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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1159546473720458 8.1368e-08  
a 2.401795865524854 2.7429e-08 AU
q 2.123296472878282 2.0105e-07 AU
i 7.853647894972322 7.8412e-06 deg
node 80.62775013941646 6.6786e-05 deg
peri 212.5868163975148 7.6879e-05 deg
M 308.2676774133024 4.1008e-05 deg
tp 2456595.871874096274
(2013-Oct-30.37187410)		 0.00015591 JED
period 1359.573109380252
3.72		 2.329e-05
6.376e-08		 d
yr
n .2647889970139984 4.536e-09 deg/d
Q 2.680295258171427 3.061e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      6446 days (17.65 yr)  
   first obs. used      1995-08-29  
   last obs. used      2013-04-22  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .53542  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 14:36:29  

Additional Information
 Earth MOID = 1.11174 AU 
 T_jup = 3.503 
[ 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 14.8 mag n/a PDS3 (MPO 11180)  

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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