+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   13181 Peneleos (1996 RS28) Classification: Jupiter Trojan          SPK-ID: 2013181 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1359335360146077 3.9877e-08   a 5.219765269124478 1.0078e-07 au q 4.510224118926147 2.4208e-07 au i 2.544312781298491 6.576e-06 deg node 10.9228142127608 9.225e-05 deg peri 103.8657352891923 9.6988e-05 deg M 243.0921239921333 3.3737e-05 deg tp 2460415.043008346161 (2024-Apr-14.54300835) 0.00043878 TDB period 4355.86977023132 11.93 0.00012615 3.454e-07 d yr n .08264709896983033 2.3935e-09 deg/d Q 5.929306419322809 1.1448e-07 au   Orbit Determination Parameters    # obs. used (total)      889      data-arc span      15571 days (42.63 yr)      first obs. used      1978-03-15      last obs. used      2020-10-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56309      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:48:07   Additional Information  Earth MOID = 3.52782 au   Jupiter MOID = .195924 au   T_jup = 2.979  [ 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 12.0   n/a MPO452356   13181 Peneleos           Discovered 1996 Sept. 11 at the European Southern Observatory during the Uppsala-DLR Trojan Survey. Peneleos, leader of Boeotia, killed by Eurypylus, is said to have been one of those inside the wooden horse. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010309/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1996 RS28 = 1978 EW8 = 1997 UY11  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-04 09:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin