+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (1999 LX1) Classification: Apollo [NEO, PHA]          SPK-ID: 3019647 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2451340.5 (1999-Jun-11.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .7267641884479905 0.0022786   a 1.164488520677936 0.0048073 au q .3181799659904349 0.0013399 au i 19.80369423949089 0.1296 deg node 251.9948600700529 0.0066061 deg peri 133.355998537982 0.0058788 deg M 321.1059929886226 0.35136 deg tp 2451390.088552553110 (1999-Jul-30.58855255) 0.1409 TDB period 458.9879081858932 1.26 2.8422 0.007782 d yr n .7843343878553716 0.0048569 deg/d Q 2.010797075365438 0.0083011 au   Orbit Determination Parameters    # obs. used (total)      45      data-arc span      6 days      first obs. used      1999-06-08      last obs. used      1999-06-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      9      norm. resid. RMS      .71909      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 09:17:26   Additional Information  Earth MOID = .0242275 au   Jupiter MOID = 3.55692 au   T_jup = 5.080  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 20.6   n/a MPC35122   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-18 17:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin