batgrbproduct analysis for trigger=755848

batgrbproduct Analysis for Trigger=755848

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jun  5 08:07:24 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger755848/GCN5_download_cron
======================================================================

  Trigger: 00755848      Segment: 000

  BAT Trigger Time: 518274728   [s; MET]
      Trigger Stop: 518275456   [s; MET]
               UTC: 2017-06-04T13:11:48.835300    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 170.336054516908   Dec: -60.6291653996429  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    14.58
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    14.58

  Flight Position:   [ source = BAT ]
    RA: 170.336054516908   Dec: -60.6291653996429  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 170.322548045938   Dec: -60.620745851848  [deg; J2000]  
        { 11h 21m 17.4s , -60d 37' 14.7" }
         +/- 1.98538317156752 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.727758653370712 [arcmin] (formal 1-sigma fit error)
    SNR: 11.4189578750999
 
  Angular difference between Flight and Ground position is 0.642820 arcmin
 
  Partial Coding Fraction: 0.8828125    [ including projection effects ]

  Duration
     T90: 768.68799996376 +/- 65.0494591303918
        Measured from: -19.3279998898506
                   to: 749.36000007391     [s; relative to TRIGTIME]
     T50: 375.531999945641 +/- 71.2235649318829
        Measured from: 249.988000094891
                   to: 625.520000040531     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 623.976000010967     
                   to: 624.976000010967     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -61.3320000171661     
                   to: 827.092000007629     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     5.991963   1.657007   0.661946  -0.026732
           0.194214   0.196407   0.168857   0.150879 [error]
 Peak      0.027589   0.011650   0.005567   0.012174
           0.006444   0.006499   0.005498   0.004760 [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 1.89e-06 8.18e-07 2.11e-07 6.73e-08 2.96e-06 2.98e-06   erg/cm2
              Error 1.91e-07 1.21e-07 7.51e-08 4.27e-08 2.61e-07 2.70e-07   erg/cm2
Peak flux Power-law 2.19e-01 1.19e-01 4.01e-02 1.76e-02 3.87e-01 3.95e-01   ph/cm2/s
              Error 1.03e-01 6.12e-02 4.67e-02 4.60e-02 1.53e-01 1.62e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.89e-06 8.16e-07 2.10e-07 6.59e-08 2.95e-06 2.98e-06   erg/cm2
              Error 1.42e-07 1.20e-07 1.48e-07 6.00e-08 3.03e-07 3.24e-07   erg/cm2
Peak flux Cutoff-PL 2.26e-01 1.12e-01 3.39e-02 1.31e-02 3.81e-01 3.85e-01   ph/cm2/s
              Error 1.02e-01 6.15e-02 4.69e-02 4.62e-02 1.52e-01 1.58e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.952    0.318    -      -           1.56e-04 4.22e-05   73.600 57
CPL   1.892    0.000       1.2    0.0      6.55e-03 0.00e+00   75.910 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.563    1.188    -      -           1.90e-03 1.51e-03   58.660 57
CPL   1.911    0.000       3.9    0.0      5.54e-03 0.00e+00   59.380 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  888.424  -61.332  827.092
T90   768.688  -19.328  749.360
T50   375.532  249.988  625.520
Peak    1.000  623.976  624.976

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  170.3225 -60.6207 0.0169   23.4 -146.2       7.7763    11.4  TRIG_00755848       
------------------------------------------
 
Foreground time interval of the image:
-15.499 772.201 (delta_t = 787.700 [sec])
Background time interval of the image:

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  -61.332 sec. to  827.092 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.95193     ( -0.309927   0.326929 )
Norm@50keV  : 1.56370E-04    ( -3.91042e-05   4.528e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.60 using 59 PHA bins.
# Reduced chi-squared =          1.291 for     57 degrees of freedom 
# Null hypothesis probability =   6.863700e-02
 
Photon flux (15-150 keV)    in 888.4 sec: 9.24764E-02 ( -0.00788647  0.0079116 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.95558e-06 ( -2.58954e-07  2.62513e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -61.332 sec. to  827.092 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.89157     (     )
Epeak [keV] : 1.20657      (   )
Norm@50keV  : 6.55435E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.91 using 59 PHA bins.
# Reduced chi-squared =          1.355 for     56 degrees of freedom 
# Null hypothesis probability =   3.949624e-02
 
Photon flux (15-150 keV)    in 888.4 sec: 9.26927E-02 ( -0.0081993  0.0076733 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.95352e-06 ( -3.57119e-07  2.49418e-07 ) ergs/cm2
 
