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30850 Vonsiemens (1991 TN2)
Classification: Main-belt Asteroid          SPK-ID: 2030850
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936431342051683 4.3805e-08  
a 2.76415659744553 1.1519e-08 au
q 2.228896650482284 1.2411e-07 au
i 9.100302164488886 4.5318e-06 deg
node 349.1349837886614 2.1501e-05 deg
peri 201.8137477318755 2.3483e-05 deg
M 308.9424893745744 1.0115e-05 deg
tp 2459438.567180035884
(2021-Aug-12.06718004)
4.778e-05 TDB
period 1678.581344117456
4.60
1.0493e-05
2.873e-08
d
yr
n .2144668182221914 1.3407e-09 deg/d
Q 3.299416544408776 1.375e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1855  
   data-arc span      12223 days (33.46 yr)  
   first obs. used      1987-10-02  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45737  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:54  

Additional Information
 Earth MOID = 1.23207 au 
 Jupiter MOID = 1.68185 au 
 T_jup = 3.295 
[ 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 13.78   n/a MPCxxxxx  

30850 Vonsiemens           Discovered 1991 Oct. 7 by F. Borngen and L. D. Schmadel at Tautenburg.
German inventor Werner von Siemens (1816-1892) played an important role in the development of telegraphy. He invented the dynamo and built the world's first electric train and streetcar. He was the founder of electrotechnology and the electric power engineering.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1991 TN2 = 1989 EW10 = 2000 QU83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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