+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   65407 (2002 RP120) Classification: TransNeptunian Object          SPK-ID: 2065407 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 3 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .9545377614517818 3.6713e-06   a 54.71833208197724 0.0044335 AU q 2.487617866071469 1.1142e-06 AU i 119.2536681465354 3.3517e-05 deg node 39.04169622482292 1.0904e-05 deg peri 357.9719741511429 7.5914e-05 deg M 9.370198332885952 0.001139 deg tp 2452552.420944084412 (2002-Oct-04.92094408) 0.00022297 JED period 147841.9571192734 404.77 17.968 0.04919 d yr n .002435032699882114 2.9594e-07 deg/d Q 106.949046297883 0.0086653 AU   Orbit Determination Parameters    # obs. used (total)      542      data-arc span      1225 days (3.35 yr)      first obs. used      2001-02-13      last obs. used      2004-06-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      2      fit RMS      .50047      data source      ORB      producer      Otto Matic      solution date      2012-Feb-09 13:13:01   Additional Information  Earth MOID = 1.49546 AU   T_jup = -0.850  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.113 mag .51881 3 autocmod 2.5b diameter diameter 14.6 km 2.8 Fernandez et al. (2005) Astron.J. 130:308-318   rotation period rot_per 200. 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: [Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.098   0.036 Fernandez et al. (2005) Astron.J. 130:308-318   65407 (2002 RP120)          Discovered 2002-Sep-04 by LONEOS at Anderson Mesa (699) Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 09:49 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin