batgrbproduct analysis for trigger=808483

batgrbproduct Analysis for Trigger=808483

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Feb  5 05:56:25 EST 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger808483/GCN5_download_cron
======================================================================

  Trigger: 00808483      Segment: 000

  BAT Trigger Time: 539404597.364   [s; MET]
      Trigger Stop: 539404597.428   [s; MET]
               UTC: 2018-02-04T02:36:16.941540    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 330.117715108731   Dec: 30.8457546126038  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.65
     Image Trigger?:     NO
     Rate S/N Ratio:     63.4980314655502  [ if not an image trigger ]
     Image S/N Ratio:    7.65

  Flight Position:   [ source = BAT ]
    RA: 330.117715108731   Dec: 30.8457546126038  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 330.122846349373   Dec: 30.8520940610642  [deg; J2000]  
        { 22h 00m 29.5s , +30d 51' 07.5" }
         +/- 1.07405278705243 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.374006201107476 [arcmin] (formal 1-sigma fit error)
    SNR: 27.4660405289264
 
  Angular difference between Flight and Ground position is 0.463187 arcmin
 
  Partial Coding Fraction: 0.703125    [ including projection effects ]

  Duration
     T90: 1.16400003433228 +/- 0.117098175136296
        Measured from: -0.0279998779296875
                   to: 1.13600015640259     [s; relative to TRIGTIME]
     T50: 0.916000008583069 +/- 0.0233238344023471
        Measured from: 0.0720001459121704
                   to: 0.988000154495239     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0519999265670776     
                   to: 0.948000073432922     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0519999265670776     
                   to: 1.29200005531311     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.115808   0.228388   0.237398   0.079795
           0.010287   0.012497   0.012444   0.009889 [error]
 Peak      0.073713   0.151475   0.171612   0.061443
           0.008593   0.010624   0.010823   0.008995 [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 3.98e-08 9.41e-08 1.77e-07 8.05e-07 4.80e-07 1.12e-06   erg/cm2
              Error 4.40e-09 6.29e-09 1.14e-08 1.19e-07 2.96e-08 1.22e-07   erg/cm2
Peak flux Power-law 7.89e-01 1.09e+00 1.11e+00 2.05e+00 3.64e+00 5.04e+00   ph/cm2/s
              Error 1.14e-01 9.54e-02 8.28e-02 3.32e-01 2.59e-01 3.88e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.71e-08 9.68e-08 1.84e-07 5.22e-07 4.73e-07 8.40e-07   erg/cm2
              Error 5.35e-09 7.18e-09 1.38e-08 2.57e-07 3.11e-08 2.21e-07   erg/cm2
Peak flux Cutoff-PL 7.59e-01 1.10e+00 1.13e+00 1.75e+00 3.62e+00 4.74e+00   ph/cm2/s
              Error 1.39e-01 9.97e-02 1.04e-01 6.28e-01 2.64e-01 6.70e-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    1.089    0.096    -      -           3.40e-02 1.93e-03   71.320 57
CPL   0.765    0.381     213.4  -62.1      4.80e-02 2.00e-02   69.180 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.974    0.120    -      -           3.17e-02 2.22e-03   62.840 57
CPL   0.821    0.355     447.5    0.0      3.71e-02 1.55e-02   62.530 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: 1.088000 sec.
T50 in the 50-300 keV band: 0.896000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    1.344   -0.052    1.292
T90     1.164   -0.028    1.136
T50     0.916    0.072    0.988
Peak    1.000   -0.052    0.948

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  330.1228 +30.8521 0.0070   36.8   -6.9       0.6788    27.5  TRIG_00808483       
------------------------------------------
 
Foreground time interval of the image:
 -0.052   1.292 (delta_t =   1.344 [sec])
Background time interval of the image:
-130.863 -117.305 (delta_t =  13.559 [sec])
-60.364  -0.052 (delta_t =  60.312 [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   -0.052 sec. to    1.292 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.08886     ( -0.0966568   0.0957411 )
Norm@50keV  : 3.40163E-02    ( -0.0019322   0.00193123 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.32 using 59 PHA bins.
# Reduced chi-squared =          1.251 for     57 degrees of freedom 
# Null hypothesis probability =   9.607005e-02
 
Photon flux (15-150 keV)    in 1.344 sec: 3.94155 ( -0.229953  0.23014 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.79702e-07 ( -2.96141e-08  2.96853e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.052 sec. to    1.292 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.764704     ( -0.411751   0.350325 )
Epeak [keV] : 213.433      ( -89.2643 -213.441 )
Norm@50keV  : 4.80252E-02    ( -0.0146745   0.0253484 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.18 using 59 PHA bins.
# Reduced chi-squared =          1.235 for     56 degrees of freedom 
# Null hypothesis probability =   1.110278e-01
 
Photon flux (15-150 keV)    in 1.344 sec: 3.90102 ( -0.2347  0.23477 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.73165e-07 ( -3.12668e-08  3.10262e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.052 sec. to    1.292 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -5   -5 )
beta        : -1.18950    ( -0.114705   0.112577 )
Epeak [keV] : 29.9584      ( -10.8035 4.03717 )
Norm@50keV   : 879.929    ( -49.5273   10852.7 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.53 using 59 PHA bins.
# Reduced chi-squared =          1.191 for     55 degrees of freedom 
# Null hypothesis probability =   1.565157e-01
 
Photon flux (15-150 keV)    in 1.344 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]    : 20.1984  (  )
R^2/D10^2   : 0.183248  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         119.63 using 59 PHA bins.
# Reduced chi-squared =         2.0988 for     57 degrees of freedom 
# Null hypothesis probability =   2.417981e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.929e-08   2.312e-09
25- 50  9.673e-08   8.373e-09
50-150  2.929e-07   2.890e-08
15-150  4.090e-07   2.796e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 16.1726       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         131.87 using 59 PHA bins.
# Reduced chi-squared =         2.3135 for     57 degrees of freedom 
# Null hypothesis probability =   7.230329e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.412e-08   3.783e-09
25- 50  1.041e-07   7.620e-09
50-150  2.283e-07   5.400e-08
15-150  3.866e-07   5.497e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.2435        (-2.44505      2.88491)
R1^2/D10^2  : 0.993468        (-0.45665      1.09324)
kT2 [keV]   : 41.1453        (-11.2727      49.6967)
R2^2/D10^2  : 1.52569E-02    (-0.013039   0.0278294)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.07 using 59 PHA bins.
# Reduced chi-squared =          1.238 for     55 degrees of freedom 
# Null hypothesis probability =   1.109716e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.314e-08   7.325e-09
25- 50  1.041e-07   2.281e-08
50-150  3.399e-07   1.432e-07
15-150  4.772e-07   1.640e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.052 sec. to    0.948 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.974161     ( -0.121508   0.119353 )
Norm@50keV  : 3.16593E-02    ( -0.00222246   0.00221698 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.84 using 59 PHA bins.
# Reduced chi-squared =          1.102 for     57 degrees of freedom 
# Null hypothesis probability =   2.771301e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.64062 ( -0.259007  0.25924 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.45545e-07 ( -2.60821e-08  2.61401e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.052 sec. to    0.948 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.821495     ( -0.500396   0.209643 )
Epeak [keV] : 447.482      ( -447.487 -447.487 )
Norm@50keV  : 3.70539E-02    ( -0.00703675   0.0238754 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.53 using 59 PHA bins.
# Reduced chi-squared =          1.117 for     56 degrees of freedom 
# Null hypothesis probability =   2.557191e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.62350 ( -0.26377  0.26385 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.43811e-07 ( -2.705e-08  2.6844e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.052 sec. to    0.948 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99998   ( -4.99998   -4.99998 )
beta        : -1.01586    ( -0.132435   0.131905 )
Epeak [keV] : 27.4265      ( -27.4265 6.69575 )
Norm@50keV   : 1218.04    ( -83.9751   5.27106e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.78 using 59 PHA bins.
# Reduced chi-squared =          1.141 for     55 degrees of freedom 
# Null hypothesis probability =   2.200111e-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]    : 22.3731  (-2.09176  2.42018)
R^2/D10^2   : 0.125233  (-0.0344011   0.0454385)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          97.84 using 59 PHA bins.
# Reduced chi-squared =          1.717 for     57 degrees of freedom 
# Null hypothesis probability =   6.214398e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.151e-08   1.605e-09
25- 50  6.147e-08   7.085e-09
50-150  2.299e-07   2.715e-08
15-150  3.029e-07   2.775e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 14.6260       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         124.34 using 59 PHA bins.
# Reduced chi-squared =         2.1814 for     57 degrees of freedom 
# Null hypothesis probability =   6.445708e-07
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.642e-08   3.200e-09
25- 50  7.006e-08   1.103e-08
50-150  1.537e-07   4.334e-08
15-150  2.601e-07   6.420e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.92183        (-2.9991      3.77809)
R1^2/D10^2  : 0.904341        (-0.505976      1.63065)
kT2 [keV]   : 41.9716        (-11.9305      76.1851)
R2^2/D10^2  : 1.52831E-02    (-0.013445   0.0175056)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.31 using 59 PHA bins.
# Reduced chi-squared =          1.151 for     55 degrees of freedom 
# Null hypothesis probability =   2.064607e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.144e-08   7.479e-09
25- 50  6.766e-08   1.997e-08
50-150  2.577e-07   1.176e-07
15-150  3.468e-07   1.442e-07
Plot creation:
Mon Feb  5 06:03:22 EST 2018