+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102102 (1999 RK160) Classification: Main-belt Asteroid          SPK-ID: 2102102 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2132768746154064 4.7032e-08   a 2.169430484263104 8.0254e-09 au q 1.706741130884081 1.0275e-07 au i 4.073161761545008 4.6926e-06 deg node 23.87368267763008 5.2731e-05 deg peri 317.353698433122 5.3338e-05 deg M 237.9766116993223 8.8722e-06 deg tp 2459596.101212425425 (2022-Jan-16.60121243) 2.9846e-05 TDB period 1167.12409363871 3.20 6.4763e-06 1.773e-08 d yr n .3084504912220927 1.7116e-09 deg/d Q 2.632119837642126 9.737e-09 au   Orbit Determination Parameters    # obs. used (total)      641      data-arc span      9164 days (25.09 yr)      first obs. used      1995-03-27      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5631      source      ORB      producer      Otto Matic      solution date      2020-May-20 18:05:28   Additional Information  Earth MOID = .699649 au   Jupiter MOID = 2.7703 au   T_jup = 3.657  [ 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 16.34   n/a E2021B55   102102 (1999 RK160)          Discovered 1999-Sep-09 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-07 09:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin