+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   2642 Vesale (1961 RA) Classification: Main-belt Asteroid          SPK-ID: 2002642 [ 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 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1838493349845038 7.4221e-08   a 2.426358482061936 1.1478e-08 AU q 1.980274088700839 1.8074e-07 AU i 14.47852565244749 8.418e-06 deg node 201.2329451068207 2.8435e-05 deg peri 165.0974482989738 3.5669e-05 deg M 225.89509118656 2.439e-05 deg tp 2456914.748519878125 (2014-Sep-14.24851988) 9.5611e-05 JED period 1380.482405857849 3.78 9.7956e-06 2.682e-08 d yr n .260778405050582 1.8504e-09 deg/d Q 2.872442875423033 1.3588e-08 AU   Orbit Determination Parameters    # obs. used (total)      887      data-arc span      18848 days (51.60 yr)      first obs. used      1961-09-14      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .51716      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:53:21   Additional Information  Earth MOID = .982638 AU   T_jup = 3.444  [ 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 12.7 mag n/a PDS3 (MPC 17266)   rotation period rot_per 5.566 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Warner, B.D (2011) Minor Planet Bul. 38, 25-31.] 2642 Vesale (1961 RA)          Discovered 1961-Sep-14 by Arend, S. at Uccle (012) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1961 RA = 1961 TC  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 06:03 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin