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23733 Hyojiyun (1998 HE123)
Classification: Main-belt Asteroid          SPK-ID: 2023733
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1157968298142983 5.7639e-08  
a 2.401247806474195 1.8734e-08 AU
q 2.123190922885945 1.42e-07 AU
i 7.853525115048637 6.7774e-06 deg
node 80.62353890306048 4.8697e-05 deg
peri 212.4352944192327 5.7905e-05 deg
M 107.3032771225026 3.2231e-05 deg
tp 2456595.398003401123
(2013-Oct-29.89800340)
0.00012061 JED
period 1359.107780176195
3.72
1.5905e-05
4.355e-08
d
yr
n .2648796550582099 3.0997e-09 deg/d
Q 2.679304690062444 2.0903e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      7004 days (19.18 yr)  
   first obs. used      1995-08-29  
   last obs. used      2014-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51161  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:43:27  

Additional Information
 Earth MOID = 1.11279 AU 
 T_jup = 3.504 
[ 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 14.6 mag n/a MPO266079  

23733 Hyojiyun           Discovered 1998 Apr. 23 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Hyo Ji Yun (b. 1989) was awarded second place in the 2007 Intel International Science and Engineering Fair for his materials and bioengineering team project. He attends the Tianjin International School, Tianjin, China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070828/MPCPages.arcLast Updated: 2007-08-30

Alternate Designations
 1998 HE123 = 1999 SE11 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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