+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2017 DF38) Classification: Apollo [NEO]          SPK-ID: 3770152 [ 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 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04677423429648969 1.7904e-05   a 1.011420931238176 4.9599e-05 au q .9641124916280674 2.9342e-05 au i 16.51474773809376 0.010055 deg node 157.9414020564675 0.00033459 deg peri 263.8055420307082 0.049053 deg M 358.1009436258694 0.15766 deg tp 2459202.459889963003 (2020-Dec-18.95988996) 0.16285 TDB period 371.5320915651721 1.02 0.027329 7.482e-05 d yr n .9689607120704156 7.1275e-05 deg/d Q 1.058729370848284 5.1919e-05 au   Orbit Determination Parameters    # obs. used (total)      49      data-arc span      6 days      first obs. used      2017-02-25      last obs. used      2017-03-03      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      6      norm. resid. RMS      .49494      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 18:38:31   Additional Information  Earth MOID = .00647246 au   Jupiter MOID = 3.97521 au   T_jup = 5.989  [ 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 26.0   n/a MPO399930   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 22:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin