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(2012 KA4)
Classification: Apollo [NEO, PHA]          SPK-ID: 3604304
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .780079772217432 8.6153e-08  
a 1.100186358109393 1.2813e-08 au
q .2419532344786917 9.6474e-08 au
i 5.805630419610354 1.3414e-05 deg
node 214.9519642131938 8.489e-05 deg
peri 237.4460032624214 7.4303e-05 deg
M 27.52777755131863 4.6353e-05 deg
tp 2458968.269543288397
(2020-Apr-28.76954329)
5.3715e-05 TDB
period 421.500224438613
1.15
7.3632e-06
2.016e-08
d
yr
n .8540920719069039 1.492e-08 deg/d
Q 1.958419481740094 2.2808e-08 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      2573 days (7.04 yr)  
   first obs. used      2012-05-17  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53256  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jun-10 11:38:18  

Additional Information
 Earth MOID = .025904 au 
 Jupiter MOID = 3.28139 au 
 T_jup = 5.302 
[ 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 21.1   n/a MPO343575  

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