batgrbproduct Analysis for Trigger=642298

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jun  3 12:07:11 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger642298/GCN5_download_cron
======================================================================

  Trigger: 00642298      Segment: 000

  BAT Trigger Time: 454935096   [s; MET]
      Trigger Stop: 454935416   [s; MET]
               UTC: 2015-06-02T10:51:22.337100    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 296.526613982574   Dec: 36.179433822706  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    11.83
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    11.83

  Flight Position:   [ source = BAT ]
    RA: 296.526613982574   Dec: 36.179433822706  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 296.497880693239   Dec: 36.1877082131706  [deg; J2000]  
        { 19h 45m 59.5s , +36d 11' 15.7" }
         +/- 2.49386698325678 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.10784737742493 [arcmin] (formal 1-sigma fit error)
    SNR: 8.24435232991105
 
  Angular difference between Flight and Ground position is 1.477403 arcmin
 
  Partial Coding Fraction: 0.2402344    [ including projection effects ]

  Duration
     T90: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]
     T50: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 320 second)
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.145960   1.086735   0.556381   0.181004
           0.161287   0.162940   0.138184   0.120140 [error]
 Peak      1.145960   1.086735   0.556381   0.181004
           0.161287   0.162940   0.138184   0.120140 [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 4.47e-07 5.38e-07 4.68e-07 6.97e-07 1.70e-06 2.15e-06   erg/cm2
              Error 1.03e-07 8.56e-08 1.41e-07 4.22e-07 3.14e-07 5.75e-07   erg/cm2
Peak flux Power-law 1.19e-01 7.93e-02 3.45e-02 2.07e-02 2.43e-01 2.53e-01   ph/cm2/s
              Error 2.81e-02 1.25e-02 1.00e-02 1.16e-02 3.87e-02 3.97e-02   ph/cm2/s
 
Fluence   Cutoff-PL 4.49e-07 5.38e-07 4.64e-07 6.78e-07 1.69e-06 2.13e-06   erg/cm2
              Error 1.04e-07 8.61e-08 -------- 4.96e-07 3.14e-07 6.17e-07   erg/cm2
Peak flux Cutoff-PL 1.21e-01 7.91e-02 3.34e-02 1.92e-02 2.43e-01 2.54e-01   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   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    2.201    0.339    -      -           1.47e-03 3.15e-04   72.910 57
CPL   1.977    0.000       6.7    0.0      1.84e-03 0.00e+00   73.510 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.201    0.339    -      -           1.47e-03 3.15e-04   72.910 57
CPL   1.977    0.000       6.7    0.0      1.84e-03 0.00e+00   73.510 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  320.000    0.000  320.000
T90   320.000    0.000  320.000
T50   320.000    0.000  320.000
Peak  320.000    0.000  320.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  296.4979 +36.1877 0.0233   48.9  179.7       3.0706     8.2  TRIG_00642298       
------------------------------------------
 
Foreground time interval of the image:
  0.000 123.120 (delta_t = 123.120 [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  123.120 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.20094     ( -0.31805   0.360225 )
Norm@50keV  : 1.46647E-03    ( -0.000325221   0.000305231 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.91 using 59 PHA bins.
# Reduced chi-squared =          1.279 for     57 degrees of freedom 
# Null hypothesis probability =   7.611283e-02
 
Photon flux (15-150 keV)    in 123.1 sec: 0.242899 ( -0.0386401  0.0387412 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.69751e-06 ( -3.10937e-07  3.17219e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  123.120 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97661     (     )
Epeak [keV] : 6.66072      (   )
Norm@50keV  : 1.83826E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.51 using 59 PHA bins.
# Reduced chi-squared =          1.313 for     56 degrees of freedom 
# Null hypothesis probability =   5.826548e-02
 
Photon flux (15-150 keV)    in 123.1 sec: 0.243499 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.69232e-06 ( -3.05128e-07  3.22497e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  123.120 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -3.40095   ( 3.40095   3.40095 )
beta        : -2.20097    ( -0.360187   0.317979 )
Epeak [keV] : 27.8594      ( -27.8594 -27.8594 )
Norm@50keV   : 0.199311    ( -0.0442008   0.0414865 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.91 using 59 PHA bins.
# Reduced chi-squared =          1.326 for     55 degrees of freedom 
# Null hypothesis probability =   5.334095e-02
 
