batgrbproduct analysis for trigger=810300

batgrbproduct Analysis for Trigger=810300

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Feb 17 09:13:22 EST 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger810300/GCN5_download_cron
======================================================================

  Trigger: 00810300      Segment: 000

  BAT Trigger Time: 540452264   [s; MET]
      Trigger Stop: 540453928   [s; MET]
               UTC: 2018-02-16T05:37:23.514500    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 254.544985834946   Dec: -42.7088023980622  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    9.08
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.08

  Flight Position:   [ source = BAT ]
    RA: 254.544985834946   Dec: -42.7088023980622  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 254.536759259037   Dec: -42.7117042188434  [deg; J2000]  
        { 16h 58m 08.8s , -42d 42' 42.1" }
         +/- 3.0189136159941 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.07836877815969 [arcmin] (formal 1-sigma fit error)
    SNR: 6.27505302087435
 
  Angular difference between Flight and Ground position is 0.402316 arcmin
 
  Partial Coding Fraction: 0.7890625    [ including projection effects ]

  Duration
     T90: 1664 +/- 
        Measured from: 0
                   to: 1664     [s; relative to TRIGTIME]
     T50: 1664 +/- 
        Measured from: 0
                   to: 1664     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 1664 second)
        Measured from: 0     
                   to: 1664     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 1664     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.352258   1.840449   0.762000  -0.019211
           0.223966   0.208614   0.184408   0.184233 [error]
 Peak      1.352258   1.840449   0.762000  -0.019211
           0.223966   0.208614   0.184408   0.184233 [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 4.87e-07 6.69e-07 6.78e-07 1.25e-06 2.23e-06 3.08e-06   erg/cm2
              Error 9.97e-08 9.82e-08 1.72e-07 6.28e-07 3.96e-07 8.18e-07   erg/cm2
Peak flux Power-law 2.11e-02 1.60e-02 8.10e-03 5.89e-03 4.79e-02 5.10e-02   ph/cm2/s
              Error 4.40e-03 2.33e-03 1.98e-03 2.75e-03 6.98e-03 7.52e-03   ph/cm2/s
 
Fluence   Cutoff-PL 4.48e-07 7.56e-07 6.14e-07 2.20e-07 1.98e-06 2.04e-06   erg/cm2
              Error 1.13e-07 1.39e-07 2.18e-07 5.01e-07 4.37e-07 8.85e-07   erg/cm2
Peak flux Cutoff-PL 1.91e-02 1.80e-02 7.58e-03 1.41e-03 4.58e-02 4.61e-02   ph/cm2/s
              Error 5.03e-03 3.25e-03 2.47e-03 3.39e-03 7.27e-03 7.81e-03   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    1.980    0.275    -      -           3.22e-04 5.95e-05   53.030 57
CPL   0.866    1.425      40.6    0.0      1.47e-03 0.00e+00   50.610 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.980    0.275    -      -           3.22e-04 5.95e-05   53.030 57
CPL   0.866    1.425      40.6    0.0      1.47e-03 0.00e+00   50.610 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 1664.000    0.000 1664.000
T90  1664.000    0.000 1664.000
T50  1664.000    0.000 1664.000
Peak 1664.000    0.000 1664.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  254.5368 -42.7117 0.0308   24.9   30.5       4.5810     6.3  TRIG_00810300       
------------------------------------------
 
Foreground time interval of the image:
210.000 963.016 (delta_t = 753.016 [sec])
Background time interval of the image:

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  210.000 sec. to  963.016 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.98029     ( -0.266264   0.284288 )
Norm@50keV  : 3.22138E-04    ( -6.0278e-05   5.87928e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.03 using 59 PHA bins.
# Reduced chi-squared =         0.9303 for     57 degrees of freedom 
# Null hypothesis probability =   6.249048e-01
 
Photon flux (15-150 keV)    in 753 sec: 4.78879E-02 ( -0.00698142  0.00698326 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.23487e-06 ( -3.89254e-07  4.03335e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  210.000 sec. to  963.016 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.865847     ( -1.66498   1.18575 )
Epeak [keV] : 40.5752      (   )
Norm@50keV  : 1.46673E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.61 using 59 PHA bins.
# Reduced chi-squared =         0.9037 for     56 degrees of freedom 
# Null hypothesis probability =   6.784181e-01
 
Photon flux (15-150 keV)    in 753 sec: 4.58131E-02 ( -0.0072434  0.0072965 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.9811e-06 ( -4.01469e-07  4.73306e-07 ) ergs/cm2
 
Band function
Time interval is from  210.000 sec. to  963.016 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.916600   ( 1.22113   1.22113 )
beta        : -9.92600    ( 7.30316   17.3032 )
Epeak [keV] : 40.6274      ( -11.0028 20.8742 )
Norm@50keV   : 1.36965E-03    ( -0.000197539   106767 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.61 using 59 PHA bins.
# Reduced chi-squared =         0.9202 for     55 degrees of freedom 
# Null hypothesis probability =   6.428336e-01
 
Photon flux (15-150 keV)    in 753 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]    : 9.87607  (-1.5031  1.80691)
R^2/D10^2   : 2.35557E-02  (-0.0112451   0.0210335)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.67 using 59 PHA bins.
# Reduced chi-squared =         0.9767 for     57 degrees of freedom 
# Null hypothesis probability =   5.250795e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.508e-07   8.784e-08
25- 50  8.569e-07   1.878e-07
50-150  4.313e-07   1.652e-07
15-150  1.639e-06   3.494e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 63.8320       (-22.3595      45.9353)
Norm        : 0.245069       (-0.0531666     0.0688516)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.91 using 59 PHA bins.
# Reduced chi-squared =         0.8932 for     57 degrees of freedom 
# Null hypothesis probability =   7.014707e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.681e-07   9.529e-08
25- 50  7.258e-07   1.292e-07
50-150  8.684e-07   3.925e-07
15-150  2.062e-06   5.448e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.10049        (-3.01697      87.2253)
R1^2/D10^2  : 0.158922        (-0.132481      10.7533)
kT2 [keV]   : 14.3015        (-4.39786      78.8093)
R2^2/D10^2  : 4.27676E-03    (-0.00426632   0.0175578)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.68 using 59 PHA bins.
# Reduced chi-squared =         0.9215 for     55 degrees of freedom 
# Null hypothesis probability =   6.401895e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.538e-07   2.372e-07
25- 50  7.432e-07   3.825e-07
50-150  7.274e-07   4.420e-07
15-150  1.924e-06   9.928e-07

Peak spectrum fit

Power-law model
Time interval is from  210.000 sec. to  963.016 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.98029     ( -0.266264   0.284288 )
Norm@50keV  : 3.22138E-04    ( -6.0278e-05   5.87928e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.03 using 59 PHA bins.
# Reduced chi-squared =         0.9303 for     57 degrees of freedom 
# Null hypothesis probability =   6.249048e-01
 
Photon flux (15-150 keV)    in 753 sec: 4.78879E-02 ( -0.00698142  0.00698326 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.23487e-06 ( -3.89254e-07  4.03335e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  210.000 sec. to  963.016 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.865847     ( -1.66498   1.18575 )
Epeak [keV] : 40.5752      (   )
Norm@50keV  : 1.46673E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.61 using 59 PHA bins.
# Reduced chi-squared =         0.9037 for     56 degrees of freedom 
# Null hypothesis probability =   6.784181e-01
 
Photon flux (15-150 keV)    in 753 sec: 4.58131E-02 ( -0.0072434  0.0072965 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.9811e-06 ( -4.01469e-07  4.73306e-07 ) ergs/cm2
 
Band function
Time interval is from  210.000 sec. to  963.016 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.916600   ( 1.22113   1.22113 )
beta        : -9.92600    ( 7.30316   17.3032 )
Epeak [keV] : 40.6274      ( -11.0028 20.8742 )
Norm@50keV   : 1.36965E-03    ( -0.000197539   106767 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.61 using 59 PHA bins.
# Reduced chi-squared =         0.9202 for     55 degrees of freedom 
# Null hypothesis probability =   6.428336e-01
 
Photon flux (15-150 keV)    in 753 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]    : 9.87607  (-1.5031  1.80691)
R^2/D10^2   : 2.35557E-02  (-0.0112451   0.0210335)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.67 using 59 PHA bins.
# Reduced chi-squared =         0.9767 for     57 degrees of freedom 
# Null hypothesis probability =   5.250795e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.508e-07   1.046e-07
25- 50  8.569e-07   2.010e-07
50-150  4.313e-07   1.498e-07
15-150  1.639e-06   3.328e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 63.8320       (-22.3595      45.9353)
Norm        : 0.245069       (-0.0531666     0.0688516)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.91 using 59 PHA bins.
# Reduced chi-squared =         0.8932 for     57 degrees of freedom 
# Null hypothesis probability =   7.014707e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.681e-07   9.213e-08
25- 50  7.258e-07   1.258e-07
50-150  8.684e-07   4.094e-07
15-150  2.062e-06   4.748e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.10049        (-3.01697      87.2253)
R1^2/D10^2  : 0.158922        (-0.132481      10.7533)
kT2 [keV]   : 14.3015        (-4.39786      78.8093)
R2^2/D10^2  : 4.27676E-03    (-0.00426632   0.0175578)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.68 using 59 PHA bins.
# Reduced chi-squared =         0.9215 for     55 degrees of freedom 
# Null hypothesis probability =   6.401895e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.538e-07   2.587e-07
25- 50  7.432e-07   3.776e-07
50-150  7.274e-07   4.507e-07
15-150  1.924e-06   9.733e-07
Plot creation:
Sat Feb 17 09:17:15 EST 2018