batgrbproduct Analysis for Trigger=362330

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Fri Sep 11 16:30:36 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger362330/GCN5_download_cron
======================================================================

  Trigger: 00362330      Segment: 000

  BAT Trigger Time: 274332229.76   [s; MET]
      Trigger Stop: 274332230.016   [s; MET]
               UTC: 2009-09-11T03:23:44.684960    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 152.812121148611   Dec: 45.5636650577821  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.01
     Image Trigger?:     NO
     Rate S/N Ratio:     6.08276253029822  [ if not an image trigger ]
     Image S/N Ratio:    6.01

  Flight Position:   [ source = BAT ]
    RA: 152.812121148611   Dec: 45.5636650577821  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 152.795356552185   Dec: 45.5916785870697  [deg; J2000]  
        { 10h 11m 10.9s , +45d 35' 30.0" }
         +/- 3.82325650045986 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.46713214829106 [arcmin] (formal 1-sigma fit error)
    SNR: 4.47786106784987
 
  Angular difference between Flight and Ground position is 1.822312 arcmin
 
  Partial Coding Fraction: 0.96875    [ including projection effects ]

  Duration
     T90: 0.255999982357025 +/- 
        Measured from: 0
                   to: 0.255999982357025     [s; relative to TRIGTIME]
     T50: 0.255999982357025 +/- 
        Measured from: 0
                   to: 0.255999982357025     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 0.255999982357025 second)
        Measured from: 2.98023223876953e-08     
                   to: 0.256000012159348     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 0.255999982357025     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.001185   0.014555   0.004242   0.001482
           0.002653   0.002788   0.002478   0.002140 [error]
 Peak      0.001185   0.014555   0.004242   0.001482
           0.002653   0.002788   0.002478   0.002140 [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 2.06e-09 3.02e-09 3.30e-09 6.78e-09 1.05e-08 1.53e-08   erg/cm2
              Error 9.38e-10 1.13e-09 1.69e-09 7.25e-09 4.37e-09 8.50e-09   erg/cm2
Peak flux Power-law 2.61e-01 2.11e-01 1.16e-01 9.27e-02 6.30e-01 6.82e-01   ph/cm2/s
              Error 1.21e-01 7.92e-02 5.76e-02 7.89e-02 2.36e-01 2.58e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.49e-09 5.20e-09 3.21e-09 1.00e-08 0.00e+00 0.00e+00   erg/cm2
              Error 7.31e-10 1.67e-09 3.57e-09 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.84e-01 3.55e-01 1.22e-01 2.96e-03 6.62e-01 6.63e-01   ph/cm2/s
              Error 9.19e-02 1.16e-01 8.05e-02 1.65e-02 2.09e-01 2.09e-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 6.89e-01 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    1.861    0.508    -      -           4.48e-03 1.86e-03   59.330 57
CPL  -4.716    0.000      40.8    8.4      3.03e+01 1.98e+01   50.120 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.861    0.508    -      -           4.48e-03 1.86e-03   59.330 57
CPL  -4.716    0.000      40.8    8.4      3.03e+01 1.98e+01   50.120 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    0.256    0.000    0.256
T90     0.256    0.000    0.256
T50     0.256    0.000    0.256
Peak    0.256    0.000    0.256

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  152.7954 +45.5917 0.0430   19.6 -147.4       0.0229     4.5  TRIG_00362330       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.256 (delta_t =   0.256 [sec])
Background time interval of the image:
-60.760 -57.401 (delta_t =   3.359 [sec])
-56.760  -5.760 (delta_t =  51.000 [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    0.256 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.86094     ( -0.469026   0.546205 )
Norm@50keV  : 4.47820E-03    ( -0.00189334   0.00183159 )
------------------------------------------------------------
# Chi-Squared =          59.33 using 59 PHA bins.
# Reduced chi-squared =          1.041 for     57 degrees of freedom 
# Null hypothesis probability =   3.907160e-01
 
Photon flux (15-150 keV)    in 0.256 sec: 0.630114 ( -0.236007  0.236077 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.0461e-08 ( -4.28316e-09  4.45087e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.256 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -4.71611     (     )
Epeak [keV] : 40.8170      ( -7.15602 9.65591 )
Norm@50keV  : 30.2929    ( -30.2929   9.39666 )
------------------------------------------------------------
# Chi-Squared =          50.12 using 59 PHA bins.
# Reduced chi-squared =         0.8951 for     56 degrees of freedom 
# Null hypothesis probability =   6.957826e-01
 
Photon flux (15-150 keV)    in 0.256 sec: 0.661764 ( -0.207424  0.210024 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.256 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99868   ( -1463.6   -1448.61 )
beta        : -4.29508    ( 4.30481   1.9246 )
Epeak [keV] : 39.5420      ( -7.64737 9.98745 )
Norm@50keV   : 52.4269    ( -52.7544   151.058 )
------------------------------------------------------------
# Chi-Squared =          49.89 using 59 PHA bins.
# Reduced chi-squared =         0.9070 for     55 degrees of freedom 
# Null hypothesis probability =   6.698615e-01
 
Photon flux (15-150 keV)    in 0.256 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    0.256 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.86094     ( -0.469026   0.546205 )
Norm@50keV  : 4.47820E-03    ( -0.00189334   0.00183159 )
------------------------------------------------------------
# Chi-Squared =          59.33 using 59 PHA bins.
# Reduced chi-squared =          1.041 for     57 degrees of freedom 
# Null hypothesis probability =   3.907160e-01
 
Photon flux (15-150 keV)    in 0.256 sec: 0.630114 ( -0.236007  0.236077 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.0461e-08 ( -4.28316e-09  4.45087e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.256 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -4.71611     (     )
Epeak [keV] : 40.8170      ( -7.15602 9.65591 )
Norm@50keV  : 30.2929    ( -30.2929   9.39666 )
------------------------------------------------------------
# Chi-Squared =          50.12 using 59 PHA bins.
# Reduced chi-squared =         0.8951 for     56 degrees of freedom 
# Null hypothesis probability =   6.957826e-01
 
Photon flux (15-150 keV)    in 0.256 sec: 0.661764 ( -0.207424  0.210024 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.256 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99943   ( -3339.97   -3324.97 )
beta        : -4.28573    ( 4.29728   1.91641 )
Epeak [keV] : 39.4637      ( -7.60666 10.0377 )
Norm@50keV   : 53.1899    ( -53.1623   150.889 )
------------------------------------------------------------
# Chi-Squared =          49.89 using 59 PHA bins.
# Reduced chi-squared =         0.9070 for     55 degrees of freedom 
# Null hypothesis probability =   6.698619e-01
 
Photon flux (15-150 keV)    in 0.256 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Fri Sep 11 16:44:26 EDT 2009