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227218 Renyi (2005 RU3)
Classification: Main-belt Asteroid          SPK-ID: 2227218
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .200435473689859 4.9188e-08  
a 2.381914514046008 1.0274e-08 au
q 1.904494350134446 1.1542e-07 au
i 1.392238335833321 6.6187e-06 deg
node 18.3792516188409 0.0001883 deg
peri 311.0942188973111 0.00018903 deg
M 67.4932032836012 1.7123e-05 deg
tp 2458948.764060430255
(2020-Apr-09.26406043)
6.3094e-05 TDB
period 1342.726879687563
3.68
8.6875e-06
2.379e-08
d
yr
n .2681111143643506 1.7347e-09 deg/d
Q 2.85933467795757 1.2333e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      9618 days (26.33 yr)  
   first obs. used      1994-10-12  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:53  

Additional Information
 Earth MOID = .891881 au 
 Jupiter MOID = 2.4919 au 
 T_jup = 3.510 
[ 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 17.3   n/a MPO475860  

227218 Rényi           Discovered 2005 Sept. 5 by K. Sárneczky at Piszkesteto.
Alfréd Rényi (1921-1970) was a Hungarian mathematician, who worked mostly in probability theory, as well as combinatorics, graph theory and number theory. In 1950, he founded the Mathematics Research Institute of the Hungarian Academy of Sciences, now bearing his name, and directed it until his early death.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

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