+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   150995 (2001 UX23) Classification: Main-belt Asteroid          SPK-ID: 2150995 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1137664229826295 3.4409e-08   a 2.567920635794356 1.3261e-08 au q 2.275777490556753 8.6649e-08 au i 9.574674554444446 5.7219e-06 deg node 337.4143159215903 2.2428e-05 deg peri 92.91683922328551 3.6412e-05 deg M 205.0146659892952 2.8129e-05 deg tp 2459847.581413686423 (2022-Sep-25.08141369) 0.00011946 TDB period 1503.040983936084 4.12 1.1642e-05 3.187e-08 d yr n .2395144269833887 1.8553e-09 deg/d Q 2.86006378103196 1.4769e-08 au   Orbit Determination Parameters    # obs. used (total)      750      data-arc span      6851 days (18.76 yr)      first obs. used      2001-08-22      last obs. used      2020-05-25      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53697      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:20:55   Additional Information  Earth MOID = 1.31365 au   Jupiter MOID = 2.40022 au   T_jup = 3.403  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.75   n/a E2021B55   150995 (2001 UX23)          Discovered 2001-Oct-18 by LINEAR at Socorro Reference: 20070303/Numbers.arc Last Updated: 2007-03-07 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 16:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin