+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 GD2) Classification: Apollo [NEO]          SPK-ID: 3802441 [ 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 .1737228116901693 9.2818e-05   a 1.030606537336494 4.4788e-05 au q .851566671924129 5.8879e-05 au i 9.674357324018741 0.0054684 deg node 22.20337238107206 0.00030279 deg peri 270.6691912076551 0.02945 deg M 130.8240018453094 0.073449 deg tp 2459061.625440183867 (2020-Jul-31.12544018) 0.068918 TDB period 382.1534338394844 1.05 0.024911 6.82e-05 d yr n .9420300018845587 6.1408e-05 deg/d Q 1.20964640274886 5.2569e-05 au   Orbit Determination Parameters    # obs. used (total)      13      data-arc span      1 day      first obs. used      2018-04-11      last obs. used      2018-04-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      6      norm. resid. RMS      .46932      source      ORB      producer      Otto Matic      solution date      2018-Apr-12 12:12:03   Additional Information  Earth MOID = .000162821 au   Jupiter MOID = 3.91174 au   T_jup = 5.913  [ 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 29.4   n/a MPO445231   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-07 22:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin