batgrbproduct Analysis for Trigger=574266

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Oct 12 11:02:05 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger574266/batgroup_hand_proc
======================================================================

  Trigger: 00574266      Segment: 000

  BAT Trigger Time: 403222629.376   [s; MET]
      Trigger Stop: 403222631.424   [s; MET]
               UTC: 2013-10-11T22:16:58.236680    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 42.2859901141018   Dec: 7.4399243641511  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6
     Image Trigger?:     NO
     Rate S/N Ratio:     28.6530975637888  [ if not an image trigger ]
     Image S/N Ratio:    6

  Flight Position:   [ source = BAT ]
    RA: 42.2859901141018   Dec: 7.4399243641511  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 42.3083343097395   Dec: 7.41148589538939  [deg; J2000]  
        { 02h 49m 14.0s , +07d 24' 41.3" }
         +/- 3.51243486675525 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.25798262912741 [arcmin] (formal 1-sigma fit error)
    SNR: 5.05449743583934
 
  Angular difference between Flight and Ground position is 2.163056 arcmin
 
  Partial Coding Fraction: 0.953125    [ including projection effects ]

  Duration
     T90: 2.04800003767014 +/- 
        Measured from: 0
                   to: 2.04800003767014     [s; relative to TRIGTIME]
     T50: 2.04800003767014 +/- 
        Measured from: 0
                   to: 2.04800003767014     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 2.04800003767014 second)
        Measured from: -2.98023223876953e-08     
                   to: 2.04800000786781     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 2.04800003767014     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    -0.007587   0.006213   0.022076   0.041984
           0.007187   0.007832   0.007704   0.007858 [error]
 Peak     -0.007587   0.006213   0.022076   0.041984
           0.007187   0.007832   0.007704   0.007858 [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 1.25e-10 1.38e-09 1.38e-08 9.74e-07 5.92e-08 9.92e-07   erg/cm2
              Error 2.49e-10 1.67e-09 7.12e-09 4.84e-07 2.26e-08 4.83e-07   erg/cm2
Peak flux Power-law 1.86e-03 1.07e-02 5.37e-02 1.17e+00 1.71e-01 1.23e+00   ph/cm2/s
              Error 3.75e-03 1.33e-02 2.86e-02 5.45e-01 7.25e-02 5.39e-01   ph/cm2/s
 
Fluence   Cutoff-PL 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 Cutoff-PL 2.63e-04 4.20e-03 4.70e-02 1.73e-01 1.04e+00 0.00e+00   ph/cm2/s
              Error 2.95e-03 1.15e-02 3.70e-02 8.41e-02 1.23e+00 0.00e+00   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   -1.323    0.677    -      -           6.23e-04 5.13e-04   55.760 57
CPL  -3.686    0.000     325.8    0.0      7.55e-04 6.54e-03   54.840 56
 
The chi2 of BB fit is Chi-Squared Chi-Squared Chi-Squared Chi-Squared which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -1.323    0.677    -      -           6.23e-04 5.13e-04   55.760 57
CPL  -3.686    0.000     325.8    0.0      7.55e-04 7.23e-03   54.840 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: 1.920000 sec.
T50 in the 50-300 keV band: 0.960000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    2.048    0.000    2.048
T90     2.048    0.000    2.048
T50     2.048    0.000    2.048
Peak    2.048   -0.000    2.048

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
   42.3083     7.4115   0.0380    13.3570    35.7185         0.0743513      5.054 TRIG_00574266                 
 
Foreground time interval of the image:
  0.000   2.048 (delta_t =   2.048 [sec])
Background time interval of the image:
-239.376 -207.826 (delta_t =  31.550 [sec])
-206.376 -13.376 (delta_t = 193.000 [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    0.000 sec. to    2.048 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.32340     ( -0.550159   0.803046 )
Norm@50keV  : 6.22823E-04    ( -0.000377911   0.000648492 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.76 using 59 PHA bins.
# Reduced chi-squared =         0.9782 for     57 degrees of freedom 
# Null hypothesis probability =   5.218433e-01
 
