+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   7066 Nessus (1993 HA2) Classification: Centaur          SPK-ID: 2007066 [ 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 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5181444904857047 1.7107e-05   a 24.48156203361101 0.0010388 AU q 11.79657554741146 8.7813e-05 AU i 15.64246843558265 5.0041e-05 deg node 31.34371438181553 0.00013155 deg peri 170.2501922484482 0.0012273 deg M 63.14068181940151 0.0043192 deg tp 2448640.461430572706 (1992-Jan-18.96143057) 0.03864 JED period 44244.27808657935 121.13 2.8161 0.00771 d yr n .008136645360006429 5.1788e-07 deg/d Q 37.16654851981055 0.0015771 AU   Orbit Determination Parameters    # obs. used (total)      106      data-arc span      4048 days (11.08 yr)      first obs. used      1993-04-26      last obs. used      2004-05-26      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      2      fit RMS      .5471      data source      ORB      producer      Otto Matic      solution date      2011-Sep-14 18:59:22   Additional Information  Earth MOID = 10.7951 AU   T_jup = 3.786  [ 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 9.6 mag n/a PDS3 (MPC 27439)   7066 Nessus (1993 HA2)          Discovered 1993-Apr-26 by Spacewatch at Kitt Peak Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 00:08 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin