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266906 (2009 WN193)
Classification: Main-belt Asteroid          SPK-ID: 2266906
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03238748004411955 4.364e-08  
a 2.728171104641662 2.2724e-08 au
q 2.639812517433137 1.2503e-07 au
i 3.055198259919281 5.1492e-06 deg
node 42.66671220202631 0.00010797 deg
peri 214.2564596272379 0.00014436 deg
M 277.1164288289162 9.6529e-05 deg
tp 2459379.441167102530
(2021-Jun-13.94116710)
0.00044147 TDB
period 1645.909053258849
4.51
2.0564e-05
5.63e-08
d
yr
n .2187241143653783 2.7327e-09 deg/d
Q 2.816529691850187 2.346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      8953 days (24.51 yr)  
   first obs. used      1995-09-19  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56115  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:22:46  

Additional Information
 Earth MOID = 1.62551 au 
 Jupiter MOID = 2.17805 au 
 T_jup = 3.353 
[ 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 16.3   n/a MPO423026  
diameter diameter 3.267 km 0.473 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266906 (2009 WN193)          Discovered 2009-Nov-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 WN193 = 1995 SR60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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