batgrbproduct analysis for trigger=103780

batgrbproduct Analysis for Trigger=103780

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): Wed Jan 22 23:11:40 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger103780
======================================================================

  Trigger: 00103780      Segment: 000

  BAT Trigger Time: 128433653.44   [s; MET]
      Trigger Stop: 128433661.632   [s; MET]
               UTC: 2005-01-26T12:00:54.073440    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 278.10963730402   Dec: 42.3890098675932  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12
     Image Trigger?:     NO
     Rate S/N Ratio:     12.8062484748657  [ if not an image trigger ]
     Image S/N Ratio:    12

  Flight Position:   [ source = BAT ]
    RA: 278.10963730402   Dec: 42.3890098675932  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 278.133001642437   Dec: 42.3940656811327  [deg; J2000]  
        { 18h 32m 31.9s , +42d 23' 38.6" }
         +/- 1.625895050218 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.720063313996255 [arcmin] (formal 1-sigma fit error)
    SNR: 15.1899957712221
 
  Angular difference between Flight and Ground position is 1.078875 arcmin
 
  Partial Coding Fraction: 0.421875    [ including projection effects ]

  Duration
     T90: 48 +/- 22.6274169979695
        Measured from: -11.4399999976158
                   to: 36.5600000023842     [s; relative to TRIGTIME]
     T50: 16 +/- 16
        Measured from: 4.56000000238419
                   to: 20.5600000023842     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 12.0600000023842     
                   to: 13.0600000023842     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -11.4399999976158     
                   to: 36.5600000023842     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.239909   0.571178   0.416573   0.103568
           0.045804   0.048169   0.042418   0.035185 [error]
 Peak      0.013804   0.005300   0.017414   0.006280
           0.006629   0.007100   0.006165   0.004816 [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 1.01e-07 2.03e-07 3.18e-07 1.10e-06 8.85e-07 1.72e-06   erg/cm2
              Error 1.79e-08 2.24e-08 3.99e-08 2.95e-07 1.00e-07 3.24e-07   erg/cm2
Peak flux Power-law 7.71e-02 9.59e-02 8.69e-02 1.37e-01 3.07e-01 3.96e-01   ph/cm2/s
              Error 1.02e-01 8.00e-02 6.70e-02 6.47e-01 2.40e-01 5.68e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.88e-08 2.20e-07 3.35e-07 4.03e-07 8.40e-07 1.05e-06   erg/cm2
              Error 2.06e-08 2.79e-08 4.55e-08 -------- 1.09e-07 3.91e-07   erg/cm2
Peak flux Cutoff-PL 8.85e-02 1.01e-01 8.36e-02 1.14e-01 3.15e-01 3.88e-01   ph/cm2/s
              Error 9.86e-02 7.99e-02 6.69e-02 -------- 2.40e-01 --------   ph/cm2/s
 
Fluence        Band 8.80e-08 2.19e-07 3.34e-07 4.03e-07 8.40e-07 1.05e-06   erg/cm2
              Error 1.91e-08 2.75e-08 4.33e-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    1.352    0.169    -      -           1.89e-03 1.94e-04   73.370 57
CPL   0.592    0.720      93.8  128.7      4.55e-03 4.39e-03   69.400 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.156    1.359    -      -           2.64e-03 1.98e-03   66.080 57
CPL   1.184    2.032    10000.0    0.0      2.65e-03 0.00e+00   66.100 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: 16.256000 sec.
T50 in the 50-300 keV band: 9.152000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   48.000  -11.440   36.560
T90    48.000  -11.440   36.560
T50    16.000    4.560   20.560
Peak    1.000   12.060   13.060

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
  278.1330    42.3941   0.0127    30.2098   -77.9318         1.4217865     15.190 TRIG_00103780                 
 
Foreground time interval of the image:
-11.440  36.560 (delta_t =  48.000 [sec])
Background time interval of the image:
-299.440 -11.440 (delta_t = 288.000 [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

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

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  -11.440 sec. to   36.560 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.35229     ( -0.169232   0.168298 )
Norm@50keV  : 1.88907E-03    ( -0.000193957   0.000193757 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.37 using 59 PHA bins.
# Reduced chi-squared =          1.287 for     57 degrees of freedom 
# Null hypothesis probability =   7.108824e-02
 
Photon flux (15-150 keV)    in 48 sec: 0.227686 ( -0.0238208  0.0238632 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.85144e-07 ( -9.95602e-08  1.00368e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -11.440 sec. to   36.560 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.592000     ( -0.779254   0.66026 )
Epeak [keV] : 93.7551      ( -26.1251 231.261 )
Norm@50keV  : 4.54709E-03    ( -0.00238428   0.00639923 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.40 using 59 PHA bins.
# Reduced chi-squared =          1.239 for     56 degrees of freedom 
# Null hypothesis probability =   1.076582e-01
 
Photon flux (15-150 keV)    in 48 sec: 0.221522 ( -0.024396  0.024436 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.40274e-07 ( -1.08466e-07  1.08701e-07 ) ergs/cm2

Band function

Time interval is from  -11.440 sec. to   36.560 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.592201   ( -0.523995   0.848615 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 93.7487      ( -23.1618 232.968 )
Norm@50keV   : 4.54617E-03    ( -0.00238386   0.0064231 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.40 using 59 PHA bins.
# Reduced chi-squared =          1.262 for     55 degrees of freedom 
# Null hypothesis probability =   9.160952e-02
 
Photon flux (15-150 keV)    in 48 sec: 0.222772 ( 6.77723  -0.026113 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.3989e-07 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.0412  (-2.04146  2.38998)
R^2/D10^2   : 2.14929E-02  (-0.00822323   0.0129997)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          84.13 using 59 PHA bins.
# Reduced chi-squared =          1.476 for     57 degrees of freedom 
# Null hypothesis probability =   1.122269e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.486e-08   1.035e-08
25- 50  2.313e-07   3.331e-08
50-150  4.165e-07   8.390e-08
15-150  7.027e-07   9.312e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 0.947279       (-0.0968987     0.0968893)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.59 using 59 PHA bins.
# Reduced chi-squared =          1.309 for     57 degrees of freedom 
# Null hypothesis probability =   5.885499e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.132e-07   6.312e-08
25- 50  2.178e-07   1.184e-07
50-150  4.777e-07   2.610e-07
15-150  8.088e-07   4.291e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.60139        (-2.03203      2.43623)
R1^2/D10^2  : 0.113571        (-0.0597782      0.139836)
kT2 [keV]   : 29.7647        (-8.0286      20.4563)
R2^2/D10^2  : 1.91534E-03    (-0.00153094   0.00401505)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.52 using 59 PHA bins.
# Reduced chi-squared =          1.191 for     55 degrees of freedom 
# Null hypothesis probability =   1.567319e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.937e-08   4.435e-08
25- 50  2.301e-07   1.136e-07
50-150  5.444e-07   2.922e-07
15-150  8.639e-07   4.038e-07

Peak spectrum fit

Power-law model

Time interval is from   12.060 sec. to   13.060 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15602     ( -1.14943   1.56825 )
Norm@50keV  : 2.63713E-03    ( -0.00263425   0.00132485 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.08 using 59 PHA bins.
# Reduced chi-squared =          1.159 for     57 degrees of freedom 
# Null hypothesis probability =   1.918645e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.306873 ( -0.306777  0.172638 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.71688e-08 ( -2.7176e-08  1.49027e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   12.060 sec. to   13.060 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18413     ( -2.59335   1.47056 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 2.65372E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.10 using 59 PHA bins.
# Reduced chi-squared =          1.180 for     56 degrees of freedom 
# Null hypothesis probability =   1.674765e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.314917 ( -0.314917  0.165029 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.55141e-08 ( -1.45853e-08  1.68218e-08 ) ergs/cm2

Band function

Time interval is from   12.060 sec. to   13.060 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.941836   ( 0.940328   0.940328 )
beta        : -1.15115    ( 1.14364   1.14364 )
Epeak [keV] : 49.5405      ( -47.9272 -47.9272 )
Norm@50keV   : 4.57103E-03    ( -0.00454706   27968 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.08 using 59 PHA bins.
# Reduced chi-squared =          1.202 for     55 degrees of freedom 
# Null hypothesis probability =   1.455492e-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]    : 58.6853  (  )
R^2/D10^2   : 6.93865E-04  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.64 using 59 PHA bins.
# Reduced chi-squared =          1.187 for     57 degrees of freedom 
# Null hypothesis probability =   1.581852e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.829e-09   3.111e-09
25- 50  4.373e-09   2.959e-09
50-150  3.338e-10   3.818e-10
15-150  9.535e-09   7.025e-09

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-199.363      -199.363)
Norm        : 1.28543       (-0.664041     0.664059)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.01 using 59 PHA bins.
# Reduced chi-squared =          1.176 for     57 degrees of freedom 
# Null hypothesis probability =   1.712374e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.201e-09   2.147e-09
25- 50  6.157e-09   4.248e-09
50-150  1.350e-08   9.240e-09
15-150  2.286e-08   1.582e-08

Double BB

------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.09610        (-1.89462      2.70722)
R1^2/D10^2  : 1.80690        (-1.63339      265.967)
kT2 [keV]   : 119.154        (-65.7619      -94.53)
R2^2/D10^2  : 1.76898E-04    (   )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.85 using 59 PHA bins.
#Fit statistic : Chi-Squared =          61.82 using 59 PHA bins.
# Reduced chi-squared =          1.125 for     55 degrees of freedom 
# Reduced chi-squared =          1.124 for     55 degrees of freedom 
# Null hypothesis probability =   2.447983e-01
# Null hypothesis probability =   2.456949e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.748e-09   2.990e-09
25- 50  4.376e-09   2.796e-09
50-150  2.307e-08   1.443e-08
15-150  3.219e-08   1.754e-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: 1.35229     ( -0.169232   0.168298 )
Norm@50keV  : 1.88907E-03    ( -0.000193957   0.000193757 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.37 using 59 PHA bins.
# Reduced chi-squared =          1.287 for     57 degrees of freedom 
# Null hypothesis probability =   7.108824e-02
 
Photon flux (15-150 keV)    in 48 sec: 0.227686 ( -0.0238208  0.0238632 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.85144e-07 ( -9.95602e-08  1.00368e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.592000     ( -0.779254   0.66026 )
Epeak [keV] : 93.7551      ( -26.1251 231.261 )
Norm@50keV  : 4.54709E-03    ( -0.00238428   0.00639923 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.40 using 59 PHA bins.
# Reduced chi-squared =          1.239 for     56 degrees of freedom 
# Null hypothesis probability =   1.076582e-01
 
Photon flux (15-150 keV)    in 48 sec: 0.221522 ( -0.024396  0.024436 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.40274e-07 ( -1.08466e-07  1.08701e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.592201   ( -0.523995   0.848615 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 93.7487      ( -23.1617 233.112 )
Norm@50keV   : 4.54617E-03    ( -0.00238386   0.0064231 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.40 using 59 PHA bins.
# Reduced chi-squared =          1.262 for     55 degrees of freedom 
# Null hypothesis probability =   9.160952e-02
 
Photon flux (15-150 keV)    in 48 sec: 0.222772 ( 6.77723  -0.026113 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.3989e-07 ( 0  0 ) ergs/cm2

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

S(25-50 keV)  = 2.03e-07
S(50-100 keV) = 3.18e-07

T90 vs. Hardness ratio plot

T90                                   = 48 sec.
Hardness ratio (energy fluence ratio) = 1.5665

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 2.38081
Count Ratio (50-100 keV) / (15-25 keV) = 1.73638

Mask shadow pattern

IMX = 1.217331865104005E-01, IMY = 5.693753405969912E-01

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

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:
-299.440000 -11.440000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.3780  35.4910    4.1  30.9  -38.8   0.5514   2.8    9.7	Her X-1                       
177.6491  44.5581    4.3  40.5   70.7   1.7158   2.7 ------	UNKNOWN                       
190.5708  33.7167    2.6  44.6   49.7   2.7855   4.5 ------	UNKNOWN                       
232.0837  65.9047    2.2   4.6   76.3   0.7775   5.3 ------	UNKNOWN                       
 22.1461  51.7034    2.6  58.4 -172.5   4.6408   4.5 ------	UNKNOWN

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

Time interval of the image:
-11.440000 36.560000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.6115  35.4393    9.2  31.0  -39.1  -0.0965  -1.2    9.5	Her X-1                       
226.7240  20.7672    2.6  46.2    0.6   0.5295   4.4 ------	UNKNOWN                       
245.7370  38.8535    2.6  26.9  -25.2   0.2690   4.4 ------	UNKNOWN                       
278.1330  42.3941    0.8  30.2  -77.9   1.4216  15.2 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
98.460600 302.602800
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.7055  35.3538    0.0  19.4   18.4  -0.3432  -2.7   12.2	Her X-1                       
268.5102  -1.5277    8.1  44.8  -44.5   0.5753   1.4    9.6	SW J1753.5-0127               
288.7718  10.9624    6.6  32.8  -77.8  -0.4249  -1.7    1.9	GRS 1915+105                  
299.5971  35.1983    0.3  18.2 -131.9   4.9651  34.6    0.4	Cyg X-1                       
308.1291  40.9657    1.3  22.4 -154.6   1.1712   8.8    1.2	Cyg X-3                       
326.2670  38.3045    7.8  36.5 -158.3   0.2926   1.5    4.6	Cyg X-2                       
219.5311  68.0512    2.3  39.7   91.9   2.8405   5.1 ------	UNKNOWN                       
303.6187   8.0069    4.0  41.1  -98.6   2.1060   2.9 ------	UNKNOWN

Plot creation:
Sun May 31 17:40:40 EDT 2015