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117847 (2005 JK139)
Classification: Main-belt Asteroid          SPK-ID: 2117847
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .167009087294781 4.7781e-08  
a 2.469143408730996 1.6606e-08 au
q 2.056774021638908 1.2336e-07 au
i 11.7927577195717 4.7631e-06 deg
node 263.0185714957921 2.2802e-05 deg
peri 313.8836545011206 2.972e-05 deg
M 19.27288452119341 2.0522e-05 deg
tp 2459124.631391760950
(2020-Oct-02.13139176)
8.0627e-05 TDB
period 1417.156779828338
3.88
1.4296e-05
3.914e-08
d
yr
n .2540297623553037 2.5626e-09 deg/d
Q 2.881512795823084 1.9379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      6920 days (18.95 yr)  
   first obs. used      2001-05-18  
   last obs. used      2020-04-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:54:32  

Additional Information
 Earth MOID = 1.06495 au 
 Jupiter MOID = 2.18319 au 
 T_jup = 3.437 
[ 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 15.95   n/a E2021B55  

117847 (2005 JK139)          Discovered 2005-May-13 by Siding Spring Survey at Siding Spring
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2005 JK139 = 2003 YD84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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