batgrbproduct Analysis for Trigger=597841

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat May  3 04:33:22 EDT 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger597841/GCN5_download_cron
======================================================================

  Trigger: 00597841      Segment: 000

  BAT Trigger Time: 420712232.448   [s; MET]
      Trigger Stop: 420712233.472   [s; MET]
               UTC: 2014-05-02T08:30:20.489000    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 319.15470216594   Dec: 49.0179516633632  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.76
     Image Trigger?:     NO
     Rate S/N Ratio:     17.7763888346312  [ if not an image trigger ]
     Image S/N Ratio:    7.76

  Flight Position:   [ source = BAT ]
    RA: 319.15470216594   Dec: 49.0179516633632  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 319.171852861158   Dec: 48.9744921151528  [deg; J2000]  
        { 21h 16m 41.2s , +48d 58' 28.2" }
         +/- 1.1805986775464 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.432074665271245 [arcmin] (formal 1-sigma fit error)
    SNR: 23.9946878834605
 
  Angular difference between Flight and Ground position is 2.693563 arcmin
 
  Partial Coding Fraction: 0.9921875    [ including projection effects ]

  Duration
     T90: 16.8879999518394 +/- 1.88342665131759
        Measured from: -0.95199990272522
                   to: 15.9360000491142     [s; relative to TRIGTIME]
     T50: 7.13199996948242 +/- 1.17337118667986
        Measured from: 1.18800008296967
                   to: 8.32000005245209     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.44400000572205     
                   to: 2.44400000572205     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.66400003433228     
                   to: 17.3919999599457     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.269443   0.339790   0.333661   0.111173
           0.023587   0.024428   0.021367   0.017620 [error]
 Peak      0.029880   0.046551   0.026597   0.015665
           0.005609   0.005798   0.005062   0.004227 [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 6.61e-08 1.44e-07 2.46e-07 9.71e-07 6.74e-07 1.43e-06   erg/cm2
              Error 9.31e-09 1.16e-08 2.07e-08 1.93e-07 5.18e-08 2.04e-07   erg/cm2
Peak flux Power-law 2.88e-01 2.90e-01 2.05e-01 2.30e-01 8.74e-01 1.01e+00   ph/cm2/s
              Error 7.02e-02 4.41e-02 4.14e-02 9.50e-02 1.29e-01 1.56e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.71e-08 1.45e-07 2.45e-07 9.52e-07 6.71e-07 1.41e-06   erg/cm2
              Error 9.35e-09 1.15e-08 1.56e-08 1.92e-07 5.12e-08 2.06e-07   erg/cm2
Peak flux Cutoff-PL 2.86e-01 2.91e-01 2.06e-01 2.15e-01 8.72e-01 9.87e-01   ph/cm2/s
              Error 7.49e-02 5.12e-02 4.29e-02 1.40e-01 1.31e-01 1.96e-01   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    1.225    0.132    -      -           3.51e-03 2.40e-04   51.270 57
CPL   1.227    0.133    9999.4    0.0      3.52e-03 4.33e-04   51.310 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.500    0.264    -      -           7.00e-03 1.09e-03   66.970 57
CPL   1.469    0.739     782.5    0.0      7.28e-03 1.23e-02   66.960 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: 16.896000 sec.
T50 in the 50-300 keV band: 7.168000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   19.056   -1.664   17.392
T90    16.888   -0.952   15.936
T50     7.132    1.188    8.320
Peak    1.000    1.444    2.444

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  319.1719 +48.9745 0.0080   10.5  142.0       0.9957    24.0  TRIG_00597841       
------------------------------------------
 
Foreground time interval of the image:
 -1.664  14.153 (delta_t =  15.817 [sec])
Background time interval of the image:
-239.448  -1.664 (delta_t = 237.784 [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   -1.664 sec. to   17.392 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.22497     ( -0.132326   0.1313 )
Norm@50keV  : 3.51143E-03    ( -0.000240108   0.000240102 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.27 using 59 PHA bins.
# Reduced chi-squared =         0.8994 for     57 degrees of freedom 
# Null hypothesis probability =   6.890166e-01
 
Photon flux (15-150 keV)    in 19.06 sec: 0.413677 ( -0.0294995  0.0296251 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.74318e-07 ( -5.16354e-08  5.19206e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.664 sec. to   17.392 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.22671     ( -0.138894   0.126767 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 3.51989E-03    ( -0.000240996   0.000625791 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.31 using 59 PHA bins.
# Reduced chi-squared =         0.9163 for     56 degrees of freedom 
# Null hypothesis probability =   6.525884e-01
 
Photon flux (15-150 keV)    in 19.06 sec: 0.414192 ( -0.030001  0.028971 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.70769e-07 ( -4.82428e-08  5.42486e-08 ) ergs/cm2
 
Band function
Time interval is from   -1.664 sec. to   17.392 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.972551   ( 0.973291   0.973291 )
beta        : -1.22495    ( -0.131301   0.132308 )
Epeak [keV] : 49.5989      ( -48.8756 -48.8756 )
Norm@50keV   : 6.45452E-03    ( -0.00248519   0.503427 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.27 using 59 PHA bins.
# Reduced chi-squared =         0.9321 for     55 degrees of freedom 
# Null hypothesis probability =   6.180411e-01
 
Photon flux (15-150 keV)    in 19.06 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]    : 20.1551  (-1.99072  2.28867)
R^2/D10^2   : 1.78888E-02  (-0.00524909   0.00725838)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         109.73 using 59 PHA bins.
# Reduced chi-squared =         1.9251 for     57 degrees of freedom 
# Null hypothesis probability =   3.408822e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.662e-08   3.812e-09
25- 50  1.333e-07   1.503e-08
50-150  4.017e-07   4.965e-08
15-150  5.616e-07   5.156e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 1.71710       (-0.11969     0.119673)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.79 using 59 PHA bins.
# Reduced chi-squared =          1.277 for     57 degrees of freedom 
# Null hypothesis probability =   7.753157e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.152e-08   7.062e-09
25- 50  1.568e-07   2.058e-08
50-150  3.439e-07   9.856e-08
15-150  5.822e-07   1.189e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.46783        (-1.41369      1.9806)
R1^2/D10^2  : 0.950236        (-0.645166      2.50636)
kT2 [keV]   : 29.3441        (-4.75133      8.34039)
R2^2/D10^2  : 4.86690E-03    (-0.00262463   0.00375828)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.36 using 59 PHA bins.
# Reduced chi-squared =         0.9520 for     55 degrees of freedom 
# Null hypothesis probability =   5.761047e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.484e-08   2.874e-08
25- 50  1.277e-07   3.196e-08
50-150  4.779e-07   9.158e-08
15-150  6.805e-07   1.230e-07

Peak spectrum fit

Power-law model
Time interval is from    1.444 sec. to    2.444 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50030     ( -0.261303   0.266648 )
Norm@50keV  : 6.99719E-03    ( -0.0011032   0.00108447 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.97 using 59 PHA bins.
# Reduced chi-squared =          1.175 for     57 degrees of freedom 
# Null hypothesis probability =   1.721416e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.873593 ( -0.128489  0.128566 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.63756e-08 ( -1.15089e-08  1.17625e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.444 sec. to    2.444 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.46859     ( -1.05008   0.427428 )
Epeak [keV] : 782.537      (   )
Norm@50keV  : 7.27775E-03    ( -0.00137597   0.0232858 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.96 using 59 PHA bins.
# Reduced chi-squared =          1.196 for     56 degrees of freedom 
# Null hypothesis probability =   1.497918e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.871884 ( -0.132014  0.129866 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.58343e-08 ( -1.324e-08  1.22426e-08 ) ergs/cm2
 
Band function
Time interval is from    1.444 sec. to    2.444 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.652988   ( 0.940165   5.54614 )
beta        : -1.61628    ( 1.60124   0.348437 )
Epeak [keV] : 53.1429      ( -53.2536 627.756 )
Norm@50keV   : 2.45090E-02    ( -0.0250367   994.406 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.66 using 59 PHA bins.
# Reduced chi-squared =          1.212 for     55 degrees of freedom 
# Null hypothesis probability =   1.347580e-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]    : 13.0240  (-2.29015  2.98597)
R^2/D10^2   : 0.160901  (-0.0831925   0.159197)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.65 using 59 PHA bins.
# Reduced chi-squared =          1.362 for     57 degrees of freedom 
# Null hypothesis probability =   3.585075e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.788e-09   1.764e-09
25- 50  1.998e-08   4.890e-09
50-150  2.145e-08   6.885e-09
15-150  4.721e-08   1.173e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-96.3527      -199.363)
Norm        : 3.56524       (-0.5217     0.522092)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.16 using 59 PHA bins.
# Reduced chi-squared =          1.178 for     57 degrees of freedom 
# Null hypothesis probability =   1.680314e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.878e-09   5.090e-09
25- 50  1.708e-08   9.540e-09
50-150  3.745e-08   2.076e-08
15-150  6.341e-08   3.532e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.21379        (-3.13587      2.69373)
R1^2/D10^2  : 0.446547        (-0.263032      0.404797)
kT2 [keV]   : 60.5898        (-60.5346      -60.5347)
R2^2/D10^2  : 9.25094E-04    (-0.000770961   0.0182188)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.16 using 59 PHA bins.
# Reduced chi-squared =          1.203 for     55 degrees of freedom 
# Null hypothesis probability =   1.440875e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.785e-09   4.063e-09
25- 50  1.885e-08   9.003e-09
50-150  4.135e-08   2.081e-08
15-150  6.798e-08   3.190e-08
Plot creation:
Sat May  3 05:27:04 EDT 2014