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46635 (1994 WK2)
Classification: Main-belt Asteroid          SPK-ID: 2046635
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2253528801833617 1.7994e-08  
a 2.731838950828076 1.1167e-08 au
q 2.116211175061876 5.0543e-08 au
i 9.798874432179714 8.1424e-07 deg
node 104.4836552366074 2.1917e-06 deg
peri 38.07963206475087 4.0612e-06 deg
M 221.1373380226438 6.0122e-06 deg
tp 2459836.656621431821
(2022-Sep-14.15662143)
3.0243e-05 TDB
period 1649.229392943657
4.52
1.0112e-05
2.769e-08
d
yr
n .2182837642478876 1.3384e-09 deg/d
Q 3.347466726594276 1.3683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1666  
   data-arc span      14204 days (38.89 yr)  
   first obs. used      1982-02-20  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48378  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:50:57  

Additional Information
 Earth MOID = 1.13892 au 
 Jupiter MOID = 1.72799 au 
 T_jup = 3.296 
[ 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 13.59   n/a E2021B10  
diameter diameter 7.907 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46635 (1994 WK2)          Discovered 1994-Nov-28 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 WK2 = 1982 DY = 1999 XP136 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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