+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   30829 Wolfwacker (1990 TE9) Classification: Main-belt Asteroid          SPK-ID: 2030829 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1489827409507454 8.6399e-08   a 2.302267974748846 1.8606e-08 AU q 1.959269781467641 1.9984e-07 AU i 4.366287082994381 8.7949e-06 deg node 325.8018202294272 9.719e-05 deg peri 345.1596637458948 0.00010425 deg M 213.6777799864677 4.5399e-05 deg tp 2456919.108960634976 (2014-Sep-18.60896064) 0.00016183 JED period 1275.945825666977 3.49 1.5468e-05 4.235e-08 d yr n .2821436402378735 3.4203e-09 deg/d Q 2.64526616803005 2.1378e-08 AU   Orbit Determination Parameters    # obs. used (total)      713      data-arc span      8243 days (22.57 yr)      first obs. used      1990-09-16      last obs. used      2013-04-11      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .59054      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:56:02   Additional Information  Earth MOID = .945271 AU   T_jup = 3.572  [ 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 14.3 mag n/a PDS3 (MPO 18552)   30829 Wolfwacker           Discovered 1990 Oct. 10 by L. D. Schmadel and F. Börngen at Tautenburg. Wolfgang Wacker (b. 1944) is a German astronomer who worked at the Heidelberg Max-Planck-Institut and as a teacher. For 25 years he served as scientific head and later as manager and director of the Mannheim planetarium. 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: 20090607/MPCPages.arc Last Updated: 2009-06-08 Alternate Designations  1990 TE9 = 1997 UP9  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 09:58 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin