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243372 (2008 WN128)
Classification: Main-belt Asteroid          SPK-ID: 2243372
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1463796749763942 7.2076e-08  
a 2.438281591485822 1.9584e-08 au
q 2.081366724623202 1.8017e-07 au
i 1.733515777512875 5.2854e-06 deg
node 279.351139540889 0.00023159 deg
peri 213.6226837360874 0.00023253 deg
M 323.0520615313507 2.0332e-05 deg
tp 2459143.228902901686
(2020-Oct-20.72890290)
7.8984e-05 TDB
period 1390.670418275311
3.81
1.6754e-05
4.587e-08
d
yr
n .2588679497809889 3.1188e-09 deg/d
Q 2.795196458348442 2.245e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      8000 days (21.90 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:20:01  

Additional Information
 Earth MOID = 1.09599 au 
 Jupiter MOID = 2.24566 au 
 T_jup = 3.488 
[ 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 17.2   n/a MPO494332  

243372 (2008 WN128)          Discovered 2008-Nov-22 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2008 WN128 = 2006 KE109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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