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120569 Huangrunqian (1995 FU20)
Classification: Main-belt Asteroid          SPK-ID: 2120569
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1767535208757834 4.0041e-08  
a 3.138284671506518 2.5219e-08 au
q 2.583581806307239 1.2095e-07 au
i 11.32638534812858 4.0652e-06 deg
node 143.8133156758395 2.2012e-05 deg
peri 36.26701067814115 2.5104e-05 deg
M 179.5241333724532 1.4757e-05 deg
tp 2457987.854893494485
(2017-Aug-22.35489349)
7.5488e-05 TDB
period 2030.658672422944
5.56
2.4477e-05
6.701e-08
d
yr
n .1772823788108391 2.1369e-09 deg/d
Q 3.692987536705796 2.9677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      8983 days (24.59 yr)  
   first obs. used      1995-03-24  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52503  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 14:13:40  

Additional Information
 Earth MOID = 1.59811 au 
 Jupiter MOID = 1.32064 au 
 T_jup = 3.157 
[ 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 14.8   n/a MPO493688  

120569 Huangrunqian           Discovered 1995 Mar. 24 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Chinese astrophysicist and academician of the Chinese Academy of Sciences Huang Runqian (b. 1933) has made many contributions to astrophysics. He established a theory of the nonconservative evolution of binary stars, a theory of shock waves from colliding winds, and a theory of the evolution of rotating binary stars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081212/MPCPages.arcLast Updated: 2008-12-12

[ show close-approach data ]
Alternate Designations
 1995 FU20 = 2000 AF178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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