batgrbproduct Analysis for Trigger=100585

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Fri Jan  4 18:41:44 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger100585/GCN_download_cron
======================================================================

  Trigger: 00100585      Segment: 000

  BAT Trigger Time: 125503577.28   [s; MET]
      Trigger Stop: 125503578.304   [s; MET]
               UTC: 2004-12-23T14:06:17.956380    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 100.120286808231   Dec: -37.0297252139607  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    17
     Image Trigger?:     NO
     Rate S/N Ratio:     86.6083136886985  [ if not an image trigger ]
     Image S/N Ratio:    17

  Flight Position:   [ source = BAT ]
    RA: 100.120286808231   Dec: -37.0297252139607  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 100.199469190866   Dec: -37.0701568725126  [deg; J2000]  
        { 06h 40m 47.9s , -37d 04' 12.6" }
         +/- 0.488240436745528 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.106670274617507 [arcmin] (formal 1-sigma fit error)
    SNR: 84.7085631293872
    RA  =   6h 40m 47.9s  (100.199469 deg.)
    Dec = -37d  4' 13" (-37.070157 deg.)
 
  Angular difference between Flight and Ground position is 4.501396 arcmin
 
  Partial Coding Fraction: 0.4765625    [ including projection effects ]

  Duration
     T90: 109.108000010252 +/- 1.85274283336699
        Measured from: 1.73999999463558
                   to: 110.848000004888     [s; relative to TRIGTIME]
     T50: 29.2559999972582 +/- 0.633782299557944
        Measured from: 19.16400000453
                   to: 48.4200000017881     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 35.0199999958277     
                   to: 36.0199999958277     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -10.5359999984503     
                   to: 145.944000005722     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     4.785775   8.027053   8.023611   2.460205
           0.090171   0.096458   0.088846   0.071818 [error]
 Peak      0.161562   0.299590   0.373917   0.127588
           0.009757   0.012244   0.013481   0.010079 [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 1.43e-06 3.34e-06 6.17e-06 2.73e-05 1.67e-05 3.84e-05   erg/cm2
              Error 6.14e-08 8.25e-08 1.06e-07 1.20e-06 2.79e-07 1.21e-06   erg/cm2
Peak flux Power-law 1.45e+00 2.12e+00 2.32e+00 4.74e+00 7.35e+00 1.06e+01   ph/cm2/s
              Error 1.36e-01 1.19e-01 1.02e-01 4.72e-01 3.15e-01 5.13e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.39e-06 3.34e-06 6.23e-06 2.48e-05 1.67e-05 3.51e-05   erg/cm2
              Error 9.06e-08 7.62e-08 1.71e-07 3.42e-06 2.84e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.45e+00 2.12e+00 2.32e+00 4.71e+00 7.34e+00 1.06e+01   ph/cm2/s
              Error 1.36e-01 1.19e-01 1.02e-01 4.69e-01 3.15e-01 5.11e-01   ph/cm2/s
 
Fluence        Band 1.38e-06 3.33e-06 6.22e-06 2.47e-05 1.67e-05 3.31e-05   erg/cm2
              Error 8.96e-08 8.31e-08 1.44e-07 3.42e-06 2.90e-07 0.00e+00   erg/cm2
Peak flux      Band 1.40e+00 2.13e+00 2.36e+00 4.23e+00 7.32e+00 9.31e+00   ph/cm2/s
              Error 1.74e-01 1.23e-01 1.35e-01 9.65e-01 3.20e-01 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.115    0.034    -      -           1.03e-02 1.87e-04   24.279 57
CPL   1.016    0.130     647.3 5000.0      1.12e-02 1.24e-03   22.993 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.874    0.077    -      -           6.40e-02 2.75e-03   45.568 57
CPL   0.777    0.242     780.0 5000.0      7.03e-02 1.77e-02   45.071  0
 
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: 101.248000 sec.
T50 in the 50-300 keV band: 26.112000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  156.480  -10.536  145.944
T90   109.108    1.740  110.848
T50    29.256   19.164   48.420
Peak    1.000   35.020   36.020

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  100.1995 -37.0702 0.0023   26.7   79.5      27.9682    84.7  TRIG_00100585       
------------------------------------------
 
