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541720 (2011 WW68)
Classification: Main-belt Asteroid          SPK-ID: 2541720
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2414647195358031 1.5606e-07  
a 2.543092380669828 2.4162e-08 au
q 1.92902529221775 4.0728e-07 au
i 5.015335713709133 9.3468e-06 deg
node 49.00916880113059 4.5086e-05 deg
peri 338.3960448333678 4.7475e-05 deg
M 109.8566484667954 1.1218e-05 deg
tp 2458748.471855018121
(2019-Sep-21.97185502)
4.6718e-05 TDB
period 1481.295255813874
4.06
2.1111e-05
5.78e-08
d
yr
n .2430305495052731 3.4635e-09 deg/d
Q 3.157159469121905 2.9996e-08 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      4879 days (13.36 yr)  
   first obs. used      2007-12-06  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:31  

Additional Information
 Earth MOID = .933747 au 
 Jupiter MOID = 2.29394 au 
 T_jup = 3.398 
[ 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 17.37   n/a MPCxxxxx  

541720 (2011 WW68)          Discovered 2011-Nov-26 by PMO NEO Survey Program at XuYi
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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