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JPL Small-Body Database Browser
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(2021 KO)
Classification: Apollo [NEO]          SPK-ID: 54146673
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 2459352.5 (2021-May-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4584077905357848 0.0023285  
a 1.831645852965025 0.0077686 au
q .992005124463295 0.00013441 au
i 1.681527192523446 0.0076495 deg
node 123.0072786494371 0.43199 deg
peri 146.3723688673196 0.46711 deg
M 348.9242801323304 0.078415 deg
tp 2459380.356730937613
(2021-Jun-14.85673094)
0.033962 TDB
period 905.4421073626032
2.48
5.7604
0.01577
d
yr
n .3975958231593822 0.0025295 deg/d
Q 2.671286581466755 0.01133 au
  Orbit Determination Parameters
   # obs. used (total)      14  
   data-arc span      1 day  
   first obs. used      2021-05-18  
   last obs. used      2021-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .38224  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-19 11:42:02  

Additional Information
 Earth MOID = .00559196 au 
 Jupiter MOID = 2.44853 au 
 T_jup = 3.895 
[ 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 26.34   .33334 MPO622910 autocmod 2.9c

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