batgrbproduct analysis for trigger=287409

batgrbproduct Analysis for Trigger=287409

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): Mon Jan 20 07:34:03 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger287409
======================================================================

  Trigger: 00287409      Segment: 000

  BAT Trigger Time: 208451960.036   [s; MET]
      Trigger Stop: 208451960.1   [s; MET]
               UTC: 2007-08-10T15:19:17.889760    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 8.94039483391689   Dec: 8.83544274479816  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.79
     Image Trigger?:     NO
     Rate S/N Ratio:     15.3948043183407  [ if not an image trigger ]
     Image S/N Ratio:    6.79

  Flight Position:   [ source = BAT ]
    RA: 8.94039483391689   Dec: 8.83544274479816  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 8.95523251043837   Dec: 8.81882137939258  [deg; J2000]  
        { 00h 35m 49.3s , +08d 49' 07.8" }
         +/- 2.48517876657543 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.17562189893019 [arcmin] (formal 1-sigma fit error)
    SNR: 8.28555795667913
 
  Angular difference between Flight and Ground position is 1.329839 arcmin
 
  Partial Coding Fraction: 1.03125    [ including projection effects ]

  Duration
     T90: 0.0719999969005585 +/- 0.0233237884026992
        Measured from: -0.00400000810623169
                   to: 0.0679999887943268     [s; relative to TRIGTIME]
     T50: 0.0280000269412994 +/- 0.019999998807908
        Measured from: 0.015999972820282
                   to: 0.0439999997615814     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.464000016450882     
                   to: 0.535999983549118     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.00800001621246338     
                   to: 0.0759999752044678     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.006922   0.007626   0.007570   0.002273
           0.001572   0.001703   0.001699   0.001250 [error]
 Peak      0.009539   0.013606   0.005849   0.004542
           0.004499   0.004689   0.004287   0.003913 [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 1.30e-09 3.15e-09 6.07e-09 2.86e-08 1.64e-08 3.92e-08   erg/cm2
              Error 5.16e-10 7.51e-10 1.42e-09 1.55e-08 3.70e-09 1.63e-08   erg/cm2
Peak flux Power-law 7.34e-02 8.26e-02 6.66e-02 8.94e-02 2.55e-01 3.12e-01   ph/cm2/s
              Error 5.03e-02 3.62e-02 3.37e-02 1.15e-01 1.03e-01 1.37e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.31e-09 3.16e-09 6.06e-09 2.82e-08 1.64e-08 3.87e-08   erg/cm2
              Error 5.47e-10 7.83e-10 1.52e-09 2.00e-08 3.70e-09 1.56e-08   erg/cm2
Peak flux Cutoff-PL 7.40e-02 8.24e-02 6.60e-02 7.96e-02 2.55e-01 3.02e-01   ph/cm2/s
              Error 5.36e-02 5.67e-02 5.13e-02 1.19e-01 1.03e-01 1.51e-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    1.054    0.361    -      -           1.84e-02 3.73e-03   61.410 57
CPL   2.289    0.000      96.4    0.0      3.11e-03 0.00e+00   61.150 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.311    0.760    -      -           2.14e-03 8.80e-04   45.750 57
CPL   1.280    2.259     974.5    0.0      2.23e-03 -6.24e-04   45.760 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    0.084   -0.008    0.076
T90     0.072   -0.004    0.068
T50     0.028    0.016    0.044
Peak    1.000   -0.464    0.536

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
    8.9552     8.8188   0.0232     7.9419  -151.4026         0.0250508      8.286 TRIG_00287409                 
 
Foreground time interval of the image:
 -0.008   0.076 (delta_t =   0.084 [sec])
Background time interval of the image:
-150.935  -0.008 (delta_t = 150.927 [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 0.064000

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 0.064000

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 0.064000

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   -0.008 sec. to    0.076 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.05436     ( -0.367366   0.354751 )
Norm@50keV  : 1.84166E-02    ( -0.0037333   0.00372633 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.41 using 59 PHA bins.
# Reduced chi-squared =          1.077 for     57 degrees of freedom 
# Null hypothesis probability =   3.209532e-01
 
Photon flux (15-150 keV)    in 0.084 sec: 2.12773 ( -0.438866  0.439742 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.64174e-08 ( -3.68766e-09  3.7197e-09 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.008 sec. to    0.076 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.28884     (     )
Epeak [keV] : 96.3931      (   )
Norm@50keV  : 3.10931E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.15 using 59 PHA bins.
# Reduced chi-squared =          1.092 for     56 degrees of freedom 
# Null hypothesis probability =   2.964562e-01
 
Photon flux (15-150 keV)    in 0.084 sec: 2.12732 ( -0.43885  0.43936 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.63902e-08 ( -3.67332e-09  3.72977e-09 ) ergs/cm2

Band function

Time interval is from   -0.008 sec. to    0.076 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.871558   ( 0.871558   4.97133 )
beta        : -1.05437    ( 1.05437   0.367346 )
Epeak [keV] : 53.7057      ( -53.7056 -53.7056 )
Norm@50keV   : 3.04393E-02    ( -0.0157414   227.441 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.41 using 59 PHA bins.
# Reduced chi-squared =          1.117 for     55 degrees of freedom 
# Null hypothesis probability =   2.571870e-01
 
Photon flux (15-150 keV)    in 0.084 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]    : 20.1162  (-5.07252  8.10414)
R^2/D10^2   : 9.98806E-02  (-0.065196   0.153657)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.36 using 59 PHA bins.
# Reduced chi-squared =          1.182 for     57 degrees of freedom 
# Null hypothesis probability =   1.638500e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.530e-10   2.860e-10
25- 50  3.265e-09   1.460e-09
50-150  9.803e-09   4.213e-09
15-150  1.372e-08   5.431e-09

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 8.55104       (-1.80214     1.80211)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.92 using 59 PHA bins.
# Reduced chi-squared =          1.174 for     57 degrees of freedom 
# Null hypothesis probability =   1.732427e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.788e-09   1.060e-09
25- 50  3.440e-09   1.986e-09
50-150  7.545e-09   4.397e-09
15-150  1.277e-08   7.522e-09

Double BB

#Fit statistic : Chi-Squared =          61.89 using 59 PHA bins.
#Fit statistic : Chi-Squared =          61.10 using 59 PHA bins.
#Fit statistic : Chi-Squared =          61.08 using 59 PHA bins.
# Reduced chi-squared =          1.153 for     55 degrees of freedom 
# Reduced chi-squared =          1.132 for     55 degrees of freedom 
# Reduced chi-squared =          1.125 for     55 degrees of freedom 
# Reduced chi-squared =          1.111 for     55 degrees of freedom 
# Reduced chi-squared =          1.111 for     55 degrees of freedom 
# Null hypothesis probability =   2.032879e-01
# Null hypothesis probability =   2.338330e-01
# Null hypothesis probability =   2.436225e-01
# Null hypothesis probability =   2.661778e-01
# Null hypothesis probability =   2.667742e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.385e-09   7.978e-10
25- 50  2.702e-09   1.418e-09
50-150  1.134e-08   6.699e-09
15-150  1.542e-08   7.758e-09

Peak spectrum fit

Power-law model

Time interval is from   -0.464 sec. to    0.536 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.31085     ( -0.783998   0.735362 )
Norm@50keV  : 2.13700E-03    ( -0.000891004   0.00086821 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.75 using 59 PHA bins.
# Reduced chi-squared =         0.8027 for     57 degrees of freedom 
# Null hypothesis probability =   8.573305e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.255466 ( -0.102524  0.102716 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.10618e-08 ( -9.55544e-09  1.01853e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.464 sec. to    0.536 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.27971     ( -5.55718   -1.03828 )
Epeak [keV] : 974.535      (   )
Norm@50keV  : 2.22772E-03    ( -0.000982604   -0.00223008 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.76 using 59 PHA bins.
# Reduced chi-squared =         0.8171 for     56 degrees of freedom 
# Null hypothesis probability =   8.340140e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.255298 ( -0.103027  0.102744 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.10194e-08 ( -2.10194e-08  1.01271e-08 ) ergs/cm2

Band function

Time interval is from   -0.464 sec. to    0.536 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.75056   -4.75056 )
beta        : -1.66683    ( -3.13414   1.07658 )
Epeak [keV] : 30.1308      ( -30.131 54.4586 )
Norm@50keV   : 71.9730    ( -28.0662   1.55191e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.95 using 59 PHA bins.
# Reduced chi-squared =         0.8173 for     55 degrees of freedom 
# Null hypothesis probability =   8.312559e-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]    : 11.7088  (-4.11671  11.4454)
R^2/D10^2   : 6.99656E-02  (-0.0699656   0.260628)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.68 using 59 PHA bins.
# Reduced chi-squared =         0.8189 for     57 degrees of freedom 
# Null hypothesis probability =   8.337039e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.024e-09   1.287e-09
25- 50  6.186e-09   4.013e-09
50-150  5.014e-09   3.862e-09
15-150  1.322e-08   8.890e-09

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.358       (-199.362      -199.362)
Norm        : 1.04246       (-0.419156     0.419519)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.01 using 59 PHA bins.
# Reduced chi-squared =         0.8071 for     57 degrees of freedom 
# Null hypothesis probability =   8.510607e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.596e-09   1.747e-09
25- 50  4.993e-09   3.201e-09
50-150  1.095e-08   7.130e-09
15-150  1.854e-08   1.182e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.49890        (-3.14393      5.75335)
R1^2/D10^2  : 0.126101        (-0.107808      0.37493)
kT2 [keV]   : 199.355        (-199.363      -199.363)
R2^2/D10^2  : 4.25152E-05    (-2.24614e-05   0.0513386)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.94 using 59 PHA bins.
# Reduced chi-squared =         0.7989 for     55 degrees of freedom 
# Null hypothesis probability =   8.576992e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.327e-09   1.529e-09
25- 50  5.706e-09   3.924e-09
50-150  1.361e-08   3.449e-09
15-150  2.164e-08   7.845e-09

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: 1.05436     ( -0.367366   0.354751 )
Norm@50keV  : 1.84166E-02    ( -0.0037333   0.00372633 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.41 using 59 PHA bins.
# Reduced chi-squared =          1.077 for     57 degrees of freedom 
# Null hypothesis probability =   3.209532e-01
 
Photon flux (15-150 keV)    in 0.084 sec: 2.12773 ( -0.438866  0.439742 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.64174e-08 ( -3.68766e-09  3.7197e-09 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.28884     (     )
Epeak [keV] : 96.3931      (   )
Norm@50keV  : 3.10931E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.15 using 59 PHA bins.
# Reduced chi-squared =          1.092 for     56 degrees of freedom 
# Null hypothesis probability =   2.964562e-01
 
Photon flux (15-150 keV)    in 0.084 sec: 2.12732 ( -0.43885  0.43936 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.63902e-08 ( -3.67332e-09  3.72977e-09 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.871558   ( 0.871558   4.97133 )
beta        : -1.05437    ( 1.05437   0.367346 )
Epeak [keV] : 53.7057      ( -53.7056 -53.7056 )
Norm@50keV   : 3.04393E-02    ( -0.0157414   227.441 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.41 using 59 PHA bins.
# Reduced chi-squared =          1.117 for     55 degrees of freedom 
# Null hypothesis probability =   2.571870e-01
 
Photon flux (15-150 keV)    in 0.084 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)  = 3.15e-09
S(50-100 keV) = 6.07e-09

T90 vs. Hardness ratio plot

T90                                   = 0.0719999969005585 sec.
Hardness ratio (energy fluence ratio) = 1.92698

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.1017
Count Ratio (50-100 keV) / (15-25 keV) = 1.09361

Mask shadow pattern

IMX = -1.224874329348857E-01, IMY = 6.677523658541844E-02

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000

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:
-150.935400 -0.008000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
326.1046  38.2693    7.6  52.6  152.8   1.0381   1.5    4.5	Cyg X-2                       
 12.9394 -34.9975    2.5  36.6    4.4   0.7218   4.6 ------	UNKNOWN

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

Time interval of the image:
-0.008000 0.076000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
326.0855  38.3659   30.2  52.6  152.9   0.0067   0.4    4.8	Cyg X-2                       
326.4224   4.7189    2.0  40.5  108.8   0.0736   5.8 ------	UNKNOWN                       
350.4683   5.2653    2.8  16.8  117.4   0.0135   4.2 ------	UNKNOWN                       
  8.9552   8.8188    1.4   7.9 -151.4   0.0251   8.3 ------	UNKNOWN                       
 23.5133  56.7793    2.4  57.2 -156.3   0.0770   4.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
43.864600 963.050900
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
326.2225  38.4458   11.0  48.4  161.2  -1.3817  -1.0    7.8	Cyg X-2                       
  7.9414 -24.7083    2.3  33.6   28.2   2.5848   5.1 ------	UNKNOWN                       
  4.6680  49.3312    2.7  40.7 -157.7   2.9564   4.3 ------	UNKNOWN                       
 36.2143  11.3789    3.0  26.9  -71.2   1.9269   3.9 ------	UNKNOWN                       
 41.9761  42.7199    2.7  44.5 -118.6   8.2210   4.2 ------	UNKNOWN

Plot creation:
Sun May 31 09:22:53 EDT 2015