Band function
Time interval is from  -61.332 sec. to  827.092 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.26534   (     )
beta        : -8.04041    (     )
Epeak [keV] : 56.0622      (   )
Norm@50keV   : 8.07635E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         236.74 using 59 PHA bins.
# Reduced chi-squared =         4.3044 for     55 degrees of freedom 
# Null hypothesis probability =   2.100607e-24
 
Photon flux (15-150 keV)    in 888.4 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]    : 3.80847  (-0.319704  0.358792)
R^2/D10^2   : 2.99105  (-1.21753   2.0782)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.47 using 59 PHA bins.
# Reduced chi-squared =          1.412 for     57 degrees of freedom 
# Null hypothesis probability =   2.203208e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.896e-06   2.723e-07
25- 50  5.937e-07   1.183e-07
50-150  5.326e-09   3.114e-09
15-150  2.495e-06   3.394e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 9.00300       (-1.28879      1.63096)
Norm        : 3.87887       (-1.22422     1.85191)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.29 using 59 PHA bins.
# Reduced chi-squared =          1.338 for     57 degrees of freedom 
# Null hypothesis probability =   4.490407e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.907e-06   2.652e-07
25- 50  7.089e-07   1.229e-07
50-150  3.608e-08   1.839e-08
15-150  2.652e-06   3.278e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.58919        (-0.316361      0.349004)
R1^2/D10^2  : 4.08951        (-1.72339      3.08672)
kT2 [keV]   : 32.7929        (-13.0138      48.1014)
R2^2/D10^2  : 1.57807E-04    (-0.000139362   0.000592995)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.63 using 59 PHA bins.
# Reduced chi-squared =          1.066 for     55 degrees of freedom 
# Null hypothesis probability =   3.436633e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.928e-06   2.936e-07
25- 50  6.417e-07   1.541e-07
50-150  1.042e-06   6.158e-07
15-150  3.612e-06   8.742e-07

Peak spectrum fit

Power-law model
Time interval is from  623.976 sec. to  624.976 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.56298     ( -1.00304   1.37357 )
Norm@50keV  : 1.89546E-03    ( -0.00141024   0.00160698 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.66 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     57 degrees of freedom 
# Null hypothesis probability =   4.144895e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.387186 ( -0.153298  0.153269 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.92904e-08 ( -9.97892e-09  1.28863e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  623.976 sec. to  624.976 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.91051     (     )
Epeak [keV] : 3.86889      (   )
Norm@50keV  : 5.53660E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.38 using 59 PHA bins.
# Reduced chi-squared =          1.060 for     56 degrees of freedom 
# Null hypothesis probability =   3.536571e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.380550 ( -0.148053  0.155188 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.92645e-08 ( -1.92645e-08  1.28565e-08 ) ergs/cm2
 
Band function
Time interval is from  623.976 sec. to  624.976 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.08343   ( 1.37195   1.37195 )
beta        : -2.99688    ( 2.7556   1.17109 )
Epeak [keV] : 18.3502      ( -12.0287 94.7663 )
Norm@50keV   : 747.624    ( -749.572   2.41058e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.20 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     55 degrees of freedom 
# Null hypothesis probability =   3.582546e-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]    : 4.73579  (-1.48599  2.21253)
R^2/D10^2   : 4.01490  (-4.01496   21.1673)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.79 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     57 degrees of freedom 
# Null hypothesis probability =   4.097911e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.818e-09   4.900e-09
25- 50  4.455e-09   2.975e-09
50-150  1.383e-10   1.538e-10
15-150  1.241e-08   7.600e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 16.7489       (-9.64263      105.411)
Norm        : 5.50120       (-5.50076     16.5347)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.32 using 59 PHA bins.
# Reduced chi-squared =          1.041 for     57 degrees of freedom 
# Null hypothesis probability =   3.911031e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.221e-09   4.544e-09
25- 50  5.456e-09   3.835e-09
50-150  1.192e-09   1.175e-09
15-150  1.387e-08   8.995e-09
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.50482        (-1.41459      1.64226)
R1^2/D10^2  : 4.86654        (-3.93971      9.55654)
kT2 [keV]   : 199.363        (-199.363      -199.363)
R2^2/D10^2  : 7.49046E-05    (-4.7656e-05   0.00140619)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.08 using 59 PHA bins.
# Reduced chi-squared =         0.9469 for     55 degrees of freedom 
# Null hypothesis probability =   5.869445e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.746e-09   4.616e-09
25- 50  4.643e-09   2.653e-09
50-150  1.992e-08   6.750e-09
15-150  3.231e-08   9.940e-09
Plot creation:
Mon Jun  5 08:15:13 EDT 2017