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410631 (2008 RA20)
Classification: Main-belt Asteroid          SPK-ID: 2410631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1738842179038495 8.8787e-08  
a 3.091743130838832 3.7418e-08 au
q 2.554137794573323 2.6798e-07 au
i 10.19769813756707 1.0551e-05 deg
node 191.4319647943483 3.6102e-05 deg
peri 163.6770502644712 4.76e-05 deg
M 57.65430991495548 2.4678e-05 deg
tp 2458682.495832726731
(2019-Jul-17.99583273)
0.00013705 TDB
period 1985.65381126313
5.44
3.6047e-05
9.869e-08
d
yr
n .1813004854914734 3.2913e-09 deg/d
Q 3.629348467104341 4.3924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      5872 days (16.08 yr)  
   first obs. used      2003-11-18  
   last obs. used      2019-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59002  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:50:44  

Additional Information
 Earth MOID = 1.55195 au 
 Jupiter MOID = 1.84699 au 
 T_jup = 3.177 
[ 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 16.5   n/a MPO495081  

410631 (2008 RA20)          Discovered 2008-Aug-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-10-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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