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213938 (2003 WS55)
Classification: Main-belt Asteroid          SPK-ID: 2213938
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1457817747809614 9.0123e-08  
a 2.534944974804698 1.2303e-08 au
q 2.16539619740559 2.311e-07 au
i 3.207123011340812 6.8929e-06 deg
node 5.10850661588348 8.4362e-05 deg
peri 65.48493254246458 9.0809e-05 deg
M 77.02394928828581 3.0092e-05 deg
tp 2458885.090686038130
(2020-Feb-05.59068604)
0.00012242 TDB
period 1474.182433846484
4.04
1.0732e-05
2.938e-08
d
yr
n .2442031540565007 1.7779e-09 deg/d
Q 2.904493752203806 1.4097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      7788 days (21.32 yr)  
   first obs. used      2000-01-03  
   last obs. used      2021-04-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53343  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:39:43  

Additional Information
 Earth MOID = 1.18157 au 
 Jupiter MOID = 2.36992 au 
 T_jup = 3.432 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.46   n/a MPCxxxxx  

213938 (2003 WS55)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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