+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118933 (2000 WA27) Classification: Main-belt Asteroid          SPK-ID: 2118933 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07920094016518246 3.7521e-08   a 2.970408633465936 1.9242e-08 au q 2.735149477020659 1.1395e-07 au i 9.57935355371332 3.89e-06 deg node 256.0562242585301 2.6167e-05 deg peri 249.1243690315231 3.9899e-05 deg M 254.7992764382674 3.2627e-05 deg tp 2459746.935556028270 (2022-Jun-16.43555603) 0.00017191 TDB period 1869.918699320945 5.12 1.817e-05 4.975e-08 d yr n .1925217391166434 1.8707e-09 deg/d Q 3.205667789911213 2.0766e-08 au   Orbit Determination Parameters    # obs. used (total)      1004      data-arc span      7413 days (20.30 yr)      first obs. used      2000-10-25      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50036      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 16:59:33   Additional Information  Earth MOID = 1.76611 au   Jupiter MOID = 1.94024 au   T_jup = 3.237  [ 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 14.6   n/a MPO453660   diameter diameter 4.234 km 0.602 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.171   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   118933 (2000 WA27)          Discovered 2000-Nov-26 by Yeung, W. K. Y. at Desert Beaver Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  2000 WA27 = 2002 CH42  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-22 18:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin