+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   32804 (1990 SO2) Classification: Main-belt Asteroid          SPK-ID: 2032804 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO257093 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2216510 n/a   a 2.3038635 n/a AU q 1.7932099 n/a AU i 6.89834 n/a deg node 111.84249 n/a deg peri 194.64606 n/a deg M 205.75053 n/a deg tp 2456947.7738943 (2014-Oct-17.27389430) n/a JED period 1277.2724726 3.50 n/a n/a d yr n 0.28185059 n/a deg/d Q 2.8145171 n/a AU   Orbit Determination Parameters    # obs. used (total)      674      first obs. used      1990-??-??      last obs. used      2013-03-15      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.53      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.547  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.4 mag n/a PDS3 (MPO 21194)   32804 (1990 SO2)          Discovered 1990-Sep-17 by Holt, H. E. at Palomar (675) Reference: 20020128/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 SO2 = 2000 KQ50  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 16:04 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin