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28340 Yukihiro (1999 EG5)
Classification: Main-belt Asteroid          SPK-ID: 2028340
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 .1517111967256861 8.1078e-08  
a 3.011079843020754 3.6744e-08 AU
q 2.554265316599484 2.3342e-07 AU
i 11.83396820578039 7.7404e-06 deg
node 80.69691273163122 3.3682e-05 deg
peri 285.8295356762611 4.1682e-05 deg
M 172.9546011610649 2.5363e-05 deg
tp 2456083.622208013656
(2012-Jun-05.12220801)
0.00013045 JED
period 1908.454605423874
5.23
3.4933e-05
9.564e-08
d
yr
n .1886343007462013 3.4528e-09 deg/d
Q 3.467894369442024 4.2318e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      962  
   data-arc span      6183 days (16.93 yr)  
   first obs. used      1998-01-25  
   last obs. used      2014-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50957  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 03:14:08  

Additional Information
 Earth MOID = 1.58534 AU 
 T_jup = 3.200 
[ 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 12.4 mag n/a MPO257062  

28340 Yukihiro           Discovered 1999 Mar. 13 by H. Abe at Yatsuka.
Yukihiro Adachi (b. 1965) is a member of Matsue Astronomy Club. He has popularized astronomy in Shimane prefecture and is an observing partner of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

Alternate Designations
 1999 EG5 = 2000 JF57 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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