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9351 Neumayer (1991 TH6)
Classification: Main-belt Asteroid          SPK-ID: 2009351
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1419131930755334 4.0271e-08  
a 2.357506206289969 7.2938e-09 au
q 2.022944972859972 9.5498e-08 au
i 2.818224139775769 3.939e-06 deg
node 246.3995960607011 8.1315e-05 deg
peri 102.1418003925501 8.2401e-05 deg
M 37.04552058318178 1.2477e-05 deg
tp 2459064.446131363571
(2020-Aug-02.94613136)
4.593e-05 TDB
period 1322.140759208295
3.62
6.1357e-06
1.68e-08
d
yr
n .2722856832698887 1.2636e-09 deg/d
Q 2.692067439719966 8.3288e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1422  
   data-arc span      10713 days (29.33 yr)  
   first obs. used      1991-09-13  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:19:40  

Additional Information
 Earth MOID = 1.01697 au 
 Jupiter MOID = 2.71839 au 
 T_jup = 3.538 
[ 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 15.28   n/a MPCxxxxx  

9351 Neumayer           Discovered 1991 Oct. 2 by L. D. Schmadel and F. Börngen at Tautenburg.
Georg von Neumayer (1826-1909), German geophysicist and hydrographer, was the founder of the German Hydrographic Office. Neumayer is known as an outstanding Antarctic researcher, and he played a major role in instituting the International Polar Year. His name was given to the German Antarctic station in 1981.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1991 TH6 = 1997 JS4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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