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227465 (2005 WR120)
Classification: Main-belt Asteroid          SPK-ID: 2227465
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1476073649896012 5.8216e-08  
a 2.620641008993296 1.9044e-08 au
q 2.233815095072106 1.5025e-07 au
i 17.81181186972915 5.4501e-06 deg
node 82.94309575383257 3.2269e-05 deg
peri 40.7574412201644 5.1976e-05 deg
M 179.4819481625106 3.6916e-05 deg
tp 2458427.947503747859
(2018-Nov-05.44750375)
0.00015861 TDB
period 1549.564741736312
4.24
1.6891e-05
4.625e-08
d
yr
n .2323233036372615 2.5325e-09 deg/d
Q 3.007466922914486 2.1855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      9665 days (26.46 yr)  
   first obs. used      1992-12-16  
   last obs. used      2019-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63822  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:52  

Additional Information
 Earth MOID = 1.27555 au 
 Jupiter MOID = 2.22873 au 
 T_jup = 3.322 
[ 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 15.8   n/a MPO475861  

227465 (2005 WR120)          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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