+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5254 Ulysses (1986 VG1) Classification: Jupiter Trojan          SPK-ID: 2005254 [ 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 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1223243304832023 5.414e-08   a 5.229457826889925 9.433e-08 au q 4.589767899425472 3.2782e-07 au i 24.1917427674183 5.4047e-06 deg node 76.02397924802865 1.3538e-05 deg peri 343.4752402158751 2.7457e-05 deg M 287.3439200882488 2.7335e-05 deg tp 2459882.062049246948 (2022-Oct-29.56204925) 0.00034214 TDB period 4368.007992096086 11.96 0.00011819 3.236e-07 d yr n .08241743161904014 2.23e-09 deg/d Q 5.869147754354376 1.0587e-07 au   Orbit Determination Parameters    # obs. used (total)      1907      data-arc span      25215 days (69.03 yr)      first obs. used      1951-11-04      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45448      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:21:27   Additional Information  Earth MOID = 3.60956 au   Jupiter MOID = .471993 au   T_jup = 2.810  [ 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 9.2   n/a MPO384801   diameter diameter 76.147 km 0.396 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   rotation period rot_per 28.72 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] geometric albedo albedo 0.070   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   5254 Ulysses (1986 VG1)          Discovered 1986-Nov-07 by Elst, E. W. at Haute Provence Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1986 VG1 = 1990 FN  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-28 06:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin