batgrbproduct Analysis for Trigger=597570

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Apr 29 19:11:36 EDT 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger597570/GCN5_download_cron
======================================================================

  Trigger: 00597570      Segment: 000

  BAT Trigger Time: 420470020.416   [s; MET]
      Trigger Stop: 420470020.432   [s; MET]
               UTC: 2014-04-29T13:13:28.468540    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 272.159291950148   Dec: -20.4036481092704  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    14.7
     Image Trigger?:     NO
     Rate S/N Ratio:     71.7425954367418  [ if not an image trigger ]
     Image S/N Ratio:    14.7

  Flight Position:   [ source = BAT ]
    RA: 272.159291950148   Dec: -20.4036481092704  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 272.159755930618   Dec: -20.4108722255144  [deg; J2000]  
        { 18h 08m 38.3s , -20d 24' 39.1" }
         +/- 1.2646849725318 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.434650706746377 [arcmin] (formal 1-sigma fit error)
    SNR: 21.7484994000738
 
  Angular difference between Flight and Ground position is 0.434232 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 0.175999939441681 +/- 0.0533666929262319
        Measured from: -0.00799989700317383
                   to: 0.168000042438507     [s; relative to TRIGTIME]
     T50: 0.0479999184608459 +/- 0.0126491362748289
        Measured from: 0.00400012731552124
                   to: 0.0520000457763672     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.396000027656555     
                   to: 0.603999972343445     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0199999809265137     
                   to: 0.223999977111816     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.072108   0.074726   0.021044   0.004262
           0.004697   0.004563   0.002855   0.001961 [error]
 Peak      0.080281   0.083381   0.025915   0.003854
           0.007512   0.006851   0.005078   0.004231 [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 2.31e-08 2.53e-08 1.97e-08 2.52e-08 7.75e-08 9.33e-08   erg/cm2
              Error 2.36e-09 1.95e-09 2.54e-09 6.14e-09 6.40e-09 9.69e-09   erg/cm2
Peak flux Power-law 7.84e-01 5.31e-01 2.35e-01 1.44e-01 1.62e+00 1.69e+00   ph/cm2/s
              Error 1.11e-01 5.48e-02 4.05e-02 4.59e-02 1.68e-01 1.74e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.11e-08 2.98e-08 1.74e-08 3.41e-09 7.12e-08 7.17e-08   erg/cm2
              Error 2.65e-09 3.04e-09 3.67e-09 3.95e-09 6.84e-09 7.78e-09   erg/cm2
Peak flux Cutoff-PL 7.10e-01 6.23e-01 2.03e-01 2.03e-02 1.55e+00 1.56e+00   ph/cm2/s
              Error 1.26e-01 8.25e-02 5.78e-02 3.56e-02 1.72e-01 1.74e-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    2.360    0.134    -      -           3.29e-02 3.19e-03   73.940 57
CPL   0.923    0.858      29.2    8.2      2.42e-01 4.71e-01   61.320 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.176    0.187    -      -           9.91e-03 1.31e-03   59.210 57
CPL   0.643    1.200      33.3    8.8      8.65e-02 3.14e-01   51.970 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: 0.192000 sec.
T50 in the 50-300 keV band: 0.128000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.244   -0.020    0.224
T90     0.176   -0.008    0.168
T50     0.048    0.004    0.052
Peak    1.000   -0.396    0.604

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  272.1598 -20.4109 0.0089   14.4   -9.3       0.1704    21.7  TRIG_00597570       
------------------------------------------
 
Foreground time interval of the image:
 -0.020   0.224 (delta_t =   0.244 [sec])
Background time interval of the image:
-48.115  -0.020 (delta_t =  48.095 [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   -0.020 sec. to    0.224 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.36009     ( -0.131364   0.137451 )
Norm@50keV  : 3.28501E-02    ( -0.00320912   0.00316494 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.94 using 59 PHA bins.
# Reduced chi-squared =          1.297 for     57 degrees of freedom 
# Null hypothesis probability =   6.511500e-02
 
Photon flux (15-150 keV)    in 0.244 sec: 5.93914 ( -0.462722  0.463162 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.7509e-08 ( -6.38165e-09  6.41537e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.020 sec. to    0.224 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.922874     ( -0.954103   0.76146 )
Epeak [keV] : 29.1836      ( -11.3918 5.0993 )
Norm@50keV  : 0.241590    ( -0.24209   0.700653 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.32 using 59 PHA bins.
# Reduced chi-squared =          1.095 for     56 degrees of freedom 
# Null hypothesis probability =   2.912472e-01
 
Photon flux (15-150 keV)    in 0.244 sec: 5.75778 ( -0.47345  0.47358 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.11843e-08 ( -6.68877e-09  6.98865e-09 ) ergs/cm2
 
Band function
Time interval is from   -0.020 sec. to    0.224 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.733982   ( -1.24098   -0.0240555 )
beta        : -2.95576    ( -1.18179   0.40867 )
Epeak [keV] : 28.6908      ( -4.28434 4.16381 )
Norm@50keV   : 3.52169    ( -3.43131   2079.83 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.74 using 59 PHA bins.
# Reduced chi-squared =          1.050 for     55 degrees of freedom 
# Null hypothesis probability =   3.744377e-01
 
Photon flux (15-150 keV)    in 0.244 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]    : 8.48949  (-0.608909  0.653785)
R^2/D10^2   : 5.29911  (-1.4216   1.93361)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.24 using 59 PHA bins.
# Reduced chi-squared =          1.337 for     57 degrees of freedom 
# Null hypothesis probability =   4.529001e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.755e-08   2.180e-09
25- 50  3.396e-08   2.855e-09
50-150  1.080e-08   2.262e-09
15-150  6.231e-08   5.295e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 40.2402       (-6.13564      7.68224)
Norm        : 38.8270       (-5.33631     6.18364)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.92 using 59 PHA bins.
# Reduced chi-squared =          1.086 for     57 degrees of freedom 
# Null hypothesis probability =   3.049717e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.180e-08   2.080e-09
25- 50  2.875e-08   2.391e-09
50-150  2.239e-08   4.717e-09
15-150  7.294e-08   6.112e-09
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.91249        (-1.4185      1.07613)
R1^2/D10^2  : 10.3138        (-4.06184      10.4333)
kT2 [keV]   : 21.4749        (-8.42293      25.0769)
R2^2/D10^2  : 4.96106E-02    (-0.0461754   0.470842)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.46 using 59 PHA bins.
# Reduced chi-squared =          1.063 for     55 degrees of freedom 
# Null hypothesis probability =   3.495460e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.011e-08   3.935e-09
25- 50  3.092e-08   6.256e-09
50-150  2.277e-08   1.040e-08
15-150  7.380e-08   1.869e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.396 sec. to    0.604 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.17602     ( -0.18226   0.19109 )
Norm@50keV  : 9.90878E-03    ( -0.00131935   0.00129889 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.21 using 59 PHA bins.
# Reduced chi-squared =          1.039 for     57 degrees of freedom 
# Null hypothesis probability =   3.948015e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.62004 ( -0.167671  0.167768 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.28606e-08 ( -1.08963e-08  1.10785e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.396 sec. to    0.604 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.642814     ( -1.36833   1.03128 )
Epeak [keV] : 33.2822      ( -11.0313 6.59167 )
Norm@50keV  : 8.65075E-02    ( -0.0865467   0.541406 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.97 using 59 PHA bins.
# Reduced chi-squared =         0.9280 for     56 degrees of freedom 
# Null hypothesis probability =   6.282389e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.55410 ( -0.17191  0.17259 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.12329e-08 ( -1.10782e-08  1.24601e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.396 sec. to    0.604 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.547419   ( -1.40418   -0.0423218 )
beta        : -2.86155    ( 2.89851   0.577267 )
Epeak [keV] : 30.7903      ( -7.95187 6.46138 )
Norm@50keV   : 0.595232    ( -0.583822   574.605 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.15 using 59 PHA bins.
# Reduced chi-squared =         0.9118 for     55 degrees of freedom 
# Null hypothesis probability =   6.601387e-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]    : 8.74403  (-0.872391  0.9795)
R^2/D10^2   : 1.29088  (-0.453757   0.688607)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.46 using 59 PHA bins.
# Reduced chi-squared =          1.026 for     57 degrees of freedom 
# Null hypothesis probability =   4.213855e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.892e-08   3.340e-09
25- 50  3.841e-08   4.865e-09
50-150  1.340e-08   3.936e-09
15-150  7.073e-08   9.540e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 46.9869       (-10.47      15.6357)
Norm        : 9.62331       (-1.61765     2.04475)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.98 using 59 PHA bins.
# Reduced chi-squared =         0.9295 for     57 degrees of freedom 
# Null hypothesis probability =   6.266333e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.318e-08   3.210e-09
25- 50  3.254e-08   3.775e-09
50-150  2.976e-08   8.440e-09
15-150  8.547e-08   1.118e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.30058        (-2.51025      1.44398)
R1^2/D10^2  : 2.28282        (-1.05974      4.9423)
kT2 [keV]   : 25.2714        (-20.6071      -25.3996)
R2^2/D10^2  : 8.26027E-03    (-0.00806414   0.189549)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.14 using 59 PHA bins.
# Reduced chi-squared =         0.9117 for     55 degrees of freedom 
# Null hypothesis probability =   6.603190e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.129e-08   6.685e-09
25- 50  3.543e-08   1.169e-08
50-150  3.039e-08   1.619e-08
15-150  8.711e-08   3.016e-08
Plot creation:
Tue Apr 29 19:39:26 EDT 2014