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20043 Ellenmacarthur (1993 EM)
Classification: Inner Main-belt Asteroid          SPK-ID: 2020043
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05749849122754764 7.7664e-08  
a 1.969340425125312 1.2726e-08 au
q 1.856106321967189 1.5155e-07 au
i 18.2620601533395 7.003e-06 deg
node 264.4759490836349 2.6229e-05 deg
peri 286.2994444596681 7.2601e-05 deg
M 169.3382855015458 6.7061e-05 deg
tp 2457125.676419855595
(2015-Apr-13.17641986)
0.00018888 JED
period 1009.437932749269
2.76
9.7845e-06
2.679e-08
d
yr
n .3566341112420027 3.4569e-09 deg/d
Q 2.082574528283435 1.3458e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      8105 days (22.19 yr)  
   first obs. used      1993-03-02  
   last obs. used      2015-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62117  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:35:55  

Additional Information
 Earth MOID = .897179 au 
 Jupiter MOID = 3.01089 au 
 T_jup = 3.809 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO267782  
SMASSII spectral type spec_B U   n/a Binzel et al. (2001) Icarus 151, 139-149  

20043 Ellenmacarthur           Discovered 1993 Mar. 2 by R. H. McNaught at Siding Spring.
British yachtswoman Ellen MacArthur (b. 1976) finished second in the Vendee Globe round-the-world race in 2000-2001, the youngest competitor ever to complete the course. On 2005 Feb. 7, with a time of 71.8 days, she broke by 1.1 days the previous record for the fastest single-handed non-stop circumnavigation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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