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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07961308514014276 5.8766e-08  
a 2.439598772490358 2.0945e-08 AU
q 2.245374787708295 1.4708e-07 AU
i 2.875506552511516 5.9921e-06 deg
node 76.72809634419937 0.00013648 deg
peri 185.0173935292994 0.00014523 deg
M 318.9742532076629 4.9487e-05 deg
tp 2456959.109804791317
(2014-Oct-28.60980479)
0.00019084 JED
period 1391.797448902002
3.81
1.7923e-05
4.907e-08
d
yr
n .2586583272472631 3.331e-09 deg/d
Q 2.63382275727242 2.2612e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      6474 days (17.72 yr)  
   first obs. used      1996-10-07  
   last obs. used      2014-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55296  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:41:12  

Additional Information
 Earth MOID = 1.22961 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 14.8 mag n/a MPO257000  

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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