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JPL Small-Body Database Browser
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(2021 FK)
Classification: Apollo [NEO]          SPK-ID: 54132068
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5323823560908588 0.00080125  
a 2.11548033762355 0.0035986 au
q .989235931215639 1.2286e-05 au
i 1.971900327424444 0.0023883 deg
node 164.0538013371067 0.00090573 deg
peri 44.40759634250818 0.0056426 deg
M 25.08158834136699 0.063588 deg
tp 2459318.199515133668
(2021-Apr-13.69951513)
0.0012961 TDB
period 1123.859229656069
3.08
2.8677
0.007851
d
yr
n .3203248151551592 0.00081735 deg/d
Q 3.241724744031461 0.0055144 au
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      7 days  
   first obs. used      2021-03-18  
   last obs. used      2021-03-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .38841  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:48  

Additional Information
 Earth MOID = .016768 au 
 Jupiter MOID = 1.71866 au 
 T_jup = 3.539 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459293.5 (2021-Mar-20.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5336577882192839 0.00079815  
q .9894260957855321 1.284e-05 au
tp 2459318.126636286784
(2021-Apr-13.62663629)
0.001011 TDB
node 164.3455071987566 0.0020283 deg
peri 44.02572937664721 0.0071363 deg
i 1.992247783590384 0.0023282 deg
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      7 days  
   first obs. used      2021-03-18  
   last obs. used      2021-03-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .38841  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:48  

Additional Information
 Jupiter MOID = 1.71866 au 
 T_jup = 3.539 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.370470576160446E-7 -1.022799132470956E-8 -7.907230966555757E-7 -1.594246377525726E-6 5.677090162343178E-6 1.85786058623816E-6
q -1.022799132470956E-8 1.64872726699671E-10 1.253274170585889E-8 2.582070643255285E-8 -9.158311237967646E-8 -2.979710331762779E-8
tp -7.907230966555757E-7 1.253274170585889E-8 1.022209370076031E-6 1.923838283180497E-6 -6.938828447566961E-6 -2.313621410697334E-6
node -1.594246377525726E-6 2.582070643255285E-8 1.923838283180497E-6 4.11395174659619E-6 -1.440292462896519E-5 -4.632639132246373E-6
peri 5.677090162343178E-6 -9.158311237967646E-8 -6.938828447566961E-6 -1.440292462896519E-5 5.092727134002877E-5 1.652981928602129E-5
i 1.85786058623816E-6 -2.979710331762779E-8 -2.313621410697334E-6 -4.632639132246373E-6 1.652981928602129E-5 5.420508665277316E-6

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 25.43   .24939 E2021-FB9 autocmod 2.9c

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