Photon flux (15-150 keV)    in 2.048 sec: 0.171263 ( -0.0742942  0.070645 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.91763e-08 ( -2.39854e-08  2.11575e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    2.048 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -3.68584     (     )
Epeak [keV] : 325.801      ( -330.098 -330.098 )
Norm@50keV  : 7.54598E-04    ( -0.000742063   0.0123332 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.84 using 59 PHA bins.
# Reduced chi-squared =         0.9794 for     56 degrees of freedom 
# Null hypothesis probability =   5.186544e-01
 
Photon flux (15-150 keV)    in 2.048 sec: 0.173334 ( -0.0987146  0.069479 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    2.048 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.94975   -4.94975 )
beta        : 0.926754    ( -0.525017   1.31106 )
Epeak [keV] : 206.850      ( -197.144 683.335 )
Norm@50keV   : 1.67024E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.83 using 59 PHA bins.
# Reduced chi-squared =         0.9968 for     55 degrees of freedom 
# Null hypothesis probability =   4.812405e-01
 
Photon flux (15-150 keV)    in 2.048 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]    : 198.019  (  )
R^2/D10^2   : 1.08340E-04  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.12 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     57 degrees of freedom 
# Null hypothesis probability =   4.705075e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 7.00000       (-7      -7)
Norm        : 0.0       (0     0)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.72 using 59 PHA bins.
# Reduced chi-squared =          1.434 for     57 degrees of freedom 
# Null hypothesis probability =   1.756905e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 199.363        (      )
R1^2/D10^2  : 1.09701E-04        (-3.64858e-05      0.000353722)
kT2 [keV]   : 10.0000        (-10      -10)
R2^2/D10^2  : 0.0    (0   0)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.72 using 59 PHA bins.
#Fit statistic : Chi-Squared =          57.10 using 59 PHA bins.
# Reduced chi-squared =          1.486 for     55 degrees of freedom 
# Reduced chi-squared =          1.038 for     55 degrees of freedom 
# Null hypothesis probability =   1.116433e-02
# Null hypothesis probability =   3.969750e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to    2.048 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.32340     ( -0.550159   0.803046 )
Norm@50keV  : 6.22823E-04    ( -0.000377911   0.000648492 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.76 using 59 PHA bins.
# Reduced chi-squared =         0.9782 for     57 degrees of freedom 
# Null hypothesis probability =   5.218433e-01
 
Photon flux (15-150 keV)    in 2.048 sec: 0.171263 ( -0.0742942  0.070645 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.91763e-08 ( -2.39854e-08  2.11575e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    2.048 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -3.68584     (     )
Epeak [keV] : 325.801      ( -330.098 -330.098 )
Norm@50keV  : 7.54598E-04    ( -0.000742063   0.0137207 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.84 using 59 PHA bins.
# Reduced chi-squared =         0.9794 for     56 degrees of freedom 
# Null hypothesis probability =   5.186544e-01
 
Photon flux (15-150 keV)    in 2.048 sec: 0.173334 ( -0.0987146  0.069479 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    2.048 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.94975   -4.94975 )
beta        : 0.926754    ( -0.525017   1.31106 )
Epeak [keV] : 206.850      ( -197.144 683.335 )
Norm@50keV   : 1.67024E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.83 using 59 PHA bins.
# Reduced chi-squared =         0.9968 for     55 degrees of freedom 
# Null hypothesis probability =   4.812405e-01
 
Photon flux (15-150 keV)    in 2.048 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]    : 198.019  (  )
R^2/D10^2   : 1.08340E-04  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.12 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     57 degrees of freedom 
# Null hypothesis probability =   4.705075e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 7.00000       (-7      -7)
Norm        : 0.0       (0     0)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.72 using 59 PHA bins.
# Reduced chi-squared =          1.434 for     57 degrees of freedom 
# Null hypothesis probability =   1.756905e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 199.363        (      )
R1^2/D10^2  : 1.09701E-04        (-3.64858e-05      0.000353722)
kT2 [keV]   : 10.0000        (-10      -10)
R2^2/D10^2  : 0.0    (0   0)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.72 using 59 PHA bins.
#Fit statistic : Chi-Squared =          57.10 using 59 PHA bins.
# Reduced chi-squared =          1.486 for     55 degrees of freedom 
# Reduced chi-squared =          1.038 for     55 degrees of freedom 
# Null hypothesis probability =   1.116433e-02
# Null hypothesis probability =   3.969750e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Plot creation:
Sat Oct 12 12:01:22 EDT 2013