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216427 (2008 WT94)
Classification: Main-belt Asteroid          SPK-ID: 2216427
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0943511033566802 8.9355e-08  
a 2.621232642881617 2.8062e-08 au
q 2.37391645087119 2.5261e-07 au
i 21.31341525204889 6.2126e-06 deg
node 279.4884438502519 2.8502e-05 deg
peri 144.9124758642351 9.127e-05 deg
M 315.0792355951619 8.4852e-05 deg
tp 2459393.920016310950
(2021-Jun-28.42001631)
0.000367 TDB
period 1550.089514158901
4.24
2.4892e-05
6.815e-08
d
yr
n .2322446521389062 3.7295e-09 deg/d
Q 2.868548834892044 3.071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      7742 days (21.20 yr)  
   first obs. used      1999-10-14  
   last obs. used      2020-12-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48418  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:46  

Additional Information
 Earth MOID = 1.40923 au 
 Jupiter MOID = 2.38867 au 
 T_jup = 3.302 
[ 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 15.64   n/a E2021B55  

216427 (2008 WT94)          Discovered 2008-Nov-24 by Tozzi, F. at Sierra Stars
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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