+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   243877 (2000 YR1) Classification: Main-belt Asteroid          SPK-ID: 2243877 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1819555428457409 7.5912e-08   a 2.553571439558534 2.0155e-08 au q 2.088934962078281 2.0045e-07 au i 15.10227362558036 5.3309e-06 deg node 302.1200060003151 2.468e-05 deg peri 32.14632183816369 2.9817e-05 deg M 347.2243909939593 1.4692e-05 deg tp 2459053.393165186370 (2020-Jul-22.89316519) 6.0512e-05 TDB period 1490.460412344332 4.08 1.7646e-05 4.831e-08 d yr n .2415361032191115 2.8597e-09 deg/d Q 3.018207917038787 2.3823e-08 au   Orbit Determination Parameters    # obs. used (total)      657      data-arc span      7274 days (19.92 yr)      first obs. used      2000-12-17      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48437      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 00:09:32   Additional Information  Earth MOID = 1.09119 au   Jupiter MOID = 2.35529 au   T_jup = 3.368  [ 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 15.6   n/a MPO437138   243877 (2000 YR1)          Discovered 2000-Dec-17 by LINEAR at Socorro Reference: 20100726/Numbers.arc Last Updated: 2010-07-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-28 06:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin