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(2018 FB)
Classification: Apollo [NEO]          SPK-ID: 3801943
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5495047486396488 2.5041e-06  
a 2.19638592075338 1.2185e-05 au
q .98946142745413 9.0653e-08 au
i 3.095557700669053 1.7423e-05 deg
node 177.794751014727 1.9296e-05 deg
peri 29.13247678137953 3.8356e-05 deg
M 296.4304997720579 0.0024627 deg
tp 2459410.446046049051
(2021-Jul-14.94604605)
0.0098805 TDB
period 1188.944010990304
3.26
0.0098939
2.709e-05
d
yr
n .3027896996597394 2.5197e-06 deg/d
Q 3.403310414052629 1.8881e-05 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      14 days  
   first obs. used      2018-03-16  
   last obs. used      2018-03-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .39598  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:24:38  

Additional Information
 Earth MOID = .0125444 au 
 Jupiter MOID = 1.5568 au 
 T_jup = 3.453 
[ 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 24.1   n/a E2018G20  

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