+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118761 (2000 QB220) Classification: Main-belt Asteroid          SPK-ID: 2118761 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2354849023993945 4.3785e-08   a 2.721657857473313 1.4582e-08 au q 2.080748522541665 1.2098e-07 au i 2.699893051293591 5.4195e-06 deg node 286.9139768501026 0.00010282 deg peri 95.45624719510637 0.0001037 deg M 151.0690995438847 1.2388e-05 deg tp 2458512.288604118798 (2019-Jan-28.78860412) 5.4036e-05 TDB period 1640.018397311364 4.49 1.318e-05 3.608e-08 d yr n .2195097326896953 1.7641e-09 deg/d Q 3.362567192404961 1.8016e-08 au   Orbit Determination Parameters    # obs. used (total)      573      data-arc span      15117 days (41.39 yr)      first obs. used      1978-11-01      last obs. used      2020-03-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56804      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 18:09:08   Additional Information  Earth MOID = 1.0848 au   Jupiter MOID = 2.11637 au   T_jup = 3.316  [ 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 3.763 km 0.774 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   geometric albedo albedo 0.054   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   118761 (2000 QB220)          Discovered 2000-Aug-21 by LONEOS at Anderson Mesa Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  2000 QB220 = 1978 VE1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-10 20:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin