batgrbproduct Analysis for Trigger=687492

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu May 26 10:07:19 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger687492/GCN5_download_cron
======================================================================

  Trigger: 00687492      Segment: 000

  BAT Trigger Time: 485832856   [s; MET]
      Trigger Stop: 485832920   [s; MET]
               UTC: 2016-05-25T01:33:59.682820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 103.530165020782   Dec: -0.17351014677238  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.19
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.19

  Flight Position:   [ source = BAT ]
    RA: 103.530165020782   Dec: -0.17351014677238  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 103.57497660927   Dec: -0.197861959960937  [deg; J2000]  
        { 06h 54m 18.0s , -00d 11' 52.3" }
         +/- 3.3570391042627 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.73744980186646 [arcmin] (formal 1-sigma fit error)
    SNR: 5.39202744535706
 
  Angular difference between Flight and Ground position is 3.060040 arcmin
 
  Partial Coding Fraction: 0.984375    [ 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     0.238997   0.209365  -0.018821   0.051345
           0.045496   0.047019   0.041394   0.037601 [error]
 Peak      0.238997   0.209365  -0.018821   0.051345
           0.045496   0.047019   0.041394   0.037601 [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 6.59e-08 6.35e-08 4.27e-08 4.48e-08 1.90e-07 2.18e-07   erg/cm2
              Error 1.82e-08 2.08e-08 2.62e-08 5.76e-08 6.69e-08 9.73e-08   erg/cm2
Peak flux Power-law 3.40e-02 1.83e-02 6.14e-03 2.68e-03 5.99e-02 6.11e-02   ph/cm2/s
              Error 9.54e-03 5.78e-03 3.65e-03 3.25e-03 1.59e-02 1.66e-02   ph/cm2/s
 
Fluence   Cutoff-PL 6.76e-08 8.49e-08 1.27e-08 6.39e-11 1.65e-07 1.65e-07   erg/cm2
              Error 2.08e-08 3.13e-08 2.16e-08 3.17e-09 4.89e-08 4.89e-08   erg/cm2
Peak flux Cutoff-PL 3.37e-02 2.50e-02 2.11e-03 5.75e-06 6.09e-02 6.09e-02   ph/cm2/s
              Error 1.09e-02 8.58e-03 3.29e-03 2.54e-04 1.49e-02 1.49e-02   ph/cm2/s
 
Fluence        Band 6.69e-08 8.49e-08 1.75e-08 2.92e-10 1.68e-07 1.68e-07   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    2.579    0.540    -      -           2.90e-04 1.36e-04   62.990 57
CPL  -1.110    4.673      25.9    9.6      1.03e-01 7.45e+03   57.010 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.579    0.540    -      -           2.90e-04 1.36e-04   62.990 57
CPL  -1.110    4.673      25.9    9.6      1.03e-01 7.45e+03   57.010 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
  103.5750  -0.1979 0.0357   10.9  -67.3       0.5065     5.4  TRIG_00687492       
------------------------------------------
 
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: 2.57865     ( -0.478211   0.601542 )
Norm@50keV  : 2.89941E-04    ( -0.00012996   0.000141383 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.99 using 59 PHA bins.
# Reduced chi-squared =          1.105 for     57 degrees of freedom 
# Null hypothesis probability =   2.726841e-01
 
Photon flux (15-150 keV)    in 64 sec: 5.98564E-02 ( -0.0157979  0.0159515 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.90207e-07 ( -6.28063e-08  7.10259e-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: -1.11000     ( -6.72604   2.61896 )
Epeak [keV] : 25.8523      ( -12.2347 6.90567 )
Norm@50keV  : 0.103350    ( -0.123469   14903.5 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.01 using 59 PHA bins.
# Reduced chi-squared =          1.018 for     56 degrees of freedom 
# Null hypothesis probability =   4.372150e-01
 
Photon flux (15-150 keV)    in 64 sec: 6.08769E-02 ( -0.0148027  0.0149005 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.65324e-07 ( -4.65402e-08  5.1305e-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       : 1.25386   ( -2.17865   -1.27784 )
beta        : -9.36964    ( 9.37124   19.3623 )
Epeak [keV] : 26.0185      ( -9.93795 6.72987 )
Norm@50keV   : 0.129864    ( -0.148746   167.299 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.99 using 59 PHA bins.
# Reduced chi-squared =          1.036 for     55 degrees of freedom 
# Null hypothesis probability =   4.010366e-01
 
Photon flux (15-150 keV)    in 64 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.68284e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 6.72889  (-1.44799  1.71456)
R^2/D10^2   : 0.150921  (-0.0921233   0.258238)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.99 using 59 PHA bins.
# Reduced chi-squared =         0.9999 for     57 degrees of freedom 
# Null hypothesis probability =   4.752932e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.731e-08   3.949e-08
25- 50  8.528e-08   4.624e-08
50-150  1.222e-08   9.705e-09
15-150  1.648e-07   7.542e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 25.5672       (-9.97845      18.9062)
Norm        : 0.582018       (-0.227602     0.407213)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.46 using 59 PHA bins.
# Reduced chi-squared =          1.043 for     57 degrees of freedom 
# Null hypothesis probability =   3.859983e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.920e-08   2.798e-08
25- 50  7.196e-08   4.016e-08
50-150  3.161e-08   2.712e-08
15-150  1.728e-07   8.932e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.28220        (-5.29685      -5.29685)
R1^2/D10^2  : 0.142318        (-0.126873      -0.126873)
kT2 [keV]   : 7.53730        (-7.37278      191.488)
R2^2/D10^2  : 6.40108E-02    (-0.104639   -0.104639)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.99 using 59 PHA bins.
# Reduced chi-squared =          1.036 for     55 degrees of freedom 
# Null hypothesis probability =   4.011144e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.757e-08   6.586e-06
25- 50  8.362e-08   3.878e-05
50-150  1.465e-08   3.133e-04
15-150  1.658e-07   3.824e-04

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: 2.57865     ( -0.478211   0.601542 )
Norm@50keV  : 2.89941E-04    ( -0.00012996   0.000141383 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.99 using 59 PHA bins.
# Reduced chi-squared =          1.105 for     57 degrees of freedom 
# Null hypothesis probability =   2.726841e-01
 
Photon flux (15-150 keV)    in 64 sec: 5.98564E-02 ( -0.0157979  0.0159515 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.90207e-07 ( -6.28063e-08  7.10259e-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: -1.11000     ( -6.72604   2.61896 )
Epeak [keV] : 25.8523      ( -12.2347 6.90567 )
Norm@50keV  : 0.103350    ( -0.123469   14903.5 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.01 using 59 PHA bins.
# Reduced chi-squared =          1.018 for     56 degrees of freedom 
# Null hypothesis probability =   4.372150e-01
 
Photon flux (15-150 keV)    in 64 sec: 6.08769E-02 ( -0.0148027  0.0149005 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.65324e-07 ( -4.65402e-08  5.1305e-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       : 1.78299   ( -2.61146   -1.7592 )
beta        : -9.37150    ( 9.37166   19.3578 )
Epeak [keV] : 26.4327      ( -10.5929 6.36835 )
Norm@50keV   : 0.302500    ( -0.272465   166.256 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.97 using 59 PHA bins.
# Reduced chi-squared =          1.036 for     55 degrees of freedom 
# Null hypothesis probability =   4.016649e-01
 
Photon flux (15-150 keV)    in 64 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.68284e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 6.72889  (-1.44799  1.71456)
R^2/D10^2   : 0.150921  (-0.0921233   0.258238)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.99 using 59 PHA bins.
# Reduced chi-squared =         0.9999 for     57 degrees of freedom 
# Null hypothesis probability =   4.752932e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.731e-08   3.894e-08
25- 50  8.528e-08   4.975e-08
50-150  1.222e-08   9.612e-09
15-150  1.648e-07   9.120e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 25.5672       (-9.97845      18.9062)
Norm        : 0.582018       (-0.227602     0.407213)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.46 using 59 PHA bins.
# Reduced chi-squared =          1.043 for     57 degrees of freedom 
# Null hypothesis probability =   3.859983e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.920e-08   3.100e-08
25- 50  7.196e-08   4.254e-08
50-150  3.161e-08   2.594e-08
15-150  1.728e-07   9.482e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.28220        (-5.29685      -5.29685)
R1^2/D10^2  : 0.142318        (-0.126873      -0.126873)
kT2 [keV]   : 7.53730        (-7.37278      191.488)
R2^2/D10^2  : 6.40108E-02    (-0.104639   -0.104639)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.99 using 59 PHA bins.
# Reduced chi-squared =          1.036 for     55 degrees of freedom 
# Null hypothesis probability =   4.011144e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.757e-08   4.864e-06
25- 50  8.362e-08   3.111e-05
50-150  1.465e-08   2.250e-04
15-150  1.658e-07   3.068e-04
Plot creation:
Thu May 26 10:14:10 EDT 2016