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(2019 QR)
Classification: Apollo [NEO]          SPK-ID: 3843576
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2458718.5 (2019-Aug-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4312176790140493 0.00091978  
a 1.751944239830728 0.0028235 au
q .9964749109688885 6.7052e-06 au
i 1.067298577659801 0.0016397 deg
node 181.4545565993253 0.011608 deg
peri 180.4654760754423 0.013174 deg
M 348.1613327041175 0.032847 deg
tp 2458746.353460605588
(2019-Sep-19.85346061)		 0.0099997 TDB
period 846.9910985250117
2.32		 2.0476
0.005606		 d
yr
n .4250339827973637 0.0010275 deg/d
Q 2.507413568692567 0.0040411 au
   Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      4 days  
   first obs. used      2019-08-21  
   last obs. used      2019-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .58761  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-25 05:25:34  

Additional Information
 Earth MOID = .00302651 au 
 Jupiter MOID = 2.94794 au 
 T_jup = 4.017 
[ 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 26.4   .34972 MPO473758 autocmod 2.8

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