Photon flux (15-150 keV)    in 123.1 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]    : 8.90503  (-1.84183  2.28784)
R^2/D10^2   : 0.163187  (-0.0965005   0.250028)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          89.91 using 59 PHA bins.
# Reduced chi-squared =          1.577 for     57 degrees of freedom 
# Null hypothesis probability =   3.540263e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.084e-07   9.288e-08
25- 50  6.447e-07   1.558e-07
50-150  2.381e-07   1.105e-07
15-150  1.191e-06   3.257e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 56.3697       (-22.2098      45.5567)
Norm        : 1.27124       (-0.34003     0.508503)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.28 using 59 PHA bins.
# Reduced chi-squared =          1.338 for     57 degrees of freedom 
# Null hypothesis probability =   4.500633e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.891e-07   8.648e-08
25- 50  5.806e-07   1.227e-07
50-150  6.265e-07   2.778e-07
15-150  1.596e-06   3.744e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.36149        (-2.05723      3.04568)
R1^2/D10^2  : 2.52798        (-2.15432      73.7614)
kT2 [keV]   : 19.8033        (-8.52293      33.3928)
R2^2/D10^2  : 5.63357E-03    (-0.00510136   0.0313877)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.85 using 59 PHA bins.
# Reduced chi-squared =          1.361 for     55 degrees of freedom 
# Null hypothesis probability =   3.873835e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.765e-07   2.698e-07
25- 50  4.550e-07   2.439e-07
50-150  7.600e-07   4.815e-07
15-150  1.692e-06   8.305e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to  123.120 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.20094     ( -0.31805   0.360225 )
Norm@50keV  : 1.46647E-03    ( -0.000325221   0.000305231 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.91 using 59 PHA bins.
# Reduced chi-squared =          1.279 for     57 degrees of freedom 
# Null hypothesis probability =   7.611283e-02
 
Photon flux (15-150 keV)    in 123.1 sec: 0.242899 ( -0.0386401  0.0387412 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.69751e-06 ( -3.10937e-07  3.17219e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  123.120 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97661     (     )
Epeak [keV] : 6.66072      (   )
Norm@50keV  : 1.83826E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.51 using 59 PHA bins.
# Reduced chi-squared =          1.313 for     56 degrees of freedom 
# Null hypothesis probability =   5.826548e-02
 
Photon flux (15-150 keV)    in 123.1 sec: 0.243499 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.69232e-06 ( -3.05128e-07  3.22497e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  123.120 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -3.40095   ( 3.40095   3.40095 )
beta        : -2.20097    ( -0.360187   0.317979 )
Epeak [keV] : 27.8594      ( -27.8594 -27.8594 )
Norm@50keV   : 0.199311    ( -0.0442008   0.0414865 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.91 using 59 PHA bins.
# Reduced chi-squared =          1.326 for     55 degrees of freedom 
# Null hypothesis probability =   5.334095e-02
 
Photon flux (15-150 keV)    in 123.1 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]    : 8.90503  (-1.84183  2.28784)
R^2/D10^2   : 0.163187  (-0.0965005   0.250028)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          89.91 using 59 PHA bins.
# Reduced chi-squared =          1.577 for     57 degrees of freedom 
# Null hypothesis probability =   3.540263e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.084e-07   9.965e-08
25- 50  6.447e-07   1.714e-07
50-150  2.381e-07   1.150e-07
15-150  1.191e-06   3.431e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 56.3697       (-22.2098      45.5567)
Norm        : 1.27124       (-0.34003     0.508503)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.28 using 59 PHA bins.
# Reduced chi-squared =          1.338 for     57 degrees of freedom 
# Null hypothesis probability =   4.500633e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.891e-07   8.457e-08
25- 50  5.806e-07   1.339e-07
50-150  6.265e-07   2.619e-07
15-150  1.596e-06   3.831e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.36149        (-2.05723      3.04568)
R1^2/D10^2  : 2.52798        (-2.15432      73.7614)
kT2 [keV]   : 19.8033        (-8.52293      33.3928)
R2^2/D10^2  : 5.63357E-03    (-0.00510136   0.0304409)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.85 using 59 PHA bins.
# Reduced chi-squared =          1.361 for     55 degrees of freedom 
# Null hypothesis probability =   3.873835e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.765e-07   2.623e-07
25- 50  4.550e-07   2.349e-07
50-150  7.600e-07   4.666e-07
15-150  1.692e-06   8.128e-07
Plot creation:
Wed Jun  3 12:09:12 EDT 2015