+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20081 Occhialini (1994 EE3) Classification: Main-belt Asteroid          SPK-ID: 2020081 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0884902469154699 2.9464e-08   a 2.45373912786574 9.0803e-09 au q 2.236607146574751 7.4145e-08 au i 7.640703648845955 3.0451e-06 deg node 135.6213269030056 2.8159e-05 deg peri 6.463012022315714 3.6413e-05 deg M 27.6563081262777 2.2721e-05 deg tp 2459092.646879815047 (2020-Aug-31.14687982) 8.8543e-05 TDB period 1403.915630723369 3.84 7.793e-06 2.134e-08 d yr n .2564256655611916 1.4234e-09 deg/d Q 2.670871109156729 9.8838e-09 au   Orbit Determination Parameters    # obs. used (total)      1757      data-arc span      13215 days (36.18 yr)      first obs. used      1984-11-13      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48028      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:46:05   Additional Information  Earth MOID = 1.24952 au   Jupiter MOID = 2.33464 au   T_jup = 3.476  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.27   n/a E2021B10   20081 Occhialini           Discovered 1994 Mar. 12 by V. Goretti and M. Tombelli at Cima Ekar. Giuseppe Occhialini (b. 1907) is a distinguished Italian physicist. He collaborated with P. M. S. Blackett at the Cavendish Laboratory of Cambridge on very important research work in cosmic radiation. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010705/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1994 EE3 = 1998 HA121 = 1999 RZ129  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-25 20:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin