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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1420754771510271 4.0517e-08  
a 2.357907146758128 1.0199e-08 au
q 2.02290636380465 9.6493e-08 au
i 2.818186562205046 4.8636e-06 deg
node 246.4030389601235 8.6205e-05 deg
peri 102.1035656456564 8.7972e-05 deg
M 342.6182739375746 2.026e-05 deg
tp 2459064.352642565019
(2020-Aug-02.85264257)
7.4618e-05 TDB
period 1322.478057751601
3.62
8.5802e-06
2.349e-08
d
yr
n .2722162367004037 1.7661e-09 deg/d
Q 2.692907929711606 1.1648e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1003  
   data-arc span      10549 days (28.88 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55933  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:07:02  

Additional Information
 Earth MOID = 1.01869 au 
 Jupiter MOID = 2.71749 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 15.2   n/a MPO473893  

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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