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216838 (2006 WD140)
Classification: Main-belt Asteroid          SPK-ID: 2216838
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .043862732238248 6.2683e-08  
a 3.173717203822372 3.7846e-08 au
q 3.03450929591119 1.9399e-07 au
i 4.017699525389952 6.1682e-06 deg
node 80.13386726624525 8.7441e-05 deg
peri 352.4008393920623 0.00011262 deg
M 179.2782595258259 7.2466e-05 deg
tp 2458172.067263320409
(2018-Feb-22.56726332)
0.00040964 TDB
period 2065.146025981574
5.65
3.6939e-05
1.011e-07
d
yr
n .1743218133104608 3.1181e-09 deg/d
Q 3.312925111733554 3.9506e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      6677 days (18.28 yr)  
   first obs. used      2002-02-06  
   last obs. used      2020-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5089  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:28  

Additional Information
 Earth MOID = 2.0487 au 
 Jupiter MOID = 1.82632 au 
 T_jup = 3.196 
[ 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 16.07   n/a E2021B55  

216838 (2006 WD140)          Discovered 2006-Nov-19 by Spacewatch at Kitt Peak
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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