+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   16585 (1992 QR) Classification: Inner Main-belt Asteroid          SPK-ID: 2016585 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO244333 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1045700 n/a   a 1.9236673 n/a AU q 1.7225094 n/a AU i 22.99302 n/a deg node 150.40438 n/a deg peri 239.94105 n/a deg M 230.68033 n/a deg tp 2456750.5704636 (2014-Apr-03.07046360) n/a JED period 974.5258932 2.67 n/a n/a d yr n 0.36941040 n/a deg/d Q 2.1248252 n/a AU   Orbit Determination Parameters    # obs. used (total)      496      first obs. used      1976-??-??      last obs. used      2012-05-01      # oppositions      14      planetary ephem.      DE403      condition code      1      fit RMS      0.56      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.818  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.0 mag n/a PDS3 (MPO 2876)   rotation period rot_per 5.255 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Warner, B.D. (2007) Minor Planet Bul. 34, 72-77.] [Warner, B.D. (2012) Minor Planet Bul. 39, 158-167.] 16585 (1992 QR)          Discovered 1992-Aug-23 by Holt, H. E. at Palomar (675) Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1992 QR = 1991 CG3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 04:43 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin