+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100918 (1998 KF52) Classification: Main-belt Asteroid          SPK-ID: 2100918 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1894486533543503 3.2446e-08   a 2.367164581906922 1.0952e-08 au q 1.918708439596542 7.831e-08 au i 10.15679822284443 3.8017e-06 deg node 114.1340546894976 2.857e-05 deg peri 154.3125893601813 3.1694e-05 deg M 53.41218823177511 1.5588e-05 deg tp 2459003.130982950295 (2020-Jun-02.63098295) 5.7033e-05 TDB period 1330.274015915046 3.64 9.2324e-06 2.528e-08 d yr n .2706209365086105 1.8782e-09 deg/d Q 2.815620724217302 1.3027e-08 au   Orbit Determination Parameters    # obs. used (total)      688      data-arc span      8083 days (22.13 yr)      first obs. used      1998-05-23      last obs. used      2020-07-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57205      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:34:21   Additional Information  Earth MOID = .905915 au   Jupiter MOID = 2.31176 au   T_jup = 3.502  [ hide covariance matrix ] Orbital Elements at Epoch 2457286.5 (2015-Sep-21.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1891077201970155 3.2528e-08   q 1.920237396794764 7.8474e-08 au tp 2457672.159375547219 (2016-Oct-10.65937555) 5.4072e-05 TDB node 114.1734669943312 2.8558e-05 deg peri 154.1684702469994 3.1679e-05 deg i 10.15741413137913 3.8018e-06 deg   Orbit Determination Parameters    # obs. used (total)      688      data-arc span      8083 days (22.13 yr)      first obs. used      1998-05-23      last obs. used      2020-07-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57205      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:34:21   Additional Information  Jupiter MOID = 2.31176 au   T_jup = 3.502  Orbit Covariance (6×6)   e q tp node peri i e 1.058055658210472E-15 -2.536588255378669E-15 -3.734489262518211E-13 -1.01965391273845E-15 -8.472255036201459E-14 -7.145630778751365E-16 q -2.536588255378669E-15 6.158154372335181E-15 1.012062253353602E-12 2.439923668591029E-15 2.25923103392647E-13 1.940884994557206E-15 tp -3.734489262518211E-13 1.012062253353602E-12 2.923833992131295E-9 8.972888386829014E-12 7.70216945842127E-10 2.112108887651299E-12 node -1.01965391273845E-15 2.439923668591029E-15 8.972888386829014E-12 8.155788764762167E-10 -8.003266603856383E-10 1.866300295581332E-11 peri -8.472255036201459E-14 2.25923103392647E-13 7.70216945842127E-10 -8.003266603856383E-10 1.003546790250148E-9 -1.783342452105942E-11 i -7.145630778751365E-16 1.940884994557206E-15 2.112108887651299E-12 1.866300295581332E-11 -1.783342452105942E-11 1.445355958331929E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.86   n/a E2021B55   100918 (1998 KF52)          Discovered 1998-May-23 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1998 KF52 = 2002 PE124  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 22:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin