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175718 Wuzhengyi (1997 CG19)
Classification: Main-belt Asteroid          SPK-ID: 2175718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458065224169307 6.1602e-08  
a 2.366987125629958 1.3381e-08 au
q 2.021864964236207 1.4198e-07 au
i 2.286926132428394 6.7634e-06 deg
node 359.3331162843078 0.00012121 deg
peri 132.2676193828493 0.0001227 deg
M 208.3915107802129 2.0796e-05 deg
tp 2459760.661543035260
(2022-Jun-30.16154304)
7.9325e-05 TDB
period 1330.124431227262
3.64
1.1279e-05
3.088e-08
d
yr
n .2706513703141591 2.2951e-09 deg/d
Q 2.712109287023708 1.5332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      9103 days (24.92 yr)  
   first obs. used      1995-09-21  
   last obs. used      2020-08-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52965  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:31  

Additional Information
 Earth MOID = 1.0371 au 
 Jupiter MOID = 2.32521 au 
 T_jup = 3.532 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.93   n/a E2021B55  

175718 Wuzhengyi           Discovered 1997 Feb. 2 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Wu Zhengyi (b. 1916), botanist-academician of the Chinese Academy of Sciences, has made pioneering achievements in plant taxonomy, floristics and the study on Chinese plant resources. He was awarded the International COSMOS Prize in 1999 and China's State Supreme Science and Technology Prize in 2007.
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
 1997 CG19 = 1999 VR18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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