batgrbproduct Analysis for Trigger=597722

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu May  1 19:29:21 EDT 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger597722/GCN5_download_cron
======================================================================

  Trigger: 00597722      Segment: 000

  BAT Trigger Time: 420582828.48   [s; MET]
      Trigger Stop: 420582828.992   [s; MET]
               UTC: 2014-04-30T20:33:36.527160    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 102.929387590687   Dec: 23.0094966592596  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.01
     Image Trigger?:     NO
     Rate S/N Ratio:     15.7162336455017  [ if not an image trigger ]
     Image S/N Ratio:    9.01

  Flight Position:   [ source = BAT ]
    RA: 102.929387590687   Dec: 23.0094966592596  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 102.941866970577   Dec: 23.0328017957096  [deg; J2000]  
        { 06h 51m 46.0s , +23d 01' 58.1" }
         +/- 0.978953735630722 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.3641976368621 [arcmin] (formal 1-sigma fit error)
    SNR: 31.3556120808807
 
  Angular difference between Flight and Ground position is 1.558900 arcmin
 
  Partial Coding Fraction: 1.03125    [ including projection effects ]

  Duration
     T90: 173.591999948025 +/- 3.69174647045451
        Measured from: 0.436000108718872
                   to: 174.028000056744     [s; relative to TRIGTIME]
     T50: 151.691999912262 +/- 8.98448439843169
        Measured from: 2.35600012540817
                   to: 154.04800003767     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.43999999761581     
                   to: 3.43999999761581     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.304000020027161     
                   to: 177.575999975204     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.853861   0.878482   0.439978   0.163896
           0.076104   0.080199   0.075215   0.079741 [error]
 Peak      0.077871   0.139879   0.080251   0.026769
           0.006836   0.007722   0.007102   0.006446 [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 2.50e-07 3.40e-07 3.41e-07 6.19e-07 1.13e-06 1.55e-06   erg/cm2
              Error 3.70e-08 3.63e-08 7.14e-08 2.59e-07 1.58e-07 3.36e-07   erg/cm2
Peak flux Power-law 7.65e-01 8.20e-01 6.23e-01 7.71e-01 2.50e+00 2.98e+00   ph/cm2/s
              Error 8.92e-02 5.99e-02 5.71e-02 1.43e-01 1.74e-01 2.22e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.52e-07 3.40e-07 3.37e-07 6.01e-07 1.12e-06 1.53e-06   erg/cm2
              Error 3.60e-08 3.66e-08 7.10e-08 3.96e-07 1.58e-07 4.02e-07   erg/cm2
Peak flux Cutoff-PL 7.07e-01 8.77e-01 6.38e-01 2.44e+00 2.58e+00 0.00e+00   ph/cm2/s
              Error 1.02e-01 7.94e-02 6.29e-02 1.83e-01 3.00e-01 0.00e+00   ph/cm2/s
 
Fluence        Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.996    0.225    -      -           6.90e-04 1.02e-04   55.060 57
CPL   2.093    0.000      41.5    0.0      5.88e-04 0.00e+00   54.490 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.396    0.120    -      -           2.05e-02 1.49e-03   65.280 57
CPL   0.794    0.558      92.4  129.2      4.34e-02 3.42e-02   61.200 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: 2.944000 sec.
T50 in the 50-300 keV band: 1.600000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  177.880   -0.304  177.576
T90   173.592    0.436  174.028
T50   151.692    2.356  154.048
Peak    1.000    2.440    3.440

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  102.9419 +23.0328 0.0061    9.1   19.7       1.2788    31.4  TRIG_00597722       
------------------------------------------
 
Foreground time interval of the image:
 -0.304   8.221 (delta_t =   8.525 [sec])
Background time interval of the image:
-179.480  -0.304 (delta_t = 179.176 [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   -0.304 sec. to  177.576 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.99647     ( -0.218318   0.231433 )
Norm@50keV  : 6.89923E-04    ( -0.000103126   0.000100217 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.06 using 59 PHA bins.
# Reduced chi-squared =         0.9659 for     57 degrees of freedom 
# Null hypothesis probability =   5.482404e-01
 
Photon flux (15-150 keV)    in 177.9 sec: 0.103321 ( -0.0106441  0.0106447 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.13165e-06 ( -1.54524e-07  1.60732e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.304 sec. to  177.576 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.09290     (     )
Epeak [keV] : 41.4759      (   )
Norm@50keV  : 5.88368E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.49 using 59 PHA bins.
# Reduced chi-squared =         0.9730 for     56 degrees of freedom 
# Null hypothesis probability =   5.323063e-01
 
Photon flux (15-150 keV)    in 177.9 sec: 0.103244 ( -0.0106357  0.01064 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.1213e-06 ( -1.5106e-07  1.65728e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.304 sec. to  177.576 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.45490   ( 1.45627   1.45627 )
beta        : -2.01245    ( 2.01092   0.231523 )
Epeak [keV] : 22.3961      ( -22.0721 157.215 )
Norm@50keV   : 1.85781E-03    ( -0.00189344   228494 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.03 using 59 PHA bins.
# Reduced chi-squared =          1.001 for     55 degrees of freedom 
# Null hypothesis probability =   4.735578e-01
 
Photon flux (15-150 keV)    in 177.9 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]    : 8.55149  (-1.09996  1.28633)
R^2/D10^2   : 8.37578E-02  (-0.0350682   0.060118)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.35 using 59 PHA bins.
# Reduced chi-squared =          1.410 for     57 degrees of freedom 
# Null hypothesis probability =   2.251647e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.061e-07   3.691e-08
25- 50  4.037e-07   6.218e-08
50-150  1.314e-07   4.375e-08
15-150  7.412e-07   1.033e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 63.3338       (-20.3695      38.6273)
Norm        : 0.521068       (-0.0912674     0.116932)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.06 using 59 PHA bins.
# Reduced chi-squared =          1.036 for     57 degrees of freedom 
# Null hypothesis probability =   4.001792e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.349e-07   3.273e-08
25- 50  3.633e-07   4.474e-08
50-150  4.321e-07   1.311e-07
15-150  1.030e-06   1.708e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.53513        (-1.5705      1.4342)
R1^2/D10^2  : 0.211501        (-0.102452      0.363972)
kT2 [keV]   : 51.1892        (-31.9175      -52.3367)
R2^2/D10^2  : 1.48528E-04    (-0.000120305   0.00210811)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.61 using 59 PHA bins.
# Reduced chi-squared =         0.9929 for     55 degrees of freedom 
# Null hypothesis probability =   4.895486e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.464e-07   5.721e-08
25- 50  3.394e-07   9.308e-08
50-150  7.107e-07   3.919e-07
15-150  1.296e-06   4.939e-07

Peak spectrum fit

Power-law model
Time interval is from    2.440 sec. to    3.440 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.39593     ( -0.119354   0.119882 )
Norm@50keV  : 2.05496E-02    ( -0.00149211   0.00148516 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.28 using 59 PHA bins.
# Reduced chi-squared =          1.145 for     57 degrees of freedom 
# Null hypothesis probability =   2.110477e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.50026 ( -0.174416  0.17445 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.9873e-07 ( -1.63575e-08  1.65407e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    2.440 sec. to    3.440 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.794140     ( -0.603717   0.513208 )
Epeak [keV] : 92.4374      ( -26.4137 231.956 )
Norm@50keV  : 4.34418E-02    ( -0.0201501   0.0483269 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.20 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     56 degrees of freedom 
# Null hypothesis probability =   2.947273e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.43619 ( -0.1838  0.18309 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    2.440 sec. to    3.440 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.06949   ( -2.58864   -2.09791 )
beta        : -1.75957    ( -0.369635   0.224386 )
Epeak [keV] : 43.3562      ( -12.4334 23.8984 )
Norm@50keV   : 0.713352    ( -0.730644   245.996 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.42 using 59 PHA bins.
# Reduced chi-squared =         0.9894 for     55 degrees of freedom 
# Null hypothesis probability =   4.968400e-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]    : 13.5414  (-1.11719  1.2656)
R^2/D10^2   : 0.414123  (-0.111406   0.146322)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          86.69 using 59 PHA bins.
# Reduced chi-squared =          1.521 for     57 degrees of freedom 
# Null hypothesis probability =   6.820972e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.608e-08   1.990e-09
25- 50  5.783e-08   5.325e-09
50-150  6.860e-08   1.114e-08
15-150  1.425e-07   1.290e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 10.2016       (-0.711999     0.712)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.61 using 59 PHA bins.
# Reduced chi-squared =          1.151 for     57 degrees of freedom 
# Null hypothesis probability =   2.030537e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.548e-08   2.150e-09
25- 50  4.902e-08   4.400e-09
50-150  1.075e-07   3.383e-08
15-150  1.820e-07   3.935e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.0016        (-1.50708      1.43872)
R1^2/D10^2  : 0.956105        (-0.316067      0.550868)
kT2 [keV]   : 55.4993        (-27.1767      -58.5367)
R2^2/D10^2  : 3.07522E-03    (-0.00230687   0.0129253)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.95 using 59 PHA bins.
# Reduced chi-squared =         0.9265 for     55 degrees of freedom 
# Null hypothesis probability =   6.298847e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.043e-08   3.525e-09
25- 50  5.548e-08   1.191e-08
50-150  1.200e-07   5.409e-08
15-150  1.959e-07   6.696e-08
Plot creation:
Thu May  1 20:06:12 EDT 2014