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186221 (2001 WC79)
Classification: Main-belt Asteroid          SPK-ID: 2186221
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01501480523033528 4.103e-08  
a 2.775441258013896 2.4394e-08 au
q 2.733768548096581 1.2089e-07 au
i 3.177954630625319 5.4496e-06 deg
node 59.26587001105028 0.00010656 deg
peri 33.66679370299942 0.00025256 deg
M 12.87664071974889 0.00022755 deg
tp 2459140.091706915075
(2020-Oct-17.59170692)
0.0010676 TDB
period 1688.871032739114
4.62
2.2266e-05
6.096e-08
d
yr
n .2131601484194622 2.8103e-09 deg/d
Q 2.817113967931212 2.4761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      7558 days (20.69 yr)  
   first obs. used      2000-07-01  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53695  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:50:23  

Additional Information
 Earth MOID = 1.75045 au 
 Jupiter MOID = 2.18389 au 
 T_jup = 3.333 
[ 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 16.49   n/a MPCxxxxx  

186221 (2001 WC79)          Discovered 2001-Nov-20 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2001 WC79 = 2005 RK41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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