+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2015 FW284) Classification: Aten [NEO]          SPK-ID: 3715092 [ 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 4 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5445844670834085 0.0011522   a .7773726212338765 5.1471e-05 au q .3540275665739935 0.00091916 au i 2.536710258321798 0.010016 deg node 149.5381968968403 0.069828 deg peri 188.4326524859896 0.057723 deg M 24.32620296237218 0.4559 deg tp 2459183.583359764073 (2020-Nov-30.08335976) 0.31535 TDB period 250.3469404721137 0.69 0.024864 6.807e-05 d yr n 1.438004392308923 0.00014282 deg/d Q 1.200717675893759 7.9502e-05 au   Orbit Determination Parameters    # obs. used (total)      19      data-arc span      5 days      first obs. used      2015-03-25      last obs. used      2015-03-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      6      norm. resid. RMS      .36468      source      ORB      producer      Otto Matic      solution date      2018-Feb-10 07:06:23   Additional Information  Earth MOID = .0196374 au   Jupiter MOID = 4.19003 au   T_jup = 7.341  [ 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 24.9   n/a MPO438013   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-04 20:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin