batgrbproduct analysis for trigger=892030

batgrbproduct Analysis for Trigger=892030

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Mar  8 09:11:10 EST 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger892030/GCN5_download_cron
======================================================================

  Trigger: 00892030      Segment: 000

  BAT Trigger Time: 573629600   [s; MET]
      Trigger Stop: 573629920   [s; MET]
               UTC: 2019-03-07T05:32:57.471040    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 299.841085591115   Dec: 35.2867435266075  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    9.25
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.25

  Flight Position:   [ source = BAT ]
    RA: 299.841085591115   Dec: 35.2867435266075  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 299.695242100587   Dec: 35.2378690908539  [deg; J2000]  
        { 19h 58m 46.9s , +35d 14' 16.3" }
         +/- 1.27322849813199 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.567106001818803 [arcmin] (formal 1-sigma fit error)
    SNR: 21.5403206890194
 
  Angular difference between Flight and Ground position is 7.723389 arcmin
 
  Partial Coding Fraction: 0.625    [ including projection effects ]

  Duration
     T90: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]
     T50: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 320 second)
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.529571   2.177590   1.020266   0.175497
           0.145890   0.148478   0.126977   0.107551 [error]
 Peak      1.529571   2.177590   1.020266   0.175497
           0.145890   0.148478   0.126977   0.107551 [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 5.28e-07 7.86e-07 8.75e-07 1.84e-06 2.75e-06 4.03e-06   erg/cm2
              Error 6.61e-08 6.82e-08 1.18e-07 4.90e-07 2.80e-07 6.16e-07   erg/cm2
Peak flux Power-law 7.08e-02 5.81e-02 3.23e-02 2.65e-02 1.73e-01 1.88e-01   ph/cm2/s
              Error 9.02e-03 5.05e-03 4.22e-03 6.57e-03 1.51e-02 1.65e-02   ph/cm2/s
 
Fluence   Cutoff-PL 4.56e-07 9.38e-07 8.05e-07 2.21e-07 2.38e-06 2.42e-06   erg/cm2
              Error 7.72e-08 1.04e-07 1.61e-07 2.56e-07 3.05e-07 3.92e-07   erg/cm2
Peak flux Cutoff-PL 6.00e-02 6.86e-02 3.10e-02 4.56e-03 1.64e-01 1.64e-01   ph/cm2/s
              Error 1.06e-02 7.48e-03 5.58e-03 -------- 1.57e-02 1.63e-02   ph/cm2/s
 
Fluence        Band 4.38e-07 9.61e-07 7.70e-07 6.71e-07 2.47e-06 2.84e-06   erg/cm2
              Error 7.97e-08 1.06e-07 1.45e-07 -------- 3.08e-07 --------   erg/cm2
Peak flux      Band 5.78e-02 7.07e-02 2.95e-02 1.08e-02 1.64e-01 1.69e-01   ph/cm2/s
              Error 1.12e-02 7.82e-03 5.21e-03 8.54e-03 1.56e-02 1.77e-02   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.846    0.150    -      -           1.23e-03 1.24e-04   68.600 57
CPL   0.243    0.952      45.7    7.7      1.02e-02 2.13e-02   55.850 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.846    0.150    -      -           1.23e-03 1.24e-04   68.600 57
CPL   0.243    0.952      45.7    7.7      1.02e-02 2.13e-02   55.850 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  320.000    0.000  320.000
T90   320.000    0.000  320.000
T50   320.000    0.000  320.000
Peak  320.000    0.000  320.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  299.6952 +35.2379 0.0090   24.1  -90.5       6.8852    21.5  TRIG_00892030       
------------------------------------------
 
Foreground time interval of the image:
  0.000 235.240 (delta_t = 235.240 [sec])
236.000 243.080 (delta_t =   7.080 [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
Multiple GTIs in the spectrum
tstart tstop
0.000000 235.240000
236.000000 243.080000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84624     ( -0.14752   0.152574 )
Norm@50keV  : 1.23265E-03    ( -0.00012491   0.00012335 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.60 using 59 PHA bins.
# Reduced chi-squared =          1.203 for     57 degrees of freedom 
# Null hypothesis probability =   1.397357e-01
 
Photon flux (15-150 keV)    in 242.3 sec: 0.172999 ( -0.0150972  0.0151007 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.7462e-06 ( -2.77354e-07  2.81674e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 235.240000
236.000000 243.080000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.242596     ( -1.06373   0.841161 )
Epeak [keV] : 45.7030      ( -5.78304 9.61078 )
Norm@50keV  : 1.02247E-02    ( -0.0102314   0.03238 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.85 using 59 PHA bins.
# Reduced chi-squared =         0.9973 for     56 degrees of freedom 
# Null hypothesis probability =   4.806384e-01
 
Photon flux (15-150 keV)    in 242.3 sec: 0.163566 ( -0.015728  0.015756 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.37901e-06 ( -2.92803e-07  3.17357e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 235.240000
236.000000 243.080000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.490303   ( -1.2324   2.62773 )
beta        : -2.77524    ( 2.78115   0.613559 )
Epeak [keV] : 41.1442      ( -8.7792 9.12612 )
Norm@50keV   : 2.99954E-02    ( -0.0270094   1.73551 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.11 using 59 PHA bins.
# Reduced chi-squared =         0.9838 for     55 degrees of freedom 
# Null hypothesis probability =   5.086353e-01
 
Photon flux (15-150 keV)    in 242.3 sec: 0.164270 ( 6.83573  -0.015622 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.46773e-06 ( -2.46603e-06  -3.01041e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.7891  (-0.919794  1.024)
R^2/D10^2   : 6.38424E-02  (-0.0186671   0.0257574)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.77 using 59 PHA bins.
# Reduced chi-squared =          1.101 for     57 degrees of freedom 
# Null hypothesis probability =   2.793650e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.747e-07   5.876e-08
25- 50  1.033e-06   9.910e-08
50-150  6.692e-07   1.398e-07
15-150  2.077e-06   2.313e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 81.8882       (-19.6764      31.2833)
Norm        : 0.816654       (-0.0988355     0.115397)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.33 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     57 degrees of freedom 
# Null hypothesis probability =   3.564623e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.142e-07   6.409e-08
25- 50  8.512e-07   7.596e-08
50-150  1.220e-06   4.865e-07
15-150  2.586e-06   4.460e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.88730        (-2.8028      1.62114)
R1^2/D10^2  : 0.108813        (-0.0430062      0.0482827)
kT2 [keV]   : 27.8396        (-21.9072      -28.006)
R2^2/D10^2  : 7.60830E-04    (-0.000725528   0.00307722)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.20 using 59 PHA bins.
# Reduced chi-squared =         0.9855 for     55 degrees of freedom 
# Null hypothesis probability =   5.051499e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.261e-07   1.253e-07
25- 50  9.789e-07   3.425e-07
50-150  1.092e-06   5.576e-07
15-150  2.497e-06   9.119e-07

Peak spectrum fit

Power-law model
Time interval is from  236.000 sec. to  243.080 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84624     ( -0.14752   0.152574 )
Norm@50keV  : 1.23265E-03    ( -0.00012491   0.00012335 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.60 using 59 PHA bins.
# Reduced chi-squared =          1.203 for     57 degrees of freedom 
# Null hypothesis probability =   1.397357e-01
 
Photon flux (15-150 keV)    in 242.3 sec: 0.172999 ( -0.0150972  0.0151007 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.7462e-06 ( -2.77354e-07  2.81674e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  236.000 sec. to  243.080 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.242596     ( -1.06373   0.841161 )
Epeak [keV] : 45.7030      ( -5.78304 9.61078 )
Norm@50keV  : 1.02247E-02    ( -0.0102314   0.03238 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.85 using 59 PHA bins.
# Reduced chi-squared =         0.9973 for     56 degrees of freedom 
# Null hypothesis probability =   4.806384e-01
 
Photon flux (15-150 keV)    in 242.3 sec: 0.163566 ( -0.015728  0.015756 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.37901e-06 ( -2.92803e-07  3.17357e-07 ) ergs/cm2
 
Band function
Time interval is from  236.000 sec. to  243.080 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.490303   ( -1.2324   2.62773 )
beta        : -2.77524    ( 2.78115   0.613559 )
Epeak [keV] : 41.1442      ( -8.7792 9.12612 )
Norm@50keV   : 2.99954E-02    ( -0.0270094   1.73551 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.11 using 59 PHA bins.
# Reduced chi-squared =         0.9838 for     55 degrees of freedom 
# Null hypothesis probability =   5.086353e-01
 
Photon flux (15-150 keV)    in 242.3 sec: 0.164270 ( 6.83573  -0.015622 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.46773e-06 ( -2.46603e-06  -3.01041e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.7891  (-0.919794  1.024)
R^2/D10^2   : 6.38424E-02  (-0.0186671   0.0257574)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.77 using 59 PHA bins.
# Reduced chi-squared =          1.101 for     57 degrees of freedom 
# Null hypothesis probability =   2.793650e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.747e-07   5.585e-08
25- 50  1.033e-06   1.055e-07
50-150  6.692e-07   1.485e-07
15-150  2.077e-06   2.268e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 81.8882       (-19.6764      31.2833)
Norm        : 0.816654       (-0.0988355     0.115397)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.33 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     57 degrees of freedom 
# Null hypothesis probability =   3.564623e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.142e-07   6.397e-08
25- 50  8.512e-07   8.323e-08
50-150  1.220e-06   4.732e-07
15-150  2.586e-06   4.707e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.88730        (-2.8028      1.62114)
R1^2/D10^2  : 0.108813        (-0.0430062      0.0482827)
kT2 [keV]   : 27.8396        (-21.9072      -28.006)
R2^2/D10^2  : 7.60830E-04    (-0.000725528   0.00307928)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.20 using 59 PHA bins.
# Reduced chi-squared =         0.9855 for     55 degrees of freedom 
# Null hypothesis probability =   5.051499e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.261e-07   1.215e-07
25- 50  9.789e-07   3.444e-07
50-150  1.092e-06   5.807e-07
15-150  2.497e-06   9.203e-07
Plot creation:
Fri Mar  8 09:17:26 EST 2019