+ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1359335152231523 4.9959e-08   a 5.2197652561886 1.0898e-07 au q 4.510224216275206 2.7078e-07 au i 2.544311257526495 6.8979e-06 deg node 10.92276346859219 0.00011709 deg peri 103.8657940190564 0.00012087 deg M 243.0921115487214 3.3845e-05 deg tp 2460415.043153648558 (2024-Apr-14.54315365) 0.00044153 TDB period 4355.869754038925 11.93 0.00013641 3.735e-07 d yr n .08264709927706047 2.5882e-09 deg/d Q 5.929306296101994 1.2379e-07 au   Orbit Determination Parameters    # obs. used (total)      750      data-arc span      15241 days (41.73 yr)      first obs. used      1978-03-15      last obs. used      2019-12-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58896      source      ORB      producer      Otto Matic      solution date      2019-Dec-13 23:31:57   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-Jul-04 23:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin