+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   52439 (1994 QL) Classification: Mars-crossing Asteroid          SPK-ID: 2052439 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO233787 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1426265 n/a   a 1.9264780 n/a AU q 1.6517112 n/a AU i 26.55920 n/a deg node 45.84006 n/a deg peri 287.16613 n/a deg M 348.55413 n/a deg tp 2456431.5520885 (2013-May-19.05208850) n/a JED period 976.6624871 2.67 n/a n/a d yr n 0.36860226 n/a deg/d Q 2.2012448 n/a AU   Orbit Determination Parameters    # obs. used (total)      476      first obs. used      1994-??-??      last obs. used      2012-06-12      # oppositions      10      planetary ephem.      DE403      condition code      0      fit RMS      0.51      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.778  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.7 mag n/a MPO233787   52439 (1994 QL)          Discovered 1994-Aug-16 by McNaught, R. H. at Siding Spring (413) Reference: 20030216/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1994 QL = 1999 JW4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 13:58 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin