+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 MK) Classification: Apollo [NEO]          SPK-ID: 3825284 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2458280.5 (2018-Jun-11.0) TDB Reference: JPL 3 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4616802827830157 0.0013715   a 1.774497125132922 0.004495 au q .955246790603906 1.4064e-05 au i 26.70593215490704 0.041493 deg node 87.67409055316345 0.00042254 deg peri 221.4497256790274 0.030765 deg M 342.1413343968498 0.085038 deg tp 2458323.330967191811 (2018-Jul-23.83096719) 0.041206 TDB period 863.3986733214882 2.36 3.2806 0.008982 d yr n .4169568602822641 0.0015843 deg/d Q 2.593747459661938 0.0065703 au   Orbit Determination Parameters    # obs. used (total)      25      data-arc span      10 days      first obs. used      2018-06-08      last obs. used      2018-06-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .47311      source      ORB      producer      Otto Matic      solution date      2018-Jul-24 06:23:58   Additional Information  Earth MOID = .0188481 au   Jupiter MOID = 2.79613 au   T_jup = 3.858  [ 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 24.3   n/a E2018M39   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2020-Aug-05 14:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin