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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07974345849223016 5.8762e-08  
a 2.439960915667351 2.0949e-08 AU
q 2.245389993666168 1.4709e-07 AU
i 2.87538987919378 5.9896e-06 deg
node 76.72855886105155 0.00013647 deg
peri 184.9826366670072 0.00014519 deg
M 10.73348156320817 4.9234e-05 deg
tp 2456958.994003485415
(2014-Oct-28.49400349)
0.00019051 JED
period 1392.107365840059
3.81
1.7928e-05
4.908e-08
d
yr
n .2586007436163231 3.3304e-09 deg/d
Q 2.634531837668534 2.2619e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      737  
   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      .55071  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:31:19  

Additional Information
 Earth MOID = 1.2314 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 14.9 mag n/a MPO302179  

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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