+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   11880 (1990 QQ4) Classification: Main-belt Asteroid          SPK-ID: 2011880 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO244292 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0652199 n/a   a 2.7086167 n/a AU q 2.5319610 n/a AU i 7.62204 n/a deg node 25.58541 n/a deg peri 318.36597 n/a deg M 22.61553 n/a deg tp 2456298.2121529 (2013-Jan-05.71215290) n/a JED period 1628.2450585 4.46 n/a n/a d yr n 0.22109694 n/a deg/d Q 2.8852724 n/a AU   Orbit Determination Parameters    # obs. used (total)      747      first obs. used      1990-??-??      last obs. used      2012-11-11      # oppositions      14      planetary ephem.      DE403      condition code      0      fit RMS      0.57      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.348  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.3 mag n/a PDS3 (MPC 36241)   11880 (1990 QQ4)          Discovered 1990-Aug-24 by Holt, H. E. at Palomar (675) Reference: 19991026/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 QQ4 = 1986 UL = 1998 KB25  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-19 21:44 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin