batgrbproduct Analysis for Trigger=312242

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jun 22 16:57:03 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger312242
======================================================================

  Trigger: 00312242      Segment: 000

  BAT Trigger Time: 233270514.112   [s; MET]
      Trigger Stop: 233270517.184   [s; MET]
               UTC: 2008-05-23T21:21:51.299440    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 20.7319456343948   Dec: -64.0535352908149  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7
     Image Trigger?:     NO
     Rate S/N Ratio:     11.2249721603218  [ if not an image trigger ]
     Image S/N Ratio:    7

  Flight Position:   [ source = BAT ]
    RA: 20.7319456343948   Dec: -64.0535352908149  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 20.7698948126746   Dec: -64.0522452233304  [deg; J2000]  
        { 01h 23m 04.8s , -64d 03' 08.1" }
         +/- 1.84240035623572 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.921638007230186 [arcmin] (formal 1-sigma fit error)
    SNR: 12.7056932838099
 
  Angular difference between Flight and Ground position is 0.999262 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 48 +/- 22.6274169979695
        Measured from: -15.1119999885559
                   to: 32.8880000114441     [s; relative to TRIGTIME]
     T50: 16 +/- 16
        Measured from: 0.888000011444092
                   to: 16.8880000114441     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 8.38800001144409     
                   to: 9.38800001144409     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.1119999885559     
                   to: 32.8880000114441     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.278569   0.406990   0.407655   0.083012
           0.031531   0.033154   0.029413   0.024890 [error]
 Peak      0.006812   0.020349   0.007820  -0.003491
           0.004586   0.004803   0.004362   0.003729 [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 7.95e-08 1.68e-07 2.78e-07 1.05e-06 7.67e-07 1.57e-06   erg/cm2
              Error 1.14e-08 1.47e-08 2.75e-08 2.25e-07 6.92e-08 2.44e-07   erg/cm2
Peak flux Power-law 9.32e-02 9.38e-02 6.63e-02 7.44e-02 2.83e-01 3.28e-01   ph/cm2/s
              Error 4.98e-02 3.56e-02 3.17e-02 8.08e-02 1.06e-01 1.28e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.74e-08 1.81e-07 2.96e-07 3.66e-07 7.24e-07 9.10e-07   erg/cm2
              Error 1.40e-08 1.79e-08 3.18e-08 2.65e-07 7.56e-08 2.71e-07   erg/cm2
Peak flux Cutoff-PL 6.69e-02 1.36e-01 5.46e-02 1.91e-03 2.59e-01 2.59e-01   ph/cm2/s
              Error 5.52e-02 6.12e-02 5.38e-02 3.08e-02 1.05e-01 1.06e-01   ph/cm2/s
 
Fluence        Band 6.68e-08 1.80e-07 2.95e-07 3.67e-07 7.24e-07 9.11e-07   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 7.01e-02 1.31e-01 6.14e-02 3.94e-03 2.66e-01 2.66e-01   ph/cm2/s
              Error -------- -------- -------- -------- 9.90e-02 --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.271    0.136    -      -           1.61e-03 1.29e-04   77.390 57
CPL   0.431    0.632      97.6   60.1      4.09e-03 3.14e-03   71.000 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.501    0.572    -      -           2.26e-03 8.96e-04   65.630 57
CPL  -1.560    0.649      48.3   55.3      1.30e-01 4.12e+04   62.120 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: 34.944000 sec.
T50 in the 50-300 keV band: 20.928000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   48.000  -15.112   32.888
T90    48.000  -15.112   32.888
T50    16.000    0.888   16.888
Peak    1.000    8.388    9.388
  • Click here for the BAT GCN circular template
  • Special notes of this burst

    Image

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

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
       20.7699   -64.0522   0.0152     9.6990  -170.7357         1.1207534     12.706 TRIG_00312242                 
     
    Foreground time interval of the image:
    -15.112  32.888 (delta_t =  48.000 [sec])
    Background time interval of the image:
    -48.211 -15.112 (delta_t =  33.099 [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 3.072000
    

    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 3.072000
    

    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 3.072000
    

    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  -15.112 sec. to   32.888 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.27131     ( -0.136371   0.135697 )
    Norm@50keV  : 1.60604E-03    ( -0.000128972   0.000128897 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.39 using 59 PHA bins.
    # Reduced chi-squared =          1.358 for     57 degrees of freedom 
    # Null hypothesis probability =   3.744407e-02
     
    Photon flux (15-150 keV)    in 48 sec: 0.190629 ( -0.015539  0.0155572 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.67266e-07 ( -6.89213e-08  6.9468e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -15.112 sec. to   32.888 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.430540     ( -0.680253   0.584062 )
    Epeak [keV] : 97.6302      ( -22.7582 97.3806 )
    Norm@50keV  : 4.09382E-03    ( -0.0019186   0.00435507 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.00 using 59 PHA bins.
    # Reduced chi-squared =          1.268 for     56 degrees of freedom 
    # Null hypothesis probability =   8.547481e-02
     
    Photon flux (15-150 keV)    in 48 sec: 0.183588 ( -0.016393  0.016305 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.23878e-07 ( -7.524e-08  7.59456e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from  -15.112 sec. to   32.888 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.430456   ( -0.502322   0.758813 )
    beta        : -10.0000    ( 10   3.55271e-15 )
    Epeak [keV] : 97.6098      ( -29.3116 97.2527 )
    Norm@50keV   : 4.09432E-03    ( -0.00191962   0.00435722 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.00 using 59 PHA bins.
    # Reduced chi-squared =          1.291 for     55 degrees of freedom 
    # Null hypothesis probability =   7.205617e-02
     
    Photon flux (15-150 keV)    in 48 sec: 0.184408 (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.23586e-07 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 17.5865  (-1.62918  1.84206)
    R^2/D10^2   : 1.34173E-02  (-0.00382322   0.00521238)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          86.09 using 59 PHA bins.
    # Reduced chi-squared =          1.510 for     57 degrees of freedom 
    # Null hypothesis probability =   7.677213e-03
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.017e-08   6.108e-09
    25- 50  1.825e-07   1.963e-08
    50-150  4.072e-07   5.844e-08
    15-150  6.299e-07   7.344e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (      )
    Norm        : 0.787499       (-0.0635687     0.063565)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          85.21 using 59 PHA bins.
    # Reduced chi-squared =          1.495 for     57 degrees of freedom 
    # Null hypothesis probability =   9.127266e-03
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.411e-08   9.336e-09
    25- 50  1.810e-07   4.207e-08
    50-150  3.971e-07   1.434e-07
    15-150  6.722e-07   1.652e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 5.37595        (-1.71231      2.88434)
    R1^2/D10^2  : 0.303157        (-0.232232      1.18734)
    kT2 [keV]   : 21.4781        (-2.8639      4.78684)
    R2^2/D10^2  : 6.19957E-03    (-0.00332275   0.00234293)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.27 using 59 PHA bins.
    # Reduced chi-squared =          1.259 for     55 degrees of freedom 
    # Null hypothesis probability =   9.334015e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.257e-08   3.184e-08
    25- 50  1.703e-07   4.927e-08
    50-150  4.630e-07   1.158e-07
    15-150  7.059e-07   1.722e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    8.388 sec. to    9.388 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.50087     ( -0.555485   0.58848 )
    Norm@50keV  : 2.26310E-03    ( -0.000902655   0.000889662 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.63 using 59 PHA bins.
    # Reduced chi-squared =          1.151 for     57 degrees of freedom 
    # Null hypothesis probability =   2.024582e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.282589 ( -0.10558  0.105687 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.14668e-08 ( -8.94111e-09  9.52152e-09 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    8.388 sec. to    9.388 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -1.55998     ( 1.61816   2.91635 )
    Epeak [keV] : 48.2861      ( -15.294 95.247 )
    Norm@50keV  : 0.129504    ( -0.162079   82314.2 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          62.12 using 59 PHA bins.
    # Reduced chi-squared =          1.109 for     56 degrees of freedom 
    # Null hypothesis probability =   2.673290e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.259480 ( -0.101333  0.108376 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.58957e-08 ( -6.94256e-09  1.0997e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    8.388 sec. to    9.388 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.95572   ( -5.59019   -4.95572 )
    beta        : -2.64514    ( 2.64514   1.15396 )
    Epeak [keV] : 36.9226      ( -12.1111 13.3759 )
    Norm@50keV   : 27.9073    ( -9.42325   278.06 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.29 using 59 PHA bins.
    # Reduced chi-squared =          1.114 for     55 degrees of freedom 
    # Null hypothesis probability =   2.607480e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.265711 ( 6.73429  -0.096017 ) 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]    : 12.3440  (-3.60246  6.18403)
    R^2/D10^2   : 7.11258E-02  (-0.0711268   0.173166)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          62.23 using 59 PHA bins.
    # Reduced chi-squared =          1.092 for     57 degrees of freedom 
    # Null hypothesis probability =   2.955138e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.297e-09   1.426e-09
    25- 50  7.468e-09   4.534e-09
    50-150  6.970e-09   4.793e-09
    15-150  1.673e-08   1.061e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 159.626       (-158.759      -158.759)
    Norm        : 1.19387       (-0.443387     0.60397)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          64.75 using 59 PHA bins.
    # Reduced chi-squared =          1.136 for     57 degrees of freedom 
    # Null hypothesis probability =   2.245595e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.049e-09   1.914e-09
    25- 50  5.702e-09   3.540e-09
    50-150  1.154e-08   7.545e-09
    15-150  2.029e-08   1.286e-08
    
    Double BB
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 10.1240        (-9.61918      -9.61918)
    R1^2/D10^2  : 9.40251E-02        (-0.0288375      -0.0288375)
    kT2 [keV]   : 18.2179        (-13.1745      -13.1745)
    R2^2/D10^2  : 6.55532E-03    (   )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          62.22 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          62.12 using 59 PHA bins.
    # Reduced chi-squared =          1.131 for     55 degrees of freedom 
    # Reduced chi-squared =          1.129 for     55 degrees of freedom 
    # Null hypothesis probability =   2.347674e-01
    # Null hypothesis probability =   2.374718e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.320e-09   4.044e-06
    25- 50  7.458e-09   3.565e-05
    50-150  7.010e-09   8.175e-04
    15-150  1.679e-08   8.565e-04
    

    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: 1.27131     ( -0.136371   0.135697 )
    Norm@50keV  : 1.60604E-03    ( -0.000128972   0.000128897 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.39 using 59 PHA bins.
    # Reduced chi-squared =          1.358 for     57 degrees of freedom 
    # Null hypothesis probability =   3.744407e-02
     
    Photon flux (15-150 keV)    in 48 sec: 0.190629 ( -0.015539  0.0155572 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.67266e-07 ( -6.89213e-08  6.9468e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.430540     ( -0.680253   0.584062 )
    Epeak [keV] : 97.6302      ( -22.7582 97.3806 )
    Norm@50keV  : 4.09382E-03    ( -0.0019186   0.00435507 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.00 using 59 PHA bins.
    # Reduced chi-squared =          1.268 for     56 degrees of freedom 
    # Null hypothesis probability =   8.547481e-02
     
    Photon flux (15-150 keV)    in 48 sec: 0.183588 ( -0.016393  0.016305 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.23878e-07 ( -7.524e-08  7.59456e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.430456   ( -0.502322   0.758813 )
    beta        : -10.0000    ( 10   1.79412e-13 )
    Epeak [keV] : 97.6098      ( -29.3116 97.2527 )
    Norm@50keV   : 4.09432E-03    ( -0.00191962   0.00435722 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.00 using 59 PHA bins.
    # Reduced chi-squared =          1.291 for     55 degrees of freedom 
    # Null hypothesis probability =   7.205617e-02
     
    Photon flux (15-150 keV)    in 48 sec: 0.184408 (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.23586e-07 ( 0  0 ) ergs/cm2
     
    

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

    S(25-50 keV)  = 1.68e-07
    S(50-100 keV) = 2.78e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 48 sec.
    Hardness ratio (energy fluence ratio) = 1.65476
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.461
    Count Ratio (50-100 keV) / (15-25 keV) = 1.46339
    

    Mask shadow pattern

    IMX = -1.686856964636226E-01, IMY = 2.751554163584609E-02
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 3.072000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 3.072000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 3.072000
    

    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:
    -48.211400 -15.112000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.4254 -40.5100    8.2  54.3   -8.6  -0.2267  -1.4    5.4	Vela X-1                      
    170.4940 -60.7613  622.4  43.9   28.3   0.0020   0.0    9.8	Cen X-3                       
    186.5520 -62.7620   12.7  44.2   39.6  -0.1401  -0.9    2.9	GX 301-2                      
    348.0501 -55.2273    2.5  26.4  160.5   0.2534   4.6 ------	UNKNOWN                       
    125.3244 -39.0884    2.1  52.5  -18.2   0.7716   5.4 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -15.112000 32.888000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.6316 -40.5996   12.7  54.3   -8.4   0.2645   0.9    5.4	Vela X-1                      
    170.0896 -60.4829    6.3  44.1   27.9   0.4033   1.8   10.7	Cen X-3                       
    186.6909 -62.7197    5.5  44.2   39.6   0.5909   2.1    3.2	GX 301-2                      
    325.1862 -59.5077    2.5  30.2  134.1   0.6522   4.5 ------	UNKNOWN                       
     20.7699 -64.0523    0.9   9.7 -170.7   1.1208  12.7 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    75.188590 867.388600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    147.2066 -60.7112    2.4  48.9   21.5   4.2140   4.8 ------	UNKNOWN                       
     12.7315 -38.1788    2.8  26.3 -141.4   1.1401   4.2 ------	UNKNOWN                       
     35.9570 -39.4125    2.7  26.2  -99.7   1.6897   4.4 ------	UNKNOWN                       
      2.7016 -16.3717    3.0  49.3 -150.1   2.6201   3.9 ------	UNKNOWN                       
    
    Plot creation:
    Mon Jun 22 17:07:33 EDT 2015