batgrbproduct Analysis for Trigger=539866

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Nov 28 23:38:37 EST 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger539866/GCN5_download_cron
======================================================================

  Trigger: 00539866      Segment: 000

  BAT Trigger Time: 375771947.136   [s; MET]
      Trigger Stop: 375771948.16   [s; MET]
               UTC: 2012-11-28T05:05:37.212960    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 300.582775438788   Dec: 54.3214660612968  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.3
     Image Trigger?:     NO
     Rate S/N Ratio:     9.79795897113271  [ if not an image trigger ]
     Image S/N Ratio:    7.3

  Flight Position:   [ source = BAT ]
    RA: 300.582775438788   Dec: 54.3214660612968  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 300.587585951505   Dec: 54.3003957304509  [deg; J2000]  
        { 20h 02m 21.0s , +54d 18' 01.4" }
         +/- 0.687881326386161 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.175107254629949 [arcmin] (formal 1-sigma fit error)
    SNR: 51.9089115914037
 
  Angular difference between Flight and Ground position is 1.275384 arcmin
 
  Partial Coding Fraction: 0.8828125    [ including projection effects ]

  Duration
     T90: 23.4359999895096 +/- 1.630612160051
        Measured from: 13.0880001187325
                   to: 36.524000108242     [s; relative to TRIGTIME]
     T50: 7.40399992465973 +/- 0.445654597849172
        Measured from: 17.512000143528
                   to: 24.9160000681877     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 21.6840000152588     
                   to: 22.6840000152588     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.00399994850158691     
                   to: 41.688000023365     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.402821   4.228983   2.523782   0.401668
           0.049631   0.052848   0.046620   0.042127 [error]
 Peak      0.339593   0.583649   0.550702   0.101177
           0.011305   0.013839   0.013616   0.008794 [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 1.19e-06 1.76e-06 1.93e-06 4.00e-06 6.11e-06 8.89e-06   erg/cm2
              Error 4.76e-08 3.98e-08 5.22e-08 2.43e-07 1.26e-07 2.73e-07   erg/cm2
Peak flux Power-law 3.65e+00 4.17e+00 3.42e+00 4.69e+00 1.29e+01 1.59e+01   ph/cm2/s
              Error 1.98e-01 1.39e-01 1.09e-01 3.13e-01 3.84e-01 4.58e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.06e-06 1.81e-06 1.98e-06 2.04e-06 6.89e-06 0.00e+00   erg/cm2
              Error 6.21e-08 4.43e-08 5.68e-08 4.14e-07 4.47e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.97e+00 4.34e+00 3.74e+00 2.44e+00 1.25e+01 1.35e+01   ph/cm2/s
              Error 2.52e-01 1.55e-01 1.41e-01 4.05e-01 4.01e-01 5.81e-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 1.36e+01 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    1.863    0.040    -      -           1.59e-02 3.28e-04   62.330 57
CPL   1.320    0.183      64.6    6.8      2.89e-02 5.75e-03   33.620 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.287    0.048    -      -           1.09e-01 3.07e-03   81.200 57
CPL   0.494    0.225     107.7   16.2      2.47e-01 5.65e-02   38.730 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: 18.368000 sec.
T50 in the 50-300 keV band: 5.760000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   41.692   -0.004   41.688
T90    23.436   13.088   36.524
T50     7.404   17.512   24.916
Peak    1.000   21.684   22.684

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  300.5876 +54.3004 0.0037   24.6  175.5       3.8286    51.9  TRIG_00539866       
------------------------------------------
 
Foreground time interval of the image:
 -0.004  19.465 (delta_t =  19.469 [sec])
Background time interval of the image:
-239.136 -66.486 (delta_t = 172.650 [sec])
-65.136  -0.004 (delta_t =  65.132 [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   -0.004 sec. to   41.688 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.86286     ( -0.0400978   0.0402204 )
Norm@50keV  : 1.59343E-02    ( -0.000328557   0.000328356 )
------------------------------------------------------------
# Chi-Squared =          62.33 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     57 degrees of freedom 
# Null hypothesis probability =   2.925190e-01
 
Photon flux (15-150 keV)    in 41.69 sec: 2.25153 ( -0.0539243  0.0541725 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.10725e-06 ( -1.26199e-07  1.26273e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.004 sec. to   41.688 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32014     ( -0.186444   0.179143 )
Epeak [keV] : 64.5938      ( -5.32768 8.30591 )
Norm@50keV  : 2.89123E-02    ( -0.00506059   0.00643488 )
------------------------------------------------------------
# Chi-Squared =          33.62 using 59 PHA bins.
# Reduced chi-squared =         0.6004 for     56 degrees of freedom 
# Null hypothesis probability =   9.922989e-01
 
Photon flux (15-150 keV)    in 41.69 sec: 2.14123 ( -0.06266  0.06318 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.88752e-06 ( -4.02475e-07  4.92192e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.004 sec. to   41.688 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.03141   ( -0.380414   0.685566 )
beta        : -2.14649    ( 2.14649   0.139602 )
Epeak [keV] : 53.7637      ( -11.7561 13.9375 )
Norm@50keV   : 4.24206E-02    ( -0.0160898   0.0727924 )
------------------------------------------------------------
# Chi-Squared =          31.19 using 59 PHA bins.
# Reduced chi-squared =         0.5671 for     55 degrees of freedom 
# Null hypothesis probability =   9.959943e-01
 
