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JPL Small-Body Database Browser
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392539 (2011 RO1)
Classification: Main-belt Asteroid          SPK-ID: 2392539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03042050489515538 7.9741e-08  
a 3.045873114849767 6.1608e-08 au
q 2.953216116849458 2.3821e-07 au
i 15.55528799959537 8.6933e-06 deg
node 342.2538133197166 2.3065e-05 deg
peri 315.5664609689437 0.00017531 deg
M 205.3259931918958 0.00018107 deg
tp 2459434.720721784468
(2021-Aug-08.22072178)
0.00099341 TDB
period 1941.628500094387
5.32
5.8909e-05
1.613e-07
d
yr
n .1854113698797167 5.6254e-09 deg/d
Q 3.138530112850076 6.3482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      4516 days (12.36 yr)  
   first obs. used      2006-09-28  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51983  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:18:17  

Additional Information
 Earth MOID = 1.95409 au 
 Jupiter MOID = 1.99812 au 
 T_jup = 3.182 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO434454  

392539 (2011 RO1)          Discovered 2008-Dec-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2011 RO1 = 2009 DX12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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