+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   10016 Yugan (1978 SW7) Classification: Main-belt Asteroid          SPK-ID: 2010016 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1396830655090892 3.7571e-08   a 2.457893092570856 7.5013e-09 au q 2.114567050706943 9.5673e-08 au i 4.556523074368171 3.8816e-06 deg node 332.7555011226449 3.9591e-05 deg peri 47.7198029370394 4.1718e-05 deg M 291.0679194372881 1.443e-05 deg tp 2459270.001878471806 (2021-Feb-24.50187847) 5.7033e-05 TDB period 1407.48219780751 3.85 6.4433e-06 1.764e-08 d yr n .2557758816138394 1.1709e-09 deg/d Q 2.801219134434769 8.5491e-09 au   Orbit Determination Parameters    # obs. used (total)      1847      data-arc span      16857 days (46.15 yr)      first obs. used      1974-09-14      last obs. used      2020-11-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46402      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:40:56   Additional Information  Earth MOID = 1.11986 au   Jupiter MOID = 2.67717 au   T_jup = 3.474  [ 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 14.2   n/a MPO473903   diameter diameter 2.980 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.500   0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   10016 Yugan           Discovered 1978 Sept. 26 by L. V. Zhuravleva at the Crimean Astrophysical Observatory. Yugan is the shortened name of Nefteyugansk, a town in western Siberia that is the center of the drilling operations of Ust'-Balyk and other oil fields. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040504/MPCPages.arc Last Updated: 2004-05-11 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2046-Aug-01 01:25 00:01 Amphi 0.0249639957524317 0.0249604154285485 0.0249675772873508 1.84691974721112 1.84691962252706 2468558.559314091 1.47797078024586 333.807641935679 43.7433819054511 -58.5208892045332 72868.4541856746 T 25 CATAB v2.0f-lin.ifort 2020-Dec-18 02:41:01 2020-Dec-18 02:41 Alternate Designations  1978 SW7 = 1974 RT1 = 1997 UO4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 10:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin