+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   14386 (1990 QN2) Classification: Main-belt Asteroid          SPK-ID: 2014386 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO256970 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1371981 n/a   a 2.3584582 n/a AU q 2.0348822 n/a AU i 7.09410 n/a deg node 346.43318 n/a deg peri 336.56497 n/a deg M 108.26714 n/a deg tp 2456002.6358011 (2012-Mar-16.13580110) n/a JED period 1322.9416755 3.62 n/a n/a d yr n 0.27212084 n/a deg/d Q 2.6820342 n/a AU   Orbit Determination Parameters    # obs. used (total)      714      first obs. used      1954-??-??      last obs. used      2013-03-07      # oppositions      13      planetary ephem.      DE403      condition code      0      fit RMS      0.56      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.530  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.1 mag n/a PDS3 (MPC 39814)   14386 (1990 QN2)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar (675) Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 QN2 = 1978 EC9  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 04:34 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin