batgrbproduct analysis for trigger=356776

batgrbproduct Analysis for Trigger=356776

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 15:40:42 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger356776
======================================================================

  Trigger: 00356776      Segment: 000

  BAT Trigger Time: 268717100.16   [s; MET]
      Trigger Stop: 268717104.256   [s; MET]
               UTC: 2009-07-08T03:38:15.267780    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 154.628878204965   Dec: 26.636688851161  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.69
     Image Trigger?:     NO
     Rate S/N Ratio:     13.0384048104053  [ if not an image trigger ]
     Image S/N Ratio:    7.69

  Flight Position:   [ source = BAT ]
    RA: 154.628878204965   Dec: 26.636688851161  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 154.634669732545   Dec: 26.6116401870788  [deg; J2000]  
        { 10h 18m 32.3s , +26d 36' 41.9" }
         +/- 1.68487155041845 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.799458119438161 [arcmin] (formal 1-sigma fit error)
    SNR: 14.4361546844792
 
  Angular difference between Flight and Ground position is 1.534688 arcmin
 
  Partial Coding Fraction: 0.2734375    [ including projection effects ]

  Duration
     T90: 8.70799994468689 +/- 1.39436723529632
        Measured from: 0.495999991893768
                   to: 9.20399993658066     [s; relative to TRIGTIME]
     T50: 4.07199996709824 +/- 1.42666042084233
        Measured from: 2.47599995136261
                   to: 6.54799991846085     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.37199997901917     
                   to: 4.37199997901917     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.171999990940094     
                   to: 9.55199998617172     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.286741   0.311957   0.202016   0.027521
           0.032268   0.035088   0.031168   0.027929 [error]
 Peak      0.043312   0.045341   0.042130   0.006093
           0.010340   0.011526   0.010095   0.008944 [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 9.78e-08 1.44e-07 1.58e-07 3.27e-07 5.00e-07 7.28e-07   erg/cm2
              Error 1.71e-08 1.74e-08 3.03e-08 1.24e-07 7.13e-08 1.56e-07   erg/cm2
Peak flux Power-law 5.60e-01 4.40e-01 2.32e-01 1.77e-01 1.31e+00 1.41e+00   ph/cm2/s
              Error 1.83e-01 9.92e-02 8.49e-02 1.25e-01 2.97e-01 3.22e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.11e-08 1.57e-07 1.59e-07 1.15e-07 4.73e-07 5.22e-07   erg/cm2
              Error 1.91e-08 2.32e-08 3.43e-08 1.88e-07 7.65e-08 1.92e-07   erg/cm2
Peak flux Cutoff-PL 5.31e-01 4.61e-01 2.39e-01 1.13e-01 1.30e+00 1.34e+00   ph/cm2/s
              Error 2.11e-01 1.08e-01 9.36e-02 1.58e-01 3.01e-01 3.50e-01   ph/cm2/s
 
Fluence        Band 9.05e-08 1.56e-07 1.59e-07 1.19e-07 4.74e-07 5.28e-07   erg/cm2
              Error 1.80e-08 -------- -------- -------- 7.64e-08 --------   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    1.863    0.214    -      -           5.80e-03 8.24e-04   60.300 57
CPL   1.172    0.867      53.0  -17.7      1.41e-02 2.12e-02   58.050 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.923    0.428    -      -           9.05e-03 2.54e-03   59.380 57
CPL   1.522    1.228      56.1    0.0      1.49e-02 0.00e+00   59.160 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: 8.000000 sec.
T50 in the 50-300 keV band: 4.544000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    9.380    0.172    9.552
T90     8.708    0.496    9.204
T50     4.072    2.476    6.548
Peak    1.000    3.372    4.372

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
  154.6347    26.6116   0.0133    42.6323  -136.7072         0.9271376     14.436 TRIG_00356776                 
 
Foreground time interval of the image:
  0.172   9.552 (delta_t =   9.380 [sec])
Background time interval of the image:
-239.160   0.172 (delta_t = 239.332 [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 4.096000

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 4.096000

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 4.096000

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    0.172 sec. to    9.552 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.86325     ( -0.208086   0.219247 )
Norm@50keV  : 5.79939E-03    ( -0.000832808   0.000814818 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.30 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     57 degrees of freedom 
# Null hypothesis probability =   3.573924e-01
 
Photon flux (15-150 keV)    in 9.38 sec: 0.819591 ( -0.0996424  0.0996843 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.00114e-07 ( -7.0685e-08  7.19625e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.172 sec. to    9.552 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.17186     ( -0.955387   0.77861 )
Epeak [keV] : 53.0018      ( -17.694 -53.0018 )
Norm@50keV  : 1.40976E-02    ( -0.00863582   0.0337355 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.05 using 59 PHA bins.
# Reduced chi-squared =          1.037 for     56 degrees of freedom 
# Null hypothesis probability =   3.994814e-01
 
Photon flux (15-150 keV)    in 9.38 sec: 0.801905 ( -0.101485  0.10156 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.73279e-07 ( -7.50597e-08  7.7854e-08 ) ergs/cm2

Band function

Time interval is from    0.172 sec. to    9.552 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.17136   ( -0.543932   1.29816 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 52.9834      ( -17.599 8169.92 )
Norm@50keV   : 1.41055E-02    ( -0.00864607   0.0337324 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.05 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     55 degrees of freedom 
# Null hypothesis probability =   3.634071e-01
 
Photon flux (15-150 keV)    in 9.38 sec: 0.808630 ( 6.19137  -0.108896 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.74027e-07 ( -4.73961e-07  -7.63166e-08 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.2785  (-1.68134  1.93963)
R^2/D10^2   : 0.247944  (-0.110518   0.20468)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.02 using 59 PHA bins.
# Reduced chi-squared =          1.281 for     57 degrees of freedom 
# Null hypothesis probability =   7.483681e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.209e-08   1.391e-08
25- 50  1.812e-07   2.800e-08
50-150  1.327e-07   3.669e-08
15-150  3.761e-07   6.271e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 85.7557       (-27.7874      54.2865)
Norm        : 3.79673       (-0.65685     0.774963)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.11 using 59 PHA bins.
# Reduced chi-squared =          1.020 for     57 degrees of freedom 
# Null hypothesis probability =   4.340304e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.276e-08   1.637e-08
25- 50  1.552e-07   2.228e-08
50-150  2.293e-07   1.089e-07
15-150  4.772e-07   1.271e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.42072        (-1.45888      1.96242)
R1^2/D10^2  : 2.49889        (-1.67111      3.51754)
kT2 [keV]   : 18.7148        (-4.38719      8.03807)
R2^2/D10^2  : 2.83012E-02    (-0.0214788   0.0373189)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.92 using 59 PHA bins.
# Reduced chi-squared =          1.017 for     55 degrees of freedom 
# Null hypothesis probability =   4.400778e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.629e-08   5.119e-08
25- 50  1.492e-07   7.804e-08
50-150  2.280e-07   1.300e-07
15-150  4.735e-07   2.446e-07

Peak spectrum fit

Power-law model

Time interval is from    3.372 sec. to    4.372 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.92344     ( -0.395892   0.459997 )
Norm@50keV  : 9.05409E-03    ( -0.00261732   0.00246116 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.38 using 59 PHA bins.
# Reduced chi-squared =          1.042 for     57 degrees of freedom 
# Null hypothesis probability =   3.890040e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.31248 ( -0.296846  0.296943 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.3267e-08 ( -2.24101e-08  2.30902e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    3.372 sec. to    4.372 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52247     ( -1.78531   0.671008 )
Epeak [keV] : 56.0717      (   )
Norm@50keV  : 1.48905E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.16 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     56 degrees of freedom 
# Null hypothesis probability =   3.610488e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.29821 ( -0.301102  0.30093 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.16338e-08 ( -2.27123e-08  2.37832e-08 ) ergs/cm2

