+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   18459 (1995 FD1) Classification: Main-belt Asteroid          SPK-ID: 2018459 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1642060477780375 5.9939e-08   a 2.381598437378666 1.9645e-08 AU q 1.990525570582366 1.448e-07 AU i 1.823761078861253 7.2491e-06 deg node 347.3768868354175 0.00019392 deg peri 243.8670738543759 0.0001948 deg M 295.6209013931489 2.4187e-05 deg tp 2456640.573167658071 (2013-Dec-14.07316766) 9.1325e-05 JED period 1342.459621634224 3.68 1.661e-05 4.548e-08 d yr n .2681644901630331 3.3179e-09 deg/d Q 2.772671304174967 2.287e-08 AU   Orbit Determination Parameters    # obs. used (total)      916      data-arc span      6587 days (18.03 yr)      first obs. used      1995-03-27      last obs. used      2013-04-08      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .52369      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:19:03   Additional Information  Earth MOID = .981036 AU   T_jup = 3.519  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.7 mag n/a PDS3 (MPO 5198)   18459 (1995 FD1)          Discovered 1995-Mar-28 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20001111/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1995 FD1 = 1999 LQ22  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 22:13 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin