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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604639676279703 4.1535e-08  
a 2.603347762817652 1.949e-08 AU
q 2.185604251680532 1.0802e-07 AU
i 13.12432870929564 6.8952e-06 deg
node 170.2805285785713 2.4944e-05 deg
peri 120.2028492447705 3.6235e-05 deg
M 159.2100507902219 2.5363e-05 deg
tp 2456321.976823650135
(2013-Jan-29.47682365)
0.00010883 JED
period 1534.252029149867
4.20
1.7229e-05
4.717e-08
d
yr
n .2346420230576309 2.635e-09 deg/d
Q 3.021091273954773 2.2617e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      8135 days (22.27 yr)  
   first obs. used      1992-09-21  
   last obs. used      2014-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49248  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 03:22:28  

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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