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JPL Small-Body Database Browser
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(2021 FK1)
Classification: Apollo [NEO]          SPK-ID: 54132116
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5843939669004385 0.00047398  
a 2.050299183422787 0.0021508 au
q .8521167102896148 7.7916e-05 au
i 2.367270935732313 0.0015152 deg
node 2.79629655435617 5.5269e-05 deg
peri 234.3740823260694 0.00087508 deg
M 20.40784860786639 0.029504 deg
tp 2459335.711838576687
(2021-May-01.21183858)
0.0077713 TDB
period 1072.319700762457
2.94
1.6873
0.00462
d
yr
n .3357207740788752 0.00052827 deg/d
Q 3.24848165655596 0.0034078 au
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      4 days  
   first obs. used      2021-03-20  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .49574  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:51  

Additional Information
 Earth MOID = .00124781 au 
 Jupiter MOID = 1.77735 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459295.5 (2021-Mar-22.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5889790370229266 0.00046854  
q .8543236677800339 8.1403e-05 au
tp 2459335.338648378991
(2021-Apr-30.83864838)
0.0068768 TDB
node 2.829975581896725 2.0594e-05 deg
peri 233.7802717354546 0.0021243 deg
i 2.40445919243208 0.0014569 deg
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      4 days  
   first obs. used      2021-03-20  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .49574  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:51  

Additional Information
 Jupiter MOID = 1.77735 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.195251582319644E-7 -3.813597348250317E-8 -3.221645377592187E-6 -7.433222360938545E-9 9.903803526496613E-7 6.824999467991158E-7
q -3.813597348250317E-8 6.626469357672827E-9 5.595342710937747E-7 1.287696909133395E-9 -1.723054515241983E-7 -1.185565968767828E-7
tp -3.221645377592187E-6 5.595342710937747E-7 4.729098825801725E-5 1.094089909744597E-7 -1.451155148572798E-5 -1.001667148365379E-5
node -7.433222360938545E-9 1.287696909133395E-9 1.094089909744597E-7 4.241205922858114E-10 -3.307050431679446E-8 -2.318841943816175E-8
peri 9.903803526496613E-7 -1.723054515241983E-7 -1.451155148572798E-5 -3.307050431679446E-8 4.512793252781855E-6 3.077874069289871E-6
i 6.824999467991158E-7 -1.185565968767828E-7 -1.001667148365379E-5 -2.318841943816175E-8 3.077874069289871E-6 2.122526751379462E-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 27.07   .28664 E2021G03 autocmod 2.9c

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