+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9904 Mauratombelli (1997 OC1) Classification: Main-belt Asteroid          SPK-ID: 2009904 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO256937 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1895190 n/a   a 2.7318305 n/a AU q 2.2140967 n/a AU i 8.47077 n/a deg node 154.19588 n/a deg peri 265.03186 n/a deg M 85.67390 n/a deg tp 2456008.0131761 (2012-Mar-21.51317610) n/a JED period 1649.2217185 4.52 n/a n/a d yr n 0.21828478 n/a deg/d Q 3.2495643 n/a AU   Orbit Determination Parameters    # obs. used (total)      600      first obs. used      1989-??-??      last obs. used      2013-03-18      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.57      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.312  [ 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 PDS3 (MPC 33469)   9904 Mauratombelli (1997 OC1)          Discovered 1997-Jul-29 by Boattini, A., Tesi, L. at San Marcello (104) Reference: 19990106/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1997 OC1 = 1996 MC1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 18:28 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin