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(2021 FN4)
Classification: Apollo [NEO]          SPK-ID: 54135143
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .50985549590894 2.0966e-05  
a 2.026249179926053 8.5096e-05 au
q .9931548994597724 7.7406e-07 au
i 5.66810257371769 0.00016918 deg
node 57.97849141896169 4.503e-05 deg
peri 198.7925934519765 0.0001381 deg
M 8.873901823063953 0.00055916 deg
tp 2459370.531323049789
(2021-Jun-05.03132305)
2.5558e-05 TDB
period 1053.507677736282
2.88
0.066366
0.0001817
d
yr
n .3417155922143328 2.1527e-05 deg/d
Q 3.059343460392334 0.00012848 au
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      86 days  
   first obs. used      2021-03-19  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .3774  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-16 06:20:00  

Additional Information
 Earth MOID = 2.5526E-5 au 
 Jupiter MOID = 2.02089 au 
 T_jup = 3.636 
[ 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 23.10   .49423 E2021N49 autocmod 2.9c

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