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5784 Yoron (1991 CY)
Classification: Main-belt Asteroid          SPK-ID: 2005784
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1221405041330876 7.9741e-08  
a 2.64140732419807 2.2111e-08 AU
q 2.318784501999688 2.1236e-07 AU
i 9.428228367635626 8.101e-06 deg
node 290.0221969266981 3.9466e-05 deg
peri 229.6941902000892 4.8639e-05 deg
M 190.7830413433934 3.1205e-05 deg
tp 2457737.543088286920
(2016-Dec-15.04308829)
0.00013896 JED
period 1568.019623386204
4.29
1.9689e-05
5.391e-08
d
yr
n .229588963448407 2.8828e-09 deg/d
Q 2.964030146396452 2.4812e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      875  
   data-arc span      13358 days (36.57 yr)  
   first obs. used      1978-03-06  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52423  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:05:10  

Additional Information
 Earth MOID = 1.34196 AU 
 T_jup = 3.365 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO265988  

5784 Yoron           Discovered 1991 Feb. 9 by A. Natori and T. Urata at Yakiimo.
Yoron island is located in the north of Okinawa prefecture. The name was suggested by Y. Ueno, who lives on this island (latitude +27\rm o ) and succeeded in observing \alpha Crucis (declination -63\rm o ) from there in Mar. 2008 using the atmospheric refraction.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1991 CY = 1978 EK4 = 1980 RM5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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