batgrbproduct Analysis for Trigger=362633

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Sun Sep 13 06:13:07 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger362633/GCN5_download_cron
======================================================================

  Trigger: 00362633      Segment: 000

  BAT Trigger Time: 274463434.944   [s; MET]
      Trigger Stop: 274463435.968   [s; MET]
               UTC: 2009-09-12T15:50:29.864660    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 188.091869580758   Dec: 61.5125700544948  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.62
     Image Trigger?:     NO
     Rate S/N Ratio:     10.4880884817015  [ if not an image trigger ]
     Image S/N Ratio:    6.62

  Flight Position:   [ source = BAT ]
    RA: 188.091869580758   Dec: 61.5125700544948  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 188.04636031838   Dec: 61.474846504157  [deg; J2000]  
        { 12h 32m 11.1s , +61d 28' 29.4" }
         +/- 1.22470261978823 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.406171291138878 [arcmin] (formal 1-sigma fit error)
    SNR: 22.7698575191112
 
  Angular difference between Flight and Ground position is 2.611761 arcmin
 
  Partial Coding Fraction: 0.3046875    [ including projection effects ]

  Duration
     T90: 144 +/- 22.6274169979695
        Measured from: 0.0560001134872437
                   to: 144.056000113487     [s; relative to TRIGTIME]
     T50: 80 +/- 16
        Measured from: 16.0560001134872
                   to: 96.0560001134872     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 87.555999994278     
                   to: 88.555999994278     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.944000005722     
                   to: 160.055999994278     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.167269   3.152300   2.105870   0.245879
           0.129460   0.136356   0.121847   0.108373 [error]
 Peak      0.478485   0.701272   0.564829   0.149155
           0.041187   0.044243   0.039233   0.033391 [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 7.72e-07 1.28e-06 1.62e-06 4.09e-06 4.82e-06 7.77e-06   erg/cm2
              Error 6.75e-08 6.93e-08 1.19e-07 6.32e-07 2.83e-07 7.30e-07   erg/cm2
Peak flux Power-law 3.19e-01 3.28e-01 2.38e-01 2.77e-01 9.92e-01 1.16e+00   ph/cm2/s
              Error 3.88e-02 2.44e-02 2.02e-02 4.85e-02 6.95e-02 8.01e-02   ph/cm2/s
 
Fluence   Cutoff-PL 6.85e-07 1.38e-06 1.66e-06 1.45e-06 5.18e-06 0.00e+00   erg/cm2
              Error 8.13e-08 8.86e-08 1.32e-07 8.44e-07 0.00e+00 0.00e+00   erg/cm2
Peak flux Cutoff-PL 3.00e-01 3.38e-01 2.45e-01 1.91e-01 9.78e-01 1.07e+00   ph/cm2/s
              Error 4.62e-02 2.87e-02 2.26e-02 9.90e-02 7.23e-02 1.26e-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    1.663    0.094    -      -           2.95e-03 1.63e-04   52.840 57
CPL   0.905    0.440      69.3   19.5      7.27e-03 4.03e-03   42.500 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.462    0.119    -      -           8.03e-03 5.53e-04   72.850 57
CPL   1.140    0.449     134.5  -40.0      1.17e-02 6.58e-03   71.440 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: 100.480000 sec.
T50 in the 50-300 keV band: 79.936000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  176.000  -15.944  160.056
T90   144.000    0.056  144.056
T50    80.000   16.056   96.056
Peak    1.000   87.556   88.556

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  188.0464 +61.4748 0.0084   33.9 -105.0       8.4326    22.8  TRIG_00362633       
------------------------------------------
 
Foreground time interval of the image:
-15.944 160.056 (delta_t = 176.000 [sec])
Background time interval of the image:
-239.944 -15.944 (delta_t = 224.000 [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  -15.944 sec. to  160.056 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66275     ( -0.0931195   0.0941393 )
Norm@50keV  : 2.94774E-03    ( -0.00016329   0.000162152 )
------------------------------------------------------------
# Chi-Squared =          52.84 using 59 PHA bins.
# Reduced chi-squared =         0.9271 for     57 degrees of freedom 
# Null hypothesis probability =   6.316724e-01
 
Photon flux (15-150 keV)    in 176 sec: 0.386537 ( -0.0208474  0.0208776 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.81906e-06 ( -2.81674e-07  2.83378e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -15.944 sec. to  160.056 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.905328     ( -0.463713   0.417198 )
Epeak [keV] : 69.2797      ( -10.9326 28.0714 )
Norm@50keV  : 7.26653E-03    ( -0.00279959   0.00526097 )
------------------------------------------------------------
# Chi-Squared =          42.50 using 59 PHA bins.
# Reduced chi-squared =         0.7590 for     56 degrees of freedom 
# Null hypothesis probability =   9.083876e-01
 
Photon flux (15-150 keV)    in 176 sec: 0.371384 ( -0.022324  0.022323 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from  -15.944 sec. to  160.056 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.596592   ( -0.653441   1.16788 )
beta        : -2.13257    ( 2.13257   0.312324 )
Epeak [keV] : 57.7908      ( -17.4599 31.2634 )
Norm@50keV   : 1.11882E-02    ( -0.0111882   0.0583963 )
------------------------------------------------------------
# Chi-Squared =          41.62 using 59 PHA bins.
# Reduced chi-squared =         0.7568 for     55 degrees of freedom 
# Null hypothesis probability =   9.084777e-01
 
Photon flux (15-150 keV)    in 176 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   80.056 sec. to   96.056 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.46232     ( -0.118437   0.11864 )
Norm@50keV  : 8.02822E-03    ( -0.000553273   0.000551986 )
------------------------------------------------------------
# Chi-Squared =          72.85 using 59 PHA bins.
# Reduced chi-squared =          1.278 for     57 degrees of freedom 
# Null hypothesis probability =   7.679930e-02
 
Photon flux (15-150 keV)    in 16 sec: 0.992429 ( -0.0694575  0.0695575 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.22644e-06 ( -9.23189e-08  9.28347e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   80.056 sec. to   96.056 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.13971     ( -0.512227   0.385142 )
Epeak [keV] : 134.498      ( -54.4444 -134.499 )
Norm@50keV  : 1.16703E-02    ( -0.00399576   0.00915804 )
------------------------------------------------------------
# Chi-Squared =          71.44 using 59 PHA bins.
# Reduced chi-squared =          1.276 for     56 degrees of freedom 
# Null hypothesis probability =   8.007127e-02
 
Photon flux (15-150 keV)    in 16 sec: 0.978390 ( -0.072313  0.07229 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19786e-06 ( -1.02499e-07  1.01822e-07 ) ergs/cm2
 
Band function
Time interval is from   80.056 sec. to   96.056 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.486663   ( 0.723315   0.723315 )
beta        : -1.62537    ( 1.62783   0.225425 )
Epeak [keV] : 58.6401      ( -58.6591 332.122 )
Norm@50keV   : 3.04554E-02    ( -0.0304294   286.294 )
------------------------------------------------------------
# Chi-Squared =          70.50 using 59 PHA bins.
# Reduced chi-squared =          1.282 for     55 degrees of freedom 
# Null hypothesis probability =   7.771902e-02
 
Photon flux (15-150 keV)    in 16 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Sun Sep 13 06:36:46 EDT 2009