+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   90881 (1996 XN6) Classification: Main-belt Asteroid          SPK-ID: 2090881 [ 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 .2114478189498555 3.2451e-07   a 2.543844132319248 3.9252e-08 AU q 2.005953838791956 8.5344e-07 AU i 4.436002997180367 1.5909e-05 deg node 243.5401152902554 0.00011219 deg peri 177.8046520488865 0.00012422 deg M 20.63267844034862 4.8313e-05 deg tp 2456315.564884423558 (2013-Jan-23.06488442) 0.0001974 JED period 1481.952122499254 4.06 3.43e-05 9.391e-08 d yr n .2429228276233878 5.6224e-09 deg/d Q 3.081734425846542 4.7551e-08 AU   Orbit Determination Parameters    # obs. used (total)      463      data-arc span      5968 days (16.34 yr)      first obs. used      1996-12-03      last obs. used      2013-04-06      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .5229      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 17:52:53   Additional Information  Earth MOID = 1.01811 AU   T_jup = 3.408  [ 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 15.5 mag n/a MPC30252   90881 (1996 XN6)          Discovered 1996-Dec-03 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905) Reference: 20041028/Numbers.arc Last Updated: 2004-10-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 21:04 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin