+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   83 Beatrix (A865 HA) Classification: Main-belt Asteroid          SPK-ID: 2000083 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 110 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08116161564357458 1.5946e-08   a 2.431611964465073 4.9357e-09 au q 2.234258408810842 4.1008e-08 au i 4.964051160594022 6.357e-07 deg node 27.72517552543676 5.76e-06 deg peri 168.6331341207672 1.6128e-05 deg M 25.52034541726215 1.7603e-05 deg tp 2459102.319806934945 (2020-Sep-09.81980693) 6.7592e-05 TDB period 1384.968303740605 3.79 4.2169e-06 1.155e-08 d yr n .2599337465180182 7.9143e-10 deg/d Q 2.628965520119305 5.3363e-09 au   Orbit Determination Parameters    # obs. used (total)      2811      data-arc span      56890 days (155.76 yr)      first obs. used      1865-05-13      last obs. used      2021-02-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45277      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 10:15:58   Additional Information  Earth MOID = 1.23171 au   Jupiter MOID = 2.32491 au   T_jup = 3.497  [ 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 8.77   n/a E2021B10 IRAS observations used: 15 diameter diameter 110.503 km 0.829 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 10.111 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Zappala, V.; Scaltriti, F.; Di Martino, M. (1983) Icarus 56, 325-344.] [Krugly, Yu.N.; Shevchenko, V.G.; Velichko, F.P.; Bowell, E.; et al. (1994) Astron. Astrophys. Suppl. Ser. 108, 143-149.] [Pilcher, F. (2020) Minor Planet Bull. 47, 192-195.] geometric albedo albedo 0.050   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.704   0.017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=14.38, mean=17.99, max.=21.25) deg. U-B UB 0.266   0.027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=14.38, mean=17.99, max.=21.25) deg. Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices SMASSII spectral type spec_B X   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) 83 Beatrix (A865 HA)          Discovered 1865-Apr-26 by De Gasparis, A. at Naples Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A865 HA = 1950 QV  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-22 15:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin