+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11574 d'Alviella (1994 BP3) Classification: Main-belt Asteroid          SPK-ID: 2011574 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2492963232225378 4.0342e-08   a 2.293461125729349 5.8268e-09 au q 1.7217096996312 9.2371e-08 au i 11.78999474192477 4.1997e-06 deg node 137.4546356509107 1.5638e-05 deg peri 195.9858826444606 1.6777e-05 deg M 340.7579023053645 6.3871e-06 deg tp 2459068.308699668013 (2020-Aug-06.80869967) 2.2624e-05 TDB period 1268.631532168671 3.47 4.8347e-06 1.324e-08 d yr n .2837703390397333 1.0814e-09 deg/d Q 2.865212551827498 7.2794e-09 au   Orbit Determination Parameters    # obs. used (total)      1835      data-arc span      15872 days (43.46 yr)      first obs. used      1977-02-18      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50013      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 00:25:48   Additional Information  Earth MOID = .713773 au   Jupiter MOID = 2.51102 au   T_jup = 3.528  [ 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 14.2   n/a MPO384859   diameter diameter 6.536 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 12.549 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Higgins, D.; Goncalves, R.M.D. (2007) Minor Planet Bull. 34, 16-18.] geometric albedo albedo 0.114   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   11574 d´Aviella           Discovered 1994 Jan. 16 by E. W. Elst at Caussols. Count Goblet d´Aviella was a Belgian historian. A Grandmaster of the Grand-Orient Belgian Masonic Lodge, he wrote a manual for the higher grades of freemasonry. He presided over the Belgian Academy and was a rector and professor at the Université Libre de Bruxelles. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20000523/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  1994 BP3 = 1977 DM2 = 1998 FY82  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-26 05:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin