+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   14389 (1990 QR5) Classification: Main-belt Asteroid          SPK-ID: 2014389 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO236472 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1698086 n/a   a 3.1918161 n/a AU q 2.6498183 n/a AU i 2.60901 n/a deg node 125.73027 n/a deg peri 171.14950 n/a deg M 21.66932 n/a deg tp 2456275.1287416 (2012-Dec-13.62874160) n/a JED period 2082.8366106 5.70 n/a n/a d yr n 0.17284121 n/a deg/d Q 3.7338139 n/a AU   Orbit Determination Parameters    # obs. used (total)      833      first obs. used      1972-??-??      last obs. used      2012-08-16      # oppositions      15      planetary ephem.      DE403      condition code      0      fit RMS      0.58      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.172  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.1 mag n/a PDS3 (MPC 39815)   14389 (1990 QR5)          Discovered 1990-Aug-26 by Holt, H. E. at Palomar (675) Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 QR5 = 1972 HO = 1993 BO15  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 13:57 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin