+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118994 (2000 YS28) Classification: Inner Main-belt Asteroid          SPK-ID: 2118994 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07075460999575142 5.0357e-08   a 1.922091966728552 9.5055e-09 au q 1.786095099246706 9.4648e-08 au i 18.97341493706359 5.9348e-06 deg node 242.9966559936379 1.6771e-05 deg peri 264.7422925369717 4.7097e-05 deg M 131.5257598604044 4.29e-05 deg tp 2458844.894891696217 (2019-Dec-27.39489170) 0.00011651 TDB period 973.3290203016822 2.66 7.2203e-06 1.977e-08 d yr n .369864652641733 2.7437e-09 deg/d Q 2.058088834210397 1.0178e-08 au   Orbit Determination Parameters    # obs. used (total)      332      data-arc span      7652 days (20.95 yr)      first obs. used      1999-06-14      last obs. used      2020-05-26      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58026      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 16:59:50   Additional Information  Earth MOID = .879189 au   Jupiter MOID = 3.05168 au   T_jup = 3.854  [ 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 16.86   n/a E2021B55   118994 (2000 YS28)          Discovered 2000-Dec-28 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 06:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin