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154660 Kavelaars (2004 FX29)
Classification: Inner Main-belt Asteroid          SPK-ID: 2154660
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .110387076629698 7.7458e-08  
a 1.920633818223578 1.9416e-08 au
q 1.708620665753742 1.4603e-07 au
i 22.51374699958863 1.2014e-05 deg
node 182.4614728145189 1.7791e-05 deg
peri 252.1093676597978 7.0605e-05 deg
M 310.7974153377101 8.0577e-05 deg
tp 2457733.377271207481
0.00021917 JED
period 972.2216416682603
n .3702859353987087 5.615e-09 deg/d
Q 2.132646970693413 2.1559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      5387 days (14.75 yr)  
   first obs. used      2000-10-01  
   last obs. used      2015-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62893  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 07:54:27  

Additional Information
 Earth MOID = .797274 au 
 Jupiter MOID = 3.11311 au 
 T_jup = 3.825 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2 mag n/a MPO338287  

154660 Kavelaars           Discovered 2004 Mar. 29 by D. D. Balam at Mauna Kea.
John J. Kavelaars (b. 1966) is an associate research officer at the Herzberg Institute of Astrophysics of the National Research Council of Canada and a co-discoverer of several dozen irregular satellites of the outer planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

Alternate Designations
 2004 FX29 = 2000 WS2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2016-Apr-29 08:04 UT
(server date/time)  
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