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JPL Small-Body Database Browser
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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1420754778082555 4.0573e-08  
a 2.357907147650697 1.085e-08 au
q 2.022906363020723 9.6537e-08 au
i 2.818186435750214 4.9847e-06 deg
node 246.4030377659501 8.6301e-05 deg
peri 102.1035684583125 8.8323e-05 deg
M 342.6182718111995 2.2176e-05 deg
tp 2459064.352650412621
(2020-Aug-02.85265041)
8.1704e-05 TDB
period 1322.478058502523
3.62
9.1282e-06
2.499e-08
d
yr
n .2722162365458354 1.8789e-09 deg/d
Q 2.69290793228067 1.2392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      10156 days (27.81 yr)  
   first obs. used      1991-09-13  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:17:15  

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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