+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 FH1) Classification: Aten [NEO]          SPK-ID: 3801994 [ 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 7 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1773176883182486 1.1572e-06   a .9383736392122268 1.9005e-06 au q .7719833947283326 2.1942e-06 au i 3.544743223928294 6.4406e-05 deg node 181.3934652066822 3.9062e-05 deg peri 232.9534635703681 0.00054998 deg M 257.1044344779344 0.0031099 deg tp 2459095.397830325824 (2020-Sep-02.89783033) 0.0031558 TDB period 332.0183794506717 0.91 0.0010087 2.762e-06 d yr n 1.084277324031351 3.2941e-06 deg/d Q 1.104763883696121 2.2375e-06 au   Orbit Determination Parameters    # obs. used (total)      46      # delay obs. used      1      # Doppler obs. used      1      data-arc span      5 days      first obs. used      2018-03-18      last obs. used      2018-03-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      4      norm. resid. RMS      .406      source      ORB      producer      Otto Matic      solution date      2020-Nov-05 15:25:47   Additional Information  Earth MOID = .00799936 au   Jupiter MOID = 4.11382 au   T_jup = 6.379  [ 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 26.6   n/a MPO439046   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-27 01:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin