+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 MD7) Classification: Aten [NEO]          SPK-ID: 3825486 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1100320462955627 4.4985e-07   a .9471719749208719 2.6822e-07 au q .8429527043265189 5.924e-07 au i 8.225732983377606 5.2133e-05 deg node 134.35610529245 2.7585e-05 deg peri 313.2214446317705 0.00016544 deg M 229.0290975042632 0.0002948 deg tp 2459122.993771267911 (2020-Sep-30.49377127) 0.00031711 TDB period 336.6988912509274 0.92 0.00014302 3.916e-07 d yr n 1.069204590078995 4.5416e-07 deg/d Q 1.051391245515225 2.9773e-07 au   Orbit Determination Parameters    # obs. used (total)      64      # delay obs. used      0      # Doppler obs. used      1      data-arc span      43 days      first obs. used      2018-06-21      last obs. used      2018-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .43036      source      ORB      producer      Otto Matic      solution date      2019-Aug-05 05:59:04   Additional Information  Earth MOID = .00152922 au   Jupiter MOID = 4.01959 au   T_jup = 6.333  [ 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 22.7   n/a MPO477907   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2020-Dec-01 12:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin