+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   7312 (1996 AT3) Classification: Main-belt Asteroid          SPK-ID: 2007312 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO244247 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1360978 n/a   a 2.7625686 n/a AU q 2.3865891 n/a AU i 3.20385 n/a deg node 149.46463 n/a deg peri 294.03392 n/a deg M 303.77955 n/a deg tp 2456662.4146938 (2014-Jan-04.91469380) n/a JED period 1677.1350955 4.59 n/a n/a d yr n 0.21465176 n/a deg/d Q 3.1385481 n/a AU   Orbit Determination Parameters    # obs. used (total)      754      first obs. used      1978-??-??      last obs. used      2012-11-12      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.56      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.325  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.0 mag n/a PDS3 (MPC 28292)   7312 (1996 AT3)          Discovered 1996-Jan-13 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1996 AT3 = 1978 EC10 = 1990 WM5  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 02:47 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin