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(2018 QA1)
Classification: Amor [NEO]          SPK-ID: 3826900
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4958788014867109 0.00052308  
a 2.051853756287535 0.0021696 au
q 1.034382974793666 2.0488e-05 au
i 16.14048648172028 0.010379 deg
node 148.7499927596593 0.00056872 deg
peri 189.4975009775849 0.002331 deg
M 214.6756947127866 0.33949 deg
tp 2459433.864953880638
(2021-Aug-07.36495388)
1.6998 TDB
period 1073.539509366273
2.94
1.7027
0.004662
d
yr
n .3353393115568831 0.00053188 deg/d
Q 3.069324537781404 0.0032455 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      19 days  
   first obs. used      2018-08-20  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .33348  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-27 14:01:08  

Additional Information
 Earth MOID = .027846 au 
 Jupiter MOID = 2.33807 au 
 T_jup = 3.584 
[ 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 23.3   .32902 MPO452074 autocmod 2.6n

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