+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   16472 (1990 OE5) Classification: Main-belt Asteroid          SPK-ID: 2016472 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO233615 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1797823 n/a   a 2.7781703 n/a AU q 2.2787045 n/a AU i 7.16421 n/a deg node 244.96337 n/a deg peri 23.58219 n/a deg M 349.97822 n/a deg tp 2456447.5846218 (2013-Jun-04.08462180) n/a JED period 1691.3625965 4.63 n/a n/a d yr n 0.21284614 n/a deg/d Q 3.2776361 n/a AU   Orbit Determination Parameters    # obs. used (total)      781      first obs. used      1981-??-??      last obs. used      2012-06-11      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.299  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.8 mag n/a PDS3 (MPO 2844)   16472 (1990 OE5)          Discovered 1990-Jul-27 by Holt, H. E. at Palomar (675) Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 OE5 = 1989 EZ4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 15:13 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin