+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   18431 Stazzema (1994 BM) Classification: Main-belt Asteroid          SPK-ID: 2018431 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1158758028133605 3.2788e-08   a 2.403433813698185 7.711e-09 au q 2.124933991027131 7.8022e-08 au i 6.024207005079893 4.6834e-06 deg node 316.3576673101016 3.1448e-05 deg peri 112.269251056629 3.7159e-05 deg M 132.629675746975 1.9461e-05 deg tp 2458699.099359544211 (2019-Aug-03.59935954) 7.3285e-05 TDB period 1360.964124714003 3.73 6.5497e-06 1.793e-08 d yr n .2645183612577969 1.273e-09 deg/d Q 2.681933636369239 8.6046e-09 au   Orbit Determination Parameters    # obs. used (total)      1781      data-arc span      9700 days (26.56 yr)      first obs. used      1993-11-20      last obs. used      2020-06-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5214      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:29:12   Additional Information  Earth MOID = 1.14737 au   Jupiter MOID = 2.56178 au   T_jup = 3.508  [ 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 14.3   n/a MPO502309   18431 Stazzema           Discovered 1994 Jan. 16 by M. Tombelli and A. Boattini at Cima Ekar. Stazzema, a pleasant village located in the Alpi Apuane mountains of Tuscany, Italy. Since 2000, it has been the site of the Italian Park of Peace. Name proposed by Mario Di Martino. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20110517/MPCPages.arc Last Updated: 2011-06-24 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-17 21:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin