+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190180 (2005 UC478) Classification: Main-belt Asteroid          SPK-ID: 2190180 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1791466388634533 7.0865e-08   a 2.242362713659958 1.495e-08 au q 1.840650970395044 1.5963e-07 au i 4.730519242137411 5.5071e-06 deg node 126.4893016568031 7.9102e-05 deg peri 251.4892954432385 8.0179e-05 deg M 197.5018628376615 1.5704e-05 deg tp 2459754.108956579791 (2022-Jun-23.60895658) 5.6667e-05 TDB period 1226.470825137037 3.36 1.2265e-05 3.358e-08 d yr n .2935251231595958 2.9354e-09 deg/d Q 2.644074456924871 1.7628e-08 au   Orbit Determination Parameters    # obs. used (total)      227      data-arc span      6258 days (17.13 yr)      first obs. used      2003-01-08      last obs. used      2020-02-26      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .59271      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 22:06:33   Additional Information  Earth MOID = .847389 au   Jupiter MOID = 2.82628 au   T_jup = 3.608  [ 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 17.65   n/a E2021B55   190180 (2005 UC478)          Discovered 2005-Oct-27 by LONEOS at Anderson Mesa Reference: 20080819/Numbers.arc Last Updated: 2008-08-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 00:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin