batgrbproduct Analysis for Trigger=525477

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jul  2 20:33:28 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger525477/batgroup_hand_proc
======================================================================

  Trigger: 00525477      Segment: 000

  BAT Trigger Time: 362821850.944   [s; MET]
      Trigger Stop: 362821851.456   [s; MET]
               UTC: 2012-07-01T07:50:41.566840    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 80.3524070788699   Dec: -58.5615086474503  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.78
     Image Trigger?:     NO
     Rate S/N Ratio:     11.8743420870379  [ if not an image trigger ]
     Image S/N Ratio:    8.78

  Flight Position:   [ source = BAT ]
    RA: 80.3524070788699   Dec: -58.5615086474503  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 80.3376706363955   Dec: -58.5311810415543  [deg; J2000]  
        { 05h 21m 21.0s , -58d 31' 52.3" }
         +/- 1.26570177184365 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.456882936662758 [arcmin] (formal 1-sigma fit error)
    SNR: 21.7235442415779
 
  Angular difference between Flight and Ground position is 1.877237 arcmin
 
  Partial Coding Fraction: 0.609375    [ including projection effects ]

  Duration
     T90: 13.7879999279976 +/- 0.685521691838888
        Measured from: 0.912000000476837
                   to: 14.6999999284744     [s; relative to TRIGTIME]
     T50: 7.32799994945526 +/- 1.38882685668736
        Measured from: 4.60399997234344
                   to: 11.9319999217987     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 10.3600000143051     
                   to: 11.3600000143051     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0160000324249268     
                   to: 15.4399999976158     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.370242   0.634779   0.674266   0.190596
           0.032045   0.033160   0.031761   0.029182 [error]
 Peak      0.025923   0.062063   0.083975   0.021890
           0.008126   0.008849   0.008898   0.007728 [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 1.11e-07 2.68e-07 5.17e-07 2.45e-06 1.40e-06 3.34e-06   erg/cm2
              Error 1.24e-08 1.77e-08 3.04e-08 3.40e-07 7.95e-08 3.53e-07   erg/cm2
Peak flux Power-law 2.81e-01 4.38e-01 5.12e-01 1.16e+00 1.57e+00 2.39e+00   ph/cm2/s
              Error 8.49e-02 8.07e-02 6.63e-02 3.34e-01 2.11e-01 3.50e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.05e-07 2.71e-07 5.28e-07 1.87e-06 2.78e-06 0.00e+00   erg/cm2
              Error 1.58e-08 1.88e-08 3.62e-08 7.64e-07 7.61e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.47e-01 4.41e-01 5.40e-01 7.99e-01 1.55e+00 2.03e+00   ph/cm2/s
              Error 1.09e-01 8.55e-02 8.94e-02 5.53e-01 2.18e-01 5.86e-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    1.052    0.096    -      -           8.52e-03 4.55e-04   62.990 57
CPL   0.849    0.318     329.9    0.0      1.05e-02 3.52e-03   62.080 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.773    0.234    -      -           1.36e-02 1.89e-03   65.390 57
CPL   0.357    0.844     245.2    0.0      2.02e-02 2.31e-02   64.850 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: 14.272000 sec.
T50 in the 50-300 keV band: 6.912000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   15.456   -0.016   15.440
T90    13.788    0.912   14.700
T50     7.328    4.604   11.932
Peak    1.000   10.360   11.360

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
   80.3377   -58.5312   0.0089    32.7350   162.1824         1.2468863     21.724 TRIG_00525477                 
 
Foreground time interval of the image:
 -0.016  10.757 (delta_t =  10.773 [sec])
Background time interval of the image:
-60.944  -0.016 (delta_t =  60.928 [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   -0.016 sec. to   15.440 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.05225     ( -0.0971237   0.0957348 )
Norm@50keV  : 8.51737E-03    ( -0.000455531   0.000453907 )
------------------------------------------------------------
# Chi-Squared =          62.99 using 59 PHA bins.
# Reduced chi-squared =          1.105 for     57 degrees of freedom 
# Null hypothesis probability =   2.726413e-01
 
Photon flux (15-150 keV)    in 15.46 sec: 0.983898 ( -0.0542592  0.0543629 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.39844e-06 ( -7.93543e-08  7.96549e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.016 sec. to   15.440 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.848973     ( -0.390312   0.245899 )
Epeak [keV] : 329.870      ( -329.87 -329.87 )
Norm@50keV  : 1.04514E-02    ( -0.00224955   0.00479962 )
------------------------------------------------------------
# Chi-Squared =          62.08 using 59 PHA bins.
# Reduced chi-squared =          1.109 for     56 degrees of freedom 
# Null hypothesis probability =   2.685385e-01
 
Photon flux (15-150 keV)    in 15.46 sec: 0.973716 ( -0.057055  0.057104 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.77829e-06 ( -6.79993e-07  8.42663e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.016 sec. to   15.440 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99998   ( -97385.9   -97385.9 )
beta        : -1.07373    ( -0.111558   0.105005 )
Epeak [keV] : 24.5251      ( -24.238 6.19173 )
Norm@50keV   : 668.003    ( -722.056   1.61152e+06 )
------------------------------------------------------------
# Chi-Squared =          62.59 using 59 PHA bins.
# Reduced chi-squared =          1.138 for     55 degrees of freedom 
# Null hypothesis probability =   2.247928e-01
 
Photon flux (15-150 keV)    in 15.46 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]    : 22.1795  (  )
R^2/D10^2   : 3.34370E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         119.49 using 59 PHA bins.
# Reduced chi-squared =         2.0964 for     57 degrees of freedom 
# Null hypothesis probability =   2.511401e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.689e-08   5.403e-09
25- 50  2.491e-07   1.902e-08
50-150  9.157e-07   8.055e-08
15-150  1.212e-06   7.784e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 4.10463       (     )
------------------------------------------------------------
# Chi-Squared =         138.89 using 59 PHA bins.
# Reduced chi-squared =         2.4367 for     57 degrees of freedom 
# Null hypothesis probability =   8.690024e-09
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.580e-07   8.194e-08
25- 50  3.040e-07   1.577e-07
50-150  6.667e-07   3.465e-07
15-150  1.129e-06   5.842e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.02163        (-1.67305      1.95584)
R1^2/D10^2  : 0.456768        (-0.223185      0.541941)
kT2 [keV]   : 33.8089        (-5.16038      8.56614)
R2^2/D10^2  : 7.78849E-03    (-0.00389818   0.00554716)
------------------------------------------------------------
# Chi-Squared =          60.14 using 59 PHA bins.
# Reduced chi-squared =          1.094 for     55 degrees of freedom 
# Null hypothesis probability =   2.948944e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.023e-07   3.237e-08
25- 50  2.736e-07   5.844e-08
50-150  1.022e-06   2.445e-07
15-150  1.397e-06   2.814e-07

Peak spectrum fit

Power-law model
Time interval is from   10.360 sec. to   11.360 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.773223     ( -0.240942   0.22696 )
Norm@50keV  : 1.36470E-02    ( -0.00191225   0.00187402 )
------------------------------------------------------------
# Chi-Squared =          65.39 using 59 PHA bins.
# Reduced chi-squared =          1.147 for     57 degrees of freedom 
# Null hypothesis probability =   2.083909e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.57020 ( -0.210454  0.211571 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.61299e-07 ( -2.15592e-08  2.16387e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   10.360 sec. to   11.360 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.357105     ( -1.1661   0.521111 )
Epeak [keV] : 245.175      ( -245.18 -245.18 )
Norm@50keV  : 2.01961E-02    ( -0.00908329   0.0371071 )
------------------------------------------------------------
# Chi-Squared =          64.85 using 59 PHA bins.
# Reduced chi-squared =          1.158 for     56 degrees of freedom 
# Null hypothesis probability =   1.953174e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.54632 ( -0.21704  0.21805 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.594e-07 ( -2.274e-08  2.2324e-08 ) ergs/cm2
 
Band function
Time interval is from   10.360 sec. to   11.360 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.792792   ( 0.792792   0.792792 )
beta        : -0.773224    ( -0.226961   0.240821 )
Epeak [keV] : 20.0101      ( -20.0101 -20.0101 )
Norm@50keV   : 1.83542E-02    ( -0.00656416   0 )
------------------------------------------------------------
# Chi-Squared =          65.39 using 59 PHA bins.
# Reduced chi-squared =          1.189 for     55 degrees of freedom 
# Null hypothesis probability =   1.593734e-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]    : 26.1196  (-4.30748  5.90567)
R^2/D10^2   : 3.54440E-02  (-0.0160132   0.0259651)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          70.17 using 59 PHA bins.
# Reduced chi-squared =          1.231 for     57 degrees of freedom 
# Null hypothesis probability =   1.129678e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.102e-09   1.152e-09
25- 50  2.379e-08   5.590e-09
50-150  1.194e-07   2.629e-08
15-150  1.473e-07   3.311e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.998       (      )
Norm        : 6.29482       (-6.29482     -6.29482)
------------------------------------------------------------
# Chi-Squared =          96.50 using 59 PHA bins.
# Reduced chi-squared =          1.693 for     57 degrees of freedom 
# Null hypothesis probability =   8.452354e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.567e-08   8.605e-09
25- 50  3.015e-08   1.643e-08
50-150  6.612e-08   3.632e-08
15-150  1.119e-07   6.075e-08
Double BB
R1^2/D10^2  : 1.94369E+14        (      )
kT2 [keV]   : 26.5407        (-4.40106      6.08167)
R2^2/D10^2  : 3.36370E-02    (-0.015274   0.0211039)
------------------------------------------------------------
# Chi-Squared =          67.23 using 59 PHA bins.
# Chi-Squared =          67.14 using 59 PHA bins.
# Chi-Squared =          67.13 using 59 PHA bins.
# Reduced chi-squared =          1.222 for     55 degrees of freedom 
# Reduced chi-squared =          1.221 for     55 degrees of freedom 
# Reduced chi-squared =          1.221 for     55 degrees of freedom 
# Null hypothesis probability =   1.246875e-01
# Null hypothesis probability =   1.262682e-01
# Null hypothesis probability =   1.264462e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.744e-09   1.821e-09
25- 50  2.271e-08   5.445e-09
50-150  1.212e-07   2.880e-08
15-150  1.506e-07   3.303e-08
Plot creation:
Mon Jul  2 20:46:29 EDT 2012