+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190572 (2000 SK209) Classification: Main-belt Asteroid          SPK-ID: 2190572 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2286337292220758 5.1869e-08   a 2.575472963965765 1.7378e-08 au q 1.98663297570364 1.2912e-07 au i 6.686153508293991 6.0231e-06 deg node 67.50629299493686 5.036e-05 deg peri 354.5022832909733 5.2416e-05 deg M 289.4021086973414 1.7276e-05 deg tp 2459496.555509925296 (2021-Oct-09.05550993) 7.3985e-05 TDB period 1509.676586743785 4.13 1.5279e-05 4.183e-08 d yr n .2384616699769335 2.4135e-09 deg/d Q 3.164312952227891 2.1351e-08 au   Orbit Determination Parameters    # obs. used (total)      402      data-arc span      7271 days (19.91 yr)      first obs. used      2000-09-25      last obs. used      2020-08-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5251      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 22:08:14   Additional Information  Earth MOID = .99921 au   Jupiter MOID = 2.17651 au   T_jup = 3.381  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.78   n/a E2021B55   190572 (2000 SK209)          Discovered 2000-Sep-25 by LINEAR at Socorro Reference: 20080917/Numbers.arc Last Updated: 2008-09-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 21:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin