batgrbproduct Analysis for Trigger=557845

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jun 11 07:12:18 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger557845/GCN5_download_cron
======================================================================

  Trigger: 00557845      Segment: 000

  BAT Trigger Time: 392526744   [s; MET]
      Trigger Stop: 392526808   [s; MET]
               UTC: 2013-06-10T03:12:13.343620    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 224.415905357673   Dec: 28.1911682712337  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    19.34
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    19.34

  Flight Position:   [ source = BAT ]
    RA: 224.415905357673   Dec: 28.1911682712337  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 224.413662145216   Dec: 28.1871597323147  [deg; J2000]  
        { 14h 57m 39.3s , +28d 11' 13.8" }
         +/- 2.38812820403116 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.38883600289727 [arcmin] (formal 1-sigma fit error)
    SNR: 8.77073603050238
 
  Angular difference between Flight and Ground position is 0.268177 arcmin
 
  Partial Coding Fraction: 0.96875    [ including projection effects ]

  Duration
     T90: 46.4159999489784 +/- 11.1468641255641
        Measured from: -2.50799989700317
                   to: 43.9080000519753     [s; relative to TRIGTIME]
     T50: 13.4359999299049 +/- 2.2004508837883
        Measured from: 1.5320001244545
                   to: 14.9680000543594     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 4.53200000524521     
                   to: 5.53200000524521     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -7.04000002145767     
                   to: 61.0159999728203     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.849372   1.389895   1.181141   0.308371
           0.050153   0.052664   0.048131   0.041747 [error]
 Peak      0.039164   0.085824   0.075314   0.006200
           0.006809   0.007329   0.007059   0.005732 [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 2.62e-07 5.55e-07 9.23e-07 3.49e-06 2.54e-06 5.23e-06   erg/cm2
              Error 2.15e-08 2.68e-08 4.70e-08 4.04e-07 1.18e-07 4.31e-07   erg/cm2
Peak flux Power-law 4.50e-01 5.44e-01 4.77e-01 7.16e-01 1.72e+00 2.19e+00   ph/cm2/s
              Error 7.97e-02 6.02e-02 5.47e-02 1.69e-01 1.71e-01 2.31e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.49e-07 5.66e-07 9.41e-07 2.46e-06 2.50e-06 4.22e-06   erg/cm2
              Error 2.60e-08 3.01e-08 5.24e-08 8.67e-07 1.29e-07 8.64e-07   erg/cm2
Peak flux Cutoff-PL 3.71e-01 5.92e-01 5.18e-01 2.76e-01 1.66e+00 1.76e+00   ph/cm2/s
              Error 9.57e-02 7.35e-02 6.57e-02 1.97e-01 1.78e-01 2.60e-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 1.91e+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    1.267    0.076    -      -           3.75e-03 1.57e-04   60.750 57
CPL   1.026    0.284     217.1  -62.8      4.87e-03 1.50e-03   58.620 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.192    0.162    -      -           1.47e-02 1.44e-03   75.280 57
CPL   0.202    0.798      93.7   65.3      4.49e-02 4.89e-02   69.410 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: 25.152000 sec.
T50 in the 50-300 keV band: 8.704000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   68.056   -7.040   61.016
T90    46.416   -2.508   43.908
T50    13.436    1.532   14.968
Peak    1.000    4.532    5.532

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  224.4137 +28.1872 0.0219   21.9 -167.1       2.9389     8.8  TRIG_00557845       
------------------------------------------
 
Foreground time interval of the image:
 -7.040  61.016 (delta_t =  68.056 [sec])
Background time interval of the image:
-12.499  -7.040 (delta_t =   5.459 [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   -7.040 sec. to   61.016 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.26682     ( -0.0763382   0.0759252 )
Norm@50keV  : 3.74656E-03    ( -0.000157444   0.000157444 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.75 using 59 PHA bins.
# Reduced chi-squared =          1.066 for     57 degrees of freedom 
# Null hypothesis probability =   3.424388e-01
 
Photon flux (15-150 keV)    in 68.06 sec: 0.444357 ( -0.0194809  0.0195105 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.54081e-06 ( -1.17866e-07  1.18259e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -7.040 sec. to   61.016 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.02647     ( -0.300821   0.26711 )
Epeak [keV] : 217.073      ( -91.5284 -217.073 )
Norm@50keV  : 4.87029E-03    ( -0.00118176   0.00182393 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.62 using 59 PHA bins.
# Reduced chi-squared =          1.047 for     56 degrees of freedom 
# Null hypothesis probability =   3.797345e-01
 
Photon flux (15-150 keV)    in 68.06 sec: 0.438709 ( -0.02052  0.020523 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.49854e-06 ( -1.29607e-07  1.28858e-07 ) ergs/cm2
 
Band function
Time interval is from   -7.040 sec. to   61.016 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99195   ( -14.9073   -4.99195 )
beta        : -1.34413    ( -0.0879511   0.0864056 )
Epeak [keV] : 26.9693      ( -3.852 2.97229 )
Norm@50keV   : 201.762    ( -8.4579   317.449 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.26 using 59 PHA bins.
# Reduced chi-squared =         0.9684 for     55 degrees of freedom 
# Null hypothesis probability =   5.412443e-01
 
Photon flux (15-150 keV)    in 68.06 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]    : 18.0370  (  )
R^2/D10^2   : 2.77087E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         167.83 using 59 PHA bins.
# Reduced chi-squared =         2.9445 for     57 degrees of freedom 
# Null hypothesis probability =   7.435861e-13
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.228e-07   1.086e-08
25- 50  5.686e-07   3.515e-08
50-150  1.344e-06   1.072e-07
15-150  2.035e-06   1.086e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 1.85278       (-0.0788542     0.0788358)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          97.94 using 59 PHA bins.
# Reduced chi-squared =          1.718 for     57 degrees of freedom 
# Null hypothesis probability =   6.076016e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.140e-07   1.412e-08
25- 50  6.039e-07   2.821e-08
50-150  1.325e-06   5.989e-08
15-150  2.242e-06   1.041e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.51322        (-1.19535      1.3014)
R1^2/D10^2  : 0.215901        (-0.0754328      0.131177)
kT2 [keV]   : 34.1727        (-5.50105      9.04785)
R2^2/D10^2  : 2.74621E-03    (-0.00141387   0.00218584)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.83 using 59 PHA bins.
# Reduced chi-squared =         0.9787 for     55 degrees of freedom 
# Null hypothesis probability =   5.193624e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.323e-07   3.263e-08
25- 50  5.942e-07   7.473e-08
50-150  1.704e-06   4.152e-07
15-150  2.530e-06   4.223e-07

Peak spectrum fit

Power-law model
Time interval is from    4.532 sec. to    5.532 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19195     ( -0.162424   0.161005 )
Norm@50keV  : 1.46880E-02    ( -0.00143934   0.00143882 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.28 using 59 PHA bins.
# Reduced chi-squared =          1.321 for     57 degrees of freedom 
# Null hypothesis probability =   5.283790e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.72214 ( -0.170726  0.170889 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49355e-07 ( -1.64297e-08  1.65836e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    4.532 sec. to    5.532 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.202478     ( -0.877418   0.718664 )
Epeak [keV] : 93.7099      ( -23.216 107.412 )
Norm@50keV  : 4.49498E-02    ( -0.0246166   0.0731002 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.41 using 59 PHA bins.
# Reduced chi-squared =          1.240 for     56 degrees of freedom 
# Null hypothesis probability =   1.074200e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.65853 ( -0.17827  0.17757 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.39058e-07 ( -1.8418e-08  1.8475e-08 ) ergs/cm2
 
Band function
Time interval is from    4.532 sec. to    5.532 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.389842   ( -1.17586   -0.405959 )
beta        : -1.73087    ( 1.73059   0.448446 )
Epeak [keV] : 68.4803      ( -31.5938 95.0085 )
Norm@50keV   : 0.100989    ( -0.108319   73.6726 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.43 using 59 PHA bins.
# Reduced chi-squared =          1.244 for     55 degrees of freedom 
# Null hypothesis probability =   1.053490e-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]    : 17.3717  (-1.97025  2.30491)
R^2/D10^2   : 0.129578  (-0.0440401   0.0641074)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.65 using 59 PHA bins.
# Reduced chi-squared =          1.362 for     57 degrees of freedom 
# Null hypothesis probability =   3.584914e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.915e-09   1.545e-09
25- 50  3.562e-08   4.895e-09
50-150  7.727e-08   1.608e-08
15-150  1.208e-07   1.620e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 7.04302       (-0.701286     0.701264)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          85.05 using 59 PHA bins.
# Reduced chi-squared =          1.492 for     57 degrees of freedom 
# Null hypothesis probability =   9.399955e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.754e-08   9.645e-09
25- 50  3.374e-08   1.833e-08
50-150  7.400e-08   4.039e-08
15-150  1.253e-07   6.100e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.9077        (-4.42048      4.29801)
R1^2/D10^2  : 0.374267        (-0.191557      0.865398)
kT2 [keV]   : 33.4224        (-28.5771      -35.1248)
R2^2/D10^2  : 9.78040E-03    (-0.00752763   0.0540642)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.36 using 59 PHA bins.
# Reduced chi-squared =          1.243 for     55 degrees of freedom 
# Null hypothesis probability =   1.065194e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.088e-08   5.472e-09
25- 50  3.624e-08   1.938e-08
50-150  9.436e-08   5.014e-08
15-150  1.415e-07   6.915e-08
Plot creation:
Tue Jun 11 07:30:29 EDT 2013