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JPL Small-Body Database Browser
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(2021 KA1)
Classification: Aten [NEO]          SPK-ID: 54146683
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3181171175082762 0.00065451  
a .9656310189788394 0.00010913 au
q .6584472626447114 0.0005576 au
i 2.549928291428478 0.0069665 deg
node 211.3377956663116 0.019659 deg
peri 152.2902590879486 0.021241 deg
M 312.7533533004043 0.073204 deg
tp 2459441.986626477793
(2021-Aug-15.48662648)
0.062766 TDB
period 346.5893703763231
0.95
0.058756
0.0001609
d
yr
n 1.038693135941001 0.00017609 deg/d
Q 1.272814775312967 0.00014385 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      13 days  
   first obs. used      2021-05-12  
   last obs. used      2021-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .6553  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-25 09:49:07  

Additional Information
 Earth MOID = .0260118 au 
 Jupiter MOID = 4.18383 au 
 T_jup = 6.205 
[ 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 26.08   .19282 MPO622912 autocmod 2.9c

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