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JPL Small-Body Database Browser
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(2021 KO1)
Classification: Apollo [NEO]          SPK-ID: 54147137
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 2459355.5 (2021-May-21.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4937988312279362 0.0019867  
a 1.859424879012776 0.0070565 au
q .9412430470001205 0.00012209 au
i 17.7924320035886 0.045562 deg
node 64.15590814268253 0.0014461 deg
peri 224.1621963109701 0.016826 deg
M 344.1609979797252 0.10551 deg
tp 2459396.246630079872
(2021-Jun-30.74663008)
0.039482 TDB
period 926.1181234762815
2.54
5.2719
0.01443
d
yr
n .3887193122284469 0.0022128 deg/d
Q 2.777606711025431 0.010541 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      9 days  
   first obs. used      2021-05-19  
   last obs. used      2021-05-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .45326  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-30 05:59:27  

Additional Information
 Earth MOID = .0193456 au 
 Jupiter MOID = 2.514 au 
 T_jup = 3.788 
[ 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 25.30   .47905 MPO622914 autocmod 2.9c

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