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(2018 FW4)
Classification: Apollo [NEO]          SPK-ID: 3802092
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 2458200.5 (2018-Mar-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4598947219219548 0.0019178  
a 1.632727916670379 0.0051491 au
q .8818449654590423 0.00035043 au
i 3.43894520619624 0.010803 deg
node 196.7433589093617 0.0049059 deg
peri 52.57217486505762 0.0039882 deg
M 334.7265371786909 0.13674 deg
tp 2458253.997243392933
(2018-May-15.49724339)
0.036386 TDB
period 762.0248858505381
2.09
3.6048
0.009869
d
yr
n .472425516127579 0.0022348 deg/d
Q 2.383610867881715 0.0075172 au
  Orbit Determination Parameters
   # obs. used (total)      31  
   data-arc span      7 days  
   first obs. used      2018-03-22  
   last obs. used      2018-03-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .3387  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:25:00  

Additional Information
 Earth MOID = .00104893 au 
 Jupiter MOID = 2.66365 au 
 T_jup = 4.180 
[ 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 25.1   n/a E2018G26  

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