+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   1143 Odysseus (1930 BH) Classification: Jupiter Trojan          SPK-ID: 2001143 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09108205989734867 6.0804e-08   a 5.249144742096933 8.3575e-08 AU q 4.771041826287407 3.5797e-07 AU i 3.137803508542631 7.3916e-06 deg node 221.2950330758931 0.00012641 deg peri 236.7418010801888 0.00013416 deg M 35.89135647507991 4.3675e-05 deg tp 2455962.555959419171 (2012-Feb-05.05595942) 0.0005331 JED period 4392.697019366348 12.03 0.00010491 2.872e-07 d yr n .08195420681482157 1.9573e-09 deg/d Q 5.727247657906458 9.1187e-08 AU   Orbit Determination Parameters    # obs. used (total)      1341      data-arc span      30364 days (83.13 yr)      first obs. used      1930-02-19      last obs. used      2013-04-08      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .6466      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:42:02   Additional Information  Earth MOID = 3.78854 AU   T_jup = 2.989  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 7.93 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11 diameter diameter 125.64 km 3.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11 rotation period rot_per 10.111 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Molnar, L.A.; Haegert, M.J.; Hoogenboom, K.M. (2008) Minor Planet Bul. 35, 82-84.] [Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.] [Shevchenko, V.G.; Belskya, I.N.; Slyusarev, L.G.; Krugly, Yu.N.; et al. (2012) Icarus 217, 202-208.] geometric albedo albedo 0.0753   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11 B-V BV .794 mag .038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=3.90, mean=4.30, max.=4.87) deg. U-B UB .241 mag .030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=3.90, mean=4.30, max.=4.87) deg. Tholen spectral type spec_T D   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices; used ground-based radiometric albedo 1143 Odysseus (1930 BH)          Discovered 1930-Jan-28 by Reinmuth, K. at Heidelberg (024) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 15:44 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin