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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705630173019672 6.3713e-08  
a 2.879944998846967 4.3295e-08 au
q 2.388732890179918 1.7232e-07 au
i 13.47613338944993 1.1171e-05 deg
node 51.10616956253154 2.9213e-05 deg
peri 249.3943076517294 4.8267e-05 deg
M 46.42030072556222 4.0727e-05 deg
tp 2458770.313332106323
(2019-Oct-13.81333211)
0.00019915 TDB
period 1785.150012957397
4.89
4.0255e-05
1.102e-07
d
yr
n .2016637242735697 4.5475e-09 deg/d
Q 3.371157107514017 5.068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      5993 days (16.41 yr)  
   first obs. used      2004-04-25  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 22:51:54  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1977-May-22 12:42 00:03 Jupiter 1.93479531348238 1.93479432601831 1.93479630094689 3.91396447166486 3.80046705002458 2443286.028971604 2.53452920876696 185.745184702544 34.6375606199162 -83.2916081698392 1117818.32618079 T 11 CATAB v2.0f-lin.ifort 2020-Oct-22 22:52:06 2020-Oct-22 22:52
2060-Sep-01 00:46 00:03 Jupiter 1.93837303571199 1.93837207036146 1.93837400106416 3.62352087745356 3.50085011512135 2473703.531964305 2.98526221848854 234.732679978168 28.9314639939684 -82.4961386709483 1089248.95757902 T 11 CATAB v2.0f-lin.ifort 2020-Oct-22 22:52:06 2020-Oct-22 22:52
2143-Dec-17 23:28 00:09 Jupiter 1.96262879340627 1.96262737415132 1.96263021270479 3.28250247990785 3.14828072404187 2504125.477483948 8.72892073020951 592.892841506671 21.2232444375468 -78.9978570241834 965589.705061433 T 11 CATAB v2.0f-lin.ifort 2020-Oct-22 22:52:06 2020-Oct-22 22:52
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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