batgrbproduct analysis for trigger=946344

batgrbproduct Analysis for Trigger=946344

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Dec 28 17:58:31 EST 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger946344/GCN5_download_cron
======================================================================

  Trigger: 00946344      Segment: 000

  BAT Trigger Time: 599103601.728   [s; MET]
      Trigger Stop: 599103602.752   [s; MET]
               UTC: 2019-12-27T01:39:37.570780    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 319.169545066939   Dec: -16.7044309198896  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    16.65
     Image Trigger?:     NO
     Rate S/N Ratio:     76.4983659956211  [ if not an image trigger ]
     Image S/N Ratio:    16.65

  Flight Position:   [ source = BAT ]
    RA: 319.169545066939   Dec: -16.7044309198896  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 319.168639169992   Dec: -16.7174994543576  [deg; J2000]  
        { 21h 16m 40.5s , -16d 43' 03.0" }
         +/- 1.04834639882309 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.432988177748961 [arcmin] (formal 1-sigma fit error)
    SNR: 28.4332037766717
 
  Angular difference between Flight and Ground position is 0.785838 arcmin
 
  Partial Coding Fraction: 0.1328125    [ including projection effects ]

  Duration
     T90: 55.9680000543594 +/- 16.2803145247545
        Measured from: -13.9839999675751
                   to: 41.9840000867844     [s; relative to TRIGTIME]
     T50: 9.79200005531311 +/- 0.63356769549929
        Measured from: 1.45600008964539
                   to: 11.2480001449585     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 5.26800000667572     
                   to: 6.26800000667572     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -30.5600000619888     
                   to: 105.919999957085     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     6.797941  11.261466  11.114004   4.662574
           0.265387   0.288672   0.274391   0.241789 [error]
 Peak      0.435902   0.808902   0.982591   0.401296
           0.037186   0.047014   0.052149   0.041255 [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 2.66e-06 5.54e-06 9.02e-06 3.31e-05 2.49e-05 5.03e-05   erg/cm2
              Error 1.63e-07 1.99e-07 2.81e-07 2.43e-06 7.19e-07 2.53e-06   erg/cm2
Peak flux Power-law 5.24e+00 6.70e+00 6.24e+00 1.02e+01 2.16e+01 2.84e+01   ph/cm2/s
              Error 6.14e-01 4.82e-01 4.03e-01 1.40e+00 1.32e+00 1.78e+00   ph/cm2/s
 
Fluence   Cutoff-PL 2.66e-06 5.54e-06 9.03e-06 3.28e-05 2.49e-05 5.00e-05   erg/cm2
              Error 1.81e-07 1.92e-07 2.79e-07 4.39e-06 7.12e-07 3.79e-06   erg/cm2
Peak flux Cutoff-PL 4.87e+00 6.79e+00 6.48e+00 8.02e+00 2.14e+01 2.62e+01   ph/cm2/s
              Error 7.73e-01 5.11e-01 5.20e-01 2.43e+00 1.34e+00 3.72e+00   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    1.296    0.052    -      -           1.85e-02 5.28e-04   52.180 57
CPL   1.292    0.110    9998.5    0.0      1.85e-02 1.94e-03   52.200 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.101    0.100    -      -           1.87e-01 1.10e-02   63.280 57
CPL   0.831    0.357     258.7    0.0      2.44e-01 8.93e-02   61.740 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: 35.968000 sec.
T50 in the 50-300 keV band: 8.896000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  136.480  -30.560  105.920
T90    55.968  -13.984   41.984
T50     9.792    1.456   11.248
Peak    1.000    5.268    6.268

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  319.1686 -16.7175 0.0067   49.8 -142.0      35.1900    28.4  TRIG_00946344       
------------------------------------------
 
Foreground time interval of the image:
-30.560 105.920 (delta_t = 136.480 [sec])
Background time interval of the image:
-239.728 -35.962 (delta_t = 203.766 [sec])
-34.728 -30.560 (delta_t =   4.168 [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  -30.560 sec. to  105.920 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29580     ( -0.0525306   0.0522863 )
Norm@50keV  : 1.84637E-02    ( -0.000528451   0.000527346 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.18 using 59 PHA bins.
# Reduced chi-squared =         0.9155 for     57 degrees of freedom 
# Null hypothesis probability =   6.559676e-01
 
Photon flux (15-150 keV)    in 136.5 sec: 2.20107 ( -0.0701989  0.0705553 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.49308e-05 ( -7.18267e-07  7.18819e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -30.560 sec. to  105.920 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29156     ( -0.145217   0.0747137 )
Epeak [keV] : 9998.51      ( -9998.57 -9998.57 )
Norm@50keV  : 1.85414E-02    ( -0.000522566   0.0033567 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.20 using 59 PHA bins.
# Reduced chi-squared =         0.9321 for     56 degrees of freedom 
# Null hypothesis probability =   6.194782e-01
 
Photon flux (15-150 keV)    in 136.5 sec: 2.20155 ( -0.07172  0.06895 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.49331e-05 ( -7.05159e-07  7.18399e-07 ) ergs/cm2
 
Band function
Time interval is from  -30.560 sec. to  105.920 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.64052   ( -4.64052   -4.64052 )
beta        : -1.30250    ( -0.053476   0.0533938 )
Epeak [keV] : 21.6676      ( -21.6676 4.46526 )
Norm@50keV   : 1963.70    ( -54.9086   4.85976e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.80 using 59 PHA bins.
# Reduced chi-squared =         0.9419 for     55 degrees of freedom 
# Null hypothesis probability =   5.975693e-01
 
Photon flux (15-150 keV)    in 136.5 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]    : 20.5282  (  )
R^2/D10^2   : 8.79915E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         341.97 using 59 PHA bins.
# Reduced chi-squared =         5.9994 for     57 degrees of freedom 
# Null hypothesis probability =   2.925528e-42
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.655e-07   5.760e-08
25- 50  4.892e-06   2.198e-07
50-150  1.533e-05   6.484e-07
15-150  2.119e-05   6.961e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 9.45828       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         148.62 using 59 PHA bins.
# Reduced chi-squared =         2.6074 for     57 degrees of freedom 
# Null hypothesis probability =   4.150297e-10
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.215e-06   1.037e-07
25- 50  6.184e-06   1.972e-07
50-150  1.356e-05   4.464e-07
15-150  2.296e-05   7.712e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.23800        (-0.847842      0.923631)
R1^2/D10^2  : 1.19498        (-0.352325      0.541887)
kT2 [keV]   : 35.0153        (-3.51068      4.78715)
R2^2/D10^2  : 1.27805E-02    (-0.00427627   0.00537356)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.13 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     55 degrees of freedom 
# Null hypothesis probability =   4.321854e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.347e-06   2.744e-07
25- 50  5.742e-06   3.815e-07
50-150  1.697e-05   1.317e-06
15-150  2.506e-05   1.829e-06

Peak spectrum fit

Power-law model
Time interval is from    5.268 sec. to    6.268 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10116     ( -0.100053   0.0995377 )
Norm@50keV  : 0.186530    ( -0.0110107   0.0109946 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.28 using 59 PHA bins.
# Reduced chi-squared =          1.110 for     57 degrees of freedom 
# Null hypothesis probability =   2.642829e-01
 
Photon flux (15-150 keV)    in 1 sec: 21.6385 ( -1.31608  1.31795 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.94951e-06 ( -1.23898e-07  1.24109e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    5.268 sec. to    6.268 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.831491     ( -0.400972   0.312418 )
Epeak [keV] : 258.703      ( -258.703 -258.703 )
Norm@50keV  : 0.244377    ( -0.0640445   0.114612 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.74 using 59 PHA bins.
# Reduced chi-squared =          1.102 for     56 degrees of freedom 
# Null hypothesis probability =   2.785277e-01
 
Photon flux (15-150 keV)    in 1 sec: 21.4459 ( -1.3401  1.3425 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.94042e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    5.268 sec. to    6.268 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.92464   ( -4.92464   -4.92464 )
beta        : -1.13657    ( -0.108795   0.106054 )
Epeak [keV] : 25.4314      ( -25.4314 4.55201 )
Norm@50keV   : 1.09494E+04    ( -640.414   3.42778e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.37 using 59 PHA bins.
# Reduced chi-squared =          1.116 for     55 degrees of freedom 
# Null hypothesis probability =   2.584599e-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]    : 22.3374  (  )
R^2/D10^2   : 0.733599  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         115.44 using 59 PHA bins.
# Reduced chi-squared =         2.0252 for     57 degrees of freedom 
# Null hypothesis probability =   7.587497e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.727e-08   8.275e-09
25- 50  3.589e-07   3.090e-08
50-150  1.338e-06   1.255e-07
15-150  1.764e-06   1.370e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 89.1915       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         119.46 using 59 PHA bins.
# Reduced chi-squared =         2.0959 for     57 degrees of freedom 
# Null hypothesis probability =   2.531390e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.221e-07   1.520e-08
25- 50  4.272e-07   3.135e-08
50-150  9.370e-07   1.946e-07
15-150  1.586e-06   2.565e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.90222        (-1.45789      1.85366)
R1^2/D10^2  : 16.8636        (-9.26052      23.5468)
kT2 [keV]   : 31.0725        (-3.88945      5.74463)
R2^2/D10^2  : 0.226905    (-0.0971509   0.127616)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.04 using 59 PHA bins.
# Reduced chi-squared =          1.055 for     55 degrees of freedom 
# Null hypothesis probability =   3.640603e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.607e-07   4.677e-08
25- 50  3.792e-07   7.455e-08
50-150  1.437e-06   2.410e-07
15-150  1.977e-06   3.085e-07
Plot creation:
Sat Dec 28 18:04:40 EST 2019