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(2009 DR3)
Classification: Apollo [NEO, PHA]          SPK-ID: 3447934
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5604946588787699 6.7803e-08  
a 1.975873385556925 4.1937e-08 au
q .868406906331556 1.2771e-07 au
i 4.080371757473726 9.8806e-06 deg
node 344.6994397552081 1.7158e-05 deg
peri 237.5151034951133 2.9657e-05 deg
M 1.438108813846802 5.014e-05 deg
tp 2458996.447469041318
(2020-May-26.94746904)
0.00014116 TDB
period 1014.46506069523
2.78
3.2297e-05
8.842e-08
d
yr
n .3548668297686721 1.1298e-08 deg/d
Q 3.083339864782294 6.5442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      3977 days (10.89 yr)  
   first obs. used      2009-02-14  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .33118  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-05 05:51:03  

Additional Information
 Earth MOID = .00951011 au 
 Jupiter MOID = 1.92373 au 
 T_jup = 3.652 
[ 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 21.5   n/a MPO160607  

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