+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   79997 (1999 FW22) Classification: Main-belt Asteroid          SPK-ID: 2079997 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO233884 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1794841 n/a   a 2.6278538 n/a AU q 2.1561958 n/a AU i 13.84111 n/a deg node 344.04297 n/a deg peri 355.26817 n/a deg M 291.90779 n/a deg tp 2456694.8033130 (2014-Feb-06.30331300) n/a JED period 1555.9664267 4.26 n/a n/a d yr n 0.23136746 n/a deg/d Q 3.0995118 n/a AU   Orbit Determination Parameters    # obs. used (total)      733      first obs. used      1995-??-??      last obs. used      2012-06-24      # oppositions      11      planetary ephem.      DE403      condition code      0      fit RMS      0.55      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.338  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.1 mag n/a MPO233884   79997 (1999 FW22)          Discovered 1999-Mar-19 by LINEAR at Socorro (704) Reference: 20040504/Numbers.arc Last Updated: 2004-07-16 Alternate Designations  1999 FW22 = 1995 FC21  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 03:19 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin