+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   80451 Alwoods (2000 AA) Classification: Main-belt Asteroid          SPK-ID: 2080451 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08996597195600121 4.2677e-08   a 2.291644501751633 8.8022e-09 au q 2.085474476773922 9.9424e-08 au i 5.705909058414026 4.7341e-06 deg node 114.5511800008456 4.569e-05 deg peri 351.3642490632332 5.4831e-05 deg M 315.1143439750361 3.0312e-05 deg tp 2459158.488099202703 (2020-Nov-04.98809920) 0.0001071 TDB period 1267.124528186481 3.47 7.3005e-06 1.999e-08 d yr n .2841078299661952 1.6369e-09 deg/d Q 2.497814526729345 9.5941e-09 au   Orbit Determination Parameters    # obs. used (total)      751      data-arc span      9160 days (25.08 yr)      first obs. used      1995-10-19      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59359      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:08:52   Additional Information  Earth MOID = 1.10247 au   Jupiter MOID = 2.5876 au   T_jup = 3.586  [ 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 15.9   n/a MPO244802   80451 Alwoods           Discovered 2000 Jan. 1 by J. M. Roe at Oaxaca. A. L. (Al) Woods (1911-2004) was an amateur astronomer with a long history in the Mid-States Region of the Astronomical League and with the St. Louis Astronomical Society. He was particularly noted for his telescope-making activities, especially with multi-mirror, tilted-component systems. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050125/MPCPages.arc Last Updated: 2005-06-01 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-19 17:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin