01 5.02e-04 1.89e-09 7.46e-01 7.45e-01   ph/cm2/s
              Error 5.99e-01 1.11e-01 1.18e-02 5.27e-04 6.44e-01 6.45e-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    3.998    0.000    -      -           5.66e-04 1.08e-03   40.530 57
CPL  -4.979    0.000      18.3    0.0      1.50e+04 0.00e+00   37.480 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.998    0.000    -      -           5.66e-04 1.08e-03   40.530 57
CPL  -4.979    0.000      18.3    0.0      1.50e+04 0.00e+00   37.480 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    0.008    0.000    0.008
T90     0.008    0.000    0.008
T50     0.008    0.000    0.008
Peak    0.008    0.000    0.008

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   90.4885 -69.0850 0.0444    1.9  -41.4       0.0042     4.3  TRIG_00358534       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.008 (delta_t =   0.008 [sec])
Background time interval of the image:
-60.240  -1.240 (delta_t =  59.000 [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    0.008 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.99811     ( -3.99811   -3.99811 )
Norm@50keV  : 5.66051E-04    ( -0.000566051   0.00160256 )
------------------------------------------------------------
# Chi-Squared =          40.53 using 59 PHA bins.
# Reduced chi-squared =         0.7111 for     57 degrees of freedom 
# Null hypothesis probability =   9.513559e-01
 
Photon flux (15-150 keV)    in 0.008 sec: 0.348511 ( -0.348511  0.437384 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.9616e-11 ( -9.9616e-11  1.11535e-10 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.008 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -4.97883     (     )
Epeak [keV] : 18.2763      (   )
Norm@50keV  : 1.50302E+04    (     )
------------------------------------------------------------
# Chi-Squared =          37.48 using 59 PHA bins.
# Reduced chi-squared =         0.6693 for     56 degrees of freedom 
# Null hypothesis probability =   9.729814e-01
 
Photon flux (15-150 keV)    in 0.008 sec: 0.746131 ( -0.625814  0.663149 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.99729e-10 ( -1.99729e-10  1.65965e-10 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.008 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.31989   ( -6.24174   1.66256 )
beta        : -9.99999    ( 464199   464199 )
Epeak [keV] : 17.9424      ( -8.87544 6.30135 )
Norm@50keV   : 4432.14    ( -4149.84   9984.23 )
------------------------------------------------------------
# Chi-Squared =          37.86 using 59 PHA bins.
# Reduced chi-squared =         0.6883 for     55 degrees of freedom 
# Null hypothesis probability =   9.623255e-01
 
Photon flux (15-150 keV)    in 0.008 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.000 sec. to    0.008 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.99811     ( -3.99811   -3.99811 )
Norm@50keV  : 5.66051E-04    ( -0.000566051   0.00160256 )
------------------------------------------------------------
# Chi-Squared =          40.53 using 59 PHA bins.
# Reduced chi-squared =         0.7111 for     57 degrees of freedom 
# Null hypothesis probability =   9.513559e-01
 
Photon flux (15-150 keV)    in 0.008 sec: 0.348511 ( -0.348511  0.437384 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.9616e-11 ( -9.9616e-11  1.11535e-10 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.008 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -4.97883     (     )
Epeak [keV] : 18.2763      (   )
Norm@50keV  : 1.50302E+04    (     )
------------------------------------------------------------
# Chi-Squared =          37.48 using 59 PHA bins.
# Reduced chi-squared =         0.6693 for     56 degrees of freedom 
# Null hypothesis probability =   9.729814e-01
 
Photon flux (15-150 keV)    in 0.008 sec: 0.746131 ( -0.625814  0.663149 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.99729e-10 ( -1.99729e-10  1.65965e-10 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.008 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.31989   ( -6.24174   1.66256 )
beta        : -9.99999    ( 464199   464199 )
Epeak [keV] : 17.9424      ( -8.87537 6.30133 )
Norm@50keV   : 4432.14    ( -4149.84   9984.23 )
------------------------------------------------------------
# Chi-Squared =          37.86 using 59 PHA bins.
# Reduced chi-squared =         0.6883 for     55 degrees of freedom 
# Null hypothesis probability =   9.623255e-01
 
Photon flux (15-150 keV)    in 0.008 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Tue Jul 28 09:24:20 EDT 2009