batgrbproduct Analysis for Trigger=540178

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Dec  2 08:32:01 EST 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger540178/GCN5_download_cron
======================================================================

  Trigger: 00540178      Segment: 000

  BAT Trigger Time: 376057552   [s; MET]
      Trigger Stop: 376057616   [s; MET]
               UTC: 2012-12-01T12:25:42.064740    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 13.4879874034949   Dec: -42.9520058447332  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.28
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.28

  Flight Position:   [ source = BAT ]
    RA: 13.4879874034949   Dec: -42.9520058447332  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 13.4731776453209   Dec: -42.9294052635789  [deg; J2000]  
        { 00h 53m 53.6s , -42d 55' 45.9" }
         +/- 2.31798615102696 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.19669639185353 [arcmin] (formal 1-sigma fit error)
    SNR: 9.15232577021022
 
  Angular difference between Flight and Ground position is 1.503987 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 85 +/- 21.095023109729
        Measured from: -22.9999998807907
                   to: 62.0000001192093     [s; relative to TRIGTIME]
     T50: 24 +/- 10.295630140987
        Measured from: -12.9999998807907
                   to: 11.0000001192093     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -9     
                   to: -8     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -24     
                   to: 71     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.551510   0.590055   0.316343   0.126599
           0.052838   0.054263   0.047977   0.042940 [error]
 Peak      0.030481   0.039906   0.024669   0.008785
           0.005838   0.006236   0.005475   0.004638 [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 1.58e-07 2.28e-07 2.45e-07 4.88e-07 7.82e-07 1.12e-06   erg/cm2
              Error 2.44e-08 2.40e-08 4.60e-08 1.86e-07 1.04e-07 2.33e-07   erg/cm2
Peak flux Power-law 2.68e-01 2.61e-01 1.77e-01 1.89e-01 7.82e-01 8.95e-01   ph/cm2/s
              Error 7.47e-02 4.67e-02 4.39e-02 9.36e-02 1.37e-01 1.64e-01   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 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.56e-01 2.70e-01 1.82e-01 1.28e-01 7.74e-01 8.35e-01   ph/cm2/s
              Error 8.74e-02 5.80e-02 4.82e-02 1.45e-01 1.41e-01 2.02e-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 8.35e-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    1.898    0.210    -      -           8.95e-04 1.20e-04   72.590 57
CPL   1.904    0.770    9990.8    0.0      8.87e-04 0.00e+00   72.590 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.557    0.312    -      -           6.16e-03 1.18e-03   69.310 57
CPL   1.240    1.374     115.7    0.0      9.05e-03 0.00e+00   69.120 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: 22.784000 sec.
T50 in the 50-300 keV band: 13.824000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   95.000  -24.000   71.000
T90    85.000  -23.000   62.000
T50    24.000  -13.000   11.000
Peak    1.000   -9.000   -8.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   13.4732 -42.9294 0.0210    4.3   -8.2       1.1604     9.2  TRIG_00540178       
------------------------------------------
 
Foreground time interval of the image:
-13.599  70.501 (delta_t =  84.100 [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
Time interval is from  -24.000 sec. to   71.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.89797     ( -0.205187   0.215738 )
Norm@50keV  : 8.94986E-04    ( -0.000121633   0.000118138 )
------------------------------------------------------------
# Chi-Squared =          72.59 using 59 PHA bins.
# Reduced chi-squared =          1.274 for     57 degrees of freedom 
# Null hypothesis probability =   7.982865e-02
 
Photon flux (15-150 keV)    in 95 sec: 0.128329 ( -0.0134193  0.0134207 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.81668e-07 ( -1.02387e-07  1.05081e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -24.000 sec. to   71.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.90354     ( -0.645679   0.893827 )
Epeak [keV] : 9990.75      (   )
Norm@50keV  : 8.87244E-04    (     )
------------------------------------------------------------
# Chi-Squared =          72.59 using 59 PHA bins.
# Reduced chi-squared =          1.296 for     56 degrees of freedom 
# Null hypothesis probability =   6.719375e-02
 
Photon flux (15-150 keV)    in 95 sec: 0.128276 ( -0.013398  0.013399 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from  -24.000 sec. to   71.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.51096   ( 1.51085   1.51085 )
beta        : -1.89912    ( 1.89893   0.205983 )
Epeak [keV] : 21.4290      ( -21.4354 -21.4354 )
Norm@50keV   : 2.00491E-03    ( -0.00112273   152044 )
------------------------------------------------------------
# Chi-Squared =          72.59 using 59 PHA bins.
# Reduced chi-squared =          1.320 for     55 degrees of freedom 
# Null hypothesis probability =   5.619331e-02
 
