+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   48475 (1991 UD2) Classification: Main-belt Asteroid          SPK-ID: 2048475 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253675 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0555874 n/a   a 3.0457935 n/a AU q 2.8764858 n/a AU i 11.36008 n/a deg node 34.36682 n/a deg peri 100.74992 n/a deg M 283.66142 n/a deg tp 2456812.2093082 (2014-Jun-03.70930820) n/a JED period 1941.5523704 5.32 n/a n/a d yr n 0.18541864 n/a deg/d Q 3.2151012 n/a AU   Orbit Determination Parameters    # obs. used (total)      760      first obs. used      1991-??-??      last obs. used      2013-02-06      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.53      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.206  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.7 mag n/a MPO253675   48475 (1991 UD2)          Discovered 1991-Oct-29 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20021120/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 UD2 = 1999 FY26  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 11:03 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin