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201218 (2002 QW56)
Classification: Main-belt Asteroid          SPK-ID: 2201218
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07385241667873484 5.4821e-08  
a 2.857325074727398 2.612e-08 au
q 2.646304712722033 1.6043e-07 au
i 2.911333686135745 5.4497e-06 deg
node 62.01705799217356 0.00010057 deg
peri 334.7528126511212 0.00010563 deg
M 188.3465732550038 3.5507e-05 deg
tp 2459841.677954922941
(2022-Sep-19.17795492)
0.00017982 TDB
period 1764.159734615297
4.83
2.4191e-05
6.623e-08
d
yr
n .2040631542236757 2.7982e-09 deg/d
Q 3.068345436732764 2.8049e-08 au
  Orbit Determination Parameters
   # obs. used (total)      465  
   data-arc span      6470 days (17.71 yr)  
   first obs. used      2002-08-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56878  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 07:03:26  

Additional Information
 Earth MOID = 1.65368 au 
 Jupiter MOID = 2.25347 au 
 T_jup = 3.297 
[ 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 15.7   n/a MPO245371  

201218 (2002 QW56)          Discovered 2002-Aug-29 by Hoenig, S. F. at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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