batgrbproduct analysis for trigger=989458

batgrbproduct Analysis for Trigger=989458

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Mon Aug 17 18:42:37 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger989458/GCN5_download_cron
======================================================================

  Trigger: 00989458      Segment: 000

  BAT Trigger Time: 619243667.776   [s; MET]
      Trigger Stop: 619243669.824   [s; MET]
               UTC: 2020-08-16T04:07:22.309240    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 202.461308436717   Dec: -22.5897102537619  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.58
     Image Trigger?:     NO
     Rate S/N Ratio:     7.87400787401181  [ if not an image trigger ]
     Image S/N Ratio:    6.58

  Flight Position:   [ source = BAT ]
    RA: 202.461308436717   Dec: -22.5897102537619  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 202.482153658044   Dec: -22.5991311591342  [deg; J2000]  
        { 13h 29m 55.7s , -22d 35' 56.9" }
         +/- 3.59745369026301 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.00752168189185 [arcmin] (formal 1-sigma fit error)
    SNR: 4.88471810346752
 
  Angular difference between Flight and Ground position is 1.285646 arcmin
 
  Partial Coding Fraction: 0.8359375    [ including projection effects ]

  Duration
     T90: 2.04799997806549 +/- 
        Measured from: 0
                   to: 2.04799997806549     [s; relative to TRIGTIME]
     T50: 2.04799997806549 +/- 
        Measured from: 0
                   to: 2.04799997806549     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 2.04799997806549 second)
        Measured from: -5.96046447753906e-08     
                   to: 2.04799991846085     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 2.04799997806549     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.034321   0.042736   0.001103  -0.001277
           0.009690   0.009602   0.008381   0.007691 [error]
 Peak      0.034321   0.042736   0.001103  -0.001277
           0.009690   0.009602   0.008381   0.007691 [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 9.37e-09 1.19e-08 1.11e-08 1.81e-08 3.85e-08 5.10e-08   erg/cm2
              Error 4.04e-09 4.39e-09 6.52e-09 2.33e-08 1.63e-08 2.99e-08   erg/cm2
Peak flux Power-law 1.49e-01 1.05e-01 4.89e-02 3.19e-02 3.19e-01 3.36e-01   ph/cm2/s
              Error 6.54e-02 3.82e-02 2.80e-02 3.85e-02 1.14e-01 1.21e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.07e-09 1.93e-08 3.73e-09 9.44e-12 3.12e-08 3.10e-08   erg/cm2
              Error 4.65e-09 6.77e-09 5.52e-09 5.27e-10 1.07e-08 1.08e-08   erg/cm2
Peak flux Cutoff-PL 1.21e-01 1.73e-01 1.95e-02 2.96e-05 3.14e-01 3.14e-01   ph/cm2/s
              Error 7.34e-02 5.82e-02 2.65e-02 1.37e-03 1.03e-01 1.03e-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    2.090    0.593    -      -           2.04e-03 9.54e-04   76.490 57
CPL  -4.100    0.032      33.1    7.3      2.14e+01 2.60e+05   68.900 56
 
The chi2 of BB fit is 69.73 which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.090    0.593    -      -           2.04e-03 9.54e-04   76.490 57
CPL  -4.100    0.032      33.1    7.3      2.14e+01 2.60e+05   68.900 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    2.048    0.000    2.048
T90     2.048    0.000    2.048
T50     2.048    0.000    2.048
Peak    2.048   -0.000    2.048
  • Click here for the BAT GCN circular template
  • Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte

    Image

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

    #   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
      202.4822 -22.5991 0.0393   30.3 -163.3       0.0889     4.9  TRIG_00989458       
    ------------------------------------------
     
    Foreground time interval of the image:
      0.000   2.048 (delta_t =   2.048 [sec])
    Background time interval of the image:
    -239.776 -11.776 (delta_t = 228.000 [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
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    8 ms binning

    From T100_start-3 s to T100_start+3 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    2 ms binning

    From T100_start-1 s to T100_start+1 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    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    2.048 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.08962     ( -0.558431   0.627381 )
    Norm@50keV  : 2.03868E-03    ( -0.000988451   0.000919771 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          76.49 using 59 PHA bins.
    # Reduced chi-squared =          1.342 for     57 degrees of freedom 
    # Null hypothesis probability =   4.344987e-02
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.319016 ( -0.113731  0.113727 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.84924e-08 ( -1.55795e-08  1.70288e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.000 sec. to    2.048 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -4.10031     ( 4.57768   4.64169 )
    Epeak [keV] : 33.1317      ( -6.269 8.23265 )
    Norm@50keV  : 21.4059    ( -21.0537   519134 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.90 using 59 PHA bins.
    # Reduced chi-squared =          1.230 for     56 degrees of freedom 
    # Null hypothesis probability =   1.154310e-01
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.313569 ( -0.101642  0.104853 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.12476e-08 ( -1.02902e-08  1.11553e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.000 sec. to    2.048 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.48828   ( -4.54404   -4.48828 )
    beta        : -9.33928    ( 9.33928   19.2996 )
    Epeak [keV] : 33.1739      ( -6.40772 7.33899 )
    Norm@50keV   : 37.3047    ( -11.4222   616.148 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.93 using 59 PHA bins.
    # Reduced chi-squared =          1.253 for     55 degrees of freedom 
    # Null hypothesis probability =   9.812101e-02
     
