batgrbproduct analysis for trigger=332851

batgrbproduct Analysis for Trigger=332851

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done using the HEASARC data.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 19 21:18:18 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger332851
======================================================================

  Trigger: 00332851      Segment: 000

  BAT Trigger Time: 246846304   [s; MET]
      Trigger Stop: 246846432   [s; MET]
               UTC: 2008-10-28T00:25:00.790760    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 121.890264700736   Dec: 2.31110706505449  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    17.95
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    17.95

  Flight Position:   [ source = BAT ]
    RA: 121.890264700736   Dec: 2.31110706505449  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 121.889592537456   Dec: 2.30536988059391  [deg; J2000]  
        { 08h 07m 33.5s , +02d 18' 19.3" }
         +/- 1.16676468691905 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.637722226404538 [arcmin] (formal 1-sigma fit error)
    SNR: 24.4021439745795
 
  Angular difference between Flight and Ground position is 0.346582 arcmin
 
  Partial Coding Fraction: 0.859375    [ including projection effects ]

  Duration
     T90: 284.423999994993 +/- 30.548726983597
        Measured from: 50.6480000019073
                   to: 335.071999996901     [s; relative to TRIGTIME]
     T50: 135.004000008106 +/- 7.69633783266073
        Measured from: 90.1680000126362
                   to: 225.172000020742     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 73.7240000069141     
                   to: 74.7240000069141     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 29.3440000116825     
                   to: 397.087999999523     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.223726   2.802350   1.692750   0.244879
           0.090422   0.094498   0.084349   0.076247 [error]
 Peak      0.018467   0.027558   0.016355   0.005247
           0.005119   0.005287   0.004531   0.004235 [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 7.07e-07 1.10e-06 1.29e-06 2.91e-06 3.95e-06 6.00e-06   erg/cm2
              Error 5.12e-08 4.77e-08 8.32e-08 4.00e-07 1.91e-07 4.68e-07   erg/cm2
Peak flux Power-law 2.07e-01 1.91e-01 1.23e-01 1.22e-01 5.71e-01 6.43e-01   ph/cm2/s
              Error 6.86e-02 4.15e-02 3.80e-02 7.50e-02 1.22e-01 1.42e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.68e-07 1.14e-06 1.29e-06 1.61e-06 3.80e-06 4.71e-06   erg/cm2
              Error 6.06e-08 5.82e-08 8.79e-08 -------- 2.28e-07 8.58e-07   erg/cm2
Peak flux Cutoff-PL 1.86e-01 2.07e-01 1.27e-01 5.15e-02 5.55e-01 5.72e-01   ph/cm2/s
              Error 8.37e-02 5.55e-02 4.22e-02 7.15e-02 1.29e-01 1.68e-01   ph/cm2/s
 
Fluence        Band 6.50e-07 1.15e-06 1.26e-06 2.56e-06 3.85e-06 5.62e-06   erg/cm2
              Error 6.69e-08 6.54e-08 8.87e-08 -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- 5.72e-01   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    1.774    0.083    -      -           1.16e-03 5.44e-05   42.820 57
CPL   1.404    0.330      75.2   79.8      1.82e-03 7.42e-04   38.800 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.639    0.385    -      -           4.39e-03 1.05e-03   39.790 57
CPL   0.889    1.878      68.4   -4.0      1.11e-02 1.05e-01   39.210 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: 177.856000 sec.
T50 in the 50-300 keV band: 122.560000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  367.744   29.344  397.088
T90   284.424   50.648  335.072
T50   135.004   90.168  225.172
Peak    1.000   73.724   74.724

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
  121.8896     2.3054   0.0079    21.2145    25.4649         2.8584905     24.402 TRIG_00332851                 
 
Foreground time interval of the image:
 29.344 136.701 (delta_t = 107.357 [sec])
Background time interval of the image:
-322.899 -289.900 (delta_t =  32.999 [sec])
-239.000  29.344 (delta_t = 268.344 [sec])

Lightcurves

Notes:

1) The mask-weighted light curves are using the flight position.
2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
3) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
4) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
5) Time of each bin is in the middle of the bin.

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 128.000000

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 128.000000

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 128.000000

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:

1) The fitting includes the systematic errors.
2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.

Time averaged spectrum fit using the average DRM

Power-law model

Time interval is from   29.344 sec. to  397.088 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.77359     ( -0.0822206   0.0831377 )
Norm@50keV  : 1.16445E-03    ( -5.4578e-05   5.42465e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.82 using 59 PHA bins.
# Reduced chi-squared =         0.7512 for     57 degrees of freedom 
# Null hypothesis probability =   9.183052e-01
 
Photon flux (15-150 keV)    in 367.7 sec: 0.158846 ( -0.00700696  0.00701895 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.94605e-06 ( -1.90523e-07  1.91837e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   29.344 sec. to  397.088 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40442     ( -0.3433   0.317032 )
Epeak [keV] : 75.2477      ( -17.1073 142.59 )
Norm@50keV  : 1.82029E-03    ( -0.000566538   0.000917085 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.80 using 59 PHA bins.
# Reduced chi-squared =         0.6929 for     56 degrees of freedom 
# Null hypothesis probability =   9.612124e-01
 
Photon flux (15-150 keV)    in 367.7 sec: 0.155045 ( -0.007674  0.007679 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.79724e-06 ( -2.27397e-07  2.28856e-07 ) ergs/cm2

Band function

Time interval is from   29.344 sec. to  397.088 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.40437   ( -0.311738   0.176367 )
beta        : -10.0000    ( 10   5.32907e-15 )
Epeak [keV] : 75.2313      ( -15 143.052 )
Norm@50keV   : 1.82011E-03    ( -0.000566306   0.000918015 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.80 using 59 PHA bins.
# Reduced chi-squared =         0.7055 for     55 degrees of freedom 
# Null hypothesis probability =   9.519319e-01
 
Photon flux (15-150 keV)    in 367.7 sec: 0.155910 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.84772e-06 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.2720  (  )
R^2/D10^2   : 3.36163E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         148.12 using 59 PHA bins.
# Reduced chi-squared =         2.5986 for     57 degrees of freedom 
# Null hypothesis probability =   4.873657e-10
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.943e-07   3.225e-08
25- 50  1.274e-06   6.747e-08
50-150  1.171e-06   1.158e-07
15-150  2.839e-06   1.430e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 110.899       (-19.3034      23.9805)
Norm        : 0.676805       (-0.0398292     0.0473342)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.09 using 59 PHA bins.
# Reduced chi-squared =         0.6858 for     57 degrees of freedom 
# Null hypothesis probability =   9.663971e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.498e-07   5.240e-08
25- 50  1.146e-06   6.711e-08
50-150  1.965e-06   5.297e-07
15-150  3.761e-06   5.622e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.42858        (-0.874807      0.938933)
R1^2/D10^2  : 0.247417        (-0.0926667      0.172925)
kT2 [keV]   : 22.3930        (-3.08479      4.40589)
R2^2/D10^2  : 2.80661E-03    (-0.00138696   0.00221804)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.96 using 59 PHA bins.
# Reduced chi-squared =         0.6902 for     55 degrees of freedom 
# Null hypothesis probability =   9.612689e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.430e-07   9.579e-08
25- 50  1.140e-06   1.316e-07
50-150  1.978e-06   4.127e-07
15-150  3.761e-06   5.541e-07

Peak spectrum fit

Power-law model

Time interval is from   73.724 sec. to   74.724 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63905     ( -0.373457   0.39631 )
Norm@50keV  : 4.39141E-03    ( -0.00106469   0.00103003 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.79 using 59 PHA bins.
# Reduced chi-squared =         0.6981 for     57 degrees of freedom 
# Null hypothesis probability =   9.595813e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.571356 ( -0.122334  0.122387 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.08879e-08 ( -1.03114e-08  1.06743e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   73.724 sec. to   74.724 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.889333     ( -2.4357   1.31994 )
Epeak [keV] : 68.3716      ( -60.3597 -68.3628 )
Norm@50keV  : 1.11279E-02    ( -0.0111331   0.198377 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.21 using 59 PHA bins.
# Reduced chi-squared =         0.7002 for     56 degrees of freedom 
# Null hypothesis probability =   9.568399e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.555010 ( -0.12935  0.127706 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.8294e-08 ( -1.08853e-08  1.18264e-08 ) ergs/cm2

Band function

Time interval is from   73.724 sec. to   74.724 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.960452   ( -3.25307   1.49029 )
beta        : -9.10235    ( 8.91454   18.9145 )
Epeak [keV] : 72.0467      ( -31.7525 -72.0467 )
Norm@50keV   : 1.00798E-02    ( -0.00214114   0.00444417 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.22 using 59 PHA bins.
# Reduced chi-squared =         0.7131 for     55 degrees of freedom 
# Null hypothesis probability =   9.466634e-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]    : 13.1914  (-2.76941  3.67301)
R^2/D10^2   : 0.102651  (-0.0607007   0.136731)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.75 using 59 PHA bins.
# Reduced chi-squared =         0.7324 for     57 degrees of freedom 
# Null hypothesis probability =   9.352916e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.787e-09   1.632e-09
25- 50  1.325e-08   5.580e-09
50-150  1.470e-08   7.505e-09
15-150  3.174e-08   1.433e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 152.695       (-88.3406      -150.054)
Norm        : 2.35948       (-0.531042     0.770476)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.37 using 59 PHA bins.
# Reduced chi-squared =         0.6908 for     57 degrees of freedom 
# Null hypothesis probability =   9.637665e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.051e-09   3.482e-09
25- 50  1.124e-08   6.475e-09
50-150  2.236e-08   1.362e-08
15-150  3.965e-08   2.318e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.32483        (-1.72222      4.47067)
R1^2/D10^2  : 87.1951        (-99.0362      1067.49)
kT2 [keV]   : 14.9884        (-3.4377      6.43295)
R2^2/D10^2  : 6.05842E-02    (-0.0487526   0.045304)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.61 using 59 PHA bins.
# Reduced chi-squared =         0.6839 for     55 degrees of freedom 
# Null hypothesis probability =   9.647347e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.625e-09   2.970e-09
25- 50  1.147e-08   6.681e-09
50-150  1.730e-08   1.084e-08
15-150  3.438e-08   1.830e-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: 1.78647     ( -0.107104   0.108936 )
Norm@50keV  : 1.60922E-03    ( -0.000106321   0.000105322 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.22 using 59 PHA bins.
# Reduced chi-squared =          1.039 for     57 degrees of freedom 
# Null hypothesis probability =   3.945704e-01
 
Photon flux (15-150 keV)    in 107.4 sec: 0.220595 ( -0.0129275  0.012937 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.59192e-06 ( -1.07609e-07  1.08778e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25358     ( -0.48738   0.430903 )
Epeak [keV] : 61.5370      ( -12.698 69.1845 )
Norm@50keV  : 3.17480E-03    ( -0.00131674   0.00271426 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.63 using 59 PHA bins.
# Reduced chi-squared =         0.9755 for     56 degrees of freedom 
# Null hypothesis probability =   5.269151e-01
 
Photon flux (15-150 keV)    in 107.4 sec: 0.214605 ( -0.013751  0.013749 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49948e-06 ( -1.28569e-07  1.30523e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.27334   ( -0.41147   0.433843 )
beta        : -9.36650    ( 9.37108   19.3711 )
Epeak [keV] : 62.6403      ( -12.8674 57.043 )
Norm@50keV   : 3.08613E-03    ( -0.0012301   0.000993344 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.64 using 59 PHA bins.
# Reduced chi-squared =         0.9934 for     55 degrees of freedom 
# Null hypothesis probability =   4.884618e-01
 
Photon flux (15-150 keV)    in 107.4 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.51532e-06 ( -1.51457e-06  -1.16787e-07 ) ergs/cm2

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

S(25-50 keV)  = 1.10e-06
S(50-100 keV) = 1.29e-06

T90 vs. Hardness ratio plot

T90                                   = 284.423999994993 sec.
Hardness ratio (energy fluence ratio) = 1.17273

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.2602
Count Ratio (50-100 keV) / (15-25 keV) = 0.761222

Mask shadow pattern

IMX = 3.504548298085697E-01, IMY = -1.668952291069005E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 128.000000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 128.000000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 128.000000

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:
-322.899410 -289.900000
-239.000000 29.344000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
124.6739  10.1625    2.9  13.2   33.6   0.6933   3.9 ------	UNKNOWN                       
137.0808 -11.4677    2.3  31.7  -15.3   1.0025   4.9 ------	UNKNOWN

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

Time interval of the image:
29.344000 136.700600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
121.8896   2.3053    0.5  21.2   25.5   2.8582  24.4 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
179.900600 867.000600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.4183 -40.4261    7.3  44.5  -27.7  -0.9444  -1.6    9.2	Vela X-1                      
 98.4222 -39.6132    2.7  47.1   11.8   3.5360   4.3 ------	UNKNOWN                       
130.6691  56.1020    3.1  54.3  173.1   5.5247   3.8 ------	UNKNOWN                       
118.9243  16.9855    2.6  15.0  156.0   1.4338   4.5 ------	UNKNOWN                       
121.8632   2.2995    1.0   0.0   72.0   3.8376  11.7 ------	UNKNOWN                       
131.3552   3.8338    2.4   9.6 -112.4   1.4058   4.8 ------	UNKNOWN                       
129.8072 -44.1303    3.2  47.0  -20.7   2.3811   3.7 ------	UNKNOWN                       
135.5690 -48.3022    2.5  52.0  -24.5   4.2391   4.6 ------	UNKNOWN

Plot creation:
Sun May 31 05:43:58 EDT 2015