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18593 Wangzhongcheng (1998 AG11)
Classification: Main-belt Asteroid          SPK-ID: 2018593
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08006634097134951 4.512e-08  
a 2.439598230821623 1.7666e-08 au
q 2.244268527039558 1.0595e-07 au
i 2.875424698704331 4.9033e-06 deg
node 76.72021429250728 0.00013446 deg
peri 184.8695833705469 0.00014311 deg
M 165.9948257729791 4.8274e-05 deg
tp 2456958.746949729625
(2014-Oct-28.24694973)
0.00018864 JED
period 1391.796985366894
3.81
1.5118e-05
4.139e-08
d
yr
n .2586584133928841 2.8095e-09 deg/d
Q 2.634927934603688 1.908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      7003 days (19.17 yr)  
   first obs. used      1996-10-07  
   last obs. used      2015-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54074  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:40:11  

Additional Information
 Earth MOID = 1.22859 au 
 Jupiter MOID = 2.39596 au 
 T_jup = 3.496 
[ 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 15.0 mag n/a MPO347669  

18593 Wangzhongcheng           Discovered 1998 Jan. 5 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Wang Zhongcheng (b. 1925), neurosurgeon-academician of the Chinese Academy of Engineering, is a pioneer in micro-neurosurgery technology and has developed new methods for treating tumors in the brain stem and spinal cord. He was awarded China's State Supreme Science and Technology Prize in 2008.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 1998 AG11 = 1996 TX40 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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