+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   73465 Buonanno (2002 NP55) Classification: Main-belt Asteroid          SPK-ID: 2073465 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO257333 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1297931 n/a   a 2.7501688 n/a AU q 2.3932159 n/a AU i 13.56745 n/a deg node 91.33837 n/a deg peri 302.34667 n/a deg M 41.55345 n/a deg tp 2456208.2164857 (2012-Oct-07.71648570) n/a JED period 1665.8560272 4.56 n/a n/a d yr n 0.21610511 n/a deg/d Q 3.1071217 n/a AU   Orbit Determination Parameters    # obs. used (total)      396      first obs. used      1998-??-??      last obs. used      2013-03-12      # oppositions      11      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.293  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.3 mag n/a MPO257333   73465 Buonanno           Discovered 2002 July 10 by the Campo Imperatore Near Earth Object Survey. Roberto Buonanno (b. 1947) is an expert in stellar evolution and director of the Osservatorio Astron{o}mico di Roma. He created the Planetary Sciences team at the OAR and supported research programs devoted to near-earth objects and to the study of the physical properties of the small bodies of the solar system. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050721/MPCPages.arc Last Updated: 2005-07-21 Alternate Designations  2002 NP55 = 2001 GE9 = 2002 MC4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 09:49 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin