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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068777363683218 7.1554e-08  
a 2.455639711980576 4.7542e-08 au
q 2.193186498227935 1.6351e-07 au
i 5.653502222227825 8.2815e-06 deg
node 316.7994425068574 0.00010873 deg
peri 339.6839838821419 0.00013649 deg
M 195.6736374691318 9.5557e-05 deg
tp 2459842.078999818459
(2022-Sep-19.57899982)
0.0003881 TDB
period 1405.547085552134
3.85
4.0818e-05
1.118e-07
d
yr
n .2561280256638168 7.4382e-09 deg/d
Q 2.718092925733218 5.2624e-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 = 1.17643 au 
 Jupiter MOID = 2.46233 au 
 T_jup = 3.478 
[ 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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