batgrbproduct Analysis for Trigger=210886

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Tue Jan  1 13:20:00 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger210886/GCN5_download_cron
======================================================================

  Trigger: 00210886      Segment: 000

  BAT Trigger Time: 169839160   [s; MET]
      Trigger Stop: 169839480   [s; MET]
               UTC: 2006-05-20T17:32:38.794880    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 251.998812361477   Dec: -45.2089494640119  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    5.78
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    5.78

  Flight Position:   [ source = BAT ]
    RA: 251.998812361477   Dec: -45.2089494640119  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 252.087651524889   Dec: -45.1861397066007  [deg; J2000]  
        { 16h 48m 21.0s , -45d 11' 10.1" }
         +/- 3.34994033938911 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.52604641109946 [arcmin] (formal 1-sigma fit error)
    SNR: 5.4083578466264
    RA  =  16h 48m 21.0s  (252.087652 deg.)
    Dec = -45d 11' 10" (-45.186140 deg.)
 
  Angular difference between Flight and Ground position is 3.997672 arcmin
 
  Partial Coding Fraction: 0.9296875    [ including projection effects ]

  Duration
     T90: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]
     T50: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 320 second)
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.050390   0.098980   0.060115   0.025797
           0.031858   0.028299   0.023776   0.020666 [error]
 Peak      0.050390   0.098980   0.060115   0.025797
           0.031858   0.028299   0.023776   0.020666 [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 1.73e-08 3.48e-08 5.45e-08 1.88e-07 1.52e-07 3.08e-07   erg/cm2
              Error 1.18e-08 1.42e-08 2.35e-08 2.12e-07 5.79e-08 2.23e-07   erg/cm2
Peak flux Power-law 1.68e-02 1.85e-02 1.45e-02 1.86e-02 5.67e-02 6.84e-02   ph/cm2/s
              Error 1.17e-02 7.75e-03 6.04e-03 1.87e-02 2.09e-02 2.43e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.73e-08 3.48e-08 5.45e-08 1.87e-07 1.52e-07 2.90e-07   erg/cm2
              Error 1.18e-08 1.42e-08 2.36e-08 2.10e-07 5.80e-08 2.21e-07   erg/cm2
Peak flux Cutoff-PL 1.68e-02 1.85e-02 1.45e-02 1.85e-02 5.67e-02 6.83e-02   ph/cm2/s
              Error 1.17e-02 7.75e-03 6.05e-03 1.86e-02 2.09e-02 2.42e-02   ph/cm2/s
 
Fluence        Band 1.57e-08 3.87e-08 5.24e-08 1.32e-07 1.44e-07 2.50e-07   erg/cm2
              Error 1.03e-08 1.97e-08 2.40e-08 2.48e-07 4.21e-08 2.26e-07   erg/cm2
Peak flux      Band 1.50e-02 2.03e-02 1.40e-02 1.49e-02 5.60e-02 6.70e-02   ph/cm2/s
              Error 1.10e-02 9.18e-03 5.77e-03 2.05e-02 2.10e-02 2.73e-02   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.353    0.712    -      -           4.70e-04 1.64e-04   59.198 57
CPL   1.268    5.429     387.9    0.0      5.25e-04 1.64e-04   59.267 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.353    0.712    -      -           4.70e-04 1.64e-04   59.198 57
CPL   1.268    5.317     387.9    0.0      5.25e-04 1.64e-04   59.267 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  320.000    0.000  320.000
T90   320.000    0.000  320.000
T50   320.000    0.000  320.000
Peak  320.000    0.000  320.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  252.0877 -45.1861 0.0354   19.7   14.7       0.3109     5.4  TRIG_00210886       
------------------------------------------
 
Foreground time interval of the image:
  0.000  33.069 (delta_t =  33.069 [sec])
Background time interval of the image:

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   33.069 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.35341     ( -0.751138   0.672412 )
Norm@50keV  : 4.704889E-04    ( -1.636432E-04   1.634975E-04) )
------------------------------------------------------------
 Chi-Squared =      59.19833     using    59 PHA bins.
 Reduced chi-squared =      1.038567     for     57 degrees of freedom
 Null hypothesis probability = 0.395
 
Photon flux (15-150 keV)    in 33.07 sec: 5.672037E-02 ( -0.020744  0.0209895 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.51843e-07 ( -5.70768e-08  5.8819e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   33.069 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.26841     ( -3.37989   7.47885 )
Epeak [keV] : 387.857      (   )
Norm@50keV  : 5.246282E-04    ( -1.633895E-04   1.654214E-04) )
------------------------------------------------------------
 Chi-Squared =      59.26683     using    59 PHA bins.
 Reduced chi-squared =      1.058336     for     56 degrees of freedom
 Null hypothesis probability = 0.357
 
Photon flux (15-150 keV)    in 33.07 sec: 5.670240E-02 ( -0.0207363  0.0209824 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.51837e-07 ( -5.70732e-08  5.88431e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   33.069 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.862424   ( -14.8528   0.147190 )
beta        : -1.44267    ( -2.09453   1.07388 )
Epeak [keV] : 79.2628      ( -37.2019 9962.70 )
Norm@50keV   : 9.716946E-04    ( -0.678066   6.53333 )
------------------------------------------------------------
 Chi-Squared =      59.07228     using    59 PHA bins.
 Reduced chi-squared =      1.074041     for     55 degrees of freedom
 Null hypothesis probability = 0.329
 
Photon flux (15-150 keV)    in 33.07 sec: 5.600561E-02 ( -0.0211447  0.0208814 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4378e-07 ( -5.32847e-08  3.09813e-08 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.000 sec. to   33.069 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.35341     ( -0.751138   0.672412 )
Norm@50keV  : 4.704889E-04    ( -1.636432E-04   1.634975E-04) )
------------------------------------------------------------
 Chi-Squared =      59.19833     using    59 PHA bins.
 Reduced chi-squared =      1.038567     for     57 degrees of freedom
 Null hypothesis probability = 0.395
 
Photon flux (15-150 keV)    in 33.07 sec: 5.672037E-02 ( -0.020744  0.0209895 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.51843e-07 ( -5.70768e-08  5.8819e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   33.069 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.26841     ( -3.37989   7.25405 )
Epeak [keV] : 387.857      (   )
Norm@50keV  : 5.246282E-04    ( -1.633895E-04   1.654214E-04) )
------------------------------------------------------------
 Chi-Squared =      59.26683     using    59 PHA bins.
 Reduced chi-squared =      1.058336     for     56 degrees of freedom
 Null hypothesis probability = 0.357
 
Photon flux (15-150 keV)    in 33.07 sec: 5.670240E-02 ( -0.0207363  0.0209824 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.51837e-07 ( -5.70732e-08  5.88431e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   33.069 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.862424   ( -14.8528   0.147190 )
beta        : -1.44267    ( -2.09453   1.07388 )
Epeak [keV] : 79.2628      ( -37.2019 9962.70 )
Norm@50keV   : 9.716946E-04    ( -0.678066   6.53333 )
------------------------------------------------------------
 Chi-Squared =      59.07228     using    59 PHA bins.
 Reduced chi-squared =      1.074041     for     55 degrees of freedom
 Null hypothesis probability = 0.329
 
Photon flux (15-150 keV)    in 33.07 sec: 5.600561E-02 ( -0.0211447  0.0208814 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4378e-07 ( -5.32847e-08  3.09813e-08 ) ergs/cm2
 
Plot creation:
Tue Jan  1 13:23:48 EST 2008