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30882 Tomhenning (1992 SG2)
Classification: Main-belt Asteroid          SPK-ID: 2030882
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604639677489797 4.1536e-08  
a 2.603347763171708 1.9534e-08 AU
q 2.185604251662745 1.0802e-07 AU
i 13.12432828520292 6.9284e-06 deg
node 170.2805276063929 2.4991e-05 deg
peri 120.2028495080227 3.6366e-05 deg
M 159.210051322245 2.545e-05 deg
tp 2456321.976821244335
(2013-Jan-29.47682124)
0.00010924 JED
period 1534.252029462854
4.20
1.7268e-05
4.728e-08
d
yr
n .2346420230097639 2.6409e-09 deg/d
Q 3.021091274680671 2.2668e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      7739 days (21.19 yr)  
   first obs. used      1992-09-21  
   last obs. used      2013-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49403  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 02:42:20  

Additional Information
 Earth MOID = 1.20398 AU 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO267816  

30882 Tomhenning           Discovered 1992 Sept. 21 by L. D. Schmadel and F. Börngen at Tautenburg.
Thomas Henning (b. 1956), managing director of the Heidelberg Max-Planck-Institute for Astronomy, is a leading expert in the fields of the formation of stars and planets, as well as in laboratory astrophysics. The name was suggested by the first discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091004/MPCPages.arcLast Updated: 2009-10-06

Alternate Designations
 1992 SG2 = 1999 FR23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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