+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08858244059205185 2.9635e-08   a 2.453977705769544 9.1165e-09 au q 2.236598371433993 7.4661e-08 au i 7.640431175609096 3.0495e-06 deg node 135.621437622551 2.8247e-05 deg peri 6.523807585063976 3.6461e-05 deg M 336.3239022481646 2.2686e-05 deg tp 2459092.844698946973 (2020-Aug-31.34469895) 8.8534e-05 TDB period 1404.12039050367 3.84 7.8244e-06 2.142e-08 d yr n .2563882715718307 1.4287e-09 deg/d Q 2.671357040105094 9.924e-09 au   Orbit Determination Parameters    # obs. used (total)      1700      data-arc span      12947 days (35.45 yr)      first obs. used      1984-11-13      last obs. used      2020-04-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47564      source      ORB      producer      Otto Matic      solution date      2020-May-20 05:08:57   Additional Information  Earth MOID = 1.24962 au   Jupiter MOID = 2.33489 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 14.2   n/a MPO416922   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 ] 2020-Dec-05 13:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin