batgrbproduct Analysis for Trigger=603810

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jul  9 09:30:07 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger603810/batgroup_hand_proc
======================================================================

  Trigger: 00603810      Segment: 000

  BAT Trigger Time: 426561233.408   [s; MET]
      Trigger Stop: 426561234.432   [s; MET]
               UTC: 2014-07-09T01:13:41.167180    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 304.638752617788   Dec: 51.2230855104488  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12.54
     Image Trigger?:     NO
     Rate S/N Ratio:     20.1246117974981  [ if not an image trigger ]
     Image S/N Ratio:    12.54

  Flight Position:   [ source = BAT ]
    RA: 304.638752617788   Dec: 51.2230855104488  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 304.666060052446   Dec: 51.2216113392899  [deg; J2000]  
        { 20h 18m 39.9s , +51d 13' 17.8" }
         +/- 0.769650689132371 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.323444912268411 [arcmin] (formal 1-sigma fit error)
    SNR: 44.2136129311941
 
  Angular difference between Flight and Ground position is 1.029963 arcmin
 
  Partial Coding Fraction: 0.6171875    [ including projection effects ]

  Duration
     T90: 98.6039999723434 +/- 7.72893802254728
        Measured from: -25.4679999947548
                   to: 73.1359999775887     [s; relative to TRIGTIME]
     T50: 24.7879999279976 +/- 1.73129779493771
        Measured from: -6.72399997711182
                   to: 18.0639999508858     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 15.4760000109673     
                   to: 16.4760000109673     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -46.0799999833107     
                   to: 93.4160000085831     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.664053   3.408517   2.303895   0.522835
           0.087923   0.087966   0.076791   0.064105 [error]
 Peak      0.092755   0.140213   0.111961   0.024144
           0.009924   0.010390   0.008951   0.006705 [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 9.34e-07 1.48e-06 1.77e-06 4.12e-06 5.38e-06 8.31e-06   erg/cm2
              Error 5.59e-08 5.21e-08 7.73e-08 3.94e-07 1.85e-07 4.47e-07   erg/cm2
Peak flux Power-law 1.02e+00 1.02e+00 7.18e-01 8.02e-01 3.08e+00 3.56e+00   ph/cm2/s
              Error 1.41e-01 9.01e-02 7.14e-02 1.58e-01 2.59e-01 2.92e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.40e-07 1.54e-06 1.83e-06 2.16e-06 5.19e-06 6.37e-06   erg/cm2
              Error 7.16e-08 6.03e-08 8.56e-08 6.88e-07 2.09e-07 7.17e-07   erg/cm2
Peak flux Cutoff-PL 8.47e-01 1.13e+00 7.81e-01 -------- 2.97e+00 3.06e+00   ph/cm2/s
              Error 1.70e-01 1.15e-01 8.56e-02 -------- 2.68e-01 3.17e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.742    0.061    -      -           4.18e-03 1.40e-04   69.090 57
CPL   1.235    0.272      78.0   20.4      7.34e-03 2.22e-03   57.800 56
 
The chi2 of BB fit is Chi-Squared Chi-Squared which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.507    0.132    -      -           2.46e-02 2.03e-03   65.950 57
CPL   0.454    0.693      73.1   25.0      8.43e-02 7.92e-02   57.120 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: 548.096000 sec.
T50 in the 50-300 keV band: 327.616000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  139.496  -46.080   93.416
T90    98.604  -25.468   73.136
T50    24.788   -6.724   18.064
Peak    1.000   15.476   16.476

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  304.6661    51.2216   0.0043    36.8546    -4.4803         6.2647692     44.214 TRIG_00603810                 
 
Foreground time interval of the image:
-46.080  15.693 (delta_t =  61.773 [sec])
Background time interval of the image:
-239.408 -46.080 (delta_t = 193.328 [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  -46.080 sec. to   93.416 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.74240     ( -0.0608261   0.0612451 )
Norm@50keV  : 4.17619E-03    ( -0.000139636   0.00013943 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.09 using 59 PHA bins.
# Reduced chi-squared =          1.212 for     57 degrees of freedom 
# Null hypothesis probability =   1.308741e-01
 
Photon flux (15-150 keV)    in 139.5 sec: 0.563118 ( -0.0201858  0.0202549 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.37809e-06 ( -1.84856e-07  1.8517e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -46.080 sec. to   93.416 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.23460     ( -0.280491   0.264005 )
Epeak [keV] : 78.0304      ( -11.5129 29.3646 )
Norm@50keV  : 7.34069E-03    ( -0.00182706   0.00262248 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.80 using 59 PHA bins.
# Reduced chi-squared =          1.032 for     56 degrees of freedom 
# Null hypothesis probability =   4.087169e-01
 
Photon flux (15-150 keV)    in 139.5 sec: 0.542747 ( -0.022366  0.022478 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.19059e-06 ( -2.09641e-07  2.09138e-07 ) ergs/cm2
 
Band function
Time interval is from  -46.080 sec. to   93.416 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.23468   ( -0.242336   0.220773 )
beta        : -10.0000    ( 10   1.77636e-15 )
Epeak [keV] : 78.0210      ( -9.34051 29.352 )
Norm@50keV   : 7.33926E-03    ( -0.00182899   0.00262408 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.80 using 59 PHA bins.
# Reduced chi-squared =          1.051 for     55 degrees of freedom 
# Null hypothesis probability =   3.723611e-01
 
Photon flux (15-150 keV)    in 139.5 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]    : 14.1373  (  )
R^2/D10^2   : 7.29109E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         213.27 using 59 PHA bins.
# Reduced chi-squared =         3.7416 for     57 degrees of freedom 
# Null hypothesis probability =   6.678824e-20
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.290e-07   2.762e-08
25- 50  1.611e-06   7.115e-08
50-150  2.131e-06   1.444e-07
15-150  4.171e-06   1.486e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 133.527       (-20.7127      19.7634)
Norm        : 2.30079       (-0.0954276     0.128552)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.30 using 59 PHA bins.
# Reduced chi-squared =          1.023 for     57 degrees of freedom 
# Null hypothesis probability =   4.273484e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.314e-07   5.643e-08
25- 50  1.514e-06   8.084e-08
50-150  2.842e-06   6.933e-07
15-150  5.187e-06   7.428e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.07101        (-1.25085      1.28071)
R1^2/D10^2  : 0.553336        (-0.225528      0.541055)
kT2 [keV]   : 22.6935        (-2.95928      4.4558)
R2^2/D10^2  : 9.63382E-03    (-0.00495272   0.00767515)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.40 using 59 PHA bins.
# Reduced chi-squared =          1.280 for     55 degrees of freedom 
# Null hypothesis probability =   7.891348e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.527e-07   1.030e-07
25- 50  1.555e-06   1.565e-07
50-150  2.766e-06   3.250e-07
15-150  5.073e-06   5.357e-07

Peak spectrum fit

Power-law model
Time interval is from   15.476 sec. to   16.476 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50748     ( -0.131629   0.132228 )
Norm@50keV  : 2.45903E-02    ( -0.00203282   0.00202872 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.95 using 59 PHA bins.
# Reduced chi-squared =          1.157 for     57 degrees of freedom 
# Null hypothesis probability =   1.949452e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.07604 ( -0.258622  0.259058 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.32995e-07 ( -2.06059e-08  2.07042e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   15.476 sec. to   16.476 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.453699     ( -0.752136   0.633607 )
Epeak [keV] : 73.0779      ( -12.9139 37.1445 )
Norm@50keV  : 8.42500E-02    ( -0.0434449   0.114871 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.12 using 59 PHA bins.
# Reduced chi-squared =          1.020 for     56 degrees of freedom 
# Null hypothesis probability =   4.333396e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.96644 ( -0.26829  0.26781 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   15.476 sec. to   16.476 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.35652E-02   ( -0.830163   1.7831 )
beta        : -2.22923    ( 2.22731   0.518498 )
Epeak [keV] : 63.0277      ( -21.3305 30.2504 )
Norm@50keV   : 0.135670    ( -0.0811316   1.81189 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.79 using 59 PHA bins.
# Reduced chi-squared =          1.014 for     55 degrees of freedom 
# Null hypothesis probability =   4.450717e-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]    : 14.7989  (-1.23798  1.38291)
R^2/D10^2   : 0.383606  (-0.106349   0.142324)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.13 using 59 PHA bins.
# Reduced chi-squared =          1.248 for     57 degrees of freedom 
# Null hypothesis probability =   9.875987e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.763e-08   2.665e-09
25- 50  6.916e-08   6.925e-09
50-150  1.025e-07   1.572e-08
15-150  1.893e-07   1.850e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-57.5584      -199.363)
Norm        : 12.7174       (-1.0292     1.02969)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.66 using 59 PHA bins.
# Reduced chi-squared =          1.082 for     57 degrees of freedom 
# Null hypothesis probability =   3.131170e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.167e-08   2.940e-09
25- 50  6.092e-08   7.175e-09
50-150  1.336e-07   4.138e-08
15-150  2.262e-07   5.490e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 11.0809        (      )
R1^2/D10^2  : 0.818698        (-0.353963      5.71878)
kT2 [keV]   : 38.7861        (-20.9876      -38.2222)
R2^2/D10^2  : 7.12909E-03    (-0.00683072   0.189633)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.46 using 59 PHA bins.
#Fit statistic : Chi-Squared =          57.43 using 59 PHA bins.
# Reduced chi-squared =          1.045 for     55 degrees of freedom 
# Reduced chi-squared =          1.044 for     55 degrees of freedom 
# Null hypothesis probability =   3.841294e-01
# Null hypothesis probability =   3.853578e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.293e-08   6.205e-09
25- 50  6.918e-08   2.302e-08
50-150  1.296e-07   6.401e-08
15-150  2.217e-07   8.556e-08
Plot creation:
Wed Jul  9 10:49:02 EDT 2014