+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   187898 (2000 ST213) Classification: Main-belt Asteroid          SPK-ID: 2187898 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2278124181141133 6.5196e-08   a 2.780405118564693 2.3264e-08 au q 2.146994305167613 1.7882e-07 au i 10.12443250380542 4.572e-06 deg node 142.9679651220168 3.6315e-05 deg peri 248.224790775315 3.7535e-05 deg M 122.8360072119902 1.1322e-05 deg tp 2458622.691752763764 (2019-May-19.19175276) 4.8939e-05 TDB period 1693.403861996752 4.64 2.1254e-05 5.819e-08 d yr n .2125895706742462 2.6682e-09 deg/d Q 3.413815931961774 2.8564e-08 au   Orbit Determination Parameters    # obs. used (total)      370      data-arc span      7527 days (20.61 yr)      first obs. used      2000-08-05      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54919      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:57:16   Additional Information  Earth MOID = 1.17461 au   Jupiter MOID = 2.12702 au   T_jup = 3.273  [ 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 15.9   n/a MPO320890   187898 (2000 ST213)          Discovered 2000-Sep-25 by LINEAR at Socorro Reference: 20080618/Numbers.arc Last Updated: 2008-06-20 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 00:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin