+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   65684 (1990 QY5) Classification: Main-belt Asteroid          SPK-ID: 2065684 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253777 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1861417 n/a   a 2.6833459 n/a AU q 2.1838633 n/a AU i 12.52706 n/a deg node 332.53194 n/a deg peri 26.41694 n/a deg M 40.08180 n/a deg tp 2456221.7450287 (2012-Oct-21.24502870) n/a JED period 1605.5114711 4.40 n/a n/a d yr n 0.22422761 n/a deg/d Q 3.1828285 n/a AU   Orbit Determination Parameters    # obs. used (total)      523      first obs. used      1990-??-??      last obs. used      2013-02-02      # oppositions      11      planetary ephem.      DE403      condition code      0      fit RMS      0.57      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.317  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.7 mag n/a MPO253777   65684 (1990 QY5)          Discovered 1990-Aug-29 by Holt, H. E. at Palomar (675) Reference: 20030910/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 QY5 = 1999 RB110  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 03:59 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin