+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101458 (1998 WJ6) Classification: Main-belt Asteroid          SPK-ID: 2101458 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2943916546500011 6.9422e-08   a 2.532035024352949 7.7246e-09 au q 1.786625043901928 1.7947e-07 au i 4.050773266607645 4.8257e-06 deg node 60.87028777585705 6.5928e-05 deg peri 326.1138806621142 6.6277e-05 deg M 185.6533705459522 6.8738e-06 deg tp 2459913.211957249003 (2022-Nov-29.71195725) 3.0483e-05 TDB period 1471.644765448514 4.03 6.7344e-06 1.844e-08 d yr n .2446242520288398 1.1194e-09 deg/d Q 3.277445004803968 9.9987e-09 au   Orbit Determination Parameters    # obs. used (total)      1196      data-arc span      9599 days (26.28 yr)      first obs. used      1994-12-03      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49892      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:36:53   Additional Information  Earth MOID = .791908 au   Jupiter MOID = 2.17637 au   T_jup = 3.385  [ 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 16.03   n/a E2021B55   diameter diameter 3.967 km 0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.048   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101458 (1998 WJ6)          Discovered 1998-Nov-22 by Boeuf, M. at Les Tardieux Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1998 WJ6 = 2002 NT51  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 23:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin