+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15453 Brasileirinhos (1998 XD96) Classification: Main-belt Asteroid          SPK-ID: 2015453 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08178625880670473 3.6389e-08   a 2.907611185327143 1.4591e-08 au q 2.669808544414707 1.0767e-07 au i 3.140876316828451 3.5811e-06 deg node 117.3669851202783 7.3596e-05 deg peri 282.8804019726712 7.6749e-05 deg M 192.400731170943 2.3189e-05 deg tp 2459843.587289881249 (2022-Sep-21.08728988) 0.00011888 TDB period 1810.935253344191 4.96 1.3631e-05 3.732e-08 d yr n .1987923087449982 1.4963e-09 deg/d Q 3.145413826239578 1.5784e-08 au   Orbit Determination Parameters    # obs. used (total)      1604      data-arc span      13292 days (36.39 yr)      first obs. used      1984-01-25      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .505      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 17:50:14   Additional Information  Earth MOID = 1.67998 au   Jupiter MOID = 2.18774 au   T_jup = 3.277  [ 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 14.1   n/a MPO473975   diameter diameter 4.145 km 1.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.307   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15453 Brasileirinhos           Discovered 1998 Dec. 12 by O. A. Naranjo at Merida. The name Brasileirinhos, meaning "Young Brazilians", was chosen by the winners of the third Grande Desafío organized by the Museu Exploratorio de Ciencias of the Universidade Estadual de Campinas to encourage all Brazilian students in their efforts to achieve the necessary goals in their studies. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20100726/MPCPages.arc Last Updated: 2010-07-28 Alternate Designations  1998 XD96 = 1984 BM3 = 1989 CU4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-03 13:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin