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321821 (2010 RT46)
Classification: Inner Main-belt Asteroid          SPK-ID: 2321821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07620913714682674 1.0448e-07  
a 1.896666617303046 1.307e-08 au
q 1.75212329094319 1.9758e-07 au
i 20.90614507812391 1.1645e-05 deg
node 330.0581788827766 1.3235e-05 deg
peri 338.0976637404697 5.4205e-05 deg
M 274.7669741074814 5.4522e-05 deg
tp 2459226.386529726064
(2021-Jan-11.88652973)
0.00014432 TDB
period 954.0802975120102
2.61
9.8621e-06
2.7e-08
d
yr
n .3773267312392731 3.9003e-09 deg/d
Q 2.041209943662902 1.4066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      5885 days (16.11 yr)  
   first obs. used      2004-01-17  
   last obs. used      2020-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5474  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:13:30  

Additional Information
 Earth MOID = .74645 au 
 Jupiter MOID = 3.21601 au 
 T_jup = 3.868 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO402270  

321821 (2010 RT46)          Discovered 2010-Sep-03 by Seki, T. at Geisei
Reference: 20120308/Numbers.arcLast Updated: 2012-03-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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