+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   49987 Bonata (2000 AB5) Classification: Main-belt Asteroid          SPK-ID: 2049987 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1203547457183217 3.8346e-08   a 2.658584297348836 1.2855e-08 au q 2.338611060270694 9.9535e-08 au i 13.93722671778334 4.136e-06 deg node 107.683630272415 1.9505e-05 deg peri 177.1031745951451 2.7509e-05 deg M 134.7299629764524 2.0316e-05 deg tp 2458607.935309297483 (2019-May-04.43530930) 8.8122e-05 TDB period 1583.339622012587 4.33 1.1484e-05 3.144e-08 d yr n .2273675179949094 1.649e-09 deg/d Q 2.978557534426979 1.4402e-08 au   Orbit Determination Parameters    # obs. used (total)      1282      data-arc span      10990 days (30.09 yr)      first obs. used      1990-12-17      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48883      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 05:03:52   Additional Information  Earth MOID = 1.32035 au   Jupiter MOID = 2.18855 au   T_jup = 3.335  [ 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 14.3   n/a MPO439432   diameter diameter 3.256 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.418   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   49987 Bonata           Discovered 2000 Jan. 3 by L. Tesi and G. Forti at San Marcello Pistoiese. Italian aerospace engineer Diego Bonata (b. 1968) has promoted laws for the control of light pollution and energy saving through the Cielobuio Association, of which he is president. At the Carl Sagan Observatory in Brignano Gera d´Adda he has developed new environmentally compatible technologies for lighting engineering. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070926/MPCPages.arc Last Updated: 2007-09-30 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-25 16:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin