batgrbproduct Analysis for Trigger=557589

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Jun  7 18:34:07 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger557589/GCN5_download_cron
======================================================================

  Trigger: 00557589      Segment: 000

  BAT Trigger Time: 392245489.664   [s; MET]
      Trigger Stop: 392245490.688   [s; MET]
               UTC: 2013-06-06T21:04:39.020180    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 249.403240279661   Dec: 29.7909669508947  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.14
     Image Trigger?:     NO
     Rate S/N Ratio:     15.0996688705415  [ if not an image trigger ]
     Image S/N Ratio:    8.14

  Flight Position:   [ source = BAT ]
    RA: 249.403240279661   Dec: 29.7909669508947  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 249.389876749319   Dec: 29.7956977285804  [deg; J2000]  
        { 16h 37m 33.6s , +29d 47' 44.5" }
         +/- 2.00266205357038 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.719731153727395 [arcmin] (formal 1-sigma fit error)
    SNR: 11.2784724122565
 
  Angular difference between Flight and Ground position is 0.751498 arcmin
 
  Partial Coding Fraction: 0.96875    [ including projection effects ]

  Duration
     T90: 276.576000034809 +/- 19.3109676637375
        Measured from: 0.528000116348267
                   to: 277.104000151157     [s; relative to TRIGTIME]
     T50: 57.0080000162125 +/- 12.4515187985018
        Measured from: 105.808000147343
                   to: 162.816000163555     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 160.356000006199     
                   to: 161.356000006199     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.34399998188019     
                   to: 296.912000000477     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.322370   1.742493   1.296760   0.359367
           0.101064   0.103767   0.092046   0.084442 [error]
 Peak      0.066027   0.116491   0.114294   0.044767
           0.006622   0.007963   0.007868   0.006121 [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 3.94e-07 7.13e-07 9.92e-07 2.88e-06 2.85e-06 4.98e-06   erg/cm2
              Error 4.52e-08 4.93e-08 9.12e-08 5.72e-07 2.18e-07 6.42e-07   erg/cm2
Peak flux Power-law 5.87e-01 7.85e-01 7.72e-01 1.36e+00 2.59e+00 3.51e+00   ph/cm2/s
              Error 8.42e-02 6.77e-02 6.14e-02 2.37e-01 1.86e-01 2.80e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.80e-07 7.31e-07 1.00e-06 1.97e-06 2.79e-06 4.09e-06   erg/cm2
              Error 5.26e-08 6.00e-08 9.59e-08 1.18e-06 2.45e-07 1.22e-06   erg/cm2
Peak flux Cutoff-PL 5.69e-01 7.91e-01 7.84e-01 1.20e+00 2.58e+00 3.34e+00   ph/cm2/s
              Error 1.02e-01 7.18e-02 7.30e-02 4.25e-01 1.91e-01 4.60e-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    1.523    0.121    -      -           1.01e-03 6.98e-05   51.640 57
CPL   1.292    0.395     149.2    0.0      1.33e-03 0.00e+00   50.870 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.024    0.126    -      -           2.25e-02 1.59e-03   63.670 57
CPL   0.903    0.337     519.6    0.0      2.55e-02 1.17e-02   63.460 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: 162.944000 sec.
T50 in the 50-300 keV band: 55.872000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  298.256   -1.344  296.912
T90   276.576    0.528  277.104
T50    57.008  105.808  162.816
Peak    1.000  160.356  161.356

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  249.3899 +29.7957 0.0171   22.7 -158.8       0.5915    11.3  TRIG_00557589       
------------------------------------------
 
Foreground time interval of the image:
 -1.344  16.737 (delta_t =  18.081 [sec])
Background time interval of the image:
-190.763  -1.344 (delta_t = 189.419 [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   -1.344 sec. to  296.912 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52344     ( -0.120785   0.121574 )
Norm@50keV  : 1.01112E-03    ( -7.00176e-05   6.96599e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.64 using 59 PHA bins.
# Reduced chi-squared =         0.9059 for     57 degrees of freedom 
# Null hypothesis probability =   6.757784e-01
 
Photon flux (15-150 keV)    in 298.3 sec: 0.127040 ( -0.00859336  0.00860249 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.85067e-06 ( -2.16897e-07  2.18837e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.344 sec. to  296.912 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29187     ( -0.495543   0.294968 )
Epeak [keV] : 149.197      (   )
Norm@50keV  : 1.33037E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.87 using 59 PHA bins.
# Reduced chi-squared =         0.9085 for     56 degrees of freedom 
# Null hypothesis probability =   6.687454e-01
 
Photon flux (15-150 keV)    in 298.3 sec: 0.125510 ( -0.009089  0.00907 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.79079e-06 ( -2.4803e-07  2.42682e-07 ) ergs/cm2
 
