+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2001 KF54) Classification: Apollo [NEO, PHA]          SPK-ID: 3076814 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6502148471204611 7.7425e-08   a 2.339149839724032 1.5621e-08 au q .8181998842960193 1.8233e-07 au i 1.630014071977374 7.531e-06 deg node 172.4877167529924 0.0013926 deg peri 170.8415661631744 0.0013898 deg M 82.95339224520534 1.2801e-05 deg tp 2458699.395573358377 (2019-Aug-03.89557336) 4.8742e-05 TDB period 1306.728883016229 3.58 1.3089e-05 3.584e-08 d yr n .2754970864109453 2.7596e-09 deg/d Q 3.860099795152044 2.5777e-08 au   Orbit Determination Parameters    # obs. used (total)      70      data-arc span      6781 days (18.57 yr)      first obs. used      2001-05-26      last obs. used      2019-12-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43382      source      ORB      producer      Otto Matic      solution date      2020-Jul-30 07:15:45   Additional Information  Earth MOID = .0205909 au   Jupiter MOID = 1.56903 au   T_jup = 3.243  [ 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 20.1   n/a E2019Y61   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-21 17:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin