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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703643522777405 6.3728e-08  
a 2.880823859544844 3.2361e-08 au
q 2.390034168687226 1.7069e-07 au
i 13.47376346658264 1.0879e-05 deg
node 51.10585369298243 2.1974e-05 deg
peri 249.5038231237914 4.3859e-05 deg
M 126.1693910989632 3.9779e-05 deg
tp 2458770.571118477595
(2019-Oct-14.07111848)
0.00019191 TDB
period 1785.967225373394
4.89
3.0094e-05
8.239e-08
d
yr
n .201571448168504 3.3965e-09 deg/d
Q 3.371613550402462 3.7875e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      6100 days (16.70 yr)  
   first obs. used      2004-04-25  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:07:34  

Additional Information
 Earth MOID = 1.41377 au 
 Jupiter MOID = 1.94281 au 
 T_jup = 3.232 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457968.5 (2017-Aug-03.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714844319562399 6.3304e-08  
q 2.385426763980525 1.6935e-07 au
tp 2458771.929594255953
(2019-Oct-15.42959426)
0.00019118 TDB
node 51.12699457237428 2.1956e-05 deg
peri 249.8634246440664 4.3812e-05 deg
i 13.48358170427536 1.0889e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      6100 days (16.70 yr)  
   first obs. used      2004-04-25  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:07:34  

Additional Information
 Jupiter MOID = 1.94281 au 
 T_jup = 3.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.007375457777541E-15 -1.062699683950746E-14 3.061332320871059E-12 -1.792455645801826E-14 2.097197225682812E-13 4.958879742794865E-15
q -1.062699683950746E-14 2.868063054955231E-14 -6.399543923556684E-12 4.045117871004279E-14 -2.500481960212857E-13 -1.270740052536324E-14
tp 3.061332320871059E-12 -6.399543923556684E-12 3.655149632131478E-8 -1.403941177054558E-10 7.163900356488629E-9 -2.654974609523206E-11
node -1.792455645801826E-14 4.045117871004279E-14 -1.403941177054558E-10 4.820589529135902E-10 -4.942879506825146E-10 -1.289330260797359E-10
peri 2.097197225682812E-13 -2.500481960212857E-13 7.163900356488629E-9 -4.942879506825146E-10 1.919491227550643E-9 1.192674264071362E-10
i 4.958879742794865E-15 -1.270740052536324E-14 -2.654974609523206E-11 -1.289330260797359E-10 1.192674264071362E-10 1.185747267570778E-10

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 16.21   n/a E2021B55  

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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