+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   14864 (1990 QK4) Classification: Main-belt Asteroid          SPK-ID: 2014864 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253467 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2195279 n/a   a 2.3824576 n/a AU q 1.8594417 n/a AU i 2.65825 n/a deg node 157.21147 n/a deg peri 203.85081 n/a deg M 42.58136 n/a deg tp 2456241.6258586 (2012-Nov-10.12585860) n/a JED period 1343.1861009 3.68 n/a n/a d yr n 0.26801945 n/a deg/d Q 2.9054735 n/a AU   Orbit Determination Parameters    # obs. used (total)      648      first obs. used      1990-??-??      last obs. used      2013-02-06      # oppositions      14      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.503  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.6 mag n/a PDS3 (MPO 23)   14864 (1990 QK4)          Discovered 1990-Aug-23 by Holt, H. E. at Palomar (675) Reference: 20000523/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 QK4 = 1996 FO13  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 05:12 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin