+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305074 (2007 UK104) Classification: Main-belt Asteroid          SPK-ID: 2305074 [ 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 .04776978771885464 4.2332e-08   a 2.563832830119897 1.6222e-08 au q 2.44135908007844 1.0788e-07 au i 14.15200192699819 5.3948e-06 deg node 229.78088312 1.6328e-05 deg peri 253.7168776313977 9.6604e-05 deg M 13.59207766115083 9.0483e-05 deg tp 2459143.886979054544 (2020-Oct-21.38697905) 0.00037698 TDB period 1499.453435188686 4.11 1.4231e-05 3.896e-08 d yr n .2400874822462885 2.2787e-09 deg/d Q 2.686306580161355 1.6997e-08 au   Orbit Determination Parameters    # obs. used (total)      575      data-arc span      7754 days (21.23 yr)      first obs. used      2000-01-08      last obs. used      2021-04-01      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47471      source      ORB      producer      Otto Matic      solution date      2021-May-04 11:46:58   Additional Information  Earth MOID = 1.49609 au   Jupiter MOID = 2.4239 au   T_jup = 3.389  [ 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 15.98   n/a MPCxxxxx   305074 (2007 UK104)          Discovered 2007-Oct-30 by Spacewatch at Kitt Peak Reference: 20111110/Numbers.arc Last Updated: 2011-11-14 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-11 21:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin