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227473 (2005 WO166)
Classification: Main-belt Asteroid          SPK-ID: 2227473
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2419463315614985 4.4415e-08  
a 2.636338369562775 1.8976e-08 au
q 1.998485972292239 1.1511e-07 au
i 1.856086680090617 5.2375e-06 deg
node 252.3849286760832 0.0002552 deg
peri 185.7920974573868 0.00025585 deg
M 191.5580299942818 2.1566e-05 deg
tp 2459932.056652277517
(2022-Dec-18.55665228)
9.918e-05 TDB
period 1563.50816136243
4.28
1.688e-05
4.621e-08
d
yr
n .2302514364148241 2.4859e-09 deg/d
Q 3.27419076683331 2.3567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      246  
   data-arc span      7232 days (19.80 yr)  
   first obs. used      2000-09-03  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47603  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:54  

Additional Information
 Earth MOID = 1.01358 au 
 Jupiter MOID = 1.99718 au 
 T_jup = 3.354 
[ 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 17.25   n/a E2021B55  
diameter diameter 2.336 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227473 (2005 WO166)          Discovered 2005-Nov-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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