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23946 Marcelleroux (1998 UL6)
Classification: Main-belt Asteroid          SPK-ID: 2023946
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | 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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05575825374406313 6.4375e-08  
a 2.996664712156537 2.7075e-08 au
q 2.829575920750233 1.945e-07 au
i 12.19690135362488 6.5527e-06 deg
node 111.3630511545497 3.4385e-05 deg
peri 24.21045762849394 7.8284e-05 deg
M 129.8459381689622 6.6932e-05 deg
tp 2456917.089691542666
0.00035396 JED
period 1894.7663247232
n .1899970435945927 2.575e-09 deg/d
Q 3.163753503562841 2.8585e-08 au
  Orbit Determination Parameters
   # obs. used (total)      849  
   data-arc span      7790 days (21.33 yr)  
   first obs. used      1994-02-14  
   last obs. used      2015-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50434  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 20:29:02  

Additional Information
 Earth MOID = 1.84732 au 
 Jupiter MOID = 1.91926 au 
 T_jup = 3.218 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO319383  

23946 Marcelleroux           Discovered 1998 Oct. 22 by the OCA-DLR Asteroid Survey at Caussols.
Belgian amateur astronomer Marcel Le roux (b. 1930) has worked for many years in the south of France, where he has used and improved the Schmidt telescope at the Observatoire provençal d´astrophotographie. After photographing comets and minor planets, he now mostly spends time on H \alpha photography of the sun.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

[ show close-approach data ]
Alternate Designations
 1998 UL6 = 2000 GR136 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-06 16:49 UT
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