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227464 (2005 WK120)
Classification: Main-belt Asteroid          SPK-ID: 2227464
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 .1598143111541649 5.7983e-08  
a 2.61913820602286 2.4175e-08 au
q 2.200562437809761 1.634e-07 au
i 1.087386536110917 6.2571e-06 deg
node 174.5901745347433 0.00028119 deg
peri 202.0940216384138 0.00028197 deg
M 232.8510332205939 2.586e-05 deg
tp 2459747.322511440642
(2022-Jun-16.82251144)
0.00011667 TDB
period 1548.232039196683
4.24
2.1436e-05
5.869e-08
d
yr
n .2325232851961842 3.2194e-09 deg/d
Q 3.037713974235958 2.8039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      7679 days (21.02 yr)  
   first obs. used      1999-04-18  
   last obs. used      2020-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:52  

Additional Information
 Earth MOID = 1.20067 au 
 Jupiter MOID = 2.4258 au 
 T_jup = 3.387 
[ 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 16.64   n/a E2021B55  

227464 (2005 WK120)          Discovered 2005-Nov-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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