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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07633108887892313 1.0438e-07  
a 1.896989572297969 1.3056e-08 au
q 1.752190292652502 1.975e-07 au
i 20.90701581816319 1.1645e-05 deg
node 330.0537298451135 1.3234e-05 deg
peri 337.9935190075214 5.4256e-05 deg
M 350.3305817891707 5.4522e-05 deg
tp 2459226.132660519793
(2021-Jan-11.63266052)
0.00014451 TDB
period 954.3239919844247
2.61
9.8522e-06
2.697e-08
d
yr
n .3772303777582022 3.8944e-09 deg/d
Q 2.041788851943436 1.4053e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5474  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 07:07:03  

Additional Information
 Earth MOID = .744631 au 
 Jupiter MOID = 3.21478 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 17.43   n/a E2021B25  

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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