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94400 Hongdaeyong (2001 SG267)
Classification: Main-belt Asteroid          SPK-ID: 2094400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348771598734351 3.9233e-08  
a 2.194177528306132 1.3435e-08 au
q 1.898233095030087 8.6542e-08 au
i 2.796242528678982 7.3121e-06 deg
node 15.06725577924587 0.0001262 deg
peri 223.2748219440452 0.00013087 deg
M 83.81887402721149 3.6813e-05 deg
tp 2458924.095319459745
(2020-Mar-15.59531946)
0.0001205 TDB
period 1187.151296761487
3.25
1.0903e-05
2.985e-08
d
yr
n .3032469416342037 2.7851e-09 deg/d
Q 2.490121961582176 1.5247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      7894 days (21.61 yr)  
   first obs. used      1997-04-30  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65475  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:06:36  

Additional Information
 Earth MOID = .88602 au 
 Jupiter MOID = 2.51141 au 
 T_jup = 3.657 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO417469  

94400 Hongdaeyong           Discovered 2001 Sept. 25 by Y.-B. Jeon, Y.-H. Park and K.-J. Choo at Bohyunsan Optical Astronomy Observatory.
Hong Daeyong (1731-1783), a scientist in the late Chosun Dynasty, worked to overcome old, conventional cosmology in Korea and advocated new concepts introduced through China. He also invented numerous astronomical instruments.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

Alternate Designations
 2001 SG267 = 1997 HC9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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