batgrbproduct Analysis for Trigger=607742

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Aug  1 13:47:29 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger607742/batgroup_hand_proc
======================================================================

  Trigger: 00607742      Segment: 000

  BAT Trigger Time: 428442243.648   [s; MET]
      Trigger Stop: 428442245.696   [s; MET]
               UTC: 2014-07-30T19:43:51.315580    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 56.430725282402   Dec: -66.5388247653078  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.36
     Image Trigger?:     NO
     Rate S/N Ratio:     13.7840487520902  [ if not an image trigger ]
     Image S/N Ratio:    7.36

  Flight Position:   [ source = BAT ]
    RA: 56.430725282402   Dec: -66.5388247653078  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 56.3500096376485   Dec: -66.5802010362801  [deg; J2000]  
        { 03h 45m 24.0s , -66d 34' 48.7" }
         +/- 2.12350966709243 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.21981703170393 [arcmin] (formal 1-sigma fit error)
    SNR: 10.3728484711798
 
  Angular difference between Flight and Ground position is 3.142387 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 41.2799999713898 +/- 3.66536218104199
        Measured from: -13.0799999833107
                   to: 28.1999999880791     [s; relative to TRIGTIME]
     T50: 20.160000026226 +/- 13.1790282214932
        Measured from: -8.79199999570847
                   to: 11.3680000305176     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.17199999094009     
                   to: 2.17199999094009     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -13.527999997139     
                   to: 29.6079999804497     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.329024   0.230021   0.077976   0.007866
           0.031969   0.031497   0.028131   0.025876 [error]
 Peak      0.028996   0.025553   0.014221   0.001339
           0.005172   0.005116   0.004514   0.004019 [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 9.09e-08 9.17e-08 6.51e-08 7.34e-08 2.77e-07 3.21e-07   erg/cm2
              Error 1.51e-08 1.53e-08 2.23e-08 4.71e-08 5.14e-08 7.97e-08   erg/cm2
Peak flux Power-law 2.18e-01 1.74e-01 9.34e-02 7.32e-02 5.19e-01 5.59e-01   ph/cm2/s
              Error 6.56e-02 3.89e-02 3.38e-02 4.99e-02 1.15e-01 1.29e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.93e-08 9.76e-08 5.64e-08 1.99e-08 2.57e-07 2.63e-07   erg/cm2
              Error 1.58e-08 1.95e-08 2.23e-08 6.01e-08 5.88e-08 9.42e-08   erg/cm2
Peak flux Cutoff-PL 2.02e-01 1.96e-01 9.21e-02 2.18e-02 5.07e-01 5.12e-01   ph/cm2/s
              Error 7.20e-02 5.09e-02 4.16e-02 4.74e-02 8.67e-02 1.24e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 2.05e-01 1.92e-01 -------- -------- -------- 5.20e-01   ph/cm2/s
              Error 5.06e-02 -------- -------- -------- -------- 1.25e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.495    0.324    -      -           6.42e-04 1.61e-04   65.800 57
CPL   1.860    0.000       7.6    0.0      1.66e-03 0.00e+00   65.080 56
 
The chi2 of BB fit is 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    1.897    0.395    -      -           3.62e-03 1.01e-03   58.660 57
CPL   0.922    1.538      45.8    0.0      1.35e-02 0.00e+00   57.100 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   43.136  -13.528   29.608
T90    41.280  -13.080   28.200
T50    20.160   -8.792   11.368
Peak    1.000    1.172    2.172

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
   56.3500   -66.5802   0.0185     2.6361   -73.4455         0.6612198     10.373 TRIG_00607742                 
 
Foreground time interval of the image:
-13.528  29.608 (delta_t =  43.136 [sec])
Background time interval of the image:
-408.347 -392.077 (delta_t =  16.270 [sec])
-239.648 -13.528 (delta_t = 226.120 [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  -13.528 sec. to   29.608 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.49537     ( -0.302942   0.344942 )
Norm@50keV  : 6.41775E-04    ( -0.000161126   0.00016124 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.80 using 59 PHA bins.
# Reduced chi-squared =          1.154 for     57 degrees of freedom 
# Null hypothesis probability =   1.986040e-01
 
Photon flux (15-150 keV)    in 43.14 sec: 0.125717 ( -0.017307  0.0173198 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.76507e-07 ( -4.99354e-08  5.29367e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -13.528 sec. to   29.608 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.85955     (     )
Epeak [keV] : 7.57640      (   )
Norm@50keV  : 1.66083E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.08 using 59 PHA bins.
# Reduced chi-squared =          1.162 for     56 degrees of freedom 
# Null hypothesis probability =   1.900176e-01
 
Photon flux (15-150 keV)    in 43.14 sec: 0.123326 ( -0.017629  0.01785 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.57279e-07 ( -5.29591e-08  6.45862e-08 ) ergs/cm2
 
Band function
Time interval is from  -13.528 sec. to   29.608 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.92051   ( 1.9443   1.9443 )
beta        : -10.0000    ( 10   2.30926e-14 )
Epeak [keV] : 4.75736      ( -3.64264 24.4324 )
Norm@50keV   : 1.51438E-03    ( -0.00050936   0.0231209 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.09 using 59 PHA bins.
# Reduced chi-squared =          1.183 for     55 degrees of freedom 
# Null hypothesis probability =   1.657529e-01
 
Photon flux (15-150 keV)    in 43.14 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]    : 6.86937  (-1.10487  1.28174)
R^2/D10^2   : 0.251722  (-0.126957   0.273732)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.15 using 59 PHA bins.
# Reduced chi-squared =          1.283 for     57 degrees of freedom 
# Null hypothesis probability =   7.343478e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.069e-08   2.112e-08
25- 50  1.065e-07   2.711e-08
50-150  1.648e-08   8.432e-09
15-150  2.037e-07   4.228e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 30.7521       (-9.22123      14.7428)
Norm        : 0.984784       (-0.262394     0.401114)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.41 using 59 PHA bins.
# Reduced chi-squared =          1.148 for     57 degrees of freedom 
# Null hypothesis probability =   2.078734e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.755e-08   1.667e-08
25- 50  1.014e-07   2.155e-08
50-150  5.735e-08   2.958e-08
15-150  2.463e-07   5.270e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.97320        (-2.00551      1.99823)
R1^2/D10^2  : 1.75317        (-1.36659      76.8103)
kT2 [keV]   : 11.6851        (-3.79251      12.4663)
R2^2/D10^2  : 1.92802E-02    (-0.0184753   0.099)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.02 using 59 PHA bins.
# Reduced chi-squared =          1.182 for     55 degrees of freedom 
# Null hypothesis probability =   1.671945e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.053e-08   4.860e-08
25- 50  9.662e-08   5.045e-08
50-150  5.916e-08   3.753e-08
15-150  2.463e-07   1.274e-07

Peak spectrum fit

Power-law model
Time interval is from    1.172 sec. to    2.172 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.89671     ( -0.373927   0.415756 )
Norm@50keV  : 3.61954E-03    ( -0.0010299   0.000996519 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.66 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     57 degrees of freedom 
# Null hypothesis probability =   4.142854e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.518719 ( -0.115448  0.115458 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.3279e-08 ( -8.98372e-09  9.46248e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.172 sec. to    2.172 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.921517     ( -1.89849   1.17726 )
Epeak [keV] : 45.7660      (   )
Norm@50keV  : 1.34714E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.10 using 59 PHA bins.
# Reduced chi-squared =          1.020 for     56 degrees of freedom 
# Null hypothesis probability =   4.339178e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.507155 ( -0.114696  0.058734 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.05427e-08 ( -8.9776e-09  9.9818e-09 ) ergs/cm2
 
Band function
Time interval is from    1.172 sec. to    2.172 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.89505   ( -7.58425   -4.89505 )
beta        : -2.20548    ( -0.924532   0.508235 )
Epeak [keV] : 24.5478      ( -24.5478 7.0205 )
Norm@50keV   : 553.441    ( -120.577   3.84837e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.31 using 59 PHA bins.
# Reduced chi-squared =          1.024 for     55 degrees of freedom 
# Null hypothesis probability =   4.254916e-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]    : 9.67794  (-2.58458  3.92792)
R^2/D10^2   : 0.279362  (-0.199033   0.625485)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.24 using 59 PHA bins.
# Reduced chi-squared =          1.074 for     57 degrees of freedom 
# Null hypothesis probability =   3.265201e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.265e-09   2.552e-09
25- 50  1.249e-08   5.692e-09
50-150  5.925e-09   3.374e-09
15-150  2.368e-08   1.041e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 74.0811       (-35.5646      115.486)
Norm        : 2.53854       (-0.690242     1.03424)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.29 using 59 PHA bins.
# Reduced chi-squared =          1.005 for     57 degrees of freedom 
# Null hypothesis probability =   4.641551e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.549e-09   2.115e-09
25- 50  1.058e-08   5.415e-09
50-150  1.416e-08   1.165e-08
15-150  3.128e-08   1.866e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.77839        (-2.23019      2.87672)
R1^2/D10^2  : 1.34401        (-1.02929      7.09608)
kT2 [keV]   : 19.1160        (-7.3381      18.606)
R2^2/D10^2  : 1.53546E-02    (-0.0140338   0.0906124)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.57 using 59 PHA bins.
# Reduced chi-squared =          1.010 for     55 degrees of freedom 
# Null hypothesis probability =   4.529995e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.738e-09   3.985e-09
25- 50  1.049e-08   5.195e-09
50-150  1.470e-08   8.955e-09
15-150  3.192e-08   1.681e-08
Plot creation:
Fri Aug  1 14:08:02 EDT 2014