Photon flux (15-150 keV)    in 95 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]    : 9.82739  (-1.34499  1.62448)
R^2/D10^2   : 6.16329E-02  (-0.0268947   0.0462975)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         100.29 using 59 PHA bins.
# Reduced chi-squared =         1.7595 for     57 degrees of freedom 
# Null hypothesis probability =   3.512502e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.145e-07   2.105e-08
25- 50  2.776e-07   4.014e-08
50-150  1.377e-07   4.054e-08
15-150  5.298e-07   7.567e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 81.9760       (-26.785      52.9305)
Norm        : 0.592429       (-0.0904198     0.11831)
------------------------------------------------------------
# Chi-Squared =          75.03 using 59 PHA bins.
# Reduced chi-squared =          1.316 for     57 degrees of freedom 
# Null hypothesis probability =   5.495061e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.463e-07   2.242e-08
25- 50  2.422e-07   2.993e-08
50-150  3.475e-07   1.558e-07
15-150  7.359e-07   1.510e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.85232        (      )
R1^2/D10^2  : 0.337948        (-0.203878      0.949724)
kT2 [keV]   : 24.1177        (-7.82837      22.4175)
R2^2/D10^2  : 1.66064E-03    (-0.00146914   0.00282354)
------------------------------------------------------------
# Chi-Squared =          76.91 using 59 PHA bins.
# Chi-Squared =          74.17 using 59 PHA bins.
# Reduced chi-squared =          1.398 for     55 degrees of freedom 
# Reduced chi-squared =          1.349 for     55 degrees of freedom 
# Null hypothesis probability =   2.719536e-02
# Null hypothesis probability =   4.339746e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.509e-07   8.787e-08
25- 50  2.043e-07   1.125e-07
50-150  3.216e-07   1.889e-07
15-150  6.768e-07   3.495e-07

Peak spectrum fit

Power-law model
Time interval is from   -9.000 sec. to   -8.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.55699     ( -0.303827   0.319965 )
Norm@50keV  : 6.16377E-03    ( -0.00119642   0.00116547 )
------------------------------------------------------------
# Chi-Squared =          69.31 using 59 PHA bins.
# Reduced chi-squared =          1.216 for     57 degrees of freedom 
# Null hypothesis probability =   1.270384e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.781884 ( -0.137352  0.137393 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.79693e-08 ( -1.21151e-08  1.2394e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -9.000 sec. to   -8.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.23958     ( -1.55073   1.19808 )
Epeak [keV] : 115.749      ( -115.733 -115.733 )
Norm@50keV  : 9.05265E-03    (     )
------------------------------------------------------------
# Chi-Squared =          69.12 using 59 PHA bins.
# Reduced chi-squared =          1.234 for     56 degrees of freedom 
# Null hypothesis probability =   1.119694e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.773561 ( -0.141878  0.139596 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.77274e-08 ( -3.19323e-08  5.80906e-08 ) ergs/cm2
 
Band function
Time interval is from   -9.000 sec. to   -8.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.21927   ( 1.06227   1.06227 )
beta        : -5.98638    ( 5.32019   15.3202 )
Epeak [keV] : 109.320      ( -56.3216 -109.32 )
Norm@50keV   : 9.33865E-03    ( -0.00432181   0.00437002 )
------------------------------------------------------------
# Chi-Squared =          69.12 using 59 PHA bins.
# Reduced chi-squared =          1.257 for     55 degrees of freedom 
# Null hypothesis probability =   9.539876e-02
 
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]    : 14.0369  (-2.69812  3.4531)
R^2/D10^2   : 0.113232  (-0.0611363   0.125648)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          75.36 using 59 PHA bins.
# Reduced chi-squared =          1.322 for     57 degrees of freedom 
# Null hypothesis probability =   5.213745e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.712e-09   1.625e-09
25- 50  1.757e-08   5.023e-09
50-150  2.283e-08   8.745e-09
15-150  4.511e-08   1.327e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 198.686       (-56.5504      -141.753)
Norm        : 3.19294       (-0.559523     0.55902)
------------------------------------------------------------
# Chi-Squared =          69.14 using 59 PHA bins.
# Reduced chi-squared =          1.213 for     57 degrees of freedom 
# Null hypothesis probability =   1.299670e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.954e-09   4.484e-09
25- 50  1.529e-08   8.500e-09
50-150  3.351e-08   1.853e-08
15-150  5.676e-08   3.183e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.50376        (-1.82205      4.36117)
R1^2/D10^2  : 77.9746        (-77.2772      1.93939e+08)
kT2 [keV]   : 16.5384        (-3.666      6.98954)
R2^2/D10^2  : 5.92361E-02    (-0.0443365   0.0646201)
------------------------------------------------------------
# Chi-Squared =          68.05 using 59 PHA bins.
# Reduced chi-squared =          1.237 for     55 degrees of freedom 
# Null hypothesis probability =   1.112698e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.648e-09   3.169e-09
25- 50  1.470e-08   7.364e-09
50-150  2.783e-08   1.287e-08
15-150  5.018e-08   2.109e-08
Plot creation:
Sun Dec  2 08:37:24 EST 2012