batgrbproduct Analysis for Trigger=360079

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Sun Aug 16 09:38:20 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger360079/GCN5_download_cron
======================================================================

  Trigger: 00360079      Segment: 000

  BAT Trigger Time: 272085738.56   [s; MET]
      Trigger Stop: 272085739.584   [s; MET]
               UTC: 2009-08-16T03:22:13.558500    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 23.5007294909217   Dec: 43.2572979621309  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.61
     Image Trigger?:     NO
     Rate S/N Ratio:     14.2126704035519  [ if not an image trigger ]
     Image S/N Ratio:    5.61

  Flight Position:   [ source = BAT ]
    RA: 23.5007294909217   Dec: 43.2572979621309  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 23.39406973955   Dec: 43.3318928863757  [deg; J2000]  
        { 01h 33m 34.6s , +43d 19' 54.8" }
         +/- 3.81148127430133 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.15974189007802 [arcmin] (formal 1-sigma fit error)
    SNR: 4.49763692368723
 
  Angular difference between Flight and Ground position is 6.459681 arcmin
 
  Partial Coding Fraction: 0.90625    [ including projection effects ]

  Duration
     T90: 1.02399998903275 +/- 
        Measured from: 0
                   to: 1.02399998903275     [s; relative to TRIGTIME]
     T50: 1.02399998903275 +/- 
        Measured from: 0
                   to: 1.02399998903275     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 1.02399998903275 second)
        Measured from: 2.98023223876953e-08     
                   to: 1.02400001883507     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 1.02399998903275     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    -0.003324   0.011135   0.010028   0.024360
           0.005409   0.005785   0.005246   0.005362 [error]
 Peak     -0.003324   0.011135   0.010028   0.024360
           0.005409   0.005785   0.005246   0.005362 [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 1.61e-11 2.54e-10 3.70e-09 4.99e-07 1.90e-08 5.03e-07   erg/cm2
              Error 4.14e-10 1.62e-09 6.24e-09 3.75e-07 2.05e-08 3.74e-07   erg/cm2
Peak flux Power-law 4.73e-04 3.87e-03 2.82e-02 1.15e+00 1.04e-01 1.18e+00   ph/cm2/s
              Error 1.27e-02 2.67e-02 5.03e-02 8.71e-01 1.36e-01 9.01e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.93e-11 7.81e-10 1.97e-10 3.29e-09 5.56e-07 1.81e-08   erg/cm2
              Error 4.52e-10 5.93e-09 4.22e-07 2.06e-08 4.33e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.36e-03 1.22e-02 3.11e-03 2.49e-02 1.27e+00 9.76e-02   ph/cm2/s
              Error 1.39e-02 5.03e-02 9.70e-01 1.25e-01 1.02e+00 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   -1.798    1.709    -      -           2.94e-04 0.00e+00   57.160 57
CPL  -1.106    0.217    9923.0    0.0      7.29e-04 6.57e-03   57.460 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -1.798    1.709    -      -           2.94e-04 0.00e+00   57.160 57
CPL  -1.106    0.217    9923.0    0.0      7.29e-04 6.57e-03   57.460 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    1.024    0.000    1.024
T90     1.024    0.000    1.024
T50     1.024    0.000    1.024
Peak    1.024    0.000    1.024

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   23.3941 +43.3319 0.0426   13.8   62.3       0.0521     4.5  TRIG_00360079       
------------------------------------------
 
Foreground time interval of the image:
  0.000   1.024 (delta_t =   1.024 [sec])
Background time interval of the image:
-60.560 -10.560 (delta_t =  50.000 [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    1.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.79769     ( -1.724   1.69393 )
Norm@50keV  : 2.94008E-04    (     )
------------------------------------------------------------
# Chi-Squared =          57.16 using 59 PHA bins.
# Reduced chi-squared =          1.003 for     57 degrees of freedom 
# Null hypothesis probability =   4.691988e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.104177 ( -0.104177  0.167275 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.90245e-08 ( -1.90245e-08  2.20488e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    1.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.10562     ( 1.10867   1.54198 )
Epeak [keV] : 9922.99      (   )
Norm@50keV  : 7.29252E-04    ( -0.000732463   0.0124034 )
------------------------------------------------------------
# Chi-Squared =          57.46 using 59 PHA bins.
# Reduced chi-squared =          1.026 for     56 degrees of freedom 
# Null hypothesis probability =   4.208747e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 9.76318E-02 ( -0.0770756  0.173508 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.81295e-08 ( -1.81295e-08  2.30454e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.257284   ( -0.257314   -0.257314 )
beta        : 1.86430    ( -6.20873   0.888928 )
Epeak [keV] : 8.53032      ( -8.5302 -8.5302 )
Norm@50keV   : 9.42600E-04    ( -0.000942626   12546.4 )
------------------------------------------------------------
# Chi-Squared =          57.14 using 59 PHA bins.
# Reduced chi-squared =          1.039 for     55 degrees of freedom 
# Null hypothesis probability =   3.955258e-01
 
Photon flux (15-150 keV)    in 1.024 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    1.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.79769     ( -1.724   1.69393 )
Norm@50keV  : 2.94008E-04    (     )
------------------------------------------------------------
# Chi-Squared =          57.16 using 59 PHA bins.
# Reduced chi-squared =          1.003 for     57 degrees of freedom 
# Null hypothesis probability =   4.691988e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.104177 ( -0.104177  0.167275 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.90245e-08 ( -1.90245e-08  2.20488e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    1.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.10562     ( 1.10867   1.54198 )
Epeak [keV] : 9922.99      (   )
Norm@50keV  : 7.29252E-04    ( -0.000732463   0.0124035 )
------------------------------------------------------------
# Chi-Squared =          57.46 using 59 PHA bins.
# Reduced chi-squared =          1.026 for     56 degrees of freedom 
# Null hypothesis probability =   4.208747e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 9.76318E-02 ( -0.0770756  0.173508 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.81295e-08 ( -1.81295e-08  2.30454e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.257284   ( -0.257314   -0.257314 )
beta        : 1.86430    ( -6.20873   0.888928 )
Epeak [keV] : 8.53032      ( -8.5302 -8.5302 )
Norm@50keV   : 9.42600E-04    ( -0.000942626   12546.4 )
------------------------------------------------------------
# Chi-Squared =          57.14 using 59 PHA bins.
# Reduced chi-squared =          1.039 for     55 degrees of freedom 
# Null hypothesis probability =   3.955258e-01
 
Photon flux (15-150 keV)    in 1.024 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Sun Aug 16 09:50:18 EDT 2009