+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   144897 (2004 UX10) Classification: TransNeptunian Object          SPK-ID: 2144897 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO157314 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0399820 n/a   a 39.1666850 n/a AU q 37.6007226 n/a AU i 9.53472 n/a deg node 148.00259 n/a deg peri 158.76006 n/a deg M 84.05871 n/a deg tp 2435495.3134147 (1956-Jan-22.81341470) n/a JED period 89531.0809635 245.12 n/a n/a d yr n 0.00402095 n/a deg/d Q 40.7326474 n/a AU   Orbit Determination Parameters    # obs. used (total)      82      first obs. used      1953-??-??      last obs. used      2008-08-23      # oppositions      15      planetary ephem.      DE403      condition code      2      fit RMS      0.56      data source      MPC:mpu      producer      MPCALB   Additional Information  T_jup = 5.540   MPC Plutino   MPC critical-list numbered object  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 4.5 mag n/a MPO157314   rotation period rot_per 5.68 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Thirouin, A.; Ortiz, J.L.; Duffard, R.; Santos-Sanz, P.; et al. (2010) Astron. Astrophys. 522, A93.] 144897 (2004 UX10)          Discovered 2004-Oct-20 by Becker, A. C., Puckett, A. W., Kubica, J. at Apache Point (705) Reference: 20061205/Numbers.arc Last Updated: 2006-12-13 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-19 20:14 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin