batgrbproduct Analysis for Trigger=359435

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Sun Aug  9 02:29:00 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger359435/GCN5_download_cron
======================================================================

  Trigger: 00359435      Segment: 000

  BAT Trigger Time: 271421983.296   [s; MET]
      Trigger Stop: 271421984.32   [s; MET]
               UTC: 2009-08-08T10:59:38.316160    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 138.131123702316   Dec: -20.2087684112947  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.7
     Image Trigger?:     NO
     Rate S/N Ratio:     16.4012194668567  [ if not an image trigger ]
     Image S/N Ratio:    5.7

  Flight Position:   [ source = BAT ]
    RA: 138.131123702316   Dec: -20.2087684112947  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 138.19182382405   Dec: -20.1651886246978  [deg; J2000]  
        { 09h 12m 46.0s , -20d 09' 54.7" }
         +/- 5.08314722793536 [arcmin] (estimated 90% radius based on SNR)
         +/- 3.99587804963196 [arcmin] (formal 1-sigma fit error)
    SNR: 2.98096856308325
 
  Angular difference between Flight and Ground position is 4.303694 arcmin
 
  Partial Coding Fraction: 0.2773438    [ 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: 1.02399995923042     [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     0.009321   0.030939   0.017510   0.038792
           0.013174   0.014054   0.012623   0.013583 [error]
 Peak      0.009321   0.030939   0.017510   0.038792
           0.013174   0.014054   0.012623   0.013583 [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 3.04e-11 4.79e-10 7.00e-09 9.47e-07 3.60e-08 9.54e-07   erg/cm2
              Error 1.61e-09 4.97e-09 1.43e-08 7.40e-07 4.31e-08 7.48e-07   erg/cm2
Peak flux Power-law 8.92e-04 7.30e-03 5.33e-02 2.18e+00 1.97e-01 2.24e+00   ph/cm2/s
              Error 5.02e-02 8.28e-02 1.17e-01 1.73e+00 3.25e-01 1.79e+00   ph/cm2/s
 
Fluence   Cutoff-PL 2.15e-11 3.83e-10 6.35e-09 1.06e-06 3.48e-08 1.07e-06   erg/cm2
              Error 1.50e-09 4.80e-09 1.37e-08 8.30e-07 4.27e-08 8.37e-07   erg/cm2
Peak flux Cutoff-PL 6.27e-04 5.80e-03 4.80e-02 2.41e+00 1.88e-01 2.47e+00   ph/cm2/s
              Error 4.63e-02 7.95e-02 1.16e-01 1.91e+00 3.02e-01 1.97e+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   -1.851    1.682    -      -           5.06e-04 2.74e-03   59.440 57
CPL  -2.650    0.636    10000.0    0.0      2.45e-04 0.00e+00   59.180 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -1.851    1.682    -      -           5.06e-04 2.74e-03   59.440 57
CPL  -2.650    0.636    10000.0    0.0      2.45e-04 0.00e+00   59.180 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
  138.1918 -20.1652 0.0643   44.2  -38.8       0.0815     3.0  TRIG_00359435       
------------------------------------------
 
Foreground time interval of the image:
  0.000   1.024 (delta_t =   1.024 [sec])
Background time interval of the image:
-60.296  -7.296 (delta_t =  53.000 [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: -1.85089     ( -0.798703   2.56494 )
Norm@50keV  : 5.05747E-04    ( -0.000503183   0.00498249 )
------------------------------------------------------------
# Chi-Squared =          59.44 using 59 PHA bins.
# Reduced chi-squared =          1.043 for     57 degrees of freedom 
# Null hypothesis probability =   3.867106e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.197219 ( -0.197219  0.453371 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.60247e-08 ( -3.60247e-08  5.02437e-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: -2.65010     ( 0.333724   1.60638 )
Epeak [keV] : 10000.00      (   )
Norm@50keV  : 2.45377E-04    (     )
------------------------------------------------------------
# Chi-Squared =          59.18 using 59 PHA bins.
# Reduced chi-squared =          1.057 for     56 degrees of freedom 
# Null hypothesis probability =   3.602433e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.187733 ( -0.152843  0.450214 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.48293e-08 ( -3.48293e-08  5.06647e-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       : 0.476033   ( -0.476112   -0.476112 )
beta        : 1.86712    ( -2.58055   0.785508 )
Epeak [keV] : 6.36459      ( -6.36372 -6.36372 )
Norm@50keV   : 3.28120E-03    ( 52.6398   -0.00328162 )
------------------------------------------------------------
# Chi-Squared =          59.44 using 59 PHA bins.
# Reduced chi-squared =          1.081 for     55 degrees of freedom 
# Null hypothesis probability =   3.171338e-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: -1.85089     ( -0.798703   2.56501 )
Norm@50keV  : 5.05747E-04    ( -0.000503183   0.00498249 )
------------------------------------------------------------
# Chi-Squared =          59.44 using 59 PHA bins.
# Reduced chi-squared =          1.043 for     57 degrees of freedom 
# Null hypothesis probability =   3.867106e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.197219 ( -0.197219  0.453371 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.60247e-08 ( -3.60247e-08  5.02437e-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: -2.65010     ( 0.333724   1.60638 )
Epeak [keV] : 10000.00      (   )
Norm@50keV  : 2.45377E-04    (     )
------------------------------------------------------------
# Chi-Squared =          59.18 using 59 PHA bins.
# Reduced chi-squared =          1.057 for     56 degrees of freedom 
# Null hypothesis probability =   3.602433e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.187733 ( -0.152843  0.450214 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.48293e-08 ( -3.48293e-08  5.06647e-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       : 0.476033   ( -0.476112   -0.476112 )
beta        : 1.86712    ( -2.58055   0.785508 )
Epeak [keV] : 6.36459      ( -6.36372 -6.36372 )
Norm@50keV   : 3.28120E-03    ( 52.6398   -0.00328162 )
------------------------------------------------------------
# Chi-Squared =          59.44 using 59 PHA bins.
# Reduced chi-squared =          1.081 for     55 degrees of freedom 
# Null hypothesis probability =   3.171338e-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  9 02:37:59 EDT 2009