batgrbproduct analysis for trigger=931484

batgrbproduct Analysis for Trigger=931484

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Oct 26 20:12:14 EDT 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger931484/GCN5_download_cron
======================================================================

  Trigger: 00931484      Segment: 000

  BAT Trigger Time: 593720196.8   [s; MET]
      Trigger Stop: 593720196.864   [s; MET]
               UTC: 2019-10-25T18:16:12.990460    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 139.770966566081   Dec: 1.38387357342258  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.56
     Image Trigger?:     NO
     Rate S/N Ratio:     8.42614977317636  [ if not an image trigger ]
     Image S/N Ratio:    6.56

  Flight Position:   [ source = BAT ]
    RA: 139.770966566081   Dec: 1.38387357342258  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 139.780955232271   Dec: 1.38940343655953  [deg; J2000]  
        { 09h 19m 07.4s , +01d 23' 21.9" }
         +/- 3.14388826421206 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.40112652219428 [arcmin] (formal 1-sigma fit error)
    SNR: 5.92176393427376
 
  Angular difference between Flight and Ground position is 0.684879 arcmin
 
  Partial Coding Fraction: 0.9609375    [ including projection effects ]

  Duration
     T90: 0.0640000104904175 +/- 
        Measured from: 0
                   to: 0.0640000104904175     [s; relative to TRIGTIME]
     T50: 0.0640000104904175 +/- 
        Measured from: 0
                   to: 0.0640000104904175     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 0.0640000104904175 second)
        Measured from: 5.96046447753906e-08     
                   to: 0.0640000700950623     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 0.0640000104904175     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.002414   0.001895   0.005366   0.007714
           0.001597   0.001660   0.001774   0.001752 [error]
 Peak      0.002414   0.001895   0.005366   0.007714
           0.001597   0.001660   0.001774   0.001752 [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 6.02e-12 8.78e-11 1.18e-09 1.38e-07 5.82e-09 1.39e-07   erg/cm2
              Error 6.73e-11 3.00e-10 1.37e-09 1.05e-07 5.28e-09 1.06e-07   erg/cm2
Peak flux Power-law 2.83e-03 2.15e-02 1.44e-01 5.13e+00 5.15e-01 5.29e+00   ph/cm2/s
              Error 3.29e-02 7.83e-02 1.74e-01 3.91e+00 4.99e-01 4.04e+00   ph/cm2/s
 
Fluence   Cutoff-PL 7.90e-11 5.00e-10 8.00e-10 1.31e-10 1.48e-09 1.43e-09   erg/cm2
              Error 3.37e-10 8.56e-10 1.39e-09 1.34e-08 2.95e-09 --------   erg/cm2
Peak flux Cutoff-PL 3.81e-02 1.27e-01 1.16e-01 1.51e-02 2.96e-01 2.98e-01   ph/cm2/s
              Error 9.80e-02 2.31e-01 1.85e-01 -------- 2.88e-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   -1.756    1.314    -      -           1.36e-03 3.14e-03   40.030 57
CPL  -2.527    0.000    10000.0    0.0      7.47e-04 0.00e+00   39.070 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -1.756    1.314    -      -           1.36e-03 3.14e-03   40.030 57
CPL  -2.527    0.000    10000.0    0.0      7.47e-04 0.00e+00   39.070 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    0.064    0.000    0.064
T90     0.064    0.000    0.064
T50     0.064    0.000    0.064
Peak    0.064    0.000    0.064

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  139.7810  +1.3894 0.0326   17.0  156.9       0.0195     5.9  TRIG_00931484       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.064 (delta_t =   0.064 [sec])
Background time interval of the image:
-60.800 -52.660 (delta_t =   8.140 [sec])
-51.800  -4.800 (delta_t =  47.000 [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    0.000 sec. to    0.064 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.75627     ( -0.768004   1.86 )
Norm@50keV  : 1.36454E-03    ( -0.00137203   0.00490212 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.03 using 59 PHA bins.
# Reduced chi-squared =         0.7023 for     57 degrees of freedom 
# Null hypothesis probability =   9.570565e-01
 
Photon flux (15-150 keV)    in 0.064 sec: 0.515267 ( -0.515267  0.482217 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.81941e-09 ( -5.81941e-09  4.7367e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.52693     (     )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 7.46513E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.07 using 59 PHA bins.
# Reduced chi-squared =         0.6977 for     56 degrees of freedom 
# Null hypothesis probability =   9.583762e-01
 
Photon flux (15-150 keV)    in 0.064 sec: 0.296349 0.254472 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.5178e-16 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.064 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -10.00000   ( 10   10 )
beta        : 1.73592    ( -1.85629   0.765086 )
Epeak [keV] : 16.9196      ( -16.9196 -16.9196 )
Norm@50keV   : 0.192396    ( -0.189256   0.662627 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.03 using 59 PHA bins.
# Reduced chi-squared =         0.7278 for     55 degrees of freedom 
# Null hypothesis probability =   9.353564e-01
 
Photon flux (15-150 keV)    in 0.064 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]    : 200.000  (-198.657  -200)
R^2/D10^2   : 3.94370E-04  (-0.000220372   -0.000394241)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.57 using 59 PHA bins.
# Reduced chi-squared =         0.7293 for     57 degrees of freedom 
# Null hypothesis probability =   9.378535e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.917e-10   5.802e-10
25- 50  3.985e-10   2.978e-10
50-150  9.638e-12   1.437e-11
15-150  1.200e-09   8.848e-10
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-199.363      -199.363)
Norm        : 3.07980       (-2.20283     2.20289)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.93 using 59 PHA bins.
# Reduced chi-squared =         0.7883 for     57 degrees of freedom 
# Null hypothesis probability =   8.765431e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.908e-10   3.658e-10
25- 50  9.441e-10   7.322e-10
50-150  2.071e-09   1.533e-09
15-150  3.506e-09   2.575e-09
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.93003        (-3.63276      3.37404)
R1^2/D10^2  : 13.5037        (-10.7097      51.3842)
kT2 [keV]   : 200.000        (-200      -200)
R2^2/D10^2  : 3.77351E-04    (-0.000220775   0.000220941)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.71 using 59 PHA bins.
#Fit statistic : Chi-Squared =          38.70 using 59 PHA bins.
# Reduced chi-squared =         0.7039 for     55 degrees of freedom 
# Reduced chi-squared =         0.7036 for     55 degrees of freedom 
# Null hypothesis probability =   9.529835e-01
# Null hypothesis probability =   9.531790e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.475e-10   4.838e-10
25- 50  5.460e-10   2.725e-10
50-150  6.353e-09   1.826e-09
15-150  7.647e-09   2.356e-09

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to    0.064 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.75627     ( -0.768004   1.86 )
Norm@50keV  : 1.36454E-03    ( -0.00137203   0.00490212 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.03 using 59 PHA bins.
# Reduced chi-squared =         0.7023 for     57 degrees of freedom 
# Null hypothesis probability =   9.570565e-01
 
Photon flux (15-150 keV)    in 0.064 sec: 0.515267 ( -0.515267  0.482217 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.81941e-09 ( -5.81941e-09  4.7367e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.52693     (     )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 7.46513E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.07 using 59 PHA bins.
# Reduced chi-squared =         0.6977 for     56 degrees of freedom 
# Null hypothesis probability =   9.583762e-01
 
Photon flux (15-150 keV)    in 0.064 sec: 0.296349 0.254472 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.5178e-16 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.064 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -10.00000   ( 10   10 )
beta        : 1.73592    ( -1.85629   0.765086 )
Epeak [keV] : 16.9196      ( -16.9196 -16.9196 )
Norm@50keV   : 0.192396    ( -0.189256   0.662627 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.03 using 59 PHA bins.
# Reduced chi-squared =         0.7278 for     55 degrees of freedom 
# Null hypothesis probability =   9.353564e-01
 
Photon flux (15-150 keV)    in 0.064 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]    : 200.000  (-198.657  -200)
R^2/D10^2   : 3.94370E-04  (-0.000220372   -0.000394241)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.57 using 59 PHA bins.
# Reduced chi-squared =         0.7293 for     57 degrees of freedom 
# Null hypothesis probability =   9.378535e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.917e-10   5.142e-10
25- 50  3.985e-10   2.865e-10
50-150  9.638e-12   1.166e-11
15-150  1.200e-09   9.306e-10
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-199.363      -199.363)
Norm        : 3.07980       (-2.20283     2.20289)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.93 using 59 PHA bins.
# Reduced chi-squared =         0.7883 for     57 degrees of freedom 
# Null hypothesis probability =   8.765431e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.908e-10   3.744e-10
25- 50  9.441e-10   6.995e-10
50-150  2.071e-09   1.536e-09
15-150  3.506e-09   2.589e-09
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.93003        (-3.64186      3.3748)
R1^2/D10^2  : 13.5037        (-10.7097      48.1502)
kT2 [keV]   : 200.000        (-142.561      -200)
R2^2/D10^2  : 3.77351E-04    (-0.000220775   0.000220941)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.71 using 59 PHA bins.
#Fit statistic : Chi-Squared =          38.70 using 59 PHA bins.
# Reduced chi-squared =         0.7039 for     55 degrees of freedom 
# Reduced chi-squared =         0.7036 for     55 degrees of freedom 
# Null hypothesis probability =   9.529835e-01
# Null hypothesis probability =   9.531790e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.475e-10   4.925e-10
25- 50  5.460e-10   2.121e-10
50-150  6.353e-09   1.827e-09
15-150  7.647e-09   1.966e-09
Plot creation:
Sat Oct 26 20:14:59 EDT 2019