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(2018 RQ4)
Classification: Apollo [NEO]          SPK-ID: 3827570
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4018576293980441 0.00047959  
a 1.607555923724383 0.0012446 au
q .9615473110917192 2.6511e-05 au
i .3507214351827444 0.00036291 deg
node 262.4863226460727 0.015585 deg
peri 130.9541013788935 0.016646 deg
M 285.2539414329087 0.32709 deg
tp 2459155.072901116598
(2020-Nov-01.57290112)
0.85592 TDB
period 744.4706178323473
2.04
0.86461
0.002367
d
yr
n .4835650882343767 0.0005616 deg/d
Q 2.253564536357046 0.0017448 au
  Orbit Determination Parameters
   # obs. used (total)      38  
   data-arc span      11 days  
   first obs. used      2018-09-07  
   last obs. used      2018-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .57409  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-25 05:25:30  

Additional Information
 Earth MOID = .00252485 au 
 Jupiter MOID = 3.18687 au 
 T_jup = 4.255 
[ 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 26.9   .42175 MPO452105 autocmod 2.6n

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