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392252 (2009 WC203)
Classification: Main-belt Asteroid          SPK-ID: 2392252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1206570846623492 7.471e-08  
a 2.308936937997324 3.3532e-08 au
q 2.030347338389356 1.8819e-07 au
i 4.302217574459827 8.9257e-06 deg
node 227.538371785207 0.00010818 deg
peri 234.3368070780114 0.0001217 deg
M 328.9788079512635 5.1596e-05 deg
tp 2459110.926298762717
(2020-Sep-18.42629876)
0.00018456 TDB
period 1281.493873353496
3.51
2.7917e-05
7.643e-08
d
yr
n .2809221389860638 6.1197e-09 deg/d
Q 2.587526537605292 3.7578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      6167 days (16.88 yr)  
   first obs. used      2002-11-07  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62375  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:03:56  

Additional Information
 Earth MOID = 1.0507 au 
 Jupiter MOID = 2.54943 au 
 T_jup = 3.572 
[ 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 17.9   n/a MPO418999  

392252 (2009 WC203)          Discovered 2009-Nov-08 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

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