+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   180215 (2003 UK9) Classification: Main-belt Asteroid          SPK-ID: 2180215 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1008622668364683 6.9634e-08   a 2.289943762844768 1.1526e-08 au q 2.058974843996213 1.6339e-07 au i 7.855434935767345 5.6787e-06 deg node 51.35182564296979 3.7939e-05 deg peri 346.8226252415437 4.4516e-05 deg M 354.3597684745187 2.327e-05 deg tp 2459220.330336471865 (2021-Jan-05.83033647) 8.1814e-05 TDB period 1265.714199429477 3.47 9.5565e-06 2.616e-08 d yr n .2844243986219565 2.1475e-09 deg/d Q 2.520912681693324 1.2689e-08 au   Orbit Determination Parameters    # obs. used (total)      417      data-arc span      6329 days (17.33 yr)      first obs. used      2003-10-16      last obs. used      2021-02-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51892      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:25:36   Additional Information  Earth MOID = 1.06667 au   Jupiter MOID = 2.84513 au   T_jup = 3.580  [ 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 16.8   n/a MPO232183   180215 (2003 UK9)          Discovered 2003-Oct-16 by Spacewatch at Kitt Peak Reference: 20080321/Numbers.arc Last Updated: 2008-03-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-21 09:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin