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344355 (2001 WK81)
Classification: Main-belt Asteroid          SPK-ID: 2344355
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1963495717503927 4.9815e-08  
a 2.369370273678968 1.0636e-08 au
q 1.904145435123992 1.1984e-07 au
i 1.585325791106123 5.4745e-06 deg
node 164.991018103614 0.00015324 deg
peri 212.4226030904812 0.00015398 deg
M 113.6307392053681 1.1713e-05 deg
tp 2458780.024049281617
(2019-Oct-23.52404928)
4.3359e-05 TDB
period 1332.133745825943
3.65
8.9699e-06
2.456e-08
d
yr
n .2702431352167229 1.8197e-09 deg/d
Q 2.834595112233945 1.2724e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      7082 days (19.39 yr)  
   first obs. used      2001-10-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58163  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:32:03  

Additional Information
 Earth MOID = .904652 au 
 Jupiter MOID = 2.62807 au 
 T_jup = 3.519 
[ 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 17.4   n/a MPO494802  

344355 (2001 WK81)          Discovered 2001-Nov-20 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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