+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   75 Eurydike (A862 SA) Classification: Main-belt Asteroid          SPK-ID: 2000075 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 84 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3035218995677698 3.7114e-08   a 2.673994296663529 4.5238e-09 au q 1.862378468306832 9.9304e-08 au i 4.991512971275333 4.2205e-06 deg node 359.3390470962913 3.7141e-05 deg peri 339.336813800599 3.7474e-05 deg M 52.00910842538379 6.1697e-06 deg tp 2458769.763633192385 (2019-Oct-13.26363319) 2.7036e-05 TDB period 1597.125860557923 4.37 4.053e-06 1.11e-08 d yr n .2254049032017059 5.7201e-10 deg/d Q 3.485610125020226 5.8969e-09 au   Orbit Determination Parameters    # obs. used (total)      3612      data-arc span      57260 days (156.77 yr)      first obs. used      1864-02-02      last obs. used      2020-11-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46899      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:50:51   Additional Information  Earth MOID = .854684 au   Jupiter MOID = 1.92146 au   T_jup = 3.307  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 9.0   n/a MPO492749 IRAS observations used: 14 magnitude slope G 0.23   n/a PDS3 (MPC 17257) Fit diameter diameter 62.377 km 1.603 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 5.357 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.] [Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Shevchenko, V.G.; Bel'skaya, I.N.; Krugly, Yu.N.; Chiorny, V.G.; Gaftonyuk, N.M. (2002) Icarus 155, 365-374.] [Tungalag, N.; Shevchenko, V.G.; Lupishko, D.F. (2002) Kin. Fiz. Neb. Tel 18, 508-516; Kinematics and Physics of Celestial Bodies 18, ???-???.] geometric albedo albedo 0.117   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.710   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.92, mean=10.25, max.=14.69) deg. U-B UB 0.266   0.019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.92, mean=10.25, max.=14.69) deg. Tholen spectral type spec_T M   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo SMASSII spectral type spec_B Xk   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 75 Eurydike (A862 SA)          Discovered 1862-Sep-22 by Peters, C. H. F. at Clinton Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A862 SA = 1947 BC = 1958 SA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 22:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin