batgrbproduct Analysis for Trigger=642453

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Jun  4 23:36:27 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger642453/GCN5_download_cron
======================================================================

  Trigger: 00642453      Segment: 000

  BAT Trigger Time: 455079624   [s; MET]
      Trigger Stop: 455079688   [s; MET]
               UTC: 2015-06-04T03:00:10.329640    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 238.343220351472   Dec: -46.6223945171144  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.31
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.31

  Flight Position:   [ source = BAT ]
    RA: 238.343220351472   Dec: -46.6223945171144  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 238.30710559739   Dec: -46.6185671212177  [deg; J2000]  
        { 15h 53m 13.7s , -46d 37' 06.8" }
         +/- 3.45870221849513 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.12200504524274 [arcmin] (formal 1-sigma fit error)
    SNR: 5.16704708759606
 
  Angular difference between Flight and Ground position is 1.505890 arcmin
 
  Partial Coding Fraction: 0.96875    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.269151   0.200629   0.039249   0.021734
           0.054330   0.053267   0.046784   0.045815 [error]
 Peak      0.269151   0.200629   0.039249   0.021734
           0.054330   0.053267   0.046784   0.045815 [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 7.26e-08 7.36e-08 5.25e-08 5.97e-08 2.22e-07 2.58e-07   erg/cm2
              Error 2.30e-08 2.49e-08 3.32e-08 8.07e-08 8.25e-08 1.26e-07   erg/cm2
Peak flux Power-law 3.74e-02 2.11e-02 7.53e-03 3.53e-03 6.79e-02 6.95e-02   ph/cm2/s
              Error 1.20e-02 6.89e-03 4.61e-03 4.48e-03 1.93e-02 2.02e-02   ph/cm2/s
 
Fluence   Cutoff-PL 7.51e-08 9.11e-08 5.65e-09 1.56e-12 1.72e-07 1.72e-07   erg/cm2
              Error 2.71e-08 3.77e-08 2.21e-08 2.98e-09 5.43e-08 5.42e-08   erg/cm2
Peak flux Cutoff-PL 3.70e-02 2.75e-02 9.80e-04 1.45e-07 6.55e-02 6.55e-02   ph/cm2/s
              Error 1.41e-02 1.05e-02 3.36e-03 2.40e-04 1.80e-02 1.80e-02   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    2.486    0.586    -      -           3.49e-04 1.66e-04   51.380 57
CPL  -3.900    0.696      26.1    8.4      1.27e+01 0.00e+00   46.420 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.486    0.586    -      -           3.49e-04 1.66e-04   51.380 57
CPL  -3.900    0.696      26.1    8.4      1.27e+01 0.00e+00   46.420 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  238.3071 -46.6186 0.0375   18.4   18.1       0.5544     5.2  TRIG_00642453       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [sec])
Background time interval of the image:

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    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.48558     ( -0.528219   0.643544 )
Norm@50keV  : 3.48729E-04    ( -0.000160692   0.000170427 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.38 using 59 PHA bins.
# Reduced chi-squared =         0.9014 for     57 degrees of freedom 
# Null hypothesis probability =   6.849826e-01
 
Photon flux (15-150 keV)    in 64 sec: 6.78954E-02 ( -0.0192892  0.01939 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.22186e-07 ( -7.74886e-08  8.74899e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -3.89983     ( 2.5504   3.94275 )
Epeak [keV] : 26.0602      ( -10.667 6.04821 )
Norm@50keV  : 12.6844    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.42 using 59 PHA bins.
# Reduced chi-squared =         0.8290 for     56 degrees of freedom 
# Null hypothesis probability =   8.154916e-01
 
Photon flux (15-150 keV)    in 64 sec: 6.55220E-02 ( -0.0179706  0.0180879 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.71847e-07 ( -4.98131e-08  5.87155e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.23314   ( -4.82306   -4.23309 )
beta        : -4.92522    ( 4.88556   2.29881 )
Epeak [keV] : 25.7915      ( -6.6069 5.38399 )
Norm@50keV   : 23.5883    ( -23.6944   15.2498 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.29 using 59 PHA bins.
# Reduced chi-squared =         0.8417 for     55 degrees of freedom 
# Null hypothesis probability =   7.921983e-01
 
Photon flux (15-150 keV)    in 64 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]    : 6.53075  (-1.40346  1.78279)
R^2/D10^2   : 0.187778  (-0.187778   0.332999)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.80 using 59 PHA bins.
# Reduced chi-squared =         0.8211 for     57 degrees of freedom 
# Null hypothesis probability =   8.303121e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.618e-08   4.474e-08
25- 50  9.085e-08   5.510e-08
50-150  1.163e-08   9.760e-09
15-150  1.787e-07   1.059e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 26.7121       (-11.4498      26.4842)
Norm        : 0.621503       (-0.273372     0.52985)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.19 using 59 PHA bins.
# Reduced chi-squared =         0.8630 for     57 degrees of freedom 
# Null hypothesis probability =   7.595172e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.591e-08   3.579e-08
25- 50  8.110e-08   4.456e-08
50-150  3.793e-08   3.193e-08
15-150  1.949e-07   1.048e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.49832        (-6.5767      193.331)
R1^2/D10^2  : 0.190992        (-0.144823      -0.144823)
kT2 [keV]   : 199.990        (      )
R2^2/D10^2  : 6.11680E-07    (-6.1168e-07   -6.1168e-07)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.80 using 59 PHA bins.
#Fit statistic : Chi-Squared =          46.78 using 59 PHA bins.
# Reduced chi-squared =         0.8510 for     55 degrees of freedom 
# Reduced chi-squared =         0.8506 for     55 degrees of freedom 
# Null hypothesis probability =   7.762740e-01
# Null hypothesis probability =   7.769276e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.603e-08   7.011e-02
25- 50  9.108e-08   6.243e-01
50-150  1.178e-08   1.517e+01
15-150  1.789e-07   1.627e+01

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.48558     ( -0.528219   0.643544 )
Norm@50keV  : 3.48729E-04    ( -0.000160692   0.000170427 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.38 using 59 PHA bins.
# Reduced chi-squared =         0.9014 for     57 degrees of freedom 
# Null hypothesis probability =   6.849826e-01
 
Photon flux (15-150 keV)    in 64 sec: 6.78954E-02 ( -0.0192892  0.01939 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.22186e-07 ( -7.74886e-08  8.74899e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -3.89983     ( 2.5504   3.94275 )
Epeak [keV] : 26.0602      ( -10.667 6.04821 )
Norm@50keV  : 12.6844    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.42 using 59 PHA bins.
# Reduced chi-squared =         0.8290 for     56 degrees of freedom 
# Null hypothesis probability =   8.154916e-01
 
Photon flux (15-150 keV)    in 64 sec: 6.55220E-02 ( -0.0179706  0.0180879 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.71847e-07 ( -4.98131e-08  5.87155e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.23314   ( -4.82306   -4.23309 )
beta        : -4.92522    ( 4.88556   2.29881 )
Epeak [keV] : 25.7915      ( -6.6069 5.38399 )
Norm@50keV   : 23.5883    ( -23.6944   15.2498 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.29 using 59 PHA bins.
# Reduced chi-squared =         0.8417 for     55 degrees of freedom 
# Null hypothesis probability =   7.921983e-01
 
Photon flux (15-150 keV)    in 64 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]    : 6.53075  (-1.40346  1.78279)
R^2/D10^2   : 0.187778  (-0.187778   0.332999)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.80 using 59 PHA bins.
# Reduced chi-squared =         0.8211 for     57 degrees of freedom 
# Null hypothesis probability =   8.303121e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.618e-08   4.162e-08
25- 50  9.085e-08   5.659e-08
50-150  1.163e-08   9.792e-09
15-150  1.787e-07   1.064e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 26.7121       (-11.4498      26.4842)
Norm        : 0.621503       (-0.273372     0.52985)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.19 using 59 PHA bins.
# Reduced chi-squared =         0.8630 for     57 degrees of freedom 
# Null hypothesis probability =   7.595172e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.591e-08   3.919e-08
25- 50  8.110e-08   4.601e-08
50-150  3.793e-08   3.016e-08
15-150  1.949e-07   1.122e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.49832        (-6.5767      193.331)
R1^2/D10^2  : 0.190992        (-0.144823      -0.144823)
kT2 [keV]   : 199.990        (      )
R2^2/D10^2  : 6.11680E-07    (-6.1168e-07   -6.1168e-07)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.80 using 59 PHA bins.
#Fit statistic : Chi-Squared =          46.78 using 59 PHA bins.
# Reduced chi-squared =         0.8510 for     55 degrees of freedom 
# Reduced chi-squared =         0.8506 for     55 degrees of freedom 
# Null hypothesis probability =   7.762740e-01
# Null hypothesis probability =   7.769276e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.603e-08   7.472e-02
25- 50  9.108e-08   6.294e-01
50-150  1.178e-08   1.346e+01
15-150  1.789e-07   1.513e+01
Plot creation:
Thu Jun  4 23:42:32 EDT 2015