+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16781 Rencin (1996 XU18) Classification: Main-belt Asteroid          SPK-ID: 2016781 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1511290408443436 2.9571e-08   a 3.162481261231955 1.4892e-08 au q 2.68453850153376 9.3897e-08 au i 2.435330536488149 3.6466e-06 deg node 123.6552011878394 0.00010217 deg peri 331.5770977047285 0.00010333 deg M 100.1744328859648 1.4883e-05 deg tp 2458628.896657325641 (2019-May-25.39665733) 8.4317e-05 TDB period 2054.18885272871 5.62 1.451e-05 3.973e-08 d yr n .1752516568872375 1.2379e-09 deg/d Q 3.64042402093015 1.7143e-08 au   Orbit Determination Parameters    # obs. used (total)      2027      data-arc span      9310 days (25.49 yr)      first obs. used      1995-09-18      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50883      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:41:31   Additional Information  Earth MOID = 1.70142 au   Jupiter MOID = 1.53854 au   T_jup = 3.185  [ 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 13.34   n/a E2021B10   diameter diameter 10.454 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.102   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   16781 Renčín           Discovered 1996 Dec. 12 by M. Tichy and Z. Moravec at Klet. Vladimír Renčín (b. 1941) is a Czech graphic artist, illustrator and cartoonist. He published several books of cartoons, where various features of the Czech character are illustrated. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010309/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 12:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin