batgrbproduct Analysis for Trigger=354299

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.44
    Process Start Time (local time): Sun Jun  7 18:28:27 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger354299/GCN5_download_cron
======================================================================

  Trigger: 00354299      Segment: 000

  BAT Trigger Time: 266045422.208   [s; MET]
      Trigger Stop: 266045422.72   [s; MET]
               UTC: 2009-06-07T05:30:17.401940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 191.208949448038   Dec: 44.1296441879312  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.44
     Image Trigger?:     NO
     Rate S/N Ratio:     18.8679622641132  [ if not an image trigger ]
     Image S/N Ratio:    6.44

  Flight Position:   [ source = BAT ]
    RA: 191.208949448038   Dec: 44.1296441879312  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 191.194209179039   Dec: 44.1076890590433  [deg; J2000]  
        { 12h 44m 46.6s , +44d 06' 27.7" }
         +/- 1.89941838122806 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.03266898455223 [arcmin] (formal 1-sigma fit error)
    SNR: 12.1643497720712
 
  Angular difference between Flight and Ground position is 1.462336 arcmin
 
  Partial Coding Fraction: 0.96875    [ including projection effects ]

  Duration
     T90: 2.28800001740456 +/- 0.13078227252082
        Measured from: 0.0840000808238983
                   to: 2.37200009822845     [s; relative to TRIGTIME]
     T50: 1.86399999260902 +/- 0.282899258735255
        Measured from: 0.264000087976456
                   to: 2.12800008058548     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.00800001621246338     
                   to: 0.991999983787537     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0600000023841858     
                   to: 2.48800000548363     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.046180   0.054707   0.052070   0.014115
           0.007932   0.008036   0.007443   0.006572 [error]
 Peak      0.027888   0.017706   0.032851   0.008026
           0.004867   0.004901   0.004695   0.004149 [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 1.09e-08 2.35e-08 3.99e-08 1.55e-07 1.10e-07 2.30e-07   erg/cm2
              Error 3.28e-09 3.94e-09 7.54e-09 7.17e-08 1.86e-08 7.57e-08   erg/cm2
Peak flux Power-law 1.54e-01 2.17e-01 2.26e-01 4.34e-01 7.33e-01 1.03e+00   ph/cm2/s
              Error 7.01e-02 5.53e-02 4.40e-02 2.22e-01 1.36e-01 2.17e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.09e-08 2.35e-08 4.00e-08 1.54e-07 1.10e-07 2.29e-07   erg/cm2
              Error 3.28e-09 3.94e-09 7.55e-09 7.12e-08 1.86e-08 7.52e-08   erg/cm2
Peak flux Cutoff-PL 1.53e-01 2.17e-01 2.26e-01 4.32e-01 7.33e-01 1.03e+00   ph/cm2/s
              Error 7.00e-02 5.54e-02 4.40e-02 2.21e-01 1.35e-01 2.16e-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    1.238    0.300    -      -           4.49e-03 6.51e-04   71.490 57
CPL   1.234    0.303    10000.0    0.0      4.51e-03 6.55e-04   71.520 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.938    0.400    -      -           6.38e-03 1.17e-03   61.870 57
CPL   2.160    0.000      55.9    0.0      1.36e-03 0.00e+00   60.370 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: 0.576000 sec.
T50 in the 50-300 keV band: 0.320000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    2.428    0.060    2.488
T90     2.288    0.084    2.372
T50     1.864    0.264    2.128
Peak    1.000   -0.008    0.992

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  191.1942 +44.1077 0.0158   19.9   -6.8       0.1783    12.2  TRIG_00354299       
------------------------------------------
 
Foreground time interval of the image:
  0.060   2.488 (delta_t =   2.428 [sec])
Background time interval of the image:
-60.208   0.060 (delta_t =  60.268 [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    0.060 sec. to    2.488 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.23751     ( -0.300595   0.298541 )
Norm@50keV  : 4.49375E-03    ( -0.000651874   0.000650617 )
------------------------------------------------------------
# Chi-Squared =          71.49 using 59 PHA bins.
# Reduced chi-squared =          1.254 for     57 degrees of freedom 
# Null hypothesis probability =   9.373449e-02
 
Photon flux (15-150 keV)    in 2.428 sec: 0.530416 ( -0.0788808  0.0791142 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.0956e-07 ( -1.85004e-08  1.87016e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.060 sec. to    2.488 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.23384     ( -0.334596   0.272294 )
Epeak [keV] : 10000.00      (   )
Norm@50keV  : 4.51368E-03    ( -0.000656123   0.00065408 )
------------------------------------------------------------
# Chi-Squared =          71.52 using 59 PHA bins.
# Reduced chi-squared =          1.277 for     56 degrees of freedom 
# Null hypothesis probability =   7.908434e-02
 
Photon flux (15-150 keV)    in 2.428 sec: 0.530148 ( -0.078853  0.079089 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.09568e-07 ( -1.85096e-08  1.87131e-08 ) ergs/cm2
 
Band function
Time interval is from    0.060 sec. to    2.488 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.00502   ( 1.00503   1.00503 )
beta        : -1.23734    ( 1.23735   0.300317 )
Epeak [keV] : 46.8911      ( -46.8852 -46.8852 )
Norm@50keV   : 8.06782E-03    ( -0.00806782   2480.44 )
------------------------------------------------------------
# Chi-Squared =          71.49 using 59 PHA bins.
# Reduced chi-squared =          1.300 for     55 degrees of freedom 
# Null hypothesis probability =   6.676841e-02
 
Photon flux (15-150 keV)    in 2.428 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    0.060 sec. to    0.924 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.938465     ( -0.408979   0.390922 )
Norm@50keV  : 6.38496E-03    ( -0.00118995   0.00114909 )
------------------------------------------------------------
# Chi-Squared =          61.87 using 59 PHA bins.
# Reduced chi-squared =          1.085 for     57 degrees of freedom 
# Null hypothesis probability =   3.064097e-01
 
Photon flux (15-150 keV)    in 0.864 sec: 0.733320 ( -0.135248  0.135752 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.10169e-08 ( -1.20638e-08  1.21001e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.060 sec. to    0.924 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.15953     (     )
Epeak [keV] : 55.9011      (   )
Norm@50keV  : 1.36218E-03    (     )
------------------------------------------------------------
# Chi-Squared =          60.37 using 59 PHA bins.
# Reduced chi-squared =          1.078 for     56 degrees of freedom 
# Null hypothesis probability =   3.208245e-01
 
Photon flux (15-150 keV)    in 0.864 sec: 0.732815 ( -0.135196  0.135717 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.10353e-08 ( -1.20758e-08  1.21074e-08 ) ergs/cm2
 
Band function
Time interval is from    0.060 sec. to    0.924 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.880208   ( 0.879864   0.879864 )
beta        : -0.939565    ( -0.390527   0.410194 )
Epeak [keV] : 13.8683      ( -13.8647 -13.8647 )
Norm@50keV   : 9.49494E-03    ( -0.00426362   458425 )
------------------------------------------------------------
# Chi-Squared =          61.87 using 59 PHA bins.
# Reduced chi-squared =          1.125 for     55 degrees of freedom 
# Null hypothesis probability =   2.442092e-01
 
Photon flux (15-150 keV)    in 0.864 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Sun Jun  7 18:47:48 EDT 2009