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390394 (2013 WC98)
Classification: Main-belt Asteroid          SPK-ID: 2390394
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714885215812863 8.8805e-08  
a 2.630638174170244 2.1534e-08 au
q 2.179513922866494 2.3553e-07 au
i 4.657852759142448 6.8461e-06 deg
node 277.4893868631787 0.00010758 deg
peri 112.0044307939336 0.00010848 deg
M 219.0828067676378 1.5325e-05 deg
tp 2459610.530553858978
(2022-Jan-31.03055386)
6.9832e-05 TDB
period 1558.440062222282
4.27
1.9136e-05
5.239e-08
d
yr
n .2310002217773151 2.8364e-09 deg/d
Q 3.081762425473993 2.5227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      5764 days (15.78 yr)  
   first obs. used      2004-09-12  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:41:18  

Additional Information
 Earth MOID = 1.19006 au 
 Jupiter MOID = 2.38294 au 
 T_jup = 3.374 
[ 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 16.8   n/a MPO335042  

390394 (2013 WC98)          Discovered 2004-Sep-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

Alternate Designations
 2013 WC98 = 2004 RS204 = 2008 OR18 = 2009 XC16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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