+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 UC) Classification: Apollo [NEO]          SPK-ID: 54073343 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3035048488382961 0.0006384   a 1.241220362967259 0.00089688 au q .864503964329866 0.00018138 au i 2.694324930742064 0.0048912 deg node 29.10470654751487 0.0029035 deg peri 62.98637211512179 0.021155 deg M 4.851996690384599 0.016559 deg tp 2459193.692466929183 (2020-Dec-10.19246693) 0.030377 TDB period 505.093482514303 1.38 0.54745 0.001499 d yr n .7127393491754385 0.00077251 deg/d Q 1.617936761604652 0.0011691 au   Orbit Determination Parameters    # obs. used (total)      15      data-arc span      1 day      first obs. used      2020-10-16      last obs. used      2020-10-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .48686      source      ORB      producer      Otto Matic      solution date      2020-Oct-17 11:42:22   Additional Information  Earth MOID = .00104044 au   Jupiter MOID = 3.56797 au   T_jup = 5.122  [ 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 27.59   .1968 E2020U88 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-07 00:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin