+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4583 Lugo (1989 RL4) Classification: Main-belt Asteroid          SPK-ID: 2004583 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1922713763664363 3.1503e-08   a 2.352553675011972 6.9818e-09 au q 1.900224941941502 7.3852e-08 au i 3.745232030878682 3.6556e-06 deg node 164.4624314080611 4.4449e-05 deg peri 142.3289301446962 4.5105e-05 deg M 218.7134659910185 9.1204e-06 deg tp 2459517.756561855375 (2021-Oct-30.25656186) 3.4541e-05 TDB period 1317.976717130717 3.61 5.8672e-06 1.606e-08 d yr n .2731459481194273 1.216e-09 deg/d Q 2.804882408082442 8.3243e-09 au   Orbit Determination Parameters    # obs. used (total)      2683      data-arc span      24303 days (66.54 yr)      first obs. used      1953-10-14      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46779      source      ORB      producer      Otto Matic      solution date      2020-May-20 02:09:44   Additional Information  Earth MOID = .887126 au   Jupiter MOID = 2.45239 au   T_jup = 3.529  [ 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 13.3   n/a MPO458876   diameter diameter 13.761 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.053   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   4583 Lugo           Discovered 1989 Sept. 1 at Smolyan. Raymond Lugo (b. 1957) helped further the exploration of the planets through his dedication and hard work as deputy launch services manager on NASA's New Horizons Pluto-Kuiper Belt mission. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20051215/MPCPages.arc Last Updated: 2006-03-22 [ show close-approach data ] Alternate Designations  1989 RL4 = 1953 TR2 = 1964 VK = 1971 SH1 = 1974 HD1 = 1975 VM1 = 1982 UA1 = 1989 TY16  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-18 12:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin