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279117 (2009 KJ7)
Classification: Main-belt Asteroid          SPK-ID: 2279117
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705630178835888 6.3709e-08  
a 2.87994497502323 3.5695e-08 au
q 2.388732868744591 1.7097e-07 au
i 13.47613342377159 1.1122e-05 deg
node 51.10617128388898 2.6474e-05 deg
peri 249.3943028775249 4.6871e-05 deg
M 46.42031046311846 3.948e-05 deg
tp 2458770.313286676472
(2019-Oct-13.81328668)
0.0001936 TDB
period 1785.149990806482
4.89
3.3189e-05
9.087e-08
d
yr
n .2016637267759007 3.7492e-09 deg/d
Q 3.371157081301869 4.1783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      6017 days (16.47 yr)  
   first obs. used      2004-04-25  
   last obs. used      2020-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51369  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 21:07:08  

Additional Information
 Earth MOID = 1.41278 au 
 Jupiter MOID = 1.94466 au 
 T_jup = 3.233 
[ 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 16.0   n/a MPO437268  

279117 (2009 KJ7)          Discovered 2009-May-26 by Lowe, A. at Mayhill
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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