batgrbproduct Analysis for Trigger=646603

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Jun 27 10:09:54 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger646603/GCN5_download_cron
======================================================================

  Trigger: 00646603      Segment: 000

  BAT Trigger Time: 456977583.296   [s; MET]
      Trigger Stop: 456977584.32   [s; MET]
               UTC: 2015-06-26T02:12:49.527100    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 111.341156726315   Dec: -37.7641175175662  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.71
     Image Trigger?:     NO
     Rate S/N Ratio:     11.8743420870379  [ if not an image trigger ]
     Image S/N Ratio:    8.71

  Flight Position:   [ source = BAT ]
    RA: 111.341156726315   Dec: -37.7641175175662  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 111.353336583123   Dec: -37.8030088424704  [deg; J2000]  
        { 07h 25m 24.8s , -37d 48' 10.8" }
         +/- 1.87541796041825 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.644924943507137 [arcmin] (formal 1-sigma fit error)
    SNR: 12.3873462980649
 
  Angular difference between Flight and Ground position is 2.403895 arcmin
 
  Partial Coding Fraction: 0.3789062    [ including projection effects ]

  Duration
     T90: 144 +/- 65.9696900098826
        Measured from: -47.2959998846054
                   to: 96.7040001153946     [s; relative to TRIGTIME]
     T50: 32 +/- 16
        Measured from: -15.2959998846054
                   to: 16.7040001153946     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 8.2039999961853     
                   to: 9.2039999961853     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -47.2960000038147     
                   to: 144.703999996185     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.148527   1.084697   0.700532   0.088038
           0.093193   0.096268   0.083646   0.073431 [error]
 Peak      0.021707   0.008860   0.009746   0.008544
           0.008849   0.009100   0.007826   0.006820 [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 4.29e-07 5.44e-07 5.02e-07 8.13e-07 1.75e-06 2.29e-06   erg/cm2
              Error 5.81e-08 5.07e-08 8.41e-08 2.70e-07 1.91e-07 3.62e-07   erg/cm2
Peak flux Power-law 2.49e-01 1.26e-01 3.92e-02 1.55e-02 4.23e-01 4.31e-01   ph/cm2/s
              Error 2.12e-01 1.08e-01 6.26e-02 1.03e-01 3.34e-01 3.44e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.30e-07 5.44e-07 5.02e-07 8.03e-07 1.75e-06 2.28e-06   erg/cm2
              Error 5.81e-08 5.63e-08 8.41e-08 1.56e-07 2.01e-07 4.88e-07   erg/cm2
Peak flux Cutoff-PL 2.61e-01 1.17e-01 3.12e-02 1.04e-02 4.16e-01 4.19e-01   ph/cm2/s
              Error 2.12e-01 9.80e-02 6.28e-02 1.03e-01 2.42e-01 2.46e-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    2.114    0.186    -      -           9.80e-04 1.18e-04   51.790 57
CPL   2.144    0.000     195.8    0.0      9.43e-04 6.45e-04   51.780 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.673    2.408    -      -           1.93e-03 2.20e-03   52.830 57
CPL   2.041    0.136      21.6    0.0      2.54e-03 0.00e+00   53.170 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: 60.992000 sec.
T50 in the 50-300 keV band: 19.584000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  192.000  -47.296  144.704
T90   144.000  -47.296   96.704
T50    32.000  -15.296   16.704
Peak    1.000    8.204    9.204

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  111.3533 -37.8030 0.0155   43.8  -28.5       1.9861    12.4  TRIG_00646603       
------------------------------------------
 
Foreground time interval of the image:
-47.296  15.205 (delta_t =  62.501 [sec])
Background time interval of the image:
-239.296 -47.296 (delta_t = 192.000 [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  -47.296 sec. to  144.704 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.11420     ( -0.180687   0.190637 )
Norm@50keV  : 9.80228E-04    ( -0.000119334   0.000116237 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.79 using 59 PHA bins.
# Reduced chi-squared =         0.9086 for     57 degrees of freedom 
# Null hypothesis probability =   6.703349e-01
 
Photon flux (15-150 keV)    in 192 sec: 0.155305 ( -0.0145485  0.014565 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.7511e-06 ( -1.89191e-07  1.91989e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -47.296 sec. to  144.704 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.14385     (     )
Epeak [keV] : 195.826      (   )
Norm@50keV  : 9.42778E-04    ( -0.000482178   0.000808384 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.78 using 59 PHA bins.
# Reduced chi-squared =         0.9247 for     56 degrees of freedom 
# Null hypothesis probability =   6.351031e-01
 
Photon flux (15-150 keV)    in 192 sec: 0.155331 ( -0.014621  0.01448 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.75036e-06 ( -2.11062e-07  1.91336e-07 ) ergs/cm2
 
Band function
Time interval is from  -47.296 sec. to  144.704 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.79399   ( -4.79399   -4.79399 )
beta        : -2.17317    ( -0.220915   0.200263 )
Epeak [keV] : 19.7679      ( -19.7679 3.85355 )
Norm@50keV   : 559.185    ( -51.6369   1.65333e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.22 using 59 PHA bins.
# Reduced chi-squared =         0.9312 for     55 degrees of freedom 
# Null hypothesis probability =   6.199166e-01
 
Photon flux (15-150 keV)    in 192 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]    : 9.17002  (-1.23898  1.45892)
R^2/D10^2   : 9.49819E-02  (-0.0412943   0.0737585)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          91.14 using 59 PHA bins.
# Reduced chi-squared =          1.599 for     57 degrees of freedom 
# Null hypothesis probability =   2.737299e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.014e-07   5.030e-08
25- 50  6.594e-07   8.506e-08
50-150  2.663e-07   7.607e-08
15-150  1.227e-06   1.592e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 59.4065       (-14.9867      22.7749)
Norm        : 0.803989       (-0.128689     0.151907)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.47 using 59 PHA bins.
# Reduced chi-squared =         0.9732 for     57 degrees of freedom 
# Null hypothesis probability =   5.325245e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.873e-07   5.587e-08
25- 50  5.877e-07   6.106e-08
50-150  6.632e-07   1.601e-07
15-150  1.638e-06   1.837e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.08250        (-0.944762      1.0805)
R1^2/D10^2  : 0.779145        (-0.421392      1.10464)
kT2 [keV]   : 19.8924        (-4.2282      7.10759)
R2^2/D10^2  : 3.51015E-03    (-0.00240137   0.00558055)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.79 using 59 PHA bins.
# Reduced chi-squared =         0.9053 for     55 degrees of freedom 
# Null hypothesis probability =   6.733237e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.398e-07   1.685e-07
25- 50  5.197e-07   1.447e-07
50-150  7.612e-07   4.137e-07
15-150  1.721e-06   5.813e-07

Peak spectrum fit

Power-law model
Time interval is from    8.204 sec. to    9.204 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.67296     ( -1.87131   2.94374 )
Norm@50keV  : 1.93270E-03    ( -0.00191828   0.00248412 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.83 using 59 PHA bins.
# Reduced chi-squared =         0.9269 for     57 degrees of freedom 
# Null hypothesis probability =   6.320607e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.423397 ( -0.423379  0.243915 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.02762e-08 ( -1.43112e-08  2.05222e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    8.204 sec. to    9.204 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.04128     ( -0.24431   0.0275741 )
Epeak [keV] : 21.5933      (   )
Norm@50keV  : 2.53806E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.17 using 59 PHA bins.
# Reduced chi-squared =         0.9495 for     56 degrees of freedom 
# Null hypothesis probability =   5.826442e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.415856 ( -0.240954  0.243968 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.10414e-08 ( -1.62843e-08  1.97101e-08 ) ergs/cm2
 
Band function
Time interval is from    8.204 sec. to    9.204 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.37187   ( 1.6287   1.6287 )
beta        : -3.14803    ( 2.67069   1.84132 )
Epeak [keV] : 17.0033      ( -8.22193 -8.22193 )
Norm@50keV   : 2562.39    ( -2562.26   3.87001e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.65 using 59 PHA bins.
# Reduced chi-squared =         0.9574 for     55 degrees of freedom 
# Null hypothesis probability =   5.647599e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.08598e-07 ( -1.08591e-07  -2.04736e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 3.88319  (-1.8099  5.77273)
R^2/D10^2   : 11.3129  (-11.3603   464.69)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.47 using 59 PHA bins.
# Reduced chi-squared =         0.9381 for     57 degrees of freedom 
# Null hypothesis probability =   6.081939e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.897e-09   5.730e-09
25- 50  2.949e-09   1.894e-09
50-150  2.989e-11   3.729e-11
15-150  1.188e-08   7.825e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 13.5797       (-13.5799      -13.5799)
Norm        : 7.74542       (-4.51537     4.88689)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.37 using 59 PHA bins.
# Reduced chi-squared =         0.9363 for     57 degrees of freedom 
# Null hypothesis probability =   6.119856e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.259e-09   1.714e-08
25- 50  5.120e-09   2.101e-08
50-150  7.386e-10   1.357e-08
15-150  1.412e-08   5.690e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.73278        (-1.67177      3.13449)
R1^2/D10^2  : 13.4620        (-13.3072      655.163)
kT2 [keV]   : 199.363        (-174.726      -199.363)
R2^2/D10^2  : 7.54194E-05    (-6.14112e-05   0.000648082)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.12 using 59 PHA bins.
# Reduced chi-squared =         0.8932 for     55 degrees of freedom 
# Null hypothesis probability =   6.975426e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.767e-09   5.675e-09
25- 50  3.378e-09   2.069e-09
50-150  1.999e-08   8.285e-09
15-150  3.213e-08   9.735e-09
Plot creation:
Sat Jun 27 10:14:05 EDT 2015