+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   64 Angelina Classification: Main-belt Asteroid          SPK-ID: 2000064 [ 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 80 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1267057078921512 3.7256e-08   a 2.680511571351873 6.2024e-09 AU q 2.340875455190631 9.993e-08 AU i 1.3101729001791 4.2546e-06 deg node 309.1729535726627 0.00028273 deg peri 179.2514104288203 0.00028416 deg M 264.4505319511331 2.51e-05 deg tp 2456825.952156365006 (2014-Jun-17.45215636) 0.00011204 JED period 1602.968382964413 4.39 5.5636e-06 1.523e-08 d yr n .2245833441419737 7.7949e-10 deg/d Q 3.020147687513114 6.9883e-09 AU   Orbit Determination Parameters    # obs. used (total)      1511      data-arc span      55432 days (151.76 yr)      first obs. used      1861-03-08      last obs. used      2012-12-13      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .61084      data source      ORB      producer      Otto Matic      solution date      2013-Mar-29 15:04:56   Additional Information  Earth MOID = 1.35547 AU   T_jup = 3.365  [ 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 7.67 mag n/a PDS3 (MPC 17257)   magnitude slope G 0.48   n/a PDS3 (MPC 17257) Fit rotation period rot_per 8.752 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Poutanen, M. (1983) in Asteroids, Comets, Meteors. C.-I. Lagerkvist, H. Rickman, eds. Uppsala, pp. 45-48.] [Harris, A.W.; Young, J.W.; Contreiras, L.; Dockweiler, T.; et al. (1989) Icarus 81, 365-374.] [Harris, A.W.; Young, J.W.; Contreiras, L.; Dockweiler, T.; et al. (1989) Icarus 81, 365-374.] [Michalowski, T. (1993) Icarus 106, 563-572.] [Rosenbush, V.K.; Kiselev, N.N.; Shevchenko, V.G.; Jockers, K.; et al. (2005) Icarus 178, 222-234.] [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durech, J. (2006) IAU 2006, poster paper.] [Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.] geometric albedo albedo 0.157   n/a EAR-A-5-DDR-ALBEDOS-V1.0:TRIAD IMPS quality code 2: from the PDS IMPS singleton file B-V BV .734 mag .037 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=7; phase (min.=4.80, mean=9.35, max.=16.41) deg. U-B UB .254 mag .040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=7; phase (min.=4.80, mean=9.35, max.=16.41) deg. Tholen spectral type spec_T E   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo SMASSII spectral type spec_B Xe   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) 64 Angelina          Discovered 1861-Mar-04 by Tempel, E. W. at Marseille Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1930 QY  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 23:32 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin