batgrbproduct Analysis for Trigger=556570

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat May 25 03:13:32 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger556570/GCN5_download_cron
======================================================================

  Trigger: 00556570      Segment: 000

  BAT Trigger Time: 391108824   [s; MET]
      Trigger Stop: 391109144   [s; MET]
               UTC: 2013-05-24T17:20:13.406920    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 244.895743054138   Dec: -15.8268749147367  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    9.12
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.12

  Flight Position:   [ source = BAT ]
    RA: 244.895743054138   Dec: -15.8268749147367  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 244.953709606064   Dec: -15.7158133398289  [deg; J2000]  
        { 16h 19m 48.9s , -15d 42' 56.9" }
         +/- 4.04678043317376 [arcmin] (estimated 90% radius based on SNR)
         +/- 3.57728906058646 [arcmin] (formal 1-sigma fit error)
    SNR: 4.12875290442029
 
  Angular difference between Flight and Ground position is 7.457053 arcmin
 
  Partial Coding Fraction: 0.296875    [ including projection effects ]

  Duration
     T90: 306.175999939442 +/- 56.3263289604251
        Measured from: 44.6240001320839
                   to: 350.800000071526     [s; relative to TRIGTIME]
     T50: 174.487999916077 +/- 54.5358982456677
        Measured from: 141.660000145435
                   to: 316.148000061512     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 59.0159999728203     
                   to: 60.0159999728203     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -4.77600002288818     
                   to: 403.832000017166     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     8.731969   1.070868  -0.254546  -0.232251
           0.251656   0.227269   0.196618   0.174512 [error]
 Peak      0.058689   0.024880   0.002884   0.022196
           0.012969   0.011079   0.009882   0.008815 [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 2.96e-06 4.47e-07 3.10e-08 2.28e-09 3.44e-06 3.44e-06   erg/cm2
              Error 3.20e-07 1.05e-07 1.79e-08 2.34e-09 3.31e-07 3.31e-07   erg/cm2
Peak flux Power-law 6.12e-01 1.86e-01 3.10e-02 5.95e-03 8.33e-01 8.35e-01   ph/cm2/s
              Error 2.27e-01 1.53e-01 4.99e-02 2.33e-02 2.92e-01 2.94e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.01e-06 6.08e-07 4.15e-08 1.31e-09 3.68e-06 3.67e-06   erg/cm2
              Error 4.05e-07 2.68e-07 6.91e-08 1.07e-08 5.26e-07 5.26e-07   erg/cm2
Peak flux Cutoff-PL 6.19e-01 1.77e-01 2.77e-02 4.95e-03 8.23e-01 8.29e-01   ph/cm2/s
              Error 2.26e-01 1.54e-01 3.33e-02 1.28e-02 2.56e-01 2.94e-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    5.853    0.488    -      -           7.83e-05 3.66e-05   77.510 57
CPL   1.000    0.000      50.0    0.0      1.61e-03 0.00e+00  306.600 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.584    1.425    -      -           1.92e-03 2.35e-03   59.470 57
CPL   1.000    0.000      50.0    0.0      1.42e-02 0.00e+00   67.950 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  408.608   -4.776  403.832
T90   306.176   44.624  350.800
T50   174.488  141.660  316.148
Peak    1.000   59.016   60.016

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  244.9537 -15.7158 0.0467   30.7   84.8       2.7887     4.1  TRIG_00556570       
------------------------------------------
 
Foreground time interval of the image:
 -4.776 397.301 (delta_t = 402.077 [sec])
Background time interval of the image:
-239.000  -4.776 (delta_t = 234.224 [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   -4.776 sec. to  403.832 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.85303     ( -0.477403   0.498466 )
Norm@50keV  : 7.82932E-05    ( -3.00433e-05   4.31792e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.51 using 59 PHA bins.
# Reduced chi-squared =          1.360 for     57 degrees of freedom 
# Null hypothesis probability =   3.672546e-02
 
Photon flux (15-150 keV)    in 408.6 sec: 0.278112 ( -0.0283434  0.0284599 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.43895e-06 ( -3.30678e-07  3.3095e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -4.776 sec. to  403.832 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 1.60918E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         306.60 using 59 PHA bins.
# Reduced chi-squared =         5.4749 for     56 degrees of freedom 
# Null hypothesis probability =   3.015387e-36
 
Photon flux (15-150 keV)    in 408.6 sec: 0.274533 ( -0.029767  0.029351 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.67521e-06 ( -5.27212e-07  5.2508e-07 ) ergs/cm2
 
Band function
Time interval is from   -4.776 sec. to  403.832 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.72022   ( 1.71985   1.71985 )
beta        : -6.94403    ( 6.97135   1.54404 )
Epeak [keV] : 1.42656      ( -1.40988 10.2762 )
Norm@50keV   : 0.187329    ( -0.126457   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.01 using 59 PHA bins.
# Reduced chi-squared =          1.400 for     55 degrees of freedom 
# Null hypothesis probability =   2.668753e-02
 
Photon flux (15-150 keV)    in 408.6 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]    : 2.62072  (-0.234061  0.269715)
R^2/D10^2   : 93.9933  (-49.2709   103.63)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          79.88 using 59 PHA bins.
# Reduced chi-squared =          1.401 for     57 degrees of freedom 
# Null hypothesis probability =   2.442497e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.947e-06   7.651e-07
25- 50  2.612e-07   8.436e-08
50-150  1.296e-10   9.937e-11
15-150  3.209e-06   7.351e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 4.70045       (-0.612087      0.772064)
Norm        : 78.6401       (-35.8947     66.9424)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.44 using 59 PHA bins.
# Reduced chi-squared =          1.359 for     57 degrees of freedom 
# Null hypothesis probability =   3.712519e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.967e-06   6.327e-07
25- 50  3.249e-07   9.232e-08
50-150  1.222e-09   8.977e-10
15-150  3.293e-06   7.326e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.73804        (      )
R1^2/D10^2  : 1397.51        (-1341.85      -1431.57)
kT2 [keV]   : 3.42764        (-0.920465      8.7102)
R2^2/D10^2  : 9.37353    (-10.1485   89.4913)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          97.08 using 59 PHA bins.
#Fit statistic : Chi-Squared =          76.80 using 59 PHA bins.
# Reduced chi-squared =          1.765 for     55 degrees of freedom 
# Reduced chi-squared =          1.396 for     55 degrees of freedom 
# Null hypothesis probability =   4.028311e-04
# Null hypothesis probability =   2.769144e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.300e-06   1.365e-06
25- 50  5.063e-07   2.966e-07
50-150  2.092e-09   1.479e-09
15-150  2.809e-06   1.647e-06

Peak spectrum fit

Power-law model
Time interval is from   59.016 sec. to   60.016 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.58419     ( -1.13071   1.71897 )
Norm@50keV  : 1.92210E-03    ( -0.00192156   0.00277578 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.47 using 59 PHA bins.
# Reduced chi-squared =          1.043 for     57 degrees of freedom 
# Null hypothesis probability =   3.859215e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.832726 ( -0.292076  0.292085 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.18729e-08 ( -1.37477e-08  1.72667e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   59.016 sec. to   60.016 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 1.42139E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.95 using 59 PHA bins.
# Reduced chi-squared =          1.213 for     56 degrees of freedom 
# Null hypothesis probability =   1.314238e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.823034 ( -0.283684  0.227386 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.0999e-08 ( -1.58419e-08  1.74048e-08 ) ergs/cm2
 
Band function
Time interval is from   59.016 sec. to   60.016 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.91189   ( 9.91189   9.91189 )
beta        : -3.58442    ( -1.72061   1.13083 )
Epeak [keV] : 3.21254      ( -3.21254 -3.21254 )
Norm@50keV   : 0.261187    ( -0.261163   0.377273 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.47 using 59 PHA bins.
# Reduced chi-squared =          1.081 for     55 degrees of freedom 
# Null hypothesis probability =   3.163282e-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]    : 3.41768  (-1.06197  1.72732)
R^2/D10^2   : 49.0890  (-49.089   448.091)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.68 using 59 PHA bins.
# Reduced chi-squared =          1.065 for     57 degrees of freedom 
# Null hypothesis probability =   3.446418e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.974e-08   1.132e-08
25- 50  4.438e-09   3.032e-09
50-150  1.925e-11   2.072e-11
15-150  2.419e-08   1.512e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 8.95496       (-4.56836      18.8065)
Norm        : 34.6481       (-34.584     210.647)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.39 using 59 PHA bins.
# Reduced chi-squared =          1.060 for     57 degrees of freedom 
# Null hypothesis probability =   3.542522e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.897e-08   1.112e-08
25- 50  6.999e-09   5.035e-09
50-150  3.505e-10   4.000e-10
15-150  2.632e-08   1.614e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.97231        (-0.646232      1.53413)
R1^2/D10^2  : 99.0694        (-99.0702      2821.14)
kT2 [keV]   : 15.4698        (-15.4698      -15.4698)
R2^2/D10^2  : 2.96385E-02    (-0.0296385   0.372985)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.14 using 59 PHA bins.
# Reduced chi-squared =          1.057 for     55 degrees of freedom 
# Null hypothesis probability =   3.603825e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.896e-08   1.148e-08
25- 50  8.501e-09   5.210e-09
50-150  9.963e-09   7.320e-09
15-150  3.742e-08   2.028e-08
Plot creation:
Sat May 25 03:22:07 EDT 2013