batgrbproduct Analysis for Trigger=360435

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Thu Aug 20 01:43:40 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger360435/GCN5_download_cron
======================================================================

  Trigger: 00360435      Segment: 000

  BAT Trigger Time: 272402468.864   [s; MET]
      Trigger Stop: 272402469.376   [s; MET]
               UTC: 2009-08-19T19:21:03.852120    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 250.100069030358   Dec: -47.3303261590304  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.78
     Image Trigger?:     NO
     Rate S/N Ratio:     55.7404700374871  [ if not an image trigger ]
     Image S/N Ratio:    5.78

  Flight Position:   [ source = BAT ]
    RA: 250.100069030358   Dec: -47.3303261590304  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 250.105615959753   Dec: -47.3037895802323  [deg; J2000]  
        { 16h 40m 25.3s , -47d 18' 13.6" }
         +/- 3.39117112602379 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.01269763610553 [arcmin] (formal 1-sigma fit error)
    SNR: 5.3146655917784
 
  Angular difference between Flight and Ground position is 1.608102 arcmin
 
  Partial Coding Fraction: 0.46875    [ including projection effects ]

  Duration
     T90: 0.51199996471405 +/- 
        Measured from: 0
                   to: 0.51199996471405     [s; relative to TRIGTIME]
     T50: 0.51199996471405 +/- 
        Measured from: 0
                   to: 0.51199996471405     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 0.51199996471405 second)
        Measured from: 0     
                   to: 0.51199996471405     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 0.51199996471405     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.027369   0.020552   0.002144   0.001157
           0.007453   0.006697   0.005663   0.004807 [error]
 Peak      0.027369   0.020552   0.002144   0.001157
           0.007453   0.006697   0.005663   0.004807 [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 9.13e-09 8.06e-09 4.89e-09 4.48e-09 2.40e-08 2.66e-08   erg/cm2
              Error 3.93e-09 3.48e-09 3.96e-09 7.82e-09 1.04e-08 1.43e-08   erg/cm2
Peak flux Power-law 5.90e-01 2.92e-01 8.84e-02 3.40e-02 9.90e-01 1.00e+00   ph/cm2/s
              Error 2.59e-01 1.22e-01 6.93e-02 5.48e-02 3.64e-01 3.70e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.50e-09 1.02e-08 1.68e-09 1.26e-11 2.04e-08 2.04e-08   erg/cm2
              Error 4.24e-09 4.92e-09 3.92e-09 4.84e-09 9.03e-09 1.14e-08   erg/cm2
Peak flux Cutoff-PL 5.32e-01 3.74e-01 3.46e-02 1.42e-04 9.41e-01 9.41e-01   ph/cm2/s
              Error 2.84e-01 1.71e-01 7.10e-02 3.51e-02 3.52e-01 3.53e-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 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    2.722    0.818    -      -           4.37e-03 2.67e-03   56.500 57
CPL  -0.325    1.009      24.0    0.0      5.02e-01 0.00e+00   54.760 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.722    0.818    -      -           4.37e-03 2.67e-03   56.500 57
CPL  -0.325    1.009      24.0    0.0      5.02e-01 0.00e+00   54.760 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    0.512    0.000    0.512
T90     0.512    0.000    0.512
T50     0.512    0.000    0.512
Peak    0.512    0.000    0.512

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  250.1056 -47.3038 0.0361   43.3 -173.5       0.0675     5.3  TRIG_00360435       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.512 (delta_t =   0.512 [sec])
Background time interval of the image:
-60.864  -4.864 (delta_t =  56.000 [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    0.512 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.72221     ( -0.702107   0.934004 )
Norm@50keV  : 4.36947E-03    ( -0.00257432   0.00276431 )
------------------------------------------------------------
# Chi-Squared =          56.50 using 59 PHA bins.
# Reduced chi-squared =         0.9913 for     57 degrees of freedom 
# Null hypothesis probability =   4.936821e-01
 
Photon flux (15-150 keV)    in 0.512 sec: 0.989732 ( -0.363818  0.363819 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.39876e-08 ( -9.91805e-09  1.0948e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.512 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.325324     ( 0.378808   2.39667 )
Epeak [keV] : 23.9668      (   )
Norm@50keV  : 0.501786    (     )
------------------------------------------------------------
# Chi-Squared =          54.76 using 59 PHA bins.
# Reduced chi-squared =         0.9779 for     56 degrees of freedom 
# Null hypothesis probability =   5.218957e-01
 
Photon flux (15-150 keV)    in 0.512 sec: 0.941084 ( -0.345203  0.359216 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.03576e-08 ( -7.68404e-09  1.03746e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.512 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.48929   ( 0.813639   0.813639 )
beta        : -9.99997    ( 126112   126122 )
Epeak [keV] : 25.5513      ( -20.5134 12.9333 )
Norm@50keV   : 3.17406    ( -2.9345   421.45 )
------------------------------------------------------------
# Chi-Squared =          54.72 using 59 PHA bins.
# Reduced chi-squared =         0.9949 for     55 degrees of freedom 
# Null hypothesis probability =   4.852906e-01
 
Photon flux (15-150 keV)    in 0.512 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    0.512 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.72221     ( -0.702107   0.934004 )
Norm@50keV  : 4.36947E-03    ( -0.00257432   0.00276431 )
------------------------------------------------------------
# Chi-Squared =          56.50 using 59 PHA bins.
# Reduced chi-squared =         0.9913 for     57 degrees of freedom 
# Null hypothesis probability =   4.936821e-01
 
Photon flux (15-150 keV)    in 0.512 sec: 0.989732 ( -0.363818  0.363819 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.39876e-08 ( -9.91805e-09  1.0948e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.512 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.325324     ( 0.378808   2.39667 )
Epeak [keV] : 23.9668      (   )
Norm@50keV  : 0.501786    (     )
------------------------------------------------------------
# Chi-Squared =          54.76 using 59 PHA bins.
# Reduced chi-squared =         0.9779 for     56 degrees of freedom 
# Null hypothesis probability =   5.218957e-01
 
Photon flux (15-150 keV)    in 0.512 sec: 0.941084 ( -0.345203  0.359216 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.03576e-08 ( -7.68404e-09  1.03746e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.512 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.48929   ( 0.813639   0.813639 )
beta        : -9.99997    ( 126112   126122 )
Epeak [keV] : 25.5513      ( -20.5131 12.9333 )
Norm@50keV   : 3.17406    ( -2.9345   421.45 )
------------------------------------------------------------
# Chi-Squared =          54.72 using 59 PHA bins.
# Reduced chi-squared =         0.9949 for     55 degrees of freedom 
# Null hypothesis probability =   4.852906e-01
 
Photon flux (15-150 keV)    in 0.512 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Thu Aug 20 01:58:23 EDT 2009