+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   11683 (1998 FO11) Classification: Main-belt Asteroid          SPK-ID: 2011683 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250328 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0502389 n/a   a 2.6200227 n/a AU q 2.4883956 n/a AU i 12.96815 n/a deg node 179.26502 n/a deg peri 18.75412 n/a deg M 190.51989 n/a deg tp 2457129.7429548 (2015-Apr-17.24295480) n/a JED period 1549.0163639 4.24 n/a n/a d yr n 0.23240555 n/a deg/d Q 2.7516498 n/a AU   Orbit Determination Parameters    # obs. used (total)      822      first obs. used      1954-??-??      last obs. used      2013-01-01      # oppositions      15      planetary ephem.      DE403      condition code      0      fit RMS      0.49      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.367  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.5 mag n/a PDS3 (MPC 35880)   11683 (1998 FO11)          Discovered 1998-Mar-22 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905) Reference: 19990928/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1998 FO11 = 1991 RV37  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-19 15:30 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin