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(2011 KE)
Classification: Apollo [NEO, PHA]          SPK-ID: 3566441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9545352936719925 3.668e-08  
a 2.206300968576777 1.1256e-07 au
q .1003088256075416 7.6406e-08 au
i 5.879502854952852 1.3643e-05 deg
node 204.9995217458061 0.00010193 deg
peri 188.5613936617016 0.00010839 deg
M 258.2216301001636 7.5892e-05 deg
tp 2459338.914178572852
(2021-May-04.41417857)
0.00027823 TDB
period 1197.003886052831
3.28
9.1605e-05
2.508e-07
d
yr
n .3007509033133673 2.3016e-08 deg/d
Q 4.312293111546013 2.2001e-07 au
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      2521 days (6.90 yr)  
   first obs. used      2011-05-21  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .35345  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-16 06:27:45  

Additional Information
 Earth MOID = .0417544 au 
 Jupiter MOID = 1.13272 au 
 T_jup = 2.745 
[ 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 19.8   n/a MPO200072  
rotation period rot_per 8.2 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]

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