+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   58676 (1997 YN16) Classification: Main-belt Asteroid          SPK-ID: 2058676 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO257249 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1623490 n/a   a 2.4557490 n/a AU q 2.0570606 n/a AU i 3.05486 n/a deg node 130.66401 n/a deg peri 22.73671 n/a deg M 318.16191 n/a deg tp 2456563.8592522 (2013-Sep-28.35925220) n/a JED period 1405.6409072 3.85 n/a n/a d yr n 0.25611093 n/a deg/d Q 2.8544374 n/a AU   Orbit Determination Parameters    # obs. used (total)      645      first obs. used      1991-??-??      last obs. used      2013-03-15      # oppositions      11      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.473  [ 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 MPO257249   58676 (1997 YN16)          Discovered 1997-Dec-31 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905) Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1997 YN16 = 1983 GO1 = 2000 QP143  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-19 04:44 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin