+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2490895357807949 1.596e-08   a 2.292873087921686 4.5257e-09 au q 1.721742394846995 3.6317e-08 au i 11.7905994030526 1.3989e-06 deg node 137.4549228384038 4.5269e-06 deg peri 195.9899308380435 4.8961e-06 deg M 37.52440402465616 3.092e-06 deg tp 2459068.315736736421 (2020-Aug-06.81573674) 1.0831e-05 TDB period 1268.143652424727 3.47 3.7546e-06 1.028e-08 d yr n .2838795110567085 8.4049e-10 deg/d Q 2.864003780996377 5.653e-09 au   Orbit Determination Parameters    # obs. used (total)      2329      data-arc span      16088 days (44.05 yr)      first obs. used      1977-02-18      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46661      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:51:12   Additional Information  Earth MOID = .711886 au   Jupiter MOID = 2.51247 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 14.24   n/a E2021B10   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. 2020-October); 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 ] 2021-Apr-16 18:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin