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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2723736372294787 4.5167e-08  
a 2.670197106307313 1.325e-08 au
q 1.942905808342761 1.201e-07 au
i 13.04373119361699 5.7858e-06 deg
node 150.2845108766712 2.2071e-05 deg
peri 137.2089588968773 2.5695e-05 deg
M 359.5136955273666 9.901e-06 deg
tp 2459002.652876768557
(2020-Jun-02.15287677)
4.3833e-05 TDB
period 1593.725084376667
4.36
1.1862e-05
3.248e-08
d
yr
n .2258858842902645 1.6813e-09 deg/d
Q 3.397488404271865 1.6859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      391  
   data-arc span      8032 days (21.99 yr)  
   first obs. used      1998-06-19  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62366  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:07:35  

Additional Information
 Earth MOID = .948425 au 
 Jupiter MOID = 1.93421 au 
 T_jup = 3.292 
[ 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 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

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