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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962392074259381 5.0546e-08  
a 2.369295962680222 1.1177e-08 au
q 1.904347200806381 1.2202e-07 au
i 1.585172982117388 5.4924e-06 deg
node 164.9964114791079 0.00016245 deg
peri 212.4120232731284 0.00016343 deg
M 59.59950000564074 1.3278e-05 deg
tp 2458779.970082988066
(2019-Oct-23.47008299)
4.939e-05 TDB
period 1332.071076381218
3.65
9.4261e-06
2.581e-08
d
yr
n .2702558492434181 1.9124e-09 deg/d
Q 2.834244724554064 1.3371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      6611 days (18.10 yr)  
   first obs. used      2001-10-24  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57088  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:03:01  

Additional Information
 Earth MOID = .906246 au 
 Jupiter MOID = 2.62727 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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