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344555 (2002 WN22)
Classification: Main-belt Asteroid          SPK-ID: 2344555
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09876388399463444 5.2347e-08  
a 2.259294718383103 1.5713e-08 au
q 2.036157996907024 1.1986e-07 au
i 3.501499247980463 5.8085e-06 deg
node 104.8784618560663 9.5132e-05 deg
peri 80.750081024773 0.00010029 deg
M 302.90242552962 3.5159e-05 deg
tp 2459197.231052908952
(2020-Dec-13.73105291)		 0.0001221 TDB
period 1240.388575244347
3.40		 1.294e-05
3.543e-08		 d
yr
n .2902316315909978 3.0279e-09 deg/d
Q 2.482431439859182 1.7265e-08 au
   Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      8834 days (24.19 yr)  
   first obs. used      1995-11-15  
   last obs. used      2020-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60615  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:04:20  

Additional Information
 Earth MOID = 1.04114 au 
 Jupiter MOID = 2.47683 au 
 T_jup = 3.612 
[ 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 17.6   n/a MPO455508  
diameter diameter 1.873 km 0.559 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

344555 (2002 WN22)          Discovered 2006-Dec-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2002 WN22 = 2010 EU52 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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