+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   29227 Wegener (1992 DY13) Classification: Main-belt Asteroid          SPK-ID: 2029227 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1882364553647968 1.8651e-08   a 2.38535940739025 7.7675e-09 au q 1.936347807772037 4.4066e-08 au i 2.462399416083599 9.9733e-07 deg node 346.4781599308114 9.8736e-06 deg peri 215.2817137879271 1.1134e-05 deg M 257.6115046239445 7.474e-06 deg tp 2459583.217061710243 (2022-Jan-03.71706171) 2.8854e-05 TDB period 1345.640852613879 3.68 6.5728e-06 1.8e-08 d yr n .2675305222048718 1.3067e-09 deg/d Q 2.834371007008463 9.2296e-09 au   Orbit Determination Parameters    # obs. used (total)      2036      data-arc span      10599 days (29.02 yr)      first obs. used      1992-02-29      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4815      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 06:08:44   Additional Information  Earth MOID = .93328 au   Jupiter MOID = 2.12816 au   T_jup = 3.510  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.26   n/a E2021B10   diameter diameter 3.694 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.296   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   29227 Wegener           Discovered 1992 Feb. 29 by F. Borngen at Tautenburg. German scientist Alfred Wegener (1880-1930) created the theory of continental drift, which explained even the climates of prehistoric times and was verified later by geotectonics. A participant in several polar expeditions, he perished on the Greenland ice sheet. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020526/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  1992 DY13 = 1930 MP = 1996 FH17 = 1998 YV25  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-22 15:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin