+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   5987 Liviogratton (1975 LQ) Classification: Main-belt Asteroid          SPK-ID: 2005987 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ 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 .1569714544841668 5.3877e-08   a 2.432097256101843 1.5951e-08 AU q 2.050327412364586 1.2902e-07 AU i 5.416102387198639 7.0543e-06 deg node 163.7105801890785 5.6217e-05 deg peri 144.091207811996 6.1614e-05 deg M 306.2939843130935 2.8003e-05 deg tp 2456607.176104448060 (2013-Nov-10.67610445) 0.00010896 JED period 1385.382934289077 3.79 1.3629e-05 3.731e-08 d yr n .2598559510802243 2.5564e-09 deg/d Q 2.813867099839101 1.8455e-08 AU   Orbit Determination Parameters    # obs. used (total)      1134      data-arc span      13811 days (37.81 yr)      first obs. used      1975-06-06      last obs. used      2013-03-29      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .53477      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:19:31   Additional Information  Earth MOID = 1.03863 AU   T_jup = 3.484  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.0 mag n/a PDS3 (MPC 28114)   5987 Liviogratton           Discovered 1975 June 6 by the Félix Aguilar Observatory team at the El Leoncito Station. Born in Italy, Livio Gratton (1910-1991) spent many years in Argentina, where he was at various times in charge of the astrophysics department of La Plata Observatory, director of Córdoba Observatory and the first director of the Institute of Mathematics, Astronomy and Physics of the Córdoba National University. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070926/MPCPages.arc Last Updated: 2007-09-30 [ show close-approach data ] Alternate Designations  1975 LQ = 1987 SO11 = 1987 WH3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-18 20:05 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin