batgrbproduct Analysis for Trigger=572721

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Oct  2 17:56:45 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger572721/GCN5_download_cron
======================================================================

  Trigger: 00572721      Segment: 000

  BAT Trigger Time: 402389672.384   [s; MET]
      Trigger Stop: 402389672.64   [s; MET]
               UTC: 2013-10-02T06:54:21.282820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 253.275042794748   Dec: 82.0571667841111  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.73
     Image Trigger?:     NO
     Rate S/N Ratio:     15.7162336455017  [ if not an image trigger ]
     Image S/N Ratio:    8.73

  Flight Position:   [ source = BAT ]
    RA: 253.275042794748   Dec: 82.0571667841111  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 253.103253828913   Dec: 82.0356388237163  [deg; J2000]  
        { 16h 52m 24.8s , +82d 02' 08.3" }
         +/- 3.94343600804638 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.31976946790202 [arcmin] (formal 1-sigma fit error)
    SNR: 4.2841894652854
 
  Angular difference between Flight and Ground position is 1.924209 arcmin
 
  Partial Coding Fraction: 0.71875    [ including projection effects ]

  Duration
     T90: 55.5919999480247 +/- 3.97822069659924
        Measured from: 0.128000140190125
                   to: 55.7200000882149     [s; relative to TRIGTIME]
     T50: 4.99999994039536 +/- 24.4502999561089
        Measured from: 41.9640001058578
                   to: 46.9640000462532     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 43.1719999909401     
                   to: 44.1719999909401     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.203999996185303     
                   to: 59.6679999828339     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.316824   0.395851   0.307440   0.035560
           0.039115   0.040810   0.036030   0.031932 [error]
 Peak      0.036173   0.061016   0.050572   0.013560
           0.005321   0.005790   0.005209   0.004098 [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 9.85e-08 1.67e-07 2.16e-07 5.64e-07 6.37e-07 1.05e-06   erg/cm2
              Error 1.67e-08 1.87e-08 3.50e-08 1.86e-07 8.36e-08 2.19e-07   erg/cm2
Peak flux Power-law 3.55e-01 4.14e-01 3.47e-01 4.92e-01 1.29e+00 1.61e+00   ph/cm2/s
              Error 6.82e-02 4.88e-02 4.21e-02 1.25e-01 1.36e-01 1.74e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.22e-08 1.81e-07 2.32e-07 2.95e-07 6.38e-07 8.00e-07   erg/cm2
              Error 2.13e-08 2.63e-08 4.28e-08 4.35e-07 1.02e-07 3.88e-07   erg/cm2
Peak flux Cutoff-PL 3.50e-01 4.17e-01 3.51e-01 4.43e-01 1.29e+00 1.56e+00   ph/cm2/s
              Error 7.61e-02 5.38e-02 4.69e-02 2.04e-01 1.38e-01 2.42e-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    1.629    0.191    -      -           1.14e-03 1.39e-04   54.830 57
CPL   0.740    0.845      65.5   60.8      3.43e-03 4.54e-03   50.820 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.253    0.177    -      -           1.09e-02 1.12e-03   50.750 57
CPL   1.168    0.467     512.5    0.0      1.20e-02 0.00e+00   50.690 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: 45.504000 sec.
T50 in the 50-300 keV band: 12.288000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   59.872   -0.204   59.668
T90    55.592    0.128   55.720
T50     5.000   41.964   46.964
Peak    1.000   43.172   44.172

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  253.1033 +82.0356 0.0449   24.1  142.0       0.1428     4.3  TRIG_00572721       
------------------------------------------
 
Foreground time interval of the image:
 -0.204   8.417 (delta_t =   8.621 [sec])
Background time interval of the image:
-153.983  -0.204 (delta_t = 153.779 [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   -0.204 sec. to   59.668 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.62904     ( -0.188113   0.193383 )
Norm@50keV  : 1.14110E-03    ( -0.000139821   0.000137976 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.83 using 59 PHA bins.
# Reduced chi-squared =         0.9619 for     57 degrees of freedom 
# Null hypothesis probability =   5.569095e-01
 
Photon flux (15-150 keV)    in 59.87 sec: 0.147987 ( -0.0165105  0.0165169 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.36777e-07 ( -8.29086e-08  8.43652e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.204 sec. to   59.668 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.739976     ( -0.92081   0.768255 )
Epeak [keV] : 65.5014      ( -15.2924 106.324 )
Norm@50keV  : 3.42962E-03    ( -0.0020726   0.00699765 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.82 using 59 PHA bins.
# Reduced chi-squared =         0.9076 for     56 degrees of freedom 
# Null hypothesis probability =   6.705937e-01
 
Photon flux (15-150 keV)    in 59.87 sec: 0.143147 ( -0.017003  0.017011 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.37633e-07 ( -1.00606e-07  1.03485e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.204 sec. to   59.668 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.739524   ( -0.565134   0.923411 )
beta        : -10.0000    ( 10   1.77636e-15 )
Epeak [keV] : 65.4755      ( -14.5718 106.144 )
Norm@50keV   : 3.43164E-03    ( -0.0020749   0.00699035 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.82 using 59 PHA bins.
# Reduced chi-squared =         0.9241 for     55 degrees of freedom 
# Null hypothesis probability =   6.348596e-01
 
Photon flux (15-150 keV)    in 59.87 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]    : 13.4369  (-1.70281  1.94608)
R^2/D10^2   : 2.47631E-02  (-0.00952454   0.0154851)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.93 using 59 PHA bins.
# Reduced chi-squared =          1.104 for     57 degrees of freedom 
# Null hypothesis probability =   2.745091e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.671e-08   1.176e-08
25- 50  2.023e-07   3.392e-08
50-150  2.353e-07   5.667e-08
15-150  4.943e-07   7.008e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 147.149       (-57.0006      -145.488)
Norm        : 0.616008       (-0.0742926     0.0930495)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.11 using 59 PHA bins.
# Reduced chi-squared =         0.9141 for     57 degrees of freedom 
# Null hypothesis probability =   6.588263e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.488e-08   2.477e-08
25- 50  1.754e-07   5.921e-08
50-150  3.434e-07   2.036e-07
15-150  6.136e-07   3.222e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.24008        (-1.61958      2.26813)
R1^2/D10^2  : 0.379035        (-0.275218      1.00731)
kT2 [keV]   : 18.3270        (-3.36666      5.57216)
R2^2/D10^2  : 6.77014E-03    (-0.00444718   0.0112151)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.56 using 59 PHA bins.
# Reduced chi-squared =         0.8830 for     55 degrees of freedom 
# Null hypothesis probability =   7.173690e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.343e-08   4.782e-08
25- 50  1.756e-07   8.310e-08
50-150  3.135e-07   1.712e-07
15-150  5.825e-07   2.855e-07

Peak spectrum fit

Power-law model
Time interval is from   43.172 sec. to   44.172 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25342     ( -0.178278   0.17603 )
Norm@50keV  : 1.09285E-02    ( -0.00112208   0.00112144 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.75 using 59 PHA bins.
# Reduced chi-squared =         0.8903 for     57 degrees of freedom 
# Null hypothesis probability =   7.072706e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.29327 ( -0.135996  0.136171 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.09274e-07 ( -1.24749e-08  1.25619e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   43.172 sec. to   44.172 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16830     ( -0.68655   0.247675 )
Epeak [keV] : 512.463      ( -512.51 -512.51 )
Norm@50keV  : 1.20374E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.69 using 59 PHA bins.
# Reduced chi-squared =         0.9052 for     56 degrees of freedom 
# Null hypothesis probability =   6.753259e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.28951 ( -0.1384  0.13811 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.08736e-07 ( -1.33451e-08  1.3003e-08 ) ergs/cm2
 
Band function
Time interval is from   43.172 sec. to   44.172 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.352159   ( 0.098539   4.75413 )
beta        : -1.39639    ( -0.36938   0.242644 )
Epeak [keV] : 48.9874      ( -48.548 154.976 )
Norm@50keV   : 0.114714    ( -0.130391   260.431 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.33 using 59 PHA bins.
# Reduced chi-squared =         0.8970 for     55 degrees of freedom 
# Null hypothesis probability =   6.900185e-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]    : 17.4397  (-2.5389  3.13204)
R^2/D10^2   : 9.14732E-02  (-0.0385214   0.0641208)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.98 using 59 PHA bins.
# Reduced chi-squared =          1.333 for     57 degrees of freedom 
# Null hypothesis probability =   4.721723e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.625e-09   1.175e-09
25- 50  2.539e-08   3.855e-09
50-150  5.558e-08   1.007e-08
15-150  8.660e-08   1.224e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 5.34640       (-0.55651     0.556481)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.44 using 59 PHA bins.
# Reduced chi-squared =          1.025 for     57 degrees of freedom 
# Null hypothesis probability =   4.223758e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.332e-08   3.640e-09
25- 50  2.562e-08   1.210e-08
50-150  5.618e-08   3.051e-08
15-150  9.511e-08   3.433e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.79972        (-1.99594      2.39639)
R1^2/D10^2  : 0.630786        (-0.332914      0.799945)
kT2 [keV]   : 41.4785        (-13.6063      59.0027)
R2^2/D10^2  : 4.51506E-03    (-0.00410861   0.0112502)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.36 using 59 PHA bins.
# Reduced chi-squared =         0.8611 for     55 degrees of freedom 
# Null hypothesis probability =   7.582048e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.037e-08   4.767e-09
25- 50  2.600e-08   1.106e-08
50-150  7.407e-08   3.635e-08
15-150  1.104e-07   5.076e-08
Plot creation:
Wed Oct  2 18:25:01 EDT 2013