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(2018 XN5)
Classification: Apollo [NEO]          SPK-ID: 3836924
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4498999029443387 2.8288e-05  
a 1.78884911730495 9.2878e-05 au
q .9840460730473871 4.8883e-07 au
i 3.491831281525312 0.00016001 deg
node 278.4601542610595 4.6437e-05 deg
peri 182.5254483465952 1.6981e-05 deg
M 294.8707820792764 0.023001 deg
tp 2459358.600176859492
(2021-May-24.10017686)
0.068149 TDB
period 873.8944744998524
2.39
0.06806
0.0001863
d
yr
n .4119490516358228 3.2083e-05 deg/d
Q 2.593652161562513 0.00013466 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      20 days  
   first obs. used      2018-12-15  
   last obs. used      2019-01-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .49219  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:56:11  

Additional Information
 Earth MOID = .000981849 au 
 Jupiter MOID = 2.59034 au 
 T_jup = 3.954 
[ 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 25.6   .57085 E2019A52 autocmod 2.6q

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