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(2009 JR2)
Classification: Amor [NEO]          SPK-ID: 3459812
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1790124753155492 1.3053e-07  
a 1.249982210089563 3.7502e-09 au
q 1.026219800561029 1.6294e-07 au
i 19.73526781705038 5.7322e-05 deg
node 52.89486452396036 1.1349e-05 deg
peri 255.2170172943693 0.00010766 deg
M 48.72621942773097 9.0489e-05 deg
tp 2459131.410127551525
(2020-Oct-08.91012755)
0.0001285 TDB
period 510.4511364428885
1.40
2.2972e-06
6.289e-09
d
yr
n .7052584944930931 3.1739e-09 deg/d
Q 1.473744619618096 4.4216e-09 au
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      2726 days (7.46 yr)  
   first obs. used      2009-05-13  
   last obs. used      2016-10-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .67846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:45:08  

Additional Information
 Earth MOID = .127788 au 
 Jupiter MOID = 3.723 au 
 T_jup = 5.071 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.8   n/a E2016-UA7  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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