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186213 (2001 WA43)
Classification: Main-belt Asteroid          SPK-ID: 2186213
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345946159651692 7.8094e-08  
a 2.626115539493864 1.7873e-08 au
q 2.272654526975524 2.0498e-07 au
i 9.466765263452865 7.1104e-06 deg
node 53.90360634054005 2.6274e-05 deg
peri 354.7690562062452 3.5845e-05 deg
M 162.7399916001049 2.0228e-05 deg
tp 2458497.814552175693
(2019-Jan-14.31455218)
8.6504e-05 TDB
period 1554.422847939899
4.26
1.5869e-05
4.345e-08
d
yr
n .2315972133818758 2.3644e-09 deg/d
Q 2.979576552012204 2.0279e-08 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      9153 days (25.06 yr)  
   first obs. used      1995-04-28  
   last obs. used      2020-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54648  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:50:22  

Additional Information
 Earth MOID = 1.28231 au 
 Jupiter MOID = 2.39745 au 
 T_jup = 3.370 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.36   n/a E2021B55  

186213 (2001 WA43)          Discovered 2001-Nov-18 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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