batgrbproduct analysis for trigger=815603

batgrbproduct Analysis for Trigger=815603

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Mar 19 22:20:34 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger815603/GCN5_download_cron
======================================================================

  Trigger: 00815603      Segment: 000

  BAT Trigger Time: 543114751.68   [s; MET]
      Trigger Stop: 543114752.192   [s; MET]
               UTC: 2018-03-19T01:12:11.033940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 275.094258726132   Dec: 7.16931550084611  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    9.31
     Image Trigger?:     NO
     Rate S/N Ratio:     11.9582607431014  [ if not an image trigger ]
     Image S/N Ratio:    9.31

  Flight Position:   [ source = BAT ]
    RA: 275.094258726132   Dec: 7.16931550084611  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 275.053964127939   Dec: 7.36464338317213  [deg; J2000]  
        { 18h 20m 13.0s , +07d 21' 52.7" }
         +/- 8.52349747998775 [arcmin] (estimated 90% radius based on SNR)
         +/- 7.50804148734131 [arcmin] (formal 1-sigma fit error)
    SNR: 1.42450614491692
 
  Angular difference between Flight and Ground position is 11.962540 arcmin
 
  Partial Coding Fraction: 0.6328125    [ including projection effects ]

  Duration
     T90: 904.371999979019 +/- 198.484904547677
        Measured from: -3.39999985694885
                   to: 900.97200012207     [s; relative to TRIGTIME]
     T50: 470.363999962807 +/- 55.068626475378
        Measured from: 260.528000116348
                   to: 730.892000079155     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.459999918937683     
                   to: 0.540000081062317     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -201.387999892235     
                   to: 949.060000061989     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    51.195519  64.816315  36.702460   5.202850
           0.289753   0.284962   0.235512   0.185602 [error]
 Peak      0.138129   0.144424   0.054546   0.009655
           0.012164   0.011533   0.009075   0.006785 [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 2.24e-05 2.89e-05 2.73e-05 4.55e-05 9.38e-05 1.24e-04   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux Power-law 1.60e+00 1.04e+00 4.43e-01 2.57e-01 3.22e+00 3.34e+00   ph/cm2/s
              Error 2.15e-01 1.02e-01 7.29e-02 7.83e-02 3.15e-01 3.24e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.79e-05 2.94e-05 2.94e-05 2.39e-05 8.95e-05 1.01e-04   erg/cm2
              Error 8.12e-07 5.14e-07 4.87e-07 2.00e-06 1.38e-06 2.52e-06   erg/cm2
Peak flux Cutoff-PL 1.47e+00 1.18e+00 4.12e-01 6.32e-02 3.11e+00 3.13e+00   ph/cm2/s
              Error 2.42e-01 1.49e-01 9.85e-02 9.46e-02 3.25e-01 3.35e-01   ph/cm2/s
 
Fluence        Band 1.66e-05 2.97e-05 2.89e-05 3.37e-05 8.87e-05 1.09e-04   erg/cm2
              Error 9.81e-07 5.71e-07 5.23e-07 2.47e-06 1.41e-06 2.61e-06   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    2.082    0.000    -      -           8.81e-03 0.00e+00  186.510 57
CPL   1.324    0.114      52.0    2.3      1.86e-02 2.05e-03   39.920 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.239    0.179    -      -           1.90e-02 2.40e-03   62.650 57
CPL   1.143    0.977      30.5    0.0      8.68e-02 0.00e+00   57.780 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: 573.120000 sec.
T50 in the 50-300 keV band: 377.856000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100 1150.450 -201.388  949.060
T90   904.372   -3.400  900.972
T50   470.364  260.528  730.892
Peak    1.000   -0.460    0.540

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  275.0540  +7.3646 0.1350   37.3 -162.1       0.9717     1.4  TRIG_00815603       
------------------------------------------
 
Foreground time interval of the image:
-201.388 -54.680 (delta_t = 146.708 [sec])
-53.680  10.621 (delta_t =  64.301 [sec])
Background time interval of the image:
-239.680 -201.388 (delta_t =  38.292 [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
Multiple GTIs in the spectrum
tstart tstop
-201.388000 -54.680000
-53.680000 495.420000
496.320000 833.900000
835.320000 949.060000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.08202     (     )
Norm@50keV  : 8.81494E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         186.51 using 59 PHA bins.
# Reduced chi-squared =         3.2721 for     57 degrees of freedom 
# Null hypothesis probability =   1.138506e-15
 
Photon flux (15-150 keV)    in 1147 sec: 1.37464 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.37825e-05 ( 0  0 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-201.388000 -54.680000
-53.680000 495.420000
496.320000 833.900000
835.320000 949.060000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32371     ( -0.115211   0.112725 )
Epeak [keV] : 52.0066      ( -2.3578 2.14774 )
Norm@50keV  : 1.86278E-02    ( -0.00191485   0.00217984 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.92 using 59 PHA bins.
# Reduced chi-squared =         0.7128 for     56 degrees of freedom 
# Null hypothesis probability =   9.485355e-01
 
Photon flux (15-150 keV)    in 1147 sec: 1.25167 ( -0.0293  0.02963 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.95445e-05 ( -1.38145e-06  1.38672e-06 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-201.388000 -54.680000
-53.680000 495.420000
496.320000 833.900000
835.320000 949.060000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.976554   ( -0.223685   0.27598 )
beta        : -2.48186    ( -0.130141   0.0923647 )
Epeak [keV] : 49.1330      ( -2.53039 2.39864 )
Norm@50keV   : 2.82284E-02    ( -0.00643711   0.0113305 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          27.51 using 59 PHA bins.
# Reduced chi-squared =         0.5001 for     55 degrees of freedom 
# Null hypothesis probability =   9.992926e-01
 
Photon flux (15-150 keV)    in 1147 sec: 1.22152 ( 5.77848  -0.03282 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.87132e-05 ( -8.87052e-05  -1.40989e-06 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.9732  (  )
R^2/D10^2   : 0.121299  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =        1087.79 using 59 PHA bins.
# Reduced chi-squared =        19.0840 for     57 degrees of freedom 
# Null hypothesis probability =  1.907371e-190
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.533e-06   1.870e-07
25- 50  2.591e-05   5.506e-07
50-150  3.951e-05   7.341e-07
15-150  7.195e-05   9.348e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 82.1545       (-2.78999      2.96034)
Norm        : 5.95494       (-0.150321     0.153691)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.96 using 59 PHA bins.
# Reduced chi-squared =         0.6836 for     57 degrees of freedom 
# Null hypothesis probability =   9.675195e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.775e-05   4.473e-07
25- 50  2.941e-05   4.875e-07
50-150  4.225e-05   7.111e-07
15-150  8.942e-05   1.158e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.30899        (-0.422574      0.427636)
R1^2/D10^2  : 0.816216        (-0.127533      0.161302)
kT2 [keV]   : 24.0561        (-1.24094      1.46174)
R2^2/D10^2  : 1.25044E-02    (-0.00291055   0.00343073)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.93 using 59 PHA bins.
# Reduced chi-squared =          1.308 for     55 degrees of freedom 
# Null hypothesis probability =   6.236967e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.347e-05   7.111e-07
25- 50  3.059e-05   6.767e-07
50-150  4.191e-05   9.348e-07
15-150  8.598e-05   1.738e-06

Peak spectrum fit

Power-law model
Time interval is from   -0.460 sec. to    0.540 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.23861     ( -0.174327   0.184638 )
Norm@50keV  : 1.90292E-02    ( -0.00241939   0.00237461 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.65 using 59 PHA bins.
# Reduced chi-squared =          1.099 for     57 degrees of freedom 
# Null hypothesis probability =   2.828972e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.21572 ( -0.315109  0.315362 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.79948e-07 ( -1.96732e-08  1.99252e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.460 sec. to    0.540 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.14265     ( -1.18086   0.772936 )
Epeak [keV] : 30.5164      (   )
Norm@50keV  : 8.68278E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.78 using 59 PHA bins.
# Reduced chi-squared =          1.032 for     56 degrees of freedom 
# Null hypothesis probability =   4.092111e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.11485 ( -0.32548  0.32528 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.64405e-07 ( -2.1739e-08  2.3041e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.460 sec. to    0.540 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.974323   ( -1.62973   -0.0700356 )
beta        : -2.70192    ( 2.71475   0.403744 )
Epeak [keV] : 28.3833      ( -6.37861 6.60946 )
Norm@50keV   : 2.79557    ( -2.6948   1383.82 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.16 using 59 PHA bins.
# Reduced chi-squared =          1.003 for     55 degrees of freedom 
# Null hypothesis probability =   4.686688e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.69612e-07 ( -1.69605e-07  -2.0669e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 8.60128  (-0.854103  0.951261)
R^2/D10^2   : 2.68347  (-0.933673   1.42474)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.65 using 59 PHA bins.
# Reduced chi-squared =          1.204 for     57 degrees of freedom 
# Null hypothesis probability =   1.386730e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.769e-08   6.085e-09
25- 50  7.452e-08   8.710e-09
50-150  2.470e-08   6.890e-09
15-150  1.369e-07   1.740e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 45.4389       (-9.70432      13.9358)
Norm        : 19.3471       (-3.15947     4.01666)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.81 using 59 PHA bins.
# Reduced chi-squared =          1.014 for     57 degrees of freedom 
# Null hypothesis probability =   4.452223e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.618e-08   6.095e-09
25- 50  6.401e-08   7.050e-09
50-150  5.662e-08   1.483e-08
15-150  1.668e-07   2.215e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.88209        (-1.67337      1.32)
R1^2/D10^2  : 5.53466        (-2.55124      3.32273)
kT2 [keV]   : 23.7627        (-10.4967      45.9351)
R2^2/D10^2  : 2.22824E-02    (-0.0214289   0.273552)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.36 using 59 PHA bins.
# Reduced chi-squared =          1.007 for     55 degrees of freedom 
# Null hypothesis probability =   4.610453e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.361e-08   1.137e-08
25- 50  6.719e-08   2.058e-08
50-150  6.072e-08   3.278e-08
15-150  1.715e-07   5.863e-08
Plot creation:
Mon Mar 19 22:26:39 EDT 2018