+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07912982844654451 4.6923e-08   a 2.970207872471144 2.3148e-08 au q 2.735175833071926 1.3473e-07 au i 9.579493328573548 4.8859e-06 deg node 256.0546075532388 2.885e-05 deg peri 249.2248992949838 4.2057e-05 deg M 216.1769483737191 3.2529e-05 deg tp 2459747.472636340147 (2022-Jun-16.97263634) 0.00017219 TDB period 1869.729129244221 5.12 2.1858e-05 5.984e-08 d yr n .1925412587145811 2.2509e-09 deg/d Q 3.205239911870361 2.498e-08 au   Orbit Determination Parameters    # obs. used (total)      814      data-arc span      7221 days (19.77 yr)      first obs. used      2000-10-25      last obs. used      2020-08-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51969      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 10:04:40   Additional Information  Earth MOID = 1.76625 au   Jupiter MOID = 1.94127 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 ] 2020-Oct-21 10:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin