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227452 (2005 WN73)
Classification: Main-belt Asteroid          SPK-ID: 2227452
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03464155454264926 4.4806e-08  
a 2.573029876981365 2.4175e-08 au
q 2.483896122158049 1.1595e-07 au
i 4.694242070340989 5.3473e-06 deg
node 66.70316175359744 5.9115e-05 deg
peri 203.5035641121445 0.00011629 deg
M 25.69319271182254 9.7061e-05 deg
tp 2459092.907686981947
(2020-Aug-31.40768698)		 0.00040734 TDB
period 1507.528983296659
4.13		 2.1246e-05
5.817e-08		 d
yr
n .2388013789378385 3.3655e-09 deg/d
Q 2.662163631804681 2.5013e-08 au
   Orbit Determination Parameters
   # obs. used (total)      415  
   data-arc span      6810 days (18.64 yr)  
   first obs. used      2001-11-21  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60088  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:26:45  

Additional Information
 Earth MOID = 1.46688 au 
 Jupiter MOID = 2.34977 au 
 T_jup = 3.423 
[ 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 16.31   n/a E2021B55  

227452 (2005 WN73)          Discovered 2005-Nov-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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Alternate Designations
 2005 WN73 = 2007 EW164 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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