+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   52455 Masamika (1995 AD1) Classification: Main-belt Asteroid          SPK-ID: 2052455 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO235055 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2034509 n/a   a 2.5269400 n/a AU q 2.0128318 n/a AU i 18.96848 n/a deg node 281.23852 n/a deg peri 178.00396 n/a deg M 208.25807 n/a deg tp 2457018.9348125 (2014-Dec-27.43481250) n/a JED period 1467.2050929 4.02 n/a n/a d yr n 0.24536447 n/a deg/d Q 3.0410482 n/a AU   Orbit Determination Parameters    # obs. used (total)      376      first obs. used      1994-??-??      last obs. used      2012-07-18      # oppositions      9      planetary ephem.      DE403      condition code      1      fit RMS      0.51      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.350  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.5 mag n/a MPO235055   52455 Masamika           Discovered 1995 Jan. 6 by T. Seki at Geisei. Masa-aki Takanashi (1959-2001) was an active member of the Gotemba Astronomical Circle and the Nippon Meteor Society. With his wife Mika he was devoted to the popularization of astronomy and meteor observations. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040107/MPCPages.arc Last Updated: 2004-01-07 Alternate Designations  1995 AD1 = 1998 XZ23  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 20:58 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin