batgrbproduct Analysis for Trigger=293924

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jan 20 06:31:39 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger293924
======================================================================

  Trigger: 00293924      Segment: 000

  BAT Trigger Time: 213799216.128   [s; MET]
      Trigger Stop: 213799217.152   [s; MET]
               UTC: 2007-10-11T12:40:13.844040    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 8.40009894747049   Dec: 61.0725216897883  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.99
     Image Trigger?:     NO
     Rate S/N Ratio:     16.0934769394311  [ if not an image trigger ]
     Image S/N Ratio:    7.99

  Flight Position:   [ source = BAT ]
    RA: 8.40009894747049   Dec: 61.0725216897883  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 8.39221826562756   Dec: 61.1333940733554  [deg; J2000]  
        { 00h 33m 34.1s , +61d 08' 00.2" }
         +/- 1.28916649345966 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.54343984342533 [arcmin] (formal 1-sigma fit error)
    SNR: 21.1608973752607
 
  Angular difference between Flight and Ground position is 3.659483 arcmin
 
  Partial Coding Fraction: 0.3710938    [ including projection effects ]

  Duration
     T90: 65.8799999952316 +/- 15.4834462517568
        Measured from: -4.22799998521805
                   to: 61.6520000100136     [s; relative to TRIGTIME]
     T50: 42.2759999930859 +/- 2.87055395726043
        Measured from: 4.52000001072884
                   to: 46.7960000038147     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 45.9760000109673     
                   to: 46.9760000109673     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -9.47200000286102     
                   to: 77.6520000100136     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.950219   1.159803   1.077543   0.355721
           0.076134   0.079967   0.071102   0.062446 [error]
 Peak      0.059304   0.059166   0.080057   0.016568
           0.008994   0.009944   0.009300   0.007743 [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-07 5.67e-07 8.34e-07 2.63e-06 2.36e-06 4.32e-06   erg/cm2
              Error 3.81e-08 4.21e-08 7.19e-08 5.11e-07 1.74e-07 5.55e-07   erg/cm2
Peak flux Power-law 5.00e-01 5.71e-01 4.67e-01 6.40e-01 1.77e+00 2.18e+00   ph/cm2/s
              Error 1.32e-01 8.98e-02 7.66e-02 2.28e-01 2.48e-01 3.10e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.96e-07 5.70e-07 8.31e-07 2.60e-06 2.35e-06 4.13e-06   erg/cm2
              Error 2.95e-08 3.28e-08 7.11e-08 5.47e-07 1.73e-07 7.62e-07   erg/cm2
Peak flux Cutoff-PL 4.99e-01 5.71e-01 4.67e-01 6.36e-01 1.77e+00 2.17e+00   ph/cm2/s
              Error 1.06e-01 9.07e-02 7.99e-02 2.94e-01 2.48e-01 3.64e-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    1.444    0.125    -      -           2.83e-03 1.91e-04   90.340 57
CPL   1.442    0.174    9999.4    0.0      2.84e-03 5.44e-04   90.360 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.288    0.250    -      -           1.49e-02 2.02e-03   45.270 57
CPL   3.456    0.531     374.6    0.0      1.12e-03 0.00e+00   45.150 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: 54.720000 sec.
T50 in the 50-300 keV band: 40.960000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   87.124   -9.472   77.652
T90    65.880   -4.228   61.652
T50    42.276    4.520   46.796
Peak    1.000   45.976   46.976
  • Click here for the BAT GCN circular template

    Image

    Pre-slew 15.0-350.0 keV image (Event data)

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
        8.3922    61.1334   0.0091    36.5268   145.7169         3.9627253     21.161 TRIG_00293924                 
     
    Foreground time interval of the image:
     -9.472  77.652 (delta_t =  87.124 [sec])
    Background time interval of the image:
    -239.128  -9.472 (delta_t = 229.656 [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 1.024000
    

    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 1.024000
    

    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 1.024000
    

    SN=5 or 10 sec. binning (whichever binning is satisfied first)

    SN=5 or 10 sec. binning (T < 200 sec)

    Quad-rate summed light curves (from T0-300s to T0+1000s)

    Spectral Evolution

    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from   -9.472 sec. to   77.652 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.44391     ( -0.125419   0.12546 )
    Norm@50keV  : 2.82624E-03    ( -0.000190713   0.000190295 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          90.34 using 59 PHA bins.
    # Reduced chi-squared =          1.585 for     57 degrees of freedom 
    # Null hypothesis probability =   3.238053e-03
     
    Photon flux (15-150 keV)    in 87.12 sec: 0.347772 ( -0.0244656  0.0245796 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.35883e-06 ( -1.7401e-07  1.74825e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -9.472 sec. to   77.652 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.44161     ( -0.221781   0.12556 )
    Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
    Norm@50keV  : 2.83540E-03    ( -0.000191069   0.000896436 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          90.36 using 59 PHA bins.
    # Reduced chi-squared =          1.614 for     56 degrees of freedom 
    # Null hypothesis probability =   2.466684e-03
     
    Photon flux (15-150 keV)    in 87.12 sec: 0.348382 ( -0.025166  0.023924 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.35003e-06 ( -1.66007e-07  1.79729e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from   -9.472 sec. to   77.652 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.14862   ( 1.1496   6.14526 )
    beta        : -1.44388    ( -0.127393   0.125426 )
    Epeak [keV] : 36.7667      ( -36.1209 -36.1209 )
    Norm@50keV   : 5.68411E-03    ( -0.00226641   0.404298 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          90.34 using 59 PHA bins.
    # Reduced chi-squared =          1.643 for     55 degrees of freedom 
    # Null hypothesis probability =   1.881036e-03
     
    Photon flux (15-150 keV)    in 87.12 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]    : 17.1499  (  )
    R^2/D10^2   : 2.41118E-02  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         165.51 using 59 PHA bins.
    # Reduced chi-squared =         2.9037 for     57 degrees of freedom 
    # Null hypothesis probability =   1.628886e-12
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.255e-07   1.925e-08
    25- 50  5.593e-07   5.445e-08
    50-150  1.178e-06   1.494e-07
    15-150  1.862e-06   1.642e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (      )
    Norm        : 1.43121       (-0.096207     0.0961985)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          96.64 using 59 PHA bins.
    # Reduced chi-squared =          1.695 for     57 degrees of freedom 
    # Null hypothesis probability =   8.177174e-04
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.105e-07   2.509e-08
    25- 50  5.973e-07   4.883e-08
    50-150  1.310e-06   2.912e-07
    15-150  2.218e-06   4.831e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.41073        (-1.30347      1.51242)
    R1^2/D10^2  : 0.518973        (-0.276983      0.740118)
    kT2 [keV]   : 30.3453        (-5.44006      9.0328)
    R2^2/D10^2  : 3.04147E-03    (-0.00170072   0.00288497)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          90.68 using 59 PHA bins.
    # Reduced chi-squared =          1.649 for     55 degrees of freedom 
    # Null hypothesis probability =   1.747153e-03
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.078e-07   8.307e-08
    25- 50  5.447e-07   1.142e-07
    50-150  1.558e-06   4.003e-07
    15-150  2.411e-06   5.022e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   45.976 sec. to   46.976 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.28836     ( -0.249623   0.249578 )
    Norm@50keV  : 1.48747E-02    ( -0.00202468   0.00202034 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.27 using 59 PHA bins.
    # Reduced chi-squared =         0.7941 for     57 degrees of freedom 
    # Null hypothesis probability =   8.689326e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.77083 ( -0.247314  0.248359 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.47413e-07 ( -2.24251e-08  2.26064e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   45.976 sec. to   46.976 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 3.45607     ( -0.813899   0.248677 )
    Epeak [keV] : 374.588      ( -9999.36 -9999.36 )
    Norm@50keV  : 1.12215E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.15 using 59 PHA bins.
    # Reduced chi-squared =         0.8062 for     56 degrees of freedom 
    # Null hypothesis probability =   8.499681e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.77035 ( -0.24749  0.24764 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.47448e-07 ( -2.2499e-08  2.2502e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   45.976 sec. to   46.976 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.08146   ( 1.08167   6.0648 )
    beta        : -1.28828    ( -0.248976   0.249833 )
    Epeak [keV] : 51.1501      ( -51.0381 -51.0381 )
    Norm@50keV   : 2.47827E-02    ( -0.0106171   2.27149 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.27 using 59 PHA bins.
    # Reduced chi-squared =         0.8230 for     55 degrees of freedom 
    # Null hypothesis probability =   8.224382e-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]    : 20.9931  (-3.63343  4.53571)
    R^2/D10^2   : 6.75100E-02  (-0.0315349   0.057933)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          60.28 using 59 PHA bins.
    # Reduced chi-squared =          1.058 for     57 degrees of freedom 
    # Null hypothesis probability =   3.579606e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.622e-09   1.602e-09
    25- 50  2.889e-08   7.610e-09
    50-150  9.490e-08   2.469e-08
    15-150  1.294e-07   2.891e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (      )
    Norm        : 7.31407       (-1.00659     1.00649)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.53 using 59 PHA bins.
    # Reduced chi-squared =         0.8690 for     57 degrees of freedom 
    # Null hypothesis probability =   7.483433e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.822e-08   1.046e-08
    25- 50  3.505e-08   1.936e-08
    50-150  7.687e-08   4.277e-08
    15-150  1.301e-07   7.250e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 4.23748        (-1.47601      2.1215)
    R1^2/D10^2  : 12.6346        (-10.4766      74.7706)
    kT2 [keV]   : 26.7497        (-5.2693      8.2751)
    R2^2/D10^2  : 2.84378E-02    (-0.0162269   0.0296929)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          40.53 using 59 PHA bins.
    # Reduced chi-squared =         0.7368 for     55 degrees of freedom 
    # Null hypothesis probability =   9.276882e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.850e-08   1.026e-08
    25- 50  2.638e-08   8.945e-09
    50-150  1.048e-07   3.942e-08
    15-150  1.496e-07   4.943e-08
    

    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: 1.44391     ( -0.125419   0.12546 )
    Norm@50keV  : 2.82624E-03    ( -0.000190713   0.000190295 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          90.34 using 59 PHA bins.
    # Reduced chi-squared =          1.585 for     57 degrees of freedom 
    # Null hypothesis probability =   3.238053e-03
     
    Photon flux (15-150 keV)    in 87.12 sec: 0.347772 ( -0.0244656  0.0245796 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.35883e-06 ( -1.7401e-07  1.74825e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.44161     ( -0.221781   0.12556 )
    Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
    Norm@50keV  : 2.83540E-03    ( -0.000191069   0.000896436 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          90.36 using 59 PHA bins.
    # Reduced chi-squared =          1.614 for     56 degrees of freedom 
    # Null hypothesis probability =   2.466684e-03
     
    Photon flux (15-150 keV)    in 87.12 sec: 0.348382 ( -0.025166  0.023924 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.35003e-06 ( -1.66007e-07  1.79729e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.14862   ( 1.1496   6.14526 )
    beta        : -1.44388    ( -0.127393   0.125426 )
    Epeak [keV] : 36.7667      ( -36.1209 -36.1209 )
    Norm@50keV   : 5.68411E-03    ( -0.00226641   0.404298 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          90.34 using 59 PHA bins.
    # Reduced chi-squared =          1.643 for     55 degrees of freedom 
    # Null hypothesis probability =   1.881036e-03
     
    Photon flux (15-150 keV)    in 87.12 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)  = 5.67e-07
    S(50-100 keV) = 8.34e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 65.8799999952316 sec.
    Hardness ratio (energy fluence ratio) = 1.4709
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.22056
    Count Ratio (50-100 keV) / (15-25 keV) = 1.13399
    

    Mask shadow pattern

    IMX = -6.120018621672628E-01, IMY = -4.172149212453142E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    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:
    -239.128000 -9.472000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6307  22.0118    0.3  37.1   22.2   9.3070  33.4    0.2	Crab                          
     25.3066  48.3131    2.9  36.2  118.5   1.4957   4.0 ------	UNKNOWN                       
    344.4094  53.5971    3.0  51.1  149.9   3.6281   3.9 ------	UNKNOWN                       
     88.9460   8.4175    2.3  50.7   14.7   2.7341   4.9 ------	UNKNOWN                       
    335.5182  66.9809    2.4  44.1  166.4   1.5453   4.7 ------	UNKNOWN                       
    137.4544  33.3987    3.9  42.2  -57.5   1.8325   2.9 ------	UNKNOWN                       
    136.2027  25.3954    4.0  48.2  -49.9   2.8591   2.9 ------	UNKNOWN                       
    155.5993  47.6601    2.9  40.9  -87.4   3.6849   4.0 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -9.472000 77.652000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.5124  21.9621  245.2  37.2   22.4  -0.0074  -0.0    7.4	Crab                          
     72.7798  20.4974    2.1  39.8   38.1   1.2485   5.5 ------	UNKNOWN                       
      8.3922  61.1334    0.5  36.5  145.7   3.9626  21.1 ------	UNKNOWN                       
    245.7847  71.5138    2.6  48.6 -153.3   1.0132   4.3 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    415.172600 962.932000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.5747  35.4031   14.3  48.3 -162.8  -0.5094  -0.8    6.8	Her X-1                       
    274.8369  34.6717    3.8  56.9  179.3   5.4308   3.1 ------	UNKNOWN                       
    219.0219  58.6863    2.5  15.7 -153.1   1.2339   4.6 ------	UNKNOWN                       
    152.1214  24.8590    2.5  47.6  -31.4   2.7254   4.6 ------	UNKNOWN                       
    249.5722  26.8507    4.0  53.9 -152.9   2.9602   2.9 ------	UNKNOWN                       
    243.9114  23.1040    4.2  55.2 -145.3   5.8461   2.8 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 09:01:07 EDT 2015