+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9752 (1990 QZ1) Classification: Main-belt Asteroid          SPK-ID: 2009752 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO247453 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0826085 n/a   a 2.4000335 n/a AU q 2.2017703 n/a AU i 7.17772 n/a deg node 345.85296 n/a deg peri 120.31001 n/a deg M 278.16162 n/a deg tp 2456709.2300584 (2014-Feb-20.73005840) n/a JED period 1358.0769932 3.72 n/a n/a d yr n 0.26508070 n/a deg/d Q 2.5982967 n/a AU   Orbit Determination Parameters    # obs. used (total)      809      first obs. used      1990-??-??      last obs. used      2012-12-08      # oppositions      15      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.511  [ 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 (MPC 33200)   9752 (1990 QZ1)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar (675) Reference: 19981208/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 QZ1 = 1992 BD1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-18 19:23 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin