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JPL Small-Body Database Browser
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(2018 NL4)
Classification: Apollo [NEO]          SPK-ID: 3825652
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 2458314.5 (2018-Jul-15.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5497639185468097 0.0011052  
a 1.944385536661898 0.0043986 au
q .8754325248609114 0.00016848 au
i 2.541287961486174 0.003378 deg
node 138.7554882939696 0.011341 deg
peri 210.8685949827827 0.012024 deg
M 344.465739731621 0.060657 deg
tp 2458357.232674644247
(2018-Aug-26.73267464)
0.021854 TDB
period 990.3119045355234
2.71
3.3604
0.0092
d
yr
n .3635218342334756 0.0012335 deg/d
Q 3.013338548462885 0.0068168 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      6 days  
   first obs. used      2018-07-13  
   last obs. used      2018-07-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .41491  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:33:05  

Additional Information
 Earth MOID = .0163836 au 
 Jupiter MOID = 2.41826 au 
 T_jup = 3.696 
[ 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 24.2   n/a E2018O28  

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