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173945 (2001 WY65)
Classification: Main-belt Asteroid          SPK-ID: 2173945
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04016315954700897 7.3193e-08  
a 3.045444650202412 3.0472e-08 au
q 2.923129970824748 2.2485e-07 au
i 1.150449512437932 7.0298e-06 deg
node 293.0443400369775 0.00039828 deg
peri 209.0658352973184 0.00041539 deg
M 96.88378828366322 0.00011471 deg
tp 2458478.076019088117
(2018-Dec-25.57601909)
0.00061815 TDB
period 1941.218819578209
5.31
2.9135e-05
7.977e-08
d
yr
n .1854504996393046 2.7834e-09 deg/d
Q 3.167759329580076 3.1696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      6340 days (17.36 yr)  
   first obs. used      2001-11-20  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67517  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:50:42  

Additional Information
 Earth MOID = 1.9356 au 
 Jupiter MOID = 1.82551 au 
 T_jup = 3.237 
[ 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 16.1   n/a MPO280925  
diameter diameter 4.771 km 1.566 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173945 (2001 WY65)          Discovered 2001-Nov-20 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 WY65 = 2005 NG46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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