Foreground time interval of the image:
-10.536 145.944 (delta_t = 156.480 [sec])
Background time interval of the image:
-299.280 -10.536 (delta_t = 288.744 [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  -10.536 sec. to  145.944 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.11473     ( -3.415620E-02   3.397548E-02) )
Norm@50keV  : 1.027972E-02    ( -1.879157E-04   1.869872E-04) )
------------------------------------------------------------
 Chi-Squared =      24.27905     using    59 PHA bins.
 Reduced chi-squared =     0.4259482     for     57 degrees of freedom
 Null hypothesis probability = 1.000
 
Photon flux (15-150 keV)    in 156.5 sec: 1.19414 ( -0.02383  0.02392 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.67419e-05 ( -2.78883e-07  2.78883e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -10.536 sec. to  145.944 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.01599     ( -0.140876   0.119042 )
Epeak [keV] : 647.319      ( -647.309 9352.68 )
Norm@50keV  : 1.121508E-02    ( -1.025270E-03   1.447373E-03) )
------------------------------------------------------------
 Chi-Squared =      22.99257     using    59 PHA bins.
 Reduced chi-squared =     0.4105816     for     56 degrees of freedom
 Null hypothesis probability = 1.000
 
Photon flux (15-150 keV)    in 156.5 sec: 1.19343 ( -0.02381  0.0239 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.67001e-05 ( -2.88899e-07  2.79039e-07 ) ergs/cm2
 
Band function
Time interval is from  -10.536 sec. to  145.944 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.733553   ( -9.26645   1.71154 )
beta        : -1.11652    ( -8.55294   0.357026 )
Epeak [keV] : 84.8896      ( -675.403 9324.50 )
Norm@50keV   : 1.947496E-02    ( -9.804294E-04   470984. )
------------------------------------------------------------
 Chi-Squared =      24.16595     using    59 PHA bins.
 Reduced chi-squared =     0.4393809     for     55 degrees of freedom
 Null hypothesis probability = 1.000
 
Photon flux (15-150 keV)    in 156.5 sec: 1.18557 ( -0.01548  0.02622 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.66862e-05 ( -2.90777e-07  2.88586e-07 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from   35.020 sec. to   36.020 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.873742     ( -7.703048E-02   7.610285E-02) )
Norm@50keV  : 6.400668E-02    ( -2.757549E-03   2.747782E-03) )
------------------------------------------------------------
 Chi-Squared =      45.56800     using    59 PHA bins.
 Reduced chi-squared =     0.7994386     for     57 degrees of freedom
 Null hypothesis probability = 0.862
 
Photon flux (15-150 keV)    in 1.000 sec: 7.34597 ( -0.31525  0.3156 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.25775e-07 ( -3.295e-08  3.2995e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   35.020 sec. to   36.020 sec.
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.777170     ( -0.325006   0.159802 )
Epeak [keV] : 780.007      ( -779.997 9219.99 )
Norm@50keV  : 7.028448E-02    ( -1.043637E-02   2.505735E-02) )
------------------------------------------------------------
 Chi-Squared =      45.07084     using    59 PHA bins.
 but latest trial  6.487431E-02 gives Chi-Squared =  0.502995
 Reduced chi-squared =     0.8048365     for     56 degrees of freedom
 Null hypothesis probability = 0.852
 
Photon flux (15-150 keV)    in 1.000 sec: 7.34450 ( -0.3152  0.31544 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.24512e-07 ( -3.3337e-08  3.1644e-08 ) ergs/cm2
 
Band function
Time interval is from   35.020 sec. to   36.020 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.796794   ( -14.9990   1.019001E-03) )
beta        : -0.873738    ( -8.063954E-02   7.413882E-02) )
Epeak [keV] : 19.6462      ( -19.5462 9980.33 )
Norm@50keV   : 9.177818E-02    ( -1127.10   5.794356E+06) )
------------------------------------------------------------
 Chi-Squared =      45.56799     using    59 PHA bins.
 Reduced chi-squared =     0.8285090     for     55 degrees of freedom
 Null hypothesis probability = 0.814
 
Photon flux (15-150 keV)    in 1.000 sec: 7.32091 ( -0.32035  0.32055 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.24109e-07 ( -3.3469e-08  3.3373e-08 ) ergs/cm2
 
Plot creation:
Fri Jan  4 18:53:23 EST 2008