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541532 (2011 RR20)
Classification: Main-belt Asteroid          SPK-ID: 2541532
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068931875290479 7.161e-08  
a 2.455416712648661 4.7625e-08 au
q 2.192949393521549 1.6351e-07 au
i 5.653454382979517 8.282e-06 deg
node 316.7991390848671 0.00010873 deg
peri 339.7554391251994 0.00013648 deg
M 245.7948551459897 9.6702e-05 deg
tp 2459842.330120580537
(2022-Sep-19.83012058)
0.00038799 TDB
period 1405.355630993339
3.85
4.0887e-05
1.119e-07
d
yr
n .2561629185244331 7.4527e-09 deg/d
Q 2.717884031775772 5.2716e-08 au
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      5453 days (14.93 yr)  
   first obs. used      2006-03-05  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60811  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:33  

Additional Information
 Earth MOID = 1.17772 au 
 Jupiter MOID = 2.46164 au 
 T_jup = 3.479 
[ 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 17.91   n/a MPCxxxxx  

541532 (2011 RR20)          Discovered 2011-Sep-02 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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