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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604639674690654 4.1534e-08  
a 2.603347761944792 1.9438e-08 AU
q 2.185604251361418 1.0802e-07 AU
i 13.12432877816223 6.8577e-06 deg
node 170.2805287889546 2.4885e-05 deg
peri 120.2028509332741 3.6076e-05 deg
M 159.2100493128308 2.5259e-05 deg
tp 2456321.976830287744
(2013-Jan-29.47683029)
0.00010834 JED
period 1534.252028378252
4.20
1.7183e-05
4.704e-08
d
yr
n .2346420231756384 2.6279e-09 deg/d
Q 3.021091272528165 2.2557e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      8160 days (22.34 yr)  
   first obs. used      1992-09-21  
   last obs. used      2015-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49003  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:24:02  

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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