Band function

Time interval is from    3.372 sec. to    4.372 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.57249   ( -4.06728   1.89669 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 55.9330      ( -34.0476 -55.933 )
Norm@50keV   : 1.41062E-02    ( -0.00594105   0.0421497 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.16 using 59 PHA bins.
# Reduced chi-squared =          1.076 for     55 degrees of freedom 
# Null hypothesis probability =   3.262333e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.16074e-08 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.9799  (-3.65806  4.00681)
R^2/D10^2   : 0.237981  (-0.149431   0.540371)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.27 using 59 PHA bins.
# Reduced chi-squared =          1.145 for     57 degrees of freedom 
# Null hypothesis probability =   2.114364e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.504e-09   4.704e-09
25- 50  2.924e-08   1.356e-08
50-150  3.111e-08   1.648e-08
15-150  6.886e-08   3.112e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 84.9458       (-42.6192      -84.9458)
Norm        : 6.07279       (-1.72088     2.49393)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.24 using 59 PHA bins.
# Reduced chi-squared =          1.039 for     57 degrees of freedom 
# Null hypothesis probability =   3.936842e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.581e-08   5.481e-09
25- 50  2.640e-08   1.069e-08
50-150  3.876e-08   2.893e-08
15-150  8.097e-08   4.611e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.86814        (-1.82773      2.69478)
R1^2/D10^2  : 17.7254        (-16.0181      715.681)
kT2 [keV]   : 17.5349        (-4.82024      9.02232)
R2^2/D10^2  : 6.55145E-02    (-0.052493   0.0994536)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.08 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     55 degrees of freedom 
# Null hypothesis probability =   3.977357e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.774e-08   9.460e-09
25- 50  2.292e-08   1.252e-08
50-150  4.089e-08   2.615e-08
15-150  8.155e-08   4.315e-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: 1.86325     ( -0.208086   0.219247 )
Norm@50keV  : 5.79939E-03    ( -0.000832808   0.000814818 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.30 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     57 degrees of freedom 
# Null hypothesis probability =   3.573924e-01
 
Photon flux (15-150 keV)    in 9.38 sec: 0.819591 ( -0.0996424  0.0996843 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.00114e-07 ( -7.0685e-08  7.19625e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.17186     ( -0.955387   0.77861 )
Epeak [keV] : 53.0018      ( -17.694 -53.0018 )
Norm@50keV  : 1.40976E-02    ( -0.00863582   0.0337355 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.05 using 59 PHA bins.
# Reduced chi-squared =          1.037 for     56 degrees of freedom 
# Null hypothesis probability =   3.994814e-01
 
Photon flux (15-150 keV)    in 9.38 sec: 0.801905 ( -0.101485  0.10156 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.73279e-07 ( -7.50597e-08  7.7854e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.17136   ( -0.543932   1.29816 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 52.9834      ( -17.599 8171.86 )
Norm@50keV   : 1.41055E-02    ( -0.00864607   0.0337324 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.05 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     55 degrees of freedom 
# Null hypothesis probability =   3.634071e-01
 
Photon flux (15-150 keV)    in 9.38 sec: 0.808630 ( 6.19137  -0.108896 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.74027e-07 ( -4.73961e-07  -7.63166e-08 ) ergs/cm2

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

S(25-50 keV)  = 1.44e-07
S(50-100 keV) = 1.58e-07

T90 vs. Hardness ratio plot

T90                                   = 8.70799994468689 sec.
Hardness ratio (energy fluence ratio) = 1.09722

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.08794
Count Ratio (50-100 keV) / (15-25 keV) = 0.704524

Mask shadow pattern

IMX = -6.700580134324728E-01, IMY = 6.312728320884469E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

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:
-239.160000 0.172000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
291.1477  71.7181    2.4  36.9   69.0   2.3637   4.8 ------	UNKNOWN                       
174.8613  12.7048    4.4  58.7 -159.2   3.3928   2.6 ------	UNKNOWN                       
 56.3313  35.0263    6.5  58.6  -23.1   2.1195   1.8 ------	UNKNOWN                       
 75.0377  35.2418    2.1  51.9  -39.8   5.4482   5.6 ------	UNKNOWN

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

Time interval of the image:
0.172000 9.552000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
172.6084  18.5935    2.3  52.5 -157.9   0.4366   5.0 ------	UNKNOWN                       
154.6347  26.6117    0.8  42.6 -136.7   0.9272  14.4 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
205.740590 362.910000
420.840000 761.640590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.2809  35.2937    4.1  41.8   20.7  -1.5861  -2.8    9.1	Her X-1                       
266.2988  25.3886    3.6  50.2   36.9   4.5356   3.2 ------	UNKNOWN                       
198.3113 -27.4633    2.0  44.4  168.2   3.5537   5.6 ------	UNKNOWN                       
195.7141 -15.8429    2.4  35.1  179.8   1.6706   4.7 ------	UNKNOWN

Plot creation:
Sun May 31 03:39:43 EDT 2015