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212819 (2007 UJ2)
Classification: Main-belt Asteroid          SPK-ID: 2212819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2019526595358837 4.1706e-08  
a 2.348666256923999 1.2327e-08 au
q 1.874346859976008 9.6148e-08 au
i 8.969087597457744 4.7523e-06 deg
node 152.4432687868091 2.8864e-05 deg
peri 249.8323591041711 3.0856e-05 deg
M 168.4936475307692 1.1484e-05 deg
tp 2458385.165280101623
(2018-Sep-23.66528010)
4.0252e-05 TDB
period 1314.711280868694
3.60
1.0351e-05
2.834e-08
d
yr
n .2738243789633648 2.1558e-09 deg/d
Q 2.82298565387199 1.4817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      8649 days (23.68 yr)  
   first obs. used      1996-09-15  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58349  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:58:37  

Additional Information
 Earth MOID = .903875 au 
 Jupiter MOID = 2.63915 au 
 T_jup = 3.515 
[ 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 16.9   n/a MPO418139  

212819 (2007 UJ2)          Discovered 2007-Oct-18 by Lowe, A. at Mayhill
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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