+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   29423 (1997 AF22) Classification: Main-belt Asteroid          SPK-ID: 2029423 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO247602 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2576488 n/a   a 3.1950755 n/a AU q 2.3718681 n/a AU i 16.12913 n/a deg node 334.81470 n/a deg peri 73.42952 n/a deg M 349.41670 n/a deg tp 2456461.8251643 (2013-Jun-18.32516430) n/a JED period 2086.0279068 5.71 n/a n/a d yr n 0.17257679 n/a deg/d Q 4.0182829 n/a AU   Orbit Determination Parameters    # obs. used (total)      579      first obs. used      1972-??-??      last obs. used      2012-12-13      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.57      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.083  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.6 mag n/a PDS3 (MPO 16279)   29423 (1997 AF22)          Discovered 1997-Jan-09 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20011002/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1997 AF22 = 1972 RD1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 19:59 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin