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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1221405002619127 8.0053e-08  
a 2.641407326667641 2.2603e-08 AU
q 2.318784514392974 2.1358e-07 AU
i 9.428228907983012 8.249e-06 deg
node 290.0221955896369 3.9859e-05 deg
peri 229.6941885113013 4.9315e-05 deg
M 190.7830429742681 3.1368e-05 deg
tp 2457737.543082217108
(2016-Dec-15.04308222)
0.00013947 JED
period 1568.019625585223
4.29
2.0126e-05
5.51e-08
d
yr
n .2295889631264273 2.9469e-09 deg/d
Q 2.964030138942308 2.5363e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      860  
   data-arc span      13317 days (36.46 yr)  
   first obs. used      1978-03-06  
   last obs. used      2014-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52757  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:48:36  

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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