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7103 Wichmann (1953 GH)
Classification: Main-belt Asteroid          SPK-ID: 2007103
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07684895651454475 5.9964e-08  
a 3.0190831282018 3.0233e-08 AU
q 2.787069740168824 1.7655e-07 AU
i 10.1487745409771 8.1578e-06 deg
node 183.4567346355191 3.543e-05 deg
peri 93.95286057475518 6.686e-05 deg
M 215.1151715606621 5.9333e-05 deg
tp 2457771.636826279558
(2017-Jan-18.13682628)
0.00031988 JED
period 1916.068510768009
5.25
2.8781e-05
7.88e-08
d
yr
n .187884722272119 2.8222e-09 deg/d
Q 3.251096516234776 3.2557e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      22267 days (60.96 yr)  
   first obs. used      1953-04-07  
   last obs. used      2014-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51463  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:36:19  

Additional Information
 Earth MOID = 1.79665 AU 
 T_jup = 3.219 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO279589  

7103 Wichmann           Discovered 1953 Apr. 7 by K. Reinmuth at Heidelberg.
Moritz Ludwig Georg Wichmann (1821-1859) was an ardent observer of minor planets. A student of Bessel, he observed with the famous Königsberg heliometer. In 1853 he published a determination of the parallax of Groombridge 1830. The name was suggested by L. D. Schmadel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

[ show close-approach data ]
Alternate Designations
 1953 GH = 1953 GN1 = 1991 PS18 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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