Band function
Time interval is from   -1.344 sec. to  296.912 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 2.82317   ( -1.17883   -1.17883 )
beta        : -1.57996    ( 1.58391   0.151101 )
Epeak [keV] : 25.2063      ( -28.9277 60.0057 )
Norm@50keV   : 2.54274    ( -2.54273   56.598 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.24 using 59 PHA bins.
# Reduced chi-squared =         0.9134 for     55 degrees of freedom 
# Null hypothesis probability =   6.568059e-01
 
Photon flux (15-150 keV)    in 298.3 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]    : 14.5396  (-1.26012  1.40825)
R^2/D10^2   : 1.56488E-02  (-0.00433563   0.00592565)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         100.86 using 59 PHA bins.
# Reduced chi-squared =         1.7694 for     57 degrees of freedom 
# Null hypothesis probability =   3.072113e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.076e-07   2.958e-08
25- 50  8.009e-07   7.592e-08
50-150  1.136e-06   1.639e-07
15-150  2.144e-06   1.863e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 0.517406       (-0.0342408     0.0342398)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.06 using 59 PHA bins.
# Reduced chi-squared =         0.8957 for     57 degrees of freedom 
# Null hypothesis probability =   6.964135e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.844e-07   2.729e-08
25- 50  7.394e-07   6.503e-08
50-150  1.622e-06   3.921e-07
15-150  2.745e-06   4.737e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.18619        (-1.32856      1.70331)
R1^2/D10^2  : 0.198333        (-0.109933      0.288598)
kT2 [keV]   : 23.7053        (-4.12469      7.53444)
R2^2/D10^2  : 2.31778E-03    (-0.00145006   0.00239164)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.26 using 59 PHA bins.
# Reduced chi-squared =         0.9320 for     55 degrees of freedom 
# Null hypothesis probability =   6.182439e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.833e-07   1.188e-07
25- 50  7.171e-07   1.648e-07
50-150  1.638e-06   5.448e-07
15-150  2.739e-06   6.552e-07

Peak spectrum fit

Power-law model
Time interval is from  160.356 sec. to  161.356 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.02359     ( -0.126417   0.125073 )
Norm@50keV  : 2.24633E-02    ( -0.00158901   0.0015872 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.67 using 59 PHA bins.
# Reduced chi-squared =          1.117 for     57 degrees of freedom 
# Null hypothesis probability =   2.535007e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.58974 ( -0.18575  0.186129 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.409e-07 ( -1.91147e-08  1.92263e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  160.356 sec. to  161.356 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.902773     ( -0.493349   0.18114 )
Epeak [keV] : 519.627      ( -519.627 -519.627 )
Norm@50keV  : 2.54635E-02    ( -0.00715605   0.0162219 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.46 using 59 PHA bins.
# Reduced chi-squared =          1.133 for     56 degrees of freedom 
# Null hypothesis probability =   2.300944e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.57754 ( -0.19124  0.19103 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.39681e-07 ( -2.0019e-08  1.9859e-08 ) ergs/cm2
 
Band function
Time interval is from  160.356 sec. to  161.356 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.938273   ( 1.15587   6.15586 )
beta        : -2.65614    ( 1.12032   11.1203 )
Epeak [keV] : 701.730      ( -701.73 -701.73 )
Norm@50keV   : 2.45773E-02    ( -0.00172987   0.0215027 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.48 using 59 PHA bins.
# Reduced chi-squared =          1.154 for     55 degrees of freedom 
# Null hypothesis probability =   2.023639e-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]    : 21.8532  (-2.19898  2.52087)
R^2/D10^2   : 9.38163E-02  (-0.0268706   0.0368141)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         101.63 using 59 PHA bins.
# Reduced chi-squared =         1.7830 for     57 degrees of freedom 
# Null hypothesis probability =   2.555240e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.317e-09   1.184e-09
25- 50  4.380e-08   4.735e-09
50-150  1.563e-07   1.945e-08
15-150  2.084e-07   1.965e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 10.3689       (-0.763431     0.763401)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         110.27 using 59 PHA bins.
# Reduced chi-squared =         1.9346 for     57 degrees of freedom 
# Null hypothesis probability =   2.962514e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.582e-08   2.440e-09
25- 50  4.967e-08   1.093e-08
50-150  1.089e-07   4.411e-08
15-150  1.844e-07   4.946e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.64061        (-2.35664      2.66674)
R1^2/D10^2  : 0.972591        (-0.52017      1.66771)
kT2 [keV]   : 37.0155        (-8.17507      18.4694)
R2^2/D10^2  : 1.57573E-02    (-0.0107641   0.0192222)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.57 using 59 PHA bins.
# Reduced chi-squared =          1.156 for     55 degrees of freedom 
# Null hypothesis probability =   2.000571e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.677e-08   6.292e-09
25- 50  4.713e-08   1.478e-08
50-150  1.789e-07   8.130e-08
15-150  2.428e-07   8.590e-08
Plot creation:
Fri Jun  7 18:49:55 EDT 2013