+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 TT) Classification: Amor [NEO]          SPK-ID: 3831186 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3082579713459396 9.0724e-07   a 1.537151889663099 4.3347e-07 au q 1.063312566504975 1.0954e-06 au i 15.65561052911727 8.8592e-05 deg node 193.3515904578939 2.6947e-05 deg peri 263.7696374847962 7.8752e-05 deg M 1.463005878774889 8.0278e-05 deg tp 2459197.671102757722 (2020-Dec-14.17110276) 0.00015441 TDB period 696.10315446777 1.91 0.00029445 8.062e-07 d yr n .5171647300970078 2.1876e-07 deg/d Q 2.010991212821224 5.671e-07 au   Orbit Determination Parameters    # obs. used (total)      51      data-arc span      926 days (2.54 yr)      first obs. used      2018-10-02      last obs. used      2021-04-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      2      norm. resid. RMS      .40935      source      ORB      producer      Otto Matic      solution date      2021-Apr-16 06:26:22   Additional Information  Earth MOID = .23437 au   Jupiter MOID = 3.28016 au   T_jup = 4.381  [ 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 22.5   .37365 E2019A02 autocmod 2.6q [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 22:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin