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

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2455705.5 (2011-May-24.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9550150213545254 0.00075809  
a 2.22582605998887 0.023424 AU
q .1001287377771401 0.00063367 AU
i 5.900261481376121 0.04032 deg
node 205.1827752370263 0.22362 deg
peri 188.3744537757589 0.16972 deg
M 347.9797096040496 0.20802 deg
tp 2455745.999318963411
0.061585 JED
period 1212.928668656776
n .2968022846707647 0.0046851 deg/d
Q 4.351523382200599 0.045793 AU
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      9 days  
   first obs. used      2011-05-21  
   last obs. used      2011-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      8  
   fit RMS      .40129  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 14:39:04  

Additional Information
 Earth MOID = .0422331 AU 
 T_jup = 2.724 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.8 mag n/a MPO200072  
rotation period rot_per 8.2 h n/a LCDB (Rev. 2015-Feb); 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,]
[Skiff, B.A. (2011) Posting on CALL web site.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
FirstGov 2015-Apr-01 09:24 UT
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