batgrbproduct Analysis for Trigger=362122

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Tue Sep  8 09:21:23 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger362122/GCN5_download_cron
======================================================================

  Trigger: 00362122      Segment: 000

  BAT Trigger Time: 274043845.768   [s; MET]
      Trigger Stop: 274043845.832   [s; MET]
               UTC: 2009-09-07T19:17:20.702400    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 203.7833056999   Dec: -36.0490416936566  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.81
     Image Trigger?:     NO
     Rate S/N Ratio:     8.54400374531753  [ if not an image trigger ]
     Image S/N Ratio:    5.81

  Flight Position:   [ source = BAT ]
    RA: 203.7833056999   Dec: -36.0490416936566  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 203.795413037761   Dec: -36.0767918975119  [deg; J2000]  
        { 13h 35m 10.9s , -36d 04' 36.5" }
         +/- 4.30599688315994 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.23830073242422 [arcmin] (formal 1-sigma fit error)
    SNR: 3.7783204828256
 
  Angular difference between Flight and Ground position is 1.765534 arcmin
 
  Partial Coding Fraction: 0.6015625    [ including projection effects ]

  Duration
     T90: 0.0640000104904175 +/- 
        Measured from: 0
                   to: 0.0640000104904175     [s; relative to TRIGTIME]
     T50: 0.0640000104904175 +/- 
        Measured from: 0
                   to: 0.0640000104904175     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 0.0640000104904175 second)
        Measured from: 0     
                   to: 0.0640000104904175     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 0.0640000104904175     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    -0.000414   0.000857   0.008238   0.006072
           0.001889   0.002089   0.001978   0.001985 [error]
 Peak     -0.000414   0.000857   0.008238   0.006072
           0.001889   0.002089   0.001978   0.001985 [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 5.83e-11 4.08e-10 2.51e-09 7.73e-08 8.67e-09 8.07e-08   erg/cm2
              Error 1.65e-10 5.81e-10 2.06e-09 1.03e-07 6.56e-09 1.05e-07   erg/cm2
Peak flux Power-law 2.80e-02 1.04e-01 3.19e-01 3.14e+00 8.91e-01 3.59e+00   ph/cm2/s
              Error 8.14e-02 1.53e-01 2.66e-01 3.34e+00 7.19e-01 3.39e+00   ph/cm2/s
 
Fluence   Cutoff-PL 2.59e-11 2.46e-11 3.47e-10 3.05e-09 1.97e-08 8.99e-09   erg/cm2
              Error 5.41e-10 2.08e-09 1.47e-07 6.80e-09 0.00e+00 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.78e-02 1.03e-01 3.20e-01 3.14e+00 8.93e-01 3.59e+00   ph/cm2/s
              Error 8.11e-02 1.53e-01 2.67e-01 3.85e+00 7.19e-01 3.76e+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   -0.625    1.460    -      -           4.97e-03 5.54e-03   59.180 57
CPL  -4.148    0.000     139.4  314.4      4.58e-02 0.00e+00   58.700 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -0.625    1.460    -      -           4.97e-03 5.54e-03   59.180 57
CPL  -4.148    0.000     139.4  314.4      4.58e-02 0.00e+00   58.700 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    0.064    0.000    0.064
T90     0.064    0.000    0.064
T50     0.064    0.000    0.064
Peak    0.064    0.000    0.064

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  203.7954 -36.0768 0.0510   29.9  -49.6       0.0145     3.8  TRIG_00362122       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.064 (delta_t =   0.064 [sec])
Background time interval of the image:
-60.768  -5.768 (delta_t =  55.000 [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    0.064 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.625288     ( -1.70901   1.21165 )
Norm@50keV  : 4.97290E-03    ( -0.00497921   0.00609761 )
------------------------------------------------------------
# Chi-Squared =          59.18 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     57 degrees of freedom 
# Null hypothesis probability =   3.958080e-01
 
Photon flux (15-150 keV)    in 0.064 sec: 0.891481 ( -0.891481  0.546176 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.67213e-09 ( -8.67213e-09  4.44913e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -4.14769     (     )
Epeak [keV] : 139.352      ( -129.978 498.85 )
Norm@50keV  : 4.57813E-02    (     )
------------------------------------------------------------
# Chi-Squared =          58.70 using 59 PHA bins.
# Reduced chi-squared =          1.048 for     56 degrees of freedom 
# Null hypothesis probability =   3.768184e-01
 
Photon flux (15-150 keV)    in 0.064 sec: 0.892709 ( -0.892709  0.544561 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.98931e-09 ( -8.98931e-09  4.6041e-09 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.064 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.394718   ( -0.39565   -0.39565 )
beta        : 0.625011    ( -1.21239   1.70682 )
Epeak [keV] : 23.5665      ( -23.5758 -23.5758 )
Norm@50keV   : 8.20015E-03    ( -0.00820202   120847 )
------------------------------------------------------------
# Chi-Squared =          59.18 using 59 PHA bins.
# Reduced chi-squared =          1.076 for     55 degrees of freedom 
# Null hypothesis probability =   3.254944e-01
 
Photon flux (15-150 keV)    in 0.064 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    0.064 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.625288     ( -1.70901   1.21165 )
Norm@50keV  : 4.97290E-03    ( -0.00497921   0.00609761 )
------------------------------------------------------------
# Chi-Squared =          59.18 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     57 degrees of freedom 
# Null hypothesis probability =   3.958080e-01
 
Photon flux (15-150 keV)    in 0.064 sec: 0.891481 ( -0.891481  0.546176 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.67213e-09 ( -8.67213e-09  4.44913e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -4.14769     (     )
Epeak [keV] : 139.352      ( -129.978 498.85 )
Norm@50keV  : 4.57813E-02    (     )
------------------------------------------------------------
# Chi-Squared =          58.70 using 59 PHA bins.
# Reduced chi-squared =          1.048 for     56 degrees of freedom 
# Null hypothesis probability =   3.768184e-01
 
Photon flux (15-150 keV)    in 0.064 sec: 0.892709 ( -0.892709  0.544561 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.98931e-09 ( -8.98931e-09  4.6041e-09 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.064 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.394718   ( -0.39565   -0.39565 )
beta        : 0.625011    ( -1.21239   1.70682 )
Epeak [keV] : 23.5665      ( -23.5758 -23.5758 )
Norm@50keV   : 8.20015E-03    ( -0.00820202   120847 )
------------------------------------------------------------
# Chi-Squared =          59.18 using 59 PHA bins.
# Reduced chi-squared =          1.076 for     55 degrees of freedom 
# Null hypothesis probability =   3.254944e-01
 
Photon flux (15-150 keV)    in 0.064 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Tue Sep  8 09:36:44 EDT 2009