Photon flux (15-150 keV)    in 41.69 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.5909  (  )
R^2/D10^2   : 0.314596  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         410.72 using 59 PHA bins.
# Reduced chi-squared =         7.2056 for     57 degrees of freedom 
# Null hypothesis probability =   5.145303e-55
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.130e-07   2.084e-08
25- 50  1.851e-06   4.753e-08
50-150  2.217e-06   9.193e-08
15-150  4.581e-06   9.797e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 101.168       (-6.26242      10.0169)
Norm        : 9.61006       (-0.33157     0.336421)
------------------------------------------------------------
# Chi-Squared =          33.36 using 59 PHA bins.
# Reduced chi-squared =         0.5852 for     57 degrees of freedom 
# Null hypothesis probability =   9.947828e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.047e-06   3.419e-08
25- 50  1.815e-06   4.086e-08
50-150  2.961e-06   2.124e-07
15-150  5.823e-06   2.210e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.32503        (-0.611946      0.637134)
R1^2/D10^2  : 2.08142        (-0.501356      0.73338)
kT2 [keV]   : 22.9421        (-1.90004      2.43968)
R2^2/D10^2  : 3.19172E-02    (-0.0107813   0.0139114)
------------------------------------------------------------
# Chi-Squared =          43.54 using 59 PHA bins.
# Reduced chi-squared =         0.7916 for     55 degrees of freedom 
# Null hypothesis probability =   8.675321e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.092e-07   6.066e-08
25- 50  1.856e-06   8.109e-08
50-150  2.934e-06   1.922e-07
15-150  5.700e-06   2.814e-07

Peak spectrum fit

Power-law model
Time interval is from   21.684 sec. to   22.684 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28652     ( -0.0478857   0.0478973 )
Norm@50keV  : 0.108719    ( -0.00306511   0.00306503 )
------------------------------------------------------------
# Chi-Squared =          81.20 using 59 PHA bins.
# Reduced chi-squared =          1.425 for     57 degrees of freedom 
# Null hypothesis probability =   1.930739e-02
 
Photon flux (15-150 keV)    in 1 sec: 12.9387 ( -0.383968  0.384529 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.07792e-06 ( -3.26181e-08  3.26616e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   21.684 sec. to   22.684 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.494071     ( -0.2298   0.219237 )
Epeak [keV] : 107.655      ( -12.3495 19.9684 )
Norm@50keV  : 0.246999    ( -0.0489251   0.0641649 )
------------------------------------------------------------
# Chi-Squared =          38.73 using 59 PHA bins.
# Reduced chi-squared =         0.6916 for     56 degrees of freedom 
# Null hypothesis probability =   9.619243e-01
 
Photon flux (15-150 keV)    in 1 sec: 12.4623 ( -0.4003  0.4016 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.37722e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   21.684 sec. to   22.684 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.494010   ( -0.17865   0.221505 )
beta        : -10.00000    ( 2.02657e+10   2.02657e+10 )
Epeak [keV] : 107.636      ( -12.3485 19.9657 )
Norm@50keV   : 0.247014    ( -0.0489404   0.0641957 )
------------------------------------------------------------
# Chi-Squared =          38.73 using 59 PHA bins.
# Reduced chi-squared =         0.7042 for     55 degrees of freedom 
# Null hypothesis probability =   9.527707e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 18.6921  (  )
R^2/D10^2   : 0.749518  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         173.90 using 59 PHA bins.
# Reduced chi-squared =         3.0508 for     57 degrees of freedom 
# Null hypothesis probability =   9.370990e-14
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.177e-08   2.900e-09
25- 50  2.462e-07   1.000e-08
50-150  6.299e-07   3.040e-08
15-150  9.278e-07   3.070e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 54.4083       (     )
------------------------------------------------------------
# Chi-Squared =         153.02 using 59 PHA bins.
# Reduced chi-squared =         2.6846 for     57 degrees of freedom 
# Null hypothesis probability =   1.008940e-10
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.355e-07   6.880e-08
25- 50  2.606e-07   1.331e-07
50-150  5.716e-07   2.915e-07
15-150  9.677e-07   4.944e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.07986        (-1.28586      1.45313)
R1^2/D10^2  : 5.59057        (-2.05567      3.95923)
kT2 [keV]   : 26.0615        (-2.29489      3.3146)
R2^2/D10^2  : 0.199541    (-0.0749994   0.0868785)
------------------------------------------------------------
# Chi-Squared =          41.41 using 59 PHA bins.
# Reduced chi-squared =         0.7529 for     55 degrees of freedom 
# Null hypothesis probability =   9.124744e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.950e-08   1.012e-08
25- 50  2.517e-07   1.995e-08
50-150  6.989e-07   5.655e-08
15-150  1.040e-06   7.840e-08
Plot creation:
Thu Nov 29 00:05:52 EST 2012