+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   23698 (1997 NA3) Classification: Main-belt Asteroid          SPK-ID: 2023698 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO229217 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0880259 n/a   a 3.0608076 n/a AU q 2.7913773 n/a AU i 2.32040 n/a deg node 268.57594 n/a deg peri 12.39916 n/a deg M 347.70688 n/a deg tp 2456467.2901001 (2013-Jun-23.79010010) n/a JED period 1955.9262446 5.36 n/a n/a d yr n 0.18405602 n/a deg/d Q 3.3302379 n/a AU   Orbit Determination Parameters    # obs. used (total)      564      first obs. used      1992-??-??      last obs. used      2012-04-30      # oppositions      13      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.227  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.4 mag n/a PDS3 (MPO 11168)   23698 (1997 NA3)          Discovered 1997-Jul-04 by Beijing Schmidt CCD Asteroid Program at Xinglong (327) Reference: 20010408/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1997 NA3 = 1998 SO122  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 21:58 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin