+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   359351 (2009 SH289) Classification: Jupiter Trojan          SPK-ID: 2359351 [ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1130516385919235 1.4401e-07   a 5.175356960743444 5.1958e-07 au q 4.59027437603328 1.15e-06 au i 8.486146144286566 9.8032e-06 deg node 55.49669421691998 7.0447e-05 deg peri 5.031194528295614 0.00011644 deg M 299.7239251891489 0.00011729 deg tp 2459720.531264025411 (2022-May-21.03126403) 0.0015005 TDB period 4300.40038045881 11.77 0.00064761 1.773e-06 d yr n .08371313555729701 1.2607e-08 deg/d Q 5.760439545453607 5.7832e-07 au   Orbit Determination Parameters    # obs. used (total)      115      data-arc span      3625 days (9.92 yr)      first obs. used      2009-09-18      last obs. used      2019-08-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61508      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 06:44:36   Additional Information  Earth MOID = 3.60308 au   Jupiter MOID = .300498 au   T_jup = 2.966  [ 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 13.8   n/a MPO494868   359351 (2009 SH289)          Discovered 2009-Sep-18 by Spacewatch at Kitt Peak Reference: 20130327/Numbers.arc Last Updated: 2013-03-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-03 13:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin