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226566 (2003 WF85)
Classification: Main-belt Asteroid          SPK-ID: 2226566
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .103198381438803 6.243e-08  
a 3.198655044384282 3.6852e-08 au
q 2.868559021022762 1.9853e-07 au
i 8.161840999566415 5.7868e-06 deg
node 228.1376355690892 5.0099e-05 deg
peri 288.5046040996801 5.7221e-05 deg
M 220.0308792869292 2.9515e-05 deg
tp 2459812.917500964807
(2022-Aug-21.41750096)
0.00017677 TDB
period 2089.534454866505
5.72
3.6111e-05
9.887e-08
d
yr
n .1722871806021497 2.9774e-09 deg/d
Q 3.528751067745803 4.0655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      6206 days (16.99 yr)  
   first obs. used      2002-10-05  
   last obs. used      2019-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64459  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:54:22  

Additional Information
 Earth MOID = 1.891 au 
 Jupiter MOID = 1.55752 au 
 T_jup = 3.171 
[ 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 15.2   n/a MPO454627  
diameter diameter 5.308 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226566 (2003 WF85)          Discovered 2003-Nov-20 by Spacewatch at Kitt Peak
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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