batgrbproduct analysis for trigger=900730

batgrbproduct Analysis for Trigger=900730

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Apr 28 09:37:13 EDT 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger900730/GCN5_download_cron
======================================================================

  Trigger: 00900730      Segment: 000

  BAT Trigger Time: 578032477.88   [s; MET]
      Trigger Stop: 578032477.912   [s; MET]
               UTC: 2019-04-27T04:34:15.072360    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 280.212789126915   Dec: 40.3223823960134  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    11.1
     Image Trigger?:     NO
     Rate S/N Ratio:     54.5435605731786  [ if not an image trigger ]
     Image S/N Ratio:    11.1

  Flight Position:   [ source = BAT ]
    RA: 280.212789126915   Dec: 40.3223823960134  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 280.22892837142   Dec: 40.3206212595005  [deg; J2000]  
        { 18h 40m 54.9s , +40d 19' 14.2" }
         +/- 1.8070619519077 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.647713846260355 [arcmin] (formal 1-sigma fit error)
    SNR: 13.0621309859248
 
  Angular difference between Flight and Ground position is 0.745822 arcmin
 
  Partial Coding Fraction: 0.6875    [ including projection effects ]

  Duration
     T90: 0.191999912261963 +/- 0.202385803424389
        Measured from: -0.0159999132156372
                   to: 0.175999999046326     [s; relative to TRIGTIME]
     T50: 0.0639998912811279 +/- 0.0640000104904175
        Measured from: -0.0159999132156372
                   to: 0.0479999780654907     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.324000000953674     
                   to: 0.675999999046326     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0160000324249268     
                   to: 0.304000020027161     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.036595   0.071493   0.060973   0.024166
           0.006702   0.007908   0.007736   0.005797 [error]
 Peak      0.042228   0.073095   0.062155   0.017771
           0.010100   0.010950   0.009988   0.008049 [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 1.21e-08 2.71e-08 4.78e-08 1.97e-07 1.30e-07 2.84e-07   erg/cm2
              Error 2.67e-09 3.59e-09 7.09e-09 6.51e-08 1.80e-08 7.03e-08   erg/cm2
Peak flux Power-law 4.21e-01 5.10e-01 4.48e-01 6.77e-01 1.62e+00 2.06e+00   ph/cm2/s
              Error 1.32e-01 9.39e-02 8.19e-02 2.79e-01 2.55e-01 3.42e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.20e-08 2.73e-08 4.82e-08 1.73e-07 1.30e-07 2.58e-07   erg/cm2
              Error 3.05e-09 3.96e-09 7.76e-09 1.10e-07 1.89e-08 9.73e-08   erg/cm2
Peak flux Cutoff-PL 4.31e-01 5.15e-01 4.45e-01 6.53e-01 1.62e+00 2.04e+00   ph/cm2/s
              Error 1.32e-01 9.42e-02 8.22e-02 3.33e-01 2.55e-01 3.66e-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    1.183    0.209    -      -           4.00e-02 4.80e-03   43.440 57
CPL   1.097    0.563     527.5    0.0      4.39e-02 3.65e-02   43.410 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.187    0.294    -      -           1.38e-02 2.11e-03   49.340 57
CPL   1.196    0.337    9999.4    0.0      1.39e-02 7.01e-03   49.360 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: 0.064000 sec.
T50 in the 50-300 keV band: 0.064000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.320   -0.016    0.304
T90     0.192   -0.016    0.176
T50     0.064   -0.016    0.048
Peak    1.000   -0.324    0.676

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  280.2289 +40.3206 0.0147   24.6  148.5       0.1887    13.1  TRIG_00900730       
------------------------------------------
 
Foreground time interval of the image:
 -0.016   0.304 (delta_t =   0.320 [sec])
Background time interval of the image:
-60.880  -0.016 (delta_t =  60.864 [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   -0.016 sec. to    0.304 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18253     ( -0.209934   0.209008 )
Norm@50keV  : 3.99562E-02    ( -0.00480304   0.00479514 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.44 using 59 PHA bins.
# Reduced chi-squared =         0.7620 for     57 degrees of freedom 
# Null hypothesis probability =   9.072656e-01
 
Photon flux (15-150 keV)    in 0.32 sec: 4.67884 ( -0.566744  0.567287 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.30368e-07 ( -1.79117e-08  1.80925e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.016 sec. to    0.304 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.09693     ( -0.836859   0.288432 )
Epeak [keV] : 527.500      ( -580.336 -580.336 )
Norm@50keV  : 4.39402E-02    ( -0.00826291   0.064734 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.41 using 59 PHA bins.
# Reduced chi-squared =         0.7752 for     56 degrees of freedom 
# Null hypothesis probability =   8.903306e-01
 
Photon flux (15-150 keV)    in 0.32 sec: 4.66527 ( -0.57851  0.57382 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.29785e-07 ( -1.91811e-08  1.85309e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.016 sec. to    0.304 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.738562   ( 0.739907   4.05844 )
beta        : -1.26667    ( 1.26629   0.286487 )
Epeak [keV] : 114.292      ( -108.646 788.36 )
Norm@50keV   : 7.17403E-02    ( -0.0383541   2.36252 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.26 using 59 PHA bins.
# Reduced chi-squared =         0.7865 for     55 degrees of freedom 
# Null hypothesis probability =   8.740960e-01
 
Photon flux (15-150 keV)    in 0.32 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]    : 17.7750  (-2.92668  3.82039)
R^2/D10^2   : 0.315364  (-0.147347   0.255814)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.62 using 59 PHA bins.
# Reduced chi-squared =          1.046 for     57 degrees of freedom 
# Null hypothesis probability =   3.804705e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.409e-09   1.613e-09
25- 50  2.936e-08   5.960e-09
50-150  6.711e-08   1.637e-08
15-150  1.029e-07   1.859e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-37.0028      -200)
Norm        : 18.9648       (-2.3217     2.3217)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.65 using 59 PHA bins.
# Reduced chi-squared =         0.9061 for     57 degrees of freedom 
# Null hypothesis probability =   6.754621e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.511e-08   8.530e-09
25- 50  2.906e-08   1.593e-08
50-150  6.374e-08   3.507e-08
15-150  1.079e-07   6.019e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.50890        (-3.81186      4.26266)
R1^2/D10^2  : 1.64642        (-0.992044      4.26727)
kT2 [keV]   : 42.8117        (-17.0882      -42.8009)
R2^2/D10^2  : 1.56700E-02    (-0.0133456   0.0329302)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.05 using 59 PHA bins.
#Fit statistic : Chi-Squared =          43.20 using 59 PHA bins.
# Reduced chi-squared =         0.8008 for     55 degrees of freedom 
# Reduced chi-squared =         0.7854 for     55 degrees of freedom 
# Null hypothesis probability =   8.550648e-01
# Null hypothesis probability =   8.754857e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.068e-08   6.352e-09
25- 50  2.782e-08   1.499e-08
50-150  8.451e-08   4.995e-08
15-150  1.230e-07   6.638e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.324 sec. to    0.676 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18710     ( -0.298862   0.289061 )
Norm@50keV  : 1.37948E-02    ( -0.00210974   0.00210969 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.34 using 59 PHA bins.
# Reduced chi-squared =         0.8656 for     57 degrees of freedom 
# Null hypothesis probability =   7.546011e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.61634 ( -0.25402  0.255012 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.40468e-07 ( -2.43661e-08  2.46849e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.324 sec. to    0.676 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19566     ( -0.393822   0.279346 )
Epeak [keV] : 9999.35      ( -9999.36 -9999.36 )
Norm@50keV  : 1.38563E-02    ( -0.00211811   0.0118946 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.36 using 59 PHA bins.
# Reduced chi-squared =         0.8815 for     56 degrees of freedom 
# Null hypothesis probability =   7.224510e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.62040 ( -0.25831  0.25071 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4085e-07 ( -2.4737e-08  2.3525e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.324 sec. to    0.676 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.953341   ( 0.953341   5.93514 )
beta        : -1.18709    ( 1.18709   0.298855 )
Epeak [keV] : 52.6593      ( -52.6593 -52.6593 )
Norm@50keV   : 2.44430E-02    ( -0.0111249   2.74837 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.34 using 59 PHA bins.
# Reduced chi-squared =         0.8971 for     55 degrees of freedom 
# Null hypothesis probability =   6.897370e-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]    : 18.4478  (-4.281  6.70556)
R^2/D10^2   : 9.23571E-02  (-0.0915623   0.130321)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.74 using 59 PHA bins.
# Reduced chi-squared =          1.136 for     57 degrees of freedom 
# Null hypothesis probability =   2.247918e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.242e-09   2.114e-09
25- 50  2.940e-08   8.570e-09
50-150  7.306e-08   2.112e-08
15-150  1.087e-07   3.008e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-54.889      -200)
Norm        : 6.63650       (-1.03951     1.03951)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.67 using 59 PHA bins.
# Reduced chi-squared =         0.9590 for     57 degrees of freedom 
# Null hypothesis probability =   5.631625e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.653e-08   9.395e-09
25- 50  3.180e-08   1.789e-08
50-150  6.975e-08   3.986e-08
15-150  1.181e-07   6.675e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.73417        (-4.28815      4.21789)
R1^2/D10^2  : 0.593987        (-0.329007      2.57978)
kT2 [keV]   : 87.1470        (-57.3      -87.7275)
R2^2/D10^2  : 1.19023E-03    (-0.000719093   0.0152435)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.45 using 59 PHA bins.
#Fit statistic : Chi-Squared =          48.79 using 59 PHA bins.
# Reduced chi-squared =         0.8991 for     55 degrees of freedom 
# Reduced chi-squared =         0.8871 for     55 degrees of freedom 
# Null hypothesis probability =   6.857798e-01
# Null hypothesis probability =   7.093704e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.263e-08   7.535e-09
25- 50  2.993e-08   1.683e-08
50-150  9.760e-08   5.790e-08
15-150  1.402e-07   7.635e-08
Plot creation:
Sun Apr 28 09:40:08 EDT 2019