+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58214 Amorim (1992 RA2) Classification: Main-belt Asteroid          SPK-ID: 2058214 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1588842757451029 4.2457e-08   a 2.847078089732466 1.9309e-08 au q 2.394722149455572 1.2154e-07 au i 14.38814328100998 5.5616e-06 deg node 336.5222539777336 1.7536e-05 deg peri 50.87398199409784 2.5164e-05 deg M 245.4746376508766 1.8311e-05 deg tp 2459558.708787942282 (2021-Dec-10.20878794) 9.1458e-05 TDB period 1754.678261105362 4.80 1.7851e-05 4.887e-08 d yr n .2051658175631683 2.0872e-09 deg/d Q 3.299434030009359 2.2377e-08 au   Orbit Determination Parameters    # obs. used (total)      777      data-arc span      9738 days (26.66 yr)      first obs. used      1992-09-02      last obs. used      2019-05-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54617      source      ORB      producer      Otto Matic      solution date      2019-May-30 05:12:45   Additional Information  Earth MOID = 1.42398 au   Jupiter MOID = 2.28135 au   T_jup = 3.242  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.3   n/a MPO436189   diameter diameter 5.005 km 1.481 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.147   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   58214 Amorim           Discovered 1992 Sept. 2 by E. W. Elst at the European Southern Observatory. Regina Helena Caldas de Amorim (b. 1948) is a Brazilian neuro-pediatrician at Belo Horizonte (Minas Gerais), where she teaches in the Federal University's medical department. She specialized at the University René Descartes in Paris during 1974-1979. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20090209/MPCPages.arc Last Updated: 2009-02-11 [ show close-approach data ] Alternate Designations  1992 RA2 = 1997 SY9  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 14:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin