batgrbproduct analysis for trigger=911609

batgrbproduct Analysis for Trigger=911609

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Jun 28 17:49:19 EDT 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger911609/GCN5_download_cron
======================================================================

  Trigger: 00911609      Segment: 000

  BAT Trigger Time: 583327134.272   [s; MET]
      Trigger Stop: 583327136.32   [s; MET]
               UTC: 2019-06-27T11:18:31.127400    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 244.830211321885   Dec: -5.29214903648591  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.64
     Image Trigger?:     NO
     Rate S/N Ratio:     12.2882057274445  [ if not an image trigger ]
     Image S/N Ratio:    7.64

  Flight Position:   [ source = BAT ]
    RA: 244.830211321885   Dec: -5.29214903648591  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 244.842875811019   Dec: -5.30239162623938  [deg; J2000]  
        { 16h 19m 22.3s , -05d 18' 08.6" }
         +/- 2.71816356801274 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.22662010451541 [arcmin] (formal 1-sigma fit error)
    SNR: 7.28995225430999
 
  Angular difference between Flight and Ground position is 0.974761 arcmin
 
  Partial Coding Fraction: 0.734375    [ including projection effects ]

  Duration
     T90: 1.60000002384186 +/- 0.284871976186096
        Measured from: 0.104000210762024
                   to: 1.70400023460388     [s; relative to TRIGTIME]
     T50: 1.02400004863739 +/- 0.317590980914842
        Measured from: 0.360000133514404
                   to: 1.38400018215179     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.78000009059906     
                   to: 1.78000009059906     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0400000810623169     
                   to: 1.78400003910065     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.086944   0.083315   0.027948  -0.017240
           0.014434   0.013238   0.011008   0.008614 [error]
 Peak      0.053906   0.047613   0.017428  -0.014853
           0.011066   0.009924   0.008497   0.006386 [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 2.98e-08 3.22e-08 2.48e-08 3.13e-08 9.87e-08 1.18e-07   erg/cm2
              Error 6.95e-09 6.51e-09 9.55e-09 2.30e-08 2.25e-08 3.63e-08   erg/cm2
Peak flux Power-law 6.09e-01 3.49e-01 1.26e-01 6.02e-02 1.12e+00 1.14e+00   ph/cm2/s
              Error 1.76e-01 8.77e-02 6.01e-02 5.27e-02 2.58e-01 2.66e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.83e-08 3.63e-08 2.15e-08 5.45e-09 9.03e-08 9.14e-08   erg/cm2
              Error 7.68e-09 9.17e-09 1.20e-08 2.86e-08 2.37e-08 3.90e-08   erg/cm2
Peak flux Cutoff-PL 5.55e-01 4.09e-01 1.10e-01 9.24e-03 1.08e+00 1.08e+00   ph/cm2/s
              Error 1.99e-01 1.24e-01 7.33e-02 5.08e-02 2.60e-01 2.62e-01   ph/cm2/s
 
Fluence        Band 2.49e-08 2.49e-08 1.30e-08 9.77e-09 6.75e-08 7.28e-08   erg/cm2
              Error 5.94e-09 -------- -------- -------- -------- --------   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    2.376    0.385    -      -           5.83e-03 1.65e-03   42.040 57
CPL   1.309    1.520      24.0   17.9      2.68e-02 4.18e-01   40.880 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.466    0.489    -      -           5.80e-03 2.13e-03   42.230 57
CPL   0.961    2.069      25.8    0.0      4.93e-02 0.00e+00   40.780 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    1.744    0.040    1.784
T90     1.600    0.104    1.704
T50     1.024    0.360    1.384
Peak    1.000    0.780    1.780

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  244.8429  -5.3024 0.0264   28.2  -48.2       0.1738     7.3  TRIG_00911609       
------------------------------------------
 
Foreground time interval of the image:
  0.040   1.784 (delta_t =   1.744 [sec])
Background time interval of the image:
-239.272   0.040 (delta_t = 239.312 [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    0.040 sec. to    1.784 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.37623     ( -0.356135   0.413127 )
Norm@50keV  : 5.83004E-03    ( -0.00167637   0.00163131 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.04 using 59 PHA bins.
# Reduced chi-squared =         0.7375 for     57 degrees of freedom 
# Null hypothesis probability =   9.309358e-01
 
Photon flux (15-150 keV)    in 1.744 sec: 1.06388 ( -0.196198  0.196199 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.86595e-08 ( -2.19592e-08  2.30081e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.040 sec. to    1.784 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30864     ( -2.34414   0.696705 )
Epeak [keV] : 24.0330      ( -19.8156 16.0116 )
Norm@50keV  : 2.67920E-02    ( -0.0267942   0.808266 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.88 using 59 PHA bins.
# Reduced chi-squared =         0.7300 for     56 degrees of freedom 
# Null hypothesis probability =   9.354781e-01
 
Photon flux (15-150 keV)    in 1.744 sec: 1.03507 ( -0.199337  0.20083 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.02839e-08 ( -2.13964e-08  2.6029e-08 ) ergs/cm2
 
Band function
Time interval is from    0.040 sec. to    1.784 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.31593   ( 1.49696   1.49696 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 23.9855      ( -8.55032 16.0475 )
Norm@50keV   : 2.64688E-02    ( -0.0264688   0.810218 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.88 using 59 PHA bins.
# Reduced chi-squared =         0.7433 for     55 degrees of freedom 
# Null hypothesis probability =   9.218477e-01
 
Photon flux (15-150 keV)    in 1.744 sec: 0.808046 ( 6.19195  -0.155014 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.74904e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 8.17009  (-1.60854  1.87591)
R^2/D10^2   : 1.07557  (-0.608879   1.54103)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.77 using 59 PHA bins.
# Reduced chi-squared =         0.7855 for     57 degrees of freedom 
# Null hypothesis probability =   8.801363e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.299e-08   8.456e-09
25- 50  4.172e-08   1.432e-08
50-150  1.173e-08   6.548e-09
15-150  7.644e-08   2.367e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 37.4683       (-13.5046      25.1973)
Norm        : 7.23368       (-2.19442     3.51822)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.89 using 59 PHA bins.
# Reduced chi-squared =         0.7173 for     57 degrees of freedom 
# Null hypothesis probability =   9.469953e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.831e-08   7.586e-09
25- 50  3.617e-08   1.136e-08
50-150  2.601e-08   1.412e-08
15-150  9.049e-08   2.571e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.43734        (-2.6557      3.63854)
R1^2/D10^2  : 23.0035        (-21.5032      4.68482e+07)
kT2 [keV]   : 10.8240        (-2.95891      12.9319)
R2^2/D10^2  : 0.278041    (-0.272402   0.900015)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.37 using 59 PHA bins.
# Reduced chi-squared =         0.7341 for     55 degrees of freedom 
# Null hypothesis probability =   9.300987e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.848e-08   1.533e-08
25- 50  3.657e-08   1.974e-08
50-150  2.143e-08   1.357e-08
15-150  8.648e-08   4.398e-08

Peak spectrum fit

Power-law model
Time interval is from    0.780 sec. to    1.780 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.46593     ( -0.437986   0.540544 )
Norm@50keV  : 5.80180E-03    ( -0.00215407   0.00210325 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.23 using 59 PHA bins.
# Reduced chi-squared =         0.7408 for     57 degrees of freedom 
# Null hypothesis probability =   9.280166e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.11637 ( -0.257552  0.257557 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.75002e-08 ( -1.58921e-08  1.68113e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.780 sec. to    1.780 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.961058     ( -3.10061   1.03686 )
Epeak [keV] : 25.7592      (   )
Norm@50keV  : 4.93457E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.78 using 59 PHA bins.
# Reduced chi-squared =         0.7282 for     56 degrees of freedom 
# Null hypothesis probability =   9.369717e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.08238 ( -0.258754  0.26032 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.25117e-08 ( -1.4443e-08  1.75106e-08 ) ergs/cm2
 
Band function
Time interval is from    0.780 sec. to    1.780 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.959616   ( 1.37805   1.37805 )
beta        : -10.00000    ( 10   1.99251e-07 )
Epeak [keV] : 25.7547      ( -9.14215 15.1218 )
Norm@50keV   : 4.94673E-02    ( -0.0112521   4.65056 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.78 using 59 PHA bins.
# Reduced chi-squared =         0.7414 for     55 degrees of freedom 
# Null hypothesis probability =   9.235737e-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]    : 8.15302  (-1.93486  2.31264)
R^2/D10^2   : 1.14980  (-0.732248   2.3149)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.80 using 59 PHA bins.
# Reduced chi-squared =         0.7509 for     57 degrees of freedom 
# Null hypothesis probability =   9.186278e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.401e-08   7.485e-09
25- 50  2.534e-08   1.211e-08
50-150  7.078e-09   4.610e-09
15-150  4.643e-08   2.509e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 34.6230       (-14.1501      28.238)
Norm        : 8.09071       (-2.92425     5.26063)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.86 using 59 PHA bins.
# Reduced chi-squared =         0.7169 for     57 degrees of freedom 
# Null hypothesis probability =   9.473458e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.760e-08   6.008e-09
25- 50  2.166e-08   7.862e-09
50-150  1.420e-08   9.777e-09
15-150  5.346e-08   2.333e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.88097        (-2.48422      5.35646)
R1^2/D10^2  : 58.8267        (-58.7091      -58.8851)
kT2 [keV]   : 10.0854        (-2.78779      8.40612)
R2^2/D10^2  : 0.414971    (-0.415113   0.802285)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.03 using 59 PHA bins.
# Reduced chi-squared =         0.7278 for     55 degrees of freedom 
# Null hypothesis probability =   9.354214e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.714e-08   8.300e-09
25- 50  2.277e-08   1.319e-08
50-150  1.160e-08   7.735e-09
15-150  5.151e-08   2.719e-08
Plot creation:
Fri Jun 28 17:55:13 EDT 2019