batgrbproduct Analysis for Trigger=292887

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Fri Dec 14 16:48:01 EST 2007
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger292887/GCN5_download_cron
======================================================================

  Trigger: 00292887      Segment: 000

  BAT Trigger Time: 213031648   [s; MET]
      Trigger Stop: 213031712   [s; MET]
               UTC: 2007-10-02T15:27:25.735940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 244.292131087849   Dec: -13.8671288098478  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    20.2
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    20.2

  Flight Position:   [ source = BAT ]
    RA: 244.292131087849   Dec: -13.8671288098478  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 244.295592847529   Dec: -13.8601146929981  [deg; J2000]  
        { 16h 17m 10.9s , -13d 51' 36.4" }
         +/- 1.28912596504426 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.44338146460462 [arcmin] (formal 1-sigma fit error)
    SNR: 21.1618477682735
    RA  =  16h 17m 10.9s  (244.295593 deg.)
    Dec = -13d 51' 36" (-13.860115 deg.)
 
  Angular difference between Flight and Ground position is 0.466666 arcmin
 
  Partial Coding Fraction: 0.7109375    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.727040   0.160302   0.024183  -0.003809
           0.053277   0.047213   0.039765   0.034723 [error]
 Peak      1.727040   0.160302   0.024183  -0.003809
           0.053277   0.047213   0.039765   0.034723 [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 5.75e-07 8.26e-08 5.37e-09 3.70e-10 6.63e-07 6.63e-07   erg/cm2
              Error 6.88e-08 2.21e-08 3.50e-09 4.32e-10 7.32e-08 7.32e-08   erg/cm2
Peak flux Power-law 3.16e-01 2.66e-02 8.64e-04 2.90e-05 3.44e-01 3.44e-01   ph/cm2/s
              Error 3.91e-02 6.77e-03 5.50e-04 3.78e-05 3.95e-02 3.95e-02   ph/cm2/s
 
Fluence   Cutoff-PL 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 Cutoff-PL 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
 
Fluence        Band 5.68e-07 8.25e-08 5.30e-09 3.40e-10 6.67e-07 5.21e-07   erg/cm2
              Error 6.42e-08 1.68e-08 7.36e-08 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 3.20e-01 2.10e-02 2.49e-04 3.00e-06 3.42e-01 3.41e-01   ph/cm2/s
              Error 4.17e-02 5.80e-03 4.38e-04 3.35e-05 4.17e-02 4.09e-02   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    5.950    0.539    -      -           8.79e-05 4.67e-05   48.912 57
CPL   1.757    0.000       1.2    0.0      2.72e-01 0.00e+00   47.705 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    5.950    0.539    -      -           8.79e-05 4.67e-05   48.912 57
CPL   1.757    0.000       1.2    0.0      2.72e-01 0.00e+00   47.705 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  244.2956 -13.8601 0.0090   25.5  -53.3       1.9801    21.2  TRIG_00292887       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [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   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.95001     ( -0.531773   0.545636 )
Norm@50keV  : 8.788488E-05    ( -3.684956E-05   5.651668E-05) )
------------------------------------------------------------
 Chi-Squared =      48.91225     using    59 PHA bins.
 Reduced chi-squared =     0.8581097     for     57 degrees of freedom
 Null hypothesis probability = 0.768
 
Photon flux (15-150 keV)    in 64.00 sec: 0.343860 ( -0.039481  0.039526 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.62829e-07 ( -7.32275e-08  7.32416e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.75700     (     )
Epeak [keV] : 1.18379      (   )
Norm@50keV  : 0.271561    (     )
------------------------------------------------------------
 Chi-Squared =      47.70482     using    59 PHA bins.
 Reduced chi-squared =     0.8518718     for     56 degrees of freedom
 Null hypothesis probability = 0.777
 
Photon flux (15-150 keV)    in 64.00 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.13935   ( -0.860647   4.21118 )
beta        : -5.94438    ( -0.550690   0.526746 )
Epeak [keV] : 285.273      ( -285.173 9714.73 )
Norm@50keV   : 1.200831E-02    ( -5.071331E-03   7.617493E-03) )
------------------------------------------------------------
 Chi-Squared =      48.91195     using    59 PHA bins.
 Reduced chi-squared =     0.8893081     for     55 degrees of freedom
 Null hypothesis probability = 0.705
 
Photon flux (15-150 keV)    in 64.00 sec: 0.341875 ( -0.04108  0.042275 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.66822e-07 ( -7.36339e-08  7.35232e-08 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.95001     ( -0.531773   0.545636 )
Norm@50keV  : 8.788488E-05    ( -3.684956E-05   5.651668E-05) )
------------------------------------------------------------
 Chi-Squared =      48.91225     using    59 PHA bins.
 Reduced chi-squared =     0.8581097     for     57 degrees of freedom
 Null hypothesis probability = 0.768
 
Photon flux (15-150 keV)    in 64.00 sec: 0.343860 ( -0.039481  0.039526 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.62829e-07 ( -7.32275e-08  7.32416e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.75700     (     )
Epeak [keV] : 1.18379      (   )
Norm@50keV  : 0.271561    (     )
------------------------------------------------------------
 Chi-Squared =      47.70482     using    59 PHA bins.
 Reduced chi-squared =     0.8518718     for     56 degrees of freedom
 Null hypothesis probability = 0.777
 
Photon flux (15-150 keV)    in 64.00 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.13935   ( -0.860647   4.21118 )
beta        : -5.94438    ( -0.550690   0.526746 )
Epeak [keV] : 285.273      ( -285.173 9714.73 )
Norm@50keV   : 1.200831E-02    ( -5.071331E-03   7.617493E-03) )
------------------------------------------------------------
 Chi-Squared =      48.91195     using    59 PHA bins.
 Reduced chi-squared =     0.8893081     for     55 degrees of freedom
 Null hypothesis probability = 0.705
 
Photon flux (15-150 keV)    in 64.00 sec: 0.341875 ( -0.04108  0.042275 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.66822e-07 ( -7.36339e-08  7.35232e-08 ) ergs/cm2
 
Plot creation:
Fri Dec 14 17:05:38 EST 2007