+ View the NASA Portal + Near-Earth Object (NEO) Project Search JPL JPL Small-Body Database Browser Search: [ help ]   24289 Anthonypalma (1999 XO190) Classification: Main-belt Asteroid          SPK-ID: 2024289 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB Reference: MPO101881 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1227711 n/a   a 2.4421497 n/a AU q 2.1423243 n/a AU i 5.13847 n/a deg node 13.07176 n/a deg peri 294.19162 n/a deg M 355.76134 n/a deg tp 2455216.9128098 (2010-Jan-20.41280980) n/a JED period 1393.9810069 3.82 n/a n/a d yr n 0.25825316 n/a deg/d Q 2.7419751 n/a AU   Orbit Determination Parameters    # obs. used (total)      315      first obs. used      1983-??-??      last obs. used      2006-06-14      # oppositions      9      planetary ephem.      DE403      quality code      0      fit RMS      0.59      data source      MPC:mpn      producer      MPC   Additional Information  T_jup = 3.485  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.7 mag n/a PDS3 (MPO 11364)   24289 Anthonypalma           Discovered 1999 Dec. 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro. Anthony Palma mentored a finalist in the 2008 Intel Science Talent Search (STS), a science competition for high school seniors. He teaches at the Appleton High School East, Appleton, Wisconsin. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20080221/MPCPages.arc Last Updated: 2008-03-05 Alternate Designations  1999 XO190 = 1997 HT4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2010-Feb-10 06:22 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin