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160239 (2002 JR118)
Classification: Main-belt Asteroid          SPK-ID: 2160239
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2723736396527077 4.4632e-08  
a 2.670197104906014 1.1882e-08 au
q 1.942905800852641 1.1794e-07 au
i 13.04373213202015 5.4354e-06 deg
node 150.2845159231861 1.7838e-05 deg
peri 137.2089536650707 2.2376e-05 deg
M 359.51369651372 8.8283e-06 deg
tp 2459002.652872400261
(2020-Jun-02.15287240)
3.9081e-05 TDB
period 1593.725083122106
4.36
1.0638e-05
2.913e-08
d
yr
n .2258858844680793 1.5077e-09 deg/d
Q 3.397488408959389 1.5118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      8078 days (22.12 yr)  
   first obs. used      1998-06-19  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58332  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 12:18:34  

Additional Information
 Earth MOID = .948425 au 
 Jupiter MOID = 1.93421 au 
 T_jup = 3.292 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457417.5 (2016-Jan-30.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2712002820435423 4.4664e-08  
q 1.946002288670474 1.1786e-07 au
tp 2457409.460353533988
(2016-Jan-21.96035353)
4.2692e-05 TDB
node 150.3162330114876 1.7843e-05 deg
peri 137.2359479907965 2.2416e-05 deg
i 13.03986250763097 5.4335e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      8078 days (22.12 yr)  
   first obs. used      1998-06-19  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58332  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 12:18:34  

Additional Information
 Jupiter MOID = 1.93421 au 
 T_jup = 3.292 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.994901460425937E-15 -5.250465156432959E-15 6.286959931786399E-13 -5.669598842404027E-14 2.512427733796721E-13 -1.486794636078788E-14
q -5.250465156432959E-15 1.389213539962126E-14 -1.834457771998281E-12 1.518031617165826E-13 -7.137581573179692E-13 3.874888375171041E-14
tp 6.286959931786399E-13 -1.834457771998281E-12 1.822617248087957E-9 -4.152380027254404E-11 5.932049784091768E-10 -5.427683005387866E-12
node -5.669598842404027E-14 1.518031617165826E-13 -4.152380027254404E-11 3.183566411733197E-10 -3.21390828862421E-10 -1.739119353452113E-11
peri 2.512427733796721E-13 -7.137581573179692E-13 5.932049784091768E-10 -3.21390828862421E-10 5.02491566803118E-10 1.550609715028158E-11
i -1.486794636078788E-14 3.874888375171041E-14 -5.427683005387866E-12 -1.739119353452113E-11 1.550609715028158E-11 2.952290827647277E-11

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 15.8   n/a MPO469693  

160239 (2002 JR118)          Discovered 2002-May-05 by LONEOS at Anderson Mesa
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

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Alternate Designations
 2002 JR118 = 1998 MR11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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