    Photon flux (15-150 keV)    in 2.048 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]    : 8.51595  (-1.9333  2.50035)
    R^2/D10^2   : 0.326207  (-0.32618   0.573387)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.73 using 59 PHA bins.
    # Reduced chi-squared =          1.223 for     57 degrees of freedom 
    # Null hypothesis probability =   1.200489e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.141e-09   5.655e-09
    25- 50  1.778e-08   1.160e-08
    50-150  5.712e-09   4.433e-09
    15-150  3.263e-08   2.051e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 42.3878       (-21.1419      73.3193)
    Norm        : 2.09425       (-0.93456     1.57478)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          74.11 using 59 PHA bins.
    # Reduced chi-squared =          1.300 for     57 degrees of freedom 
    # Null hypothesis probability =   6.343943e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.003e-08   6.193e-09
    25- 50  1.353e-08   8.330e-09
    50-150  1.114e-08   9.297e-09
    15-150  3.470e-08   2.359e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.54020        (-8.52783      -8.52783)
    R1^2/D10^2  : 0.109447        (-0.109151      -0.109151)
    kT2 [keV]   : 8.49469        (-8.51293      -8.51293)
    R2^2/D10^2  : 0.217675    (-0.217231   -0.217231)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.73 using 59 PHA bins.
    # Reduced chi-squared =          1.268 for     55 degrees of freedom 
    # Null hypothesis probability =   8.727355e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.150e-09   1.070e-01
    25- 50  1.778e-08   9.456e-01
    50-150  5.698e-09   2.243e+01
    15-150  3.263e-08   2.473e+01
    

    Peak spectrum fit

    Power-law model
    Time interval is from    0.000 sec. to    2.048 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.08962     ( -0.558431   0.627381 )
    Norm@50keV  : 2.03868E-03    ( -0.000988451   0.000919771 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          76.49 using 59 PHA bins.
    # Reduced chi-squared =          1.342 for     57 degrees of freedom 
    # Null hypothesis probability =   4.344987e-02
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.319016 ( -0.113731  0.113727 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.84924e-08 ( -1.55795e-08  1.70288e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.000 sec. to    2.048 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -4.10031     ( 4.57768   4.64169 )
    Epeak [keV] : 33.1317      ( -6.269 8.23265 )
    Norm@50keV  : 21.4059    ( -21.0537   519134 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.90 using 59 PHA bins.
    # Reduced chi-squared =          1.230 for     56 degrees of freedom 
    # Null hypothesis probability =   1.154310e-01
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.313569 ( -0.101642  0.104853 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.12476e-08 ( -1.02902e-08  1.11553e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.000 sec. to    2.048 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.48828   ( -4.54404   -4.48828 )
    beta        : -9.33928    ( 9.33928   19.2996 )
    Epeak [keV] : 33.1739      ( -6.40772 7.33899 )
    Norm@50keV   : 37.3047    ( -11.4222   616.148 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.93 using 59 PHA bins.
    # Reduced chi-squared =          1.253 for     55 degrees of freedom 
    # Null hypothesis probability =   9.812101e-02
     
    Photon flux (15-150 keV)    in 2.048 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]    : 8.51595  (-1.9333  2.50035)
    R^2/D10^2   : 0.326207  (-0.32618   0.573387)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.73 using 59 PHA bins.
    # Reduced chi-squared =          1.223 for     57 degrees of freedom 
    # Null hypothesis probability =   1.200489e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.141e-09   5.557e-09
    25- 50  1.778e-08   1.141e-08
    50-150  5.712e-09   4.392e-09
    15-150  3.263e-08   2.070e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 42.3878       (-21.1419      73.3193)
    Norm        : 2.09425       (-0.93456     1.57478)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          74.11 using 59 PHA bins.
    # Reduced chi-squared =          1.300 for     57 degrees of freedom 
    # Null hypothesis probability =   6.343943e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.003e-08   6.332e-09
    25- 50  1.353e-08   8.348e-09
    50-150  1.114e-08   9.773e-09
    15-150  3.470e-08   2.245e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.54020        (-8.52783      -8.52783)
    R1^2/D10^2  : 0.109447        (-0.109151      -0.109151)
    kT2 [keV]   : 8.49469        (-8.51293      -8.51293)
    R2^2/D10^2  : 0.217675    (-0.217231   -0.217231)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.73 using 59 PHA bins.
    # Reduced chi-squared =          1.268 for     55 degrees of freedom 
    # Null hypothesis probability =   8.727355e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.150e-09   1.169e-01
    25- 50  1.778e-08   9.734e-01
    50-150  5.698e-09   2.273e+01
    15-150  3.263e-08   2.612e+01
    

    Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

    Power-law model
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.08962     ( -0.558431   0.627381 )
    Norm@50keV  : 2.03868E-03    ( -0.000988451   0.000919771 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          76.49 using 59 PHA bins.
    # Reduced chi-squared =          1.342 for     57 degrees of freedom 
    # Null hypothesis probability =   4.344987e-02
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.319016 ( -0.113731  0.113727 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.84924e-08 ( -1.55795e-08  1.70288e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -4.10031     ( 4.57768   4.64169 )
    Epeak [keV] : 33.1317      ( -6.269 8.23265 )
    Norm@50keV  : 21.4059    ( -21.0537   519134 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.90 using 59 PHA bins.
    # Reduced chi-squared =          1.230 for     56 degrees of freedom 
    # Null hypothesis probability =   1.154310e-01
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.313569 ( -0.101642  0.104853 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.12476e-08 ( -1.02902e-08  1.11553e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.48828   ( -4.54404   -4.48828 )
    beta        : -9.33928    ( 9.33928   19.2996 )
    Epeak [keV] : 33.1739      ( -6.40772 7.33899 )
    Norm@50keV   : 37.3047    ( -11.4222   616.148 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.93 using 59 PHA bins.
    # Reduced chi-squared =          1.253 for     55 degrees of freedom 
    # Null hypothesis probability =   9.812101e-02
     
    Photon flux (15-150 keV)    in 2.048 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    

    S(25-50 keV) vs. S(50-100 keV) plot

    S(25-50 keV)  = 1.19e-08
    S(50-100 keV) = 1.11e-08
    

    T90 vs. Hardness ratio plot

    T90                                   = 2.04799997806549 sec.
    Hardness ratio (energy fluence ratio) = 0.932773
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.24519
    Count Ratio (50-100 keV) / (15-25 keV) = 0.0321378
    

    Mask shadow pattern

    IMX = -5.601406343818897E-01, IMY = 1.678484570837852E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    Spacecraft aspect plot

    Bright source in the pre-burst/pre-slew/post-slew images

    Pre-burst image of 15-350 keV band

    Time interval of the image:
    -239.776000 -11.776000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    244.9720 -15.6455    0.6  26.8  103.8   7.0055  20.1    0.5	Sco X-1                       
    254.4345  35.2801    3.1  45.7   13.1  -1.5625  -3.8    3.9	Her X-1                       
    268.1949  31.1720    2.1  52.8   26.3   6.0145   5.5 ------	UNKNOWN                       
    230.6056 -41.5861    3.1  42.3  148.3   2.3627   3.8 ------	UNKNOWN                       
    189.7196 -45.3993    2.4  54.2 -174.9   4.2176   4.8 ------	UNKNOWN                       
    186.5421 -15.8205    2.6  39.4 -139.0   1.8068   4.4 ------	UNKNOWN                       
    175.0284 -14.7970    2.8  49.8 -133.0   5.4458   4.1 ------	UNKNOWN                       
    

    Pre-slew background subtracted image of 15-350 keV band

    Time interval of the image:
    0.000000 2.048000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    244.7992 -15.7239    8.0  26.7  104.2   0.0319   1.4   11.6	Sco X-1                       
    254.5729  35.2925    5.9  45.8   13.2   0.0652   2.0    6.4	Her X-1                       
    179.5393  -1.4597    2.7  43.5 -115.6   0.2578   4.3 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    79.424600 379.254000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    170.3517 -60.4726    9.4  44.0  174.7  -0.6936  -1.2    9.1	Cen X-3                       
    186.4711 -62.8062    7.4  41.7  163.5   0.8581   1.5    5.5	GX 301-2                      
    244.9824 -15.6596    1.6  40.6   60.5   7.1173   7.1    1.2	Sco X-1                       
    223.7389 -70.6455    2.5  49.6  143.5   7.1414   4.7 ------	UNKNOWN                       
    
    Plot creation:
    Mon Aug 17 18:45:46 EDT 2020