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5366 Rhianjones (1981 EY30)
Classification: Main-belt Asteroid          SPK-ID: 2005366
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2065930330054635 5.9352e-08  
a 2.241066262319483 9.75e-09 AU
q 1.778077586020683 1.3286e-07 AU
i 4.047969253121475 6.2768e-06 deg
node 158.3761402438541 6.7133e-05 deg
peri 171.5033156548862 6.8257e-05 deg
M 240.0660845997992 1.4385e-05 deg
tp 2457408.744163573662
(2016-Jan-21.24416357)
5.0619e-05 JED
period 1225.407328661865
3.35
7.9969e-06
2.189e-08
d
yr
n .2937798653392394 1.9172e-09 deg/d
Q 2.704054938618283 1.1764e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1203  
   data-arc span      15764 days (43.16 yr)  
   first obs. used      1971-03-24  
   last obs. used      2014-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53805  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:31:32  

Additional Information
 Earth MOID = .767935 AU 
 T_jup = 3.603 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO250260  

5366 Rhianjones           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Rhian Jones (b. 1960) is an experimental and sample petrologist at the Institute of Meteoritics at the University of New Mexico. His work has enhanced our understanding of processes by which chondrules were formed in the solar nebula and later modified by heat and fluids on minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1981 EY30 = 1972 TH8 = 1982 SX6 = 1989 WD2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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