+ View the NASA Portal + Near-Earth Object (NEO) Project Search JPL JPL Small-Body Database Browser Search: [ help ]   18796 Acosta (1999 JH64) Classification: Main-belt Asteroid          SPK-ID: 2018796 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB Reference: MPO150780 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1563794 n/a   a 2.2856652 n/a AU q 1.9282342 n/a AU i 5.74774 n/a deg node 63.75338 n/a deg peri 161.38500 n/a deg M 42.56824 n/a deg tp 2455051.2547417 (2009-Aug-07.75474170) n/a JED period 1262.1685318 3.46 n/a n/a d yr n 0.28522340 n/a deg/d Q 2.6430962 n/a AU   Orbit Determination Parameters    # obs. used (total)      303      first obs. used      1985-??-??      last obs. used      2008-12-31      # oppositions      10      planetary ephem.      DE403      quality code      0      fit RMS      0.59      data source      MPC:mpn      producer      MPC   Additional Information  T_jup = 3.579  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.8 mag n/a PDS3 (MPO 5298)   18796 Acosta           Discovered 1999 May 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Iyen Abdon Acosta (b. 1986) was awarded third place in the 2003 Intel International Science and Engineering Fair for her environmental science project. She attends the Oxon Hill High School, Oxon Hill, Maryland, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040830/MPCPages.arc Last Updated: 2004-09-06 Alternate Designations  1999 JH64 = 1985 HM1 = 1993 TL31  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2010-Feb-10 08:02 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin