+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   5814 (1988 XW1) Classification: Main-belt Asteroid          SPK-ID: 2005814 [ 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 .1007864745133116 8.9015e-08   a 3.025802431591113 3.3201e-08 AU q 2.720842471937239 2.6921e-07 AU i 10.66607191633078 1.0066e-05 deg node 69.34151094937062 4.1698e-05 deg peri 312.6753439508784 6.1578e-05 deg M 273.9764165323896 5.0456e-05 deg tp 2456859.882352389037 (2014-Jul-21.38235239) 0.00027311 JED period 1922.468702112617 5.26 3.1642e-05 8.663e-08 d yr n .1872592253930548 3.0821e-09 deg/d Q 3.330762391244987 3.6547e-08 AU   Orbit Determination Parameters    # obs. used (total)      903      data-arc span      22408 days (61.35 yr)      first obs. used      1951-12-01      last obs. used      2013-04-07      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .53294      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:18:41   Additional Information  Earth MOID = 1.73807 AU   T_jup = 3.211  [ 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 11.5 mag n/a PDS3 (MPC 28114)   5814 (1988 XW1)          Discovered 1988-Dec-11 by Ueda and Kaneda at Kushiro (399) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1988 XW1 = 1977 SN3 = 1982 SM  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 00:00 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin