batgrbproduct Analysis for Trigger=598819

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue May 13 09:16:33 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger598819/GCN5_download_cron
======================================================================

  Trigger: 00598819      Segment: 000

  BAT Trigger Time: 421615921.216   [s; MET]
      Trigger Stop: 421615922.24   [s; MET]
               UTC: 2014-05-12T19:31:49.213860    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 289.370983958512   Dec: -15.1000413136453  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.32
     Image Trigger?:     NO
     Rate S/N Ratio:     38.262252939418  [ if not an image trigger ]
     Image S/N Ratio:    9.32

  Flight Position:   [ source = BAT ]
    RA: 289.370983958512   Dec: -15.1000413136453  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 289.366409554665   Dec: -15.0874336662933  [deg; J2000]  
        { 19h 17m 27.9s , -15d 05' 14.8" }
         +/- 1.08987511597178 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.414527292071445 [arcmin] (formal 1-sigma fit error)
    SNR: 26.8981890466025
 
  Angular difference between Flight and Ground position is 0.801531 arcmin
 
  Partial Coding Fraction: 0.3515625    [ including projection effects ]

  Duration
     T90: 154.803999960423 +/- 4.78706592379787
        Measured from: -6.05199992656708
                   to: 148.752000033855     [s; relative to TRIGTIME]
     T50: 85.7879999279976 +/- 41.4023807773294
        Measured from: 41.1360000967979
                   to: 126.924000024796     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 121.955999970436     
                   to: 122.955999970436     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -22.8400000333786     
                   to: 186.291999995708     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     5.110041   7.220552   6.195047   1.970510
           0.116699   0.115953   0.100333   0.082537 [error]
 Peak      0.172097   0.284955   0.249979   0.090249
           0.008512   0.009746   0.009623   0.007320 [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 1.74e-06 3.31e-06 4.85e-06 1.52e-05 1.37e-05 2.51e-05   erg/cm2
              Error 7.95e-08 8.71e-08 1.09e-07 8.20e-07 2.79e-07 8.49e-07   erg/cm2
Peak flux Power-law 2.08e+00 2.23e+00 1.70e+00 2.11e+00 6.80e+00 8.11e+00   ph/cm2/s
              Error 1.55e-01 1.00e-01 7.94e-02 2.08e-01 2.80e-01 3.22e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.72e-06 3.29e-06 4.86e-06 1.49e-05 1.37e-05 2.48e-05   erg/cm2
              Error 1.01e-07 7.97e-08 1.09e-07 1.72e-06 2.77e-07 1.73e-06   erg/cm2
Peak flux Cutoff-PL 1.89e+00 2.29e+00 1.77e+00 1.42e+00 6.66e+00 7.37e+00   ph/cm2/s
              Error 1.98e-01 1.11e-01 9.64e-02 4.03e-01 2.96e-01 5.13e-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    1.448    0.039    -      -           6.85e-03 1.41e-04   45.880 57
CPL   1.445    0.094    9998.2    0.0      6.88e-03 6.55e-04   45.870 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.392    0.069    -      -           5.60e-02 2.19e-03   61.510 57
CPL   0.988    0.301     136.7  115.5      8.64e-02 2.81e-02   55.760 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: 149.824000 sec.
T50 in the 50-300 keV band: 58.560000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  209.132  -22.840  186.292
T90   154.804   -6.052  148.752
T50    85.788   41.136  126.924
Peak    1.000  121.956  122.956

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  289.3664 -15.0874 0.0072   41.7  163.9       3.9523    26.9  TRIG_00598819       
------------------------------------------
 
Foreground time interval of the image:
-22.840  14.185 (delta_t =  37.025 [sec])
Background time interval of the image:
-239.216 -22.840 (delta_t = 216.376 [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  -22.840 sec. to  186.292 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44816     ( -0.0391608   0.0390647 )
Norm@50keV  : 6.85288E-03    ( -0.000141077   0.000140867 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.88 using 59 PHA bins.
# Reduced chi-squared =         0.8048 for     57 degrees of freedom 
# Null hypothesis probability =   8.542836e-01
 
Photon flux (15-150 keV)    in 209.1 sec: 0.844137 ( -0.0206242  0.0207205 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.37168e-05 ( -2.78693e-07  2.78764e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -22.840 sec. to  186.292 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44481     ( -0.136739   0.0507141 )
Epeak [keV] : 9998.24      (   )
Norm@50keV  : 6.87536E-03    ( -0.000139412   0.00117149 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.87 using 59 PHA bins.
# Reduced chi-squared =         0.8190 for     56 degrees of freedom 
# Null hypothesis probability =   8.310463e-01
 
Photon flux (15-150 keV)    in 209.1 sec: 0.842626 ( -0.009872  0.021634 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.37289e-05 ( -2.762e-07  2.76807e-07 ) ergs/cm2
 
Band function
Time interval is from  -22.840 sec. to  186.292 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.33197   ( 1.27839   0.925278 )
beta        : -1.46173    ( 1.46537   0.055036 )
Epeak [keV] : 247.133      ( -187.989 -187.989 )
Norm@50keV   : 7.89407E-03    ( -0.00113538   814991 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.66 using 59 PHA bins.
# Reduced chi-squared =         0.8302 for     55 degrees of freedom 
# Null hypothesis probability =   8.110847e-01
 
Photon flux (15-150 keV)    in 209.1 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]    : 19.1727  (  )
R^2/D10^2   : 3.96136E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         582.58 using 59 PHA bins.
# Reduced chi-squared =         10.221 for     57 degrees of freedom 
# Null hypothesis probability =   3.535336e-88
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.965e-07   2.729e-08
25- 50  2.887e-06   9.096e-08
50-150  7.814e-06   2.499e-07
15-150  1.130e-05   2.457e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 3.54467       (-0.0716279     0.0715932)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         103.80 using 59 PHA bins.
# Reduced chi-squared =         1.8210 for     57 degrees of freedom 
# Null hypothesis probability =   1.512704e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.846e-06   4.412e-08
25- 50  3.552e-06   9.305e-08
50-150  7.789e-06   1.945e-07
15-150  1.319e-05   3.116e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.30589        (-0.628269      0.65764)
R1^2/D10^2  : 0.466717        (-0.105639      0.146838)
kT2 [keV]   : 32.8918        (-2.50891      3.14647)
R2^2/D10^2  : 5.14325E-03    (-0.0013632   0.00163657)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.47 using 59 PHA bins.
# Reduced chi-squared =          1.063 for     55 degrees of freedom 
# Null hypothesis probability =   3.490618e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.422e-06   1.263e-07
25- 50  3.431e-06   1.391e-07
50-150  8.740e-06   4.172e-07
15-150  1.359e-05   4.903e-07

Peak spectrum fit

Power-law model
Time interval is from  121.956 sec. to  122.956 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.39167     ( -0.0690208   0.0692248 )
Norm@50keV  : 5.59567E-02    ( -0.00219396   0.00219354 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.51 using 59 PHA bins.
# Reduced chi-squared =          1.079 for     57 degrees of freedom 
# Null hypothesis probability =   3.178929e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.80169 ( -0.279456  0.279927 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.41619e-07 ( -2.30843e-08  2.31368e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  121.956 sec. to  122.956 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.987957     ( -0.310984   0.290168 )
Epeak [keV] : 136.700      ( -37.186 193.765 )
Norm@50keV  : 8.64271E-02    ( -0.0227088   0.0334789 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.76 using 59 PHA bins.
# Reduced chi-squared =         0.9957 for     56 degrees of freedom 
# Null hypothesis probability =   4.838326e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.66172 ( -0.29506  0.29595 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.30253e-07 ( -2.4977e-08  2.4825e-08 ) ergs/cm2
 
Band function
Time interval is from  121.956 sec. to  122.956 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.747117   ( -0.443061   0.664765 )
beta        : -1.65012    ( 1.65009   0.194068 )
Epeak [keV] : 94.9804      ( -36.3062 117.049 )
Norm@50keV   : 0.117510    ( -0.0475291   0.176224 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.32 using 59 PHA bins.
# Reduced chi-squared =         0.9876 for     55 degrees of freedom 
# Null hypothesis probability =   5.005733e-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]    : 16.9446  (  )
R^2/D10^2   : 0.523043  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         159.76 using 59 PHA bins.
# Reduced chi-squared =         2.8028 for     57 degrees of freedom 
# Null hypothesis probability =   1.111309e-11
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.061e-08   2.355e-09
25- 50  1.351e-07   6.800e-09
50-150  2.766e-07   1.925e-08
15-150  4.423e-07   2.045e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 28.2827       (-1.1106     1.11042)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.82 using 59 PHA bins.
# Reduced chi-squared =          1.313 for     57 degrees of freedom 
# Null hypothesis probability =   5.682759e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.044e-08   2.890e-09
25- 50  1.355e-07   5.800e-09
50-150  2.972e-07   1.305e-08
15-150  5.031e-07   2.055e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.14491        (-1.96975      1.91431)
R1^2/D10^2  : 2.62704        (-1.03215      2.67234)
kT2 [keV]   : 31.7084        (-6.69743      13.9352)
R2^2/D10^2  : 4.55444E-02    (-0.0311457   0.0641135)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.33 using 59 PHA bins.
# Reduced chi-squared =          1.170 for     55 degrees of freedom 
# Null hypothesis probability =   1.823516e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.004e-08   7.485e-09
25- 50  1.376e-07   1.555e-08
50-150  3.403e-07   8.110e-08
15-150  5.279e-07   8.925e-08
Plot creation:
Tue May 13 09:20:22 EDT 2014