batgrbproduct Analysis for Trigger=179477

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Mon Dec 31 10:12:49 EST 2007
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger179477/GCN5_download_cron
======================================================================

  Trigger: 00179477      Segment: 000

  BAT Trigger Time: 160247920   [s; MET]
      Trigger Stop: 160247984   [s; MET]
               UTC: 2006-01-29T17:18:39.015640    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 214.235167139934   Dec: -46.6968564197135  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    5.64
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    5.64

  Flight Position:   [ source = BAT ]
    RA: 214.235167139934   Dec: -46.6968564197135  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 214.235167041308   Dec: -46.6968575411338  [deg; J2000]  
        { 14h 16m 56.4s , -46d 41' 48.7" }
         +/- inf [arcmin] (estimated 90% radius based on SNR)
         +/- 0 [arcmin] (formal 1-sigma fit error)
    SNR: 0
    RA  =  14h 16m 56.4s  (214.235167 deg.)
    Dec = -46d 41' 49" (-46.696858 deg.)
 
  Angular difference between Flight and Ground position is 0.000067 arcmin
 
  Partial Coding Fraction: 0.9375    [ 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     0.000000   0.000000   0.000000   0.000000
           0.000000   0.000000   0.000000   0.000000 [error]
 Peak      0.000000   0.000000   0.000000   0.000000
           0.000000   0.000000   0.000000   0.000000 [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 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 4.74e-07 6.95e-07 2.00e-06 1.18e-04 6.68e-06 1.19e-04   erg/cm2
Peak flux Power-law 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 4.97e-01 3.78e-01 5.20e-01 8.86e+00 1.40e+00 9.20e+00   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 4.80e-07 9.71e-07 2.46e-06 1.29e-04 6.78e-06 1.35e-04   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 4.97e-01 5.26e-01 5.71e-01 9.95e+00 1.40e+00 1.03e+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 4.85e-07 9.65e-07 2.66e-06 9.57e-05 7.63e-06 3.23e-04   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 2.56e-01 4.87e-01 6.61e-01 3.43e+01 1.48e+00 1.86e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.500    6.500    -      -           0.00e+00 1.16e-02    0.000 57
CPL   1.000    2.526      50.0 5000.0      0.00e+00 2.22e+01    0.000 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.500    6.500    -      -           0.00e+00 1.16e-02    0.000 57
CPL   1.000    2.229      50.0 5000.0      0.00e+00 2.22e+01    0.000 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
  214.2352 -46.6969 45.0000   17.2  -45.4       0.0000     0.0  TRIG_00179477       
------------------------------------------
 
Foreground time interval of the image:
  0.000   3.861 (delta_t =   3.861 [sec])
  5.000  33.041 (delta_t =  28.041 [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
Multiple GTIs in the spectrum
tstart tstop
0.000000 3.860600
5.000000 33.041400
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50000     ( -4.50000   8.50000 )
Norm@50keV  : 0.00000    ( 0.00000   2.320844E-02) )
------------------------------------------------------------
 Chi-Squared =      0.000000     using    59 PHA bins.
 Reduced chi-squared =      0.000000     for     57 degrees of freedom
 Null hypothesis probability =  1.00
 
Photon flux (15-150 keV)    in 31.90 sec: 0.00000 ( 0  2.80304 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  1.33519e-05 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 3.860600
5.000000 33.041400
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     ( -4.00000   1.05280 )
Epeak [keV] : 50.0000      ( -49.9900 9950.00 )
Norm@50keV  : 0.00000    ( 0.00000   44.3329 )
------------------------------------------------------------
 Chi-Squared =      0.000000     using    59 PHA bins.
 Reduced chi-squared =      0.000000     for     56 degrees of freedom
 Null hypothesis probability =  1.00
 
Photon flux (15-150 keV)    in 31.90 sec: 0.00000 ( 0  2.79878 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  1.35659e-05 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 3.860600
5.000000 33.041400
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.983950   ( -9.01605   5.98395 )
beta        : -2.50000    ( -7.50000   12.5000 )
Epeak [keV] : 80.0000      ( -79.9000 9920.00 )
Norm@50keV   : 0.00000    ( 0.00000   9.699788E+06) )
------------------------------------------------------------
 Chi-Squared =      0.000000     using    59 PHA bins.
 Reduced chi-squared =      0.000000     for     55 degrees of freedom
 Null hypothesis probability =  1.00
 
Photon flux (15-150 keV)    in 31.90 sec: 0.00000 ( 0  2.96179 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  1.5258e-05 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    5.000 sec. to   33.041 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50000     ( -4.50000   8.50000 )
Norm@50keV  : 0.00000    ( 0.00000   2.320844E-02) )
------------------------------------------------------------
 Chi-Squared =      0.000000     using    59 PHA bins.
 Reduced chi-squared =      0.000000     for     57 degrees of freedom
 Null hypothesis probability =  1.00
 
Photon flux (15-150 keV)    in 31.90 sec: 0.00000 ( 0  2.80304 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  1.33519e-05 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    5.000 sec. to   33.041 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     ( -4.00000   0.458672 )
Epeak [keV] : 50.0000      ( -49.9900 9950.00 )
Norm@50keV  : 0.00000    ( 0.00000   44.3329 )
------------------------------------------------------------
 Chi-Squared =      0.000000     using    59 PHA bins.
 Reduced chi-squared =      0.000000     for     56 degrees of freedom
 Null hypothesis probability =  1.00
 
Photon flux (15-150 keV)    in 31.90 sec: 0.00000 ( 0  2.79878 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  1.35659e-05 ) ergs/cm2
 
Band function
Time interval is from    5.000 sec. to   33.041 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.983950   ( -9.01605   5.98395 )
beta        : -2.50000    ( -7.50000   12.5000 )
Epeak [keV] : 80.0000      ( -79.9000 9920.00 )
Norm@50keV   : 0.00000    ( 0.00000   9.699788E+06) )
------------------------------------------------------------
 Chi-Squared =      0.000000     using    59 PHA bins.
 Reduced chi-squared =      0.000000     for     55 degrees of freedom
 Null hypothesis probability =  1.00
 
Photon flux (15-150 keV)    in 31.90 sec: 0.00000 ( 0  2.96179 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  1.5258e-05 ) ergs/cm2
 
Plot creation:
Mon Dec 31 10:17:51 EST 2007