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385185 (1993 RO)
Classification: TransNeptunian Object          SPK-ID: 2385185
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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1970068774493703 0.00042842  
a 39.24681621192376 0.025501 AU
q 31.51492350018334 0.0036761 AU
i 3.717780468401911 0.00014094 deg
node 170.372939058769 0.00099474 deg
peri 188.9859926201195 0.022572 deg
M 24.89471119915283 0.037944 deg
tp 2450790.241671602107
(1997-Dec-07.74167160)
3.7137 JED
period 89805.94232799626
245.88
87.527
0.2396
d
yr
n .004008643422338133 3.9069e-06 deg/d
Q 46.97870892366418 0.030524 AU
  Orbit Determination Parameters
   # obs. used (total)      20  
   data-arc span      6997 days (19.16 yr)  
   first obs. used      1994-08-10  
   last obs. used      2013-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      4  
   fit RMS      .69794  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-12 23:11:59  

Additional Information
 Earth MOID = 30.5119 AU 
 T_jup = 5.506 
[ 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 8.4 mag n/a MPC41519  

385185 (1993 RO)          Discovered 1993-Sep-14 by Jewitt, D. C., Luu, J. X. at Mauna Kea (568)
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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